MORGAN STANLEY DEAN WITTER CALIF TAX FREE DAILY INCOME TRUST
485BPOS, 1999-04-01
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 1, 1999
    
 
                                                    REGISTRATION NOS.:  33-21803
                                                                        811-5554
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                ----------------
 
                                   FORM N-1A
                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933                     /X/
                          PRE-EFFECTIVE AMENDMENT NO.
                                      ----                                   / /
                       POST-EFFECTIVE AMENDMENT NO. 12                       /X/
                                     AND/OR
              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940                                /X/
                               AMENDMENT NO. 14                              /X/
                              -------------------
 
       MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
         (FORMERLY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST)
 
                        (A MASSACHUSETTS BUSINESS TRUST)
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
 
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICE)
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (212) 392-1600
 
                                BARRY FINK, ESQ.
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)
                            ------------------------
 
                                    COPY TO:
                            DAVID M. BUTOWSKY, ESQ.
                         GORDON ALTMAN BUTOWSKY WEITZEN
                                 SHALOV & WEIN
                              114 WEST 47TH STREET
                            NEW YORK, NEW YORK 10036
                                ----------------
 
                 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
 
 As soon as practicable after this Post-Effective Amendment becomes effective.
 
 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)
 
        ___ immediately upon filing pursuant to paragraph (b)
 
        _X_ on April 5, 1999 pursuant to paragraph (b)
 
        ___ 60 days after filing pursuant to paragraph (a)
 
        ___ on (date) pursuant to paragraph (a) of rule 485
 
           AMENDING THE PