ACTIVE ASSETS TAX FREE TRUST
497, 1994-08-25
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<PAGE>
                           ACTIVE ASSETS MONEY TRUST
                          ACTIVE ASSETS TAX-FREE TRUST
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
                              --------------------

    THIS  DOCUMENT CONSISTS  OF THE PROSPECTUSES  OF ACTIVE  ASSETS MONEY TRUST,
ACTIVE ASSETS TAX-FREE TRUST, ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST AND ACTIVE
ASSETS GOVERNMENT SECURITIES TRUST (COLLECTIVELY, THE "TRUSTS") AND AN  APPENDIX
TO  SUCH PROSPECTUSES  WHICH CONSTITUTES  PART OF  THE PROSPECTUSES.  A TABLE OF
CONTENTS IS CONTAINED ON PAGE 1 OF EACH PROSPECTUS.
                            ------------------------

    Each Trust is a diversified  open-end management investment company  seeking
high  current income, preservation of capital  and liquidity from investments in
short-term securities.  Active  Assets  Money  Trust  invests  in  money  market
instruments  generally; Active  Assets Tax-Free  Trust invests  in high quality,
short-term tax-exempt securities and pays dividends exempt from federal personal
income taxation;  Active  Assets  California  Tax-Free  Trust  invests  in  high
quality,  short-term California tax-exempt securities  and pays dividends exempt
from  federal  and  California  personal  income  taxation;  and  Active  Assets
Government  Securities  Trust  invests  in money  market  instruments  issued or
guaranteed by the United States Government or its agencies or instrumentalities.

    The Active Assets -R- Account financial service program ("Active Assets") of
Dean Witter Reynolds Inc. ("Dean Witter")  provides a medium for the  investment
of  free credit cash balances held in the Active Assets account in shares of the
Trusts. An  Active Assets  account  is a  Dean  Witter securities  account  (the
"Securities Account") which is linked to the Trusts, a Federal Deposit Insurance
Corporation  ("FDIC") insured bank account (the "Active Assets Insured Account")
maintained at a bank  which has entered  into an agreement  with Dean Witter  to
participate in Active Assets and a Visa-R- check/card account maintained by Bank
One, Columbus, N.A., Columbus, Ohio ("Visa Account").

    The  annual fee for participation in  the Active Assets program is presently
$80 ($100 for  corporations). Dean Witter  may charge certain  group or  special
accounts  a different fee. Dean Witter reserves  the right to change the fee for
participation in the  Active Assets  program at any  time. As  described in  the
Appendix to the Prospectus under the section "Purchase of Shares", shares of the
Trusts  may be purchased  by investors maintaining  brokerage accounts with Dean
Witter who  are not  subscribers  to the  Active  Assets program.  In  addition,
certain other Securities Accounts which are not subscribers to the Active Assets
Program  may be  linked to  the Trusts  and the  Active Assets  Insured Account.
Shareholders of the Trusts not subscribing to the Active Assets program will not
be charged the program fee.

    Subject to  the conditions  set forth  herein, a  subscriber to  the  Active
Assets  program  will have  his or  her free  credit cash  balances held  in the
account automatically  invested  daily  in  shares  of  any  of  the  Trusts  or
transmitted  to the  bank for  deposit into  the Active  Assets Insured Account,
depending upon which investment is selected  by the investor, and earn a  return
thereon  pending further investment of such funds in other aspects of the Active
Assets program or utilization  through the Visa  Account. A program  participant
may make additional investments in or change his or her chosen investment at any
time  by following the procedures set forth  in the Appendix under "Purchase and
Redemption of Shares".
                            ------------------------

    THE INFORMATION IN THIS DOCUMENT SHOULD BE READ IN CONJUNCTION WITH THE DEAN
WITTER  CLIENT  AGREEMENT  WHICH  IS  BEING  FURNISHED  TO  ALL  ACTIVE   ASSETS
SUBSCRIBERS  (OR OTHER ACCOUNT AGREEMENT  FOR NON-ACTIVE ASSETS SUBSCRIBERS) AND
WILL BE FURNISHED TO NEW SUBSCRIBERS PRIOR TO THE TIME AN ACTIVE ASSETS ACCOUNT,
OR OTHER SECURITIES ACCOUNT, IS OPENED.  REFERENCE IS MADE TO SUCH MATERIAL  FOR
INFORMATION  WITH RESPECT TO THE ACTIVE ASSETS AND OTHER PROGRAMS, INCLUDING THE
FEES RELATED THERETO. FOR MORE COMPLETE DETAILS ABOUT THE ACTIVE ASSETS  INSURED
ACCOUNT,  INCLUDING  PROCEDURES FOR  TRANSFERRING FROM  ANY  OF THE  TRUSTS, THE
SUBSCRIBER SHOULD CONSULT HIS OR HER DEAN WITTER ACCOUNT EXECUTIVE.

<TABLE>
<S>  <C>                                            <C>                                            <C>
      For information on participation in the Active Assets program and information relating to a
  specific account, call:
     - Anywhere in the United States, Puerto Rico   - In New York City (212) 392-5000
       and the Virgin Islands toll free at (800)
       869-3326
</TABLE>

ACTIVE ASSETS IS A REGISTERED TRADEMARK OF DEAN WITTER REYNOLDS INC.  AUGUST 22,
                                                                            1994
<PAGE>
TRUSTEES AND OFFICERS

ACTIVE ASSETS MONEY TRUST
ACTIVE ASSETS TAX-FREE TRUST
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST

TRUSTEES

Jack F. Bennett
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Dr. John E. Jeuck
Dr. Manuel H. Johnson
Paul Kolton
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
Edward R. Telling

OFFICERS

Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Sheldon Curtis
Vice President, Secretary and
General Counsel

Jonathan R. Page
Vice President

Katherine H. Stromberg
Vice President

Thomas F. Caloia
Treasurer
<PAGE>
                           ACTIVE ASSETS MONEY TRUST

       TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048 - (212) 392-5000

    Active Assets Money Trust (the "Money  Trust" or the "Trust") is a  no-load,
diversified  open-end management investment company the investment objectives of
which are high current income, preservation of capital and liquidity. The  Trust
is  authorized to reimburse Dean Witter  Distributors Inc. for specific expenses
incurred in promoting the distribution of the Trust's shares pursuant to a  Plan
of Distribution pursuant to Rule 12b-1 under the Investment Company Act of 1940,
as  amended (the "Act"). Reimbursement may in no event exceed an amount equal to
payments at the  annual rate of  0.15% of the  average daily net  assets of  the
Trust.

    The  Trust will invest in a diversified portfolio of short-term money market
instruments  consisting  primarily  of  United  States  Government   securities,
obligations  of U.S.  regulated banks and  savings and  loan associations having
assets of  $1 billion  or more,  certificates of  deposit of  savings banks  and
savings  and loan associations having  total assets of $1  billion or more, high
grade commercial paper, high grade corporate obligations maturing in one year or
less and certificates of deposit of $100,000 or less of U.S. regulated banks and
savings institutions, having  total assets of  less than $1  billion, which  are
fully insured by the FDIC.

    AN  INVESTMENT IN THE  TRUST IS NEITHER  INSURED NOR GUARANTEED  BY THE U.S.
GOVERNMENT. THERE IS  NO ASSURANCE THAT  THE TRUST  WILL BE ABLE  TO MAINTAIN  A
STABLE NET ASSET VALUE OF $1.00 PER SHARE.

    SHARES  OF THE TRUST  ARE NOT DEPOSITS  OR OBLIGATIONS OF,  OR GUARANTEED OR
ENDORSED BY, ANY BANK, AND THE SHARES  ARE NOT FEDERALLY INSURED BY THE  FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.

                               TABLE OF CONTENTS

<TABLE>
<S>                                                 <C>
Highlights/2                                        How Net Asset Value is Determined/A-4
Summary of Trust Expenses/3                         Confirmations/A-5
Financial Highlights/3                              The Trusts and Their Management/A-5
Investment Objectives and Policies/4                Plan of Distribution/A-6
Investment Restrictions/5                           Dividends, Distributions and Taxes/A-6
Financial Statements/6                              General Information/A-9
Report of Independent Accountants/11                Voting Rights/A-9
Purchase and Redemption of Shares/A-1               Custodian/A-10
    Purchase of Shares/A-1                          Shareholder Inquiries/A-10
    Purchase of Shares by Non-Participants in
      Active Assets Program/A-2
    Redemption of Shares/A-3
    Redemption of Shares by Non-Participants in
      Active Assets Program/A-4
</TABLE>

    THIS  PROSPECTUS SETS FORTH CONCISELY THE INFORMATION YOU SHOULD KNOW BEFORE
INVESTING IN THE  TRUST. IT SHOULD  BE READ AND  RETAINED FOR FUTURE  REFERENCE.
ADDITIONAL  INFORMATION  ABOUT  THE  TRUST  IS  CONTAINED  IN  THE  STATEMENT OF
ADDITIONAL INFORMATION, DATED  AUGUST 22, 1994,  WHICH HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION, AND WHICH  IS AVAILABLE AT  NO CHARGE UPON
REQUEST OF THE  TRUST AT  THE ADDRESS  LISTED ABOVE  OR BY  CALLING DEAN  WITTER
INTERCAPITAL   INC.  (THE  "INVESTMENT  MANAGER"  OR  "INTERCAPITAL")  AT  (212)
392-2550. THE  STATEMENT OF  ADDITIONAL INFORMATION  IS INCORPORATED  HEREIN  BY
REFERENCE.

    THE  INFORMATION IN THIS  PROSPECTUS SHOULD BE READ  IN CONJUNCTION WITH THE
INFORMATION APPEARING ELSEWHERE IN THIS DOCUMENT, INCLUDING THE APPENDIX HERETO,
WHICH IS PART OF THIS PROSPECTUS, AND IN THE DEAN WITTER CLIENT AGREEMENT.

THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
     EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES COMMISSION  NOR HAS THE
        SECURITIES AND  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES
             COMMISSION   PASSED  UPON  THE  ACCURACY  OR  ADEQUACY
                 OF  THIS  PROSPECTUS.  ANY  REPRESENTATION  TO
                     THE  CONTRARY  IS A  CRIMINAL OFFENSE.
                           --------------------------

                THE DATE OF THIS PROSPECTUS IS AUGUST 22, 1994.

                           ACTIVE ASSETS MONEY TRUST
<PAGE>
HIGHLIGHTS

<TABLE>
<S>                  <C>
THE                  A  no-load, open-end diversified management investment company investing in money market
TRUST                instruments. The Trust  is authorized  to reimburse  Dean Witter  Distributors Inc.  for
                     specific  expenses incurred in promoting the distribution of the Trust's shares pursuant
                     to a Plan  of Distribution pursuant  to Rule 12b-1  under the Act.  (See page A-6).  The
                     Trust  is organized as an unincorporated business trust under the laws of Massachusetts.
                     (See page A-5).
- ----------------------------------------------------------------------------------------------------------
SHARES               The shares of the Money Trust are  offered to participants in the Active Assets  program
OFFERED              of  Dean Witter  and to non-participants  who wish to  invest directly in  shares of the
                     Trust (See  page A-2).  The primary  components of  the Active  Assets program  are  the
                     Securities  Account, which  is linked  to the Active  Assets Insured  Account, the Money
                     Trust, the Active Assets Tax-Free Trust, the Active Assets California Tax-Free Trust  or
                     the  Active Assets  Government Securities Trust  and to  the Visa Account.  See the Dean
                     Witter Client Agreement for further information.
- ----------------------------------------------------------------------------------------------------------
PURCHASE             Pursuant to the Dean Witter Client Agreement between Dean Witter and the customer,  free
OF SHARES            credit  cash balances will be automatically invested  in shares of the Money Trust daily
                     at their net asset value without any sales charge. Dean Witter Distributors Inc. is  the
                     Distributor  of  shares  of  the  Trust.  Investments  in  shares  are  made  under  the
                     circumstances described  under  "Purchase and  Redemption  of Shares"  (see  page  A-1).
                     Non-participants  in the Active Assets program  should refer to the discussion appearing
                     at page A-2.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           High current income, preservation of capital and liquidity (see page 4). There can be no
OBJECTIVES           assurance that the Trust's objectives can be achieved.
- ----------------------------------------------------------------------------------------------------------
AUTHORIZED           Money market instruments as follows (see page 4):
INVESTMENTS          - United States Government securities;
                     -  Obligations  of  U.S.  regulated  banks   having  assets  of  $1  billion  or   more;
                     - High grade commercial paper;
                     -    High   grade    corporate   obligations   maturing    in   one    year   or   less;
                     - Certificates of deposit of savings banks and savings institutions having assets of  $1
                     billion or more;
                     -  Certificates of  deposit of  $100,000 or  less, of  U.S. regulated  banks and savings
                     institutions, having total assets of  less than $1 billion,  fully insured by the  FDIC;
                     - Repurchase Agreements (see page 4).
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           Dean Witter InterCapital Inc., the Investment Manager of the Trust, and its wholly-owned
MANAGER              subsidiary,  Dean Witter Services Company, Inc., serve in various investment management,
                     advisory, management and  administrative capacities to  eighty-six investment  companies
                     and  other portfolios with assets  of approximately $69.4 billion  at June 30, 1994 (see
                     page A-5).
- ----------------------------------------------------------------------------------------------------------
MANAGEMENT           Monthly fee at an annual rate of 1/2 of  1% of average daily net assets, scaled down  on
FEE                  assets over $500 million (see page A-5).
- ----------------------------------------------------------------------------------------------------------
DIVIDENDS            Automatically reinvested daily in additional shares at net asset value (see page A-6).
- ----------------------------------------------------------------------------------------------------------
REPORTS              Individual  monthly account statements  from Dean Witter on  the Dean Witter Transaction
                     Statement; annual and semi-annual Trust financial statements.
- ----------------------------------------------------------------------------------------------------------
REDEMPTION           For participants  in the  Active  Assets program,  shares of  the  Money Trust  will  be
OF SHARES            redeemed  at net asset value  automatically to satisfy debit  balances in the Securities
                     Account created by  activity therein or  to satisfy  amounts owing in  the Visa  Account
                     resulting  from Visa card  purchases, cash advances  or checks written  against the Visa
                     Account. Non-participants in the  Active Assets program should  refer to the  discussion
                     appearing  at page A-4. It is anticipated that  the net asset value will remain constant
                     at $1.00 per share. Dean Witter has the right to terminate a shareholder's Active Assets
                     service, in  which event  all  Trust shares  held in  a  shareholder's account  will  be
                     involuntarily redeemed. The Trust also reserves the right to reduce the number of shares
                     in  all  accounts if  the  Trustees determine  that this  is  necessary to  maintain the
                     constant $1.00 per share net asset value. See "Purchase and Redemption of Shares"  (page
                     A-1).
- ----------------------------------------------------------------------------------------------------------
RISKS                The  Trust's investments are limited to U.S. Government securities, high grade corporate
                     obligations and obligations of banks and savings and loan associations having assets  of
                     $1  billion  or  more  and  fully insured  Certificates  of  Deposit;  consequently, the
                     portfolio securities of  the Trust are  subject to minimal  risk of loss  of income  and
                     principal.   However,  the  investor  is  directed  to  the  discussion  of  "Repurchase
                     Agreements" (page 4) concerning the risks associated with such portfolio securities  and
                     management techniques.
- ----------------------------------------------------------------------------------------------------------
    THE  SUMMARY INFORMATION  ABOVE SHOULD  BE READ  IN CONJUNCTION  WITH THE  DETAILED INFORMATION APPEARING
ELSEWHERE IN THIS PROSPECTUS, INCLUDING THE APPENDIX HERETO,  IN THE DEAN WITTER CLIENT AGREEMENT AND IN  THE
TRUST'S STATEMENT OF ADDITIONAL INFORMATION, INCLUDING THE APPENDIX THERETO.
</TABLE>

                                       2
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
SUMMARY OF TRUST EXPENSES
- --------------------------------------------------------------------------------

    The  following table illustrates all expenses and fees that a shareholder of
the Trust will incur. The expenses and fees  set forth in the table are for  the
fiscal year ended June 30, 1994.

<TABLE>
<S>                                            <C>
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed on Purchases....  None
Maximum Sales Charge Imposed on Reinvested
 Dividends...................................  None
Deferred Sales Charge........................  None
Redemption Fees..............................  None
Exchange Fee.................................  None
ANNUAL TRUST OPERATING EXPENSES (AS A
 PERCENTAGE OF AVERAGE NET ASSETS)
Management Fees..............................   0.33%
12b-1 Fees...................................   0.10%
Other Expenses...............................   0.08%
                                               ------
Total Trust Operating Expenses...............   0.51%
                                               ------
                                               ------
</TABLE>

<TABLE>
<CAPTION>
EXAMPLE                                                                 1 YEAR   3 YEARS    5 YEARS    10 YEARS
                                                                        ------   --------   --------   ---------
<S>                                                                     <C>      <C>        <C>        <C>
You would pay the following expenses on a $1,000 investment,
 assuming (1) 5% annual return and (2) redemption at the end
 of each time period:.................................................    $5        $16        $29        $64
</TABLE>

    Dean Witter charges an annual Active Assets program participation fee of $80
($100 for corporate participants). Shareholders of the Trust who are not program
participants will not be charged an Active Assets program fee.

    The  above  example should  not be  considered a  representation of  past or
future expenses or performance. Actual expenses  of the Trust may be greater  or
less than those shown.

    The  purpose of this  table is to  assist the investor  in understanding the
various costs and expenses that an investor  in the Trust will bear directly  or
indirectly.  For a  more complete description  of these costs  and expenses, see
pages A-5 and A-6 in the Appendix to this Prospectus.

FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

    The following per share data and  ratios for a share of beneficial  interest
outstanding  throughout each period  have been audited  by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in  conjunction
with  the financial statements  and notes thereto and  the report of independent
accountants which are contained in this Prospectus commencing on page 6.
<TABLE>
<CAPTION>
                                                         FOR THE YEAR ENDED JUNE 30,
                                          ---------------------------------------------------------
                                           1994      1993      1992      1991      1990      1989
                                          -------   -------   -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>       <C>       <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of period..  $ 1.00    $ 1.00    $ 1.00    $ 1.00    $ 1.00    $ 1.00
                                          -------   -------   -------   -------   -------   -------
  Net investment income.................   0.029     0.029     0.045     0.068     0.081     0.083
  Less dividends from net investment
   income...............................  (0.029)   (0.029)   (0.045)   (0.068)   (0.081)   (0.083)
                                          -------   -------   -------   -------   -------   -------
  Net asset value, end of period........  $ 1.00    $ 1.00    $ 1.00    $ 1.00    $ 1.00    $ 1.00
                                          -------   -------   -------   -------   -------   -------
                                          -------   -------   -------   -------   -------   -------
TOTAL INVESTMENT RETURN.................    2.99%     2.95%     4.58%     7.05%     8.43%     8.57%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   millions)............................  $4,144    $3,604    $3,628    $3,688    $3,454    $3,021
  Ratio of expenses to average net
   assets...............................    0.51%     0.51%     0.54%     0.52%     0.50%     0.52%
  Ratio of net investment income to
   average net assets...................    2.95%     2.90%     4.45%     6.80%     8.10%     8.33%

<CAPTION>

                                           1988      1987      1986      1985
                                          -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of period..  $ 1.00    $ 1.00    $ 1.00    $ 1.00
                                          -------   -------   -------   -------
  Net investment income.................   0.066     0.058     0.072     0.094
  Less dividends from net investment
   income...............................  (0.066)   (0.058)   (0.072)   (0.094)
                                          -------   -------   -------   -------
  Net asset value, end of period........  $ 1.00    $ 1.00    $ 1.00    $ 1.00
                                          -------   -------   -------   -------
                                          -------   -------   -------   -------
TOTAL INVESTMENT RETURN.................    6.83%     5.90%     7.51%     9.82%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   millions)............................  $2,519    $2,299    $2,240    $2,082
  Ratio of expenses to average net
   assets...............................    0.54%     0.54%     0.56%     0.60%
  Ratio of net investment income to
   average net assets...................    6.63%     5.78%     7.23%     9.24%
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       3
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
INVESTMENT OBJECTIVES AND POLICIES
- --------------------------------------------------------------------------------

    THE INVESTMENT OBJECTIVES OF THE TRUST ARE HIGH CURRENT INCOME, PRESERVATION
OF CAPITAL  AND  LIQUIDITY. THE  TRUST  SEEKS  TO ACHIEVE  THOSE  OBJECTIVES  BY
INVESTING IN THE FOLLOWING MONEY MARKET INSTRUMENTS:

U.S. GOVERNMENT SECURITIES--

obligations  issued or  guaranteed as  to principal  and interest  by the United
States or its  agencies (such as  the Export-Import Bank  of the United  States,
Federal Housing Administration, and Government National Mortgage Association) or
its  instrumentalities (such as the Federal Home Loan Bank, Federal Intermediate
Credit Banks  and Federal  Land Bank),  including Treasury  bills, notes,  bonds
(including zero coupon bonds) and coupons;

BANK OBLIGATIONS--

obligations  (including certificates  of deposit, bankers'  acceptances and bank
notes) of banks subject  to regulation by the  U.S. Government and having  total
assets  of $1,000,000,000 or more, and  instruments secured by such obligations,
including obligations  of foreign  branches of  domestic banks  (because of  its
relationship  to  the  Active  Assets  program,  the  Trust  will  not  purchase
securities of Bank One, Columbus, N.A. or its affiliates and will not deal  with
such  Bank  or  its  affiliates as  a  principal  in the  purchase  and  sale of
securities);

OBLIGATIONS OF SAVINGS INSTITUTIONS--

certificates of  deposit of  savings banks  and savings  and loan  associations,
having total assets of $1,000,000,000 or more;

FULLY INSURED CERTIFICATES OF DEPOSIT--

certificates  of deposit of banks and  savings institutions, having total assets
of less  than $1,000,000,000,  if  the principal  amount  of the  obligation  is
insured by the FDIC, limited to $100,000 principal amount per certificate and to
10%  or less  of the  Trust's total  assets in  all such  obligations or  in all
illiquid assets, in the aggregate;

COMMERCIAL PAPER--

commercial paper  rated within  the  two highest  grades  by Standard  &  Poor's
Corporation  ("S&P") or  the highest grade  by Moody's  Investors Service, Inc.,
("Moody's") or, if  not rated, issued  by a company  having an outstanding  debt
issue rated at least AA by S&P or Aa by Moody's;

CORPORATE OBLIGATIONS--

corporate  obligations, rated at least A by S&P or Moody's, maturing in one year
or less.

    See  the  Appendix  to  the  Statement  of  Additional  Information  for  an
explanation of S&P and Moody's ratings.

REPURCHASE AGREEMENTS--

    The  Trust may enter  into repurchase agreements,  which may be  viewed as a
type  of  secured  lending  by  the  Trust,  and  which  typically  involve  the
acquisition by the Trust of debt securities from a selling financial institution
such  as a  bank, savings and  loan association or  broker-dealer. The agreement
provides that  the  Trust  will sell  back  to  the institution,  and  that  the
institution  will  repurchase,  the  underlying  security  ("collateral")  at  a
specified price  and at  a  fixed time  in the  future.  The Trust  will  accrue
interest  from the institution until  the time when the  repurchase is to occur.
Although such  date  is deemed  by  the  Trust to  be  the maturity  date  of  a
repurchase  agreement,  the  maturities  of  securities  subject  to  repurchase
agreements are not subject to any  limits and may exceed thirteen months.  While
repurchase   agreements  involve  certain  risks   not  associated  with  direct
investments in  debt  securities,  the  Trust  follows  procedures  designed  to
minimize  such risks. These procedures include effecting repurchase transactions
only with large,  well-capitalized and  well-established financial  institutions
and specifying the required value of the collateral underlying the agreement.

    The  investment  objectives and  policies stated  above  may not  be changed
without shareholder approval. There is no assurance that the Trust's  objectives
will be achieved.

PORTFOLIO MANAGEMENT--

    Although  the  Trust  will  generally not  seek  profits  through short-term
trading, it may dispose of any portfolio  security prior to its maturity if,  on
the basis of a revised credit evaluation of the issuer or other circumstances or
considerations, it believes such disposition advisable.

                                       4
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
    The  Trust is expected  to have a  high portfolio turnover  due to the short
maturities of securities  purchased, but this  should not affect  income or  net
asset value as brokerage commissions are not normally charged on the purchase or
sale of money market instruments.

    The  Trust will  attempt to balance  its objectives of  high current income,
capital preservation  and  liquidity  by  investing  in  securities  of  varying
maturities  and risks.  The Trust will  not, however, invest  in securities that
mature in more than one year from the date of purchase.

    VARIABLE RATE  AND  FLOATING  RATE  OBLIGATIONS. Certain  of  the  types  of
investments  described above may be variable  rate or floating rate obligations.
The interest rates payable on variable rate or floating rate obligations are not
fixed and may fluctuate  based upon changes in  market rates. The interest  rate
payable  on a variable  rate obligation may be  adjusted either at predesignated
periodic intervals and on a floating rate obligation whenever there is a  change
in the market rate of interest on which the interest rate payable is based.

    BROKERAGE ALLOCATION.  Brokerage commissions are not normally charged on the
purchase  or sale of money market instruments, but such transactions may involve
transaction costs in the form of spreads between bid and asked prices.  Although
the  Trust is expected to  have a high portfolio turnover  rate due to the short
maturities of its  portfolio securities,  the Trust's  income or  the net  asset
value  of its  shares should  not be  affected as  brokers' commissions  are not
normally  incurred.  Pursuant  to  an  order  of  the  Securities  and  Exchange
Commission,  the Trust may effect principal transactions in certain money market
instruments with  Dean  Witter.  In  addition, the  Trust  may  incur  brokerage
commissions on transactions conducted through Dean Witter.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    The  investment restrictions  listed below  are among  the restrictions that
have been  adopted  by the  Trust  as fundamental  policies.  Under the  Act,  a
fundamental  policy may  not be changed  without the  vote of a  majority of the
outstanding voting securities of the Trust, as defined in the Act.

    These restrictions provide that the Trust may not:

    1.  Borrow  money, except from  banks for temporary  or emergency  purposes,
including  the meeting of redemption requests  which might otherwise require the
untimely disposition of securities.  Borrowing in the  aggregate may not  exceed
20%, and borrowing for purposes other than meeting redemptions may not exceed 5%
of  the value of the Trust's total  assets (including the amount borrowed), less
liabilities (not including  the amount borrowed)  at the time  the borrowing  is
made;

    2.   Purchase securities of any issuer, except for securities issued by U.S.
Government  agencies  or  instrumentalities,  having  a  record,  together  with
predecessors,  of less than  three years' continuous  operation, if, immediately
after such purchase, more than 5% of the value of the Trust's total assets would
be invested in such securities;

    3.  Purchase any securities, other than obligations of the U.S.  Government,
or  its agencies or instrumentalities, if, immediately after such purchase, more
than 5% of the value of the Trust's total assets would be invested in securities
of any one issuer, or more than 10% of the outstanding securities of one  issuer
would  be owned  by the Trust  (for this  purpose all indebtedness  of an issuer
shall be deemed a single class of security); and

    4.  Purchase any securities, other than obligations of banks or of the  U.S.
Government,  or its  agencies or  instrumentalities, if,  immediately after such
purchase, more  than 25%  of the  value of  the Trust's  total assets  would  be
invested in the securities of issuers in the same industry; however, there is no
limitation  as to  investments in bank  obligations or in  obligations issued or
guaranteed by the Federal Government or its agencies or instrumentalities.

    If a percentage restriction is adhered to at the time of investment, a later
increase or  decrease  in  percentage  resulting from  a  change  in  values  of
portfolio  securities or amount of total or  net assets will not be considered a
violation of any of the foregoing restrictions.

                                       5
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                       <C>
ASSETS:
Investments in securities, at value
 (amortized cost $4,144,227,193) (Note
 1).....................................  $ 4,144,227,193
Interest receivable.....................        1,407,703
Prepaid expenses........................          415,785
                                          ---------------
      TOTAL ASSETS......................    4,146,050,681
                                          ---------------
LIABILITIES:
Payable for:
  Shares of beneficial interest
   repurchased..........................            4,116
  Investment management fee (Note 2)....        1,130,286
  Plan of distribution fee (Note 3).....          345,265
Accrued expenses and other payables
 (Note 4)...............................          497,827
                                          ---------------
      TOTAL LIABILITIES.................        1,977,494
                                          ---------------
NET ASSETS:
Paid-in-capital.........................    4,144,067,961
Accumulated undistributed net investment
 income.................................            5,226
                                          ---------------
      NET ASSETS........................  $ 4,144,073,187
                                          ---------------
                                          ---------------
NET ASSET VALUE PER SHARE, 4,144,067,961            $1.00
 shares outstanding (unlimited shares     ---------------
 authorized of $.01 par value)..........  ---------------
</TABLE>

   STATEMENT OF OPERATIONS
  FOR THE YEAR ENDED JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                       <C>
INVESTMENT INCOME:
INTEREST INCOME.........................  $ 135,416,925
                                          --------------
EXPENSES
  Investment management fee (Note 2)....     13,025,495
  Plan of distribution fee (Note 3).....      3,816,058
  Transfer agent fees and expenses......      2,354,692
  Registration fees.....................        345,623
  Shareholder reports and notices.......        247,377
  Custodian fees........................        129,013
  Professional fees.....................         47,633
  Trustees' fees and expenses (Note
   4)...................................         32,025
  Other.................................         39,273
                                          --------------
      TOTAL EXPENSES....................     20,037,189
                                          --------------
          NET INVESTMENT INCOME.........    115,379,736
NET REALIZED GAIN ON INVESTMENTS
  (Note 1)..............................         62,706
                                          --------------
          NET INCREASE IN NET ASSETS
           RESULTING FROM OPERATIONS....  $ 115,442,442
                                          --------------
                                          --------------
</TABLE>

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                              FOR THE           FOR THE
                                            YEAR ENDED        YEAR ENDED
INCREASE (DECREASE) IN NET ASSETS:         JUNE 30, 1994     JUNE 30, 1993
                                          ---------------   ---------------
<S>                                       <C>               <C>
  Operations:
    Net investment income...............  $   115,379,736   $   108,430,954
    Net realized gain on investments....           62,706               -0-
                                          ---------------   ---------------
      Net increase in net assets
      resulting from operations.........      115,442,442       108,430,954
  Dividends and distributions to
   shareholders from:
    Net investment income...............     (115,376,388)     (108,432,950)
    Net realized gain on investments....          (62,706)              -0-
                                          ---------------   ---------------
                                             (115,439,094)     (108,432,950)
                                          ---------------   ---------------
  Net increase (decrease) from
   transactions in shares of beneficial
   interest (Note 5)....................      539,762,623       (23,997,368)
                                          ---------------   ---------------
        Total increase (decrease).......      539,765,971       (23,999,364)
NET ASSETS:
  Beginning of period...................    3,604,307,216     3,628,306,580
                                          ---------------   ---------------
  END OF PERIOD (including undistributed
   net investment income of $5,226 and
   $1,878, respectively)................  $ 4,144,073,187   $ 3,604,307,216
                                          ---------------   ---------------
                                          ---------------   ---------------
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       6
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

1.   ORGANIZATION  AND  ACCOUNTING  POLICIES--Active  Assets  Money  Trust  (the
"Trust") is registered under the Investment Company Act of 1940, as amended (the
"Act"),  as  a  diversified,  open-end  management  investment  company.  It was
organized as a  Massachusetts business  trust on  March 30,  1981 and  commenced
operations on July 7, 1981.

   The following is a summary of significant accounting policies:

   A.   VALUATION OF  INVESTMENTS--Portfolio securities are  valued at amortized
   cost, which approximates market value.

   B.  ACCOUNTING  FOR INVESTMENTS--Security transactions  are accounted for  on
   the  trade date (date the order to buy or sell is executed). In computing net
   investment  income,  the  Trust  amortizes  any  premiums  and  discounts  on
   securities  owned.  Realized gains  and losses  on security  transactions are
   determined on the identified cost method.

   C.  FEDERAL INCOME TAX  STATUS--It is the Trust's  policy to comply with  the
   requirements  of the Internal Revenue Code applicable to regulated investment
   companies and to distribute  all of its taxable  income to its  shareholders.
   Accordingly, no federal income tax provision is required.

   D.   DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS--Dividends and distributions
   to shareholders are  recorded by the  Trust as  of the close  of the  Trust's
   business day.

   E.   REPURCHASE AGREEMENTS--The Trust's  custodian takes possession on behalf
   of the  Trust  of  the  collateral  pledged  for  investments  in  repurchase
   agreements.  It is the policy of the Trust to value the underlying collateral
   daily on  a  mark-to-market basis  to  determine that  the  value,  including
   accrued  interest, is at least equal to the repurchase price. In the event of
   default of the obligator to repurchase, the Trust has the right to  liquidate
   the collateral and apply the proceeds in satisfaction of the obligation.

2.    INVESTMENT  MANAGEMENT  AGREEMENT--Pursuant  to  an  Investment Management
Agreement with Dean  Witter InterCapital  Inc. (the  "Investment Manager"),  the
Trust pays its Investment Manager a management fee, calculated daily and payable
monthly,  by applying the following annual rates  to the net assets of the Trust
determined as of the close of the Trust's business day: 0.50% of the portion  of
the  daily net assets not  exceeding $500 million; 0.425%  of the portion of the
daily net assets exceeding $500 million  but not exceeding $750 million;  0.375%
of  the portion of the daily net assets exceeding $750 million but not exceeding
$1 billion; 0.35% of the  portion of the daily  net assets exceeding $1  billion
but  not exceeding $1.5 billion;  0.325% of the portion  of the daily net assets
exceeding $1.5 billion but not exceeding $2 billion; 0.30% of the portion of the
daily net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275%  of
the  portion of the daily net assets exceeding $2.5 billion but not exceeding $3
billion; and 0.25% of the portion of the daily net assets exceeding $3 billion.

    Under the  terms of  the  Agreement, in  addition  to managing  the  Trust's
investments,  the Investment Manager maintains certain  of the Trust's books and
records  and  furnishes  office  space  and  facilities,  equipment,   clerical,
bookkeeping  and certain legal services, and pays the salaries of all personnel,
including officers of the Trust who are employees of the Investment Manager. The
Investment Manager also bears the cost of telephone services, heat, light, power
and other utilities provided to the Trust.

3.   PLAN  OF DISTRIBUTION--Shares  of  beneficial  interest of  the  Trust  are
distributed  by Dean Witter Distributors  Inc. (the "Distributor"), an affiliate
of the Investment  Manager. The Trust  has entered into  a Plan of  Distribution
(the "Plan"), pursuant to Rule 12b-1 under the Act, with the Distributor whereby
the  Distributor finances certain activities in connection with the distribution
of the Trust's shares.

                                       7
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
NOTES TO FINANCIAL STATEMENTS  (CONTINUED)
- --------------------------------------------------------------------------------

    Under the Plan,  the Distributor bears  the expense of  all promotional  and
distribution related activities on behalf of the Trust, except for expenses that
the   Trustees  determine  to  reimburse,  as  described  below.  The  following
activities and services may be provided  by the Distributor under the Plan:  (1)
compensation   to   sales   representatives  of   the   Distributor   and  other
broker-dealers; (2) sales incentives and bonuses to sales representatives and to
marketing personnel in connection with  promoting sales of shares; (3)  expenses
incurred  in  connection  with  promoting sales  of  shares;  (4)  preparing and
distributing sales  literature; and  (5) providing  advertising and  promotional
activities, including direct mail solicitation and television, radio, newspaper,
magazine and other media advertisements.

    The Trust is authorized to reimburse specific expenses incurred in promoting
the distribution of the Trust's shares. The amount of each monthly reimbursement
payment  may in  no event  exceed an amount  equal to  a payment  at the average
annual rate of 0.15% of the Trust's  average daily net assets during the  month.
For  the  year ended  June 30,  1994,  the distribution  fee established  by the
Trustees and accrued was at the average annual rate of 0.10%.

4.    SECURITY  TRANSACTIONS  AND  TRANSACTIONS  WITH  AFFILIATES--The  cost  of
purchases and the proceeds from sales/maturities of portfolio securities for the
year  ended  June  30,  1994  aggregated  $16,379,474,682  and  $15,967,631,171,
respectively.

    On April 1, 1991, the Trust established an unfunded noncontributory  defined
benefit  pension plan  covering all independent  Trustees of the  Trust who will
have served as an  independent Trustee for  at least five years  at the time  of
retirement.  Benefits  under  this  Plan  are  based  on  years  of  service and
compensation during the last five years  of service. Aggregate pension cost  for
the  year ended June  30, 1994, included  in Trustees' fees  and expenses in the
Statement of Operations, amounted to $10,198. At June 30, 1994, the Trust had an
accrued pension liability of  $43,096 which is included  in accrued expenses  in
the Statement of Assets and Liabilities.

    Dean  Witter Trust Company,  an affiliate of the  Investment Manager and the
Distributor, is the  Trust's transfer  agent. At June  30, 1994,  the Trust  had
transfer agent fees and expenses payable of approximately $215,000.

5.    SHARES  OF  BENEFICIAL  INTEREST--Transactions  in  shares  of  beneficial
interest, at $1.00 per share, were as follows:

<TABLE>
<CAPTION>
                                            FOR THE YEAR        FOR THE YEAR
                                           ENDED JUNE 30,      ENDED JUNE 30,
                                                1994                1993
                                          -----------------   -----------------
<S>                                       <C>                 <C>
Shares sold.............................     18,356,737,820      15,714,334,105
Shares issued in reinvestment of
 dividends..............................        115,190,871         108,252,232
                                          -----------------   -----------------
                                             18,471,928,691      15,822,586,337
Shares repurchased......................    (17,932,166,068)    (15,846,583,705)
                                          -----------------   -----------------
Net increase (decrease).................        539,762,623         (23,997,368)
                                          -----------------   -----------------
                                          -----------------   -----------------
</TABLE>

6.  SELECTED PER SHARE DATA AND RATIOS--See the "Financial Highlights" table  on
page 3 of this prospectus.

                                       8
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL                                               ANNUALIZED
 AMOUNT                                                   YIELD
   (IN                                                  ON DATE OF
THOUSANDS)       DESCRIPTION AND MATURITY DATE           PURCHASE           VALUE
- ---------   ----------------------------------------  --------------   ---------------
<C>         <S>                                       <C>              <C>
SHORT-TERM BANK NOTES (4.8%)
$ 30,000    FCC National Bank 7/11/94...............      3.30%        $    30,000,000
 170,000    Bank of New York 8/23/94 to 9/12/94.....   4.44 to 4.51        170,000,000
                                                                       ---------------
            TOTAL SHORT-TERM BANK NOTES (AMORTIZED COST
             $200,000,000)..........................................       200,000,000
                                                                       ---------------
BANKERS' ACCEPTANCES (1.5%)
COMMERCIAL BANKS
  10,000    Bank of America NT & SA 7/27/94.........       4.22              9,969,811
  12,000    Mellon Bank, N.A. 9/2/94................       4.87             11,899,200
  40,000    Republic National Bank, N.Y. 10/3/94....       4.65             39,521,645
                                                                       ---------------
            TOTAL BANKERS' ACCEPTANCES (AMORTIZED COST
             $61,390,656)...........................................        61,390,656
                                                                       ---------------
COMMERCIAL PAPER (78.9%)
AUTOMOTIVE: FINANCE (4.6%)
 191,200    Ford Motor Credit Co. 7/7/94 to
             10/11/94...............................   4.19 to 4.57        190,654,979
                                                                       ---------------
BANKS: COMMERCIAL (13.7%)
  75,000    ABN AMRO N.A. Fin., Inc. 8/03/94 to
             8/08/94................................   4.14 to 4.35         74,695,681
  50,000    Barclays U.S. Funding Corp. 8/04/94.....       4.44             49,791,750
 140,100    Canadian Imperial Holdings Inc. 7/22/94
             to 9/15/94.............................   3.81 to 4.46        139,330,834
  73,850    CommerzBank US Finance Inc. 8/12/94 to
             9/06/94................................   3.53 to 3.57         73,496,079
 111,500    National Westminster Bancorp Inc.
             8/10/94 to 9/08/94.....................   4.38 to 4.51        110,862,531
  30,000    Societe Generale N.A. Inc. 8/24/94......       4.55             29,797,500
  91,500    Toronto-Dominion Holdings (USA) Inc.
             7/01/94 to 12/30/94....................   3.88 to 4.97         90,656,309
                                                                       ---------------
                                                                           568,630,684
                                                                       ---------------

<CAPTION>
PRINCIPAL                                               ANNUALIZED
 AMOUNT                                                   YIELD
   (IN                                                  ON DATE OF
THOUSANDS)       DESCRIPTION AND MATURITY DATE           PURCHASE           VALUE
- ---------   ----------------------------------------  --------------   ---------------
<C>         <S>                                       <C>              <C>

BANK HOLDING COMPANIES (20.1%)
$ 40,000    BankAmerica Corp. 7/12/94 to 8/16/94....  3.28 to 3.69%    $    39,905,847
 123,000    Bankers Trust N.Y. Corp. 7/20/94 to
             9/02/94................................   3.29 to 4.07        122,600,772
  94,200    Chase Manhattan Corporation 8/18/94 to
             9/21/94................................   4.31 to 4.73         93,514,697
  60,000    Chemical Banking Corporation 9/19/94 to
             9/23/94................................       4.49             59,393,200
  21,800    Citicorp 7/14/94........................       3.95             21,769,298
  40,000    J.P. Morgan & Company Inc. 8/22/94 to
             9/27/94................................   4.00 to 4.61         39,663,244
 199,500    NationsBank Corp. 7/12/94 to 9/07/94....   4.37 to 4.61        198,560,207
  45,000    Norwest Corporation 7/20/94.............       4.41             44,895,975
 125,000    PNC Funding Corporation 7/19/94 to
             8/09/94................................   4.40 to 4.44        124,515,400
  50,000    Republic New York Corporation 9/21/94...       4.52             49,490,917
  21,500    SBC Finance (Delaware) Inc. 8/24/94.....       4.51             21,355,520
  17,000    U.S. Bancorp 8/11/94....................       4.38             16,915,779
                                                                       ---------------
                                                                           832,580,856
                                                                       ---------------
BROKERAGE (4.4%)
 109,200    Goldman Sachs Group L.P. 7/11/94 to
             9/08/94................................   3.92 to 4.47        108,793,506
  75,000    Morgan Stanley Group Inc. 7/05/94 to
             7/08/94................................       4.27             74,948,767
                                                                       ---------------
                                                                           183,742,273
                                                                       ---------------
EQUIPMENT: FINANCE (1.7%)
  71,200    John Deere Capital Corp. 8/03/94 to
             1/31/95................................   4.42 to 5.17         70,522,229
                                                                       ---------------
</TABLE>

                                       9
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
   
<TABLE>
<CAPTION>
PRINCIPAL                                               ANNUALIZED
 AMOUNT                                                   YIELD
   (IN                                                  ON DATE OF
THOUSANDS)       DESCRIPTION AND MATURITY DATE           PURCHASE           VALUE
- ---------   ----------------------------------------  --------------   ---------------
<C>         <S>                                       <C>              <C>
FINANCE: DIVERSIFIED (23.1%)
$151,250    American Express Credit Corp. 7/19/94 to
             8/22/94................................  4.33 to 4.37%    $   150,598,325
  90,000    Avco Financial Services, Inc. 7/25/94 to
             8/10/94................................   4.30 to 4.39         89,653,600
 165,750    CIT Group Holdings Inc. 7/06/94 to
             10/14/94...............................   4.18 to 4.73        164,578,216
  28,450    Commercial Credit Company 8/05/94.......       4.37             28,329,680
 153,800    General Electric Capital Corp. 7/11/94
             to 3/02/95.............................   3.29 to 5.11        152,063,098
  66,400    Heller Financial Inc. 7/13/94 to
             9/30/94................................   4.37 to 4.80         65,983,882
 165,000    Household Finance Corp. 7/15/94 to
             10/12/94...............................   4.09 to 4.64        164,029,278
 141,100    ITT Financial Corp. 7/15/94 to
             8/26/94................................   4.32 to 4.46        140,276,090
                                                                       ---------------
                                                                           955,512,169
                                                                       ---------------
FOOD AND BEVERAGES (1.7%)
  40,000    Coca-Cola Company 8/19/94 to 9/20/94....   4.45 to 4.60         39,675,472
  30,000    Heinz (HJ) Company 7/01/94..............       4.47             30,000,000
                                                                       ---------------
                                                                            69,675,472
                                                                       ---------------
OFFICE EQUIPMENT (1.4%)
  60,000    Hewlett Packard Company 9/01/94 to
             9/06/94................................       4.15             59,561,400
                                                                       ---------------
RETAIL (4.2%)
 173,850    Sears Roebuck Acceptance Corp. 7/28/94
             to 8/31/94.............................   4.30 to 4.64        172,985,086
                                                                       ---------------
<CAPTION>
PRINCIPAL                                               ANNUALIZED
 AMOUNT                                                   YIELD
   (IN                                                  ON DATE OF
THOUSANDS)       DESCRIPTION AND MATURITY DATE           PURCHASE           VALUE
- ---------   ----------------------------------------  --------------   ---------------
<C>         <S>                                       <C>              <C>

TELEPHONE (3.3%)
$137,800    AT&T Corp. 7/07/94 to 9/16/94...........  4.13 to 4.63%    $   137,147,616
                                                                       ---------------
UTILITIES (0.7%)
  30,000    National Rural Utilities Cooperative
             Finance Corp. 8/29/94..................       4.38             29,786,617
                                                                       ---------------
            TOTAL COMMERCIAL PAPER (AMORTIZED COST
             $3,270,799,381)........................................     3,270,799,381
                                                                       ---------------
VARIABLE COUPON RENEWABLE NOTE* (1.2%)
  50,000    PNC Bank, N.A. (Amortized Cost
             $49,964,533) 4/21/95...................       4.44             49,964,533
                                                                       ---------------
U.S. GOVERNMENT AGENCIES (12.3%)
  21,000    Federal Farm Credit Bank 11/15/94 to
             11/30/94...............................   3.63 to 4.87         20,639,458
 104,000    Federal Home Loan Banks 7/21/94 to
             2/21/95................................   3.35 to 5.06        102,323,131
 390,700    Federal National Mortgage Association
             7/06/94 to 12/30/94....................   3.24 to 5.05        386,392,023
                                                                       ---------------
            TOTAL U.S. GOVERNMENT AGENCIES (AMORTIZED COST
             $509,354,612)..........................................       509,354,612
                                                                       ---------------
U.S. GOVERNMENT OBLIGATIONS (1.3%)
  53,000    U.S. Treasury Bills (Amortized Cost
             $52,718,011) 7/28/94 to 11/17/94.......   3.34 to 3.61         52,718,011
                                                                       ---------------
</TABLE>
    

<TABLE>
<S>                                       <C>       <C>
TOTAL INVESTMENTS (AMORTIZED COST
$4,144,227,193) (A).....................  100.0  %    4,144,227,193
LIABILITIES IN EXCESS OF OTHER ASSETS...   (0.0  )         (154,006)
                                          -------   ---------------
NET ASSETS..............................  100.0  %  $ 4,144,073,187
                                          -------   ---------------
                                          -------   ---------------
<FN>
- -----------------
 * FLOATING RATE SECURITY. RATE SHOWN IS THE RATE IN EFFECT AT JUNE 30, 1994.
(A) COST IS THE SAME FOR FEDERAL INCOME TAX PURPOSES.
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       10
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
ACTIVE ASSETS MONEY TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------

To the Shareholders and Trustees of Active Assets Money Trust

In  our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments,  and the related statements  of operations and  of
changes  in  net assets  and the  financial highlights  (which appear  under the
heading "Financial Highlights" on page 3 of this Prospectus) present fairly,  in
all  material respects, the financial position of Active Assets Money Trust (the
"Trust") at June  30, 1994,  the results  of its  operations for  the year  then
ended,  the changes in  its net assets for  each of the two  years in the period
then ended and the financial highlights for each of the ten years in the  period
then  ended, in conformity with  generally accepted accounting principles. These
financial  statements  and  financial  highlights  (hereafter  referred  to   as
"financial  statements") are the  responsibility of the  Trust's management; our
responsibility is to express an opinion  on these financial statements based  on
our  audits. We conducted our audits of these financial statements in accordance
with generally  accepted  auditing standards  which  require that  we  plan  and
perform  the audit  to obtain reasonable  assurance about  whether the financial
statements are free of material misstatement. An audit includes examining, on  a
test  basis, evidence  supporting the amounts  and disclosures  in the financial
statements, assessing the accounting  principles used and significant  estimates
made by management, and evaluating the overall financial statement presentation.
We  believe that our audits, which  included confirmation of securities owned at
June 30, 1994 by correspondence with  the custodian, provide a reasonable  basis
for the opinion expressed above.

PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York
August 4, 1994

                                       11
                           ACTIVE ASSETS MONEY TRUST
<PAGE>
                          ACTIVE ASSETS TAX-FREE TRUST
       TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048 - (212) 392-5000

    Active  Assets Tax-Free  Trust (the  "Tax-Free Trust"  or the  "Trust") is a
no-load, diversified  open-end  management  investment  company.  The  Trust  is
authorized  to  reimburse Dean  Witter Distributors  Inc. for  specific expenses
incurred in promoting the distribution of the Trust's shares pursuant to a  Plan
of Distribution pursuant to Rule 12b-1 under the Investment Company Act of 1940,
as  amended (the "Act"). Reimbursement may in no event exceed an amount equal to
payments at the  annual rate of  0.15% of the  average daily net  assets of  the
Trust.

    The investment objective of the Tax-Free Trust is to provide as high a level
of  daily income exempt from  federal personal income tax  as is consistent with
stability of principal and liquidity. The  Trust seeks to achieve its  objective
by  investing primarily in  high quality, tax-exempt  securities with short-term
maturities including Municipal Bonds,  Municipal Notes and Municipal  Commercial
Paper.

    AN  INVESTMENT IN THE  TRUST IS NEITHER  INSURED NOR GUARANTEED  BY THE U.S.
GOVERNMENT. THERE IS  NO ASSURANCE THAT  THE TRUST  WILL BE ABLE  TO MAINTAIN  A
STABLE NET ASSET VALUE OF $1.00 PER SHARE.

    SHARES  OF THE TRUST  ARE NOT DEPOSITS  OR OBLIGATIONS OF,  OR GUARANTEED OR
ENDORSED BY, ANY BANK, AND THE SHARES  ARE NOT FEDERALLY INSURED BY THE  FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.

                               TABLE OF CONTENTS

<TABLE>
<S>                                                 <C>
Highlights/2                                        How Net Asset Value is Determined/A-4
Summary of Trust Expenses/3                         Confirmations/A-5
Financial Highlights/3                              The Trusts and Their Management/A-5
Investment Objective and Policies/4                 Plan of Distribution/A-6
Investment Restrictions/7                           Dividends, Distributions and Taxes/A-6
Financial Statements/8                              General Information/A-9
Report of Independent Accountants/18                Voting Rights/A-9
Purchase and Redemption of Shares/A-1               Custodian/A-10
    Purchase of Shares/A-1                          Shareholder Inquiries/A-10
    Purchase of Shares by Non-Participants in
     the Active Assets Program/A-2
    Redemption of Shares/A-3
    Redemption of Shares by Non-Participants in
    the Active Assets Program/A-4
</TABLE>

    THIS  PROSPECTUS SETS FORTH CONCISELY THE INFORMATION YOU SHOULD KNOW BEFORE
INVESTING IN THE  TRUST. IT SHOULD  BE READ AND  RETAINED FOR FUTURE  REFERENCE.
ADDITIONAL  INFORMATION  ABOUT  THE  TRUST  IS  CONTAINED  IN  THE  STATEMENT OF
ADDITIONAL INFORMATION, DATED  AUGUST 22, 1994,  WHICH HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION, AND WHICH  IS AVAILABLE AT  NO CHARGE UPON
REQUEST OF THE  TRUST AT  THE ADDRESS  LISTED ABOVE  OR BY  CALLING DEAN  WITTER
INTERCAPITAL   INC.  (THE  "INVESTMENT  MANAGER"  OR  "INTERCAPITAL")  AT  (212)
392-2550. THE  STATEMENT OF  ADDITIONAL INFORMATION  IS INCORPORATED  HEREIN  BY
REFERENCE.

    THE  INFORMATION IN THIS  PROSPECTUS SHOULD BE READ  IN CONJUNCTION WITH THE
INFORMATION APPEARING ELSEWHERE IN THIS DOCUMENT, INCLUDING THE APPENDIX HERETO,
WHICH IS PART OF THIS PROSPECTUS, AND IN THE DEAN WITTER CLIENT AGREEMENT.

THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
    EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECU-
       RITIES  AND EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES COMMIS-
            SION   PASSED    UPON   THE    ACCURACY   OR    ADEQUACY
                 OF  THIS PROSPECTUS. ANY REPRESENTATION TO THE
                           CONTRARY IS A CRIMINAL OFFENSE.
                            ------------------------

                  THE DATE OF THIS PROSPECTUS AUGUST 22, 1994.

                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
HIGHLIGHTS

<TABLE>
<S>                  <C>
THE                  A no-load, open-end diversified management  investment company investing principally  in
TRUST                short-term  securities  exempt  from federal  income  tax.  The Trust  is  authorized to
                     reimburse Dean Witter Distributors Inc. for specific expenses incurred in promoting  the
                     distribution  of the Trust's shares pursuant to  a Plan of Distribution pursuant to Rule
                     12b-1 under the Act (See page A-6). The Trust is organized as an unincorporated business
                     trust under the laws of Massachusetts. (See page A-5).
- ----------------------------------------------------------------------------------------------------------
SHARES               The shares  of the  Tax-Free Trust  are offered  to participants  in the  Active  Assets
OFFERED              program  of Dean Witter and to non-participants who wish to invest directly in shares of
                     the Trust. (See page A-2). The primary  components of the Active Assets program are  the
                     Securities  Account, which is  linked to the  Active Assets Insured  Account, the Active
                     Assets Money Trust, the Tax-Free Trust,  the Active Assets California Tax-Free Trust  or
                     the  Active Assets  Government Securities Trust  and to  the Visa Account.  See the Dean
                     Witter Client Agreement for further information.
- ----------------------------------------------------------------------------------------------------------
PURCHASE             Pursuant to the Dean Witter Client Agreement between Dean Witter and the customer,  free
OF SHARES            credit  cash balances  will be automatically  invested daily  in shares of  the Trust at
                     their current net asset value without any sales charge. Dean Witter Distributors Inc. is
                     the Distributor  of shares  of  the Trust.  Investments in  shares  are made  under  the
                     circumstances  described  under  "Purchase and  Redemption  of Shares"  (see  page A-1).
                     Non-participants in the Active Assets program  should refer to the discussion  appearing
                     at page A-2.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           High  level  of  daily tax-exempt  income  consistent  with stability  of  principal and
OBJECTIVE            liquidity (see page 4). There can be no assurance that the Trust's investment  objective
                     will be achieved.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           A   diversified  portfolio  of  tax-exempt,   fixed-income  securities  with  short-term
POLICY               maturities (see page 4).
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           Dean Witter InterCapital Inc., the Investment Manager of the Trust, and its wholly-owned
MANAGER              subsidiary, Dean Witter Services Company, Inc., serve in various investment  management,
                     advisory,  management and  administrative capacities to  eighty-six investment companies
                     with assets under management of approximately $69.4  billion at June 30, 1994 (see  page
                     A-5).
- ----------------------------------------------------------------------------------------------------------
MANAGEMENT           Monthly  fee at an annual rate of 1/2 of  1% of average daily net assets, scaled down on
FEE                  assets over $500 million (see page A-5).
- ----------------------------------------------------------------------------------------------------------
DIVIDENDS            Automatically reinvested daily in additional shares at net asset value (see page A-6).
- ----------------------------------------------------------------------------------------------------------
REPORTS              Individual monthly account statements  from Dean Witter on  the Dean Witter  Transaction
                     Statement; annual and semi-annual Trust financial statements.
- ----------------------------------------------------------------------------------------------------------
REDEMPTION           For  participants in the Active Assets program, shares  of the Trust will be redeemed at
OF SHARES            net asset  value automatically  to  satisfy debit  balances  in the  Securities  Account
                     created  by activity therein or  to satisfy amounts owing  in the Visa Account resulting
                     from Visa card  purchases, cash  advances or checks  written against  the Visa  Account.
                     Non-participants  in the Active Assets program  should refer to the discussion appearing
                     at page A-4. It is  anticipated that the net asset  value will remain constant at  $1.00
                     per share. Dean Witter has the right to terminate a shareholder's Active Assets service,
                     in  which event all Trust  shares held in a  shareholder's account will be involuntarily
                     redeemed. The  Trust also  reserves the  right to  reduce the  number of  shares in  all
                     accounts if the Trustees determine that this is necessary to maintain the constant $1.00
                     per share net asset value. See "Purchase and Redemption of Shares" (page A-1).
- ----------------------------------------------------------------------------------------------------------
RISKS                The Trust invests principally in high quality, short-term fixed-income securities issued
                     or  guaranteed by state and local governments which  are subject to minimal risk of loss
                     of income and principal. However, the investor is directed to the discussions of  "lease
                     obligations"  (page  5)  and  "When-Issued and  Delayed  Delivery  Securities"  (page 6)
                     concerning  the  risks  associated  with   such  portfolio  securities  and   management
                     techniques.
- ----------------------------------------------------------------------------------------------------------
    THE  SUMMARY INFORMATION  ABOVE SHOULD  BE READ  IN CONJUNCTION  WITH THE  DETAILED INFORMATION APPEARING
ELSEWHERE IN THIS PROSPECTUS, INCLUDING THE APPENDIX HERETO,  IN THE DEAN WITTER CLIENT AGREEMENT AND IN  THE
TRUST'S STATEMENT OF ADDITIONAL INFORMATION, INCLUDING THE APPENDIX THERETO.
</TABLE>

                                       2

                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
SUMMARY OF TRUST EXPENSES
- --------------------------------------------------------------------------------

    The  following table illustrates all expenses and fees that a shareholder of
the Trust will incur. The expenses and fees  set forth in the table are for  the
fiscal year ended June 30, 1994.

<TABLE>
<S>                                       <C>
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed on
 Purchases..............................    None
Maximum Sales Charge Imposed on
 Reinvested Dividends...................  None
Deferred Sales Charge...................  None
Redemption Fees.........................  None
Exchange Fee............................  None
ANNUAL TRUST OPERATING EXPENSES (AS A
 PERCENTAGE OF AVERAGE NET ASSETS)
Management Fees.........................    0.42%
12b-1 Fees..............................    0.10%
Other Expenses..........................    0.04%
                                          -------
Total Trust Operating Expenses..........    0.56%
                                          -------
                                          -------
</TABLE>

<TABLE>
<CAPTION>
                                                                          10
EXAMPLE                                   1 YEAR    3 YEARS   5 YEARS    YEARS
                                          -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>
You would pay the following expenses on
 a $1,000 investment, assuming (1) 5%
 annual return and (2) redemption at the
 end of each time period:...............    $ 6       $18       $31       $70
</TABLE>

    Dean Witter charges an annual Active Assets program participation fee of $80
($100 for corporate participants). Shareholders of the Trust who are not program
participants will not be charged an Active Assets program fee.

    The  above  example should  not be  considered a  representation of  past or
future expenses or performance. Actual expenses  of the Trust may be greater  or
less than those shown.

    The  purpose of this  table is to  assist the investor  in understanding the
various costs and expenses that an investor  in the Trust will bear directly  or
indirectly.  For a  more complete description  of these costs  and expenses, see
pages A-5 and A-6 in the Appendix to this Prospectus.

FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

    The following ratios and per share  data for a share of beneficial  interest
outstanding  throughout each period  have been audited  by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in  conjunction
with  the financial statements  and notes thereto and  the report of independent
accountants which are contained in this Prospectus commencing on page 8.
<TABLE>
<CAPTION>
                                                                     FOR THE YEAR ENDED JUNE 30,
                                          ---------------------------------------------------------------------------------
                                             1994          1993          1992          1991          1990          1989
                                          -----------   -----------   -----------   -----------   -----------   -----------
<S>                                       <C>           <C>           <C>           <C>           <C>           <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period...............................  $      1.00   $      1.00   $      1.00   $      1.00   $      1.00   $      1.00
                                          -----------   -----------   -----------   -----------   -----------   -----------
  Net investment income.................        0.020         0.021         0.033         0.047         0.054         0.056
  Less dividends from net investment
   income...............................       (0.020)       (0.021)       (0.033)       (0.047)       (0.054)       (0.056)
                                          -----------   -----------   -----------   -----------   -----------   -----------
  Net asset value, end of period........  $      1.00   $      1.00   $      1.00   $      1.00   $      1.00   $      1.00
                                          -----------   -----------   -----------   -----------   -----------   -----------
                                          -----------   -----------   -----------   -----------   -----------   -----------
TOTAL INVESTMENT RETURN.................         2.01%         2.15%         3.38%         4.84%         5.57%         5.77%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   thousands)...........................  $ 1,416,301   $ 1,355,019   $ 1,304,136   $ 1,341,515   $ 1,174,460   $ 1,111,861
  Ratio of expenses to average net
   assets...............................         0.56%         0.57%         0.59%         0.60%         0.56%         0.58%
  Ratio of net investment income to
   average net assets...................         1.98%         2.13%         3.30%         4.71%         5.44%         5.66%

<CAPTION>

                                             1988          1987         1986        1985
                                          -----------   -----------   ---------   ---------
<S>                                       <C>           <C>           <C>         <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period...............................  $      1.00   $      1.00   $    1.00   $    1.00
                                          -----------   -----------   ---------   ---------
  Net investment income.................        0.043         0.039       0.046       0.055
  Less dividends from net investment
   income...............................       (0.043)       (0.039)     (0.046)     (0.055)
                                          -----------   -----------   ---------   ---------
  Net asset value, end of period........  $      1.00   $      1.00   $    1.00   $    1.00
                                          -----------   -----------   ---------   ---------
                                          -----------   -----------   ---------   ---------
TOTAL INVESTMENT RETURN.................         4.45%         4.00%       4.75%       5.67%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   thousands)...........................  $ 1,033,901   $ 1,045,440   $ 952,491   $ 640,018
  Ratio of expenses to average net
   assets...............................         0.57%         0.58%       0.62%       0.67%
  Ratio of net investment income to
   average net assets...................         4.35%         3.89%       4.62%       5.43%
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       3
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------

    THE INVESTMENT OBJECTIVE OF THE TRUST IS TO PROVIDE AS HIGH A LEVEL OF DAILY
INCOME EXEMPT FROM FEDERAL PERSONAL INCOME  TAX AS IS CONSISTENT WITH  STABILITY
OF  PRINCIPAL AND  LIQUIDITY. It is  a fundamental  policy of the  Trust that at
least 80% of its  total assets will  be invested in  securities the interest  on
which is exempt from federal personal income tax ("tax-exempt securities"). This
policy and the Trust's investment objective may not be changed without a vote of
a majority of the Trust's outstanding voting securities (as defined in the Act).
There is no assurance that the objective will be achieved.

    The  Trust seeks to achieve its  investment objective by investing primarily
in  high  quality  tax-exempt   securities  with  short-term  maturities.   Such
securities   will  include  Municipal  Bonds,   Municipal  Notes  and  Municipal
Commercial Paper ("Municipal Obligations") with maturities of thirteen months or
less, which are  rated in  one of  the two  highest rating  categories for  debt
obligations   by  at   least  two   nationally  recognized   statistical  rating
organizations ("NRSROs" -- primarily  Moody's Investors Service ("Moody's")  and
Standard  & Poor's Corporation ("S&P")), or one NRSRO if the obligation is rated
by only one NRSRO. Unrated obligations  may be purchased if they are  determined
to be of comparable quality by the Trust's Trustees.

    Municipal  Bonds and Municipal Notes are debt obligations of states, cities,
municipalities and municipal  agencies which generally  have maturities, at  the
time of their issuance, of either one year or more (Bonds) or from six months to
three years (Notes). Municipal Commercial Paper refers to short-term obligations
of municipalities.

    The  Trust may  purchase certain  Municipal Obligations  which have  a final
maturity of more than thirteen months but which are subject to short-term demand
features or tenders prior to final maturity, either determined by the issuer  or
selected  at  the  holder's  option.  The former  are  commonly  referred  to as
"variable rate" obligations (see below)  and the latter as municipal  commercial
paper.  The Trust  may purchase  Municipal Bonds  and Notes  if they  are within
either the short-term or long-term rating  levels set forth above for  Municipal
Obligations.

    See  the  Appendix  to  the  Statement  of  Additional  Information  for  an
explanation of Moody's and S&P ratings.

    Any municipal  obligation  which  depends  on  the  credit  of  the  Federal
Government shall be considered to have a rating in the highest category.

    Up  to 20%  of the Trust's  total assets  may be invested  in securities the
interest on  which is  not exempt  from federal  personal income  tax  ("taxable
securities")  and in  tax-exempt securities  subject to  the federal alternative
minimum tax for individual ("AMT")  (tax-exempt securities which are subject  to
the  AMT will not be included in the  80% total referred to above for investment
in tax-exempt securities).

    Up to 20% of the Trust's total assets may be invested in taxable  securities
of  the type described below. The Trust  may temporarily invest more than 20% in
taxable securities  and  tax-exempt securities  subject  to AMT  to  maintain  a
"defensive"  posture  when, in  the  opinion of  the  Investment Manager,  it is
advisable to do so because of market conditions. The types of taxable securities
in which  the  Trust  may  invest  are  limited  to  the  following  short-term,
fixed-income  securities (maturing in  thirteen months or less  from the time of
purchase): (i)  obligations of  the United  States Government  or its  agencies,
instrumentalities  or  authorities; (ii)  prime  commercial paper  rated  P-1 by
Moody's or A-1 by S&P; (iii) certificates of deposit and banker's acceptances of
domestic banks with assets of $1 billion or more; and (iv) repurchase agreements
with respect to any of the foregoing portfolio securities.

                                       4
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
    The foregoing percentage and rating limita-
tions apply at the time of acquisition of a security based on the last  previous
determination  of  the Trust's  net asset  value. Any  subsequent change  in any
rating by  a rating  service  or change  in  percentages resulting  from  market
fluctuations or amount of total or net assets may not require elimination of any
security from the Trust's portfolio.

    The ratings assigned by NRSROs represent their opinions as to the quality of
the  securities which they undertake to  rate. It should be emphasized, however,
that the ratings are general and not absolute standards of quality. However,  in
accordance  with procedures adopted by the  Trust's Trustees pursuant to federal
securities regulations governing money market funds, the Investment Manager will
perform  a  creditworthiness  analysis  of  such  downgraded  securities,  which
analysis  will be reported to the Trustees  who will, in turn, determine whether
the securities continue to present minimal credit risks to the Trust.

    The two  principal classifications  of  Municipal Obligations  are  "general
obligation"  and "revenue" bonds, notes  or commercial paper. General obligation
bonds, notes  or commercial  paper are  secured by  the issuer's  pledge of  its
faith,  credit  and taxing  power  for the  payment  of principal  and interest.
Issuers of general obligation bonds, notes or commercial paper include a  state,
its  counties, cities, towns and other  governmental units. Revenue bonds, notes
or commercial paper  are payable  from the  revenues derived  from a  particular
facility  or  class  of facilities  or,  in  some cases,  from  specific revenue
sources. Revenue bonds, notes or commercial paper are issued for a wide  variety
of  purposes, including the financing of  electric, gas, water and sewer systems
and  other  public  utilities;  industrial  development  and  pollution  control
facilities;   single  and  multi-family  housing  units;  public  buildings  and
facilities; air and marine ports, transportation facilities such as toll  roads,
bridges and tunnels; and health and educational facilities such as hospitals and
dormitories.  They rely primarily on user fees to pay debt service, although the
principal revenue source is often  supplemented by additional security  features
which  are intended to enhance the creditworthiness of the issuer's obligations.
In some cases, particularly revenue bonds  issued to finance housing and  public
buildings,  a direct or implied "moral obligation" of a governmental unit may be
pledged to the payment of debt service.  In other cases, a special tax or  other
charge may augment user fees.

    Included  within  the revenue  bonds  category are  participations  in lease
obligations or installment purchase  contracts (hereinafter collectively  called
"lease  obligations") of municipalities. State and local agencies or authorities
issue lease obligations to acquire equipment and facilities.

    Lease obligations  may  have  risks not  normally  associated  with  general
obligation   or  other  revenue  bonds.  Leases,  and  installment  purchase  or
conditional sale contracts (which may provide  for title to the leased asset  to
pass  eventually  to the  issuer), have  developed as  a means  for governmental
issuers to acquire  property and  equipment without the  necessity of  complying
with  the constitutional and statutory requirements generally applicable for the
issuance of debt. Certain lease obligations contain "non-appropriation"  clauses
that  provide  that the  governmental issuer  has no  obligation to  make future
payments under  the lease  or contract  unless money  is appropriated  for  such
purpose  by  the appropriate  legislative body  on an  annual or  other periodic
basis.  Consequently,  continued  lease  payments  on  those  lease  obligations
containing  "non-appropriation"  clauses  are  dependent  on  future legislative
actions. If such  legislative actions  do not occur,  the holders  of the  lease
obligation  may  experience  difficulty in  exercising  their  rights, including
disposition of the property.

    In addition, lease obligations represent a relatively new type of  financing
that  has  not yet  developed the  depth of  marketability associated  with more
conventional municipal  obligations, and,  as a  result, certain  of such  lease
obligations  may be considered illiquid securities.  To determine whether or not
the Trust will consider such securities to be

                                       5
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
illiquid (the Trust may not  invest more than ten percent  of its net assets  in
illiquid  securities), the Trustees of the  Trust have established guidelines to
be utilized by the Trust in determining the liquidity of a lease obligation. The
factors to be considered in making  the determination include: 1) the  frequency
of trades and quoted prices for the obligation; 2) the number of dealers willing
to  purchase or sell the security and  the number of other potential purchasers;
3) the willingness of dealers to undertake to make a market in the security; and
4) the nature of the marketplace  trades, including, the time needed to  dispose
of  the security,  the method  of soliciting  offers, and  the mechanics  of the
transfer. All  lease obligations  purchased  by the  Trust  are subject  to  the
creditworthiness standards discussed above for Municipal Obligations.

    The  Trust does not  generally intend to  invest more than  25% of its total
assets in securities of governmental units located in any one state,  territory,
or  possession of the United  States. The Trust may invest  more than 25% of its
total assets in industrial development and pollution control bonds (two kinds of
tax-exempt Municipal Bonds) whether or not  the users of facilities financed  by
such  bonds are in the same industry. In  cases where such users are in the same
industry, there may be additional risk to the Trust in the event of an  economic
downturn in such industry, which may result generally in a lowered need for such
facilities  and a  lowered ability  of such  users to  pay for  the use  of such
facilities.

    The high quality, short-term fixed income
securities in which the Trust  principally invests are issued and/or  guaranteed
by  state  and local  governments  and their  agencies  and authorities  and are
subject to minimal risk of loss of income and principal.

PORTFOLIO MANAGEMENT

    Although the Trust will generally acquire
securities for investment with the intent  of holding them to maturity and  will
not  seek  profits through  short-term  trading, the  Trust  may dispose  of any
security prior to its maturity to meet redemption requests. Securities may  also
be  sold when  the Trust's  Investment Manager  believes such  disposition to be
advisable on the  basis of  a revised  evaluation of  the issuer  or based  upon
relevant  market considerations.  There may  be occasions  when, as  a result of
maturities of portfolio securities or sales of Trust shares, or in order to meet
anticipated redemption requests, the  Trust may hold cash  which is not  earning
income.

    The  average weighted maturity of the portfolio will be 90 days or less. The
relatively short-term nature of the Trust  portfolio is expected to result in  a
lower yield than portfolios comprised of longer-term tax-exempt securities.

    VARIABLE  RATE AND FLOATING RATE OBLIGATIONS.  The interest rates payable on
certain Municipal Bonds  and Municipal  Notes are  not fixed  and may  fluctuate
based  upon  changes in  market rates.  Municipal obligations  of this  type are
called "variable rate" or "floating rate" obligations. The interest rate payable
on a variable rate  obligation is adjusted  at predesignated periodic  intervals
and on a floating rate obligation, whenever there is a change in the market rate
of interest on which the interest rate payable is based.

    WHEN-ISSUED   AND  DELAYED  DELIVERY  SECURITIES.  The  Trust  may  purchase
tax-exempt securities on a when-issued or delayed delivery basis; i.e., delivery
and payment can take place  a month or more after  the date of the  transaction.
These  securities are subject  to market fluctuation and  no interest accrues to
the purchaser prior to settlement. At the time the Trust makes the commitment to
purchase such securities, it will record the transaction and thereafter  reflect
the value, each day, of such security in determining its net asset value.

    BROKERAGE  ALLOCATION.   Brokerage commissions  are not  normally charged on
purchases and sales of short-term  municipal obligations, but such  transactions
may  involve transaction  costs in  the form  of spreads  between bid  and asked
prices. Pursuant to  an order  of the  Securities and  Exchange Commission,  the
Trust may effect principal transactions in

                                       6
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
certain money market instruments with Dean
Witter.  In addition, the Trust may  incur brokerage commissions on transactions
conducted through Dean Witter.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    The investment restrictions  listed below  are among  the restrictions  that
have  been  adopted by  the  Trust as  fundamental  policies. Under  the  Act, a
fundamental policy may  not be changed  without the  vote of a  majority of  the
outstanding  voting securities of the Trust, as defined in the Act. For purposes
of the following limitations: (a) an "issuer" of a security is the entity  whose
assets  and revenues are committed  to the payment of  interest and principal on
that particular security,  provided that  the guarantee  of a  security will  be
considered  a separate  security; (b) a  "taxable security" is  any security the
interest on  which is  subject to  federal income  tax; and  (c) all  percentage
limitations  apply immediately after  a purchase or  initial investment, and any
subsequent  change   in  any   applicable  percentage   resulting  from   market
fluctuations  or amount of total  or net assets does  not require elimination of
any security from the portfolio.

    The Trust may not:

        1.   Invest more  than  5% of  the  value of  its  total assets  in  the
    securities  of any one issuer (other  than obligations issued, or guaranteed
    by, the United States Government, its agencies or instrumentalities);

        2.  Purchase more than 10% of all outstanding taxable debt securities of
    any one issuer;

        3.  Invest more  than 25% of  the value of its  total assets in  taxable
    securities  of  issuers  in  any one  industry  (industrial  development and
    pollution control bonds are grouped into industries based upon the  business
    in which the issuers of such obligations are engaged). This restriction does
    not  apply  to  obligations  issued  or  guaranteed  by  the  United  States
    Government or its agencies  or instrumentalities or  to investments in  bank
    obligations;

        4.   Invest  more than 5%  of the value  of its total  assets in taxable
    securities of issuers having a  record, together with predecessors, of  less
    than  three years of continuous operation.  This restriction shall not apply
    to  any  obligation  of  the  United  States  Government,  its  agencies  or
    instrumentalities; and

        5.  Borrow money, except from banks for temporary or emergency purposes,
    including  the meeting of redemption  requests which might otherwise require
    the untimely disposition of securities.  Borrowing in the aggregate may  not
    exceed  20%, and borrowing  for purposes other  than meeting redemptions may
    not exceed  5%, of  the value  of the  Trust's total  assets (including  the
    amount  borrowed), less liabilities  (not including the  amount borrowed) at
    the time the borrowing is made.

                                       7
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                       <C>
ASSETS:
Investments in securities, at value
 (amortized cost $1,460,506,099) (Note
 1).....................................  $ 1,460,506,099
Cash....................................        4,146,235
Receivable for:
  Interest..............................        7,016,394
  Investments sold......................        5,648,195
Prepaid expenses and other assets.......           72,400
                                          ---------------
      TOTAL ASSETS......................    1,477,389,323
                                          ---------------
LIABILITIES:
Payable for:
  Investments purchased.................       60,302,875
  Shares of beneficial interest
   repurchased..........................            1,574
  Investment management fee (Note 2)....          501,970
  Plan of distribution fee (Note 3).....          119,936
Accrued expenses (Note 4)...............          162,156
                                          ---------------
      TOTAL LIABILITIES.................       61,088,511
                                          ---------------
NET ASSETS:
Paid-in-capital.........................    1,416,370,037
Accumulated net realized loss on
 investments............................          (69,581)
Accumulated undistributed net investment
 income.................................              356
                                          ---------------
      NET ASSETS........................  $ 1,416,300,812
                                          ---------------
                                          ---------------
NET ASSET VALUE PER SHARE, 1,416,370,037            $1.00
 shares outstanding (unlimited shares     ---------------
 authorized of $.01 par value)..........  ---------------
</TABLE>

  STATEMENT OF OPERATIONS
  FOR THE YEAR ENDED JUNE 30, 1994
- ------------------------------------------------

   
<TABLE>
<S>                                     <C>
INVESTMENT INCOME:
 INTEREST INCOME........................ $   37,415,944
                                        ---------------
 EXPENSES
  Investment management fee (Note 2)....      6,138,744
  Plan of distribution fee (Note 3).....      1,444,689
  Transfer agent fees and expenses......        356,186
  Registration fees.....................        126,989
  Custodian fees........................         60,204
  Professional fees.....................         56,354
  Shareholder reports and notices.......         36,736
  Trustees' fees and expenses (Note
   4)...................................         32,099
  Other.................................         20,182
                                        ---------------
      TOTAL EXPENSES....................      8,272,183
                                        ---------------
          NET INVESTMENT INCOME.........     29,143,761
                                        ---------------
NET REALIZED LOSS ON INVESTMENTS
 (Note 1)...............................        (12,019)
                                        ---------------
          NET INCREASE IN NET ASSETS
           RESULTING FROM OPERATIONS.... $   29,131,742
                                        ---------------
                                        ---------------
</TABLE>
    

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                              FOR THE           FOR THE
                                            YEAR ENDED        YEAR ENDED
INCREASE (DECREASE) IN NET ASSETS:         JUNE 30, 1994     JUNE 30, 1993
                                          ---------------   ---------------
<S>                                       <C>               <C>
  Operations:
    Net investment income...............  $    29,143,761   $    29,439,169
    Net realized gain (loss) on
     investments........................          (12,019)           15,900
                                          ---------------   ---------------
      Net increase in net assets
      resulting from operations.........       29,131,742        29,455,069
  Dividends to shareholders from net
   investment income....................      (29,144,673)      (29,438,000)
  Net increase from transactions in
   shares of beneficial interest (Note
   5)...................................       61,295,026        50,865,160
                                          ---------------   ---------------
        Total increase..................       61,282,095        50,882,229
NET ASSETS:
  Beginning of period...................    1,355,018,717     1,304,136,488
                                          ---------------   ---------------
  END OF PERIOD (including undistributed
   net investment income of $356 and
   $1,268, respectively)................  $ 1,416,300,812   $ 1,355,018,717
                                          ---------------   ---------------
                                          ---------------   ---------------
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       8
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1.  ORGANIZATION AND  ACCOUNTING POLICIES -- Active  Assets Tax-Free Trust  (the
"Trust") is registered under the Investment Company Act of 1940, as amended (the
"Act"),  as a diversified, open-end management investment company. The Trust was
organized as a  Massachusetts business  trust on  March 30,  1981 and  commenced
operations on July 7, 1981.

    The following is a summary of significant accounting policies:

    A.  VALUATION OF INVESTMENTS -- Portfolio securities are valued at amortized
    cost, which approximates market value.

    B.  ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on
    the trade date (date the order to buy or sell is executed). In computing net
    investment  income,  the Trust  amortizes  any premiums  and  original issue
    discounts and accrues  interest income daily  on securities owned.  Realized
    gains  and losses on security transactions  are determined on the identified
    cost method.

    C.  FEDERAL INCOME TAX STATUS -- It is the Trust's policy to comply with the
    requirements of the Internal Revenue Code applicable to regulated investment
    companies and to distribute all of its taxable and non-taxable income to its
    shareholders. Accordingly, no federal income tax provision is required.

    D.    DIVIDENDS   AND  DISTRIBUTIONS  TO   SHAREHOLDERS  --  Dividends   and
    distributions  to shareholders are recorded by the  Trust as of the close of
    the Trust's business day.

2.   INVESTMENT MANAGEMENT  AGREEMENT --  Pursuant to  an Investment  Management
Agreement  with Dean  Witter InterCapital  Inc. (the  "Investment Manager"), the
Trust pays its Investment Manager a management fee, calculated daily and payable
monthly, by applying the following annual rates  to the net assets of the  Trust
determined  as of the  close of each business  day: 0.50% of  the portion of the
daily net assets not exceeding $500 million; 0.425% of the portion of the  daily
net  assets exceeding $500 million but not exceeding $750 million; 0.375% of the
portion of the  daily net  assets exceeding $750  million but  not exceeding  $1
billion;  0.35% of the portion of the  daily net assets exceeding $1 billion but
not exceeding  $1.5 billion;  0.325% of  the  portion of  the daily  net  assets
exceeding $1.5 billion but not exceeding $2 billion; 0.30% of the portion of the
daily  net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275% of
the portion of the daily net assets exceeding $2.5 billion but not exceeding  $3
billion; and 0.25% of the portion of the daily net assets exceeding $3 billion.

    Under  the  terms of  the  Agreement, in  addition  to managing  the Trust's
investments, the Investment Manager maintains  certain of the Trust's books  and
records   and  furnishes  office  space  and  facilities,  equipment,  clerical,
bookkeeping and certain legal services, and pays the salaries of all  personnel,
including officers of the Trust who are employees of the Investment Manager. The
Investment Manager also bears the cost of telephone services, heat, light, power
and other utilities provided to the Trust.

3.   PLAN  OF DISTRIBUTION  -- Shares  of beneficial  interest of  the Trust are
distributed by Dean Witter Distributors  Inc. (the "Distributor"), an  affiliate
of  the Investment Manager.  The Trust has  entered into a  Plan of Distribution
(the "Plan"), pursuant to Rule 12b-1 under the Act, with the Distributor whereby
the Distributor finances certain activities in connection with the  distribution
of shares of the Trust.

    Under  the Plan,  the Distributor bears  the expense of  all promotional and
distribution related activities on behalf of the Trust, except for expenses that
the  Trustees  determine  to  reimburse,  as  described  below.  The   following
activities  and services may be provided by  the Distributor under the Plan: (1)
compensation  to   sales   representatives   of  the   Distributor   and   other
broker-dealers; (2) sales incentives and bonuses to sales

                                       9
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
representatives and to marketing personnel in connection with promoting sales of
shares;  (3) expenses incurred in connection with promoting sales of shares; (4)
preparing and distributing sales literature;  and (5) providing advertising  and
promotional  activities,  including  direct  mail  solicitation  and television,
radio, newspaper, magazine and other media advertisements.

    The Trust is authorized to  reimburse the Distributor for specific  expenses
the  Distributor incurs or plans  to incur in promoting  the distribution of the
Trust's shares. The amount of each monthly reimbursement payment may in no event
exceed an amount equal to a payment at  the average annual rate of 0.15% of  the
Trust's  average daily net assets during the  month. For the year ended June 30,
1994, the distribution fee  established by the Trustees  and accrued was at  the
average annual rate of 0.10%.

4.    SECURITY TRANSACTIONS  AND  TRANSACTIONS WITH  AFFILIATES  -- The  cost of
purchases and the proceeds from sales/maturities of portfolio securities for the
year  ended  June  30,   1994  aggregated  $2,636,186,050  and   $2,700,789,933,
respectively.

    On  April 1, 1991, the Trust established an unfunded noncontributory defined
benefit pension plan  covering all independent  Trustees of the  Trust who  will
have  served as an  independent Trustee for at  least five years  at the time of
retirement. Benefits  under  this  plan  are  based  on  years  of  service  and
compensation  during the last five years  of service. Aggregate pension cost for
the year ended June  30, 1994, included  in Trustees' fees  and expenses in  the
Statement of Operations, amounted to $10,198. At June 30, 1994, the Trust had an
accrued  pension liability of  $43,097 which is included  in accrued expenses in
the Statement of Assets and Liabilities.

    Dean Witter Trust Company,  an affiliate of the  Investment Manager and  the
Distributor,  is the  Trust's transfer  agent. At June  30, 1994,  the Trust had
transfer agent fees and expenses payable of approximately $31,000.

5.   SHARES OF  BENEFICIAL  INTEREST --  Transactions  in shares  of  beneficial
interest, at $1.00 per share, were as follows:

<TABLE>
<CAPTION>
                                            FOR THE YEAR       FOR THE YEAR
                                               ENDED              ENDED
                                           JUNE 30, 1994      JUNE 30, 1993
                                          ----------------   ----------------
<S>                                       <C>                <C>
Shares sold.............................     5,847,211,623      5,085,457,781
Shares issued in reinvestment of
 dividends..............................        29,144,673         29,438,000
                                          ----------------   ----------------
                                             5,876,356,296      5,114,895,781
Shares repurchased......................    (5,815,061,270)    (5,064,030,621)
                                          ----------------   ----------------
Net increase............................        61,295,026         50,865,160
                                          ----------------   ----------------
                                          ----------------   ----------------
</TABLE>

6.   FEDERAL INCOME TAX STATUS  -- At June 30, 1994,  the Trust had capital loss
carryovers of approximately $47,000 available through June 30, 2000 which may be
used to  offset future  capital gains  to the  extent provided  by  regulations.
Capital  losses incurred after October 31 within  the taxable year are deemed to
arise on the first day of the  Fund's next taxable year. The Trust incurred  and
will  elect to  defer such  net capital  losses of  approximately $12,000 during
fiscal 1994.

7.  SELECTED RATIOS AND PER SHARE  DATA -- See the "Financial Highlights"  table
on page 3 of this Prospectus.

                                       10
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT
  (IN                                                 CURRENT
THOUSANDS)                                             YIELD          VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
           SHORT-TERM VARIABLE RATE MUNICIPAL
            OBLIGATIONS* (77.0%)
           ARIZONA
$ 3,900    Phoenix, Ser 1994-1, 3.30% due 7/1/94...         3.30% $     3,900,000
           ARKANSAS
 20,000    Crossett, Georgia Pacific Corp Ser 1984,
            2.25% due 7/7/94.......................         2.25      20,000,000
 17,000    Little River County, Georgia Pacific
            Corp Ser 1991 (AMT), 2.925% due
            7/7/94.................................         2.925      17,000,000

           CALIFORNIA
 10,000    Long Beach, Memorial Health Services Ser
            1991, 2.20% due 7/6/94.................         2.20      10,000,000

           COLORADO
 30,000    Arapahoe County, Highway E-470 Ser 1986
            F, 2.90% due 8/31/94...................         2.90      30,000,000

           CONNECTICUT
 10,000    Connecticut, Economic Recovery Ser B,
            2.40% due 7/6/94.......................         2.40      10,000,000

           DISTRICT OF COLUMBIA
 13,800    General Fund Recovery Ser 1991 B-2 &
            B-3, 3.60% due 7/1/94..................         3.60      13,800,000
  8,025    Georgetown University Ser 1988 B, 2.55%
            due 7/6/94.............................         2.55       8,025,000

           FLORIDA
  7,850    Atlantic Beach, Fleet Landing Ser 1989,
            2.25% due 7/7/94.......................         2.25       7,850,000
 23,500    Dade County Industrial Development
            Authority, Dolphins Stadium Ser 1985 B
            & C, 2.80% due 7/5/94..................         2.80      23,500,000
 15,000    Dade County, Water & Sewer System Ser
            1994 (FGIC Insured), 2.20% due
            7/6/94.................................         2.20      15,000,000
  5,205    Gulf Breeze, Local Government Ser 1985 B
            (FGIC Insured), 2.25% due 7/7/94.......         2.25       5,205,000
 10,000    Martin County Industrial Development
            Authority, Indiantown Cogeneration Ser
            1992 B (AMT), 2.30% due 7/6/94.........         2.30      10,000,000
 16,600    Sarasota County Health Facilities
            Authority, Venice Hospital, 3.60% due
            7/1/94.................................         3.60      16,600,000
 21,460    Volusia County Health Facilities
            Authority, Pooled Ser 1985 (FGIC
            Insured), 2.50% due 7/6/94.............         2.50      21,460,000

           GEORGIA
 10,000    Albany-Dougherty County Hospital
            Authority, Phoebe-Putney Memorial
            Hospital Ser 1991 (AMBAC Insured),
            2.45% due 7/6/94.......................         2.45      10,000,000
  9,800    Burke County Development Authority,
            Ogelthorpe Power Corp Vogtle Proj Ser
            1993 A, 2.20% due 7/6/94...............         2.20       9,800,000
 17,441    Georgia Municipal Association, Pool Ser
            1990 COPs (MBIA Insured), 2.25% due
            7/7/94.................................         2.25      17,441,046

           HAWAII
           Hawaii Department of Budget & Finance,
  9,000    Kaiser Permanente Semiannual Tender Ser
            1984 B, 2.58% due 9/1/94...............         2.58       9,000,000
 23,500    Queens Medical Center Ser 1985 B (FGIC
            Insured), 2.60% due 7/6/94.............         2.60      23,500,000

           IDAHO
 20,000    Idaho Health Facilities Authority,
            Pooled Ser 1985, 2.50% due 7/5/94......         2.50      20,000,000
</TABLE>

                                       11
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT
  (IN                                                 CURRENT
THOUSANDS)                                             YIELD          VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
           ILLINOIS
$25,000    Chicago, Tender Notes Ser 1994 A, 2.45%
            due 10/25/94...........................         2.45% $    25,000,000
  8,100    Chicago, O'Hare International Airport
            American Airlines Ser 1983 D, 3.60% due
            7/1/94.................................         3.60       8,100,000
  1,850    Illinois Development Finance Authority,
            Wilton Corp Ser C (AMT), 2.60% due
            7/6/94.................................         2.60       1,850,000
           Illinois Health Facilities Authority,
  5,150    The Carle Foundation Ser 1992 (FGIC
            Insured), 2.40% due 7/6/94.............         2.40       5,150,000
 23,000    Elmhurst Memorial Hospital Ser 1993 B,
            3.50% due 7/1/94.......................         3.50      23,000,000
 15,870    Franciscan Sisters Health Care Corp Ser
            1992, 3.50% due 7/1/94.................         3.50      15,870,000
 11,500    Healthcorp Affiliates Central Dupage
            Hospital Assn, 3.50% due 7/1/94........         3.50      11,500,000
 22,500    Lutheran General Health Care System Ser
            1985 B, 2.75% due 7/1/94...............         2.75      22,500,000
 10,000    Parkside Development Corp Ser 1991,
            2.45% due 7/6/94.......................         2.45      10,000,000
  4,800    Resurrection Health Care System Ser
            1993, 3.00% due 7/1/94.................         3.00       4,800,000
 10,000    Revolving Fund Ser 1985 B, 2.40% due
            7/6/94.................................         2.40      10,000,000

           INDIANA
 12,500    Indiana Hospital Equipment Financing
            Authority, Ser 1985 (MBIA Insured),
            2.90% due 7/6/94.......................         2.90      12,500,000
  6,760    Indianapolis, Resource Recovery Ogden
            Martin System Inc Ser 1987 (AMT), 3.00%
            due 7/1/94.............................         3.00       6,760,000

           KENTUCKY
  7,000    Jamestown, Union Underwear Co, 2.60% due
            7/6/94.................................         2.60       7,000,000
 20,000    Kentucky Pollution Abatement & Water
            Resources Authority, Toyota Motor
            Manufacturers USA Inc Ser 1986 (AMT),
            3.50% due 7/1/94.......................         3.50      20,000,000

           LOUISIANA
           Louisana Offshore Terminal Authority,
  8,800    LOOP Inc Ser 1986, 3.50% due 7/1/94.....         3.50       8,800,000
  8,100    LOOP Inc Ser 1992 A, 2.85% due 7/1/94...         2.85       8,100,000
 24,100    New Orleans Aviation Board, Ser 1993 B
            (MBIA Insured), 2.50% due 7/6/94.......         2.50      24,100,000

           MAINE
  9,500    Biddeford, Maine Energy Recovery Co Ser
            1985, 2.85% due 7/1/94.................         2.85       9,500,000

           MARYLAND
 10,000    Baltimore Industrial Development
            Authority, Cap Acq Ser 1986, 2.65% due
            7/6/94.................................         2.65      10,000,000
  7,850    Maryland Energy Financing
            Administration, Baltimore First Ltd
            Partnership Ser 1991 (AMT), 3.55% due
            7/1/94.................................         3.55       7,850,000
 23,000    Montgomery County, Cons Ser 1992 B BANs,
            2.45% due 7/6/94.......................         2.45      23,000,000
  5,000    Montgomery County Housing Opportunities
            Commission, 1993 Ser B, 2.85% due
            11/1/94................................         2.85       5,000,000

           MASSACHUSETTS
 10,000    Massachusetts Bay Transportation
            Authority, 1984 Ser A, 2.75% due
            9/1/94.................................         2.75      10,000,000
  5,800    Massachusetts, Dedicated Income Tax Ser
            1990 E, 3.10% due 7/1/94...............         3.10       5,800,000
           Massachusetts Health & Educational
            Facilities Authority,
  6,700    Capital Asset Prog Ser B (MBIA Insured),
            3.00% due 7/1/94.......................         3.00       6,700,000
 14,000    Harvard University Ser 1985 I, 2.10% due
            7/7/94.................................         2.10      14,000,000
</TABLE>

                                       12
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT
  (IN                                                 CURRENT
THOUSANDS)                                             YIELD          VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
           MICHIGAN
$ 3,200    Michigan State Hospital Finance
            Authority, Equipment Loan Ser 1989,
            2.25% due 7/6/94.......................         2.25% $     3,200,000
  6,000    University of Michigan, Hospital Ser
            1992 A, 2.85% due 7/1/94...............         2.85       6,000,000

           MINNESOTA
  3,900    Beltrami County, Environmental Northwood
            Panelboard Co Ser 1991, 3.55% due
            7/1/94.................................         3.55       3,900,000
  1,755    Minneapolis Community Development
            Agency, Riverside Pinnacle Apts, 2.50%
            due 7/7/94.............................         2.50       1,755,000
 10,000    University of Minnesota, Ser 1985 F,
            2.40% due 8/1/94.......................         2.40      10,000,000

           MISSISSIPPI
  2,800    Mississippi Hospital Equipment &
            Facilities Authority, Mississippi
            Baptist Medical Center Ser 1990 B,
            3.00% due 7/6/94.......................         3.00       2,800,000

           MISSOURI
 14,000    Missouri Environmental Improvement &
            Energy Resources Authority, Noranda
            Aluminum Inc Ser 1982, 3.00% due
            7/6/94.................................         3.00      14,000,000
           Missouri Health & Educational Facilities
            Authority,
 13,500    Missouri Baptist Medical Center Ser 1990
            B, 2.45% due 8/1/94....................         2.45      13,500,000
 10,000    Sisters of Mercy Health System St Louis
            Inc Ser 1989 A, 2.30% due 7/7/94.......         2.30      10,000,000
  5,300    Sisters of Mercy Health System St Louis
            Inc Ser 1992 B, 2.30% due 7/7/94.......         2.30       5,300,000
  9,800    St Anthony's Medical Center Ser 1989 A,
            2.65% due 7/5/94.......................         2.65       9,800,000

           NEBRASKA
           Nebraska Higher Education Loan Program
            Inc,
 17,785    1985 Ser E (MBIA Insured), 2.25% due
            7/6/94.................................         2.25      17,785,000
  8,600    1986 Ser C (AMT), 2.40% due 7/6/94......         2.40       8,600,000

           NEVADA
 12,000    Clark County, Airport Sys Refg Ser 1993
            A (MBIA Insured), 2.20% due 7/6/94.....         2.20      12,000,000

           NEW HAMPSHIRE
  2,500    New Hampshire Higher Educational &
            Health Facilities Authority, Dartmouth
            Education Loan Corp Ser 1993 (AMT),
            3.75% due 6/1/95.......................         3.75       2,500,000

           NEW JERSEY
 10,000    New Jersey Economic Development
            Authority, Center For Aging Inc--
            Applewood Estates Ser 1989, 2.20% due
            7/7/94.................................         2.20      10,000,000

           NEW YORK
           New York City,
 10,000    Fiscal 1994 Subser A-5 & A-8, 3.60% due
            7/1/94.................................         3.60      10,000,000
  2,000    New York Local Government Assistance
            Corporation, Ser 1994 B, 2.00% due
            7/6/94.................................         2.00       2,000,000
 10,000    New York State Mortgage Agency,
            Homeowner Ser 37-B, 3.10% due
            9/29/94................................         3.10      10,000,000
  7,000    New York State Power Authority, Tender
            Notes, 2.75% due 9/1/94................         2.75       7,000,000
  2,800    Port Authority of New York & New Jersey,
            Ser 2, 3.50% due 7/1/94................         3.50       2,800,000
</TABLE>

                                       13
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT
  (IN                                                 CURRENT
THOUSANDS)                                             YIELD          VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
           NORTH CAROLINA
           North Carolina Medical Care Commission,
$14,200    Duke University Hospital Ser 1985 B,
            2.20% due 7/7/94.......................         2.20% $    14,200,000
 10,785    Duke University Hospital Ser 1985 C,
            2.20% due 7/7/94.......................         2.20      10,785,000
 15,400    Pooled Ser 1985 (MBIA Insured), 2.55%
            due 7/5/94.............................         2.55      15,400,000
  5,000    Pooled Ser 1991 A, 3.60% due 7/1/94.....         3.60       5,000,000
 21,700    Person County Industrial Facilities &
            Pollution Control Financing Authority,
            Carolina Power & Light Co Ser 1992 A,
            2.65% due 7/6/94.......................         2.65      21,700,000

           OKLAHOMA
  4,000    Oklahoma Housing Finance Agency,
            Homeownership Loan 1994 Ser A (AMT),
            3.875% due 5/1/95......................         3.875       4,000,000
 13,970    Oklahoma Water Resources Board, State
            Loan Prog Ser 1994 A, 2.85% due
            9/1/94.................................         2.85      13,970,000

           OREGON
 10,000    Oregon, Veterans' Welfare Ser 73 H,
            2.40% due 7/6/94.......................         2.40      10,000,000

           PENNSYLVANIA
 10,000    Allegheny County Hospital Development
            Authority, Health Education & Research
            Corp Ser 1988 B, 2.40% due 7/6/94......         2.40      10,000,000
           Emmaus General Authority,
 15,000    Local Govt Ser 1989 B Subser B-5, 2.35%
            due 7/6/94.............................         2.35      15,000,000
  6,200    Local Govt Ser 1989 D, 2.25% due
            7/6/94.................................         2.25       6,200,000
 10,500    Pennsylvania Energy Development
            Authority, Clarion Co Piney Creek Ser A
            (AMT), 2.30% due 7/6/94................         2.30      10,500,000
  5,200    University of Pittsburgh, Univ Cap 1989
            Ser A, 2.525% due 7/7/94...............         2.525       5,200,000
  8,400    Washington County Authority, Pooled Ser
            1985 A-1 Subser B, 2.95% due 7/6/94....         2.95       8,400,000

           RHODE ISLAND
           Rhode Island Housing & Mortgage Finance
            Corporation,
  3,900    Homeownership Ser 9 B, 2.40% due
            7/6/94.................................         2.40       3,900,000
  7,500    Homeownership Ser 13, 2.25% due
            7/6/94.................................         2.25       7,500,000

           SOUTH CAROLINA
 12,000    York County, North Carolina Electric
            Membership Corp Pooled Ser 1984 N-3 & 4
            (NRU-CFC Gtd), 3.05% due 9/15/94.......         3.05      12,000,000

           TEXAS
  3,800    Angelina & Neches River Authority, TEEC
            Inc Ser 1984 D, 3.55% due 7/1/94.......         3.55       3,800,000
  9,700    Gulf Coast Industrial Development
            Authority, Amoco Oil Co Ser 1993 (AMT),
            3.10% due 7/1/94.......................         3.10       9,700,000
           Gulf Coast Waste Disposal Authority,
  3,000    Amoco Oil Co Ser 1991 (AMT), 2.95% due
            10/1/94................................         2.95       3,000,000
  3,700    Amoco Oil Co Ser 1992, 2.75% due
            7/1/94.................................         2.75       3,700,000
 15,100    Harris County, Toll Road Unlimited Tax
            Sub Lien Ser 1985 E, 2.25% due
            7/7/94.................................         2.25      15,100,000
  8,000    Harris County Health Facilities
            Development Corporation, St Lukes
            Episcopal Hospital 1992 A, 3.30% due
            7/1/94.................................         3.30       8,000,000
</TABLE>

                                       14
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
PRINCIPAL
 AMOUNT
  (IN                                                 CURRENT
THOUSANDS)                                             YIELD          VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
$13,000    Hockley County Industrial Development
            Corporation, Amoco Oil Co Ser 1985,
            3.15% due 11/1/94......................         3.15% $    13,000,000
  6,400    Houston Health Facilities Development
            Corporation, Methodist Hospital Ser
            1984, 3.30% due 7/1/94.................         3.30       6,400,000

           UTAH
 15,500    Intermountain Power Agency, 1985 Ser E &
            F, 3.00% due 9/15/94...................         3.00      15,500,000
 15,000    Utah Housing Finance Agency, Single
            Family Mortgage 1994 Ser 2 (AMT), 2.75%
            due 7/6/94.............................         2.75      15,000,000

           VIRGINIA
           Richmond Redevelopment & Housing
            Authority,
  7,000    Tobacco Row 1989 Ser B-4 (AMT), 2.75%
            due 7/6/94.............................         2.75       7,000,000
  8,710    Tobacco Row 1989 Ser B-7 (AMT), 2.75%
            due 7/6/94.............................         2.75       8,710,000

           WASHINGTON
  7,000    Washington State Housing Finance
            Commission, Single Family Mortgage Ser
            1994 D (AMT), 3.90% due 6/1/95.........         3.90       7,000,000
  4,500    Washington Student Loan Finance
            Association, Ser 1988 A (AMT), 2.75%
            due 7/7/94.............................         2.75       4,500,000

           WEST VIRGINIA
  4,700    Marion County, Grant Town Cogeneration
            Ser 1990 D (AMT), 2.35% due 7/6/94.....         2.35       4,700,000

           WISCONSIN
 10,000    Wisconsin Health Facilities Authority,
            Franciscan Health Care Inc Ser 1985
            A-1, 2.90% due 7/6/94..................         2.90      10,000,000
                                                                 ---------------
           TOTAL SHORT-TERM VARIABLE RATE MUNICIPAL
            OBLIGATIONS
             (AMORTIZED COST $1,090,766,046).......                1,090,766,046
                                                                 ---------------
<CAPTION>
                                                     YIELD TO
                                                     MATURITY
                                                      ON DATE
                                                        OF
                                                     PURCHASE
                                                     ---------
<C>        <S>                                       <C>         <C>
           TAX-EXEMPT COMMERCIAL PAPER (13.6%)
           CALIFORNIA
  4,000    Long Beach Harbor Department, Ser A
            (AMT), 3.00% due 8/15/94...............         3.00%       4,000,000

           FLORIDA
 14,000    Jacksonville, Ser A, 2.90% due
            8/11/94................................         2.90      14,000,000
  6,500    Jacksonville Electric Authority, 3.30%
            due 10/27/94...........................         3.30       6,500,000
  8,000    Lee County Hospital Board of Directors,
            Lee Memorial Hospital Ser 1992 B, 2.65%
            due 8/19/94............................         2.65       8,000,000

           GEORGIA
  4,000    Burke County Development Authority,
            Oglethorpe Power Corp Ser 1992 A, 3.30%
            due 9/12/94............................         3.30       4,000,000
  9,900    Georgia Municipal Gas Authority, Ser B,
            2.65% due 7/14/94......................         2.65       9,900,000

           LOUISIANA
 10,000    Louisana Offshore Terminal Authority,
            LOOP Inc Ser 1991 A, 3.30% due
            9/13/94................................         3.30      10,000,000
</TABLE>

                                       15
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                     YIELD TO
PRINCIPAL                                            MATURITY
 AMOUNT                                               ON DATE
  (IN                                                   OF
THOUSANDS)                                           PURCHASE         VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
$25,000    St James Parish, Texaco Inc Ser 1988 B,
            2.80% due 8/16/94......................         2.80% $    25,000,000

           NEW HAMPSHIRE
 10,000    New Hampshire Business Finance
            Authority, New England Power Co 1990
            Ser A (AMT), 3.45% due 10/13/94........         3.45      10,000,000

           OHIO
  8,000    Ohio Water Development Authority,
            Duquesne Light Co Ser 1988 (AMT), 3.45%
            due 10/25/94...........................         3.45       8,000,000

           PENNSYLVANIA
           Pennsylvania Economic Development
            Financing Authority,
  6,500    Inter-Power/AhlCon Partners 1992 Ser A
            (AMT), 2.85% due 7/19/94...............         2.85       6,500,000
  8,900    Inter-Power/AhlCon Partners 1992 Ser A
            (AMT), 2.85% due 7/21/94...............         2.85       8,900,000
  8,000    Venango Industrial Development
            Authority, Scrubgrass Ser 1990 B (AMT),
            2.65% due 8/23/94......................         2.65       8,000,000

           TEXAS
 10,000    Brazos River Authority, Texas Utilities
            Electric Co Ser 1994 B (AMT), 3.35% due
            9/15/94................................         3.35      10,000,000
 11,300    Braxos River Harbor Navigation District,
            Dow Chemical Co Ser 1992 (AMT), 2.80%
            due 8/24/94............................         2.80      11,300,000
  6,700    Harris County Health Facilities
            Development Corporation, Sisters of
            Charity of the Incarnate Word, 2.55%
            due 8/17/94............................         2.55       6,700,000
           Lower Colorado River Authority,
  5,000    Ser B, 2.95% due 8/29/94................         2.95       5,000,000
  9,500    Ser C, 3.25% due 9/14/94................         3.25       9,500,000
 10,000    Texas A & M University, Ser B, 2.95% due
            8/26/94................................         2.95      10,000,000

           UTAH
  7,000    Tooele County, Union Pacific Corp Ser A
            (AMT), 2.95% due 10/19/94..............         2.95       7,000,000

           VIRGINIA
  6,380    Norfolk Industrial Development
            Authority, Sentara Hospitals Ser 1990
            A, 3.30% due 10/21/94..................         3.30       6,380,000

           WYOMING
  4,400    Sublette County, Exxon Corp Ser 1987 B
            (AMT), 3.35% due 10/11/94..............         3.35       4,400,000
                                                                 ---------------
           TOTAL TAX-EXEMPT COMMERCIAL PAPER
             (AMORTIZED COST $193,080,000).........                  193,080,000
                                                                 ---------------

           SHORT-TERM MUNICIPAL NOTES (12.5%)
           CALIFORNIA
 23,000    Alameda County, 1993-1994 TRANs, dtd
            7/8/93 3.25% due 7/29/94...............         2.75      23,008,576
           California School Cash Reserve Program
            Authority,
 35,000    1993 Pool Ser A, dtd 7/2/93 3.40% due
            7/5/94.................................         2.90      35,001,860
 20,000    1994 Pool Ser A, dtd 7/5/94 4.50% due
            7/5/95 (a).............................         3.75      20,144,400
 25,000    California Statewide Communities
            Development Authority, 1994 Ser A
            TRANs, dtd 7/6/94 4.50% due 7/17/95
            (a)....................................         2.80      25,211,000
 13,000    Los Angeles County Local Educational
            Agencies, Pooled 1994-95
           Ser A TRANs, dtd 7/7/94 4.50% due
            7/6/95(a)..............................         3.75      13,093,600
</TABLE>

                                       16
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                     YIELD TO
PRINCIPAL                                            MATURITY
 AMOUNT                                               ON DATE
  (IN                                                   OF
THOUSANDS)                                           PURCHASE         VALUE
- --------                                             ---------   ---------------
<C>        <S>                                       <C>         <C>
           CONNECTICUT
$10,000    Connecticut, Special Assessment
            Unemployment Compensation 1993 Ser C
            (FGIC Insured), dtd 9/23/93 3.00% due
            7/1/94.................................         2.80% $    10,000,000

           INDIANA
 25,000    Indiana Bond Bank, Advance Funding
            Notes, Ser 1994 A-2, dtd 1/13/94 3.03%
            due 1/17/95............................         2.75      25,037,225

           IOWA
 25,000    Iowa School Corporations, Warrant
            Certificates Ser A 1994 (Capital
            Guaranty Insured), dtd 6/29/94 4.25%
            due 7/17/95............................         3.60      25,163,392
                                                                 ---------------
           TOTAL SHORT-TERM MUNICIPAL NOTES
             (AMORTIZED COST $176,660,053).........                  176,660,053
                                                                 ---------------
</TABLE>

<TABLE>
<C>        <S>                                       <C>           <C>
           TOTAL INVESTMENTS
             (AMORTIZED COST $1,460,506,099) (B)...       103.1%     1,460,506,099
           LIABILITIES IN EXCESS OF CASH AND OTHER
            ASSETS.................................        (3.1)       (44,205,287)
                                                     -----------   ---------------
           NET ASSETS..............................       100.0%   $ 1,416,300,812
                                                     -----------   ---------------
                                                     -----------   ---------------
<FN>
- ---------------
AMT  - ALTERNATIVE MINIMUM TAX.
BANS - BOND ANTICIPATION NOTES.
COPS - CERTIFICATE OF PARTICIPATION.
TRANS - TAX AND REVENUE ANTICIPATION NOTES.
*  DUE DATE REFLECTS NEXT RATE CHANGE.
 (A) WHEN ISSUED SECURITY.
 (B) COST IS THE SAME FOR FEDERAL INCOME TAX PURPOSES.
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                            1994 FEDERAL TAX NOTICE (UNAUDITED)
During  the year ended June  30, 1994, the Trust  paid to shareholders $0.019898
per share from net investment income.  All of the Trust's dividends were  exempt
interest  dividends,  excludable  from  gross  income  for  Federal  income  tax
purposes.

                                       17
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------

To the Shareholders and Trustees of Active Assets Tax-Free Trust

In our opinion, the accompanying statement of assets and liabilities,  including
the  portfolio of investments,  and the related statements  of operations and of
changes in  net assets  and the  financial highlights  (which appear  under  the
heading  "Financial Highlights" on page 3 of this Prospectus) present fairly, in
all material respects, the  financial position of  Active Assets Tax-Free  Trust
(the  "Trust") at June 30, 1994, the results of its operations for the year then
ended, the changes in  its net assets for  each of the two  years in the  period
then  ended and the financial highlights for each of the ten years in the period
then ended, in conformity with  generally accepted accounting principles.  These
financial   statements  and  financial  highlights  (hereafter  referred  to  as
"financial statements") are  the responsibility of  the Trust's management;  our
responsibility  is to express an opinion  on these financial statements based on
our audits. We conducted our audits of these financial statements in  accordance
with  generally  accepted  auditing standards  which  require that  we  plan and
perform the audit  to obtain  reasonable assurance about  whether the  financial
statements  are free of material misstatement. An audit includes examining, on a
test basis, evidence  supporting the  amounts and disclosures  in the  financial
statements,  assessing the accounting principles  used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audits, which  included confirmation of securities owned  at
June  30,  1994 by  correspondence  with the  custodian  and brokers,  provide a
reasonable basis for the opinion expressed above.

PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York
August 4, 1994

                                       18
                          ACTIVE ASSETS TAX-FREE TRUST
<PAGE>
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST

       TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048 - (212) 392-5000

   
    Active  Assets California Tax-Free Trust (the "California Tax-Free Trust" or
the "Trust") is a no-load,  diversified open-end management investment  company.
The  Trust is authorized to reimburse Dean Witter Distributors Inc. for specific
expenses incurred in promoting the  distribution of the Trust's shares  pursuant
to  a Plan of Distribution  pursuant to Rule 12b-1  under the Investment Company
Act of 1940, as  amended (the "Act").  Reimbursement may in  no event exceed  an
amount  equal to payments at  the annual rate of 0.15%  of the average daily net
assets of the Trust.
    

    The investment objective of the Trust is to provide as high a level of daily
income exempt from federal and California  personal income tax as is  consistent
with  stability  of principal  and  liquidity. The  Trust  seeks to  achieve its
objective  by  investing  primarily  in  high  quality,  California   tax-exempt
securities with short-term maturities including Municipal Bonds, Municipal Notes
and Municipal Commercial Paper.

    AN  INVESTMENT IN THE  TRUST IS NEITHER  INSURED NOR GUARANTEED  BY THE U.S.
GOVERNMENT. THERE IS  NO ASSURANCE THAT  THE TRUST  WILL BE ABLE  TO MAINTAIN  A
STABLE NET ASSET VALUE OF $1.00 PER SHARE.

    SHARES  OF THE TRUST  ARE NOT DEPOSITS  OR OBLIGATIONS OF,  OR GUARANTEED OR
ENDORSED BY, ANY BANK, AND THE SHARES  ARE NOT FEDERALLY INSURED BY THE  FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.

                               TABLE OF CONTENTS

<TABLE>
<S>                                                 <C>
Highlights/2                                        How Net Asset Value is Determined/A-4
Summary of Trust Expenses/3                         Confirmations/A-5
Financial Highlights/3                              The Trusts and Their Management/A-5
Investment Objective and Policies/4                 Plan of Distribution/A-6
Investment Restrictions/9                           Dividends, Distributions and Taxes/A-6
Financial Statements/11                             General Information/A-9
Report of Independent Accountants/16                Voting Rights/A-9
Purchase and Redemption of Shares/A-1               Custodian/A-10
    Purchase of Shares/A-1                          Shareholder Inquiries/A-10
    Purchase of Shares by Non-Participants in
     the Active Assets Program/A-2
    Redemption of Shares/A-3
    Redemption of Shares by Non-Participants in
    the Active Assets Program/A-4
</TABLE>

    THIS  PROSPECTUS SETS FORTH CONCISELY THE INFORMATION YOU SHOULD KNOW BEFORE
INVESTING IN THE  TRUST. IT SHOULD  BE READ AND  RETAINED FOR FUTURE  REFERENCE.
ADDITIONAL  INFORMATION  ABOUT  THE  TRUST  IS  CONTAINED  IN  THE  STATEMENT OF
ADDITIONAL INFORMATION, DATED  AUGUST 22, 1994,  WHICH HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION, AND WHICH  IS AVAILABLE AT  NO CHARGE UPON
REQUEST OF THE TRUST AT THE ADDRESS  LISTED ABOVE OR BY CALLING THE DEAN  WITTER
INTERCAPITAL   INC.  (THE  "INVESTMENT  MANAGER"  OR  "INTERCAPITAL")  AT  (212)
392-2550. THE  STATEMENT OF  ADDITIONAL INFORMATION  IS INCORPORATED  HEREIN  BY
REFERENCE.

    THE  INFORMATION IN THIS  PROSPECTUS SHOULD BE READ  IN CONJUNCTION WITH THE
INFORMATION APPEARING ELSEWHERE IN THIS DOCUMENT, INCLUDING THE APPENDIX HERETO,
WHICH IS PART OF THIS PROSPECTUS, AND IN THE DEAN WITTER CLIENT AGREEMENT.

THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
    EXCHANGE  COMMISSION  OR ANY  STATE  SECURITIES COMMISSION  NOR  HAS THE
       SECURITIES  AND  EXCHANGE  COMMISSION  OR  ANY  STATE   SECURITIES
            COMMISSION  PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
                 PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
                                  IS A CRIMINAL OFFENSE.
                            ------------------------

                THE DATE OF THIS PROSPECTUS IS AUGUST 22, 1994.

                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
HIGHLIGHTS

<TABLE>
<S>                  <C>
THE                  A no-load, open-end diversified management  investment company investing principally  in
TRUST                short-term  securities exempt from federal and California personal income tax. The Trust
                     is authorized to reimburse Dean Witter Distributors Inc. for specific expenses  incurred
                     in  promoting the distribution of the Trust's  shares pursuant to a Plan of Distribution
                     pursuant to Rule  12b-1 under  the Act  (See page  A-6). The  Trust is  organized as  an
                     unincorporated business trust under the laws of Massachusetts. (See page A-5).
- ----------------------------------------------------------------------------------------------------------
SHARES               The shares of the Trust are offered to participants in the Active Assets program of Dean
OFFERED              Witter  and to non-participants who wish to invest directly in shares of the Trust. (See
                     page A-2).  The primary  components of  the  Active Assets  program are  the  Securities
                     Account,  which is linked to the Active  Assets Insured Account, the Active Assets Money
                     Trust, the Active  Assets Tax-Free Trust,  the California Tax-Free  Trust or the  Active
                     Assets  Government Securities Trust and to the  Visa Account. See the Dean Witter Client
                     Agreement for further information.
- ----------------------------------------------------------------------------------------------------------
PURCHASE             Pursuant to the Dean Witter Client Agreement between Dean Witter and the customer,  free
OF SHARES            credit  cash balances  will be automatically  invested daily  in shares of  the Trust at
                     their current net asset value without any sales charge. Dean Witter Distributors Inc. is
                     the Distributor  of shares  of  the Trust.  Investments in  shares  are made  under  the
                     circumstances  described  under  "Purchase and  Redemption  of Shares"  (see  page A-1).
                     Non-participants in the Active Assets program  should refer to the discussion  appearing
                     at page A-2.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           High  level of daily California tax-exempt income consistent with stability of principal
OBJECTIVE            and liquidity  (see page  4). There  can be  no assurance  that the  Trust's  investment
                     objective will be achieved.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           A   diversified  portfolio  of  tax-exempt,   fixed-income  securities  with  short-term
POLICY               maturities (see page 4).
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           Dean Witter InterCapital Inc., the Investment Manager of the Trust, and its wholly-owned
MANAGER              subsidiary, Dean Witter Services Company, Inc., serve in various investment  management,
                     advisory,  management and  administrative capacities to  eighty-six investment companies
                     with assets under management of approximately $69.4  billion at June 30, 1994 (see  page
                     A-5).
- ----------------------------------------------------------------------------------------------------------
MANAGEMENT           Monthly  fee at an annual rate of 1/2 of  1% of average daily net assets, scaled down on
FEE                  assets over $500 million (see page A-5).
- ----------------------------------------------------------------------------------------------------------
DIVIDENDS            Automatically reinvested daily in additional shares at net asset value (see page A-6).
- ----------------------------------------------------------------------------------------------------------
REPORTS              Individual monthly account statements  from Dean Witter on  the Dean Witter  Transaction
                     Statement; annual and semi-annual Trust financial statements.
- ----------------------------------------------------------------------------------------------------------
REDEMPTION           For  participants in the Active Assets program, shares  of the Trust will be redeemed at
OF SHARES            net asset  value automatically  to  satisfy debit  balances  in the  Securities  Account
                     created  by activity therein or  to satisfy amounts owing  in the Visa Account resulting
                     from Visa card  purchases, cash  advances or checks  written against  the Visa  Account.
                     Non-participants  in the Active Assets program  should refer to the discussion appearing
                     at page A-4. It is  anticipated that the net asset  value will remain constant at  $1.00
                     per share. Dean Witter has the right to terminate a shareholder's Active Assets service,
                     in  which event all Trust  shares held in a  shareholder's account will be involuntarily
                     redeemed. The  Trust also  reserves the  right to  reduce the  number of  shares in  all
                     accounts if the Trustees determine that this is necessary to maintain the constant $1.00
                     per share net asset value. See "Purchase and Redemption of Shares" (page A-1).
- ----------------------------------------------------------------------------------------------------------
RISKS                The Trust invests principally in high quality, short-term fixed-income securities issued
                     or  guaranteed by the state of California and its local governments which are subject to
                     minimal risk of loss of income and  principal. However, the investor is directed to  the
                     discussions  of  "lease  obligations" (page  5)  and "When-Issued  and  Delayed Delivery
                     Securities" (page 6) concerning the risks associated with such portfolio securities  and
                     management  techniques.  Since  the  Trust concentrates  its  investments  in California
                     tax-exempt securities, the Trust  is affected by any  political, economic or  regulatory
                     developments  affecting  the ability  of  California issuers  to  pay interest  or repay
                     principal (page 6).
- ----------------------------------------------------------------------------------------------------------
    THE SUMMARY INFORMATION  ABOVE SHOULD  BE READ  IN CONJUNCTION  WITH THE  DETAILED INFORMATION  APPEARING
ELSEWHERE  IN THIS PROSPECTUS, INCLUDING THE APPENDIX HERETO, IN  THE DEAN WITTER CLIENT AGREEMENT AND IN THE
TRUST'S STATEMENT OF ADDITIONAL INFORMATION, INCLUDING THE APPENDIX THERETO.
</TABLE>

                                       2

                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
SUMMARY OF TRUST EXPENSES
- --------------------------------------------------------------------------------

    The following table illustrates all expenses and fees that a shareholder  of
the  Trust will incur. The expenses and fees  set forth in the table are for the
year ended June 30, 1994.

<TABLE>
<S>                                       <C>
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed on
 Purchases..............................    None
Maximum Sales Charge Imposed on
 Reinvested Dividends...................  None
Deferred Sales Charge...................  None
Redemption Fees.........................  None
Exchange Fee............................  None
ANNUAL FUND OPERATING EXPENSES (AS A
 PERCENTAGE OF AVERAGE NET ASSETS)
Management Fees.........................    0.50%
12b-1 Fees..............................    0.10%
Other Expenses..........................    0.08%
                                          -------
Total Trust Operating Expenses..........    0.68%
                                          -------
                                          -------
</TABLE>

<TABLE>
<CAPTION>
                                                                          10
EXAMPLE                                   1 YEAR    3 YEARS   5 YEARS    YEARS
- ----------------------------------------  -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>
You would pay the following expenses on
  a $1,000 investment, assuming (1) 5%
  annual return and (2) redemption at
  the end of each time period:              $ 7       $22       $38       $85
</TABLE>

    Dean Witter charges an annual Active Assets program participation fee of $80
($100 for corporate participants). Shareholders of the Trust who are not program
participants will not be charged an Active Assets program fee.

    The above  example should  not be  considered a  representation of  past  or
future  expenses or performance. Actual expenses of  the Trust may be greater or
less than those shown.

    The purpose of  this table is  to assist the  investor in understanding  the
various  costs and expenses that an investor  in the Trust will bear directly or
indirectly. For a  more complete description  of these costs  and expenses,  see
pages A-5 and A-6 in the Appendix to this Prospectus.

FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

    The  following ratios and per share data  for a share of beneficial interest
outstanding throughout each period  have been audited  by Price Waterhouse  LLP,
independent  accountants. The financial highlights should be read in conjunction
with the financial statements  and notes thereto and  the report of  independent
accountants which are contained in this Prospectus commencing on page 11.

<TABLE>
<CAPTION>
                                                                                                  FOR THE PERIOD
                                                     FOR THE YEAR ENDED JUNE 30,                NOVEMBER 12, 1991*
                                          -------------------------------------------------          THROUGH
                                                   1994                      1993                 JUNE 30, 1992
                                          -----------------------   -----------------------   ----------------------
<S>                                       <C>                       <C>                       <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period...............................         $  1.00                   $  1.00                   $  1.00
                                              ----------                ----------                ----------
  Net investment income.................           0.018                     0.018                     0.017
  Less dividends from net investment
   income...............................          (0.018)                   (0.018)                   (0.017)
                                              ----------                ----------                ----------
  Net asset value, end of period........         $  1.00                   $  1.00                   $  1.00
                                              ----------                ----------                ----------
                                              ----------                ----------                ----------
TOTAL INVESTMENT RETURN.................            1.78%                     1.84%                     1.66% (1)
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   thousands)...........................         $288,506                  $202,149                  $170,364
  Ratio of expenses to average net
   assets...............................            0.68%                     0.71%                     0.56% (2) (3)
  Ratio of net investment income to
   average net assets...................            1.77%                     1.82%                     2.42% (2) (3)
<FN>
- -----------------
 * DATE OF COMMENCEMENT OF OPERATIONS.
(1) NOT ANNUALIZED.
(2) ANNUALIZED.
(3)  IF THE  TRUST HAD  BORNE ALL EXPENSES  THAT WERE  ASSUMED OR  WAIVED BY THE
    INVESTMENT MANAGER, THE ABOVE ANNUALIZED EXPENSE RATIO WOULD HAVE BEEN  .80%
    ($.006 PER SHARE) AND THE ABOVE ANNUALIZED NET INVESTMENT INCOME RATIO WOULD
    HAVE BEEN 2.18% ($.023 PER SHARE).
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       3
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------

    THE INVESTMENT OBJECTIVE OF THE TRUST IS TO PROVIDE AS HIGH A LEVEL OF DAILY
INCOME  EXEMPT FROM FEDERAL AND CALIFORNIA  PERSONAL INCOME TAX AS IS CONSISTENT
WITH STABILITY OF  PRINCIPAL AND LIQUIDITY.  It is a  fundamental policy of  the
Trust  that at least 80% of its total  assets will be invested in securities the
interest on which  is exempt  from federal  and California  personal income  tax
("California  tax-exempt securities").  This policy  and the  Trust's investment
objective may  not be  changed  without a  vote of  a  majority of  the  Trust's
outstanding voting securities, as defined in the Act. There is no assurance that
the objective will be achieved.

    The  Trust seeks to achieve its  investment objective by investing primarily
in  high  quality  tax-exempt   securities  with  short-term  maturities.   Such
securities  will include California Municipal  Bonds, California Municipal Notes
and  California  Municipal  Commercial  Paper  ("Municipal  Obligations")   with
maturities of thirteen months or less, which are rated in one of the two highest
rating  categories for  debt obligations by  at least  two nationally recognized
statistical  rating  organizations  ("NRSRO's"--  primarily  Moody's   Investors
Service  ("Moody's") and Standard & Poor's Corporation ("S&P")), or one NRSRO if
the obligation is rated by only one NRSRO. Unrated obligations may be  purchased
if they are determined to be of comparable quality by the Trust's Trustees.

    Up  to 20% of  the Trust's total  assets may also  be invested in securities
exempt from federal personal income tax but not from California personal  income
tax  ("non-California  tax-exempt  securities"), in  taxable  securities  and in
tax-exempt securities  subject  to  the  federal  alternative  minimum  tax  for
individual shareholders ("AMT") (California tax-exempt securities subject to AMT
will  not  be included  in the  80% total  referred to  above for  investment in
California tax-exempt securities). In addition, the Trust may temporarily invest
more than  20%  of  its  total  assets  in  taxable  securities,  non-California
tax-exempt securities, or in tax-exempt securities subject to AMT, to maintain a
"defensive"  posture  when, in  the  opinion of  the  Investment Manager,  it is
advisable to do so because of market conditions. The types of taxable securities
in which  the  Trust  may  temporarily  invest  are  limited  to  the  following
short-term fixed-income securities (maturing in thirteen months or less from the
time  of  purchase); (i)  obligations  of the  United  States Government  or its
agencies, instrumentalities or authorities; (ii)  commercial paper rated P-1  by
Moody's  or A-1  by S&P;  (iii) certificates of  deposit of  domestic banks with
assets of $1 billion or more; and (iv) repurchase agreements with respect to any
of the foregoing portfolio securities.

    California  Municipal  Bonds  and   California  Municipal  Notes  are   debt
obligations  of a state, its cities, municipalities and municipal agencies which
generally have maturities, at the time of their issuance, of either one year  or
more  (Bonds) or  from six months  to three years  (Notes). California Municipal
Commercial  Paper  refers  to  short-term  obligations  of  municipalities.  Any
Municipal  Obligation which depends on the credit of the Federal Government, its
agencies or instrumentalities shall  be considered to have  a Moody's rating  of
Aaa  or  S&P  rating of  AAA.  An  obligation shall  be  considered  a Municipal
Obligation only  if,  in the  opinion  of  bond counsel,  the  interest  payable
therefrom  is exempt from both federal income tax and California personal income
tax.

    The foregoing  percentage  and  rating  limitations apply  at  the  time  of
acquisition  of  a security  based  on the  last  previous determination  of the
Trust's net asset value. Any subsequent change in any rating by a rating service
or change  in percentages  resulting from  market fluctuations  may not  require
elimination  of any security from the  Trust's portfolio. However, in accordance
with procedures adopted by the  Trust's Trustees pursuant to federal  securities
regulations  governing money market funds, the Investment Manager will perform a

                                       4
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
creditworthiness analysis of such downgraded securities, which analysis will  be
reported  to the  Trustees who will,  in turn, determine  whether the securities
continue to  present minimal  credit risks  to  the Trust.  The Trust  does  not
anticipate that more than 5% of its net assets are likely to be downgraded below
the rating requirements described above for Municipal Obligations.

    The ratings assigned by NRSROs represent their opinions as to the quality of
the  securities which they undertake to rate  (see the Appendix to the Statement
of Additional Information  for an explanation  of Moody's and  S&P ratings).  It
should  be emphasized,  however, that the  ratings are general  and not absolute
standards of quality.

    The two  principal classifications  of  Municipal Obligations  are  "general
obligation"  and "revenue" bonds, notes  or commercial paper. General obligation
bonds, notes  or commercial  paper are  secured by  the issuer's  pledge of  its
faith,  credit  and taxing  power  for the  payment  of principal  and interest.
Issuers of general obligation bonds, notes or commercial paper include a  state,
its  counties, cities, towns and other  governmental units. Revenue bonds, notes
or commercial paper  are payable  from the  revenues derived  from a  particular
facility  or  class  of facilities  or,  in  some cases,  from  specific revenue
sources. Revenue bonds, notes or commercial paper are issued for a wide  variety
of  purposes, including the financing of  electric, gas, water and sewer systems
and  other  public  utilities;  industrial  development  and  pollution  control
facilities;   single  and  multi-family  housing  units;  public  buildings  and
facilities; air and marine ports, transportation facilities such as toll  roads,
bridges and tunnels; and health and educational facilities such as hospitals and
dormitories.  They rely primarily on user fees to pay debt service, although the
principal revenue source is often  supplemented by additional security  features
which  are intended to enhance the creditworthiness of the issuer's obligations.
In some cases, particularly revenue bonds  issued to finance housing and  public
buildings,  a direct or implied "moral obligation" of a governmental unit may be
pledged to the payment of debt service.  In other cases, a special tax or  other
charge may augment user fees.

    Included  within  the revenue  bonds  category are  participations  in lease
obligations or installment purchase  contracts (hereinafter collectively  called
"lease  obligations") of municipalities. State and local agencies or authorities
issue lease obligations to acquire equipment and facilities.

    Lease obligations  may  have  risks not  normally  associated  with  general
obligation   or  other  revenue  bonds.  Leases,  and  installment  purchase  or
conditional sale contracts (which may provide  for title to the leased asset  to
pass  eventually  to the  issuer), have  developed as  a means  for governmental
issuers to acquire  property and  equipment without the  necessity of  complying
with  the constitutional and statutory requirements generally applicable for the
issuance of debt. Certain lease obligations contain "non-appropriation"  clauses
that  provide  that the  governmental issuer  has no  obligation to  make future
payments under  the lease  or contract  unless money  is appropriated  for  such
purpose  by  the appropriate  legislative body  on an  annual or  other periodic
basis.  Consequently,  continued  lease  payments  on  those  lease  obligations
containing  "non-appropriation"  clauses  are  dependent  on  future legislative
actions. If such  legislative actions  do not occur,  the holders  of the  lease
obligation  may  experience  difficulty in  exercising  their  rights, including
disposition of the property.

    In addition, lease obligations represent a relatively new type of  financing
that  has  not yet  developed the  depth of  marketability associated  with more
conventional municipal  obligations, and,  as a  result, certain  of such  lease
obligations  may be considered illiquid securities.  To determine whether or not
the Trust will consider such securities to be illiquid (the Trust may not invest
more than ten percent of its net assets in illiquid securities), the Trustees of
the Trust have established guidelines to be utilized by the Trust in determining
the liquidity of a lease obligation. The factors to be considered in making  the
determination  include: 1)  the frequency  of trades  and quoted  prices for the
obliga-

                                       5
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
tion; 2) the number of dealers willing to purchase or sell the security and  the
number of other potential purchasers; 3) the willingness of dealers to undertake
to  make a market in the security; and  4) the nature of the marketplace trades,
including, the time needed to dispose of the security, the method of  soliciting
offers,  and the mechanics  of the transfer. All  lease obligations purchased by
the Trust  are subject  to the  creditworthiness standards  discussed above  for
Municipal Obligations.

    The  Trust does not  generally intend to  invest more than  25% of its total
assets in securities  of any one  governmental unit. The  Trust may invest  more
than  25% of  its total assets  in industrial development  and pollution control
bonds (two kinds  of tax-exempt  Municipal Bonds) whether  or not  the users  of
facilities  financed by such bonds are in the same industry. In cases where such
users are in the same  industry, there will be additional  risk to the Trust  in
the  event of an economic downturn in  such industry, which may result generally
in a lowered need for such facilities and a lowered ability of such users to pay
for the use of such facilities.

PORTFOLIO MANAGEMENT

    Although the Trust will generally acquire securities for investment with the
intent of holding them to maturity and will not seek profits through  short-term
trading,  the Trust may  dispose of any  security prior to  its maturity to meet
redemption requests. Securities  may also  be sold when  the Trust's  Investment
Manager  believes such  disposition to  be advisable on  the basis  of a revised
evaluation of the issuer or based upon relevant market considerations. There may
be occasions when, as a result of maturities of portfolio securities or sale  of
Trust shares, or in order to meet anticipated redemption requests, the Trust may
hold cash which is not earning income.

    The  Trust anticipates that  the average weighted  maturity of the portfolio
will be  90  days or  less.  The relatively  short-term  nature of  the  Trust's
portfolio  is expected to result  in a lower yield  than portfolios comprised of
longer-term tax-exempt securities.

    VARIABLE RATE AND FLOATING RATE  OBLIGATIONS. The interest rates payable  on
certain  Municipal Bonds  and Municipal  Notes are  not fixed  and may fluctuate
based upon  changes in  market rates.  Municipal obligations  of this  type  are
called "variable rate" or "floating rate" obligations. The interest rate payable
on  a variable rate  obligation is adjusted  at predesignated periodic intervals
and on a floating rate obligation, whenever there is a change in the market rate
of interest on which the interest rate payable is based.

    WHEN-ISSUED  AND  DELAYED  DELIVERY  SECURITIES.  The  Trust  may   purchase
tax-exempt securities on a when-issued or delayed delivery basis; i.e., delivery
and  payment can take place  a month or more after  the date of the transaction.
These securities are subject  to market fluctuation and  no interest accrues  to
the purchaser prior to settlement. At the time the Trust makes the commitment to
purchase  such securities, it will record the transaction and thereafter reflect
the value, each day, of such securities in determining its net asset value.

    BROKERAGE ALLOCATION.   Brokerage commissions  are not  normally charged  on
purchases  and sales of short-term  municipal obligations, but such transactions
may involve  transaction costs  in the  form of  spreads between  bid and  asked
prices.  Pursuant to  an order  of the  Securities and  Exchange Commission, the
Trust may effect principal transactions in certain money market instruments with
Dean  Witter.  In  addition,  the  Trust  may  incur  brokerage  commissions  on
transactions conducted through Dean Witter.

SPECIAL CONSIDERATIONS RELATING TO CALIFORNIA TAX-EXEMPT SECURITIES

    The  Trust  will  be  affected  by  any  political,  economic  or regulatory
developments affecting  the ability  of California  issuers to  pay interest  or
repay  principal on their obligations. Various subsequent developments regarding
the California  Constitution  and State  statutes  which limit  the  taxing  and
spending authority of California governmental entities may impair the ability of
California   issuers  to  maintain   debt  service  on   their  obligations.  Of

                                       6
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
particular impact are constitutional voter initiatives, which have become common
in recent years. The following information constitutes only a brief summary  and
is not intended as a complete description.

    In  1978, Proposition 13,  an amendment to  the California Constitution, was
approved, limiting real  property valuation  for property tax  purposes and  the
power  of local governments to increase  real property tax revenues and revenues
from other  sources.  Legislation  adopted after  Proposition  13  provided  for
assistance   to  local   governments,  including   the  redistribution   of  the
then-existing surplus in  the General  Fund, reallocation of  revenues to  local
governments,   and  assumption  by   the  State  of   certain  local  government
obligations. However,  more recent  legislation reduced  such state  assistance.
There  can  be no  assurance that  any particular  level of  State aid  to local
governments will  be maintained  in future  years. In  NORDLINGER V.  HAHN,  the
United  States Supreme Court upheld certain provisions of Proposition 13 against
claims that it  violated the  equal protection  clause of  the Constitution.  In
1979, an amendment was passed adding Article XIIIB to the State Constitution. As
amended in 1990, Article XIIIB imposes an "appropriations limit" on the spending
authority   of  the  State  and  local  government  entities.  In  general,  the
appropriations limit is based on certain 1985-86 expenditures, adjusted annually
to reflect  changes in  the  cost of  living,  population and  certain  services
provided by State and local government entities. "Appropriations limit" does not
include  appropriations for qualified capital outlay projects, certain increases
in transportation-related taxes, and certain emergency appropriations.

    In 1988, State voters approved Proposition 87, which amended Article XVI  of
the   State  Constitution  to  authorize   the  State  Legislature  to  prohibit
redevelopment agencies  from  receiving  any property  tax  revenues  raised  by
increased  property taxes to repay bonded indebtedness of local government which
is not approved by voters  on or before January 1,  1989. It is not possible  to
predict  whether the State Legislature will enact  such a prohibition, nor is it
possible to predict the impact of  Proposition 87 on redevelopment agencies  and
their ability to make payments on outstanding debt obligations.

    In November 1988, California voters approved Proposition 98. This initiative
requires  that revenues  in excess  of amounts permitted  to be  spent and which
would otherwise  be returned  by revision  of  tax rates  or fee  schedules,  be
transferred  and allocated (up to a maximum of 40%) to the State School Fund and
be expended solely for purposes of instructional improvement and accountability.
No such transfer or allocation of  funds will be required if certain  designated
state  officials determine that annual student  expenditures and class size meet
certain criteria as  set forth  in Proposition 98.  Any funds  allocated to  the
State  School Fund shall cause the appropriation limits to be annually increased
for any such allocation made in the prior year. Proposition 98 also requires the
State of California to provide a minimum level of funding for public schools and
community colleges. The initiative  permits the enactment  of legislation, by  a
two-thirds vote, to suspend the minimum funding requirement for one year.

    In  July 1991,  California increased  taxes by  adding two  new marginal tax
rates, at 10% and 11%,  effective for tax years  1991 through 1995. After  1995,
the  maximum personal income  tax rate is  scheduled to return  to 9.3%, and the
alternative minimum tax rate is scheduled to drop from 8.5% to 7%. In  addition,
legislation  in July 1991  raised the sales  tax by 1.25%.  0.5% was a permanent
addition to counties, but  with the money  earmarked to trust  funds to pay  for
health  and welfare programs  whose administration was  transferred to counties.
This tax increase will be cancelled if a court rules that such transfer and  tax
increase violate any constitutional requirements. 0.5% of the State tax rate was
scheduled  to expire on June  30, 1993, but was extended  for six months for the
benefit  of  counties  and  cities.  On  November  2,  1993,  voters  made  this
half-percent levy a permanent source of funding for local government.

                                       7
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
    The  State is a party to numerous  legal proceedings, many of which normally
occur in governmental operations. In addition, the State is involved in  certain
other  legal proceedings that,  if decided against the  State, might require the
State to make significant future expenditures or impair future revenue  sources.
Two  such court cases  may upset California's budgetary  balance. In 1992-93 and
1993-94, the  State met  part  of its  Proposition  98 commitment  to  education
through $1.8 billion in off-book loans. These loans were held to be illegal in a
lower court decision, CALIFORNIA TEACHERS ASSOCIATION V. GOULD. If this decision
is  upheld on appeal, the schools will not be required to repay those loans, and
the officially  recognized  1994-95  year-end deficit  would  increase  by  $1.8
billion.   In  July,  1994,  a  federal   appeals  court  invalidated  the  Bush
Administration's approval of a  5.8% welfare benefits  cut imposed in  December,
1992.  The ruling could also  nullify a further 2.7%  reduction approved in 1993
and a 2.3% reduction scheduled to go into effect in September, 1994. It has been
estimated that, if the ruling is upheld on appeal, it could cost the State up to
$175 million per year in additional welfare benefit payments.

    Since 1990,  California has  faced  the worst  economic, fiscal  and  budget
conditions  since the 1930s. After experiencing strong growth throughout much of
the 1980s,  the State  was  adversely affected  by  the national  recession  and
cutbacks  in aerospace  and defense  spending, both of  which have  had a severe
impact on the economy in Southern California. The State's tax revenue experience
clearly reflects sharp  declines in  employment, income  and retail  sales on  a
scale  not seen  in over  fifty years.  Although the  national economic recovery
continued at a strong  pace in the  first quarter of  1994, California is  still
experiencing  the  effects of  the recession.  However,  the State's  budget for
fiscal  year  1994-95  assumes  that  the  State  will  begin  to  recover  from
recessionary  conditions in 1994, with a modest upturn in 1994 and continuing in
1995.

    These economic difficulties have exacerbated the structural budget imbalance
which has been  evident since  fiscal year  1985-1986. Since  that time,  budget
shortfalls  have  become increasingly  more difficult  to  solve. The  State has
recorded General Fund operating deficits in  five of the past six fiscal  years.
Many  of  these problems  have  been attributable  to  the fact  that  the great
population influx  has  produced  increased  demand  for  education  and  social
services  at a  far greater pace  than the  growth in the  State's tax revenues.
Despite substantial tax increases, expenditure reductions and the shift of  some
expenditure  responsibilities to local government,  the budget condition remains
problematic.

    On July 8, 1994, the Governor of California signed into law a $57.5  billion
budget which, among other things: (a) reduces welfare grants and aid to families
and  to the aged, blind  and disabled, and (b) relies  on the State's ability to
obtain $2.8 billion  in new reimbursement  from the federal  government for  the
State's  cost of serving illegal immigrants.  Although the State legislature has
passed a standby measure which could trigger automatic budget reductions if  the
state's  fiscal condition worsens over the next  two years, the stability of the
budget would  be jeopardized  if the  state is  unable to  obtain the  hoped-for
federal funds.

    The  current budget includes General Fund spending of $40.9 billion, up 4.2%
from the  level of  spending during  the 1993-94  fiscal year.  The budget  also
envisions  General Fund  spending climbing  another 8.4%  in the  1995-96 fiscal
year. The budget forecasts levels of revenues and expenditures which will result
in operating surpluses in both 1994-95  and 1995-96, leading to the  elimination
of an estimated $2.0 billion accumulated budget deficit by June 30, 1996.

    Because  of  the State's  continuing  budget problems,  the  State's General
Obligation bonds were downgraded  in July 1994  from Aa to A1  by Moody's, to  A
from  A+ by Standard & Poor's, and from AA to A by Fitch Investors Service, Inc.
All three  rating  agencies expressed  uncertainty  in the  State's  ability  to
balance its budget by 1996.

    On  January 17, 1994, Northridge,  California experienced an earthquake that
registered 6.7 on

                                       8
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
the Richter Scale resulting in significant property damage to private and public
facilities throughout Los Angeles and Ventura  Counties, and to parts of  Orange
and San Bernardino Counties. The effected portions of the counties were declared
to  be federal  and state disaster  areas. The  total damage is  estimated to be
between $13  billion and  $20 billion.  The  cost to  federal, state  and  local
government  is  estimated  to  be  $11.6  billion  with  the  State's  and local
governments' share estimated to be $1.9 billion and $135 million,  respectively.
In  mid-February 1994  Congress approved  an earthquake  relief package totaling
about $8.6  billion,  bringing  total  federal  support  to  $9.5  billion.  The
California legislature approved $2 billion in bond refinancing in mid-March 1994
for earthquake recovery costs and seismic safety improvements. However, the bond
issue  was  rejected by  California voters  in  the June  1994 election.  It now
appears that the state will  pay for its share of  the recovery costs through  a
reallocation of existing funds and borrowing from the federal government.

    The  bipartisan Commission on  State Finance believes  that, although it may
carry long-term implications for  the City of Los  Angeles, the earthquake  will
not derail the State's economic recovery.

    The  effect  of these  various constitutional  and statutory  amendments and
budget developments upon the ability of  California issuers to pay interest  and
principal  on their obligations remains unclear and in any event may depend upon
whether a  particular California  tax-exempt security  is a  general or  limited
obligation  bond  and on  the  type of  security provided  for  the bond.  It is
possible that  other measures  affecting  the taxing  or spending  authority  of
California  or  its political  subdivisions may  be approved  or enacted  in the
future.

    For a more detailed discussion of the State of California economic  factors,
see the Statement of Additional Information.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    Investment  restrictions listed below are  among the restrictions which have
been adopted by the Trust as fundamental policies. Under the Act, a  fundamental
policy  may not  be changed without  the vote  of a majority  of the outstanding
voting securities of the Trust, as defined in the Act.

    For purposes of the following restrictions: (a) an "issuer" of a security is
the entity whose assets  and revenues are committed  to the payment of  interest
and  principal on  that particular  security, provided  that the  guarantee of a
security will be considered a separate security; (b) a "taxable security" is any
security the interest on  which is subject  to federal income  tax; and (c)  all
percentage limitations apply immediately after a purchase or initial investment,
and  any subsequent  change in any  applicable percentage  resulting from market
fluctuations does not require elimination of any security from the portfolio.

    The Trust may not:

        1.  With respect to 75% of its total assets, purchase securities of  any
    issuer  if, immediately thereafter, more than  5% (10% where the security is
    the guarantee of a  security) of the  value of its total  assets are in  the
    securities  of any one issuer (other  than obligations issued, or guaranteed
    by, the United States  Government, its agencies  or instrumentalities or  by
    the State of California or its political subdivisions).

        2.   With respect to 75% of its  total assets, purchase more than 10% of
    all outstanding taxable debt securities of  any one issuer (other than  debt
    securities issued, or guaranteed as to principal and interest by, the United
    States Government, its agencies or instrumentalities).

        3.   Invest  25% or  more of the  value of  its total  assets in taxable
    securities of issuers in

                                       9
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
    any one industry  (industrial development  and pollution  control bonds  are
    grouped into industries based upon the business in which the issuers of such
    obligations  are engaged).  This restriction  does not  apply to obligations
    issued or  guaranteed  by the  United  States Government,  its  agencies  or
    instrumentalities   or  by  the   State  of  California   or  its  political
    subdivisions, or to domestic  bank obligations (including domestic  branches
    of foreign banks).

   
    The  Trust will  comply with any  investment policies  necessitated by rules
governing the pricing of shares of money market funds (see "How Net Asset  Value
is  Determined" in the  Appendix), even though an  investment restriction of the
Trust is less restrictive than the related policy.
    

                                       10
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                       <C>
ASSETS:
Investments in securities, at value
 (amortized cost $314,834,156) (Note
 1).....................................  $ 314,834,156
Cash....................................     12,964,989
Interest receivable.....................      1,417,775
Deferred organizational expenses (Note
 1).....................................         22,039
Prepaid expenses........................          9,109
                                          -------------
      TOTAL ASSETS......................    329,248,068
                                          -------------
LIABILITIES:
Payable for:
  Investments purchased.................     40,518,412
  Shares of beneficial interest
   repurchased..........................             20
  Investment management fee (Note 2)....        118,278
  Plan of distribution fee (Note 3).....         23,656
Accrued expenses (Note 4)...............         81,758
                                          -------------
      TOTAL LIABILITIES.................     40,742,124
                                          -------------
NET ASSETS:
Paid-in-capital.........................    288,522,781
Accumulated net realized loss on
 investments............................        (16,957)
Accumulated undistributed net investment
 income.................................            120
                                          -------------
      NET ASSETS........................  $ 288,505,944
                                          -------------
                                          -------------
NET ASSET VALUE PER SHARE, 288,522,781
 shares outstanding (unlimited shares
 authorized of $.01 par value)..........          $1.00
</TABLE>

  STATEMENT OF OPERATIONS
  FOR THE YEAR ENDED JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                     <C>
INVESTMENT INCOME:
 INTEREST INCOME........................ $   6,518,565
                                        -------------
 EXPENSES
  Investment management fee (Note 2)....     1,328,271
  Plan of distribution fee (Note 3).....       261,619
  Transfer agent fees and expenses......        62,069
  Professional fees.....................        55,514
  Registration fees.....................        35,284
  Shareholder reports and notices.......        26,469
  Trustees' fees and expenses (Note
   4)...................................        26,082
  Organizational expenses (Note 1)......        10,364
  Other.................................         5,217
                                        -------------
      TOTAL EXPENSES....................     1,810,889
                                        -------------
        NET INVESTMENT INCOME...........     4,707,676
                                        -------------

NET REALIZED LOSS ON INVESTMENTS (Note
 1).....................................          (900)
                                        -------------
        NET INCREASE IN NET ASSETS
         RESULTING FROM OPERATIONS...... $   4,706,776
                                        -------------
                                        -------------
</TABLE>

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                             FOR THE         FOR THE
                                           YEAR ENDED      YEAR ENDED
INCREASE (DECREASE) IN NET ASSETS:        JUNE 30, 1994   JUNE 30, 1993
                                          -------------   -------------
<S>                                       <C>             <C>
  Operations:
    Net investment income...............  $  4,707,676    $  3,293,182
    Net realized loss on investments....          (900)        (16,057)
                                          -------------   -------------
      Net increase in net assets
      resulting from operations.........     4,706,776       3,277,125
  Dividends to shareholders from net
   investment income....................    (4,707,587)     (3,293,161)
  Net increase from transactions in
   shares of beneficial interest (Note
   5)...................................    86,358,020      31,800,872
                                          -------------   -------------
      Total increase....................    86,357,209      31,784,836
NET ASSETS:
  Beginning of period...................   202,148,735     170,363,899
                                          -------------   -------------
  END OF PERIOD (including undistributed
   net investment income of $120 and
   $31, respectively)...................  $288,505,944    $202,148,735
                                          -------------   -------------
                                          -------------   -------------
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       11
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

1.  ORGANIZATION AND  ACCOUNTING POLICIES --  Active Assets California  Tax-Free
Trust  (the "Trust") is registered under the  Investment Company Act of 1940, as
amended (the "Act"), as a  diversified, open-end management investment  company.
The  Trust was organized as a Massachusetts  business trust on July 10, 1991 and
commenced operations on November 12, 1991.

   The following is a summary of significant accounting policies:

   A.  VALUATION OF INVESTMENTS -- Portfolio securities are valued at  amortized
   cost, which approximates market value.

   B.   ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on
   the trade date (date the order to buy or sell is executed). In computing  net
   investment  income,  the  Trust  amortizes any  premiums  and  original issue
   discounts and accrues interest daily on securities owned. Realized gains  and
   losses on security transactions are determined on the identified cost method.

   C.   FEDERAL INCOME TAX STATUS -- It is the Trust's policy to comply with the
   requirements of the Internal Revenue Code applicable to regulated  investment
   companies  and to distribute all of its taxable and non-taxable income to its
   shareholders. Accordingly, no federal income tax provision is required.

   D.    DIVIDENDS   AND  DISTRIBUTIONS   TO  SHAREHOLDERS   --  Dividends   and
   distributions  to shareholders are recorded  by the Trust as  of the close of
   the Trust's business day.

   E.    ORGANIZATIONAL  EXPENSES  --   The  Trust's  Investment  Manager   paid
   organizational  expenses of the Trust in the amount of approximately $46,500.
   The Trust reimbursed the Investment Manager  for these costs which are  being
   amortized  by the Trust on a straight-line  basis over a period not to exceed
   five years from the commencement of operations.

2.   INVESTMENT MANAGEMENT  AGREEMENT --  Pursuant to  an Investment  Management
Agreement  with Dean  Witter InterCapital  Inc. (the  "Investment Manager"), the
Trust pays its Investment Manager a management fee, calculated daily and payable
monthly, by applying the following annual rates  to the net assets of the  Trust
determined  as of the  close of each business  day: 0.50% of  the portion of the
daily net assets not exceeding $500 million; 0.425% of the portion of the  daily
net  assets exceeding $500 million but not exceeding $750 million; 0.375% of the
portion of the  daily net  assets exceeding $750  million but  not exceeding  $1
billion;  0.35% of the portion of the  daily net assets exceeding $1 billion but
not exceeding  $1.5 billion;  0.325% of  the  portion of  the daily  net  assets
exceeding $1.5 billion but not exceeding $2 billion; 0.30% of the portion of the
daily  net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275% of
the portion of the daily net assets exceeding $2.5 billion but not exceeding  $3
billion; and 0.25% of the portion of the daily net assets exceeding $3 billion.

  Under  the  terms  of  the  Agreement, in  addition  to  managing  the Trust's
investments, the Investment Manager maintains  certain of the Trust's books  and
records   and  furnishes  office  space  and  facilities,  equipment,  clerical,
bookkeeping and certain legal services, and pays the salaries of all  personnel,
including officers of the Trust who are employees of the Investment Manager. The
Investment Manager also bears the cost of telephone services, heat, light, power
and other utilities provided to the Trust.

3.   PLAN  OF DISTRIBUTION  -- Shares  of beneficial  interest of  the Trust are
distributed by Dean Witter Distributors  Inc. (the "Distributor"), an  affiliate
of  the Investment Manager.  The Trust has  entered into a  Plan of Distribution
(the "Plan"), pursuant to Rule 12b-1 under the Act, with the Distributor whereby
the Distributor finances certain activities in connection with the  distribution
of shares of the Trust.

                                       12
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

    Under  the Plan  the Distributor  bears the  expense of  all promotional and
distribution related activities on behalf of the Trust, except for expenses that
the  Trustees  determine  to  reimburse,  as  described  below.  The   following
activities  and services may be provided by  the Distributor under the Plan: (1)
compensation  to   sales   representatives   of  the   Distributor   and   other
broker-dealers; (2) sales incentives and bonuses to sales representatives and to
marketing  personnel in connection with promoting  sales of shares; (3) expenses
incurred in  connection  with  promoting  sales of  shares;  (4)  preparing  and
distributing  sales literature;  and (5)  providing advertising  and promotional
activities, including direct mail solicitation and television, radio, newspaper,
magazine and other media advertisements.

    The Trust is authorized to  reimburse the Distributor for specific  expenses
the  Distributor incurs or plans  to incur in promoting  the distribution of the
Trust's shares. The amount of each monthly reimbursement payment may in no event
exceed an amount equal to a payment at  the annual rate of 0.15% of the  Trust's
average daily net assets during the month. For the year ended June 30, 1994, the
distribution fee established by the Trustees, and accrued was at the annual rate
of 0.10%.

4.    SECURITY TRANSACTIONS  AND  TRANSACTIONS WITH  AFFILIATES  -- The  cost of
purchases and the proceeds from sales/maturities of portfolio securities for the
year ended June 30, 1994 aggregated $623,042,920 and $536,503,769, respectively.

    Effective January 1,  1994, the  Trust adopted  an unfunded  noncontributory
defined  benefit pension plan covering all independent Trustees of the Trust who
will have served as an independent Trustee  for at least five years at the  time
of  retirement.  Benefits under  this plan  are  based on  years of  service and
compensation during the last five years  of service. Aggregate pension cost  for
the  year ended  June 30, 1994  included in  Trustees' fees and  expenses in the
Statement of Operations, amounted to $5,950. At June 30, 1994, the Trust had  an
accrued pension liability of $5,859 which is included in accrued expenses in the
Statement of Assets and Liabilities.

    Dean  Witter Trust Company,  an affiliate of the  Investment Manager and the
Distributor, is the  Trust's transfer  agent. At June  30, 1994,  the Trust  had
transfer agent fees and expenses payable of approximately $5,700.

5.    SHARES OF  BENEFICIAL  INTEREST --  Transactions  in shares  of beneficial
interest, at $1.00 per share, were as follows:

<TABLE>
<CAPTION>
                                            FOR THE YEAR       FOR THE YEAR
                                               ENDED              ENDED
                                           JUNE 30, 1994      JUNE 30, 1993
                                          ----------------   ----------------
<S>                                       <C>                <C>
Shares sold.............................    1,106,266,195        683,300,787
Shares issued in reinvestment of
 dividends..............................        4,707,587          3,293,161
                                          ----------------   ----------------
                                            1,110,973,782        686,593,948
Shares repurchased......................   (1,024,615,762)      (654,793,076)
                                          ----------------   ----------------
Net increase............................       86,358,020         31,800,872
                                          ----------------   ----------------
                                          ----------------   ----------------
</TABLE>

6.  FEDERAL INCOME TAX STATUS  -- At June 30, 1994  the Trust had a net  capital
loss  carryover of approximately  $16,000 available through  June 30, 2002 which
may  be  used  to  offset  future  capital  gains  to  the  extent  provided  by
regulations.  Capital losses incurred  after October 31  within the taxable year
are deemed to arise on the first business day of the Trust's next taxable  year.
The  Trust  incurred  and  will  elect  to  defer  such  net  capital  losses of
approximately $900 during fiscal 1994.

7.  SELECTED RATIOS AND PER SHARE  DATA -- See the "Financial Highlights"  table
on page 3 of this Prospectus.

                                       13
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN  CALIFORNIA TAX-EXEMPT SHORT-TERM           CURRENT
 THOUSANDS)  VARIABLE RATE MUNICIPAL                     YIELD         VALUE
- ------------                                           ---------   -------------
<C>          <S>                                       <C>         <C>
             OBLIGATIONS* (68.1%)
             CALIFORNIA
  $ 4,140    Association of Bay Area Governments,
              Pooled Ser 1987, 2.60% due 7/7/94......         2.60% $   4,140,000
    4,000    Big Bear Lake, Southwest Gas Corp 1993
              Series A (AMT), 2.25% due 7/6/94.......         2.25     4,000,000
   13,000    California Alternative Energy Finance
              Authority, GE Capital Corp Arroyo
              Energy Ser 1993 B (AMT), 2.20% due
              7/6/94.................................         2.20    13,000,000
    6,000    California Health Facilities Financing
              Authority,
              Adventist Health System West Sutter
              Health Ser A, 2.20% due 7/7/94.........         2.20     6,000,000
    2,900    Catholic HealthCare West 1988 Ser A
              (MBIA Insured), 2.35% due 7/6/94.......         2.35     2,900,000
    3,800    Childrens Hospital of Orange County Ser
              1991 (MBIA Insured),
              2.15% due 7/7/94.......................         2.15     3,800,000
    7,000    Health Dimensions Inc Ser 1987 A, 2.35%
              due 8/1/94.............................         2.35     7,000,000
    5,460    Huntington Memorial Hospital Ser 1985,
              2.20% due 7/6/94.......................         2.20     5,460,000
    2,800    Pooled Loan Ser 1987 A (MBIA Insured),
              2.55% due 7/7/94.......................         2.55     2,800,000
    3,000    St Francis Memorial Hospital Ser 1993 B,
              3.50% due 7/1/94.......................         3.50     3,000,000
    7,000    St Joseph Health System Ser 1991 B,
              2.75% due 7/1/94.......................         2.75     7,000,000
             California Pollution Control Financing
              Authority,
              Chevron USA Ser B 1984, 3.70% due
              12/15/94...............................         3.70     3,535,000
    3,535
    1,750    Noranda-Grey Eagle Mines Inc Ser 1984 B,
              2.45% due 7/6/94.......................         2.45     1,750,000
    5,000    North County Recycling Center 1991
              Series B, 2.50% due 7/6/94.............         2.50     5,000,000
    5,000    Stanislaus Inc Ser 1987 (AMT), 3.00% due
              7/1/94.................................         3.00     5,000,000
   14,000    California Public Capital Improvements
              Financing Authority, Pooled Ser 1988 C,
              3.15% due 9/15/94......................         3.15    14,000,000
    8,000    Contra Costa County, Multi-family The
              Park Regency Ser 1992 A (AMT),
              2.30% due 7/6/94.......................         2.30     8,000,000
    4,600    Contra Costa Transportation Authority,
              Sales Tax 1993 Ser A (FGIC Insured),
              2.55% due 7/6/94.......................         2.55     4,600,000
   11,700    Daly City Housing Development Finance
              Agency, Serramonte-Del Ray Multi-family
              Ser 1985 A, 2.30% due 7/7/94...........         2.30    11,700,000
    5,000    Irvine, The Irvine Co Multi-family Ser
              1983 A, 2.65% due 7/5/94...............         2.65     5,000,000
    3,800    Kern County, Public Facilities Ser 1986
              C COPs, 2.25% due 7/6/94...............         2.25     3,800,000
    6,000    Long Beach, Memorial Health Services
              Semiannual Ser 1984 C, 2.20% due
              7/6/94.................................         2.20     6,000,000
    2,900    Los Angeles, Multi-family 1985 Ser K,
              2.40% due 7/5/94.......................         2.40     2,900,000
   10,500    Los Angeles County Metropolitian
              Transportation Authority, Prop C Sales
              Tax Refg Ser 1993 A (MBIA Insured),
              2.40% due 7/7/94.......................         2.40    10,500,000
    5,000    Newport Beach, Hoag Memorial
              Hospital/Presbyterian 1992 Ser A,
              3.45% due 7/1/94.......................         3.45     5,000,000
    4,600    Ontario Redevelopment Agency, Daisy XX
              Assoc Ltd Ser 1984, 2.25% due 7/7/94...         2.25     4,600,000
    2,000    Orange County, Niguel Summit II Apts
              Issue U of 1985, 2.60% due 7/5/94......         2.60     2,000,000
    5,000    Orange County Sanitation Districts, Ser
              1993 COPs (AMBAC Insured),
              3.00% due 7/1/94.......................         3.00     5,000,000
    3,900    Redlands, Orange Village Apts 1988 Ser A
              (AMT), 2.55% due 7/6/94................         2.55     3,900,000
    6,200    Sacramento County, Administration Center
              & Courthouse Ser 1990 COPs,
              2.10% due 7/7/94.......................         2.10     6,200,000
    6,000    San Diego County Regional Transportation
              Commission, Sales Tax 1992 Ser A (FGIC
              Insured), 2.50% due 7/6/94.............         2.50     6,000,000
    5,000    San Francisco Redevelopment Agency,
              Bayside Village Multi-family 1985 Issue
              D Ser A, 2.525% due 7/7/94.............         2.525     5,000,000
    2,000    San Jose, Kimberly Woods Apts Issue of
              1984, 2.25% due 7/7/94.................         2.25     2,000,000
    1,300    Santa Ana, Town & Country Manor Ser
              1990, 3.00% due 7/1/94.................         3.00     1,300,000
    7,200    Southern California Public Power
              Authority, Transmission 1991 Refg Ser
              (AMBAC Insured), 2.10% due 7/6/94......         2.10     7,200,000
    4,415    Turlock, Irrigation District Ser 1988 A,
              2.20% due 7/6/94.......................         2.20     4,415,000
             PUERTO RICO
    2,000    Puerto Rico Government Development Bank,
              Refg Ser 1985, 2.25% due 7/6/94........         2.25     2,000,000
    1,000    Puerto Rico Highway & Transportation
              Authority, Ser X, 2.40% due 7/6/94.....         2.40     1,000,000
                                                                   -------------
             TOTAL CALIFORNIA TAX-EXEMPT SHORT-TERM
              VARIABLE RATE MUNICIPAL OBLIGATIONS
              (AMORTIZED COST $196,500,000)                          196,500,000
                                                                   -------------
</TABLE>

                                       14
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994 (CONTINUED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                       YIELD TO
                                                       MATURITY
 PRINCIPAL                                                ON
 AMOUNT (IN                                             DATE OF
 THOUSANDS)                                            PURCHASE        VALUE
- ------------                                           ---------   -------------
<C>          <S>                                       <C>         <C>
             CALIFORNIA TAX-EXEMPT COMMERCIAL PAPER
              (25.3%)
             California Pollution Control Financing
              Authority,
              Pacific Gas & Electric Co Ser B 1988,
              3.00% due 8/12/94......................         3.00% $   2,500,000
  $ 2,500
    6,000    Pacific Gas & Electric Co Ser E 1988,
              3.20% due 9/14/94......................         3.20     6,000,000
    5,000    Thermal Energy Dev Partnership Ser A
              (AMT), 3.25% due 8/4/94................         3.25     5,000,000
    5,000    Chula Vista, San Diego Gas & Electric Co
              Ser 1992 C (AMT), 3.10% due 8/16/94....         3.10     5,000,000
    2,500    Delmar Race Track Authority, Ser 1993
              BANs, 2.65% due 8/10/94................         2.65     2,500,000
    4,000    East Bay Municipal Utility District,
              Water, 2.45% due 8/11/94...............         2.45     4,000,000
             Irvine Assessment District # 85-7,
    3,000    2.80% due 7/21/94.......................         2.80     3,000,000
    2,000    2.45% due 8/18/94.......................         2.45     2,000,000
    6,000    Long Beach Harbor Department, Ser A
              (AMT), 2.75% due 9/12/94...............         2.75     6,000,000
             Los Angeles Department of Water & Power,
              Electric
    3,900    3.15% due 8/17/94.......................         3.15     3,900,000
    5,000    2.65% due 9/8/94........................         2.65     5,000,000
    6,900    3.25% due 9/20/94.......................         3.25     6,900,000
             Los Angeles Wastewater Sys
    6,400    2.65% due 8/15/94.......................         2.65     6,400,000
    4,700    3.15% due 8/23/94.......................         3.15     4,700,000
             Sacramento Municipal Utility District,
              Ser H,
    4,000    2.70% due 7/27/94.......................         2.70     4,000,000
    6,194    3.30% due 10/21/94......................         3.30     6,194,000
                                                                   -------------
             TOTAL CALIFORNIA TAX-EXEMPT COMMERCIAL
               PAPER
               (AMORTIZED COST $73,094,000)..........                 73,094,000
                                                                   -------------
             CALIFORNIA TAX-EXEMPT SHORT-TERM
              MUNICIPAL NOTES (15.7%)
    5,000    Alameda County, 1993-1994 TRANs, dtd
              7/8/93 3.25% due 7/29/94...............         2.75     5,001,864
             California School Cash Reserve Program
              Authority,
    7,000    1993 Pool Ser A, dtd 7/2/93 3.40% due
              7/5/94.................................         2.90     7,000,372
    5,000    1994 Contingency Ser A, dtd 7/5/94 4.50%
              due 6/28/95 (a)........................         3.85     5,030,700
    8,000    1994 Pool Ser A, dtd 7/5/94 4.50% due
              7/5/95 (a).............................         3.75     8,057,760
    9,000    California Statewide Communities
              Development Authority, 1994 Ser A
              TRANs, dtd 7/6/94 4.50% due 7/17/95
              (a)....................................         3.65     9,075,960
    5,000    Los Angeles County Local Educational
              Agencies, Pooled 1994-95 Ser A TRANs,
              dtd 7/7/94 4.50% due 7/6/95 (a)........         3.75     5,036,000
    6,000    Riverside County,1994-95 TRANs, dtd
              7/1/94 4.25% due 6/30/95 (a)...........         3.60     6,037,500
                                                                   -------------
             TOTAL CALIFORNIA TAX-EXEMPT SHORT-TERM
               MUNICIPAL NOTES
               (AMORTIZED COST $45,240,156)..........                 45,240,156
                                                                   -------------
</TABLE>

   
<TABLE>
<C>          <S>                                       <C>           <C>
             TOTAL INVESTMENTS (AMORTIZED COST
               $314,834,156) (B).....................       109.1%     314,834,156
             LIABILITIES IN EXCESS OF CASH AND OTHER
               ASSETS................................        (9.1)     (26,328,212)
                                                          -----      -------------
             NET ASSETS..............................       100.0%   $ 288,505,944
                                                          -----      -------------
                                                          -----      -------------
<FN>
- ---------------
AMT - ALTERNATIVE MINIMUM TAX.
BANS - BOND ANTICIPATION NOTES.
COPS - CERTIFICATE OF PARTICIPATION.
TRANS - TAX AND REVENUE ANTICIPATION NOTES.
*  DUE DATE REFLECTS NEXT RATE CHANGE.
(A) WHEN ISSUED SECURITY.
(B) COST IS THE SAME FOR FEDERAL INCOME TAX PURPOSES.
</TABLE>
    

                       SEE NOTES TO FINANCIAL STATEMENTS

                            1994 FEDERAL TAX NOTICE (UNAUDITED)
During  the year ended June  30, 1994, the Trust  paid to shareholders $0.017624
per share from net investment income.  All of the Trust's dividends were  exempt
interest  dividends,  excludable  from  gross  income  for  Federal  income  tax
purposes.

                                       15
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------

To the Shareholders and Trustees of Active Assets California Tax-Free Trust

In our opinion, the accompanying statement of assets and liabilities,  including
the  portfolio of investments,  and the related statements  of operations and of
changes in  net assets  and the  financial highlights  (which appear  under  the
heading  "Financial Highlights" on page 3 of this Prospectus) present fairly, in
all material  respects,  the  financial position  of  Active  Assets  California
Tax-Free Trust (the "Trust") at June 30, 1994, the results of its operations for
the  year then ended, the changes in its net assets for each of the two years in
the period then ended and the financial highlights for each of the two years  in
the  period then  ended and  for the period  November 12,  1991 (commencement of
operations) through  June  30,  1992,  in  conformity  with  generally  accepted
accounting  principles.  These  financial  statements  and  financial highlights
(hereafter referred to as "financial statements") are the responsibility of  the
Trust's  management;  our  responsibility  is to  express  an  opinion  on these
financial statements  based on  our audits.  We conducted  our audits  of  these
financial  statements in  accordance with generally  accepted auditing standards
which require that we plan and perform the audit to obtain reasonable  assurance
about  whether the  financial statements are  free of  material misstatement. An
audit includes examining, on a test  basis, evidence supporting the amounts  and
disclosures  in the  financial statements,  assessing the  accounting principles
used and significant estimates  made by management,  and evaluating the  overall
financial  statement presentation.  We believe  that our  audits, which included
confirmation of securities  owned at June  30, 1994 by  correspondence with  the
custodian  and brokers,  provide a  reasonable basis  for the  opinion expressed
above.

PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York
August 4, 1994

                                       16
                    ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
<PAGE>
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST

       TWO WORLD TRADE CENTER, NEW YORK, NEW YORK 10048 - (212) 392-5000

    Active Assets Government Securities Trust (the "Government Securities Trust"
or  the  "Trust")  is  a  no-load,  diversified  open-end  management investment
company. The Trust is authorized to reimburse Dean Witter Distributors Inc.  for
specific  expenses incurred in promoting the  distribution of the Trust's shares
pursuant to a Plan of Distribution  pursuant to Rule 12b-1 under the  Investment
Company  Act of  1940, as  amended (the  "Act"). Reimbursement  may in  no event
exceed an amount equal to  payments at the annual rate  of 0.15% of the  average
daily net assets of the Trust.

    The investment objectives of the Trust are high current income, preservation
of  capital and liquidity.  The Trust will  seek to achieve  these objectives by
investing in  a diversified  portfolio of  short-term money  market  instruments
issued  or  guaranteed  by  the  United States  Government  or  its  agencies or
instrumentalities.

    AN INVESTMENT IN  THE TRUST IS  NEITHER INSURED NOR  GUARANTEED BY THE  U.S.
GOVERNMENT.  THERE IS  NO ASSURANCE THAT  THE TRUST  WILL BE ABLE  TO MAINTAIN A
STABLE NET ASSET VALUE OF $1.00 PER SHARE.

    SHARES OF THE  TRUST ARE NOT  DEPOSITS OR OBLIGATIONS  OF, OR GUARANTEED  OR
ENDORSED  BY, ANY BANK, AND THE SHARES  ARE NOT FEDERALLY INSURED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.

                               TABLE OF CONTENTS

<TABLE>
<S>                                                 <C>
Highlights/2                                        How Net Asset Value is Determined/A-4
Summary of Trust Expenses/3                         Confirmations/A-5
Financial Highlights/3                              The Trusts and Their Management/A-5
Investment Objectives and Policies/4                Plan of Distribution/A-6
Financial Statements/6                              Dividends, Distributions and Taxes/A-6
Report of Independent Accountants/10                General Information/A-9
Purchase and Redemption of Shares/A-1               Voting Rights/A-9
    Purchase of Shares/A-1                          Custodian/A-10
    Purchase of Shares by Non-Participants in       Shareholder Inquiries/A-10
      Active Assets Program/A-2
    Redemption of Shares/A-3
    Redemption of Shares by Non-Participants in
      Active Assets Program/A-4
</TABLE>

    THIS PROSPECTUS SETS FORTH CONCISELY THE INFORMATION YOU SHOULD KNOW  BEFORE
INVESTING  IN THE TRUST.  IT SHOULD BE  READ AND RETAINED  FOR FUTURE REFERENCE.
ADDITIONAL INFORMATION  ABOUT  THE  TRUST  IS  CONTAINED  IN  THE  STATEMENT  OF
ADDITIONAL  INFORMATION, DATED  AUGUST 22, 1994,  WHICH HAS BEEN  FILED WITH THE
SECURITIES AND EXCHANGE  COMMISSION, AND WHICH  IS AVAILABLE AT  NO CHARGE  UPON
REQUEST  OF THE  TRUST AT  THE ADDRESS  LISTED ABOVE  OR BY  CALLING DEAN WITTER
INTERCAPITAL  INC.  (THE  "INVESTMENT  MANAGER"  OR  "INTERCAPITAL")  AT   (212)
392-2550.  THE  STATEMENT OF  ADDITIONAL INFORMATION  IS INCORPORATED  HEREIN BY
REFERENCE.

    THE INFORMATION IN THIS  PROSPECTUS SHOULD BE READ  IN CONJUNCTION WITH  THE
INFORMATION APPEARING ELSEWHERE IN THIS DOCUMENT, INCLUDING THE APPENDIX HERETO,
WHICH IS PART OF THIS PROSPECTUS, AND IN THE DEAN WITTER CLIENT AGREEMENT.

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
       EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
           SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
               COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF
                   THIS PROSPECTUS. ANY REPRESENTATION TO THE
                        CONTRARY IS A CRIMINAL OFFENSE.
                            ------------------------

                THE DATE OF THIS PROSPECTUS IS AUGUST 22, 1994.
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
HIGHLIGHTS

<TABLE>
<S>                  <C>
THE                  A  no-load, open-end diversified management  investment company investing principally in
TRUST                short-term money market instruments issued or guaranteed by the United States Government
                     or its agencies or instrumentalities. The  Trust is authorized to reimburse Dean  Witter
                     Distributors  Inc. for specific  expenses incurred in promoting  the distribution of the
                     Trust's shares pursuant to a Plan of Distribution pursuant to Rule 12b-1 under the  Act.
                     (see  page A-6). The  Trust is organized  as an unincorporated  business trust under the
                     laws of Massachusetts. (see page A-5).
- ----------------------------------------------------------------------------------------------------------
SHARES               The shares of the Government Securities Trust are offered to participants in the  Active
OFFERED              Assets  program of Dean  Witter and to  non-participants who wish  to invest directly in
                     shares of the Trust (See page A-2). The primary components of the Active Assets  program
                     are  the Securities Account, which  is linked to the  Active Assets Insured Account, the
                     Active Assets  Money  Trust,  the  Active  Assets  Tax-Free  Trust,  the  Active  Assets
                     California  Tax-Free Trust or the Government Securities  Trust, and to the Visa Account.
                     See the Dean Witter Client Agreement for further information.
- ----------------------------------------------------------------------------------------------------------
PURCHASE             Pursuant to the Dean Witter Client Agreement between Dean Witter and the customer,  free
OF SHARES            credit  cash balances  in an  Active Assets  account will  automatically be  invested in
                     shares of the Government  Securities Trust daily  at their net  asset value without  any
                     sales  charge. Dean Witter Distributors Inc. is  the Distributor of shares of the Trust.
                     Investments in shares  are made under  the circumstances described  under "Purchase  and
                     Redemption  of Shares"  (see page  A-1). Non-participants  in the  Active Assets program
                     should refer to the discussion appearing at page A-2.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           High current income, preservation of capital and liquidity (see page 4). There can be no
OBJECTIVES           assurance that the Trust's investment objectives will be achieved.
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           A diversified portfolio of short-term money  market instruments issued or guaranteed  by
POLICY               the United States Government or its agencies or instrumentalities (see page 4).
- ----------------------------------------------------------------------------------------------------------
INVESTMENT           Dean Witter InterCapital Inc., the Investment Manager of the Trust, and its wholly-owned
MANAGER              subsidiary,  Dean Witter Services Company, Inc., serve in various investment management,
                     advisory, management and  administrative capacities to  eighty-six investment  companies
                     and other portfolios with assets under management of approximately $69.4 billion at June
                     30, 1994 (see page A-5).
- ----------------------------------------------------------------------------------------------------------
MANAGEMENT           Monthly  fee at an annual rate of 1/2 of  1% of average daily net assets, scaled down on
FEE                  assets over $500 million (see page A-5).
- ----------------------------------------------------------------------------------------------------------
DIVIDENDS            Automatically reinvested daily in additional shares at net asset value (see page A-6).
- ----------------------------------------------------------------------------------------------------------
REPORTS              Individual monthly account statements  from Dean Witter on  the Dean Witter  Transaction
                     Statement; annual and semi-annual Trust financial statements.
- ----------------------------------------------------------------------------------------------------------
REDEMPTION           For participants in the Active Assets program, shares of the Government Securities Trust
OF SHARES            will  be redeemed  at net  asset value  automatically to  satisfy debit  balances in the
                     securities account created by activity therein or  to satisfy amounts owing in the  Visa
                     Account  resulting from Visa card purchases, cash advances or checks written against the
                     Visa Account.  Non-participants  in  the  Active Assets  program  should  refer  to  the
                     discussion appearing at page A-4. It is anticipated that the net asset value will remain
                     constant  at $1.00  per share. Dean  Witter has  the right to  terminate a shareholder's
                     Active Assets service, in which event all  Trust shares held in a shareholder's  account
                     will  be involuntarily redeemed. The Trust also  reserves the right to reduce the number
                     of shares in all accounts if the  Trustees determine that this is necessary to  maintain
                     the  constant $1.00 per share  net asset value. See  "Purchase and Redemption of Shares"
                     (page A-1).
- ----------------------------------------------------------------------------------------------------------
RISKS                The  Trust  invests  principally  in  high  quality,  short-term  securities  issued  or
                     guaranteed by the U.S. Government or its agencies or instrumentalities which are subject
                     to  minimal risk of loss  of income and principal. However,  the investor is directed to
                     the discussion  under  the  captions  "Investment Objectives  and  Policies"  (page  4),
                     "Repurchase  Agreements"  (page 5),  and "When-Issued  and Delayed  Delivery Securities"
                     (page 5) concerning the risks associated  with such portfolio securities and  management
                     strategies.
- ----------------------------------------------------------------------------------------------------------
    THE  SUMMARY INFORMATION  ABOVE SHOULD  BE READ  IN CONJUNCTION  WITH THE  DETAILED INFORMATION APPEARING
ELSEWHERE IN THIS PROSPECTUS, INCLUDING THE APPENDIX HERETO,  IN THE DEAN WITTER CLIENT AGREEMENT AND IN  THE
TRUST'S STATEMENT OF ADDITIONAL INFORMATION, INCLUDING THE APPENDIX THERETO.
</TABLE>

                                       2

                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
SUMMARY OF TRUST EXPENSES
- --------------------------------------------------------------------------------
    The  following table illustrates all expenses and fees that a shareholder of
the Trust will incur. The expenses and fees  set forth in the table are for  the
fiscal year ended June 30, 1994.
<TABLE>
<CAPTION>
SHAREHOLDER TRANSACTION EXPENSES
- ----------------------------------------
<S>                                       <C>
Maximum Sales Charge Imposed on
 Purchases..............................     None
Maximum Sales Charge Imposed on
 Reinvested Dividends...................  None
Deferred Sales Charge...................  None
Redemption Fees.........................  None
Exchange Fee............................  None

<CAPTION>
ANNUAL TRUST OPERATING EXPENSES (AS A
 PERCENTAGE OF AVERAGE NET ASSETS)
- ----------------------------------------
<S>                                       <C>
Management Fees.........................    0.50%
12b-1 Fees..............................    0.10%
Other Expenses..........................    0.06%
                                          -------
Total Trust Operating Expenses..........    0.66%
                                          -------
                                          -------
</TABLE>

<TABLE>
<CAPTION>
                                                                          10
EXAMPLE                                   1 YEAR    3 YEARS   5 YEARS    YEARS
- ----------------------------------------  -------   -------   -------   -------
<S>                                       <C>       <C>       <C>       <C>
You would pay the following expenses on
 a $1,000 investment,
 assuming (1) 5% annual return and (2)
 redemption at the end
 of each time period:...................    $ 7       $21       $37       $82
</TABLE>

    Dean Witter charges an annual Active Assets program participation fee of $80
($100 for corporate participants). Shareholders of the Trust who are not program
participants will not be charged an Active Assets program fee.

    The  above  example should  not be  considered a  representation of  past or
future expenses or performance. Actual expenses  of the Trust may be greater  or
less than those shown.

    The  purpose of this  table is to  assist the investor  in understanding the
various costs and expenses that an investor  in the Trust will bear directly  or
indirectly.  For a  more complete description  of these costs  and expenses, see
pages A-5 and A-6 in the Appendix to this Prospectus.

FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
    The following per share data and  ratios for a share of beneficial  interest
outstanding  throughout each period  have been audited  by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in  conjunction
with  the financial statements  and notes thereto and  the report of independent
accountants which are contained in this Prospectus commencing on page 6.
<TABLE>
<CAPTION>
                                                               FOR THE YEAR ENDED JUNE 30,
                                          ---------------------------------------------------------------------
                                            1994        1993        1992        1991        1990        1989
                                          ---------   ---------   ---------   ---------   ---------   ---------
<S>                                       <C>         <C>         <C>         <C>         <C>         <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period...............................  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                          ---------   ---------   ---------   ---------   ---------   ---------
  Net investment income.................      0.027       0.027       0.043       0.065       0.077       0.079
  Less dividends from net investment
   income...............................     (0.027)     (0.027)     (0.043)     (0.065)     (0.077)     (0.079)
                                          ---------   ---------   ---------   ---------   ---------   ---------
  Net asset value, end of period........  $    1.00   $    1.00   $    1.00   $    1.00   $    1.00   $    1.00
                                          ---------   ---------   ---------   ---------   ---------   ---------
                                          ---------   ---------   ---------   ---------   ---------   ---------
TOTAL INVESTMENT RETURN.................       2.76%       2.71%       4.37%       6.72%       8.03%       8.20%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   thousands)...........................  $ 471,501   $ 508,582   $ 533,438   $ 597,098   $ 300,213   $ 243,631
  Ratio of expenses to average net
   assets...............................       0.66%       0.66%       0.68%       0.70%       0.68%       0.70%
  Ratio of net investment income to
   average net assets...................       2.72%       2.68%       4.28%       6.39%       7.74%       7.94%

<CAPTION>

                                            1988        1987        1986        1985
                                          ---------   ---------   ---------   ---------
<S>                                       <C>         <C>         <C>         <C>
PER SHARE OPERATING PERFORMANCE:
  Net asset value, beginning of
   period...............................  $    1.00   $    1.00   $    1.00   $    1.00
                                          ---------   ---------   ---------   ---------
  Net investment income.................      0.062       0.055       0.069       0.089
  Less dividends from net investment
   income...............................     (0.062)     (0.055)     (0.069)     (0.089)
                                          ---------   ---------   ---------   ---------
  Net asset value, end of period........  $    1.00   $    1.00   $    1.00   $    1.00
                                          ---------   ---------   ---------   ---------
                                          ---------   ---------   ---------   ---------
TOTAL INVESTMENT RETURN.................       6.41%       5.62%       7.10%       9.22%
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period (in
   thousands)...........................  $ 236,449   $ 177,053   $ 181,731   $ 159,906
  Ratio of expenses to average net
   assets...............................       0.68%       0.70%       0.71%       0.76%
  Ratio of net investment income to
   average net assets...................       6.22%       5.47%       6.85%       8.80%
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       3

                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
INVESTMENT OBJECTIVES AND POLICIES
- --------------------------------------------------------------------------------

    THE INVESTMENT OBJECTIVES OF THE TRUST ARE HIGH CURRENT INCOME, PRESERVATION
OF CAPITAL AND LIQUIDITY.

    The Trust seeks to  achieve its objectives by  investing in U.S.  Government
securities,  including a variety of securities which are issued or guaranteed by
the United States Treasury, by various agencies of the United States Government,
and by various instrumentalities which have been established or sponsored by the
United States Government,  and certain  interests in  the foregoing  securities.
Except  for U.S.  Treasury securities, these  obligations, even  those which are
guaranteed by Federal agencies or instrumentalities, may or may not be backed by
the "full faith and credit" of the United States. In the case of securities  not
backed by the full faith and credit of the United States, they may be backed, in
part,  by a line of credit with the  U.S. Treasury (such as the Federal National
Mortgage Association),  or  the  Trust  must  look  to  the  agency  issuing  or
guaranteeing  the obligation for  ultimate repayment (such  as securities of the
Federal Farm Credit System) in which case the Trust may not be able to assert  a
claim   against  the   United  States  itself   in  the  event   the  agency  or
instrumentality does not meet its commitments.

    Treasury securities  include  Treasury  bills,  Treasury  coupons,  Treasury
notes,  and Treasury bonds (including zero coupon bonds). Some of the Government
agencies and instrumentalities which issue  or guarantee securities include  the
Federal  Farm Credit System, the Federal Home  Loan Banks, the Federal Home Loan
Mortgage Corporation, the Government National Mortgage Association, the  Federal
National Mortgage Association, the Farmers Home Administration, the Federal Land
Banks,  the Small Business  Administration, the Export-Import  Bank, the Federal
Intermediate Credit Banks and the Banks for Cooperatives.

    The Trust may  invest in securities  issued or guaranteed  by any agency  or
instrumentality  established or sponsored by  the United States Government. Such
investments may  take  the  form  of participation  interests  in,  and  may  be
evidenced  by  deposit  or  safekeeping  receipts  for,  any  of  the foregoing.
Participation interests are  pro rata  interests in  U.S. Government  securities
held  by others such as  interests in pools of  mortgages sold by the Government
National Mortgage Association; instruments evidencing deposit or safekeeping are
documentary receipts for such original securities held in custody by others.

    The Federal Deposit  Insurance Corporation is  the administrative  authority
over  the  Bank Insurance  Fund and  the  Savings Insurance  Fund which  are the
agencies of  the U.S.  Government  which insure  (including both  principal  and
interest)  the deposits of certain banks and savings and loan associations up to
$100,000 per deposit. Current federal regulations also permit such  institutions
to issue insured negotiable certificates of deposit ("CDs") in principal amounts
of  $100,000  or more  without regard  to  the interest  rate ceilings  on other
deposits. To  remain  fully insured  as  to principal,  these  investments  must
currently  be limited to $100,000 per bank  or savings and loan association. The
interest on such investments is not insured. The Trust may invest in such CDs of
banks and  savings  and loan  institutions  having  total assets  of  less  than
$1,000,000,000,  limited to the  insured amount of  principal ($100,000) in each
case and limited with  regard to all  such CDs and all  illiquid assets, in  the
aggregate, to 10% of the Trust's total assets.

    The  Trust intends  normally to hold  its portfolio  securities to maturity.
Historically, securities  issued or  guaranteed by  the U.S.  Government or  its
agencies  and instrumentalities have involved minimal  risk of loss of principal
or interest, if held to maturity.

    The Trust may not borrow money, except from banks for temporary or emergency
purposes, including the  meeting of  redemption requests  which might  otherwise
require  the  untimely disposition  of securities.  Borrowing in  the aggregate,
including reverse repurchase agreements, may  not exceed 20%, and borrowing  for
purposes  other than meeting redemptions  may not exceed 5%  of the value of the
Trust's total  assets (including  the amount  borrowed), less  liabilities  (not
including

                                       4

                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
the amount borrowed) at the time the borrowing is made.

    The  investment  objectives and  policies stated  above  may not  be changed
without shareholder approval. There is no assurance that the Trust's  objectives
will be achieved.

PORTFOLIO MANAGEMENT

    REPURCHASE  AGREEMENTS.   The  Trust may  enter into  repurchase agreements,
which may  be viewed  as a  type  of secured  lending by  the Trust,  and  which
typically  involve the acquisition by the  Trust of government securities from a
selling financial institution such  as a bank, savings  and loan association  or
broker-dealer.  The  agreement provides  that the  Trust will  sell back  to the
institution, and that the institution  will repurchase, the underlying  security
("collateral") at a specified price and at a fixed time in the future. The Trust
will  accrue interest from the institution until the time when the repurchase is
to occur. Although such date is deemed by the Trust to be the maturity date of a
repurchase  agreement,  the  maturities  of  securities  subject  to  repurchase
agreements  are not subject to any limits  and may exceed thirteen months. While
repurchase  agreements  involve  certain   risks  not  associated  with   direct
investments in U.S. Government securities, the Trust follows procedures designed
to   minimize  such   risks.  These  procedures   include  effecting  repurchase
transactions only with  large, well capitalized  and well established  financial
institutions  and specifying the required value of the collateral underlying the
agreement.

    WHEN-ISSUED  AND  DELAYED  DELIVERY  SECURITIES.  The  Trust  may   purchase
securities  on  a  when-issued or  delayed  delivery basis;  i.e.,  delivery and
payment can take place a month or  more after the date of the transaction.  When
such  transactions are negotiated, the price is fixed at the time of commitment,
but delivery and payment can take place between one month and 120 days after the
date of the commitment. These securities  are subject to market fluctuation  and
no  interest accrues to the purchaser during  this period. At the time the Trust
makes the commitment to purchase securities on a when-issued or delayed delivery
basis, it will  record the transaction  and thereafter reflect  the value,  each
day, of such security in determining its net
asset value.

    All  the  foregoing  strategies may  subject  the  Trust to  the  effects of
interest rate  fluctuations  to  a  greater extent  than  would  occur  if  such
strategies  were not used. While such strategies listed above may be used by the
Trust if, in the opinion of the Investment Manager, they will be advantageous to
the Trust, the Trust will be free to reduce or eliminate its activity in any  of
these  areas  without  changing  its  fundamental  investment  policies. Certain
provisions of the Internal Revenue Code, related regulations, and rulings of the
Internal Revenue Service  may also  have the effect  of reducing  the extent  to
which  the  previously  cited  techniques  may  be  used  by  the  Trust, either
individually or in combination. Furthermore, there  is no assurance that any  of
these strategies or any other strategies and methods available to the Trust will
result in the achievement of its objectives.

    The  Trust  will  invest  in securities  of  varying  maturities  and risks,
although it will  not invest in  securities with an  effective maturity of  more
than  one year.  The Trust  will generally  not seek  profits through short-term
trading, although it may dispose of any portfolio security prior to maturity if,
on the basis of a revised evaluation or other circumstance or consideration, the
Investment Manager deems such disposition advisable.

    The Trust is expected  to have a  high portfolio turnover  due to the  short
maturities  of securities  purchased, but this  should not affect  income or net
asset value as brokerage commissions are not normally charged on the purchase or
sale of money market instruments such as U.S. Government obligations.

    BROKERAGE ALLOCATION.  Brokerage commissions are not normally charged on the
purchase  or  sale  of  money   market  instruments  such  as  U.S.   Government
obligations,  but such transactions may involve transaction costs in the form of
spreads between bid and asked prices. Pursuant to an order of the Securities and
Exchange Commission,  the Trust  may effect  principal transactions  in  certain
money  market instruments  with Dean  Witter. In  addition, the  Trust may incur
brokerage commissions on transactions conducted through Dean Witter.

                                       5

                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<CAPTION>
ASSETS:
<S>                                       <C>
Investments in securities, at value
  (amortized cost $471,776,079) (Note
  1)....................................  $ 471,776,079
Cash....................................            767
Interest receivable.....................            612
Prepaid expenses........................         63,591
                                          -------------
      TOTAL ASSETS......................    471,841,049
                                          -------------
LIABILITIES:
Payable for:
  Shares of beneficial interest
   repurchased..........................            100
  Investment management fee (Note 2)....        205,952
  Plan of distribution fee (Note 3).....         41,259
Accrued expenses (Note 4)...............         93,134
                                          -------------
      TOTAL LIABILITIES.................        340,445
                                          -------------
NET ASSETS:
Paid-in-capital.........................    471,500,030
Accumulated undistributed net investment
  income................................            574
                                          -------------
      NET ASSETS........................  $ 471,500,604
                                          -------------
                                          -------------
NET ASSET VALUE PER SHARE, 471,500,030            $1.00
  shares outstanding (unlimited shares    -------------
  authorized of $.01 par value).........  -------------
</TABLE>

  STATEMENT OF OPERATIONS
  FOR THE YEAR ENDED JUNE 30, 1994
- ------------------------------------------------

<TABLE>
<S>                                       <C>
INVESTMENT INCOME:
 INTEREST INCOME........................  $ 17,616,308
                                          ------------
 EXPENSES
  Investment management fee (Note 2)....     2,594,882
  Plan of distribution fee (Note 3).....       515,023
  Registration fees.....................       100,186
  Transfer agent fees and expenses......        84,378
  Professional fees.....................        32,832
  Trustees' fees and expenses (Note
   4)...................................        31,760
  Custodian fees........................        29,494
  Shareholder reports and notices.......        29,474
  Other.................................         7,773
                                          ------------
      TOTAL EXPENSES....................     3,425,802
                                          ------------
        NET INVESTMENT INCOME AND NET
         INCREASE IN NET ASSETS
         RESULTING FROM
         OPERATIONS.....................  $ 14,190,506
                                          ------------
                                          ------------
</TABLE>

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                             FOR THE         FOR THE
                                           YEAR ENDED      YEAR ENDED
                                          JUNE 30, 1994   JUNE 30, 1993
                                          -------------   -------------
<S>                                       <C>             <C>
INCREASE (DECREASE) IN NET ASSETS:
  Operations:
    Net investment income and net
     increase in net assets resulting
     from operations....................  $ 14,190,506    $ 14,662,140
  Dividends to shareholders from net
   investment income....................   (14,190,247)    (14,661,925)
  Net decrease from transactions in
   shares of beneficial interest (Note
   5)...................................   (37,081,813)    (24,855,698)
                                          -------------   -------------
      Total decrease....................   (37,081,554)    (24,855,483)
NET ASSETS:
  Beginning of period...................   508,582,158     533,437,641
                                          -------------   -------------
  END OF PERIOD (including undistributed
   net investment income of $574 and
   $315, respectively)..................  $471,500,604    $508,582,158
                                          -------------   -------------
                                          -------------   -------------
</TABLE>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       6
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1.  ORGANIZATION  AND ACCOUNTING POLICIES--Active  Assets Government  Securities
Trust  (the "Trust") is registered under the  Investment Company Act of 1940, as
amended (the "Act"), as a  diversified, open-end management investment  company.
It  was  organized as  a  Massachusetts business  trust  on March  30,  1981 and
commenced operations on July 7, 1981.

    The following is a summary of significant accounting policies:

    A.  VALUATION OF INVESTMENTS--Portfolio  securities are valued at  amortized
    cost, which approximates market value.

    B.   ACCOUNTING FOR INVESTMENTS--Security  transactions are accounted for on
    the trade date (date the order to buy or sell is executed). In computing net
    investment income,  the  Trust  amortizes  any  premiums  and  discounts  on
    securities  owned. Realized  gains and  losses on  security transactions are
    determined on the identified cost method.

    C.  FEDERAL INCOME TAX STATUS--It is  the Trust's policy to comply with  the
    requirements of the Internal Revenue Code applicable to regulated investment
    companies  and to distribute all of  its taxable income to its shareholders.
    Accordingly no federal income tax provision is required.

    D.  DIVIDENDS TO SHAREHOLDERS--Dividends to shareholders are recorded by the
    Trust as of the close of the Trust's business day.

    E.  REPURCHASE AGREEMENTS--The Trust's custodian takes possession on  behalf
    of  the  Trust  of  the collateral  pledged  for  investments  in repurchase
    agreements. It is the policy of the Trust to value the underlying collateral
    daily on  a mark-to-market  basis  to determine  that the  value,  including
    accrued  interest, is  at least equal  to the repurchase  price plus accrued
    interest. In the event of default of the obligation to repurchase, the Trust
    has the  right  to  liquidate  the collateral  and  apply  the  proceeds  in
    satisfaction of the obligation.

2.    INVESTMENT  MANAGEMENT  AGREEMENT--Pursuant  to  an  Investment Management
Agreement with Dean  Witter InterCapital  Inc. (the  "Investment Manager"),  the
Trust pays its Investment Manager a management fee, calculated daily and payable
monthly,  by applying the following annual rates  to the net assets of the Trust
determined as of the close of the Trust's business day: 0.50% of the portion  of
the  daily net assets not  exceeding $500 million; 0.425%  of the portion of the
daily net assets exceeding $500 million  but not exceeding $750 million;  0.375%
of  the portion of the daily net assets exceeding $750 million but not exceeding
$1 billion; 0.35% of the  portion of the daily  net assets exceeding $1  billion
but  not exceeding $1.5 billion;  0.325% of the portion  of the daily net assets
exceeding $1.5 billion but not exceeding $2 billion; 0.30% of the portion of the
daily net assets exceeding $2 billion but not exceeding $2.5 billion; and 0.275%
of the portion of the daily net assets exceeding $2.5 billion but not  exceeding
$3  billion;  and 0.25%  of the  portion of  the daily  net assets  exceeding $3
billion.

    Under the  terms of  the  Agreement, in  addition  to managing  the  Trust's
investments,  the Investment Manager maintains certain  of the Trust's books and
records  and  furnishes  office  space  and  facilities,  equipment,   clerical,
bookkeeping  and certain legal services, and pays the salaries of all personnel,
including officers of the Trust who are employees of the Investment Manager. The
Investment Manager also bears the cost of telephone services, heat, light, power
and other utilities provided to the Trust.

3.   PLAN  OF DISTRIBUTION--Shares  of  beneficial  interest of  the  Trust  are
distributed  by Dean Witter Distributors  Inc. (the "Distributor"), an affiliate
of  the   Investment  Manager.   The  Trust   has  entered   into  a   Plan   of

                                       7
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
Distribution  (the  "Plan"), pursuant  to  Rule 12b-1  under  the Act,  with the
Distributor whereby the  Distributor finances certain  activities in  connection
with the distribution of shares of the Trust.

    Under  the Plan,  the Distributor bears  the expense of  all promotional and
distribution related activities on behalf of the Trust, except for expenses that
the  Trustees  determine  to  reimburse,  as  described  below.  The   following
activities  and services may be provided by  the Distributor under the Plan: (1)
compensation  to   sales   representatives   of  the   Distributor   and   other
broker-dealers; (2) sales incentives and bonuses to sales representatives and to
marketing  personnel in connection with promoting  sales of shares; (3) expenses
incurred in  connection  with  promoting  sales of  shares;  (4)  preparing  and
distributing  sales literature;  and (5)  providing advertising  and promotional
activities, including direct mail solicitation and television, radio, newspaper,
magazine and other media advertisements.

    The Trust is authorized to  reimburse the Distributor for specific  expenses
the  Distributor incurs or plans  to incur in promoting  the distribution of the
Trust's shares. The amount of each monthly reimbursement payment may in no event
exceed an amount equal to a payment at  the average annual rate of 0.15% of  the
Trust's  average daily net assets during the  month. For the year ended June 30,
1994, the distribution fee  established by the Trustees  and accrued was at  the
average annual rate of 0.10%.

4.    SECURITY  TRANSACTIONS  AND  TRANSACTIONS  WITH  AFFILIATES--The  cost  of
purchases and the proceeds from sales/maturities of portfolio securities for the
year  ended  June  30,   1994  aggregated  $6,108,535,457  and   $6,162,603,679,
respectively.

    On  April 1, 1991, the Trust established an unfunded noncontributory defined
benefit pension plan  covering all independent  Trustees of the  Trust who  will
have  served as an  independent Trustee for at  least five years  at the time of
retirement. Benefits  under  this  Plan  are  based  on  years  of  service  and
compensation  during the last five years  of service. Aggregate pension cost for
the year ended June  30, 1994, included  in Trustees' fees  and expenses in  the
Statement of Operations, amounted to $10,198. At June 30, 1994, the Trust had an
accrued  pension liability of  $43,096 which is included  in accrued expenses in
the Statement of Assets and Liabilities.

    Dean Witter Trust Company,  an affiliate of the  Investment Manager and  the
Distributor,  is the  Trust's transfer  agent. At June  30, 1994,  the Trust had
transfer agent fees and expenses payable of approximately $9,900.

5.    SHARES  OF  BENEFICIAL  INTEREST--Transactions  in  shares  of  beneficial
interest, at $1.00 per share, were as follows:

<TABLE>
<CAPTION>
                                           FOR THE YEAR      FOR THE YEAR
                                               ENDED             ENDED
                                           JUNE 30, 1994     JUNE 30, 1993
                                          ---------------   ---------------
<S>                                       <C>               <C>
Shares sold.............................    1,898,931,530     1,936,859,703
Shares issued in reinvestment of
 dividends..............................       14,176,134        14,650,953
                                          ---------------   ---------------
                                            1,913,107,664     1,951,510,656
Shares repurchased......................   (1,950,189,477)   (1,976,366,354)
                                          ---------------   ---------------
Net decrease............................      (37,081,813)      (24,855,698)
                                          ---------------   ---------------
                                          ---------------   ---------------
</TABLE>

6.   SELECTED PER SHARE DATA AND RATIOS--See the "Financial Highlights" table on
page 3 of this prospectus.

                                       8
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
PORTFOLIO OF INVESTMENTS JUNE 30, 1994
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
PRINCIPAL                                               ANNUALIZED
 AMOUNT                                                   YIELD
   (IN                  DESCRIPTION AND                 ON DATE OF
THOUSANDS)               MATURITY DATE                   PURCHASE          VALUE
- ---------   ----------------------------------------  --------------   -------------
<C>         <S>                                       <C>              <C>
U.S. GOVERNMENT OBLIGATION (3.2%)
$  15,000   U.S. Treasury Bill
            (Amortized Cost $14,954,738)
            8/04/94.................................      3.25%        $  14,954,738
                                                                       -------------
U.S. GOVERNMENT AGENCIES (95.8%)
  122,070   Federal Farm Credit Bank
            7/06/94 to 12/04/94.....................   3.77 to 4.72      121,573,061
   75,770   Federal Home Loan Banks
            7/20/94 to 9/20/94......................   3.99 to 4.49       75,330,654
   12,000   Federal Home Loan Mortgage Corp.
            8/15/94.................................       4.26           11,936,550
  166,400   Federal National Mortgage Association
            7/08/94 to 12/16/94.....................   3.24 to 5.04      165,174,520
   26,000   Student Loan Marketing Association
            7/26/94 to 9/08/94......................   4.28 to 4.44       25,868,444
   51,890   Tennessee Valley Authority
            7/18/94 to 8/01/94......................   4.26 to 4.47       51,750,112
                                                                       -------------
            TOTAL U.S GOVERNMENT AGENCIES (AMORTIZED COST
              $451,633,341).........................................     451,633,341
                                                                       -------------
REPURCHASE AGREEMENT (1.1%)
    5,188   Dillon Read & Co. 7/1/94
            [dated 6/30/94; proceeds $5,188,612
              collateralized by $4,900,000 United
              States Treasury Bonds 8 1/8% due
              8/15/94 valued at $5,292,000]
            (Amortized Cost $5,188,000).............       4.25            5,188,000
                                                                       -------------
</TABLE>

<TABLE>
<S>                                                 <C>             <C>
TOTAL INVESTMENTS (AMORTIZED COST
$471,776,079)(A)..................................         100.1 %    471,776,079
LIABILITIES IN EXCESS OF CASH AND OTHER ASSETS....          (0.1 )       (275,475)
                                                           -----    -------------
NET ASSETS........................................         100.0 %  $ 471,500,604
                                                           -----    -------------
                                                           -----    -------------
<FN>
- ---------
(A) COST IS THE SAME FOR FEDERAL INCOME TAX PURPOSES.
</TABLE>

                       See Notes to Financial Statements

                                       9
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------

To the Shareholders and Trustees of Active Assets Government Securities Trust

In our opinion, the accompanying statement of assets and liabilities,  including
the  portfolio of investments,  and the related statements  of operations and of
changes in  net assets  and the  financial highlights  (which appear  under  the
heading  "Financial Highlights" on page 3 of this Prospectus) present fairly, in
all material  respects,  the  financial position  of  Active  Assets  Government
Securities  Trust (the "Trust") at June 30,  1994, the results of its operations
for the year then ended, the changes in its net assets for each of the two years
in the period then ended and the financial highlights for each of the ten  years
in  the  period then  ended, in  conformity  with generally  accepted accounting
principles. These  financial  statements  and  financial  highlights  (hereafter
referred  to as  "financial statements") are  the responsibility  of the Trust's
management; our  responsibility is  to  express an  opinion on  these  financial
statements  based  on our  audits. We  conducted our  audits of  these financial
statements in  accordance  with  generally  accepted  auditing  standards  which
require  that we plan and perform the audit to obtain reasonable assurance about
whether the financial  statements are  free of material  misstatement. An  audit
includes  examining,  on  a  test basis,  evidence  supporting  the  amounts and
disclosures in  the financial  statements, assessing  the accounting  principles
used  and significant estimates  made by management,  and evaluating the overall
financial statement presentation.  We believe  that our  audits, which  included
confirmation  of securities  owned at June  30, 1994 by  correspondence with the
custodian, provide a reasonable basis for the opinion expressed above.

PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York
August 4, 1994

                                       10
                   ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
<PAGE>
                                    APPENDIX

    THIS  APPENDIX CONSTITUTES  PART OF  THE PROSPECTUSES  OF THE  ACTIVE ASSETS
MONEY TRUST (THE "MONEY TRUST"), THE ACTIVE ASSETS TAX-FREE TRUST (THE "TAX-FREE
TRUST"), THE ACTIVE ASSETS CALIFORNIA  TAX-FREE TRUST (THE "CALIFORNIA  TAX-FREE
TRUST")  AND  THE ACTIVE  ASSETS  GOVERNMENT SECURITIES  TRUST  (THE "GOVERNMENT
SECURITIES TRUST"). THE MONEY TRUST, THE TAX-FREE TRUST, THE CALIFORNIA TAX-FREE
TRUST AND  THE GOVERNMENT  SECURITIES TRUST  ARE REFERRED  TO IN  THIS  APPENDIX
COLLECTIVELY  AS THE "TRUSTS".  UNLESS OTHERWISE INDICATED,  THE INFORMATION SET
FORTH HEREIN IS APPLICABLE TO EACH TRUST.

PURCHASE AND REDEMPTION OF SHARES
- --------------------------------------------------------------------------------

PURCHASE OF SHARES

    The shares of the  Trusts are offered to  participants in the Active  Assets
financial  service program (non-participants see  below). Persons subscribing to
the program  will have  the free  credit cash  balances in  their Active  Assets
securities  account invested in  shares of the Money  Trust, the Tax-Free Trust,
the California Tax-Free Trust or the Government Securities Trust or deposited in
the Active  Assets  Insured Account  (a  Federal Deposit  Insurance  Corporation
insured  bank  account),  depending  upon  which  investment  vehicle  has  been
designated by the participant. For  further information consult the Dean  Witter
Client Agreement.

    Purchases  of shares of the Trusts by program participants will be made only
pursuant to the Active Assets automatic purchase procedures described below.

    Subscribers to  Active  Assets  services  have  the  option  to  change  the
designation  of their Trust at  any time by notifying  their Dean Witter Account
Executive.

    The purchase price for shares of the Trusts is the net asset value per share
next determined after receipt by  a Trust of a  purchase order, pursuant to  the
Active  Assets program, in proper form. The Trusts anticipate that the net asset
value will remain constant at $1.00 per share and that any fluctuations in value
will be reflected in the daily dividend  or in the number of outstanding  shares
in  the shareholder's account rather than in the per share dollar value. The net
asset value is determined at  12 noon, New York time,  on each day that the  New
York   Stock  Exchange  is  open  for  business,  immediately  after  the  daily
declaration of dividends or  on each other  day in which  there is a  sufficient
degree of trading in the Trust's portfolio securities that the current net asset
value of the Trust's shares might be materially affected by changes in the value
of  such portfolio securities, but only if on any such day the Trust is required
by the  provisions of  the Active  Assets program  to purchase  or redeem  Trust
shares or receives a request from a non-participant in the Active Assets program
to  purchase or redeem  shares of the  Trust. Shares purchased  will receive the
next dividend declared after  such shares are issued  which will be  immediately
prior  to the 12 noon pricing on the following business day. The net asset value
per share will not be  determined on Good Friday and  on such other federal  and
non-federal holidays as are observed by the New York Stock Exchange.

    A  purchase order will not be effective until Federal funds become available
to the  Trusts. Federal  funds are  a commercial  bank's deposits  in a  Federal
Reserve  Bank and can be  transferred from one member  bank's account to that of
another member bank on the  same day and thus  are considered to be  immediately
available  funds. There  are no minimum  investment requirements  for the Trusts
(with the exception of non-participants in the Active Assets Program--see below)
although the  minimum requirement  for entry  in the  Active Assets  program  is
currently  $10,000 in cash and/or securities.  Dean Witter reserves the right to
alter or

                                      A-1
<PAGE>
waive the conditions upon which an Active Assets account may be opened.

    Free credit  cash  balances  held  in  an  Active  Assets  account  will  be
automatically  invested daily in shares of  either the Money Trust, the Tax-Free
Trust, the California Tax-Free  Trust or the Government  Securities Trust, if  a
Trust  has been selected for investment by the participant, on each business day
on which the New York Stock Exchange is open. Free credit cash balances will  be
invested in shares at the price next determined, which is 12 noon New York time,
on  the next business day following the credit of any such amounts to the Active
Assets account. Free credit balances arising from a cash payment into an  Active
Assets  account  shall be  so invested  unless  such payment  is made  after the
cashiering deadline of the Dean Witter office  in which the payment is made,  in
which  case the resulting  free credit balance  shall be invested  on the second
following business day  and the  investor will  not receive  the daily  dividend
which  would have been received had such balance been invested in the designated
Trust. An Active Assets participant desiring to make such a cash payment  should
contact  his or her Dean Witter Account Executive for information concerning the
local  office's  cashiering  deadline,  which  is  dependent  on  such  office's
arrangements with its commercial banks.

    Each  Trust  has  entered into  a  Distribution Agreement  with  Dean Witter
Distributors Inc. (the "Distributor"), an  affiliate of InterCapital, which  has
its  principal executive offices at  Two World Trade Center,  New York, New York
10048. The  Distribution  Agreements obligate  the  Distributor to  pay  certain
expenses  in connection with the offering of the shares of the Trusts, including
costs involved  in the  distribution  of prospectuses  and periodic  reports  to
investors,  other supplementary sales literature and advertising costs. However,
costs and expenses incurred by the  Distributor may be reimbursed by the  Trusts
pursuant  to the provisions of the  respective Plans of Distribution pursuant to
Rule 12b-1 (see page A-6).

    From time to time, certain state administrative agencies may raise questions
as to whether  the operation of  the Active Assets  program constitutes  banking
under  the laws of  their state. In  addition, legislation has  been proposed in
certain states which,  if enacted, could  require a modification  of the  Active
Assets  program in those states.  The Distributor and Dean  Witter are not banks
and believe that the operation of the Active Assets program does not  constitute
banking  under the laws of any state.  The Distributor and Dean Witter intend to
fully contest and resist any regulatory or legislative challenges to the  Active
Assets  program.  Final adverse  rulings  in any  state  that the  Active Assets
program constitutes unauthorized banking therein or the adoption of  legislation
by  any state  affecting the  Active Assets  program could  force the  Trusts to
liquidate shares of residents in such state or to cease offering their shares in
such state as part of the Active Assets program.

PURCHASE OF SHARES BY NON-PARTICIPANTS IN ACTIVE ASSETS PROGRAM

    Shares of the  Trusts may  be purchased by  investors maintaining  brokerage
accounts  with Dean Witter  who choose not  to participate in  the Active Assets
program. Shareholders  of the  Trusts  not participating  in the  Active  Assets
program  will not  be charged  a program fee.  The minimum  initial purchase for
non-participants is  $5,000  and  the minimum  subsequent  purchase  is  $1,000.
Non-participants  in the  Active Assets program  who are  participating in other
brokerage account programs with  Dean Witter may  have different initial  and/or
subsequent purchase minimum accounts, and may make share purchases automatically
through their account programs. Dean Witter account holders should contact their
account executive for further information concerning methods of purchase.

    The  Trusts have been created for the  purpose of serving as investments for
participants in the  Active Assets program  and, as such,  do not in  themselves
offer  such typical  money market  fund features  as check  writing and exchange
privileges. There  are other  money  market funds,  including funds  managed  by
InterCapital,  which have investment objectives similar  to the Trusts and which
offer check writing and  exchange privileges. Prior to  making an investment  in
any such money market fund, an investor should obtain and read the prospectus.

                                      A-2
<PAGE>
REDEMPTION OF SHARES

    Each  Trust is required to redeem for cash all full and fractional shares of
the Trust. The redemption price is the net asset value per share next determined
after  receipt  by  Dean  Witter   Trust  Company  (the  "Transfer  Agent")   of
instructions  from Dean  Witter in accordance  with the  automatic procedure set
forth below  (non-participants in  the Active  Assets program  see below).  Such
instructions  are delivered to the Transfer  Agent prior to the determination of
net asset value at 12 noon,  New York time, on any  day that the New York  Stock
Exchange  is  open for  business,  or on  each  other day  in  which there  is a
sufficient degree  of  trading in  the  Trust's portfolio  securities  that  the
current  net asset value of  the Trust's shares might  be materially affected by
changes in the value of such portfolio  securities, but only if on any such  day
the Trust is required by the provisions of the Active Assets program to purchase
or  redeem Trust shares. Payment of the  redemption proceeds will be made on the
same day  the  redemption  becomes effective.  Shareholders  will  receive  upon
redemption all dividends declared and reinvested until the time of redemption.

    Redemption  will be automatically  effected by Dean  Witter to satisfy debit
balances in the  Securities Account created  by activity therein  or to  satisfy
debit  balances created by  Visa credit card purchases,  cash advances or checks
written  against  the  Visa  Account.   Each  Active  Assets  account  will   be
automatically  scanned  for debits  each business  day that  the New  York Stock
Exchange is open for business as of the close of business on that day, and after
application of any free credit  cash balances in the  account to such debits,  a
sufficient  number of Trust shares owned  by the Active Assets participants will
be redeemed  at 12  noon the  following business  day to  satisfy any  remaining
debits  in either the Securities Account or  the Visa Account. Margin loans will
be utilized  to satisfy  debits remaining  after the  liquidation of  all  Trust
shares in an Active Assets participant's account and shares may not be purchased
until all debits and margin loans in the account are satisfied. Dean Witter (not
the  Trusts) may impose a fee for the use of the Visa credit card to obtain cash
advances.

    The right to receive payment with respect to any redemption may be suspended
by each Trust for a period of up  to seven days. Suspensions of more than  seven
days  may not be  made except (1) for  any period (a) during  which the New York
Stock Exchange is closed  other than customary weekend  and holiday closings  or
(b)  during which trading on the New  York Stock Exchange is restricted; (2) for
any period during which an emergency exists as a result of which (a) disposal by
the
Trust of securities owned by it is  not reasonably practicable or (b) it is  not
reasonably  practicable for the Trust  to fairly determine the  value of its net
assets; or (3) for such other periods as the Securities and Exchange  Commission
may  by order permit  for the protection  of security holders  of the Trust. The
Commission shall by rules and  regulations determine the conditions under  which
(i)  trading shall  be deemed to  be restricted  and (ii) an  emergency shall be
deemed to exist within  the meaning of  clause (2) above.  At various times  the
Trusts  may be requested to redeem shares with respect to which good payment has
not yet been  received by the  Distributor. A Trust  may delay, or  cause to  be
delayed,  the  payment of  the redemption  proceeds  until such  time as  it has
assured itself that  good payment has  been collected for  the purchase of  such
shares.  In addition,  where the  shares to be  redeemed have  been purchased by
check (including  a certified  or bank  cashier's check),  automatic and  manual
redemptions  may be delayed for the minimum time needed to verify that the check
used for investment has been honored (not  more than fifteen days from the  time
of receipt of the check).

    The  total value  of a shareholder's  investment in  a Trust at  the time of
redemption may be more or less than his  or her cost, depending on the value  of
the securities held by the Trust at such time and income earned.

    If  a participant wishes to reduce or eliminate his or her investment in the
Trust shares component of the Active Assets program, he or she should first call
the Active  Assets information  number shown  on the  cover page  preceding  the
Active  Assets Money Trust  Prospectus, to ascertain  the balance in  his or her
Trust Account. He  or she  may then  withdraw an amount  equal to  the value  of

                                      A-3
<PAGE>
such  shares, less any charges  pending in his or  her Active Assets account, in
any of the following ways:

    (a) by writing a check against the Visa Account in such amount;

    (b) by obtaining  a cash advance  from a Visa  participating bank or  branch
        thereof  for such amount (which the bank may limit to $5,000 per account
        per day); or

    (c) by calling  his or her  Dean Witter Account  Executive and requesting  a
        cash disbursement from the Active Assets program for such amount.

    In  any of the above methods, the Trust share balance at any time is subject
to reduction due to prior debits against the participant's account. Accordingly,
if payment  is requested  through the  Visa Account  check or  the cash  advance
methods and if any other debits are paid by automatic redemption of Trust shares
prior  to the time  the check or  cash advance charge  is presented for payment,
then the Trust share  balance will be  reduced. If so, payment  of the check  or
cash  advance may be paid  in part from the margin  loan value of the Securities
Account or may result in an overdraft. In addition, Dean Witter (not the Trusts)
may impose a fee for the checkwriting service on certain Active Assets accounts.

    Under the Active  Assets program,  both Dean Witter  and Bank  One have  the
right  to terminate an Active Assets account  for any reason. In such event, all
shares held in a shareholder's account will be redeemed.

REDEMPTION OF SHARES BY NON-PARTICIPANTS IN ACTIVE ASSETS PROGRAM

    Shareholders who are not participating  in the Active Assets program  should
contact  Dean Witter, through his  or her account executive,  on any day the New
York Stock Exchange is open, to effect a redemption of shares of the Trust.  All
such  redemption  requests will  be promptly  forwarded  to the  Transfer Agent;
redemption requests should not  be sent directly to  the Trusts or the  Transfer
Agent.  If such requests are inadvertently sent  to the Trust or Transfer Agent,
they will  be  forwarded to  the  Distributor.  Cash proceeds  from  the  manual
redemption of Trust shares ordinarily will be credited to the shareholder's Dean
Witter  brokerage account or, on  request, will be mailed  to the shareholder at
his or her address of record. In certain instances, as where redemption requests
are received in writing, such  redemption requests will require written  notices
containing  the  signatures  of  all  persons  in  whose  name  the  shares  are
registered,  or  additional  documents  such  as,  but  not  limited  to,  trust
instruments,  death certificates, appointments as  executor or administrator, or
certificates of  corporate  authority.  Non-participants in  the  Active  Assets
program  who are  participating in  other brokerage  account programs  with Dean
Witter may effect redemption of shares  automatically, as provided for in  their
account  program.  Dean  Witter  account holders  should  contact  their account
executive for further information concerning methods of redemption.

HOW NET ASSET VALUE IS DETERMINED

    The net asset value per share of each Trust, for the purpose of  calculating
the  price  at  which shares  are  issued  and redeemed,  is  determined  by the
Investment Manager as of  12 noon New York  time on each day  that the New  York
Stock  Exchange is open for business, immediately after the daily declaration of
dividends. Each Trust will also calculate such price on each other day in  which
there  is a sufficient  degree of trading in  that Trust's portfolio securities,
such that the current net asset value of the Trust's shares might be  materially
affected  by changes in the  value of such portfolio  securities, but only if on
any such  day the  Trust is  required by  the provisions  of the  Active  Assets
program  to  purchase  or redeem  Trust  shares  or receives  a  request  from a
non-participant in the Active Assets program to purchase or redeem Trust shares.
The determination of net asset  value is made by  subtracting from the value  of
the  assets of a Trust the amount of its liabilities, and dividing the remainder
by the number of outstanding shares of the Trust.

    The Trusts  utilize the  amortized cost  method in  valuing their  portfolio
securities,  even though  the portfolio securities  may increase  or decrease in
market value, generally, in regards to changes in interest rates. The  amortized
cost method of
valua-

                                      A-4
<PAGE>
tion involves valuing a security at its cost adjusted by a constant amortization
to  maturity of any original issue discount or premium, regardless of the impact
of fluctuating interest rates on the market value of the instrument. The purpose
of this method of calculation is to facilitate the maintenance of a constant net
asset value per share of  $1.00, although there is  no assurance that the  $1.00
net asset value will be maintained.

CONFIRMATIONS

    All  purchases and  redemptions of  Trust shares  and dividend reinvestments
will be confirmed monthly to the  shareholder (rounded to the nearest share)  in
the Active Assets Account Statement. Dean Witter has received an exemptive order
from the Securities and Exchange Commission which permits it to omit sending out
more frequent confirmations with respect to purchases and redemptions.

    In  the interest  of economy  and convenience  and because  of the operating
procedures of the Trusts, certificates representing the Trusts' shares will  not
be  physically  issued. Shares  are  maintained by  the  Trusts on  the register
maintained by the  Transfer Agent  and the holders  thereof will  have the  same
rights  of ownership  with respect  to such shares  as if  certificates had been
issued.

THE TRUSTS AND THEIR MANAGEMENT
- --------------------------------------------------------------------------------

    Money Trust,  Tax-Free  Trust,  California  Tax-Free  Trust  and  Government
Securities  Trust are  all no-load,  open-end diversified  investment management
companies. Money  Trust, Tax-Free  Trust and  Government Securities  Trust  were
organized under the laws of the Commonwealth of Massachusetts as business trusts
on March 30, 1981. California Tax-Free Trust was organized under the laws of the
Commonwealth of Massachusetts as a business trust on July 10, 1991.

    InterCapital,  located at Two World Trade  Center, New York, New York 10048,
is  the  Trusts'   Investment  Manager.  The   Investment  Manager,  which   was
incorporated  in July, 1992,  is a wholly-owned subsidiary  of Dean Witter. Dean
Witter is a wholly-owned subsidiary of  Dean Witter, Discover & Co. ("DWDC"),  a
balanced  financial services organization providing  a broad range of nationally
marketed credit and investment products.

    InterCapital and its wholly-owned  subsidiary, Dean Witter Services  Company
Inc.,   serve  in  various  investment   management,  advisory,  management  and
administrative capacities to eighty-six  investment companies (the "Dean  Witter
Funds"),  thirty  of which  are  listed on  the  New York  Stock  Exchange, with
combined assets of approximately $67.4 billion at June 30, 1994. The  Investment
Manager  also  manages  portfolios  of  pension  plans,  other  institutions and
individuals which aggregated approximately $2 billion at such date.

    The Trusts have  retained the Investment  Manager to provide  administrative
services,  manage its business  affairs and manage the  investment of the Fund's
assets, including the placing of orders  for the purchase and sale of  portfolio
securities.  InterCapital  has retained  Dean  Witter Services  Company  Inc. to
perform the aforementioned administrative services for the Fund.

    The Trusts' Trustees review the various services provided by the  Investment
Manager  to ensure that the Trusts' general investment policies and programs are
being properly carried out and  that administrative services are being  provided
to the Trusts in a satisfactory manner.

                                      A-5
<PAGE>
    As full compensation for the services and facilities furnished to the Trusts
and expenses of the Trusts assumed by the Investment Manager, the Trusts pay the
Investment   Manager  monthly  compensation  calculated   daily  by  applying  a
percentage rate to the daily net assets  of each of the respective Trusts  which
declines  as net assets of the Trusts reach specified levels (up to $3 billion).
For the fiscal years ended June 30, 1994, the Trusts accrued total  compensation
to  the Investment  Manager amounting  to 0.33%  (Money Trust),  0.42% (Tax-Free
Trust), 0.50%  (California  Tax-Free  Trust) and  0.50%  (Government  Securities
Trust)  of the respective Trusts' average daily net assets and the Trusts' total
expenses  amounted  to  0.51%  (Money  Trust),  0.56%  (Tax-Free  Trust),  0.68%
(California  Tax-Free  Trust) and  0.66%  (Government Securities  Trust)  of the
respective Trusts' average daily net assets.

PLAN OF DISTRIBUTION

    Each Trust has adopted a Plan  of Distribution pursuant to Rule 12b-1  under
the  Act. Under the respective Plans, the Distributor has expanded the nature of
its promotional activities on behalf of the respective Trusts and uses its  best
efforts to foster additional sales of Trust shares. The respective Plans provide
that  the  Distributor  bear the  expense  of all  promotional  and distribution
related activities on behalf of the respective Trusts, except for expenses  that
the  respective  Trustees  determine  to  reimburse,  as  described  below.  The
following activities and services may be  provided by the Distributor under  the
respective  Plans: (1) compensation to sales  representatives of Dean Witter and
other broker-dealers; (2) sales incentives and bonuses to sales  representatives
and  to marketing personnel in connection with  promoting sales of shares of the
Trusts; (3) expenses incurred  in connection with promoting  sales of shares  of
the  Trusts; (4) preparing and distributing  sales literature; and (5) providing
advertising and promotional activities,  including direct mail solicitation  and
television,   radio,  newspaper,   magazine  and   other  media  advertisements.
Reimbursements for these services are made in monthly payments by each Trust  at
the  annual rate of  up to 0.15  of 1% of  the average daily  net assets of each
Trust. Such  payments  were made  by  Money Trust,  Tax-Free  Trust,  California
Tax-Free  Trust and Government Securities Trust at the annual rate of 0.10 of 1%
of each Trust's average daily net assets for their respective fiscal years ended
June 30,  1994. Dean  Witter  account executives  are  paid an  annual  residual
commission,  currently a gross residual of up to 0.10 of 1% of the current value
of the respective accounts of which they are the account executive of record. In
addition, some Dean Witter sales personnel will receive non-cash compensation in
the form of  trips to educational  and/or business seminars  and merchandise  as
special  sales incentives. Expenses incurred by  the Distributor pursuant to the
Plans in any fiscal year  will not be reimbursed  by any Trust through  payments
accrued in any subsequent fiscal year.

    Each  Trust's  expenses  include:  the Investment  Management  fee;  the fee
pursuant to the  Plan of Distribution  (see "Purchase of  Fund Shares");  taxes;
certain  legal, transfer  agent, custodian and  auditing fees;  and printing and
other expenses  relating  to the  Trust's  operations which  are  not  expressly
assumed by the Investment Manager under its Investment Management Agreement with
each Trust.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

DIVIDENDS AND DISTRIBUTIONS

    Each  Trust  declares dividends,  payable  on each  day  the New  York Stock
Exchange is open for business, of all  of its daily net investment income  (and,
with  respect to  Money Trust  and Government  Securities Trust,  net short-term
capital gains, if any) to shareholders of record as of 12 noon New York time  of
the  preceding  business  day. With  respect  to Tax-Free  Trust  and California
Tax-Free Trust, dividends  from net short-term  capital gains, if  any, will  be
paid  periodically. The amount of dividend may fluctuate from day to day and may
be

                                      A-6
<PAGE>
omitted on some  days if net  realized losses on  portfolio securities exceed  a
Trust's  net investment income. Dividends  are automatically reinvested daily in
additional full and  fractional shares of  a Trust  at the net  asset value  per
share determined at 12 noon, New York time on that day.

    Each Trust intends to distribute dividends from net long-term capital gains,
if  any, at least once each year. A Trust may, however, elect to retain all or a
portion of any net long-term capital gains in any year for reinvestment.

    Dean Witter will send to  each shareholder a monthly  summary of his or  her
account,  including information as  to dividends reinvested,  on the Dean Witter
Transaction Statement.

TAXES

    Because  the  Trusts  currently  intend  to  distribute  all  of  their  net
investment  income and net capital gains, if  any, to shareholders and intend to
otherwise comply with all the provisions of Subchapter M of the Internal Revenue
Code, as amended (the "Code"), to qualify as regulated investment companies,  it
is not expected that the Trust will be required to pay any federal income tax.

    To  avoid  being  subject  to  a  31%  federal  withholding  tax  on taxable
dividends,  capital   gains   distributions   and   proceeds   of   redemptions,
shareholders' taxpayer identification numbers must be furnished and certified as
to accuracy.

    MONEY TRUST AND GOVERNMENT SECURITIES TRUST. Distributions of net investment
income  and realized net short-term capital gains are taxable to shareholders as
ordinary income, whether such distributions are  taken in cash or reinvested  in
additional shares. Distributions of long-term capital gains, if any, are taxable
as  long-term capital gains, regardless  of how long the  shareholder has held a
Trust's shares. No portion of such  dividends or distributions will be  eligible
for the federal dividends received deduction for corporations. The Trusts advise
their shareholders annually as to the federal income tax status of distributions
paid during each calendar year.

    TAX-FREE  TRUST AND CALIFORNIA TAX-FREE TRUST.  The Trusts intend to qualify
to pay "exempt-interest dividends"  to their shareholders  by maintaining as  of
the  close of each quarter of  their taxable year, at least  50% of the value of
their  total  assets  in  tax-exempt  securities.  If  a  Trust  satisfies  such
requirement, dividends from net investment income to shareholders, whether taken
in  cash or reinvested in additional Trust shares, will be excludable from gross
income for federal  income tax  purposes to the  extent net  interest income  is
represented  by interest on tax-exempt securities. Exempt-interest dividends are
included, however, in  determining what portion,  if any, of  a person's  Social
Security benefits are subject to federal income tax.

    The  Code  now subjects  interest received  on certain  otherwise tax-exempt
securities to an alternative minimum  tax. This alternative minimum tax  applies
to interest received on "private activity bonds" (in general, bonds that benefit
non-government  entities) issued after August 7, 1986 which, although tax-exempt
are used for purposes other than those generally performed by governmental units
(e.g., bonds used for commercial or  housing purposes). Income received on  such
bonds  is classified as  a "tax preference item",  under the alternative minimum
tax, for  both  individual and  corporate  investors.  A portion  of  a  Trust's
investments may be made in such "private activity bonds," with the result that a
portion  of the exempt-interest dividends paid by a Trust will be an item of tax
preference to shareholders subject to the alternative minimum tax. In  addition,
certain  corporations which are subject to  the alternative minimum tax may have
to  include  a  portion  of  exempt-interest  dividends  in  calculating   their
alternative  minimum taxable  income in  situations where  the "adjusted current
earnings" of  the  corporation  exceeds its  preadjustment  alternative  minimum
taxable income.

    Under  California law, an investment company  which qualifies as a regulated
investment company

                                      A-7
<PAGE>
must have at least 50% of the  value of its total assets invested in  California
state  and local issues or in obligations of  the United States which if held by
an individual, would pay  interest excludable from income  (or in a  combination
thereof),   at  the  end  of   each  quarter  of  its   taxable  year  in  order
to be eligible to pay dividends which will be
exempt from California personal income tax.
Shareholders of California Tax-Free Trust who are California residents will  not
incur  any federal  or California  income tax  on the  amount of exempt-interest
dividends received by them from the Trust and derived from California state  and
local issues or certain United States issues whether taken in cash or reinvested
in  additional  shares  to  the  extent that  such  dividends  are  derived from
California securities.

    Within 60 days after  the end of  its fiscal year, the  Trusts will mail  to
shareholders  statements indicating the percentage of the dividend distributions
for such  fiscal  year  which  constitutes  exempt-interest  dividends  and  the
percentage,  if any, that is taxable, and the percentage, if any, of the exempt-
interest dividends which constitutes an item of tax preference. This  percentage
should  be applied uniformly to any distributions made during the fiscal year to
determine the proportion  of dividends  that is tax-exempt.  The percentage  may
differ  from  the  percentage  of  tax-exempt  dividend  distributions  for  any
particular month.

    Unlike federal  law,  no  portion  of  the  exempt-interest  dividends  will
constitute  an  item  of  tax  preference  for  California  personal  income tax
purposes. Moreover, unlike federal law, an individual's Social Security benefits
are not  subject to  California personal  income  tax, so  that the  receipt  of
California  exempt-interest dividends (from the  California Tax-Free Trust) will
have no effect on an individual's California personal income tax.

    Shareholders will normally  be subject  to federal  and California  personal
income  tax  on  dividends  paid  from  interest  income  derived  from  taxable
securities and on distributions of net capital gains, if any. For federal income
tax purposes, distributions of long-term capital  gains, if any, are taxable  to
shareholders  as long-term capital  gains, regardless of  how long a shareholder
has held a Trust's shares and regardless of whether the distribution is received
in additional shares or  cash. In addition, for  California personal income  tax
purposes,  the shareholders of the California Tax-Free Trust will not be subject
to tax, or receive a credit for tax paid by the Trust, on undistributed  capital
gains,  if any. With  respect to the  Tax-Free Trust, the  exemption of interest
income for federal income tax purposes does not necessarily result in  exemption
under the income or other tax laws of any state or local taxing authority. Thus,
shareholders  of  the  Trust  may  be  subject  to  state  and  local  taxes  on
exempt-interest dividends.

    Distributions from investment  income and long-term  and short-term  capital
gains  will not  be excluded from  taxable income in  determining the California
corporate income or franchise tax for corporate shareholders. Such distributions
also may be  includable in  income subject to  the alternative  minimum tax.  In
addition,  distributions  from investment  income  and long-term  and short-term
capital gains may be subject to state taxes in states other than California  and
to local taxes.

    Interest  on  indebtedness incurred  by shareholders  or related  parties to
purchase or  carry  shares  of  an  investment  company  paying  exempt-interest
dividends, such as the Trust, will not be deductible by the investor for federal
or California personal income tax purposes.

    The  foregoing relates to federal income taxation and to California personal
income taxation as in  effect as of the  date of this Prospectus.  Distributions
from  investment income and capital  gains, including exempt-interest dividends,
may be subject to California franchise taxes if received by a corporation  doing
business  in California, to state  taxes in states other  than California and to
local taxes.

                                      A-8
<PAGE>
    Shareholders should consult their  tax advisers as  to the applicability  of
the above to their own tax situation.

CURRENT AND EFFECTIVE YIELD

    From  time to time the Trusts advertise their "yield" and "effective yield."
Both yield figures  are based  on historical earnings  and are  not intended  to
indicate  future  performance.  The "yield"  of  a  Trust refers  to  the income
generated by an  investment in the  Trust over a  given seven-day period  (which
period  will be stated in the  advertisement). This income is then "annualized."
That is, the amount of income generated by the investment during that  seven-day
period  is assumed to be generated each seven-day period within a 365-day period
and is shown  as a percentage  of the  investment. The "effective  yield" for  a
seven-day period is calculated similarly but, when annualized, the income earned
by  an investment  in a  Trust is assumed  to be  reinvested each  week within a
365-day period. The "effective yield" will  be slightly higher than the  "yield"
because  of the  compounding effect of  this assumed  reinvestment. The Tax-Free
Trust and California Tax-Free Trust  may also quote tax-equivalent yield,  which
is  calculated by determining  the pre-tax yield  which, after being  taxed at a
stated rate, would be equivalent to the yield determined as described above.

GENERAL INFORMATION
- --------------------------------------------------------------------------------

VOTING RIGHTS

    All shares of beneficial interest of a Trust are of $0.01 par value and  are
equal  as to  earnings, assets and  voting privileges. There  are no conversion,
pre-emptive or  other subscription  rights. In  the event  of liquidation,  each
share of beneficial interest of a Trust is entitled to its portion of all of the
Trust's  assets after all debts  and expenses have been  paid. The shares do not
have cumulative voting rights.

    In accordance with  each Trust's  Declaration of  Trust, the  Trustees of  a
Trust  will be elected  by a majority  shareholder vote at  the first meeting of
shareholders held following the  initial offering of the  shares of that  Trust.
The  Trustees  will be  elected  for unlimited  terms  at the  first  meeting of
shareholders. The Trustees themselves have the power to alter the number and the
terms of office of the Trustees (as  provided for in the Declaration of  Trust),
and they may at any time lengthen or shorten their own terms or make their terms
of  unlimited duration and appoint their own successors, provided that always at
least a majority of the  Trustees has been elected  by the shareholders of  each
Trust.  Under certain circumstances the Trustees may be removed by action of the
Trustees. The shareholders also  have the right  under certain circumstances  to
remove  the Trustees. The  voting rights of shareholders  are not cumulative, so
that holders of more than 50 percent  of the shares voting can, if they  choose,
elect  all Trustees  being elected,  while the  holders of  the remaining shares
would be unable to elect any Trustees. The Trust is not required to hold  Annual
Meetings of Shareholders and in ordinary circumstances the Trust does not intend
to  hold such meetings.  The Trustees may call  Special Meetings of Shareholders
for action by shareholder vote as may be required by the Act or the  Declaration
of Trust.

    The  Declaration of Trust permits the  Trustees to authorize the creation of
additional series  of  shares  (the  proceeds of  which  would  be  invested  in
separate,  independently managed  portfolios) and  additional classes  of shares
within any  series (which  would be  used  to distinguish  among the  rights  of
different categories of shareholders, as might be required by future regulations
or  other unforeseen circumstances).  However, the Trustees  have not authorized
any such additional series  or classes of  shares and the  Trust has no  present
intention  to  add additional  series or  classes of  shares. Trustees  may call
Special Meetings  of Shareholders  for  action by  shareholder  vote as  may  be
required by the Act or the Declaration of Trust.

                                      A-9
<PAGE>
    Under Massachusetts law, shareholders of a business trust may, under certain
circumstances,  be held personally  liable as partners for  the obligations of a
Trust. The Declaration of  Trust contains an  express disclaimer of  shareholder
liability  for acts or obligations  of a Trust and  requires that notice of such
disclaimer be given in each instrument entered into or executed by a Trust.  The
Declaration  of Trust provides  for indemnification out  of the Trust's property
for any shareholder  held personally liable  for the obligations  of the  Trust.
Thus,  the  risk  of  a  shareholder  incurring  financial  loss  on  account of
shareholder liability  is limited  to circumstances  in which  the Trust  itself
would  be unable to meet its obligations. Given the nature of the Trusts' assets
and operations, the possibility of a Trust being unable to meet its  obligations
is  remote and, in the opinion of  Massachusetts counsel to the Trusts, the risk
to Trust shareholders is remote.

CUSTODIAN

    The Bank of New York, 110 Washington Street, New York, New York 10286 is the
Custodian of  the Trusts'  assets. The  Custodian has  no part  in deciding  the
Trusts'  investment policies or which securities are to be purchased or sold for
the Trusts' portfolios. Any of the  Trust's cash balances with the Custodian  in
excess  of $100,000 are unprotected by  Federal deposit insurance. Such balances
may, at times, be substantial.

    SHAREHOLDER INQUIRIES.    All  inquiries  regarding  the  Trusts  should  be
directed  to the Trusts at  the telephone number or at  the address set forth on
the front cover of these Prospectuses.

                                      A-10
<PAGE>
CUSTODIAN
THE BANK OF NEW YORK
110 WASHINGTON STREET
NEW YORK, NEW YORK 10286
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
DEAN WITTER TRUST COMPANY
HARBORSIDE FINANCIAL CENTER
PLAZA TWO
JERSEY CITY, NEW JERSEY 07311
INDEPENDENT ACCOUNTANTS
PRICE WATERHOUSE LLP
1177 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
INVESTMENT MANAGER
DEAN WITTER INTERCAPITAL INC.

NO DEALER, SALESMAN OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS, OTHER THAN THOSE CONTAINED IN THESE
PROSPECTUSES OR IN THE STATEMENTS OF ADDITIONAL INFORMATION, IN CONNECTION WITH
THE OFFER CONTAINED IN THESE PROSPECTUSES OR IN THE STATEMENTS OF ADDITIONAL
INFORMATION AND, IF GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE TRUSTS OR THE
DISTRIBUTOR. THESE PROSPECTUSES AND THE STATEMENTS OF ADDITIONAL INFORMATION DO
NOT CONSTITUTE AN OFFER BY THE TRUSTS OR BY THE DISTRIBUTOR TO SELL OR A
SOLICITATION OF ANY OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL FOR THE TRUSTS OR THE
DISTRIBUTOR TO MAKE SUCH OFFER IN SUCH JURISDICTION.

ACTIVE ASSETS
MONEY TRUST
ACTIVE ASSETS
TAX-FREE TRUST
ACTIVE ASSETS
CALIFORNIA TAX-FREE
TRUST
ACTIVE ASSETS
GOVERNMENT
SECURITIES TRUST

PROSPECTUSES
AUGUST 22, 1994

THE ENCLOSED PROSPECTUSES DESCRIBE FOUR FULLY MANAGED MONEY MARKET TRUSTS.
SHARES OF THE TRUSTS ARE OFFERED DIRECTLY TO CLIENTS OF DEAN WITTER AND TO
PARTICIPANTS IN THE ACTIVE ASSETS-R- ACCOUNT PROGRAM OF DEAN WITTER REYNOLDS
INC.

INVESTORS SHOULD BE AWARE THAT THE ACTIVE ASSETS ACCOUNT SERVICE IS NOT A BANK
ACCOUNT. AS WITH ANY INVESTMENT IN SECURITIES, THE VALUE OF A SHAREHOLDER'S

INVESTMENT IN THE TRUSTS MAY FLUCTUATE.

PRINCIPAL OFFICE OF THE TRUSTS
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
                                                             [LOGO]
<PAGE>
STATEMENTS OF ADDITIONAL INFORMATION
AUGUST 22, 1994                                                           [LOGO]

- --------------------------------------------------------------------------------

    Active  Assets Money Trust (the "Money Trust"  or the "Trust") is a no-load,
diversified open-end management investment  company whose investment  objectives
are  high current income, preservation of capital and liquidity. The Money Trust
seeks to  achieve its  objectives by  investing in  a diversified  portfolio  of
short-term money market instruments.

    Active  Assets Tax-Free  Trust (the  "Tax-Free Trust"  or the  "Trust") is a
no-load, diversified  open-end management  investment company  whose  investment
objective  is to  provide as high  a level  of daily income  exempt from federal
personal income tax as is consistent with stability of principal and  liquidity.
The Tax-Free Trust seeks to achieve its objective by investing primarily in high
quality tax-exempt securities with short-term maturities.

    Active  Assets California Tax-Free Trust (the "California Tax-Free Trust" or
the "Trust") is  a no-load, diversified  open-end management investment  company
whose  investment objective is to provide as high a level of daily income exempt
from federal and California personal income tax as is consistent with  stability
of  principal and liquidity. The California  Tax-Free Trust seeks to achieve its
objective by  investing primarily  in high  quality tax-exempt  securities  with
short-term maturities.

    Active Assets Government Securities Trust (the "Government Securities Trust"
or the "Trust") is a no-load, diversified open-end management investment company
whose investment objectives are high current income, preservation of capital and
liquidity.  The Government  Securities Trust seeks  to achieve  its objective by
investing in U.S. Government securities, including a variety of securities which
are issued  or guaranteed  by  the United  States  Government, its  agencies  or
instrumentalities.

    Prospectuses  for  the  Money  Trust,  the  Tax-Free  Trust,  the California
Tax-Free Trust and the Government Securities  Trust, all dated August 22,  1994,
which  provide the basic information you should  know before investing in any of
the aforementioned Trusts, may be obtained without charge from any of the Trusts
at the address or telephone number listed below. These Statements of  Additional
Information  are not Prospectuses.  They contain information  in addition to and
more detailed than  that set  forth in the  Prospectuses. They  are intended  to
provide  additional information regarding  the activities and  operations of the
Trusts, and should be read in conjunction with the Prospectuses. They should  be
read  with the information appearing  in the Appendix hereto  which is a part of
these Statements of Additional Information.

Active Assets Money Trust
Active Assets Tax-Free Trust
Active Assets California Tax-Free Trust
Active Assets Government Securities Trust
Two World Trade Center
New York, New York 10048
(212) 392-2550

    The shares of the Money Trust,  the Tax-Free Trust, the California  Tax-Free
Trust  and the  Government Securities Trust  are offered to  participants in the
Active Assets Account program of Dean  Witter Reynolds Inc. ("Dean Witter").  In
addition,  shares of the  Trusts are offered  to investors maintaining brokerage
accounts with Dean Witter who are not subscribers to the Active Assets  program.
For  further information,  either consult  the Dean  Witter Client  Agreement or
consult your Dean Witter Account Executive.

Active Assets Money Trust
<PAGE>
ACTIVE ASSETS MONEY TRUST
TABLE OF CONTENTS
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                                     <C>
Investment Practices and Policies.....................................      3

Investment Restrictions...............................................      4

How Net Asset Value is Determined.....................................      5

Dividends, Distributions and Taxes....................................      7

APPENDIX

Investment Manager....................................................    A-1

Trustees and Officers.................................................    A-7

Portfolio Transactions and Brokerage..................................   A-11

General Information...................................................   A-12

Custodian and Transfer Agent..........................................   A-12

Independent Accountants...............................................   A-13

Reports to Shareholders...............................................   A-13

Legal Counsel.........................................................   A-13

Experts...............................................................   A-13

Registration Statement................................................   A-13

Information with Respect to Securities Ratings........................   A-14
</TABLE>

Active Assets Money Trust                2
<PAGE>
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------

    REPURCHASE AGREEMENTS.   As discussed in  the Prospectus, when  cash may  be
available  for only a  few days, it may  be invested by  the Trust in repurchase
agreements until such time as it may otherwise be invested or used for  payments
of  obligations of the Trust. These agreements, which may be viewed as a type of
secured lending by the Trust, typically involve the acquisition by the Trust  of
debt securities from a selling financial institution such as a bank, savings and
loan  association or broker-dealer.  The agreement provides  that the Trust will
sell back to  the institution,  and that  the institution  will repurchase,  the
underlying security ("collateral"), which is held by the Trust's Custodian, at a
specified  price and at  a fixed time in  the future, which  is usually not more
than seven days from the date of  purchase. The Trust will accrue interest  from
the  institution until the time  when the repurchase is  to occur. Although such
date is deemed by the Trust to  be the maturity date of a repurchase  agreement,
the maturities of securities subject to repurchase agreements are not subject to
any limits and may exceed one year.

    While repurchase agreements involve certain risks not associated with direct
investments  in  debt  securities,  the  Trust  follows  procedures  designed to
minimize such risks. These procedures include effecting repurchase  transactions
only  with large, well capitalized  and well established financial institutions,
whose financial condition will be continually monitored. In addition, the  value
of  the collateral underlying  the repurchase agreement will  always be at least
equal to the  repurchase price,  including any  accrued interest  earned on  the
repurchase  agreement. Such collateral will  consist of Government securities or
"Eligible Securities" (as described below under the caption "How Net Asset Value
is  Determined")  rated  in  the  highest  grade  by  a  nationally   recognized
statistical rating organization (a "NRSRO") whose ratings qualify the collateral
security  as an Eligible Security. In the event  of a default or bankruptcy by a
selling financial institution, the Trust will seek to liquidate such collateral.
However, the exercise of  the Trust's right to  liquidate such collateral  could
involve  certain costs or delays and, to  the extent that proceeds from any sale
upon a default  of the obligation  to repurchase were  less than the  repurchase
price,  the Trust could suffer a loss. It is the current policy of the Trust not
to invest in repurchase agreements that do  not mature within seven days if  any
such  investment,  together with  any other  illiquid asset  held by  the Trust,
amount to  more  than  10% of  its  total  assets. The  Trust's  investments  in
repurchase  agreements may, at  times, be substantial  when, in the  view of the
Trust's investment manager, liquidity or other considerations warrant.

    LENDING OF  PORTFOLIO SECURITIES.   Subject  to Investment  Restriction  (2)
below, the Trust may lend portfolio securities to brokers, dealers and financial
institutions  provided that  cash equal  to at  least 100%  of the  market value
(including accrued  interest)  of the  securities  loaned is  deposited  by  the
borrower  with the  Trust and  is maintained each  business day  in a segregated
account pursuant to applicable regulations.  While such securities are on  loan,
the  borrower will pay the Trust any  income accruing thereon, and the Trust may
invest the cash collateral in  portfolio securities, thereby earning  additional
income.  The Trust will not lend its  portfolio securities if such loans are not
permitted by  the laws  or regulations  of any  state in  which its  shares  are
qualified  for sale and  will not lend more  than 10% of the  value of its total
assets. The creditworthiness  of firms  to which  the Fund  lends its  portfolio
securities  will be  monitored on  an ongoing basis.  Loans would  be subject to
termination by the Trust in the  normal settlement time, currently two  business
days  after notice, or by the borrower  on one day's notice. Borrowed securities
must be returned when  the loan is  terminated. Any gain or  loss in the  market
price of the borrowed securities which occurs during the term of the loan inures
to  the  Trust  and its  shareholders.  The  Trust may  pay  reasonable finders,
borrowers, administrative, and custodial fees in connection with a loan.  During
its fiscal year ended June 30, 1994, the Trust did not lend any of its portfolio
securities and it has no intention of doing so in the foreseeable future.

    VARIABLE  AND FLOATING RATE  OBLIGATIONS.  As stated  in the Prospectus, the
Trust may invest in  variable and floating rate  obligations. The interest  rate
payable  on a  variable rate  obligation is  adjusted at  predesignated periodic
intervals and, on floating rate obligations,  whenever there is a change in  the
market  rate of  interest on  which the  interest rate  payable is  based. Other
features may include the  right whereby the Trust  may demand prepayment of  the
principal amount of the obligation prior to its stated

Active Assets Money Trust                3
<PAGE>
maturity  (a  "demand  feature") and  the  right  of the  issuer  to  prepay the
principal amount prior  to maturity. The  principal benefit of  a variable  rate
obligation  is that the interest rate adjustment minimizes changes in the market
value of the obligation. As a result, the purchase of variable rate and floating
rate obligations should enhance  the ability of the  Trust to maintain a  stable
net  asset value per share (see "How Net Asset Value is Determined") and to sell
obligations prior to maturity at a price approximating the full principal amount
of the obligations. The principal benefit to the Trust of purchasing obligations
with a demand feature is that liquidity, and the ability of the Trust to  obtain
repayment  of the full principal  amount of an obligation  prior to maturity, is
enhanced.  The  payment  of  principal  and  interest  by  issuers  of   certain
obligations  purchased by the  Trust may be  guaranteed by letters  of credit or
other credit facilities offered by  banks or other financial institutions.  Such
guarantees  will be  considered in determining  whether an  obligation meets the
Trust's investment quality requirements.
                                  ------------

    The Trust will  attempt to balance  its objectives of  high current  income,
preservation  of capital  and liquidity  by investing  in securities  of varying
maturities and risks. The Trust will not, however, invest in securities with  an
effective maturity of more than one year from the date of purchase (see "How Net
Asset  Value is  Determined"). The  amounts invested  in obligations  of various
maturities of one  year or less  will depend on  management's evaluation of  the
risks  involved.  Longer-term  issues, while  generally  paying  higher interest
rates, are  subject to  greater  fluctuations in  value resulting  from  general
changes in interest rates than shorter-term issues. Thus, when rates on new debt
securities  increase, the value of outstanding  securities may decline, and vice
versa. Such changes may also occur, to a lesser degree, with short-term  issues.
These  changes, if  experienced, may cause  fluctuations in the  amount of daily
dividends and, in extreme cases,  could cause the net  asset value per share  to
decline  (see  "How Net  Asset Value  is  Determined"). Longer-term  issues also
increase the  risk that  the  issuer may  be unable  to  pay an  installment  of
interest  or principal at  maturity. In the event  of unusually large redemption
demands, such securities may have to be sold at a loss prior to maturity, or the
Trust might have to borrow money and incur interest expenses. Either  occurrence
would  adversely impact upon the amount of daily dividends and could result in a
decline in the daily net asset value per share or the reduction by the Trust  of
shares held in a shareholder's account. The Trust will attempt to minimize these
risks  by  investing in  relatively longer-term  securities  when it  appears to
management  that  yields  on  such   securities  are  not  likely  to   increase
substantially during the period of expected holding, and then only in securities
which  are readily marketable. However, there can be no assurance that the Trust
will be successful in achieving this objective.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    In addition to the investment restrictions enumerated in the Prospectus, the
investment restrictions listed below have  been adopted as fundamental  policies
which  cannot be changed without the approval  of the holders of a "majority" of
the outstanding shares of the Trust as defined in the Investment Company Act  of
1940,  as amended (the "Act").  Majority is defined in the  Act as the lesser of
(a) sixty-seven  percent  or  more  of  the  shares  present  at  a  meeting  of
shareholders,  if  the holders  of more  than fifty  percent of  the outstanding
shares of the Trust are present or represented by proxy, or (b) more than  fifty
percent of the outstanding shares of the Trust.

    These restrictions provide that the Trust may not:

         1. Purchase any common stocks or other equity securities;

         2.  Make  loans to  others,  except through  the  purchase of  the debt
    obligations  and  repurchase  agreements   referred  to  under   "Investment
    Practices and Policies" above and under "Investment Objectives and Policies"
    in the Prospectus and loans of portfolio securities, not in excess of 10% of
    the value of the Trust's total assets, made in accordance with guidelines of
    the  Trustees, including maintaining  collateral from the  borrower equal at
    all times to the current market value of the securities loaned;

Active Assets Money Trust                4
<PAGE>
         3. Purchase  or  sell real  estate;  however, the  Trust  may  purchase
    marketable  securities issued  by companies which  invest in  real estate or
    interests therein;

         4. Purchase securities on margin or sell short;

         5. Purchase or sell commodities or commodity futures contracts, or oil,
    gas, or mineral exploration or development programs;

         6. Purchase  securities  for  which  there  are  legal  or  contractual
    restrictions  on resale (i.e. restricted  securities), except for repurchase
    agreements;

         7. Underwrite securities of other issuers;

         8.  Purchase  warrants,  or  write,  purchase  or  sell  puts,   calls,
    straddles, spreads or combinations thereof;

         9.  Participate on a joint or joint and several basis in any securities
    trading account;

        10. Purchase the securities of  any other investment company, except  in
    connection  with a  merger, consolidation, reorganization  or acquisition of
    assets;

        11. Purchase  securities of  any issuer  for the  purpose of  exercising
    control or management; and

        12.  Invest in  securities of  any issuer  if, to  the knowledge  of the
    Trust, any officer, Trustee  or director of the  Trust or of the  Investment
    Manager  owns more  than 1/2  of 1%  of the  outstanding securities  of such
    issuer and such officers, Trustees and directors who own more than 1/2 of 1%
    own in the  aggregate more  than 5% of  the outstanding  securities of  such
    issuer.

    If  a percentage restriction is  adhered to at the  time of an investment, a
later increase or decrease  in percentage resulting from  a change in values  of
portfolio  securities or amount of total or  net assets will not be considered a
violation of any of the foregoing restrictions.

HOW NET ASSET VALUE IS DETERMINED
- --------------------------------------------------------------------------------

    As discussed in the Appendix to the  Prospectus, the net asset value of  the
Trust  is determined as of 12  noon New York time on  each day that the New York
Stock Exchange  is open.  The New  York Stock  Exchange currently  observes  the
following  holidays: New Year's Day; President's Day; Good Friday; Memorial Day;
Independence Day; Labor Day; Thanksgiving Day; and Christmas Day.

    The Trust  utilizes  the amortized  cost  method in  valuing  its  portfolio
securities  for purposes of determining the net asset value of the shares of the
Trust. The Trust  utilizes the amortized  cost method in  valuing its  portfolio
securities  even though  the portfolio  securities may  increase or  decrease in
market value,  generally, in  connection  with changes  in interest  rates.  The
amortized  cost  method of  valuation involves  valuing a  security at  its cost
adjusted by a  constant amortization  to maturity  of any  discount or  premium,
regardless  of the impact of  fluctuating interest rates on  the market value of
the instrument. While this method provides certainty in valuation, it may result
in periods during  which value, as  determined by amortized  cost, is higher  or
lower  than the price the Trust would  receive if it sold the instrument. During
such periods the yield to investors in  the Trust may differ somewhat from  that
obtained  in a  similar company  which uses  mark to  market values  for all its
portfolio securities. For example,  if the use of  amortized cost resulted in  a
lower  (higher) aggregate  portfolio value  on a  particular day,  a prospective
investor in the Trust would  be able to obtain  a somewhat higher (lower)  yield
than  would  result  from investment  in  such  a similar  company  and existing
investors would  receive less  (more)  investment income.  The purpose  of  this
method  of calculation is to facilitate the  maintenance of a constant net asset
value per share of $1.00.

    The Trust's  use  of  the  amortized cost  method  to  value  its  portfolio
securities  is permitted pursuant  to Rule 2a-7  of the Act  (the "Rule") and is
conditioned on  its compliance  with various  conditions contained  in the  Rule
including: (a) the Trustees are obligated, as a particular responsibility within
the overall duty of

Active Assets Money Trust                5
<PAGE>
care  owed  to  the  Trust's shareholders,  to  establish  procedures reasonably
designed,  taking  into  account  current  market  conditions  and  the  Trust's
investment  objectives, to stabilize  the net asset value  per share as computed
for the purpose of  distribution and redemption at  $1.00 per share; (b)(i)  the
procedures  include calculation, at such intervals as the Trustees determine are
appropriate and as are reasonable in light of current market conditions, of  the
deviation,  if any  between net  asset value per  share using  amortized cost to
value portfolio securities and  net asset value per  share based upon  available
market  quotations  with respect  to  such portfolio  securities;  (ii) periodic
review by the Trustees  of the amount  of deviation as well  as methods used  to
calculate  it; and (iii)  maintenance of written records  of the procedures, and
the Trustees' considerations made  pursuant to them and  any actions taken  upon
such consideration; c) the Trustees will consider what steps should be taken, if
any, in the event of a difference of more than 1/2 of 1% between the two methods
of  valuation;  and  (d) the  Trustees  should  take such  action  as  they deem
appropriate (such as shortening the average portfolio maturity, realizing  gains
or  losses,  withholding dividends  or reducing  the  number of  the outstanding
shares of the Trust) to eliminate or reduce to the extent reasonably practicable
material dilution or other unfair results to investors or existing  shareholders
which  might arise  from differences between  the two methods  of valuation. Any
reduction of  outstanding shares  will be  effected by  having each  shareholder
proportionately  contribute  to the  Trust's capital  the necessary  shares that
represent the amount of excess upon such determination. Each shareholder will be
deemed to have agreed to such contribution in these circumstances by  investment
in  the Trust. See "Dividends, Distributions and  Taxes" for a discussion of the
tax effect of such reduction.

    Generally, for  purposes  of the  procedures  adopted under  the  Rule,  the
maturity  of  a  portfolio  instrument  is deemed  to  be  the  period remaining
(calculated from the trade date or such other date on which the Trust's interest
in the instrument is subject to market action) until the date noted on the  face
of  the instrument as the date on which the principal amount must be paid, or in
the case  of  an  instrument  called  for redemption,  the  date  on  which  the
redemption payment must be made.

    A  variable rate obligation that is subject to a demand feature is deemed to
have a maturity  equal to  the longer  of the  period remaining  until the  next
readjustment  of the interest  rate or the period  remaining until the principal
amount can  be recovered  through demand.  A floating  rate instrument  that  is
subject  to a demand  feature is deemed to  have a maturity  equal to the period
remaining until the principal amount can be recovered through demand.

    An Eligible Security is defined  in the Rule to  mean a security which:  (a)
has  a remaining maturity of thirteen months or less; (b)(i) is rated in the two
highest short-term  rating  categories by  any  two  NRSRO that  have  issued  a
short-term  rating with respect to the security  or class of debt obligations of
the issuer,  or (ii)  if only  one NRSRO  has issued  a short-term  rating  with
respect to the security, then by that NRSRO; (c) was a long-term security at the
time of issuance whose issuer has outstanding a short-term debt obligation which
is  comparable in priority and security and  has a rating as specified in clause
(b) above; or (d) if no rating is  assigned by any NRSRO as provided in  clauses
(b)  and (c)  above, the unrated  security is determined  by the Board  to be of
comparable quality  to  any  such  rated security.  The  Trust  will  limit  its
investments  to securities  that meet  the requirements  for Eligible Securities
including the  required  ratings  by  S&P  or  Moody's,  as  set  forth  in  the
prospectus.

    As  permitted by the Rule, the Board has delegated to the Trust's Investment
Manager, subject to the Board's oversight pursuant to guidelines and  procedures
adopted  by  the  Board, the  authority  to determine  which  securities present
minimal credit risks and which unrated  securities are comparable in quality  to
rated securities.

    Also,  as required  by the  Rule, the  Trust will  limit its  investments in
securities, other than Government securities, so that, at the time of  purchase:
(a) except as further limited in (b) below with regard to certain securities, no
more  than 5% of its total assets will  be invested in the securities of any one
issuer; and (b) with respect to Eligible Securities that have received a  rating
in  less than the  highest category by any  one of the  NRSROs whose ratings are
used  to  qualify  the   security  as  an   Eligible  Security,  or   determined

Active Assets Money Trust                6
<PAGE>
to  be of comparable quality: (i) no more than 5% in the aggregate of the Trusts
total assets in all such securities, and (ii) no more than the greater of 1%  of
total assets, or $1 million, in the securities on any one issuer.

    The  presence of a line of credit or other credit facility offered by a bank
or other financial institution  which guarantees the  payment obligation of  the
issuer,  in the event of a default in the payment of principal or interest of an
obligation may be taken into account in determining whether an investment is  an
Eligible Security, provided that the guarantee itself is an Eligible Security.

    The  Rule  further requires  that the  Trust limit  its investments  to U.S.
dollar-denominated instruments  which  the Trustees  determine  present  minimal
credit risks and which are Eligible Securities. The Rule also requires the Trust
to maintain a dollar-weighted average portfolio maturity (not more than 90 days)
appropriate  to its objective of  maintaining a stable net  asset value of $1.00
per share and precludes the purchase of any instrument with a remaining maturity
of more than 397 days. Should the disposition of a portfolio security result  in
a  dollar-weighted average  portfolio maturity of  more than 90  days, the Trust
will invest its available cash in such a manner as to reduce such maturity to 90
days or less as soon as is reasonably practicable.

    If the Board determines that  it is no longer in  the best interests of  the
Trust  and its shareholders to maintain a stable price of $1 per share or if the
Board believes that maintaining such price no longer reflects a market-based net
asset value per share, the Board has the right to change from an amortized  cost
basis  of  valuation to  valuation based  on market  quotations. The  Trust will
notify shareholders of any such change.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

    As discussed in the Appendix to the Prospectus, the Trust intends to declare
dividends payable on each day the New  York Stock Exchange is open for  business
of  all of its daily net investment  income and net short-term capital gains, if
any, to shareholders  of record as  of 12 noon  New York time  of the  preceding
business  day. Net income, for dividend  purposes, includes accrued interest and
amortization of original issue and market discount, plus or minus any short-term
gains or losses realized on sales of portfolio securities, less the amortization
of market premium and the  estimated expenses of the  Trust. Net income will  be
calculated  immediately prior to the determination  of net asset value per share
of the Trust.

    Gains or losses on the  sales of securities by  the Trust will be  long-term
capital  gains or losses if the securities have  been held by the Trust for more
than twelve months. Gains or  losses on the sale  of securities held for  twelve
months or less will be short-term capital gains or losses.

    The  Trustees may revise the above  dividend policy, or postpone the payment
of dividends,  if the  Trust  should have  or  anticipate any  large  unexpected
expense,  loss  or  fluctuation in  net  assets  which, in  the  opinion  of the
Trustees, might have a significant adverse effect on shareholders. On  occasion,
in  order to maintain a constant $1 per  share net asset value, the Trustees may
direct that the number  of outstanding shares be  reduced in each  shareholder's
account.  Such reduction may result in taxable income to a shareholder in excess
of the net  increase (i.e.,  dividends, less such  reductions), if  any, in  the
shareholder's  account for a period. Furthermore, such reduction may be realized
as a capital loss when the shares are liquidated.

    The Trust  has qualified  and intends  to remain  qualified as  a  regulated
investment  company under Subchapter M of the  Internal Revenue Code of 1986, as
amended (the "Code"). If so qualified, the Trust will not be subject to  federal
income  or excise  taxes provided  that it  distributes all  of its  taxable net
investment income and all of its net realized capital gains.

Active Assets Money Trust                7
<PAGE>
    Shareholders will be subject  to federal income tax  on dividends paid  from
interest income derived from taxable securities and on distributions of realized
net  short-term capital gains. Such interest and realized net short-term capital
gains dividends and  distributions are  taxable to the  shareholder as  ordinary
dividend   income   regardless  of   whether   the  shareholder   receives  such
distributions in  additional shares  or in  cash. Since  the Trust's  income  is
expected to be derived entirely from interest rather than dividends, none of the
Trust's  dividends/distributions  will  be eligible  for  the  federal dividends
received deduction available to corporations.

    The Code requires each regulated  investment company to pay a  nondeductible
4%  excise  tax to  the  extent the  company  does not  distribute,  during each
calendar year, 98% of its ordinary income, determined on a calendar year  basis,
and  98% of its capital gains, determined in  general on an October 31 year end,
plus certain undistributed  amounts from previous  years. The Trust  anticipates
that  it will  make sufficient timely  distributions to avoid  imposition of the
excise tax.

    Under  present  Massachusetts  law,  the   Trust  is  not  subject  to   any
Massachusetts  income tax during any fiscal year in which the Trust qualifies as
a regulated  investment company.  The Trust  might be  subject to  Massachusetts
income taxes for any taxable year in which it does not so qualify as a regulated
investment company.

    The  Trust may be  subject to tax or  taxes in certain  states where it does
business. Furthermore,  in those  states which  have income  tax laws,  the  tax
treatment  of the Trust and of shareholders with respect to distributions by the
Trust may differ from Federal tax treatment.

    Shareholders are urged to consult their own tax advisers regarding  specific
questions as to Federal, state or local taxes.

INFORMATION ON COMPUTATION OF YIELD

    The  Trust's annualized current yield, as may be quoted from time to time in
advertisements and other communications to shareholders and potential investors,
is computed  by determining,  for a  stated seven-day  period, the  net  change,
exclusive  of  capital  changes and  including  the value  of  additional shares
purchased with dividends  and any  dividends declared  therefrom (which  reflect
deductions  of all expenses of the Trust  such as management fees), in the value
of a hypothetical  pre-existing account  having a balance  of one  share at  the
beginning of the period, and dividing the difference by the value of the account
at  the beginning of the base period to  obtain the base period return, and then
multiplying the base period return by (365/7).

    The Trust's annualized effective yield, as  may be quoted from time to  time
in  advertisements  and  other  communications  to  shareholders  and  potential
investors, is computed by determining (for  the same stated seven-day period  as
for  the  current  yield), the  net  change,  exclusive of  capital  changes and
including the  value  of additional  shares  purchased with  dividends  and  any
dividends  declared therefrom (which  reflect deductions of  all expenses of the
Trust such as  management fees),  in the  value of  a hypothetical  pre-existing
account  having  a balance  of one  share at  the beginning  of the  period, and
dividing the difference by the value of the account at the beginning of the base
period to obtain the  base period return, and  then compounding the base  period
return  by adding 1, raising the  sum to a power equal  to 365 divided by 7, and
subtracting 1 from the result.

    The yields quoted in any advertisement or other communication should not  be
considered  a representation of the yields of  the Trust in the future since the
yield is not fixed. Actual yields will depend not only on the type, quality  and
maturities of the investments held by the Trust and changes in interest rates on
such investments, but also on changes in the Trust's expenses during the period.

    Yield  information may be  useful in reviewing the  performance of the Trust
and for providing  a basis  for comparison with  other investment  alternatives.
However,  unlike bank deposits or other  investments which typically pay a fixed
yield for a stated period of time, the Trust's yield fluctuates.

    The Trust's current yield for the seven days ending June 30, 1994 was 3.80%.
The effective annual yield on 3.80% is 3.86%, assuming daily compounding.

Active Assets Money Trust                8
<PAGE>
STATEMENTS OF ADDITIONAL INFORMATION
AUGUST 22, 1994                                                           [LOGO]

- --------------------------------------------------------------------------------

    Active  Assets Money Trust (the "Money Trust"  or the "Trust") is a no-load,
diversified open-end management investment  company whose investment  objectives
are  high current income, preservation of capital and liquidity. The Money Trust
seeks to  achieve its  objectives by  investing in  a diversified  portfolio  of
short-term money market instruments.

    Active  Assets Tax-Free  Trust (the  "Tax-Free Trust"  or the  "Trust") is a
no-load, diversified  open-end management  investment company  whose  investment
objective  is to  provide as high  a level  of daily income  exempt from federal
personal income tax as is consistent with stability of principal and  liquidity.
The Tax-Free Trust seeks to achieve its objective by investing primarily in high
quality tax-exempt securities with short-term maturities.

    Active  Assets California Tax-Free Trust (the "California Tax-Free Trust" or
the "Trust") is  a no-load, diversified  open-end management investment  company
whose  investment objective is to provide as high a level of daily income exempt
from federal and California personal income tax as is consistent with  stability
of  principal and liquidity. The California  Tax-Free Trust seeks to achieve its
objective by  investing primarily  in high  quality tax-exempt  securities  with
short-term maturities.

    Active Assets Government Securities Trust (the "Government Securities Trust"
or the "Trust") is a no-load, diversified open-end management investment company
whose investment objectives are high current income, preservation of capital and
liquidity.  The Government  Securities Trust seeks  to achieve  its objective by
investing in U.S. Government securities, including a variety of securities which
are issued  or guaranteed  by  the United  States  Government, its  agencies  or
instrumentalities.

    Prospectuses  for  the  Money  Trust,  the  Tax-Free  Trust,  the California
Tax-Free Trust and the Government Securities  Trust, all dated August 22,  1994,
which  provide the basic information you should  know before investing in any of
the aforementioned Trusts, may be obtained without charge from any of the Trusts
at the address or telephone number listed below. These Statements of  Additional
Information  are not Prospectuses.  They contain information  in addition to and
more detailed than  that set  forth in the  Prospectuses. They  are intended  to
provide  additional information regarding  the activities and  operations of the
Trusts, and should be read in conjunction with the Prospectuses. They should  be
read  with the information appearing  in the Appendix hereto  which is a part of
these Statements of Additional Information.

Active Assets Money Trust
Active Assets Tax-Free Trust
Active Assets California Tax-Free Trust
Active Assets Government Securities Trust

Two World Trade Center
New York, New York 10048
(212) 392-2550

    The shares of the Money Trust,  the Tax-Free Trust, the California  Tax-Free
Trust  and the  Government Securities Trust  are offered to  participants in the
Active Assets Account program of Dean  Witter Reynolds Inc. ("Dean Witter").  In
addition,  shares of the  Trusts are offered  to investors maintaining brokerage
accounts with Dean Witter who are not subscribers to the Active Assets  program.
For  further information,  either consult  the Dean  Witter Client  Agreement or
consult your Dean Witter Account Executive.

Active Assets Tax-Free Trust
<PAGE>
ACTIVE ASSETS TAX-FREE TRUST
TABLE OF CONTENTS
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                                     <C>
Investment Practices and Policies.....................................      3

Investment Restrictions...............................................      5

How Net Asset Value is Determined.....................................      7

Dividends, Distributions and Taxes....................................      9

APPENDIX

Investment Manager....................................................    A-1

Trustees and Officers.................................................    A-7

Portfolio Transactions and Brokerage..................................   A-11

General Information...................................................   A-12

Custodian and Transfer Agent..........................................   A-12

Independent Accountants...............................................   A-13

Reports to Shareholders...............................................   A-13

Legal Counsel.........................................................   A-13

Experts...............................................................   A-13

Registration Statement................................................   A-13

Information with Respect to Securities Ratings........................   A-14
</TABLE>

Active Assets Tax-Free Trust           2
<PAGE>
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------

    MUNICIPAL BONDS.   Municipal Bonds, as  referred to in  the Prospectus,  are
debt  obligations of states, cities,  municipalities and municipal agencies (all
of which are generally referred to  as "municipalities") which generally have  a
maturity  at the time of issuance of one  year or more. They are issued to raise
funds for  various public  purposes, such  as construction  of a  wide range  of
public  facilities, to  refund outstanding obligations  and to  obtain funds for
general  operating  expenses  or  to  loan  to  other  public  institutions  and
facilities.  In  addition, certain  types  of industrial  development  bonds and
pollution control bonds  are issued  by or on  behalf of  public authorities  to
provide funding for various privately operated facilities.

    MUNICIPAL   NOTES.     Municipal   Notes   are  short-term   obligations  of
municipalities, generally with a maturity, at the time of issuance, ranging from
six months to three  years. The principal types  of Municipal Notes include  tax
anticipation  notes,  bond anticipation  notes,  revenue anticipation  notes and
project notes. In addition,  there are other types  of Municipal Notes in  which
the  Trust may invest. Notes sold in anticipation of collection of taxes, a bond
sale, or  receipt of  other  revenues are  usually  general obligations  of  the
issuing  municipality or agency. Project Notes  are issued by local agencies and
are guaranteed by the United States Department of Housing and Urban Development.
Such notes are secured by the full faith and credit of the United States.

    The two principal classifications of Municipal Bonds and Notes are  "general
obligation" and "revenue" bonds or notes. General obligation bonds and notes are
secured  by the issuer's pledge  of its faith, credit,  and taxing power for the
payment of principal and interest. Issuers of general obligation bonds and notes
include states, counties,  cities, towns and  other governmental units.  Revenue
bonds and notes are payable from the revenues derived from a particular facility
or class of facilities or, in some cases, from specific revenue sources. Revenue
bonds  and notes and commercial paper are issued for a wide variety of purposes,
including the financing  of electric,  gas, water  and sewer  systems and  other
public  utilities;  industrial  development  and  pollution  control facilities;
single and multi-family housing units; public buildings and facilities; air  and
marine ports; transportation facilities such as toll roads, bridges and tunnels;
and  health and educational  facilities such as  hospitals and dormitories. They
rely primarily on user fees to  pay debt service although the principal  revenue
source  is often supplemented by additional security features which are intended
to enhance  the creditworthiness  of the  issuer's obligations.  In some  cases,
particularly  in the  instance of  revenue bonds  issued to  finance housing and
public buildings, a direct or implied "moral obligation" of a governmental  unit
may  be pledged to the payment of debt service. In other cases, a special tax or
other charge may augment user fees.

    Obligations of issuers of Municipal Bonds and Municipal Notes are subject to
the provisions of bankruptcy, insolvency and other laws affecting the rights and
remedies of creditors,  such as the  Federal Bankruptcy Act,  and laws, if  any,
which  may be enacted by  Congress or state legislatures  to extend the time for
payment of principal or interest, or  both, or to impose other constraints  upon
enforcement  of such obligations or upon  municipalities to levy taxes. There is
also the possibility that,  as a result of  litigation or other conditions,  the
power  or ability of any one  or more issuer to pay,  when due, principal of and
interest on its, or their, Municipal Bonds and Municipal Notes may be materially
affected.

    VARIABLE RATE AND FLOATING RATE OBLIGATIONS.   As stated in the  Prospectus,
the  Trust  may  invest  in  Municipal  Bonds  and  Municipal  Notes ("Municipal
Obligations")  of  the   type  called  "variable   rate"  and  "floating   rate"
obligations.

    The  interest  rate  payable  on a  variable  rate  Municipal  Obligation is
adjusted either  at  predesignated  periodic  intervals  and  on  floating  rate
Municipal Obligations, whenever there is a change in the market rate of interest
on  which the  interest rate  payable is based.  Other features  may include the
right whereby the  Trust may demand  prepayment of the  principal amount of  the
obligation  prior to its stated  maturity (a "demand feature")  and the right of
the issuer  to prepay  the principal  amount prior  to maturity.  The  principal
benefit  of a variable rate and a floating rate Municipal Obligation is that the
interest  rate  adjustment  minimizes  changes  in  the  market  value  of   the
obligation.  As  a result,  the  purchases of  variable  rate and  floating rate
Municipal Obligations  could enhance  the ability  of the  Trust to  maintain  a

                                       3
Active Assets Tax-Free Trust
<PAGE>
stable net asset value per share (see "How Net Asset Value is Determined" in the
Prospectus")  and to  sell Municipal  Obligations prior  to maturity  at a price
approximating the full principal amount of the obligation. The principal benefit
to the Trust of purchasing Municipal  Obligations with a demand feature is  that
liquidity,  and  the  ability of  the  Trust  to obtain  repayment  of  the full
principal amount of a Municipal Obligation  prior to maturity, is enhanced.  The
payment  of principal and  interest by issuers  of certain Municipal Obligations
purchased by the Trust may  be guaranteed by letters  of credit or other  credit
facilities  offered by  banks or  other financial  institutions. Such guarantees
will be  considered in  determining  whether a  Municipal Obligation  meets  the
Trust's investment quality requirements.

    WHEN-ISSUED  AND DELAYED DELIVERY SECURITIES.   As stated in the Prospectus,
the Trust  may  purchase  tax-exempt  securities on  a  when-issued  or  delayed
delivery basis. When such transactions are negotiated, the price is fixed at the
time  of commitment,  but delivery and  payment can  take place a  month or more
after the date of the commitment. While the Trust will only purchase  securities
on  a when-issued or delayed delivery basis  with the intention of acquiring the
securities, the Trust may sell the securities before the settlement date, if  it
is  deemed advisable. The securities so purchased  or sold are subject to market
fluctuation and no interest accrues to the purchaser during this period. At  the
time  the Trust  makes the  commitment to purchase  a Municipal  Obligation on a
when-issued or  delayed  delivery basis,  it  will record  the  transaction  and
thereafter  reflect  the  value,  each  day,  of  the  Municipal  Obligation  in
determining its net  asset value.  The Trust  will also  establish a  segregated
account  with  its  custodian  bank  in which  it  will  maintain  cash  or cash
equivalents or other  Municipal Obligations  equal in value  to commitments  for
such when-issued or delayed delivery securities. The Trust does not believe that
its  net asset  value or income  will be  adversely affected by  its purchase of
Municipal Obligations on a when-issued or delayed delivery basis.

    REPURCHASE AGREEMENTS.  When cash may be  available for only a few days,  it
may  be invested by the Trust in repurchase agreements until such time as it may
otherwise be invested or  used for payments of  obligations of the Trust.  These
agreements,  which may  be viewed  as a  type of  secured lending  by the Trust,
typically involve the acquisition by the Trust of debt securities from a selling
financial  institution  such  as  a  bank,  savings  and  loan  association   or
broker-dealer.  The  agreement provides  that the  Trust will  sell back  to the
institution, and that the institution  will repurchase, the underlying  security
("collateral")  at a specified price and at a fixed time in the future, which is
usually not more  than seven  days from  the date  of purchase.  The Trust  will
receive  interest from the institution until the  time when the repurchase is to
occur. Although such date is  deemed by the Trust to  be the maturity date of  a
repurchase  agreement,  the  maturities  of  securities  subject  to  repurchase
agreements are not subject to any limits and may exceed one year.

    While repurchase agreements involve certain risks not associated with direct
investments in  debt  securities,  the  Trust  follows  procedures  designed  to
minimize  such risks. These procedures include effecting repurchase transactions
only with large, well capitalized  and well established financial  institutions,
whose financial condition will be continuously monitored. In addition, the value
of  the collateral underlying  the repurchase agreement will  always be at least
equal to the  repurchase price,  including any  accrued interest  earned on  the
repurchase  agreement. Such collateral will  consist of Government securities or
"Eligible Securities" (as described below under the caption "How Net Asset Value
is  Determined")  rated  in  the  highest  grade  by  a  nationally   recognized
statistical rating organization (a "NRSRO") whose ratings qualify the collateral
as  an Eligible Security. In  the event of a default  or bankruptcy by a selling
financial institution,  the  Trust  will  seek  to  liquidate  such  collateral.
However,  the exercising of the Trust's right to liquidate such collateral could
involve certain costs or delays and, to  the extent that proceeds from any  sale
upon  a default of  the obligation to  repurchase were less  than the repurchase
price, the Trust could suffer a loss. It is the current policy of the Trust  not
to  invest in repurchase agreements that do  not mature within seven days if any
such investment, together  with any  other illiquid  assets held  by the  Trust,
amount  to  more  than 10%  of  its  total assets.  The  Trust's  investments in
repurchase agreements  may at  times be  substantial when,  in the  view of  the
Trust's  investment manager, liquidity or other considerations warrant. However,
during the fiscal year  ended June 30,  1994, the Trust did  not enter into  any
repurchase agreements and the Trust does not intend to enter into any repurchase
agreements during the foreseeable future.

Active Assets Tax-Free Trust           4
<PAGE>
    PUT  OPTIONS.  The Trust may purchase  securities together with the right to
resell them to the seller  at an agreed upon price  or yield within a  specified
period  prior to the maturity date of such securities. Such a right to resell is
commonly known as  a "put," and  the aggregate  price which the  Trust pays  for
securities  with puts may be higher than the price which otherwise would be paid
for the  securities.  Consistent  with the  Trust's  investment  objectives  and
subject  to the supervision of the Trust's Trustees, the primary purpose of this
practice is to permit the Trust to be fully invested in securities the  interest
on  which is  exempt from  Federal income  taxes while  preserving the necessary
flexibility and liquidity to purchase securities on a when-issued basis, to meet
unusually large redemptions and to purchase,  at a later date, securities  other
than  those subject to the put. The  Trust's policy is generally to exercise the
puts on  their expiration  date, when  the  exercise price  is higher  than  the
current  market price for the related securities. Puts may be exercised prior to
the expiration date in order to fund obligations to purchase other securities or
to meet redemption requests. These obligations may arise during periods in which
proceeds from  sales  of  Trust  shares  and  from  recent  sales  of  portfolio
securities are insufficient to meet such obligations or when the funds available
are otherwise allocated for investment. In addition, puts may be exercised prior
to  their  expiration  date in  the  event  the Investment  Manager  revises its
evaluation of the creditworthiness of the issuer of the underlying security.  In
determining  whether  to exercise  puts prior  to their  expiration date  and in
selecting which puts to exercise  in such circumstances, the Investment  Manager
considers,  among other things, the  amount of cash available  to the Trust, the
expiration dates of the  available puts, any  future commitments for  securities
purchases,  the yield, quality and maturity  dates of the underlying securities,
alternative investment  opportunities  and  the desirability  of  retaining  the
underlying securities in the Trust's portfolio.

    The  Trust values  securities which are  subject to puts  at their amortized
cost and values the put, apart from the security, at zero. Thus, the cost of the
put will be carried on the Trust's books as an unrealized loss from the date  of
acquisition  and will  be reflected  in realized  gain or  loss when  the put is
exercised or expires. Since the value of the put is dependent on the ability  of
the  put writer to meet  its obligation to repurchase,  the Trust's policy is to
enter into  put transactions  only  with municipal  securities dealers  who  are
approved by the Trust's Trustees. Each dealer will be approved on its own merits
and  it is the Trust's  general policy to enter  into put transactions only with
those dealers which  have been determined  to present minimal  credit risks.  In
connection  with  such  determination,  the Trustees  will  review,  among other
things, the  ratings,  if available,  of  equity  and debt  securities  of  such
municipal  securities  dealers, their  reputations  in the  municipal securities
markets, the net  worth of  such dealers  and their  efficiency in  consummating
transactions.  Bank  dealers normally  will be  members  of the  Federal Reserve
System, and  other  dealers will  be  members  of the  National  Association  of
Securities  Dealers,  Inc. or  members of  a  national securities  exchange. The
Trustees have directed the Investment Manager not to enter into put transactions
with, or to exercise outstanding puts of, any municipal securities dealer which,
in the judgment  of the  Investment Manager,  ceases at  any time  to present  a
minimal credit risk. In the event that a dealer should default on its obligation
to repurchase an underlying security, the Trust is unable to predict whether all
or  any portion of any loss sustained  could be subsequently recovered from such
dealer. During the fiscal year ended June  30, 1994, the Trust did not  purchase
any put options and it has no intention of purchasing such securities during the
coming year.

    In  Revenue Ruling 82-144,  the Internal Revenue  Service stated that, under
certain circumstances, a purchaser of  tax-exempt obligations which are  subject
to  puts will be considered the owner  of the obligations for Federal income tax
purposes. In connection therewith, the Trust has received an opinion of  counsel
to  the effect that  interest on Municipal  Obligations subject to  puts will be
tax-exempt to the Trust.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    In addition to the investment restrictions enumerated in the Prospectus, the
investment  restrictions  listed  below  have  been  adopted  by  the  Trust  as
fundamental   policies,  except  as  otherwise   indicated.  Under  the  Act,  a
fundamental policy may  not be  changed without  the vote  of the  holders of  a
majority  of the outstanding voting  securities of the Trust,  as defined in the
Investment Company  Act of  1940, as  amended (the  "Act"). Such  a majority  is
defined   in  the  Act  as  the  lesser  of  (a)  67%  or  more  of  the  shares

Active Assets Tax-Free Trust           5
<PAGE>
present at a Meeting of Shareholders of  the Trust, if the holders of more  than
50%  of the outstanding shares of the  Trust are present or represented by proxy
at the meeting or (b) more than 50% of the outstanding shares of the Trust.  For
purposes  of the following  restrictions and those  contained in the Prospectus:
(a) an  "issuer" of  a security  is the  entity whose  assets and  revenues  are
committed  to the payment of interest and principal on that particular security,
provided that  the  guarantee  of  a security  will  be  considered  a  separate
security;  (b) a  "taxable security"  is any security  the interest  on which is
subject to  federal  income  tax;  and  (c)  all  percentage  limitations  apply
immediately after a purchase or initial investment, and any subsequent change in
any applicable percentage resulting from market fluctuations or other changes in
total  or  net assets  does not  require  elimination of  any security  from the
portfolio.

    The restrictions provide that the Trust may not:

         1. Invest in common stock;

         2. Invest  in securities  of any  issuer if,  to the  knowledge of  the
    Trust,  any officer, Trustee or  director of the Trust  or of the Investment
    Manager owns  more than  1/2 of  1% of  the outstanding  securities of  such
    issuer,  and such officers, Trustees and directors  who own more than 1/2 of
    1% own in the aggregate more than  5% of the outstanding securities of  such
    issuer;

         3.  Purchase or sell real estate  or interests therein, although it may
    purchase securities secured by real estate or interests therein;

         4. Purchase or sell commodities or commodity futures contracts;

         5. Purchase  oil,  gas  or  other mineral  leases,  rights  or  royalty
    contracts, or exploration or development programs;

         6.  Write, purchase or sell puts, calls, or combinations thereof except
    that it may acquire rights to resell Municipal Obligations at an agreed upon
    price and at or within an agreed upon time;

         7.  Purchase  securities  of  other  investment  companies,  except  in
    connection  with a  merger, consolidation, reorganization  or acquisition of
    assets;

         8. Pledge its  assets or assign  or otherwise encumber  them except  to
    secure  borrowings effected within  the limitations set  forth in Investment
    Restriction 5, as disclosed in the  Prospectus. To meet the requirements  of
    regulations  in certain states,  the Trust, as a  matter of operating policy
    but not as a fundamental policy, will limit any pledge of its assets to  10%
    of  its net assets  so long as shares  of the Trust are  being sold in those
    states;

         9. Issue senior securities as defined in the Act except insofar as  the
    Trust  may be  deemed to  have issued  a senior  security by  reason of: (a)
    entering into any repurchase agreement;  (b) purchasing any securities on  a
    when-issued  or delayed delivery basis; or (c) borrowing money in accordance
    with restrictions described above;

        10. Make loans of  money or securities, except:  (a) by the purchase  of
    debt  obligations  in  which  the  Trust  may  invest  consistent  with  its
    investment objective  and  policies; and  (b)  by investment  in  repurchase
    agreements;

        11. Make short sales of securities;

        12.  Purchase securities on margin, except  for such short-term loans as
    are necessary for the clearance of purchases of portfolio securities;

        13. Engage  in the  underwriting of  securities, except  insofar as  the
    Trust  may be  deemed an  underwriter under  the Securities  Act of  1933 in
    disposing of a portfolio security; and

        14. Invest for the  purpose of exercising control  or management of  any
    other issuer.

Active Assets Tax-Free Trust           6
<PAGE>
HOW NET ASSET VALUE IS DETERMINED
- --------------------------------------------------------------------------------

    As  discussed in the Appendix to the  Prospectus, the net asset value of the
Trust is determined as of 12  noon New York time on  each day that the New  York
Stock  Exchange  is open.  The New  York Stock  Exchange currently  observes the
following holidays: New Year's Day; President's Day; Good Friday; Memorial  Day;
Independence Day; Labor Day; Thanksgiving Day; and Christmas Day.

    The  Trust  utilizes  the amortized  cost  method in  valuing  its portfolio
securities for  purposes of  determining  the net  asset  value of  the  Trust's
shares.  The Trust utilizes  the amortized cost method  in valuing its portfolio
securities even  though the  portfolio securities  may increase  or decrease  in
market  value,  generally, in  connection with  changes  in interest  rates. The
amortized cost  method of  valuation involves  valuing a  security at  its  cost
adjusted  by a  constant amortization  to maturity  of any  discount or premium,
regardless of the impact  of fluctuating interest rates  on the market value  of
the instrument. While this method provides certainty in valuation, it may result
in  periods during which  value, as determined  by amortized cost,  is higher or
lower than the price the Trust would  receive it if sold the instrument.  During
such  periods, the yield to investors in the Trust may differ somewhat from that
obtained in a  similar company  which uses  mark to  market values  for all  its
portfolio  securities. For example, if  the use of amortized  cost resulted in a
lower (higher)  aggregate portfolio  value on  a particular  day, a  prospective
investor  in the Trust would  be able to obtain  a somewhat higher (lower) yield
than would  result  from investment  in  such  a similar  company  and  existing
investors  would  receive less  (more) investment  income.  The purpose  of this
method of calculation is to facilitate  the maintenance of a constant net  asset
value per share of $1.00.

    The  Trust's  use  of  the  amortized cost  method  to  value  its portfolio
securities and the  maintenance of the  per share  net asset value  of $1.00  is
permitted  pursuant to Rule 2a-7 of the  Act (the "Rule"), and is conditioned on
its compliance with various conditions contained in the Rule including: (a)  the
Trust's  Trustees  are  obligated,  as a  particular  responsibility  within the
overall duty of care owed to  the Trust's shareholders, to establish  procedures
reasonably  designed,  taking into  account  current market  conditions  and the
Trust's investment objectives,  to stabilize the  net asset value  per share  as
computed  for the purpose of distribution and redemption at $1.00 per share; (b)
(i) the procedures include calculation, at  such intervals as are reasonable  in
light  of current market conditions, of the  deviation, if any between net asset
value per share using amortized cost to value portfolio securities and net asset
value per share  based upon  available market  quotations with  respect to  such
portfolio securities (for the purpose of determining market value, securities as
to  which the Trust has a "put" will be  valued at the higher of market value or
exercise price); (ii) periodic review by the Trustees of the amount of deviation
as well  as methods  used to  calculate  it, and  (iii) maintenance  of  written
records of the procedures, the Trustees considerations made pursuant to them and
any actions taken upon such consideration; the Trustees will consider what steps
should  be taken, if any,  in the event of  a difference of more  than 1/2 of 1%
between the two  methods of  valuation; and (d)  the Trustees  should take  such
action as they deem appropriate to eliminate or reduce, to the extent reasonably
practicable,  material dilution or other unfair results to investors or existing
shareholders. Such action  may include: selling  portfolio instruments prior  to
maturity  to realize capital gains or losses or to shorten the average portfolio
maturity of the Trust;  withholding dividends; utilizing a  net asset value  per
share  as determined by using available market quotations or reducing the number
of its outstanding shares. Any reduction of outstanding shares will be  effected
by  having each shareholder proportionately contribute  to the Trust's capital a
number of  shares which  represent  the difference  between the  amortized  cost
valuation and market valuation of the portfolio. Each shareholder will be deemed
to have agreed to such contribution by his or her investment in the Trust.

    The  Rule  further requires  that the  Trust limit  its investments  to U.S.
dollar-denominated instruments  which  the Trustees  determine  present  minimal
credit risks and which are Eligible Securities (as defined below). The Rule also
requires the Trust to maintain a dollar-weighted average portfolio maturity (not
more  than 90  days) appropriate  to its objective  of maintaining  a stable net
asset value of $1.00 per share and precludes the purchase of any instrument with
a remaining maturity of more than thirteen months.

Active Assets Tax-Free Trust           7
<PAGE>
Should the  disposition of  a  portfolio security  result in  a  dollar-weighted
average  portfolio maturity  of more  than 90  days, the  Trust will  invest its
available cash in such a manner as to reduce such maturity to 90 days or less as
soon as is reasonably practicable.

    At the  time  the  Trust  makes  the  commitment  to  purchase  a  Municipal
Obligation  on  a when-issued  or  delayed delivery  basis,  it will  record the
transaction and  thereafter  reflect  the  value, each  day,  of  the  Municipal
Obligation  in determining its net asset value. Repurchase agreements are valued
at the face value of the repurchase agreement plus any accrued interest  thereon
to date.

    Generally,  for  purposes  of the  procedures  adopted under  the  Rule, the
maturity of  a  portfolio  instrument  is deemed  to  be  the  period  remaining
(calculated from the trade date or such other date on which the Trust's interest
in  the instrument is subject to market action) until the date noted on the face
of the instrument as the date on which the principal amount must be paid, or  in
the  case  of  an  instrument  called for  redemption,  the  date  on  which the
redemption payment must be made.

    A variable rate obligation that is subject to a demand feature is deemed  to
have  a maturity  equal to  the longer  of the  period remaining  until the next
readjustment of the interest  rate or the period  remaining until the  principal
amount  can  be recovered  through demand.  A floating  rate instrument  that is
subject to a demand  feature is deemed  to have a maturity  equal to the  period
remaining until the principal amount can be recovered through demand.

    An  Eligible Security is defined  in the Rule to  mean a security which: (a)
has a remaining maturity of 397 days or less; (b)(i) is rated in the two highest
short-term rating categories by  any two NRSRO's that  have issued a  short-term
rating  with respect to the security or class of debt obligations of the issuer,
or (ii) if only  one NRSRO has  issued a short-term rating  with respect to  the
security,  then  by that  NRSRO; (c)  was a  long-term security  at the  time of
issuance whose  issuer has  outstanding a  short-term debt  obligation which  is
comparable  in priority and security and has a rating as specified in clause (b)
above; or (d) if no rating is assigned  by any NRSRO as provided in clauses  (b)
and  (c)  above,  the unrated  security  is determined  by  the Board  to  be of
comparable quality  to  any  such  rated security.  The  Trust  will  limit  its
investments to securities that meet the requirements for Eligible Securities, as
set forth in the prospectus.

    As  permitted by the Rule, the Board has delegated to the Trust's Investment
Manager, subject to the Board's oversight pursuant to guidelines and  procedures
adopted  by  the  Board, the  authority  to determine  which  securities present
minimal credit risks and which unrated  securities are comparable in quality  to
rated securities.

    Also,  as required  by the  Rule, the  Trust will  limit its  investments in
securities, other than Government securities, so that, at the time of  purchase:
(a) except as further limited in (b) below with regard to certain securities, no
more  than 5% of its total assets will  be invested in the securities of any one
issuer; and (b) with respect to Eligible Securities that have received a  rating
in  less than the  highest category by any  one of the  NRSROs whose ratings are
used to qualify the security as an Eligible Security, or are determined to be of
comparable quality: (i) no  more than 5%  in the aggregate  of the Trusts  total
assets  in all such securities, and (ii) no more than the greater of 1% of total
assets, or $1 million, in the securities of any one issuer.

    If the Board determines that  it is no longer in  the best interests of  the
Trust  and its shareholders to maintain a stable price of $1 per share or if the
Board believes that maintaining such price no longer reflects a market-based net
asset value per share, the Board has the right to change from an amortized  cost
basis  of  valuation to  valuation based  on market  quotations. The  Trust will
notify shareholders of any such changes.

    The Trust will  manage its  portfolio in an  effort to  maintain a  constant
$1.00  per share price, but  it cannot assure that the  value of its shares will
never deviate from the $1.00 price.  Since dividends from net investment  income
are  declared and reinvested  on a daily  basis, the net  asset value per share,
under ordinary  circumstances,  is  likely  to  remain  constant.  Realized  and
unrealized gains and losses will not be distributed on a daily basis but will be
reflected  in the Trust's net  asset value. The amount  of such gains and losses
will be considered  by the Trustees  in determining  the action to  be taken  to
maintain the

Active Assets Tax-Free Trust           8
<PAGE>
Trust's $1.00 per share net asset value. Such action may include distribution at
any  time of  part or  all of  the then  accumulated undistributed  net realized
capital gains, or reduction or elimination of daily dividends by an amount equal
to part or all of the then accumulated net realized capital losses. However,  if
realized  losses should  exceed the sum  of net investment  income plus realized
gains on any day, the net asset value per share on that day might decline  below
$1.00  per share. In such  circumstances, the Trust may  reduce or eliminate the
payment of daily  dividends for a  period of time  in an effort  to restore  the
Trust's $1.00 per share net asset value. A decline in prices of securities could
result  in significant  unrealized depreciation  on a  mark to  market basis. In
these circumstances, the Trust may reduce or eliminate the payment of  dividends
and  utilize a net asset value per share as determined by using available market
quotations or reduce the number of its outstanding shares.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

    As stated in the  Appendix to the Prospectus,  the Trust intends to  declare
dividends, payable on each day the New York Stock Exchange is open for business,
of  all of its net investment income to shareholders of record as of 12 noon New
York time of the preceding business day.

    In computing  interest income,  the  Trust will  amortize any  premiums  and
original  issue discounts on securities owned.  Capital gains or losses realized
upon sale or maturity of such securities will be based on their amortized cost.

    Gains or losses on the  sales of securities by  the Trust will be  long-term
capital  gains or losses if the securities have  been held by the Trust for more
than twelve months. Gains or  losses on the sale  of securities held for  twelve
months or less will be short-term capital gains or losses.

    At  June 30,  1994, the Trust  had capital loss  carryovers of approximately
$47,000 available through June  30, 2000. To the  extent that this capital  loss
carryover  is used  to offset  future gains,  it is  probable that  the gains so
offset will not be  distributed to shareholders. Any  net capital loss  incurred
after  October 31 ("post-October  losses") within the taxable  year is deemed to
arise on the first day  of the fund's next taxable  year. The Fund incurred  and
elected  to defer a net capital loss  of approximately $12,000 during its fiscal
year ended June 30, 1994.

    The Trustees may  revise the  dividend policy,  or postpone  the payment  of
dividends,  if the Trust should have or anticipate any large unexpected expense,
loss or fluctuation in net assets which,  in the opinion of the Trustees,  might
have  a significant  adverse effect  on shareholders.  On occasion,  in order to
maintain a constant  $1.00 per share  net asset value,  the Trustees may  direct
that  the number of outstanding shares be reduced in each shareholder's account.
Such reduction may result in taxable income, if any, to a shareholder in  excess
of  the net  increase (i.e.,  dividends, less such  reductions), if  any, in the
shareholder's account for a period. Furthermore, such reduction may be  realized
as a capital loss when the shares are liquidated.

    As discussed in the Prospectus, the Trust intends to invest a portion of its
assets  in certain "private  activity bonds" issued  after August 7,  1986. As a
result, a portion of the exempt-interest dividends paid by the Trust will be  an
item  of tax  preference for  taxable years  beginning after  December 31, 1986.
Certain corporations which are subject to  the alternative minimum tax may  also
have  to  include  exempt-interest dividends  in  calculating  their alternative
minimum taxable income in  situations where the  "adjusted current earnings"  of
the corporation exceeds its preadjustment alternative minimum taxable income.

    The  Trust  has qualified  and intends  to remain  qualified as  a regulated
investment company under Subchapter  M of the Code.  If so qualified, the  Trust
will  not be  subject to  federal income  and excise  tax on  its net investment
income and capital gains, if  any, realized during any  fiscal year in which  it
distributes such income and capital gains to its shareholders.

    As  discussed  in  the  Prospectus,  the Trust  intends  to  qualify  to pay
"exempt-interest dividends" to its shareholders by maintaining, as of the  close
of  each  of  its  taxable years,  at  least  50% of  its  assets  in tax-exempt
securities. An exempt-interest dividend is that part of a dividend  distribution
made by the Trust which consists of interest received by the Trust on tax-exempt
securities upon which the shareholder

Active Assets Tax-Free Trust           9
<PAGE>
incurs no federal income taxes. Exempt-interest dividends are included, however,
in  determining what portion, if any, of a person's Social Security benefits are
subject to  federal income  tax  and in  certain  circumstances may  affect  the
determination  of  the  supplemental  premium  applicable  to  Medicare eligible
individuals.

    Alternative minimum taxable income is generally equal to taxable income with
certain adjustments and increased  by certain "tax  preference items" which  may
include  a portion of the Trust's dividends as described above. In addition, the
Code further provides that for taxable  years beginning in 1990 and  thereafter,
corporations are subject to an alternative minimum tax based, in part, on 75% of
any  excess of "adjusted  current earnings" over taxable  income as adjusted for
other tax preferences.  Because an  exempt-interest dividend paid  by the  Trust
will  be  included in  adjusted current  earnings,  a corporate  shareholder may
therefore be required to pay an increased alternative minimum tax as the  result
of receiving exempt-interest dividends paid by the Trust.

    The  Superfund Amendments  and Reauthorization  Act of  1986 (the "Superfund
Act") imposes a deductible  tax on a  corporation's alternative minimum  taxable
income  (computed  without  regard to  the  alternative tax  net  operating loss
deduction) at a rate of $12  per $10,000 (0.12%) of alternative minimum  taxable
income  in  excess of  $2,000,000. The  tax  will be  imposed for  taxable years
beginning after December 31, 1986  and before January 1,  1996. The tax will  be
imposed  even if the corporation  is not required to  pay an alternative minimum
tax because the corporation's regular  income tax liability exceeds its  minimum
tax   liability.  Exempt-interest  dividends  paid  by  the  Trust  that  create
alternative minimum tax  preferences for corporate  shareholders under the  Code
(as described above) may be subject to the tax.

    Within  60 days  after the end  of its fiscal  year, the Trust  will mail to
shareholders a statement indicating the percentage of the dividend distributions
for such  fiscal  year  which  constitutes  exempt-interest  dividends  and  the
percentage,  if any, that is taxable, and  to what extent the taxable portion is
long-term capital  gain,  short-term  capital  gain  or  ordinary  income.  This
percentage  should be applied uniformly to all monthly distributions made during
the fiscal year to determine the proportion of dividends that is tax-exempt. The
percentage may differ from the  percentage of tax-exempt dividend  distributions
for any particular month.

    Shareholders  will be subject  to federal income tax  on dividends paid from
interest income derived from taxable securities and on distributions of realized
net short-term capital gains. Such interest and realized net short-term  capital
gains  dividends and  distributions are taxable  to the  shareholder as ordinary
dividend  income   regardless  of   whether   the  shareholder   receives   such
distributions  in  additional  shares  or in  cash.  Distributions  of long-term
capital gains, if any, are taxable as long-term capital gains, regardless of how
long the shareholder  has held  the Fund shares  and regardless  of whether  the
distribution  is received in additional shares or cash. Since the Trust's income
is expected to be  derived entirely from interest  rather than dividends, it  is
anticipated  that none of  such dividend distributions will  be eligible for the
federal dividends received deduction available to corporations.

    Any loss on the sale or exchange of shares of the Trust which are held for 6
months or less is disallowed to the extent of the amount of any  exempt-interest
dividend  paid with respect to such shares. Treasury Regulations may provide for
a reduction in such required holding periods.

    The Code requires each regulated  investment company to pay a  nondeductible
4%  excise  tax to  the  extent the  company  does not  distribute,  during each
calendar year, 98% of its ordinary income, determined on a calendar year  basis,
and  98% of its capital gains, determined in  general on an October 31 year end,
plus  certain   undistributed  amounts   from  previous   years.  The   required
distributions,  however, are  based only  on the  taxable income  of a regulated
investment company such as the Trust, which pays exempt-interest dividends.  The
Trust  anticipates that  it will make  sufficient timely  distributions to avoid
imposition of the excise tax.

    Interest on indebtedness incurred or continued by a shareholder to  purchase
or carry shares of the Trust is not deductible. Furthermore, entities or persons
who  are  "substantial users"  (or related  persons)  of facilities  financed by
industrial  development  bonds   should  consult  their   tax  advisers   before
purchas-

                                       10
Active Assets Tax-Free Trust
<PAGE>
ing  shares of the Trust. "Substantial user"  is defined generally by Income Tax
Regulation 1.103-11 (b) as including a "non-exempt person" who regularly uses in
a trade  or  business  a part  of  a  facility financed  from  the  proceeds  of
industrial development bonds.

    From  time to time,  proposals have been introduced  before Congress for the
purpose of  restricting or  eliminating  the federal  income tax  exemption  for
interest  on municipal  securities. Similar proposals  may be  introduced in the
future. If such a  proposal were to be  enacted, the availability of  tax-exempt
municipal  securities for  investment by  the Trust  could be  affected. If such
legislation is enacted, the  Trust may reevaluate  its investment objective  and
policies.

    The  exemption of interest  income for federal income  tax purposes does not
necessarily result in exemption under the income or other tax laws of any  state
or  local taxing authority.  Thus, shareholders of  the Trust may  be subject to
state and local taxes on exempt-interest dividends. Shareholders should  consult
their  tax advisers about  the status of  dividends from the  Trust in their own
states and  localities.  The Trust  will  report annually  to  shareholders  the
percentage of interest income received by the Trust during the preceding year on
tax-exempt  obligations, indicating,  on a  state-by-state basis,  the source of
such income.

    Under  present  Massachusetts  law,  the   Trust  is  not  subject  to   any
Massachusetts  income tax during any fiscal year in which the Trust qualifies as
a regulated  investment company.  The Trust  might be  subject to  Massachusetts
income taxes for any taxable year in which it does not so qualify as a regulated
investment company.

    Any  dividends or capital gains distributions received by a shareholder from
any investment company will have the effect  of reducing the net asset value  of
the  shareholder's stock in  that fund by  the exact amount  of the dividends or
capital gains distribution.  Furthermore, capital gains  distributions are,  and
some  portion of the dividends  may be, subject to income  tax. If the net asset
value of the shares should be reduced below a shareholder's cost as a result  of
the  distribution  of realized  net long-term  capital gains,  such distribution
would be a  return of capital  but nonetheless taxable  at capital gains  rates.
Therefore,  an investor should not purchase  Trust shares immediately prior to a
distribution record date  and sell  them immediately thereafter  solely for  the
purpose of receiving the distribution.

INFORMATION ON COMPUTATION OF YIELD

    The  Trust's annualized current yield, as may be quoted from time to time in
advertisements and other communications to shareholders and potential investors,
is computed  by determining,  for a  stated seven-day  period, the  net  change,
exclusive  of  capital  changes and  including  the value  of  additional shares
purchased with dividends  and any  dividends declared  therefrom (which  reflect
deductions  of all expenses of the Trust  such as management fees), in the value
of a hypothetical  pre-existing account  having a balance  of one  share at  the
beginning of the period, and dividing the difference by the value of the account
at  the beginning of the base period to  obtain the base period return, and then
multiplying the base period return by (365/7).

    The Trust's annualized effective yield, as  may be quoted from time to  time
in  advertisements  and  other  communications  to  shareholders  and  potential
investors, is computed by determining (for  the same stated seven-day period  as
for  the  current  yield), the  net  change,  exclusive of  capital  changes and
including the  value  of additional  shares  purchased with  dividends  and  any
dividends  declared therefrom (which  reflect deductions of  all expenses of the
Trust such as  management fees),  in the  value of  a hypothetical  pre-existing
account  having  a balance  of one  share at  the beginning  of the  period, and
dividing the difference by the value of the account at the beginning of the base
period to obtain the  base period return, and  then compounding the base  period
return  by adding 1, raising the  sum to a power equal  to 365 divided by 7, and
subtracting 1 from the result.

    The yields quoted in any advertisement or other communication should not  be
considered  a representation of the yields of  the Trust in the future since the
yield is not fixed. Actual yields will depend not only on the type, quality  and
maturities of the investments held by the Trust and changes in interest rates on
such investments, but also on changes in the Trust's expenses during the period.

Active Assets Tax-Free Trust           11
<PAGE>
    Yield  information may be  useful in reviewing the  performance of the Trust
and for providing  a basis  for comparison with  other investment  alternatives.
However,  unlike bank deposits or other  investments which typically pay a fixed
yield for a stated period of time, the Trust's yield fluctuates.

    Tax-equivalent yield is  computed by  dividing that portion  of the  current
yield  (calculated as described above)  which is tax-exempt by  1 minus a stated
tax rate and adding the  quotient to that portion, if  any, of the yield of  the
Trust that is not tax-exempt.

    The Trust's current yield for the seven days ending June 30, 1994 was 2.27%.
The effective annual yield on 2.27% is 2.29%, assuming daily compounding.

    Based  upon  a Federal  personal income  tax bracket  of 39.6%,  the Trust's
tax-equivalent yield  for  the  seven  days ending  June  30,  1994  was  3.76%.
Tax-equivalent  yield is computed by dividing  that portion of the current yield
(calculated as described above) which is tax-exempt by 1 minus a stated tax rate
and adding the quotient to that portion, if any, of the yield of the Trust  that
is not tax-exempt.

Active Assets Tax-Free Trust           12
<PAGE>
STATEMENTS OF ADDITIONAL INFORMATION
AUGUST 22, 1994                                                           [LOGO]

- --------------------------------------------------------------------------------

    Active  Assets Money Trust (the "Money Trust"  or the "Trust") is a no-load,
diversified open-end management investment  company whose investment  objectives
are  high current income, preservation of capital and liquidity. The Money Trust
seeks to  achieve its  objectives by  investing in  a diversified  portfolio  of
short-term money market instruments.

    Active  Assets Tax-Free  Trust (the  "Tax-Free Trust"  or the  "Trust") is a
no-load, diversified  open-end management  investment company  whose  investment
objective  is to  provide as high  a level  of daily income  exempt from federal
personal income tax as is consistent with stability of principal and  liquidity.
The Tax-Free Trust seeks to achieve its objective by investing primarily in high
quality tax-exempt securities with short-term maturities.

    Active  Assets California Tax-Free Trust (the "California Tax-Free Trust" or
the "Trust") is  a no-load, diversified  open-end management investment  company
whose  investment objective is to provide as high a level of daily income exempt
from federal and California personal income tax as is consistent with  stability
of  principal and liquidity. The California  Tax-Free Trust seeks to achieve its
objective by  investing primarily  in high  quality tax-exempt  securities  with
short-term maturities.

    Active Assets Government Securities Trust (the "Government Securities Trust"
or the "Trust") is a no-load, diversified open-end management investment company
whose investment objectives are high current income, preservation of capital and
liquidity.  The Government  Securities Trust seeks  to achieve  its objective by
investing in U.S. Government securities, including a variety of securities which
are issued  or guaranteed  by  the United  States  Government, its  agencies  or
instrumentalities.

    Prospectuses  for  the  Money  Trust,  the  Tax-Free  Trust,  the California
Tax-Free Trust and the Government Securities  Trust, all dated August 22,  1994,
which  provide the basic information you should  know before investing in any of
the aforementioned Trusts, may be obtained without charge from any of the Trusts
at the address or telephone number listed below. These Statements of  Additional
Information  are not Prospectuses.  They contain information  in addition to and
more detailed than  that set  forth in the  Prospectuses. They  are intended  to
provide  additional information regarding  the activities and  operations of the
Trusts, and should be read in conjunction with the Prospectuses. They should  be
read  with the information appearing  in the Appendix hereto  which is a part of
these Statements of Additional Information.

Active Assets Money Trust
Active Assets Tax-Free Trust
Active Assets California Tax-Free Trust
Active Assets Government Securities Trust

Two World Trade Center
New York, New York 10048
(212) 392-2550

    The shares of the Money Trust,  the Tax-Free Trust, the California  Tax-Free
Trust  and the  Government Securities Trust  are offered to  participants in the
Active Assets Account program of Dean  Witter Reynolds Inc. ("Dean Witter").  In
addition,  shares of the  Trusts are offered  to investors maintaining brokerage
accounts with Dean Witter who are not subscribers to the Active Assets  program.
For  further information,  either consult  the Dean  Witter Client  Agreement or
consult your Dean Witter Account Executive.

Active Assets California Tax-Free Trust
<PAGE>
ACTIVE ASSETS CALIFORNIA TAX-FREE TRUST
TABLE OF CONTENTS
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                                     <C>
Investment Practices and Policies.....................................      3

Investment Restrictions...............................................      6

Special Considerations Relating to California Tax-Exempt Securities...      8

How Net Asset Value is Determined.....................................     11

Dividends, Distributions and Taxes....................................     13

APPENDIX

Investment Manager....................................................    A-1

Trustees and Officers.................................................    A-7

Portfolio Transactions and Brokerage..................................   A-11

General Information...................................................   A-12

Custodian and Transfer Agent..........................................   A-12

Independent Accountants...............................................   A-13

Reports to Shareholders...............................................   A-13

Legal Counsel.........................................................   A-13

Experts...............................................................   A-13

Registration Statement................................................   A-13

Information with Respect to Securities Ratings........................   A-14
</TABLE>

Active Assets California Tax-Free Trust   2
<PAGE>
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------

PORTFOLIO SECURITIES

    TAXABLE SECURITIES.  As discussed in the Prospectus, the Trust may invest up
to 20%  of its  total assets  in taxable  money market  instruments,  repurchase
agreements  and  non-California  tax-exempt securities.  Investments  in taxable
money market instruments would generally be made under any one of the  following
circumstances:  (a) pending  investment proceeds of  sale of Trust  shares or of
portfolio  securities;  (b)  pending   settlement  of  purchases  of   portfolio
securities; and (c) to maintain liquidity for the purpose of meeting anticipated
redemptions.  Only those non-California tax-exempt  securities which satisfy the
standards established for California tax-exempt  securities may be purchased  by
the Fund.

    In  addition, the Trust  may temporarily invest  more than 20%  of its total
assets  in  non-California  tax-exempt  securities  and  taxable  money   market
instruments,  or  in short-term  tax-exempt  securities subject  to  the federal
alternative minimum tax for individual  shareholders, to maintain a  "defensive"
posture when, in the opinion of the Investment Manager, it is advisable to do so
because  of market conditions. The types  of taxable money market instruments in
which the Trust may invest are limited to the following short-term  fixed-income
securities  (maturing  in one  year  or less  from  the time  of  purchase): (i)
obligations of the United States Government, its agencies, instrumentalities  or
authorities; (ii) commercial paper rated P-1 by Moody's Investors Services, Inc.
("Moody's")  or A-1 by Standard & Poor's Corporation ("S&P"); (iii) certificates
of deposit  of domestic  banks  with assets  of $1  billion  or more;  and  (iv)
repurchase agreements with respect to portfolio securities.

    TAX-EXEMPT  SECURITIES.  As discussed in the Prospectus, at least 80% of the
Trust's total  assets  will  be invested  in  California  tax-exempt  securities
(California Municipal Bonds, California Municipal Notes and California Municipal
Commercial  Paper). In regard  to the Moody's  and S&P ratings  discussed in the
Prospectus, it should  be noted  that the ratings  represent the  organizations'
opinions  as to the quality  of the securities which  they undertake to rate and
the ratings are general and not absolute standards of quality. For a description
of Municipal  Bond, Municipal  Note and  Municipal Commercial  Paper ratings  by
Moody's  and S&P,  see "Information with  Respect to Securities  Ratings" in the
Appendix to this Statement of Additional Information.

    The percentage and rating limitations discussed above and in the  Prospectus
apply  at the  time of acquisition  of a  security based upon  the last previous
determination of  the Trust's  net asset  value; any  subsequent change  in  any
ratings  by  a rating  service or  change in  percentages resulting  from market
fluctuations or other changes  in total assets will  not require elimination  of
any security from the Fund's portfolio.

    The  payment  of  principal and  interest  by issuers  of  certain Municipal
Obligations purchased by  the Trust may  be guaranteed by  letters of credit  or
other  credit facilities offered by banks  or other financial institutions. Such
guarantees will  be considered  in determining  whether a  Municipal  Obligation
meets  the Trust's investment quality requirements. In addition, some issues may
contain provisions which permit the Trust to demand from the issuer repayment of
principal at some specified period(s) prior to maturity.

    MUNICIPAL BONDS.   Municipal Bonds, as  referred to in  the Prospectus,  are
debt  obligations of a state, its  cities, municipalities and municipal agencies
(all of which  are generally  referred to as  "municipalities") which  generally
have  a maturity at the time of issue of one year or more, and the interest from
which is, in the  opinion of bond  counsel, exempt from  federal income tax.  In
addition  to these  requirements, the  interest from  California Municipal Bonds
must be, in the opinion of bond counsel, exempt from California personal  income
tax.  They  are issued  to  raise funds  for  various public  purposes,  such as
construction of  a  wide  range  of public  facilities,  to  refund  outstanding
obligations  and to obtain  funds for general  operating expenses or  to loan to
other  public  institutions  and  facilities.  In  addition,  certain  types  of
industrial  development bonds  and pollution control  bonds are issued  by or on
behalf of public authorities to  provide funding for various privately  operated
facilities.

Active Assets California Tax-Free Trust   3
<PAGE>
    MUNICIPAL   NOTES.     Municipal   Notes   are  short-term   obligations  of
municipalities, generally with a maturity at  the time of issuance ranging  from
six  months to three years,  the interest from which is,  in the opinion of bond
counsel, exempt from federal income tax. In addition to those requirements,  the
interest  from  California  Municipal Notes  must  be,  in the  opinion  of bond
counsel, exempt  from California  personal income  tax. The  principal types  of
Municipal Notes include tax anticipation notes, bond anticipation notes, revenue
anticipation  notes  and  project  notes,  although  there  are  other  types of
Municipal Notes in  which the Trust  may invest. Notes  sold in anticipation  of
collection  of  taxes, a  bond sale  or  receipt of  other revenues  are usually
general obligations of  the issuing  municipality or agency.  Project Notes  are
issued  by local agencies and are guaranteed  by the United States Department of
Housing and Urban  Development. Such  notes are secured  by the  full faith  and
credit of the United States Government.

    MUNICIPAL COMMERCIAL PAPER.  Municipal Commercial Paper refers to short-term
obligations of municipalities the interest from which is, in the opinion of bond
counsel,  exempt from federal income tax. In addition to those requirements, the
interest from  California Commercial  Paper  must be,  in  the opinion  of  bond
counsel,  exempt from  California personal  income tax.  It may  be issued  at a
discount and is sometimes  referred to as  Short-Term Discount Notes.  Municipal
Commercial  Paper is likely to be used to meet seasonal working capital needs of
a municipality or  interim construction financing  and to be  paid from  general
revenues  of the municipality  or refinanced with long-term  debt. In most cases
Municipal Commercial Paper is backed  by letters of credit, lending  agreements,
note  repurchase agreements or other credit facility agreements offered by banks
or other institutions.

    The two principal classifications of  Municipal Bonds, Notes and  Commercial
Paper  are "general obligation" and "revenue"  bonds, notes or commercial paper.
General obligation bonds, notes or commercial paper are secured by the  issuer's
pledge  of its faith, credit  and taxing power for  the payment of principal and
interest. Issuers of general obligation bonds, notes or commercial paper include
a state,  its counties,  cities,  towns and  other governmental  units.  Revenue
bonds,  notes or commercial paper  are payable from the  revenues derived from a
particular facility or  class of  facilities or,  in some  cases, from  specific
revenue  sources. Revenue bonds, notes or commercial paper are issued for a wide
variety of purposes, including the financing  of electric, gas, water and  sewer
systems and other public utilities; industrial development and pollution control
facilities;   single  and  multi-family  housing  units;  public  buildings  and
facilities; air and marine ports; transportation facilities such as toll  roads,
bridges and tunnels; and health and educational facilities such as hospitals and
dormitories.  They rely primarily on user fees to pay debt service, although the
principal revenue source is often  supplemented by additional security  features
which  are intended to enhance the creditworthiness of the issuer's obligations.
In some cases,  particularly with  respect to  revenue bonds  issued to  finance
housing  and  public buildings,  a  direct or  implied  "moral obligation"  of a
governmental unit may be pledged to the payment of debt service. In other cases,
a special tax or other charge may augment user fees.

    Issuers of these obligations  are subject to  the provisions of  bankruptcy,
insolvency  and other laws affecting the  rights and remedies of creditors, such
as the  Federal Bankruptcy  Act,  and laws,  if any,  which  may be  enacted  by
Congress  or any state extending the time  for payment of principal or interest,
or both, or imposing other constraints  upon enforcement of such obligations  or
upon  municipalities to  levy taxes.  There is  also the  possibility that  as a
result of litigation or other conditions the power or ability of any one or more
issuers to pay, when due, principal of and interest on its, or their,  Municipal
Bonds,  Municipal  Notes  and  Municipal  Commercial  Paper  may  be  materially
affected.

PORTFOLIO MANAGEMENT

    VARIABLE RATE AND FLOATING RATE OBLIGATIONS.   As stated in the  Prospectus,
the  Trust  may  invest  in  Municipal  Bonds  and  Municipal  Notes ("Municipal
Obligations")  of  the   type  called  "variable   rate"  and  "floating   rate"
obligations.

    The  interest rate payable on a  variable rate obligation is adjusted either
at predesignated periodic intervals and  on floating rate Municipal  Obligations
whenever  there is a change in the market rate of interest on which the interest
rate payable  is  based.  Other  features may  include  the  right  whereby  the

Active Assets California Tax-Free Trust   4
<PAGE>
Trust  may demand prepayment of the principal  amount of the obligation prior to
its stated maturity (a "demand feature") and  the right of the issuer to  prepay
the principal amount prior to maturity. The principal benefit of a variable rate
Municipal  Obligation is that the interest  rate adjustment minimizes changes in
the market value of the obligation. As  a result, the purchase of variable  rate
and  floating rate Municipal Obligations could  enhance the ability of the Trust
to maintain a  stable net asset  value per share  (see "How Net  Asset Value  is
Determined' in the Prospectus). The principal benefit to the Trust of purchasing
obligations  with a  demand feature  is that liquidity,  and the  ability of the
Trust to obtain repayment of the full principal amount of a Municipal Obligation
prior to maturity, is enhanced.

    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES.   As stated in the  Prospectus,
the  Trust  may  purchase  tax-exempt securities  on  a  when-issued  or delayed
delivery basis. When such transactions are negotiated, the price is fixed at the
time of commitment,  but delivery and  payment can  take place a  month or  more
after  the date of the commitment. While the Trust will only purchase securities
on a when-issued or delayed delivery  basis with the intention of acquiring  the
securities,  the Trust may sell the securities before the settlement date, if it
is deemed advisable. The securities so  purchased or sold are subject to  market
fluctuation  and no interest accrues to the purchaser during this period. At the
time the Trust  makes the  commitment to purchase  a Municipal  Obligation on  a
when-issued  or  delayed  delivery basis,  it  will record  the  transaction and
thereafter  reflect  the  value,  each  day,  of  the  Municipal  Obligation  in
determining  its net  asset value.  The Trust  will also  establish a segregated
account with its custodian bank in which it will maintain liquid assets such  as
cash,   U.S.  government  securities  or   other  appropriate  high  grade  debt
obligations equal  in  value to  commitments  for such  when-issued  or  delayed
delivery  securities. The  Trust does  not believe that  its net  asset value or
income will be adversely affected by its purchase of Municipal Obligations on  a
when-issued or delayed delivery basis.

    REPURCHASE  AGREEMENTS.  When cash may be  available for only a few days, it
may be invested by the Trust in repurchase agreements until such time as it  may
otherwise  be invested or used  for payments of obligations  of the Trust. These
agreements, which may  be viewed  as a  type of  secured lending  by the  Trust,
typically involve the acquisition by the Trust of debt securities from a selling
financial   institution  such  as  a  bank,  savings  and  loan  association  or
broker-dealer. The  agreement provides  that the  Trust will  sell back  to  the
institution,  and that the institution  will repurchase, the underlying security
("collateral"), which is held by the Trust's Custodian, at a specified price and
at a fixed time in  the future, which is usually  not more than seven days  from
the  date of purchase. The Trust will accrue interest from the institution until
the time when the repurchase  is to occur. Although such  date is deemed by  the
Trust  to be  the maturity  date of  a repurchase  agreement, the  maturities of
securities subject to repurchase  agreements are not subject  to any limits  and
may exceed one year.

    While repurchase agreements involve certain risks not associated with direct
investments  in  debt  securities,  the  Trust  follows  procedures  designed to
minimize such risks. These procedures include effecting repurchase  transactions
only  with large, well capitalized  and well established financial institutions,
whose financial condition will be continually monitored. In addition, the  value
of  the collateral underlying  the repurchase agreement will  always be at least
equal to the  repurchase price,  including any  accrued interest  earned on  the
repurchase  agreement. Such collateral will  consist of Government securities or
"Eligible Securities" (as described  under the caption "How  Net Asset Value  is
Determined")  rated in the highest grade  by a nationally recognized statistical
rating organization  (a "NRSRO")  whose  ratings qualify  the collateral  as  an
Eligible  Security.  In  the event  of  a  default or  bankruptcy  by  a selling
financial institution,  the  Trust  will  seek  to  liquidate  such  collateral.
However,  the exercise of  the Trust's right to  liquidate such collateral could
involve certain costs or delays and, to  the extent that proceeds from any  sale
upon  a default of  the obligation to  repurchase were less  than the repurchase
price, the Trust could suffer a loss. It is the current policy of the Trust  not
to  invest in repurchase agreements that do  not mature within seven days if any
such investment,  together with  any other  illiquid asset  held by  the  Trust,
amount  to  more  than 10%  of  its  total assets.  The  Trust's  investments in
repurchase agreements may,  at times, be  substantial when, in  the view of  the
Trust's investment manager, liquidity or other considerations warrant. The Trust
has  not to date  and has no  intention to enter  into any repurchase agreements
during the coming fiscal year.

Active Assets California Tax-Free Trust   5
<PAGE>
    PUT OPTIONS.  The Trust may  purchase securities together with the right  to
resell  them to the seller  at an agreed upon price  or yield within a specified
period prior to the maturity date of such securities. Such a right to resell  is
commonly  known as  a "put," and  the aggregate  price which the  Trust pays for
securities with puts may be higher than the price which otherwise would be  paid
for  the  securities.  Consistent  with the  Trust's  investment  objectives and
subject to the supervision of the Board of Trustees, the primary purpose of this
practice is to permit the Trust to be fully invested in securities the  interest
on  which  is exempt  from  Federal and  California  personal income  tax, while
preserving the necessary flexibility and  liquidity to purchase securities on  a
when-issued  basis, to  meet unusually  large redemptions  and to  purchase at a
later date securities other  than those subject to  the put. The Trust's  policy
is,  generally, to exercise the puts on their expiration date, when the exercise
price is higher than the current  market price for the related securities.  Puts
may  be exercised prior to  the expiration date in  order to fund obligations to
purchase other securities or to meet redemption requests. These obligations  may
arise  during periods  in which  proceeds from  sales of  Trust shares  and from
recent sales of portfolio securities  are insufficient to meet such  obligations
or when the funds available are otherwise allocated for investment. In addition,
puts may be exercised prior to their expiration date in the event the Investment
Manager  revises its  evaluation of  the creditworthiness  of the  issuer of the
underlying security.  In determining  whether to  exercise puts  prior to  their
expiration  date and in selecting which  puts to exercise in such circumstances,
the Investment  Manager  considers,  among  other things,  the  amount  of  cash
available  to the Trust, the expiration dates  of the available puts, any future
commitments for securities purchases, the  yield, quality and maturity dates  of
the   underlying  securities,  alternative   investment  opportunities  and  the
desirability of retaining the underlying securities in the Trust's portfolio.

    The Trust values  securities which are  subject to puts  at their  amortized
cost and values the put, apart from the security, at zero. Thus, the cost of the
put  will be carried on the Trust's books as an unrealized loss from the date of
acquisition and will  be reflected  in realized  gain or  loss when  the put  is
exercised  or expires. Since the value of the put is dependent on the ability of
the put writer to meet  its obligation to repurchase,  the Trust's policy is  to
enter  into  put transactions  only with  municipal  securities dealers  who are
approved by the Trust's Board of Trustees.  Each dealer will be approved on  its
own  merits and it is the Trust's  general policy to enter into put transactions
only with those dealers which are determined to present minimal credit risks. In
connection with such  determination, the  Board of Trustees  will review,  among
other  things, the ratings, if available, of  equity and debt securities of such
municipal securities  dealers, their  reputations  in the  municipal  securities
markets,  the net  worth of  such dealers  and their  efficiency in consummating
transactions. Bank  dealers normally  will  be members  of the  Federal  Reserve
System,  and  other  dealers will  be  members  of the  National  Association of
Securities Dealers, Inc. or members of a national securities exchange. The Board
has directed the Investment Manager not to enter into put transactions with, and
to exercise outstanding puts of, any  municipal securities dealer which, in  the
judgment  of the  Investment Manager,  ceases at any  time to  present a minimal
credit risk. In  the event that  a dealer  should default on  its obligation  to
repurchase an underlying security, the Trust is unable to predict whether all or
any  portion of  any loss  sustained could  be subsequently  recovered from such
dealer. The Trust has not to date  and has no intention to purchase put  options
during the coming fiscal year.

    In  Revenue Ruling 82-144,  the Internal Revenue  Service stated that, under
certain circumstances, a purchaser of  tax-exempt obligations which are  subject
to  puts will be considered the owner  of the obligations for Federal income tax
purposes. In connection therewith, the Trust has received an opinion of  counsel
to  the effect that  interest on Municipal  Obligations subject to  puts will be
tax-exempt to the Trust.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    In addition to the investment restrictions enumerated in the Prospectus, the
investment  restrictions  listed  below  have  been  adopted  by  the  Trust  as
fundamental   policies,  except  as  otherwise   indicated.  Under  the  Act,  a
fundamental policy may  not be  changed without  the vote  of the  holders of  a
majority  of the outstanding voting  securities of the Trust,  as defined in the
Investment Company Act of 1940, as

Active Assets California Tax-Free Trust   6
<PAGE>
amended (the "Act"). Such a majority is defined in the Act as the lesser of  (a)
67%  or more of the shares present at a Meeting of Shareholders of the Trust, if
the holders of more than 50% of the outstanding shares of the Trust are  present
or  represented by proxy at the meeting, or (b) more than 50% of the outstanding
shares of  the Trust.  For  purposes of  the  following restrictions  and  those
recited  in the Prospectus:  (a) an "issuer"  of a security  is the entity whose
assets and revenues are  committed to the payment  of interest and principal  on
that  particular security,  provided that  the guarantee  of a  security will be
considered a separate  security; (b) a  "taxable security" is  any security  the
interest  on which  is subject  to federal  income tax;  and (c)  all percentage
limitations apply immediately after  a purchase or  initial investment, and  any
subsequent   change  in   any  applicable   percentage  resulting   from  market
fluctuations  or  other  changes  in  total  or  net  assets  does  not  require
elimination of any security from the portfolio.

    The  term "bank obligations"  as referred to in  Investment Restriction 3 in
the Prospectus  refers  to  short-term obligations  (including  certificates  of
deposit  and  bankers' acceptances)  of  banks (including  domestic  branches of
foreign banks) subject  to regulation by  the U.S. Government  and having  total
assets  of $1 billion or more, and  instruments secured by such obligations, not
including obligations of foreign branches of domestic banks.

    The Trust may not:

        1.  Invest in common stock.

        2.  Invest  in securities  of any  issuer if,  to the  knowledge of  the
    Trust, any officer or trustee of the Trust or any officer or director of the
    Investment Manager owns more than 1/2 of 1% of the outstanding securities of
    such issuer, and such officers, trustees and directors who own more than 1/2
    of  1% own in  the aggregate more  than 5% of  the outstanding securities of
    such issuer.

        3.  Purchase or sell real  estate or interests therein, although it  may
    purchase securities secured by real estate or interests therein.

        4.  Purchase or sell commodities or commodity futures contracts.

        5.    Purchase  oil, gas  or  other  mineral leases,  rights  or royalty
    contracts, or exploration or development programs.

        6.  Write, purchase or sell puts, calls, or combinations thereof  except
    that it may acquire rights to resell Municipal Obligations at an agreed upon
    price and at or within an agreed upon time.

        7.    Purchase  securities  of  other  investment  companies,  except in
    connection with a  merger, consolidation, reorganization  or acquisition  of
    assets.

        8.   Borrow money, except  that the Trust may borrow  from a bank or the
    Investment Manager  for  temporary  or emergency  purposes  in  amounts  not
    exceeding  5% (taken at the lower of cost  or current value) of the value of
    its total assets (not including the amount borrowed).

        9.  Pledge  its assets or  assign or otherwise  encumber them except  to
    secure  borrowings effected within the  limitations set forth in restriction
    (8). To meet the requirements of  regulations in certain states, the  Trust,
    as  a matter of operating policy but not as a fundamental policy, will limit
    any pledge of its assets to 10% of  its net assets so long as shares of  the
    Trust are being sold in those states.

        10.  Issue senior securities as defined in the Act except insofar as the
    Trust may be  deemed to  have issued  a senior  security by  reason of:  (a)
    purchasing any securities on a when-issued or delayed delivery basis; or (b)
    borrowing money in accordance with restrictions described above.

        11.  Make loans of money  or securities, except: (a)  by the purchase of
    debt  obligations  in  which  the  Trust  may  invest  consistent  with  its
    investment  objective  and policies;  and  (b) by  investment  in repurchase
    agreements.

        12. Make short sales of securities.

Active Assets California Tax-Free Trust   7
<PAGE>
        13. Purchase securities on margin,  except for such short-term loans  as
    are necessary for the clearance of purchases of portfolio securities.

        14.  Engage in  the underwriting  of securities,  except insofar  as the
    Trust may  be deemed  an underwriter  under the  Securities Act  of 1933  in
    disposing of a portfolio security.

        15.  Invest for the  purpose of exercising control  or management of any
    other issuer.

SPECIAL CONSIDERATIONS RELATING TO CALIFORNIA TAX-EXEMPT SECURITIES
- --------------------------------------------------------------------------------

    The Trust  will  be  affected  by  any  political,  economic  or  regulatory
developments  affecting the  ability of  California issuers  to pay  interest or
repay  principal  on  their  obligations.  Various  developments  regarding  the
California  Constitution and State statutes which  limit the taxing and spending
authority  of  California  governmental  entities  may  impair  the  ability  of
California  issuers to maintain debt service on their obligations. The following
information constitutes only a brief summary  and is not intended as a  complete
description.

    In  1978, Proposition  13, an amendment  to the  California Constitution was
approved, limiting real  property valuation  for property tax  purposes and  the
power  of local governments to increase  real property tax revenues and revenues
from other  sources.  Legislation  adopted after  Proposition  13  provided  for
assistance   to  local   governments,  including   the  redistribution   of  the
then-existing surplus in  the General  Fund, reallocation of  revenues to  local
governments,   and  assumption  by   the  State  of   certain  local  government
obligations. However,  more recent  legislation reduced  such state  assistance.
There  can  be no  assurance that  any particular  level of  State aid  to local
governments will  be maintained  in future  years. In  NORDLINGER V.  HAHN,  the
United  States Supreme Court upheld certain provisions of Proposition 13 against
claims that it violated the equal protection clause of the Constitution.

    In 1979,  an  amendment  was  passed  adding  Article  XIIIB  to  the  State
Constitution.  As  amended in  1990,  Article XIIIB  imposes  an "appropriations
limit" on the spending authority of the State and local government entities.  In
general,  the  appropriations limit  is based  on certain  1985-86 expenditures,
adjusted annually  to reflect  changes in  the cost  of living,  population  and
certain   services   provided   by   State   and   local   government  entities.
"Appropriations limit"  does not  include appropriations  for qualified  capital
outlay  projects, certain increases in transportation-related taxes, and certain
emergency appropriations.

    If a government entity raises revenues beyond its "appropriations limit"  in
any  year,  a portion  of the  excess  which cannot  be appropriated  within the
following year's limit  must be returned  to the entity's  taxpayers within  two
subsequent  fiscal  years,  generally  by  a  tax  credit,  refund  or temporary
suspension of tax rates or fee schedules. "Debt service" is excluded from  these
limitations,  and  is defined  as "appropriations  required to  pay the  cost of
interest and redemption charges, including the funding of any reserve or sinking
fund required  in  connection therewith,  on  indebtedness existing  or  legally
authorized  as of January 1, 1979  or on bonded indebtedness thereafter approved
[by the voters]." In addition, Article  XIIIB requires the State Legislature  to
establish  a prudent State reserve, and to require the transfer of 50% of excess
revenue to the State School Fund; any amounts allocated to the State School Fund
will increase the appropriations limit.

    In June 1982,  the voters of  California passed two  initiative measures  to
repeal  the  California gift  and inheritance  tax  laws and  to enact,  in lieu
thereof, California death  taxes. California  voters also  passed an  initiative
measure  to increase, for taxable years commencing  on or after January 1, 1982,
the amount to account for the effects of inflation. Decreases in State and local
revenues in future fiscal years as a consequence of these initiatives may result
in reductions in allocations of State  revenues to California issuers or in  the
ability of California issuers to pay their obligations.

    In   1986,  California  voters  approved  an  initiative  statute  known  as
Proposition  62.  This  initiative  (i)  requires  that  any  tax  for   general
governmental  purposes imposed by local governments be approved by resolution or
ordinance adopted by a two-thirds vote of the governmental entity's  legislative
body and

Active Assets California Tax-Free Trust   8
<PAGE>
by  a majority vote of the electorate  of the governmental entity, (ii) requires
that any special tax (defined as tax levied for other than general  governmental
purposes)  imposed by  a local governmental  entity be approved  by a two-thirds
vote of the voters within that jurisdiction, (iii) restricts the use of revenues
from a special tax to the purposes or for the service for which the special  tax
was  imposed, (iv) prohibits the imposition of ad valorem taxes on real property
by local  governmental  entities  except  as permitted  by  the  Proposition  13
amendment,  (v) prohibits the imposition of transaction taxes and sales taxes on
the sale  of real  property by  local governments,  (vi) requires  that any  tax
imposed  by a  local government  on or after  August 1,  1985, be  ratified by a
majority vote  of  the  electorate within  two  years  of the  adoption  of  the
initiative  or be terminated by  November 15, 1989, (vii)  requires that, in the
event a local government fails to comply with the provisions of this measure,  a
reduction  of  the  amount  of  property tax  revenue  allocated  to  such local
government occurs in  an amount equal  to the revenues  received by such  entity
attributable to the tax levied in violation of the initiative, and (vii) permits
these  provisions  to be  amended  exclusively by  the  voters of  the  State of
California.

    In September 1988, the California Court of Appeals in CITY OF WESTMINSTER V.
COUNTY OF ORANGE held that Proposition 62 is unconstitutional to the extent that
it requires a general tax  by a general city law  enacted on or after August  1,
1985,  and  prior to  the effective  date of  Proposition 62,  to be  subject to
approval  by  a  majority  of  voters.  The  Court  held  that  the   California
Constitution  prohibits the imposition of a  requirement that local tax measures
be submitted to  the electorate by  either referendum or  initiative. It is  not
possible  to predict the impact  of this decision on  charter cities, on special
taxes or on new taxes imposed after the effective date of Proposition 62.

    In 1988, State voters approved Proposition 87, which amended Article XVI  of
the   State  Constitution  to  authorize   the  State  Legislature  to  prohibit
redevelopment agencies  from  receiving  any property  tax  revenues  raised  by
increased  property taxes to repay bonded indebtedness of local government which
is not approved by voters  on or before January 1,  1989. It is not possible  to
predict  whether the State Legislature will enact  such a prohibition, nor is it
possible to predict the impact of  Proposition 87 on redevelopment agencies  and
their ability to make payments on outstanding debt obligations.

    In November 1988, California voters approved Proposition 98. This initiative
requires  that revenues  in excess  of amounts permitted  to be  spent and which
would otherwise  be returned  by revision  of  tax rates  or fee  schedules,  be
transferred  and allocated (up to a maximum of 40%) to the State School Fund and
be expended solely for purposes of instructional improvement and accountability.
No such transfer or allocation of  funds will be required if certain  designated
state  officials determine that annual student  expenditures and class size meet
certain criteria as  set forth  in Proposition 98.  Any funds  allocated to  the
State  School Fund shall cause the appropriation limits to be annually increased
for any such allocation made in the prior year. Proposition 98 also requires the
State of California to provide a minimum level of funding for public schools and
community colleges. The initiative permits the enactment of legislation, by on a
two-thirds vote, to suspend the minimum funding requirement for one year.

    In July 1991,  California increased  taxes by  adding two  new marginal  tax
rates,  at 10% and 11%,  effective for tax years  1991 through 1995. After 1995,
the maximum personal income  tax rate is  scheduled to return  to 9.3%, and  the
alternative  minimum tax rate is scheduled to drop from 8.5% to 7%. In addition,
legislation in July 1991  raised the sales  tax by 1.25%.  0.5% was a  permanent
addition  to counties, but  with the money  earmarked to trust  funds to pay for
health and welfare  programs whose administration  was transferred to  counties.
This  tax increase will be cancelled if a court rules that such transfer and tax
increase violate any constitutional requirements. 0.5% of the State tax rate was
scheduled to expire on June  30, 1993, but was extended  for six months for  the
benefit  of  counties  and  cities.  On  November  2,  1993,  voters  made  this
half-percent levy a permanent source of funding for local government.

    On November 3, 1992, voters approved an initiative statute, Proposition 163,
which exempts certain food products, including candy and other snack foods, from
California's sales tax. The sales tax had been broadened to include those  items
as  part  of  the  1991-92 budget  legislation.  The  State  Legislative Analyst
estimates a resultant revenue reduction of $300-$330 million per year.

Active Assets California Tax-Free Trust   9
<PAGE>
    The State is a party to  numerous legal proceedings, many of which  normally
occur  in governmental operations. In addition, the State is involved in certain
other legal proceedings that,  if decided against the  State, might require  the
State  to make significant future expenditures or impair future revenue sources.
Two such court cases  may upset California's budgetary  balance. In 1992-93  and
1993-94,  the  State met  part  of its  Proposition  98 commitment  to education
through $1.8 billion in off-book loans. These loans were held to be illegal in a
lower court decision, CALIFORNIA TEACHERS ASSOCIATION V. GOULD. If this decision
is upheld on appeal, the schools will not be required to repay these loans,  and
the  officially  recognized  1994-95  year-end deficit  would  increase  by $1.8
billion.  In  July,  1994,  a   federal  appeals  court  invalidated  the   Bush
Administration's  approval of a  5.8% welfare benefits  cut imposed in December,
1992. The ruling could  also nullify a further  2.7% reduction approved in  1993
and a 2.3% reduction scheduled to go into effect in September, 1994. It has been
estimated that, if the ruling is upheld on appeal, it could cost the State up to
$175 million per year in additional welfare benefit payments.

    California  is the most populous state in the nation with a total population
at the 1990 census of 29,976,000. Growth has been incessant since World War  II,
with  population gains in each decade since  1950 of between 18% and 48%. During
the last  decade,  population rose  20%.  The State  now  comprises 12%  of  the
nation's population and 13.3% of its total personal income. Its economy is broad
and  diversified  with  major  concentrations in  high  technology  research and
manufacturing, aerospace and defense-related manufacturing, trade, real  estate,
and financial services.

    Since  1990,  California has  faced the  worst  economic, fiscal  and budget
conditions since the 1930's. After experiencing strong growth throughout much of
the 1980's,  the State  was adversely  affected by  the national  recession  and
cutbacks  in aerospace  and defense  spending, both of  which have  had a severe
impact on the economy in Southern California. The State's tax revenue experience
clearly reflects sharp  declines in  employment, income  and retail  sales on  a
scale  not seen  in over  fifty years.  Although the  national economic recovery
continued at a strong  pace in the  first quarter of  1994, California is  still
experiencing  the  effects of  the recession.  However,  the State's  budget for
fiscal  year  1994-95  assumes  that  the  State  will  begin  to  recover  from
recessionary  conditions in 1994, with a modest upturn in 1994 and continuing in
1995.

    These economic difficulties have exacerbated the structural budget imbalance
which has been  evident since  fiscal year  1985-1986. Since  that time,  budget
shortfalls  have  become increasingly  more difficult  to  solve. The  State has
recorded General Fund operating deficits in  five of the past six fiscal  years.
Many  of  these problems  have  been attributable  to  the fact  that  the great
population influx  has  produced  increased  demand  for  education  and  social
services  at a  far greater pace  than the  growth in the  State's tax revenues.
Despite substantial tax increases, expenditure reductions and the shift of  some
expenditure  responsibilities to local government,  the budget condition remains
problematic.

    On July 8, 1994, the Governor signed into law a $57.5 billion budget  which,
among  other things: (a) reduces  welfare grants and aid  to families and to the
aged, blind and disabled, and (b) relies  on the State's ability to obtain  $2.8
billion in new reimbursement from the federal government for the State's cost of
serving  illegal immigrants. Although the State legislature has passed a standby
measure which could trigger  automatic budget reductions  if the state's  fiscal
condition  worsens over the next two years, the stability of the budget would be
jeopardized if the state is unable to obtain the hoped-for federal funds.

    The current budget includes General Fund spending of $40.9 billion, up  4.2%
from  the level  of spending  during the  1993-94 fiscal  year. The  budget also
envisions General  Fund spending  climbing another  8.4% in  the 1995-96  fiscal
year. The budget forecasts levels of revenues and expenditures which will result
in  operating surpluses in both 1994-95  and 1995-96, leading to the elimination
of an estimated $2.0 billion accumulated budget deficit by June 30, 1996.

    Because of the State of California's continuing budget problems, the State's
General Obligation bonds were downgraded in July 1994 from Aa to A1 by  Moody's,
to  A from A+ by Standard & Poor's, and from AA to A by Fitch Investors Service,
Inc. All three rating agencies expressed  uncertainty in the State's ability  to
balance its budget by 1996.

Active Assets California Tax-Free Trust   10
<PAGE>
    On  January 17, 1994, Northridge,  California experienced an earthquake that
registered 6.7 on the Richter Scale resulting in significant property damage  to
private  and public facilities throughout Los  Angeles and Ventura Counties, and
to parts of  Orange and San  Bernardino Counties. The  effected portions of  the
counties  were declared to be federal and state disaster areas. The total damage
is estimated to be  between $13 billion  and $20 billion.  The cost to  federal,
state and local government is estimated to be $11.6 billion with the State's and
local  governments'  share  estimated  to  be  $1.9  billion  and  $135 million,
respectively. In  mid-February  1994,  Congress approved  an  earthquake  relief
package  totaling about  $8.6 billion,  bringing total  federal support  to $9.5
billion. The California legislature approved  $2 billion in bond refinancing  in
mid-March  1994 for earthquake  recovery costs and  seismic safety improvements.
However, the  bond issue  was rejected  by California  voters in  the June  1994
election.  It now appears that the state will  pay for its share of the recovery
costs through a reallocation  of existing funds and  borrowing from the  federal
government.

    The  bipartisan Commission on  State Finance believes  that, although it may
carry long-term implications for  the City of Los  Angeles, the earthquake  will
not derail the state's economic recovery.

    The  effect  of these  various constitutional  and statutory  amendments and
budget developments upon the ability of  California issuers to pay interest  and
principal  on their obligations remains unclear and in any event may depend upon
whether a  particular California  tax-exempt security  is a  general or  limited
obligation  bond  and on  the  type of  security provided  for  the bond.  It is
possible that  other measures  affecting  the taxing  or spending  authority  of
California  or  its political  subdivisions may  be approved  or enacted  in the
future.

HOW NET ASSET VALUE IS DETERMINED
- --------------------------------------------------------------------------------

    As discussed in the Appendix to the  Prospectus, the net asset value of  the
Trust  is determined as of 12  noon New York time on  each day that the New York
Stock Exchange  is open.  The New  York Stock  Exchange currently  observes  the
following  holidays: New Year's Day; President's Day; Good Friday; Memorial Day;
Independence Day; Labor Day; Thanksgiving Day; and Christmas Day.

    The Trust  utilizes  the amortized  cost  method in  valuing  its  portfolio
securities  for  purposes of  determining  the net  asset  value of  the Trust's
shares. The Trust utilizes  the amortized cost method  in valuing its  portfolio
securities  even though  the portfolio  securities may  increase or  decrease in
market value,  generally, in  connection  with changes  in interest  rates.  The
amortized  cost  method of  valuation involves  valuing a  security at  its cost
adjusted by a  constant amortization  to maturity  of any  discount or  premium,
regardless  of the impact of  fluctuating interest rates on  the market value of
the instrument. While this method provides certainty in valuation, it may result
in periods during  which value, as  determined by amortized  cost, is higher  or
lower  than the price the Trust would  receive it if sold the instrument. During
such periods, the yield to investors in the Trust may differ somewhat from  that
obtained  in a  similar company  which uses  mark to  market values  for all its
portfolio securities. For example,  if the use of  amortized cost resulted in  a
lower  (higher) aggregate  portfolio value  on a  particular day,  a prospective
investor in the Trust would  be able to obtain  a somewhat higher (lower)  yield
than  would  result  from investment  in  such  a similar  company  and existing
investors would  receive less  (more)  investment income.  The purpose  of  this
method  of calculation is to facilitate the  maintenance of a constant net asset
value per share of $1.00.

    The Trust's  use  of  the  amortized cost  method  to  value  its  portfolio
securities  and the  maintenance of the  per share  net asset value  of $1.00 is
permitted pursuant to Rule 2a-7 of the  Act (the "Rule"), and is conditioned  on
its  compliance with various conditions contained in the Rule including: (a) the
Trust's Trustees  are  obligated,  as a  particular  responsibility  within  the
overall  duty of care owed to  the Trust's shareholders, to establish procedures
reasonably designed,  taking  into account  current  market conditions  and  the
Trust's  investment objectives,  to stabilize the  net asset value  per share as
computed for the purpose of distribution and redemption at $1.00 per share;  (b)
(i)  the procedures include calculation, at  such intervals as are reasonable in
light of current market conditions, of  the deviation, if any between net  asset
value per share using amortized cost to value portfolio securities and net asset
value per share

Active Assets California Tax-Free Trust   11
<PAGE>
based upon available market quotations with respect to such portfolio securities
(for  the purpose of determining market value,  securities as to which the Trust
has a "put" will  be valued at  the higher of market  value or exercise  price);
(ii)  periodic review  by the  Trustees of  the amount  of deviation  as well as
methods used to calculate  it, and (iii) maintenance  of written records of  the
procedures,  the Trustees' considerations made pursuant  to them and any actions
taken upon such consideration; the Trustees  will consider what steps should  be
taken,  if any, in the event of a difference  of more than 1/2 of 1% between the
two methods of valuation; and (d) the  Trustees should take such action as  they
deem  appropriate to eliminate or reduce,  to the extent reasonably practicable,
material dilution or other unfair results to investors or existing shareholders.
Such action  may include:  selling portfolio  instruments prior  to maturity  to
realize  capital gains or losses or to shorten the average portfolio maturity of
the Trust;  withholding dividends;  utilizing a  net asset  value per  share  as
determined  by using available  market quotations or reducing  the number of its
outstanding shares.  Any reduction  of outstanding  shares will  be effected  by
having  each  shareholder proportionately  contribute to  the Trust's  capital a
number of  shares which  represent  the difference  between the  amortized  cost
valuation and market valuation of the portfolio. Each shareholder will be deemed
to have agreed to such contribution by his or her investment in the Trust.

    The  Rule  further requires  that the  Trust limit  its investments  to U.S.
dollar-denominated instruments  which  the Trustees  determine  present  minimal
credit risks and which are Eligible Securities (as defined below). The Rule also
requires the Trust to maintain a dollar-weighted average portfolio maturity (not
more  than 90  days) appropriate  to its objective  of maintaining  a stable net
asset value of $1.00 per share and precludes the purchase of any instrument with
a remaining  maturity  of  more than  397  days.  Should the  disposition  of  a
portfolio  security result  in a  dollar-weighted average  portfolio maturity of
more than 90 days, the Trust will invest its available cash in such a manner  as
to reduce such maturity to 90 days or less as soon as is reasonably practicable.

    At  the  time  the  Trust  makes  the  commitment  to  purchase  a Municipal
Obligation on  a when-issued  or  delayed delivery  basis,  it will  record  the
transaction  and  thereafter  reflect  the value,  each  day,  of  the Municipal
Obligation in determining its net asset value. Repurchase agreements are  valued
at  the face value of the repurchase agreement plus any accrued interest thereon
to date.

    Generally, for  purposes  of the  procedures  adopted under  the  Rule,  the
maturity  of  a  portfolio  instrument  is to  be  deemed  the  period remaining
(calculated from the trade date or such other date on which the Trust's interest
in the instrument is subject to market action) until the date noted on the  face
of  the instrument as the date on which the principal amount must be paid, or in
the case  of  an  instrument  called  for redemption,  the  date  on  which  the
redemption payment must be made.

    A  variable rate obligation that is subject to a demand feature is deemed to
have a maturity  equal to  the longer  of the  period remaining  until the  next
readjustment  of the interest  rate or the period  remaining until the principal
amount can  be recovered  through demand.  A floating  rate instrument  that  is
subject  to a demand  feature is deemed to  have a maturity  equal to the period
remaining until the principal amount can be recovered through demand.

    An Eligible Security is defined  in the Rule to  mean a security which:  (a)
has a remaining maturity of thirteen months or less; (b) (i) is rated in the two
highest  short-term  rating categories  by  any two  NRSROs  that have  issued a
short-term rating with respect to the  security or class of debt obligations  of
the  issuer,  or (ii)  if only  one NRSRO  has issued  a short-term  rating with
respect to the security, then by that NRSRO; (c) was a long-term security at the
time of issuance whose issuer has outstanding a short-term debt obligation which
is comparable in priority and security and  has a rating as specified in  clause
(b)  above; or (d) if no rating is  assigned by any NRSRO as provided in clauses
(b) and (c)  above, the unrated  security is determined  by the Board  to be  of
comparable quality to any such rated security.

    As  permitted by the Rule, the Board has delegated to the Trust's Investment
Manager, subject to the Board's oversight pursuant to guidelines and  procedures
adopted  by  the  Board, the  authority  to determine  which  securities present
minimal credit risks and which unrated  securities are comparable in quality  to
rated securities.

Active Assets California Tax-Free Trust   12
<PAGE>
    Also,  as required  by the  Rule, the  Trust will  limit its  investments in
securities, other than Government securities, so that, at the time of  purchase:
(a) except as further limited in (b) below with regard to certain securities, no
more  than 5% (10% if a  guarantee) of its total assets  will be invested in the
securities of any one issuer; and  (b) with respect to Eligible Securities  that
have  received a  rating in  less than the  highest category  by any  one of the
NRSROs whose ratings are used to  qualify the security as an Eligible  Security,
or  determined to be of comparable quality: (i) no more than 5% will be invested
in the aggregate of the Trust's total assets in all such securities, and (ii) no
more than the greater of 1% of total assets, or $1 million, will be invested  in
the securities of any one issuer.

    If  the Board determines that  it is no longer in  the best interests of the
Trust and its shareholders to maintain a stable price of $1 per share or if  the
Board believes that maintaining such price no longer reflects a market-based net
asset  value per share, the Board has the right to change from an amortized cost
basis of  valuation to  valuation based  on market  quotations. The  Trust  will
notify shareholders of any such changes.

    The  Trust will  manage its  portfolio in an  effort to  maintain a constant
$1.00 per share price, but  it cannot assure that the  value of its shares  will
never  deviate from the $1.00 price.  Since dividends from net investment income
are declared and reinvested  on a daily  basis, the net  asset value per  share,
under  ordinary  circumstances,  is  likely  to  remain  constant.  Realized and
unrealized gains and losses will not be distributed on a daily basis but will be
reflected in the Trust's net  asset value. The amount  of such gains and  losses
will  be considered  by the Trustees  in determining  the action to  be taken to
maintain the Trust's $1.00  per share net asset  value. Such action may  include
distribution  at any time of  part or all of  the then accumulated undistributed
net realized capital gains, or reduction or elimination of daily dividends by an
amount equal to part or all of the then accumulated net realized capital losses.
However, if realized losses should exceed the sum of net investment income  plus
realized  gains on  any day,  the net asset  value per  share on  that day might
decline below $1.00 per  share. In such circumstances,  the Trust may reduce  or
eliminate  the payment of daily  dividends for a period of  time in an effort to
restore the Trust's  $1.00 per share  net asset  value. A decline  in prices  of
securities  could result  in significant  unrealized depreciation  on a  mark to
market basis. In  these circumstances,  the Trust  may reduce  or eliminate  the
payment  of dividends and utilize  a net asset value  per share as determined by
using available  market  quotations or  reduce  the number  of  its  outstanding
shares.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

    As  stated in the Appendix  to the Prospectus, the  Trust intends to declare
dividends, payable on each day the New York Stock Exchange is open for business,
of all of its net investment income to shareholders of record as of 12 noon  New
York time of the preceding business day.

    In  computing  interest income,  the Trust  will  amortize any  premiums and
original issue discounts on securities  owned. Capital gains or losses  realized
upon sale or maturity of such securities will be based on their amortized cost.

    Gains  or losses on the  sales of securities by  the Trust will be long-term
capital gains or losses if the securities  have been held by the Trust for  more
than  twelve months. Gains or  losses on the sale  of securities held for twelve
months or less will be short-term capital gains or losses.

    At  June  30,  1994,  the  Trust  had  a  net  capital  loss  carryover   of
approximately  $16,000 which will  be available through June  30, 2002 to offset
future capital gains  to the  extent provided  by regulations.  Any net  capital
losses  incurred after  October 31  ("Post--October losses")  within the taxable
year are deemed to arise on the  first business day of the Trust's next  taxable
year.   The  Trust  incurred  and  elected   to  defer  net  capital  losses  of
approximately $900 during its fiscal year ended June 30, 1994.

    The Trustees may  revise the  dividend policy,  or postpone  the payment  of
dividends,  if the Trust should have or anticipate any large unexpected expense,
loss or fluctuation in net assets which,  in the opinion of the Trustees,  might
have  a significant  adverse effect  on shareholders.  On occasion,  in order to
maintain a constant  $1.00 per share  net asset value,  the Trustees may  direct
that  the number of outstanding shares be reduced in each shareholder's account.
Such reduction may result in taxable

Active Assets California Tax-Free Trust   13
<PAGE>
income, if any, to a shareholder in excess of the net increase (i.e., dividends,
less such  reductions), if  any,  in the  shareholder's  account for  a  period.
Furthermore,  such reduction may be  realized as a capital  loss when the shares
are liquidated.

    As discussed in the Prospectus, the Trust intends to invest a portion of its
assets in certain  "private activity bonds"  issued after August  7, 1986. As  a
result,  a portion of the exempt-interest dividends paid by the Trust will be an
item of tax  preference for  taxable years  beginning after  December 31,  1986.
Certain  corporations which are subject to  the alternative minimum tax may also
have to  include  exempt-interest  dividends in  calculating  their  alternative
minimum  taxable income in  situations where the  "adjusted current earnings" of
the corporation exceeds its preadjustment alternative minimum taxable income.

    The Trust  has qualified  and intends  to remain  qualified as  a  regulated
investment  company under Subchapter M  of the Code. If  so qualified, the Trust
will not be  subject to  federal income  and excise  tax on  its net  investment
income  and capital gains, if  any, realized during any  fiscal year in which it
distributes such income and capital gains to its shareholders.

    As discussed  in  the  Prospectus,  the Trust  intends  to  qualify  to  pay
"exempt-interest  dividends" to its shareholders by maintaining, as of the close
of each  of  its  taxable years,  at  least  50% of  its  assets  in  tax-exempt
securities.  An exempt-interest dividend is that part of a dividend distribution
made by the Trust which consists of interest received by the Trust on tax-exempt
securities  upon  which  the  shareholder   incurs  no  federal  income   taxes.
Exempt-interest dividends are included, however, in determining what portion, if
any,  of a person's Social  Security benefits are subject  to federal income tax
and in certain circumstances  may affect the  determination of the  supplemental
premium applicable to Medicare eligible individuals.

    Alternative minimum taxable income is generally equal to taxable income with
certain  adjustments and increased  by certain "tax  preference items" which may
include a portion of the Trust's dividends as described above. In addition,  the
Code  further provides that for taxable  years beginning in 1990 and thereafter,
corporations are subject to an alternative minimum tax based, in part, on 75% of
any excess of "adjusted  current earnings" over taxable  income as adjusted  for
other  tax preferences.  Because an exempt-interest  dividend paid  by the Trust
will be  included in  adjusted  current earnings,  a corporate  shareholder  may
therefore  be required to pay an increased alternative minimum tax as the result
of receiving exempt-interest dividends paid by the Trust.

    The Superfund Amendments  and Reauthorization  Act of  1986 (the  "Superfund
Act")  imposes a deductible  tax on a  corporation's alternative minimum taxable
income (computed  without  regard to  the  alternative tax  net  operating  loss
deduction)  at a rate of $12 per  $10,000 (0.12%) of alternative minimum taxable
income in  excess of  $2,000,000. The  tax  will be  imposed for  taxable  years
beginning  after December 31, 1986  and before January 1,  1996. The tax will be
imposed even if the  corporation is not required  to pay an alternative  minimum
tax  because the corporation's regular income  tax liability exceeds its minimum
tax  liability.  Exempt-interest  dividends  paid  by  the  Trust  that   create
alternative  minimum tax preferences  for corporate shareholders  under the Code
(as described above) may be subject to the tax.

    Within 60 days  after the end  of its fiscal  year, the Trust  will mail  to
shareholders a statement indicating the percentage of the dividend distributions
for  such  fiscal  year  which  constitutes  exempt-interest  dividends  and the
percentage, if any, that is taxable, and  to what extent the taxable portion  is
long-term  capital  gain,  short-term  capital  gain  or  ordinary  income. This
percentage should be applied uniformly to all monthly distributions made  during
the fiscal year to determine the proportion of dividends that is tax-exempt. The
percentage  may differ from the  percentage of tax-exempt dividend distributions
for any particular month.

    Shareholders will be subject  to federal income tax  on dividends paid  from
interest income derived from taxable securities and on distributions of realized
net  short-term capital gains. Such interest and realized net short-term capital
gains dividends and  distributions are  taxable to the  shareholder as  ordinary
dividend   income   regardless  of   whether   the  shareholder   receives  such
distributions in  additional  shares  or in  cash.  Distributions  of  long-term
capital   gains,   if   any,   are   taxable   as   long-term   capital   gains,

Active Assets California Tax-Free Trust   14
<PAGE>
regardless of how long the shareholder  has held the Fund shares and  regardless
of  whether the distribution is received in additional shares or cash. Since the
Trust's income is  expected to  be derived  entirely from  interest rather  than
dividends,  it is anticipated  that none of such  dividend distributions will be
eligible for the federal dividends received deduction available to corporations.

    Any loss on the sale or exchange of shares of the Trust which are held for 6
months or less is disallowed to the extent of the amount of any  exempt-interest
dividend  paid with respect to such shares. Treasury Regulations may provide for
a reduction in such required holding periods.

    The Code requires each regulated  investment company to pay a  nondeductible
4%  excise  tax to  the  extent the  company  does not  distribute,  during each
calendar year, 98% of its ordinary income, determined on a calendar year  basis,
and  98% of its capital gains, determined in  general on an October 31 year end,
plus  certain   undistributed  amounts   from  previous   years.  The   required
distributions,  however, are  based only  on the  taxable income  of a regulated
investment company such as the Trust, which pays exempt-interest dividends.  The
Trust  anticipates that  it will make  sufficient timely  distributions to avoid
imposition of the excise tax.

    Interest on indebtedness incurred or continued by a shareholder to  purchase
or carry shares of the Trust is not deductible. Furthermore, entities or persons
who  are  "substantial users"  (or related  persons)  of facilities  financed by
industrial development bonds should consult their tax advisers before purchasing
shares of  the Trust.  "Substantial user"  is defined  generally by  Income  Tax
Regulation 1.103-11 (b) as including a "non-exempt person" who regularly uses in
a  trade  or  business  a part  of  a  facility financed  from  the  proceeds of
industrial development bonds.

    From time to time,  proposals have been introduced  before Congress for  the
purpose  of  restricting or  eliminating the  federal  income tax  exemption for
interest on municipal  securities. Similar  proposals may be  introduced in  the
future.  If such a proposal  were to be enacted,  the availability of tax-exempt
municipal securities for  investment by  the Trust  could be  affected. If  such
legislation  is enacted, the  Trust may reevaluate  its investment objective and
policies.

    The exemption of interest  income for federal income  tax purposes does  not
necessarily  result in exemption under the income or other tax laws of any state
or local taxing  authority. Thus, shareholders  of the Trust  may be subject  to
state  and local taxes on exempt-interest dividends. Shareholders should consult
their tax advisers about  the status of  dividends from the  Trust in their  own
states  and  localities.  The Trust  will  report annually  to  shareholders the
percentage of interest income received by the Trust during the preceding year on
tax-exempt obligations, indicating,  on a  state-by-state basis,  the source  of
such income.

    Under   present  Massachusetts  law,  the  Trust   is  not  subject  to  any
Massachusetts income tax during any fiscal year in which the Trust qualifies  as
a  regulated investment  company. The  Trust might  be subject  to Massachusetts
income taxes for any taxable year in which it does not so qualify as a regulated
investment company.

    To the  extent  that  dividends  are derived  from  interest  on  California
tax-exempt  securities and on certain U.S. government securities, such dividends
will also be exempt from California personal income taxes. Under California law,
a fund which qualifies as a regulated investment company must have at least  50%
of  its total assets invested in California  state and local issues, and in U.S.
obligations which, if held by an individual, would pay interest excludable  from
income or in a combination of such obligations at the end of each quarter of its
taxable  year in order to  be eligible to pay  dividends to California residents
which will be exempt from California personal income taxes. Unlike federal  law,
California  law provides that  no portion of  the exempt-interest dividends will
constitute an item of tax preference for California personal income  alternative
minimum  tax purposes. In addition, unlike  federal law, the California personal
income tax does  not apply  to any portion  of an  individual's Social  Security
benefits.

    For California personal income tax purposes, distributions paid from capital
gains  are  taxable as  ordinary income.  In addition,  unlike federal  law, the
shareholders of the Trust will  not be subject to tax,  or receive a credit  for
taxes  paid by  the Trust,  on undistributed  capital gains,  if any.  Under the
California Revenue  and  Taxation Code,  interest  on indebtedness  incurred  or
continued   to  purchase  or  carry  shares  of  an  investment  company  paying
exempt-interest dividends, such  as the  Trust, will  not be  deductible by  the
investor for state personal income tax purposes.

Active Assets California Tax-Free Trust   15
<PAGE>
    The  foregoing relates to federal income taxation and to California personal
income taxation as  in effect as  of the date  of the Prospectus.  Distributions
from interest income and capital gains, including exempt-interest dividends, may
be  subject to  California franchise  taxes if  received by  a corporation doing
business in California, to  state taxes in states  other than California and  to
local taxes.

    Any  dividends or capital gains distributions received by a shareholder from
any investment company will have the effect  of reducing the net asset value  of
the  shareholder's stock in  that fund by  the exact amount  of the dividends or
capital gains distribution.  Furthermore, capital gains  distributions are,  and
some  portion of the dividends  may be, subject to income  tax. If the net asset
value of the shares should be reduced below a shareholder's cost as a result  of
the  distribution  of realized  net long-term  capital gains,  such distribution
would be a  return of capital  but nonetheless taxable  at capital gains  rates.
Therefore,  an investor should not purchase  Trust shares immediately prior to a
distribution record date  and sell  them immediately thereafter  solely for  the
purpose of receiving the distribution.

INFORMATION ON COMPUTATION OF YIELD

    The  Trust's annualized current yield, as may be quoted from time to time in
advertisements and other communications to shareholders and potential investors,
is computed  by determining,  for a  stated seven-day  period, the  net  change,
exclusive  of  capital  changes and  including  the value  of  additional shares
purchased with dividends  and any  dividends declared  therefrom (which  reflect
deductions  of all expenses of the Trust  such as management fees), in the value
of a hypothetical  pre-existing account  having a balance  of one  share at  the
beginning of the period, and dividing the difference by the value of the account
at  the beginning of the base period to  obtain the base period return, and then
multiplying the base period return by (365/7).

    The Trust's annualized effective yield, as  may be quoted from time to  time
in  advertisements  and  other  communications  to  shareholders  and  potential
investors, is computed by determining (for  the same stated seven-day period  as
for  the  current  yield), the  net  change,  exclusive of  capital  changes and
including the  value  of additional  shares  purchased with  dividends  and  any
dividends  declared therefrom (which  reflect deductions of  all expenses of the
Trust such as  management fees),  in the  value of  a hypothetical  pre-existing
account  having  a balance  of one  share at  the beginning  of the  period, and
dividing the difference by the value of the account at the beginning of the base
period to obtain the  base period return, and  then compounding the base  period
return  by adding 1, raising the  sum to a power equal  to 365 divided by 7, and
subtracting 1 from the result.

    The yields quoted in any advertisement or other communication should not  be
considered  a representation of the yields of  the Trust in the future since the
yield is not fixed. Actual yields will depend not only on the type, quality  and
maturities of the investments held by the Trust and changes in interest rates on
such investments, but also on changes in the Trust's expenses during the period.

    Yield  information may be  useful in reviewing the  performance of the Trust
and for providing  a basis  for comparison with  other investment  alternatives.
However,  unlike bank deposits or other  investments which typically pay a fixed
yield for a stated period of time, the Trust's yield fluctuates.

    Tax-equivalent yield is  computed by  dividing that portion  of the  current
yield  (calculated as described above)  which is tax-exempt by  1 minus a stated
tax rate and adding the  quotient to that portion, if  any, of the yield of  the
Trust that is not tax-exempt.

    The  Trust's current yield for the seven days ended June 30, 1994 was 2.02%.
The effective annual yield on 2.02% is 2.04%, assuming daily compounding.

    Based upon a combined Federal and California personal income tax bracket  of
46.24%,  the Trust's tax-equivalent yield for the seven days ended June 30, 1994
was 3.76%. Tax-equivalent  yield is  computed by  dividing that  portion of  the
current  yield (calculated as described above) which  is tax-exempt by 1 minus a
stated tax rate and adding the quotient to that portion, if any, of the yield of
the Trust that is not tax-exempt.

Active Assets California Tax-Free Trust   16
<PAGE>
STATEMENTS OF ADDITIONAL INFORMATION
AUGUST 22, 1994                                                           [LOGO]

- --------------------------------------------------------------------------------

    Active  Assets Money Trust (the "Money Trust"  or the "Trust") is a no-load,
diversified open-end management investment  company whose investment  objectives
are  high current income, preservation of capital and liquidity. The Money Trust
seeks to  achieve its  objectives by  investing in  a diversified  portfolio  of
short-term money market instruments.

    Active  Assets Tax-Free  Trust (the  "Tax-Free Trust"  or the  "Trust") is a
no-load, diversified  open-end management  investment company  whose  investment
objective  is to  provide as high  a level  of daily income  exempt from federal
personal income tax as is consistent with stability of principal and  liquidity.
The Tax-Free Trust seeks to achieve its objective by investing primarily in high
quality tax-exempt securities with short-term maturities.

    Active  Assets California Tax-Free Trust (the "California Tax-Free Trust" or
the "Trust") is  a no-load, diversified  open-end management investment  company
whose  investment objective is to provide as high a level of daily income exempt
from federal and California personal income tax as is consistent with  stability
of  principal and liquidity. The California  Tax-Free Trust seeks to achieve its
objective by  investing primarily  in high  quality tax-exempt  securities  with
short-term maturities.

    Active Assets Government Securities Trust (the "Government Securities Trust"
or the "Trust") is a no-load, diversified open-end management investment company
whose investment objectives are high current income, preservation of capital and
liquidity.  The Government  Securities Trust seeks  to achieve  its objective by
investing in U.S. Government securities, including a variety of securities which
are issued  or guaranteed  by  the United  States  Government, its  agencies  or
instrumentalities.

    Prospectuses  for  the  Money  Trust,  the  Tax-Free  Trust,  the California
Tax-Free Trust and the Government Securities  Trust, all dated August 22,  1994,
which  provide the basic information you should  know before investing in any of
the aforementioned Trusts, may be obtained without charge from any of the Trusts
at the address or telephone number listed below. These Statements of  Additional
Information  are not Prospectuses.  They contain information  in addition to and
more detailed than  that set  forth in the  Prospectuses. They  are intended  to
provide  additional information regarding  the activities and  operations of the
Trusts, and should be read in conjunction with the Prospectuses. They should  be
read  with the information appearing  in the Appendix hereto  which is a part of
these Statements of Additional Information.

Active Assets Money Trust
Active Assets Tax-Free Trust
Active Assets California Tax-Free Trust
Active Assets Government Securities Trust

Two World Trade Center
New York, New York 10048
(212) 392-2550

    The shares of the Money Trust,  the Tax-Free Trust, the California  Tax-Free
Trust  and the  Government Securities Trust  are offered to  participants in the
Active Assets Account program of Dean  Witter Reynolds Inc. ("Dean Witter").  In
addition,  shares of the  Trusts are offered  to investors maintaining brokerage
accounts with Dean Witter who are not subscribers to the Active Assets  program.
For  further information,  either consult  the Dean  Witter Client  Agreement or
consult your Dean Witter Account Executive.

Active Assets Government Securities Trust
<PAGE>
ACTIVE ASSETS GOVERNMENT SECURITIES TRUST
TABLE OF CONTENTS
- --------------------------------------------------------------------------------

<TABLE>
<S>                                                                    <C>
Investment Practices and Policies.....................................     3

Investment Restrictions...............................................     4

How Net Asset Value is Determined.....................................     5

Dividends, Distributions and Taxes....................................     7

APPENDIX

Investment Manager....................................................   A-1

Trustees and Officers.................................................   A-7

Portfolio Transactions and Brokerage..................................  A-11

General Information...................................................  A-12

Custodian and Transfer Agent..........................................  A-12

Independent Accountants...............................................  A-13

Reports to Shareholders...............................................  A-13

Legal Counsel.........................................................  A-13

Experts...............................................................  A-13

Registration Statement................................................  A-13

Information with Respect to Securities Ratings........................  A-14
</TABLE>

                                       2
Active Assets Government Securities Trust
<PAGE>
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------

    REPURCHASE AGREEMENTS.  As discussed in the Prospectus, the Trust may  enter
into  repurchase  agreements  with  financial  institutions.  The  Trust follows
certain procedures,  adopted by  its Trustees,  designed to  minimize the  risks
inherent  in  such  agreements. These  procedures  include  effecting repurchase
transactions only with  large, well capitalized  and well established  financial
institutions  whose  financial  condition  will  be  continuously  monitored. In
addition, the value of the  collateral underlying the repurchase agreement  will
always be at least equal to the repurchase price, including any accrued interest
earned  on the repurchase agreement. Such  collateral will consist of Government
securities or "Eligible  Securities" (as  described under the  caption "How  Net
Asset  Value  is  Determined")  rated  in  the  highest  grade  by  a nationally
recognized statistical rating organization (a "NRSRO") whose ratings qualify the
collateral security as  an "Eligible  Security". In the  event of  a default  or
bankruptcy  by a selling financial institution, the Trust will seek to liquidate
such collateral. However, the exercising of the Trust's right to liquidate  such
collateral  could  involve  certain costs  or  delays  and, to  the  extent that
proceeds from any sale upon a default of the obligation to repurchase were  less
than  the repurchase  price, the Trust  could suffer  a loss. It  is the current
policy of the Trust not  to invest in repurchase  agreements that do not  mature
within  seven  days if  any such  investment, together  with any  other illiquid
assets held by  the Trust, amounts  to more than  10% of its  total assets.  The
Trust's  investments in repurchase agreements may  at times be substantial when,
in the view of the Trust's investment manager, liquidity or other considerations
warrant.

    REVERSE REPURCHASE AGREEMENTS.   The Trust may  also use reverse  repurchase
agreements  as part of its investment strategy, but to date has not entered into
nor does it  have any intention  of entering into  any such agreements.  Reverse
repurchase   agreements  involve  sales   by  the  Trust   of  portfolio  assets
concurrently with an agreement by the Trust  to repurchase the same assets at  a
later date at a fixed price. Generally, the effect of such a transaction is that
the  Trust  can  recover all  or  most of  the  cash invested  in  the portfolio
securities involved during the term  of the reverse repurchase agreement,  while
it  will be  able to  keep the interest  income associated  with those portfolio
securities. Such transactions are only advantageous if the interest cost to  the
Trust  of the reverse repurchase transaction is  less than the cost of otherwise
obtaining the cash. Opportunities  to achieve this advantage  may not always  be
available,  and the Trust  intends to use the  reverse repurchase technique only
when it will be to its advantage to do so. The Trust will establish a segregated
account with  its  custodian  bank  in  which it  will  maintain  cash  or  cash
equivalents or other portfolio securities equal in value to its obligations with
respect  to  reverse repurchase  agreements.  Reverse repurchase  agreements are
considered borrowings by the Trust.

    LENDING OF PORTFOLIO  SECURITIES.   Subject to  investment restriction  (11)
below, the Trust may lend portfolio securities to brokers, dealers and financial
institutions  provided that cash equal  to at least 100%  of the market value of
the securities  loaned  is deposited  by  the borrower  with  the Trust  and  is
maintained  each business  day in  a segregated  account pursuant  to applicable
regulations. While such securities are on loan, the borrower will pay the  Trust
any  income accruing thereon,  and the Trust  may invest the  cash collateral in
portfolio securities, thereby earning additional income. The Trust will not lend
its portfolio  securities  if  such loans  are  not  permitted by  the  laws  or
regulations of any state in which its shares are qualified for sale and will not
lend  more than 10%  of the value  of its total  assets. The creditworthiness of
firms to which the Trust lends its portfolio securities will be monitored on  an
ongoing  basis. Loans would be subject to termination by the Trust in the normal
settlement time, currently two business days after notice, or by the borrower on
one day's  notice.  Borrowed  securities  must be  returned  when  the  loan  is
terminated.  Any gain  or loss  in the market  price of  the borrowed securities
which occurs  during  the  term  of  the  loan  inures  to  the  Trust  and  its
shareholders.  The Trust may pay  reasonable finders, borrowers, administrative,
and custodial fees in connection with a loan. During its fiscal year ended  June
30,  1994, the Trust did not lend any  of its portfolio securities and it has no
intention of doing so in the foreseeable future.

                                       3
Active Assets Government Securities Trust
<PAGE>
    WHEN-ISSUED  AND  DELAYED  DELIVERY  SECURITIES.     As  discussed  in   the
Prospectus, from time to time, in the ordinary course of business, the Trust may
purchase  securities on a when-issued  or delayed delivery basis--i.e., delivery
and payment can take place  a month or more after  the date of the  transaction.
While  the  Trust will  only  purchase securities  on  a when-issued  or delayed
delivery basis with  the intention of  acquiring the securities,  the Trust  may
sell  the securities before the settlement date,  if it is deemed advisable. The
securities so  purchased or  sold  are subject  to  market fluctuations  and  no
interest  accrues to  the purchaser  during this period.  At the  time the Trust
makes the commitment to purchase securities on a when-issued or delayed delivery
basis, it will  record the transaction  and thereafter reflect  the value,  each
day,  of  such security  in  determining its  net asset  value.  At the  time of
delivery of the  securities, the value  may be  more or less  than the  purchase
price.  The Trust  will also establish  a segregated account  with its custodian
bank in  which it  will maintain  cash or  cash equivalents  or other  portfolio
securities  equal  in  value  to commitments  for  such  when-issued  or delayed
delivery securities.

    The foregoing strategies, and  those discussed in  the Prospectus under  the
heading  "Investment  Objectives and  Policies," may  subject  the Trust  to the
effects of interest rate  fluctuations to a greater  extent than would occur  if
such  strategies were not used. While the strategies listed above may be used by
the  Trust  if,  in  the  opinion  of  the  Investment  Manager,  they  will  be
advantageous  to the Trust,  the Trust will  be free to  reduce or eliminate its
activity in  any of  those  areas without  changing its  fundamental  investment
policies.  Certain provisions of the Internal Revenue Code, related regulations,
and rulings of the Internal Revenue Service may also have the effect of reducing
the extent to which the  previously cited techniques may  be used by the  Trust,
either  individually or in combination. Furthermore,  there is no assurance that
any of  these strategies  or  any other  strategies  and methods  of  investment
available to the Trust will result in the achievement of its objectives.

    The  Trust will attempt to balance  its objectives of security of principal,
high current  income  and  liquidity  by  investing  in  securities  of  varying
maturities  and risks. The Trust will not, however, invest in securities with an
effective maturity of more than one year. The amounts invested in obligations of
various maturities of one year or less will depend on management's evaluation of
the risks involved. Longer-term U.S.  Government issues, while generally  paying
higher  interest rates, are  subject to greater  fluctuations in value resulting
from general  changes in  interest rates  than shorter-term  issues. Thus,  when
rates  on  new  securities increase,  the  value of  outstanding  securities may
decline, and vice versa. Such changes may  also occur, to a lesser degree,  with
short-term  issues. These  changes, if realized,  may cause  fluctuations in the
amount of daily dividends and, in extreme cases, could cause the net asset value
per share to decline. In the  event of unusually large redemption demands,  such
securities  may have to be sold at a  loss prior to maturity, or the Trust might
have to  borrow  money  and  incur interest  expense.  Either  occurrence  would
adversely impact upon the amount of daily dividend and could result in a decline
in daily net asset value per share or the redemption by the Trust of shares held
in  a shareholder's account. The  Trust will attempt to  minimize these risks by
investing in relatively  longer-term securities  when it  appears to  management
that  yields on such securities are  not likely to increase substantially during
the period of expected  holding, and then only  in securities which are  readily
marketable. However, there can be no assurance that the Trust will be successful
in achieving this objective.

INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------

    The  Trust  has  adopted  certain  investment  restrictions  as  fundamental
policies which  cannot be  changed without  the  approval of  the holders  of  a
"majority"  of the outstanding shares of the  Trust as defined in the Investment
Company Act of 1940, as amended (the  "Act"). Majority is defined in the Act  as
the lesser of (a) sixty-seven percent or more of the shares present at a meeting
of  shareholders, if the holders  of more than fifty  percent of the outstanding
shares of the Trust are present or represented by proxy, or (b) more than  fifty
percent of the outstanding shares of the Trust.

                                       4
Active Assets Government Securities Trust
<PAGE>
    These restrictions provide that the Trust may not:

        1.   Purchase  common stocks,  preferred stocks,  warrants, other equity
    securities, corporate  bond  debentures,  state bonds,  municipal  bonds  or
    industrial revenue bonds;

        2.    Borrow  money,  except  from  banks,  for  temporary  or emergency
    purposes, including the meeting of redemption requests which might otherwise
    require the untimely disposition of securities. Borrowing in the  aggregate,
    including  reverse repurchase agreements, may  not exceed 20%, and borrowing
    for purposes other than meeting redemptions  may not exceed 5% of the  value
    of   the  Trust's  total  assets   (including  the  amount  borrowed),  less
    liabilities (not including the amount borrowed) at the time the borrowing is
    made;

        3.   Pledge, hypothecate,  mortgage or  otherwise encumber  its  assets,
    except  in an amount up  to 10% of the  value of its net  assets but only to
    secure borrowings for temporary or emergency purposes;

        4.  Sell securities short or purchase securities on margin;

        5.  Write or purchase put or call options;

        6.  Underwrite the  securities of other  issuers or purchase  securities
    with contractual or other restrictions on resale;

        7.    Purchase  or  sell  real  estate,  real  estate  investment  trust
    securities, commodities or commodity contracts or oil and gas interests;

        8.  Make loans to others  except through the purchase of qualified  debt
    obligations,  loans  of  portfolio  securities  and  entry  into  repurchase
    agreements referred to under "Investment  Practices and Policies" above  and
    "Investment Objectives and Policies" in the Prospectus;

        9.   Issue senior securities as defined in the Act except insofar as the
    Trust may be  deemed to  have issued  a senior  security by  reason of:  (a)
    entering  into any repurchase or reverse repurchase agreement; (b) borrowing
    money in  accordance  with  restrictions described  above;  or  (c)  lending
    portfolio securities;

        10.  Invest in securities of other  investment companies, except as they
    may be acquired as part of a merger, consolidation or acquisition of assets;
    and

        11. Lend its portfolio securities in excess of 10% of its total  assets,
    taken  at value. Any loans of portfolio securities will be made according to
    guidelines established by the Trustees, including maintenance of  collateral
    of  the  borrower equal  at all  times to  the current  market value  of the
    securities loaned.

    If a percentage restriction is  adhered to at the  time of an investment,  a
later  increase or decrease in  percentage resulting from a  change in values of
portfolio securities or  amount of  total or net  assets will  not constitute  a
violation of such restriction.

HOW NET ASSET VALUE IS DETERMINED
- --------------------------------------------------------------------------------

    As  discussed in the Appendix to the  Prospectus, the net asset value of the
Trust is determined as of 12  noon New York time on  each day that the New  York
Stock  Exchange  is open.  The New  York Stock  Exchange currently  observes the
following holidays: New Year's Day; President's Day; Good Friday; Memorial  Day;
Independence Day; Labor Day; Thanksgiving Day; and Christmas Day.

    The  Trust  utilizes  the amortized  cost  method in  valuing  its portfolio
securities for purposes of determining the net asset value of the shares of  the
Trust.  The Trust  utilizes the amortized  cost method in  valuing its portfolio
securities even  though the  portfolio securities  may increase  or decrease  in
market  value,  generally, in  connection with  changes  in interest  rates. The
amortized cost  method of  valuation involves  valuing a  security at  its  cost
adjusted   by  a   constant  amortization  to   maturity  of   any  discount  or

                                       5
Active Assets Government Securities Trust
<PAGE>
premium, regardless of the  impact of fluctuating interest  rates on the  market
value  of the instrument. While this  method provides certainty in valuation, it
may result in periods  during which value, as  determined by amortized cost,  is
higher  or  lower  than  the  price  the Trust  would  receive  if  it  sold the
instrument. During such periods the yield  to investors in the Trust may  differ
somewhat  from that  obtained in  a similar  company which  uses mark  to market
values for all its  portfolio securities. For example,  if the use of  amortized
cost resulted in a lower (higher) aggregate portfolio value on a particular day,
a  prospective investor in the  Trust would be able  to obtain a somewhat higher
(lower) yield than would  result from investment in  such a similar company  and
existing  investors would receive less (more)  investment income. The purpose of
this method of calculation  is to facilitate the  maintenance of a constant  net
asset value per share of $1.00.

    The  Trust's  use  of  the  amortized cost  method  to  value  its portfolio
securities and the  maintenance of the  per share  net asset value  of $1.00  is
permitted  pursuant to Rule 2a-7 of the  Act (the "Rule"), and is conditioned on
its  compliance  with  various  conditions  including:  (a)  the  Trustees   are
obligated,  as a particular responsibility within  the overall duty of care owed
to the Trust's shareholders, to establish procedures reasonably designed, taking
into account current market conditions and the Trust's investment objectives, to
stabilize the  net  asset  value  per  share as  computed  for  the  purpose  of
distribution  and redemption at $1.00 per  share; (b) (i) the procedures include
calculation, at such intervals as the Trustees determine are appropriate and  as
are  reasonable in light of current market  conditions, of the deviation, if any
between net  asset value  per  share using  amortized  cost to  value  portfolio
securities  and  net  asset  value  per share  based  upon  available  of market
quotations with respect to  such portfolio securities;  (ii) periodic review  by
the Trustees of the amount of deviation as well as methods used to calculate it;
and  (iii)  maintenance  of written  records  of the  procedures,  the Trustees'
considerations  made  pursuant  to  them   and  any  actions  taken  upon   such
considerations;  (c) the Trustees should consider what steps should be taken, if
any, in the event of a difference of more than 1/2 of 1% between the two methods
of valuation;  and  (d)  the Trustees  should  take  such action  as  they  deem
appropriate  (such as shortening the average portfolio maturity, realizing gains
or losses or, as provided  by the Declaration of  Trust, reducing the number  of
the  outstanding  shares of  the Trust)  to  eliminate or  reduce to  the extent
reasonably practicable material dilution or other unfair results to investors or
existing shareholders. Any reduction of  outstanding shares will be effected  by
having  each shareholder proportionately  contribute to the  Trust's capital the
necessary shares that represent  the amount of  excess upon such  determination.
Each  shareholder will be  deemed to have  agreed to such  contribution in these
circumstances by  investment in  the Trust.  See "Dividends,  Distributions  and
Taxes" for a discussion of the tax effect of such a reduction.

    Generally,  for  purposes  of the  procedures  adopted under  the  Rule, the
maturity of  a  portfolio  instrument  is deemed  to  be  the  period  remaining
(calculated from the trade date or such other date on which the Trust's interest
in  the instrument is subject to market action) until the date noted on the face
of the instrument as the date on which the principal amount must be paid, or  in
the  case  of  an  instrument  called for  redemption,  the  date  on  which the
redemption payment must be made.

    A variable rate obligation that is subject to a demand feature is deemed  to
have  a maturity  equal to  the longer  of the  period remaining  until the next
readjustment of the interest  rate or the period  remaining until the  principal
amount  can  be recovered  through demand.  A floating  rate instrument  that is
subject to a demand  feature is deemed  to have a maturity  equal to the  period
remaining until the principal amount can be recovered through demand.

    An  Eligible Security is defined  in the Rule to  mean a security which: (a)
has a remaining maturity of thirteen months or less; (b) (i) is rated in the two
highest short-term  rating categories  by any  two NRSRO's  that have  issued  a
short-term  rating with respect to the security  or class of debt obligations of
the issuer,  or (ii)  if only  one NRSRO  has issued  a short-term  rating  with
respect to the security, then by that NRSRO; (c) was a long-term security at the
time of issuance whose issuer has outstanding a short-term debt obligation which
is  comparable in priority and security and  has a rating as specified in clause
(b) above; or (d) if no rating is  assigned by any NRSRO as provided in  clauses
(b)  and (c)  above, the unrated  security is determined  by the Board  to be of
comparable quality to any such rated security.

                                       6
Active Assets Government Securities Trust
<PAGE>
    As permitted by the Rule, the Board has delegated to the Trust's  Investment
Manager,  subject to the Board's oversight pursuant to guidelines and procedures
adopted by  the  Board, the  authority  to determine  which  securities  present
minimal  credit risks and which unrated  securities are comparable in quality to
rated securities.

    Also, as  required by  the Rule,  the Trust  will limit  its investments  in
securities,  other than Government securities, so that, at the time of purchase:
(a) except as further limited in (b) below with regard to certain securities, no
more than 5% of its total assets will  be invested in the securities of any  one
issuer;  and (b) with respect to Eligible Securities that have received a rating
in less than the  highest category by  any one of the  NRSROs whose ratings  are
used  to qualify the  security as an  Eligible Security, or  determined to be of
comparable quality: (i) no more  than 5% in the  aggregate of the Trust's  total
assets  in all such securities, and (ii) no more than the greater of 1% of total
assets, or $1 million, in the securities of any one issuer.

    If the Board determines that  it is no longer in  the best interests of  the
Trust  and its shareholders to maintain a stable price of $1 per share or if the
Board believes that maintaining such price no longer reflects a market-based net
asset value per share, the Board has the right to change from an amortized  cost
basis  of  valuation to  valuation based  on market  quotations. The  Trust will
notify shareholders of any such change.

    The  Rule  further  requires  that  the  Trust  limit  its  investments   to
instruments  which the Trustees determine present minimal credit risks. The Rule
also requires the Trust to maintain a dollar-weighted average portfolio maturity
(not more than 90 days) appropriate to its objective of maintaining a stable net
asset value of $1.00 per share and precludes the purchase of any instrument with
a remaining  maturity  of  more than  one  year.  Should the  disposition  of  a
portfolio  security result  in a  dollar-weighted average  portfolio maturity of
more than 90 days, the Trust is required to invest its available cash in such  a
manner  as to  reduce such  maturity to 90  days or  less as  soon as reasonably
practicable.

DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------

    As discussed in the Appendix to the Prospectus, the Trust intends to declare
dividends payable on each day the New  York Stock Exchange is open for  business
of  all of its daily net investment  income and net short-term capital gains, if
any, to shareholders  of record as  of 12 Noon  New York time  of the  preceding
business  day. Net income, for dividend  purposes, includes accrued interest and
amortization of original issue and market discount, plus or minus any short-term
gains or losses realized on sales of portfolio securities, less the amortization
of market premium and the  estimated expenses of the  Trust. Net income will  be
calculated  immediately prior to the determination  of net asset value per share
of the Trust.

    Gains or losses on the  sales of securities by  the Trust will be  long-term
capital  gains or losses if the securities have  been held by the Trust for more
than twelve months. Gains or  losses on the sale  of securities held for  twelve
months or less will be short-term capital gains or losses.

    The  Trustees may  revise the  dividend policy,  or postpone  the payment of
dividends, if the Trust should have or anticipate any large unexpected  expense,
loss  or fluctuation in net assets which,  in the opinion of the Trustees, might
have a significant  adverse effect  on shareholders.  On occasion,  in order  to
maintain  a constant $1.00  per share net  asset value, the  Trustees may direct
that the number of outstanding shares be reduced in each shareholder's  account.
Such  reduction may result in  taxable income to a  shareholder in excess of the
net  increase  (i.e.,  dividends,  less   such  reductions),  if  any,  in   the
shareholder's  account for a period. Furthermore, such reduction may be realized
as a capital loss when the shares are liquidated.

    The Trust  has qualified  and intends  to remain  qualified as  a  regulated
investment  company under Subchapter M of the  Internal Revenue Code of 1986, as
amended (the "Code"). If so qualified, the Trust will not be subject to  federal
income  and excise  taxes provided  that it distributes  all of  its taxable net
investment income and all of its net realized gains.

                                       7
Active Assets Government Securities Trust
<PAGE>
    Shareholders will be subject  to federal income tax  on dividends paid  from
interest income derived from taxable securities and on distributions of realized
net  short-term capital gains. Such interest and realized net short-term capital
gains dividends and  distributions are  taxable to the  shareholder as  ordinary
dividend   income   regardless  of   whether   the  shareholder   receives  such
distributions in  additional shares  or in  cash. Since  the Trust's  income  is
expected  to be  derived entirely from  interest rather than  dividends, none of
such dividends/distributions will be eligible for the federal dividends received
deduction available to corporations.

    The Code requires each regulated  investment company to pay a  nondeductible
4%  excise  tax to  the  extent the  company  does not  distribute,  during each
calendar year, 98% of its ordinary income, determined on a calendar year  basis,
and  98% of its capital gains, determined in  general on an October 31 year end,
plus certain undistributed  amounts from previous  years. The Trust  anticipates
that  it will  make sufficient timely  distributions to avoid  imposition of the
excise tax.

    Under  present  Massachusetts  law,  the   Trust  is  not  subject  to   any
Massachusetts  income tax during any fiscal year in which the Trust qualifies as
a regulated  investment company.  The Trust  might be  subject to  Massachusetts
income taxes for any taxable year in which it does not so qualify as a regulated
investment company.

    The  Trust may be  subject to tax or  taxes in certain  states where it does
business. Furthermore,  in those  states which  have income  tax laws,  the  tax
treatment  of the Trust and of shareholders with respect to distributions by the
Trust may differ from Federal tax treatment.

    Shareholders are urged to consult their own tax advisers regarding  specific
questions as to Federal, state or local taxes.

INFORMATION ON COMPUTATION OF YIELD

    The  Trust's annualized current yield, as may be quoted from time to time in
advertisements and other communications to shareholders and potential investors,
is computed  by determining,  for a  stated seven-day  period, the  net  change,
exclusive  of  capital  changes and  including  the value  of  additional shares
purchased with dividends  and any  dividends declared  therefrom (which  reflect
deductions  of all expenses of the Trust  such as management fees), in the value
of a hypothetical  pre-existing account  having a balance  of one  share at  the
beginning of the period, and dividing the difference by the value of the account
at  the beginning of the base period to  obtain the base period return, and then
multiplying the base period return by (365/7).

    The Trust's annualized effective yield, as  may be quoted from time to  time
in  advertisements  and  other  communications  to  shareholders  and  potential
investors, is computed by determining (for  the same stated seven-day period  as
for  the  current  yield), the  net  change,  exclusive of  capital  changes and
including the  value  of additional  shares  purchased with  dividends  and  any
dividends  declared therefrom (which  reflect deductions of  all expenses of the
Trust such as  management fees),  in the  value of  a hypothetical  pre-existing
account  having  a balance  of one  share at  the beginning  of the  period, and
dividing the difference by the value of the account at the beginning of the base
period to obtain the  base period return, and  then compounding the base  period
return  by adding 1, raising the  sum to a power equal  to 365 divided by 7, and
subtracting 1 from the result.

    The yields quoted in any advertisement or other communication should not  be
considered  a representation of the yields of  the Trust in the future since the
yield is not fixed. Actual yields will depend not only on the type, quality  and
maturities of the investments held by the Trust and changes in interest rates on
such investments, but also on changes in the Trust's expenses during the period.

    Yield  information may be  useful in reviewing the  performance of the Trust
and for providing  a basis  for comparison with  other investment  alternatives.
However,  unlike bank deposits or other  investments which typically pay a fixed
yield for a stated period of time, the Trust's yield fluctuates.

    The Trust's current yield for the seven days ended June 30, 1994 was  3.44%.
The effective annual yield on 3.44% is 3.50%, assuming daily compounding.

                                       8
Active Assets Government Securities Trust
<PAGE>
APPENDIX
- --------------------------------------------------------------------------------

    This  Appendix constitutes part of  the Statements of Additional Information
of the Active Assets Money Trust (the "Money Trust"), the Active Assets Tax-Free
Trust (the "Tax-Free Trust"), the  Active Assets California Tax-Free Trust  (the
"California  Tax-Free Trust") and the  Active Assets Government Securities Trust
(the "Government Securities Trust").  The Money Trust,  the Tax-Free Trust,  the
California Tax-Free Trust and the Government Securities Trust are referred to in
this  Appendix  collectively as  the "Trusts".  Unless otherwise  indicated, the
information set forth herein is applicable to each Trust.

INVESTMENT MANAGER
- --------------------------------------------------------------------------------

    Dean Witter InterCapital Inc. (the "Investment Manager" or  "InterCapital"),
a  Delaware corporation, whose address is Two  World Trade Center, New York, New
York 10048, is the  Trusts' Investment Manager.  InterCapital is a  wholly-owned
subsidiary  of Dean Witter, Discover &  Co. ("DWDC") a Delaware corporation. The
daily management of the Trusts and  research relating to the Trusts'  portfolios
is  conducted by  or under the  direction of officers  of the Trusts  and of the
Investment Manager, subject to review of investments by the Trusts' Trustees. In
addition, Trustees  of  the Trusts  provide  guidance on  economic  factors  and
interest rate trends. Information as to these Trustees and Officers is contained
under the caption "Trustees and Officers."

    InterCapital  also serves as  investment manager (or  investment advisor and
administrator) of the following investment  companies: Dean Witter Liquid  Asset
Fund   Inc.,  InterCapital  Income  Securities  Inc.,  Dean  Witter  High  Yield
Securities Inc., Dean Witter Tax-Free Daily Income Trust, Dean Witter Developing
Growth Securities Trust,  Dean Witter Tax-Exempt  Securities Trust, Dean  Witter
American  Value Fund, Dean  Witter Dividend Growth  Securities Inc., Dean Witter
Natural Resource Development Securities Inc., Dean Witter U.S. Government  Money
Market  Trust, Dean  Witter Variable Investment  Series, Dean  Witter World Wide
Investment Trust, Dean  Witter Select Municipal  Reinvestment Fund, Dean  Witter
U.S.  Government Securities Trust, Dean  Witter California Tax-Free Income Fund,
Dean Witter New York  Tax-Free Income Fund,  Dean Witter Convertible  Securities
Trust,  Dean  Witter Federal  Securities Trust,  Dean Witter  Value-Added Market
Series, High Income Advantage Trust, High Income Advantage Trust II, Dean Witter
Government Income Trust, Dean Witter Utilities Fund, Dean Witter Managed  Assets
Trust,   Dean  Witter  California  Tax-Free  Daily  Income  Trust,  Dean  Witter
Strategist Fund,  Dean Witter  World Wide  Income Trust,  High Income  Advantage
Trust  III, Dean Witter  Capital Growth Securities,  Dean Witter European Growth
Fund, Inc.,  Dean Witter  New York  Municipal Money  Market Trust,  Dean  Witter
Precious  Metals and Minerals  Trust, Dean Witter  Global Short-Term Income Fund
Inc., Dean Witter Pacific  Growth Fund Inc.,  Dean Witter Multi-State  Municipal
Series  Trust, InterCapital  Insured Municipal Bond  Trust, InterCapital Insured
Municipal Trust, InterCapital  Quality Municipal Investment  Trust, Dean  Witter
Diversified   Income  Trust,   InterCapital  Quality   Municipal  Income  Trust,
InterCapital California  Insured  Municipal  Income Trust,  Dean  Witter  Global
Dividend  Growth  Securities, Dean  Witter  Limited Term  Municipal  Trust, Dean
Witter Health Sciences Trust, Dean Witter Retirement Series, Dean Witter Premier
Income Trust, Dean Witter Short-Term  U.S. Treasury Trust, InterCapital  Quality
Municipal  Securities,  InterCapital  California  Quality  Municipal Securities,
InterCapital  New  York  Quality  Municipal  Securities,  InterCapital   Insured
Municipal  Income Trust, InterCapital Insured Municipal Securities, InterCapital
Insured California Municipal Securities, Dean Witter Short-Term Bond Fund,  Dean
Witter  Global Utilities Fund, Dean Witter National Municipal Trust, Dean Witter
High Income Securities,  Dean Witter  International SmallCap  Fund, Dean  Witter
Mid-Cap  Growth  Fund,  Dean Witter  Intermediate  Income  Securities, Municipal
Income Trust, Municipal Income Trust  II, Municipal Income Trust III,  Municipal
Income  Opportunities  Trust,  Municipal Income  Opportunities  Trust  II, Prime
Income Trust, Municipal  Income Opportunities  Trust III  and Municipal  Premium
Income  Trust. The foregoing investment companies, together with the Trusts, are
collectively referred to  as the  Dean Witter  Funds. In  addition, Dean  Witter
Services  Company  Inc.  ("DWSC"), a  wholly-owned  subsidiary  of InterCapital,
serves as manager for  the following investment companies,  for which TCW  Funds
Management,  Inc. is  the investment adviser:  TCW/DW Core  Equity Trust, TCW/DW
North American  Government  Income Trust,  TCW/DW  Latin American  Growth  Fund,
TCW/DW Term

                                      A-1
<PAGE>
Trust  2002, TCW/DW Income and Growth Fund, TCW/DW Small Cap Growth Fund, TCW/DW
Balanced Fund, TCW/DW North American  Intermediate Fund, TCW/DW Term Trust  2000
and  TCW/DW Term Trust  2003 (the "TCW/DW Funds").  InterCapital also serves as:
(i) sub-adviser to Templeton Global Opportunities Trust, an open-end  investment
company;  (ii)  administrator  of The  BlackRock  Strategic Term  Trust  Inc., a
closed-end  investment  company;  and  (iii)  sub-administrator  of   MassMutual
Participation   Investors  and   Templeton  Global   Governments  Income  Trust,
closed-end investment companies.

    The Investment Manager also serves as an investment adviser for Dean  Witter
World  Wide Investment Fund,  an investment company organized  under the laws of
Luxembourg. The shares of this company may  not be offered in the United  States
or purchased by American citizens outside the United States.

    The  Trusts have entered into separate Investment Management Agreements (the
"Agreements") with  the  Investment Manager.  Pursuant  to the  Agreements,  the
Trusts  have retained the Investment Manager to manage the investment of each of
the Trusts' assets, including the placing of orders for the purchase and sale of
portfolio  securities.  The  Investment  Manager  obtains  and  evaluates   such
information and advice relating to the economy, securities markets, and specific
securities as it considers necessary or useful to continuously manage the assets
of  the  Trusts in  a  manner consistent  with  their investment  objectives and
policies.

    Under the  terms of  the Agreements,  in addition  to managing  the  Trusts'
investments,  the Investment Manager maintains certain  of the Trusts' books and
records and  furnishes,  at its  own  expense, such  office  space,  facilities,
equipment,  clerical help and bookkeeping services  as the Trusts may reasonably
require in the conduct of business. In addition, the Investment Manager pays the
salaries of all personnel, including officers of the Trusts who are employees of
the Investment Manager. The Investment Manager also bears the cost of  telephone
service,  heat,  light,  power  and  other  utilities  provided  to  the Trusts.
Effective  December  31,  1993,  pursuant   to  a  Services  Agreement   between
InterCapital  and DWSC, DWSC began to provide the administrative services to the
Trusts which were previously performed  directly by InterCapital. The  foregoing
internal  reorganization did not result in any  change in the nature or scope of
the administrative services being provided to the Fund or any of the fees  being
paid by the Fund for the overall services being performed under the terms of the
existing Management Agreement.

    Expenses  not expressly assumed  by the Investment Manager  under any of the
Agreements  or  by   Dean  Witter  Distributors   Inc.  ("Distributors  or   the
Distributor"), the Distributor of the Trusts' shares (see "Plan and Agreement of
Distribution"  below and  in the  Prospectus), will be  paid by  the Trusts. The
expenses borne  by the  Trusts include,  but  are not  limited to:  charges  and
expenses  of any  registrar, custodian,  stock transfer  and dividend disbursing
agent; brokerage commissions; taxes; engraving and printing share  certificates,
if  any; registration  costs of  the Trusts and  their shares  under federal and
state securities laws; the cost and expense of printing, including  typesetting,
and  distributing prospectuses and  statements of additional  information of the
Trusts and  supplements thereto  to the  Trusts' shareholders;  all expenses  of
shareholders'  and Trustees' meetings and of  preparing, printing and mailing of
proxy statements  and  reports to  shareholders;  fees and  travel  expenses  of
Trustees  or members of any advisory board or committee who are not employees of
the Investment Manager or any corporate affiliate of the Investment Manager; all
expenses incident to any dividend, withdrawal or redemption options; charges and
expenses of  any outside  service  used for  pricing  of the  Trusts'  portfolio
securities;  fees  and  expenses  of legal  counsel,  including  counsel  to the
Trustees who  are not  interested persons  of the  Trusts or  of the  Investment
Manager  and independent accountants; membership  dues of industry associations;
interest on  Trust  borrowings;  postage;  insurance  premiums  on  property  or
personnel  (including officers  and trustees) of  the Trusts which  inure to the
Trusts' benefit; extraordinary  expenses (including, but  not limited to,  legal
claims  and liabilities  and litigation  costs and  any indemnification relating
thereto); and all other costs of the Trusts' operation.

    As full compensation for the services and facilities furnished to the Trusts
and Trust expenses assumed  by the Investment Manager,  the Trusts each pay  the
Investment  Manager  monthly  compensation  calculated  daily  by  applying  the
following annual rates to the net assets of the respective Trust, determined  as
of  the close of each business day: 0.50% of the portion of the daily net assets
not

                                      A-2
<PAGE>
exceeding $500 million; 0.425% of the portion of the daily net assets  exceeding
$500  million but not exceeding $750 million; 0.375% of the portion of the daily
net assets exceeding  $750 million but  not exceeding $1  billion; 0.35% of  the
portion  of the  daily net  assets exceeding $1  billion but  not exceeding $1.5
billion; 0.325% of the  portion of the daily  net assets exceeding $1.5  billion
but  not  exceeding $2  billion; 0.3%  of the  portion of  the daily  net assets
exceeding $2 billion but  not exceeding $2.5 billion;  0.275% of the portion  of
the  daily net assets exceeding  $2.5 billion but not  exceeding $3 billion; and
0.25% of the portion  of the daily  net assets exceeding  $3 billion. The  Money
Trust  accrued  to  the  Investment  Manager  compensation  in  the  amounts  of
$12,693,259, $12,588,084 and $13,025,495 during the fiscal years ended June  30,
1992,  June 30, 1993 and June 30, 1994, respectively. The Tax-Free Trust accrued
to the Investment Manager compensation in the amounts of $5,854,412,  $5,846,579
and  $6,138,744 for the fiscal years ended June 30, 1992, June 30, 1993 and June
30, 1994, respectively. The California Tax-Free Trust accrued to the  Investment
Manager compensation in the amounts of $256,945, $908,488 and $1,328,271 for the
fiscal  period ended June 30, 1992 and the  fiscal years ended June 30, 1993 and
June 30,  1994, respectively.  The Government  Securities Trust  accrued to  the
Investment  Manager compensation  in the  amounts of  $2,810,187, $2,699,656 and
$2,594,882 for the fiscal years ended June 30, 1992, June 30, 1993 and June  30,
1994, respectively.

    Under  the Agreements, total operating expenses  of each Trust, exclusive of
taxes, interest,  brokerage  fees  and extraordinary  expenses  (to  the  extent
permitted  by applicable state securities laws  and regulations), are subject to
applicable limitations under rules and regulations of states where each Trust is
authorized to sell its shares. Therefore, such expenses are effectively  subject
to the most restrictive of such limitations as the same may be amended from time
to time. Presently, the most restrictive limitation is as follows: 2 1/2% of the
first  $30,000,000 of average  daily net assets,  2% of the  next $70,000,000 of
average daily net assets and 1 1/2%  of any excess over $100,000,000 of  average
daily  net assets. Under  the Agreements, if  in any fiscal  year such operating
expenses exceed  this  limitation, the  Investment  Manager will  reimburse  the
Trust(s)  for the amount of such excess. Such amount, if any, will be calculated
daily and credited on a  monthly basis. During the  fiscal years ended June  30,
1992,  June 30,  1993 and June  30, 1994  the expenses of  Money Trust, Tax-Free
Trust, California Tax-Free Trust and Government Securities Trust did not  exceed
this limitation or the then existing most restrictive limitation.

    The  Agreements  provide that  in the  absence  of willful  misfeasance, bad
faith, gross negligence or reckless disregard of its obligations thereunder, the
Investment Manager is not liable to the Trusts or any of their investors for any
act or omission by  the Investment Manager  or for any  losses sustained by  the
Trusts  or their  investors. The  Agreements in  no way  restrict the Investment
Manager from acting as investment manager or adviser to others.

    The Agreements between Money Trust, Tax-Free Trust and Government Securities
Trust and the  Investment Manager  were initially  approved by  the Trustees  on
January  18, 1983 and were approved by the shareholders of the respective Trusts
on March 17, 1983 and March 18, 1983. Pursuant to their terms, these  Agreements
remained  in effect until October 31, 1984  and were continued from year to year
thereafter, as the continuance of each Agreement was approved at least  annually
by the vote of a majority, as defined in the Investment Company Act of 1940 (the
"Act"),  of the outstanding voting securities of the Trust or by the Trustees of
the Trust, provided that in either event such continuance was approved  annually
by  the vote of a majority of the Trustees who were not parties to the Agreement
or "interested  persons"  (as  defined in  the  Act)  of any  such  party  ("the
Independent  Trustees"), which vote was  cast in person at  a meeting called for
the purpose of voting on such approval.

    At their meeting held on April  29, 1992, which was specifically called  for
the  purpose of voting on the approval of the continuance of the Agreements, the
Trustees, including  a  majority of  the  non-interested Trustees  as  described
above,  voted to  continue the  current Agreements  until April  30, 1993. These
Agreements may  be terminated  at any  time, without  penalty, on  thirty  days'
notice,  by the Trustees of the Trust, by  the holders of a majority, as defined
in the  Act,  of  the  Trust's  shares, or  by  the  Investment  Manager.  These
Agreements  will automatically  terminate in the  event of  their assignment (as
defined in the Act).

                                      A-3
<PAGE>
    At their meetings held on October  30, 1992, the Trustees, including all  of
the  Independent  Trustees,  of  Money  Trust,  Tax-Free  Trust  and  Government
Securities Trust approved the assumption of the rights and duties of Dean Witter
(InterCapital's  predecessor  as  the  Trust's  Investment  Manager)  under  the
Agreements  by  InterCapital, upon  the internal  reorganization of  Dean Witter
Reynolds Inc.  ("Dean  Witter") (which  reorganization  took place  in  January,
1993).  At the  same meetings, the  Trustees approved  new investment management
agreements to take effect upon the spin-off by Sears, Roebuck and Co.  ("Sears")
of its remaining shares of DWDC. This spin-off was consummated on June 30, 1993,
whereupon  the  new  agreements  took  effect.  The  new  investment  management
agreements  are  substantially  identical  in  all  material  respects  to   the
Agreements.  The approvals  of the  Trustees were  subsequently ratified  by the
shareholders of  Money  Trust, Tax-Free  Trust  Government Securities  Trust  at
Special  Meetings held on January 12, 1993. Subsequently, at their meetings held
on April 8, 1994, the Trustees approved the continuance of the Agreements  until
April 30, 1995.

    The  Agreement between California Tax-Free  Trust and the Investment Manager
was approved by the  Trustees on July 18,  1991 and by Dean  Witter as the  sole
shareholder  on October  4, 1991.  Under its  terms, this  Agreement remained in
effect until April  30, 1993,  and will  continue in  effect from  year to  year
thereafter, provided continuance of each Agreement is approved at least annually
by  the vote  of a majority,  as defined in  the Act, of  the outstanding voting
securities of the Trust or by the Trustees of the Trust, provided that in either
event such continuance is  approved annually by  the vote of  a majority of  the
Independent  Trustees of the California Tax-Free  Trust, which vote must be cast
in person at a meeting called for  the purpose of voting on such approval.  This
Agreement  may,  be terminated  at any  time, without  penalty, on  thirty day's
notice, by the Trustees of  the California Tax-Free Trust,  by the holders of  a
majority,  as defined in the Act, of  the California Tax-Free Trust's shares, or
by the Investment  Manager. The  Agreement will automatically  terminate in  the
event of its assignment (as defined in the Act).

    At its meeting held on October 30, 1992, the Trustees of California Tax-Free
Trust,  including all  of the Independent  Trustees, approved  the assumption by
InterCapital of  Dean Witter's  rights  and duties  under the  Agreement  (which
assumption  took  place upon  the reorganization  referred to  above, and  a new
investment management  agreement  identical  in all  material  respects  to  the
Agreement)  to take effect  upon the spin-off described  above. At their Special
Meeting held on January 13, 1993, the shareholders of California Tax-Free  Trust
approved  the Agreement's continuation as  well as the aforementioned assumption
of rights and  duties and the  new investment management  agreement (which  went
into  effect on June 30, 1993). Subsequently, at their meetings held on April 8,
1994, the Trustees  approved the continuance  of the Agreement  until April  30,
1995.

    The   Investment  Manager  has  paid  the  organizational  expenses  of  the
California Tax-Free Trust  incurred prior  to the  offering of  its shares.  The
California  Tax-Free  Trust  has  reimbursed  the  Investment  Manager  for such
expenses in an amount  of approximately $46,500.  The California Tax-Free  Trust
has  deferred and  is amortizing  the reimbursed  expenses on  the straight line
method over a period not to exceed  five years from the date of commencement  of
its operations.

PLAN OF DISTRIBUTION

    As  discussed in the Prospectus, each  Trust has entered into a Distribution
Agreement with Dean Witter Distributors  Inc. (the "Distributor") in  connection
with  the  continuous offering  of  the shares  of  the Trust.  The Distribution
Agreements obligate the Distributor to  pay certain expenses in connection  with
the  offering  of the  shares  of the  Trust,  including costs  involved  in the
distribution of  prospectuses and  periodic reports  to investors,  the cost  of
other supplementary sales literature and advertising costs.

    The  Distributor  has  entered  into selected  dealer  agreements  with Dean
Witter, which through its own sales organization sells shares of the Trusts. The
Distributor, a Delaware corporation, is  an indirect wholly-owned subsidiary  of
DWDC.  The Trustees who are not, and were not at the time they voted, interested
persons of  the Trusts,  as defined  in the  Act (the  "Independent  Trustees"),
approved,  at their  meeting held on  October 30,  1992, Distribution Agreements
appointing the Distributor as  exclusive distributor of  the Trusts' shares  and
providing  for the  Distributor to bear  distribution expenses not  borne by the
Trusts. At the same meeting,  the Trustees of the  Trusts, including all of  the
Independent Trustees,

                                      A-4
<PAGE>
approved  new Distribution Agreements between the Trusts and the Distributor, to
take effect upon  the spin-off  by Sears.  The new  Distribution Agreements  are
substantively  identical to the current  Distribution Agreements in all material
respects,  except  for  the  dates   of  effectiveness.  By  their  terms,   the
Distribution  Agreements have initial  terms ending April  30, 1994, and provide
that they will remain in effect from year to year thereafter if approved by  the
Trustees.  At their meetings held on April  8, 1994, the Trustees, including all
of  the  Independent  Trustees,  voted   to  approve  the  continuance  of   the
Distribution Agreements until April 30, 1995.

    As  discussed  in the  Appendix to  the Prospectuses,  the Trusts  have each
adopted a Plan  of Distribution (the  "Plan") pursuant to  Rule 12b-1 under  the
Act.  The adoptions of the Plans of  Money Trust, Tax-Free Trust, and Government
Securities Trust  were made  on  March 21,  1983.  These respective  Plans  were
initially  approved by the Trustees of the respective Trusts on January 18, 1983
and by the respective Trust's shareholders on March 17, 1983 and March 18, 1983.
The Plan of California Tax-Free Trust was  adopted by the Trustees of the  Trust
on  July 18, 1991 and by DWR, as sole shareholder, on October 4, 1991, whereupon
it went into  effect. On April  29, 1992, the  Trustees approved continuance  of
these  Plans until April 30, 1993. In  all instances, the vote of the respective
Trustees included a majority  of the Trustees  who are not and  were not at  the
time  of their  votes interested persons  of the Trust  and who have  and had no
direct or  indirect  financial  interest  in the  operation  of  the  Plan  (the
"Independent 12b-1 Trustees"), cast in person at meetings called for the purpose
of  voting  on such  Plans  and Agreements.  The  California Tax-Free  Trust has
undertaken, in  its  Registration  Statement,  to  seek  subsequent  shareholder
approval of the Plan at its first Annual or Special Meeting of Shareholders held
after  the effective date of the  Registration Statement of which this Statement
of Additional Information is a part.

    At their meetings  held on  October 30, 1992,  the Trustees  of the  Trusts,
including  all of the Independent 12b-1 Trustees, approved certain amendments to
the Plan which took  effect in January,  1993 and were  designed to reflect  the
fact  that  upon the  reorganization referred  to  above the  share distribution
activities theretofore performed for the Trusts  by Dean Witter were assumed  by
the  Distributor, and  Dean Witter's  sales activities  are now  being performed
pursuant to the terms of a selected dealer agreement between the Distributor and
Dean Witter. The amendments provide that  payments under the Plans will be  made
to the Distributor rather than to Dean Witter, as before the amendment, and that
the  Distributor in  turn is  authorized to  make payments  to Dean  Witter, its
affiliates or other selected broker-dealers (or direct that the Trusts pay  such
entities  directly). The Distributor  is also authorized to  retain part of such
payments as compensation for its own distribution-related expenses. This amended
Plan was approved  by the  shareholders of  California Tax-Free  Trust at  their
meeting held on January 13, 1993.

    Under  the respective Plans, the Distributor  has expanded the nature of its
promotional activities on  behalf of  the respective  Trusts and  used its  best
efforts to foster additional sales of Trust shares. The respective Plans provide
that  the  Distributor bears  the expense  of  all promotional  and distribution
related activities on behalf of the respective Trusts, except for expenses  that
the  respective  Trustees  determine  to  reimburse,  as  described  below.  The
following activities and services may be  provided by the Distributor under  the
respective  Plans: (1) compensation to  sales representatives of the Distributor
and  other  broker-dealers;   (2)  sales   incentives  and   bonuses  to   sales
representatives and to marketing personnel in connection with promoting sales of
shares;  (3) expenses incurred  in connection with promoting  sales of shares of
the Trust; (4) preparing  and distributing sales  literature; and (5)  providing
advertising  and promotional activities, including  direct mail solicitation and
television, radio, newspaper, magazine and other media advertisements.

    Dean Witter  account  executives are  paid  an annual  residual  commission,
currently a gross residual of up to 0.10% of the current value of the respective
accounts  for  which  they are  the  account  executives of  record.  The "gross
residual" is a charge which reflects residual commissions paid by Dean Witter to
its account executives and Dean Witter's expenses associated with the  servicing
of  shareholder's accounts,  including the  expenses of  operating Dean Witter's
branch offices in connection with the

                                      A-5
<PAGE>
servicing of shareholder's  accounts, which  expenses include  lease costs,  the
salaries  and  employee  benefits  of operations  and  sales  support personnel,
utility costs, communications costs and the costs of stationery and supplies and
other expenses relating to branch office serving of shareholder accounts.

    Each Trust is authorized to reimburse the Distributor for specific  expenses
the  Distributor incurs or plans  to incur in promoting  the distribution of the
respective Trust's shares.  Reimbursement is  made through  monthly payments  in
such  amounts determined  in advance  of each  fiscal quarter  by the respective
Trustees, including a majority of the  Independent Trustees. The amount of  each
monthly  payment may  in no  event exceed an  amount equal  to a  payment at the
annual rate of  .15 of 1%  of the Trust's  average daily net  assets during  the
month.  No interest or other  financing charges will be  incurred by Dean Witter
for which  reimbursement  payments  under  the Plan  will  be  made.  In  making
quarterly  determinations of the amounts that may be expended by each Trust, the
Distributor provides, and the respective Trustees review, a quarterly budget  of
projected  incremental distribution  expenses to be  incurred on  behalf of each
Trust, together with a report  explaining the purposes and anticipated  benefits
of  incurring such expenses. The  respective Trustees determine which particular
expenses, and the  portions thereof, that  may be  borne by each  Trust, and  in
making  such  determination  shall  consider  the  scope  of  the  Distributor's
commitment to promoting the distribution of the respective Trusts' shares.

    Money Trust,  Tax-Free  Trust,  California  Tax-Free  Trust  and  Government
Securities   Trust  accrued  $3,816,058,   $1,444,689,  $261,619  and  $515,023,
respectively, to the Distributor pursuant to the Plans for the fiscal year ended
June 30, 1994. Based upon the total amounts spent by the Distributor during  the
period,  it is estimated that the amounts  paid by the Trusts to the Distributor
for distribution were spent in approximately  the following ways: for the  Money
Trust:  (i) advertising  -- $-0-; (ii)  printing and mailing  of prospectuses to
other than current shareholders --  $-0-; (iii) compensation to underwriters  --
$-0-;  (iv) compensation to dealers -- $-0-; (v) compensation to sales personnel
- --  $-0-;  and  (vi)  other,  which   includes  to  Dean  Witter  for   expenses
substantially  all  of  which  relate  to  compensation  of  sales  personnel --
$3,816,058; for the Tax-Free Trust: (i)  advertising -- $-0-; (ii) printing  and
mailing  of  prospectuses  to other  than  current shareholders  --  $-0-; (iii)
compensation to underwriters -- $-0-; (iv) compensation to dealers -- $-0-;  (v)
compensation  to sales personnel -- $-0-; and (vi) other, which includes to Dean
Witter for expenses substantially all of  which relate to compensation of  sales
personnel  -- $1,444,689; for the California  Tax-Free Trust: (i) advertising --
$-0-;  (ii)  printing  and  mailing  of  prospectuses  to  other  than   current
shareholders   --  $-0-;  (iii)  compensation  to  underwriters  --  $-0-;  (iv)
compensation to dealers --  $-0-; (v) compensation to  sales personnel --  $-0-;
and  (vi) other, which includes to Dean Witter for expenses substantially all of
which relate to compensation of  sales personnel --$261,619; and for  Government
Securities  Trust:  (i)  advertising  --  $-0-;  (ii)  printing  and  mailing of
prospectuses to other than current  shareholders -- $-0-; (iii) compensation  to
underwriters  -- $-0-; (iv) compensation to dealers -- $-0-; (v) compensation to
sales personnel  -- $-0-;  and (vi)  other, which  includes to  Dean Witter  for
expenses substantially all of which relate to compensation of sales personnel --
$515,023.

    Under  each Plan,  the Distributor  will use  its best  efforts in rendering
services to the respective  Trusts, but in the  absence of willful  misfeasance,
bad  faith,  gross  negligence or  reckless  disregard of  its  obligations, the
Distributor will not be liable to any of such Trusts or any of its  shareholders
for  any error of judgment or  mistake of law or for  any act of omission or for
any losses sustained by any of such Trusts or their shareholders.

    The  respective  Plans  of  Money  Trust,  Tax-Free  Trust  and   Government
Securities  Trust remained in  effect until December  31, 1984, and  the Plan of
California Tax-Free Trust  remained in  effect until  April 30,  1992, and  such
Plans  will  remain  in  effect  from year  to  year  thereafter,  provided such
continuances are  approved annually  by  a vote  of  the Trustees,  including  a
majority of the Independent 12b-1 Trustees. Any amendment to increase materially
the  maximum amount authorized to  be spent under each  Plan must be approved by
the shareholders of each Trust, and all material amendments to each Plan must be
approved by  the  Trustees in  the  manner described  above.  Each Plan  may  be
terminated at any time, without payment of any penalty, by vote of a majority of
the  Independent 12b-1 Trustees or by a vote of the holders of a majority of the
outstanding voting  securities of  each Trust  (as defined  in the  Act) on  not

                                      A-6
<PAGE>
more  than 30 days written notice to any  other party to the Plan. The authority
to make reimbursement  payments to the  Distributor automatically terminates  in
the  event of  an assignment  (as defined  in the  Act); however,  the Trustees'
authority under each Plan to utilize its proceeds to finance the distribution of
Trust shares would continue. After such an assignment, the Trusts' authority  to
make  payments to their Distributor would resume, subject to certain conditions.
So long  as  the  Plans are  in  effect,  the selection  or  nomination  of  the
Independent  Trustees is  committed to the  discretion of  the Independent 12b-1
Trustees.

    Under each Plan, the Distributor  provides the respective Trust, for  review
by  its Trustees, and the Trustees review, promptly after the end of each fiscal
quarter, a  written  report  regarding  the  incremental  distribution  expenses
incurred  by the Distributor on behalf of each Trust during such fiscal quarter,
which report  includes (1)  an itemization  of  the types  of expenses  and  the
purposes  therefor; (2) the amounts  of such expenses; and  (3) a description of
the benefits derived  by each Trust.  In the Trustees'  quarterly review of  the
Plans   they  consider  their   continued  appropriateness  and   the  level  of
compensation provided therein.

    Pursuant to the Plans of all Trusts, the Distributor provided the  Trustees,
at  their Meetings held on April 8,  1994, with all the information the Trustees
deemed necessary to make an informed  determination on whether each Plan  should
be  continued. In making their determination to continue each of the Plans until
April 30, 1994, the Trustees, including  all of the Independent 12b-1  Trustees,
arrived  at the conclusion that the Plans had benefited each of the Trusts. This
conclusion was based upon  the Distributor's belief  that the expenditures  made
pursuant  to the Plans had tended to arrest the decline of the Trusts' assets by
meeting the competitive efforts  of other, similar  financial products, and  had
encouraged  the account  executives employed  by Dean  Witter to  increase their
efforts in selling shares of the Trusts. The Trustees, including the Independent
12b-1 Trustees, also concluded  that, in their judgment,  there is a  reasonable
likelihood  that the Plans will continue to benefit each of the Trusts and their
shareholders.

    No interested person of the Trusts nor any Trustee of the Trusts who is  not
an  interested person of  the Trusts, as defined  in the Act,  had any direct or
indirect financial interest in the operation  of the Plans except to the  extent
that  the Distributor or certain of its employees  may be deemed to have such an
interest as a result  of benefits derived from  the successful operation of  the
Plans  or as a result of receiving  a portion of the amounts expended thereunder
by the Trusts.

TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------

    The Trustees and Executive Officers of the Trusts, their principal  business
occupations  during the  last five  years and  their affiliations,  if any, with
InterCapital, the Dean Witter Funds and the TCW/DW Funds, are shown below.

<TABLE>
<CAPTION>
NAME, POSITION WITH TRUSTS AND
           ADDRESS                    PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------       ----------------------------------------------
<S>                                  <C>
Jack F. Bennett ..............       Retired;  Director  or  Trustee  of  the  Dean
Trustee                              Witter  Funds; formerly  Senior Vice President
141 Taconic Road                     and Director of Exxon Corporation
Greenwich, Connecticut               (1975--January 31, 1989)  and Under  Secretary
                                     of  the  U.S.  Treasury  for  Monetary Affairs
                                     (1974-1975); Director  of Philips  Electronics
                                     N.V., Tandem Computers, Inc. and Massachusetts
                                     Mutual  Insurance Co.; director  or trustee of
                                     various not-for-profit and business
                                     organizations.
</TABLE>

                                      A-7
<PAGE>
<TABLE>
<CAPTION>
NAME, POSITION WITH TRUSTS AND
           ADDRESS                    PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------       ----------------------------------------------
<S>                                  <C>
Michael Bozic ................       President and Chief Executive Officer of Hills
Trustee                              Department Stores (since May, 1991);  formerly
c/o Hills Stores Inc.                Chairman and Chief Executive Officer (January,
15 Dan Road                          1987-August,  1990)  and  President  and Chief
Canton, Massachusetts                Operating  Officer   (August,   1990-February,
                                     1991) of the Sears Merchandise Group of Sears,
                                     Roebuck  and Co.;  Director or  Trustee of the
                                     Dean Witter Funds; Director of Harley Davidson
                                     Credit Inc., the United Negro College Fund and
                                     Domain Inc. (home decor retailer).
Charles A. Fiumefreddo* ......       Chairman, Chief Executive Officer and Director
Chairman, Trustee,                   of  InterCapital,   Distributors   and   DWSC;
President and Chief                  Executive  Vice President and Director of Dean
Executive Officer                    Witter;   Chairman,   Trustee   or   Director,
Two World Trade Center               President  and Chief Executive  Officer of the
New York, New York                   Dean Witter Funds;  Chairman, Chief  Executive
                                     Officer  and  Trustee  of  the  TCW/DW  Funds;
                                     formerly Executive Vice President and Director
                                     of DWDC; Chairman and Director of Dean  Witter
                                     Trust Company ("DWTC"); (since October, 1989);
                                     Director  of  various  DWDC  subsidiaries  and
                                     affiliates; formerly Executive Vice  President
                                     and Director of DWDC (until February, 1993).
Edwin J. Garn ................       Director  or Trustee of the Dean Witter Funds;
Trustee                              formerly  United   States   Senator   (R-Utah)
2000 Eagle Gate Tower                (1974-1992)   and  Chairman,   Senate  Banking
Salt Lake City, Utah                 Committee (1980-1986); formerly Mayor of  Salt
                                     Lake    City,   Utah   (1971-1974);   formerly
                                     Astronaut,  Space  Shuttle  Discovery   (April
                                     12-19, 1985); Vice Chairman, Huntsman Chemical
                                     Corporation  (since January,  1993); Member of
                                     the board  of  various  civic  and  charitable
                                     organizations.
John R. Haire ................       Chairman  of the Audit  Committee and Chairman
Trustee                              of the Committee  of Independent Directors  or
439 East 51st Street                 Trustees  and Director or  Trustee of the Dean
New York, New York                   Witter Funds;  Trustee  of the  TCW/DW  Funds;
                                     formerly   President,   Council  for   Aid  to
                                     Education (1978-October 1989) and Chairman and
                                     Chief Executive Officer of Anchor Corporation,
                                     an Investment Adviser (1964-1978); Director of
                                     Washington  National  Corporation  (insurance)
                                     and Bowne & Co., Inc. (printing).
Dr. John E. Jeuck ............       Retired;  Director  or  Trustee  of  the  Dean
Trustee                              Witter Funds; formerly Robert Law Professor of
70 East Cedar Street                 Business Administration,  Graduate  School  of
Chicago, Illinois                    Business,  University of  Chicago (until July,
                                     1989); Business Consultant.
</TABLE>

                                      A-8
<PAGE>
<TABLE>
<CAPTION>
NAME, POSITION WITH TRUSTS AND
           ADDRESS                    PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------       ----------------------------------------------
<S>                                  <C>
Dr. Manuel H. Johnson ........       Senior Partner,  Johnson Smick  International,
Trustee                              Inc.,  a consulting  firm (since  June, 1985);
7521 Old Dominion Drive              Koch Professor of International Economics  and
Maclean, Virginia                    Director  of  the  Center  for  Global  Market
                                     Studies  at  George  Mason  University  (since
                                     September, 1990); Co-Chairman and a founder of
                                     the   Group   of  Seven   Council   (G7C),  an
                                     international   economic   commission   (since
                                     September,  1990); Director or  Trustee of the
                                     Dean  Witter  Funds;  Trustee  of  the  TCW/DW
                                     Funds;  Director of  Greenwich Capital Markets
                                     Inc. (broker-dealer);  formerly Vice  Chairman
                                     of  the  Board  of  Governors  at  the Federal
                                     Reserve System  (February,  1986-August  1990)
                                     and  Assistant Secretary of  the U.S. Treasury
                                     (1982-1986).
Paul Kolton ..................       Director or Trustee of the Dean Witter  Funds;
Trustee                              Chairman  of the Audit Committee and Committee
9 Hunting Ridge Road                 of Independent  Trustees  and Trustee  of  the
Stamford, Connecticut                TCW/DW   Funds;   formerly  Chairman   of  the
                                     Financial   Accounting   Standards    Advisory
                                     Council   and  Chairman  and  Chief  Executive
                                     Officer  of  the   American  Stock   Exchange;
                                     Director   of   UCC  Investors   Holding  Inc.
                                     (Uniroyal Chemical Company,  Inc.);   director
                                     and/or   trustee  of   various  not-for-profit
                                     organizations.
Michael E. Nugent ............       General  Partner,  Triumph  Capital,  L.P.,  a
Trustee                              private  investment partnership  (since April,
1465 Roosevelt Place                 1988); Director or Trustee of the Dean  Witter
Pelham Manor, New York               Funds;  Trustee of the  TCW/DW Funds; formerly
                                     Vice President, Bankers  Trust Company and  BT
                                     Capital   Corporation  (September,  1984-March
                                     1988);   Director    of    various    business
                                     organizations.
Philip J. Purcell* ...........       Chairman  of the Board  of Directors and Chief
Trustee                              Executive Officer  of  DWDC, Dean  Witter  and
Two World Trade Center               Novus   Credit  Services   Inc.;  Director  of
New York, New York                   InterCapital, DWSC and Distributors;  Director
                                     or  Trustee of the Dean Witter Funds; Director
                                     and/or officer of various DWDC subsidiaries.
John L. Schroeder ............       Executive Vice President and Chief  Investment
Trustee                              Officer  of the Home  Insurance Company (since
Northgate 3A                         August, 1991); Director or Trustee of the Dean
Alger Court                          Witter Funds; Director  of Citizens  Utilities
Bronxville, New York                 Company;    formerly   Chairman    and   Chief
                                     Investment Officer of Axe-Houghton  Management
                                     and  the Axe-Houghton Funds (April, 1983-June,
                                     1991)  and   President  of   USF&G   Financial
                                     Services, Inc. (June 1990-June, 1991).
</TABLE>

                                      A-9
<PAGE>

<TABLE>
<CAPTION>
NAME, POSITION WITH TRUSTS AND       PRINCIPAL  OCCUPATIONS DURING  LAST FIVE YEARS
ADDRESS                              ----------------------------------------------
- ------------------------------
<S>                                  <C>
Edward R. Telling* ...........       Retired;  Director  or  Trustee  of  the  Dean
Trustee                              Witter  Funds; formerly Chairman  of the Board
Sears Tower                          of  Directors  and  Chief  Executive   Officer
Chicago, Illinois                    (until  December 31, 1985) and President (from
                                     January, 1981-March, 1982  and from  February,
                                     1984-August,  1984) of Sears, Roebuck and Co.;
                                     formerly Director of Sears, Roebuck and Co.
Sheldon Curtis ...............       Senior Vice President,  Secretary and  General
Vice President, Secretary            Counsel  of InterCapital and DWSC; Senior Vice
 and General Counsel                 President and Secretary  of Dean Witter  Trust
Two World Trade Center               Company  (since  October,  1989);  Senior Vice
New York, New York                   President, Assistant  Secretary and  Assistant
                                     General  Counsel  of Dean  Witter Distributors
                                     Inc.; Assistant  Secretary  of DWDC  and  Dean
                                     Witter;  Vice President, Secretary and General
                                     Counsel of  the  Dean  Witter  Funds  and  the
                                     TCW/DW Funds.
Patricia A. Cuddy ............       Vice  President  of InterCapital  (since June,
Vice President                       1994); Vice President  of various Dean  Witter
Two World Trade Center               Funds;   formerly  Senior  Vice  President  of
New York, New York                   various  investment   companies   managed   by
                                     Dreyfus Corporation.
Jonathan R. Page .............       Senior  Vice  President of  InterCapital; Vice
Vice President                       President of various Dean Witter funds.
Two World Trade Center
New York, New York
Katherine H. Stromberg .......       Vice President of InterCapital since  October,
Vice President                       1991. Previously Vice President and Investment
Two World Trade Center               Officer of Kidder Peabody Asset Management for
New York, New York                   over five years.
Thomas F. Caloia .............       First  Vice  President (since  May,  1991) and
Treasurer                            Assistant  Treasurer   of   InterCapital   and
Two World Trade Center               Treasurer  of  the Dean  Witter Funds  and the
New York, New York                   TCW/DW Funds;  previously  Vice  President  of
                                     InterCapital.
</TABLE>

- ------------
 *Denotes Trustees who are "Interested persons" of the Trusts, as defined in the
  Act.

    In  addition, Robert  M. Scanlan, President  and Chief  Operating Officer of
InterCapital and DWSC,  Executive Vice  President of DWTC  and Distributors  and
Director   of  DWTC,  David  A.  Hughey,  Executive  Vice  President  and  Chief
Administrative Officer of InterCapital, DWSC and Distributors and President  and
Director  of DWTC, Edmund C. Puckhaber, Executive Vice President of InterCapital
and James F. Willison, Senior Vice President of InterCapital are Vice Presidents
of the Fund. Barry Fink and Marilyn Cranney, First Vice Presidents and Assistant
General Counsels of InterCapital and Lawrence  S. Lafer, Lou Ann D. McInnis  and
Ruth  Rossi, Vice Presidents and Assistant  General Counsels of InterCapital are
Assistant Secretaries of the Funds.

    The Trust pays each Trustee who is not an employee, or retired employee,  of
the  Investment Manager or an affiliated company an annual fee of $1,200 ($1,600
prior to December 31, 1993) plus $50  for each meeting of the Board of  Trustees
or  any Committee of  the Board of  Trustees attended by  the Trustee (the Trust
pays the Chairman of  the Audit Committee an  additional fee of $1,000,  ($1,200
prior to December 31, 1993) inclusive of the Committee meeting fee, and pays the
Chairman  of the Committee of the  Independent Trustees an additional annual fee
of $2,400, in  each case inclusive  of the Committee  meeting fees). Each  Trust
also  reimburses  such  Trustees  for travel  and  other  out-of-pocket expenses

                                      A-10
<PAGE>
incurred by  them  in connection  with  attending such  meetings.  Trustees  and
officers of the Trust who are or have been employed by the Investment Manager or
an  affiliated company receive no compensation or expense reimbursement from the
Trusts. Each Trust has adopted a retirement program under which a Trustee who is
not an "interested person" of the Trust and who retires after a minimum required
period of service  would be entitled  to retirement payments  upon reaching  the
eligible  retirement age (normally, after attaining age 72) based upon length of
service and computed  as a  percentage of  one-fifth of  the total  compensation
earned by such Trustee for service to the Trust in the five-year period prior to
the  date of the Trustee's retirement, subject to a maximum amount per year. For
the fiscal year  ended June 30,  1994, Money Trust,  Tax-Free Trust,  California
Tax-Free  Trust and Government Securities Trust each accrued a total of $32,025,
$32,099, $26,082  and $31,760,  respectively, in  Trustees' fees,  expenses  and
benefits  under the above-described retirement program. As of July 31, 1993, the
aggregate amount  of shares  owned in  each Trust  by the  Trusts' officers  and
Trustees  as  a group  was  less than  1  percent of  the  shares of  each Trust
outstanding.

PORTFOLIO TRANSACTIONS AND BROKERAGE
- --------------------------------------------------------------------------------

    The Investment  Manager  is  responsible  for  decisions  to  buy  and  sell
securities  for the Trusts and arranges  for the execution of portfolio security
transactions on behalf of the Trusts. Purchases of portfolio securities are made
from dealers, underwriters and  issuers; sales, if any,  prior to maturity,  are
made  to dealers  and issuers.  The Trusts do  not normally  incur any brokerage
commission expense on such transactions. Money market instruments are  generally
traded  on a "net" basis with dealers acting as principal for their own accounts
without a stated commission, although the price of the security usually includes
a profit to the dealer. Securities purchased in underwritten offerings include a
fixed amount of compensation  to the underwriter, generally  referred to as  the
underwriter's  concession  or discount.  When securities  are purchased  or sold
directly from  or  to  an issuer,  no  commissions  or discounts  are  paid.  No
brokerage  commissions were paid on any  transactions entered into by the Trusts
during the fiscal year ended June 30, 1994.

    The policy of  the Trusts regarding  purchases and sales  of securities  for
their  respective  portfolios is  that primary  consideration  will be  given to
obtaining the most favorable price and efficient execution of transactions  with
those  dealers who  the Investment Manager  believes provide  the most favorable
prices and  are capable  of providing  efficient executions.  If the  Investment
Manager  believes such price  and execution can  be obtained from  more than one
dealer, it may give consideration  to placing portfolio transactions with  those
dealers  who  also furnish  research and  other  services to  the Trusts  or the
Investment Manager. Such services may include but are not limited to, any one or
more of the  following: information  as to  the availability  of securities  for
purchases  or sale; statistical or factual information or opinions pertaining to
investments;  wire  services;  and   appraisals  or  evaluations  of   portfolio
securities.

    The information and services received by the Investment Manager from dealers
may  be of benefit  to the Investment  Manager in the  management of accounts of
some or all of  its other clients and  may not in all  cases benefit the  Trusts
directly.  While the  receipt of  such information  and services  are useful and
important in  supplementing  its own  research  and facilities,  the  Investment
Manager  believes the value  of such services  is not determinable  and does not
significantly reduce its expenses. The Trusts  do not reduce the management  fee
they pay to the Investment Manager by any amount that may be attributable to the
value of such services.

    Pursuant  to an order of the  Securities and Exchange Commission, the Trusts
may effect principal transactions in certain money market instruments with  Dean
Witter.  The  Trusts will  limit  their transactions  with  Dean Witter  to U.S.
Government and  Government  Agency  Securities, Bank  Money  Instruments  (I.E.,
Certificates  of  Deposit and  Banker's Acceptances)  and Commercial  Paper (not
including Tax-Exempt Municipal Paper). Such  transactions will be effected  with
Dean  Witter only when the price available  from Dean Witter is better than that
available from other dealers.

    While the  Trusts do  not  anticipate that  they  will incur  any  brokerage
commissions,  consistent with the policy described above, brokerage transactions
in securities listed on exchanges or admitted to

                                      A-11
<PAGE>
unlisted trading privileges may  be effected through Dean  Witter. In order  for
Dean  Witter  to  effect  portfolio  transactions for  any  of  the  Trusts, the
commissions, fees  or  other  remuneration  received  by  Dean  Witter  must  be
reasonable and fair compared to the commissions, fees or other remuneration paid
to  other brokers in  connection with comparable  transactions involving similar
securities being purchased or sold on an exchange during a comparable period  of
time.  This  standard  would allow  Dean  Witter  to receive  no  more  than the
remuneration which would be expected to be received by an unaffiliated broker in
a commensurate arm's-length transaction. Furthermore, the Trustees of the Trust,
including a majority  of the Trustees  who are not  "interested" Trustees,  have
adopted   procedures  which  are   reasonably  designed  to   provide  that  any
commissions, fees or other remuneration paid to Dean Witter are consistent  with
the foregoing standard.

GENERAL INFORMATION
- --------------------------------------------------------------------------------

    As  discussed in the Prospectus, the shareholders of the Trusts are entitled
to a full vote for each full share  held. The Trustees have been elected by  the
shareholders  of the Trusts. The Trustees themselves have the power to alter the
number and  the terms  of office  of  the Trustees,  and they  may at  any  time
lengthen  their own terms or make their  terms of unlimited duration and appoint
their own successors, provided that always  at least a majority of the  Trustees
has been elected by the shareholders of the Trust. Under certain circumstances a
Trustee may be removed by action of the Trustees. The shareholders also have the
right  under certain circumstances to remove  the Trustees. The voting rights of
shareholders are not cumulative, so that holders of more than 50 percent of  the
shares  voting can, if they choose, elect all Trustees being selected, while the
holders of the remaining shares would be unable to elect any Trustees.

    The Declarations of Trust permit the  Trustees to authorize the creation  of
additional  series  of  shares  (the  proceeds of  which  would  be  invested in
separate, independently  managed portfolios)  and additional  classes of  shares
within  any  series (which  would be  used  to distinguish  among the  rights of
different categories of shareholders, as might be required by future regulations
or other unforeseen  circumstances). However, the  Trustees have not  authorized
any such additional series or classes of shares.

    The Declarations of Trust further provide that no Trustee, officer, employee
or  agent of the Trusts is  liable to any Trust or  to a shareholder, nor is any
Trustee, officer, employee or  agent liable to any  third persons in  connection
with  the affairs of any Trust, except  as such liability may arise from his/her
or its  own  bad  faith,  willful misfeasance,  gross  negligence,  or  reckless
disregard  of his/her  or its  duties. It also  provides that  all third persons
shall look solely to  a Trust's property for  satisfaction of claims arising  in
connection  with  the affairs  of that  Trust. With  the exceptions  stated, the
Declarations of Trust  provide that  a Trustee,  officer, employee  or agent  is
entitled  to be indemnified against all liability in connection with the affairs
of any Trust.

    The Trusts shall be of unlimited  duration subject to the provisions in  the
Declarations of Trust concerning termination by action of the shareholders.

CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------

    The Bank of New York, 110 Washington Street, New York, New York 10286 is the
Custodian  of the  Trusts' assets.  The Custodian  has no  part in  deciding the
Trusts' investment policies or which securities are to be purchased or sold  for
the  Trusts' portfolios. Any of the Trust's  cash balances with the Custodian in
excess of $100,000 are unprotected  by Federal deposit insurance. Such  balances
may, at times, be substantial.

    Dean  Witter Trust Company,  Harborside Financial Center,  Plaza Two, Jersey
City, New Jersey  07311 is the  Transfer Agent of  the Trust's shares,  Dividend
Disbursing Agent for payment of dividends and distributions on Trust shares, and
Agent  for shareholders  under various  investment plans  described herein, Dean
Witter Trust  Company is  an affiliate  of Dean  Witter InterCapital  Inc.,  the
Trusts' Investment

                                      A-12
<PAGE>
Manager,  and  of Dean  Witter Distributors  Inc.,  the Trusts'  Distributor. As
Transfer Agent  and  Dividend  Disbursing Agent,  Dean  Witter  Trust  Company's
responsibilities  include  maintaining  shareholder  accounts;  disbursing  cash
dividends and reinvesting  dividends; processing  account registration  changes;
handling purchase and redemption transactions; mailing prospectuses and reports;
mailing  and tabulating proxies; processing  share certificate transactions; and
maintaining shareholder records and lists. For these services Dean Witter  Trust
Company receives a per shareholder account fee.

INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------

    Price  Waterhouse LLP serves  as the independent  accountants of the Trusts.
The independent accountants  are responsible for  auditing the annual  financial
statements of the Trusts.

REPORTS TO SHAREHOLDERS
- --------------------------------------------------------------------------------

    The Trusts will send to shareholders, at least semiannually, reports showing
the  Trusts'  portfolios and  other  information. An  annual  report, containing
financial statements  audited  by  independent  accountants,  will  be  sent  to
shareholders each year.

    The  Trusts' fiscal years  end on June  30. The financial  statements of the
Trusts must be  audited at least  once a year  by independent accountants  whose
selection is approved annually by the Trusts' Trustees.

LEGAL COUNSEL
- --------------------------------------------------------------------------------

    Sheldon  Curtis, Esq.,  who is  an officer  and the  General Counsel  of the
Investment Manager, is an officer and the General Counsel of the Trusts.

EXPERTS
- --------------------------------------------------------------------------------

    The financial statements  of the  Trusts included in  the Prospectuses  have
been so included and incorporated by reference in these Statements of Additional
Information  in  reliance on  the report  of  Price Waterhouse  LLP, independent
accountants, given on  the authority  of said firm  as experts  in auditing  and
accounting.

REGISTRATION STATEMENT
- --------------------------------------------------------------------------------

    These  Statements  of Additional  Information  and the  Prospectuses  do not
contain all of  the information  set forth  in the  Registration Statements  the
Trusts  have filed  with the  Securities and  Exchange Commission.  The complete
Registration Statements  may  be  obtained  from  the  Securities  and  Exchange
Commission  upon payment of the fees prescribed  by the rules and regulations of
the Commission.

    The Declaration of Trust establishing each Trust, a copy of which is on file
in the office of  the Secretary of the  Commonwealth of Massachusetts,  provides
that the Trust refer to the Trustees under the Declaration of Trust collectively
as  Trustees, but not as individuals or personally; and no Trustee, shareholder,
officer, employee  or  agent  of  such  Trust shall  be  held  to  any  personal
liability,   nor  shall  resort  be  had  to  their  private  property  for  the
satisfaction of any  obligation or  claim or  otherwise in  connection with  the
affairs of said Trusts but that the Trust Estate only shall be liable.

                                      A-13
<PAGE>
INFORMATION WITH RESPECT TO SECURITIES RATINGS
- --------------------------------------------------------------------------------

CORPORATE AND TAX-EXEMPT BOND RATINGS:

    The  four highest ratings of Moody's Investors Service, Inc. ("Moody's") for
tax-exempt and  corporate  bonds are  Aaa,  Aa, A  and  Baa, all  of  which  are
considered  investment grade.  Bonds rated  Aaa are  judged to  be of  the "best
quality". The rating of Aa  is assigned to bonds which  are of "high quality  by
all  standards", but as  to which margins  of protection or  other elements make
long-term risks appear  somewhat larger  than Aaa rated  bonds. The  Aaa and  Aa
rated bonds comprise what are generally known as "high grade bonds". Bonds which
are  rated A  by Moody's  possess many  favorable investment  attributes and are
considered  "upper  medium  grade  obligations".  Factors  giving  security   to
principal  and interest of  A-rated bonds are  considered adequate, but elements
may be present  which suggest  a susceptibility  to impairment  sometime in  the
future.  Bonds rated Baa are considered  as "medium grade" obligations. They are
neither highly protected  nor poorly  secured. Interest  payments and  principal
security  appear adequate for the present but certain protective elements may be
lacking or may be characteristically unreliable  over any great length of  time.
Such  bonds  lack  outstanding  investment  characteristics  and  in  fact  have
speculative characteristics as well. Moody's  applies numerical modifiers, 1,  2
and  3 in each rating classification for  Aa and below. The modifier 1 indicates
that the  security ranks  in the  higher end  of its  category; the  modifier  2
indicates a mid-range ranking; and the modifier 3 indicates that the issue ranks
in  the lower end of its category. The foregoing ratings are sometimes presented
in parentheses  preceded  with a  "con"  indicating  that the  bonds  are  rated
conditionally. Bonds, the security for which depends upon the completion of some
act  or the  fulfillment of some  condition, are rated  conditionally. These are
bonds secured by (a)  earnings of projects under  construction, (b) earnings  of
projects  unseasoned  in  operation  experience, (c)  rentals  which  begin when
facilities are completed, or (d) payments to which some other limiting condition
attaches. Such parenthetical  rating denotes  the probable  credit stature  upon
completion of construction or elimination of the basis of the condition.

    The  four  highest ratings  of Standard  &  Poor's Corporation  ("Standard &
Poor's") for tax-exempt and corporate bonds are AAA, AA, A, and BBB all of which
are considered  investment  grade.  Bonds  rated AAA  bear  the  highest  rating
assigned  by Standard & Poor's to a debt obligation, and the rating indicates an
extremely strong capacity  to pay principal  and interest. Bonds  rated AA  also
qualify as high quality debt obligations. Capacity to pay principal and interest
is  very strong, and  in the majority  of instances they  differ from AAA issues
only in small degree. Bonds  rated A have strong  capacity to pay principal  and
interest,  although they are somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions.  The BBB rating, which is  the
lowest  "investment grade"  security rating by  Standard &  Poor's, indicates an
adequate capacity to pay principal  and interest. Whereas they normally  exhibit
adequate   protection  parameters,  adverse   economic  conditions  or  changing
circumstances are more likely  to lead to a  weakened capacity to pay  principal
and  interest for bonds in  this category than for bonds  in the A category. The
ratings for AA and below may be modified by the addition of a plus or minus sign
to show  relative standing  within the  major rating  categories. The  foregoing
ratings  are sometimes  followed by  a "p", which  indicates that  the rating is
provisional. A  provisional  rating assumes  the  successful completion  of  the
project  being financed by the  bonds being rated and  indicates that payment of
debt service requirements is largely  or entirely dependent upon the  successful
and  timely completion  of the project.  This rating,  however, while addressing
credit quality subsequent to completion of the project, makes no comment on  the
likelihood or risk of default upon failure of such completion.

TAX-EXEMPT NOTES

    The  two highest  ratings of Moody's  for Notes are  MIG 1 and  MIG 2. Notes
bearing the designation MIG  1 are judged  to be of  the best quality,  enjoying
strong  protection from established  cash flows of funds  for their servicing or
from established  and  broad-based access  to  the market  for  refinancing,  or

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both. Notes bearing the designation MIG 2 are judged to be of high quality, with
margins of protection ample although not so large as in the preceding group. The
ratings  of Standard  & Poor's  for Notes  are the  same as  for Bonds, although
somewhat different criteria is applied.

    The three highest ratings of Standard & Poor's for Notes are SP-1+, SP-1 and
SP-2. Notes  designated  SP-1+ are  determined  to possess  overwhelming  safety
characteristics   regarding  capacity  to  pay  principal  and  interest.  Notes
designated SP-1 are determined to possess very strong or strong capacity to  pay
principal  and  interest.  Notes  designated  SP-2  are  determined  to  possess
satisfactory capacity to pay principal and interest.

COMMERCIAL PAPER

    Moody's and  Standard  & Poor's  ratings  grades for  commercial  paper  and
short-term  Municipal Obligations,  set forth  below, are  applied to short-term
Municipal Obligations as well as taxable commercial paper.

    Moody's ratings are opinions of the  ability of issuers to repay  punctually
promissory obligations not having an original maturity in excess of nine months.
Moody's  employs the following  three designations, all  judged to be investment
grade, to indicate the  relative repayment capacity  of rated issuers:  Prime-1,
Highest Quality; Prime-2, Higher Quality; and Prime-3, High Quality.

    Standard  & Poor's  ratings are  a current  assessment of  the likelihood of
timely payment of debt having an original maturity of no more than 365 days. The
rating is not a recommendation to purchase  or sell a security. The ratings  are
based  upon current information furnished by the  issuer or obtained by S&P from
other sources it considers reliable. The  ratings may be changed, suspended,  or
withdrawn as a result of changes in or unavailability of such information.

    Ratings  are graded into  four categories, ranging from  "A" for the highest
quality obligations  to  "D" for  the  lowest.  Issues assigned  A  ratings  are
regarded  as having  the greatest  capacity for  timely payment.  Issues in this
category are further refined  with the designation  1, 2 and  3 to indicate  the
relative  degree of safety. The "A-1+"  and "A-1" designations indicate that the
degree of safety regarding timely payment is very strong.

VARIABLE RATE DEMAND OBLIGATIONS

    In addition to the Bond or MIG  ratings of variable rate obligations with  a
demand feature, Moody's may assign a second rating to the demand feature itself.
Such  ratings are designated as VMIG, or if  the demand feature is not rated, as
NR. Short-term ratings on issues with demand features are differentiated by  use
of  the VMIG  symbol to  reflect such  characteristics as  payment upon periodic
demand, rather  than  fixed  maturity  dates and  payment  relying  on  external
liquidity. The two highest ratings for the demand feature are VMIG 1 and VMIG 2.
These  ratings reflect  Moody's judgements regarding  the quality  of the demand
features which are identical to the  criteria involved in assigning the  ratings
MIG 1 and MIG 2, respectively, to tax-exempt Notes as discussed above.

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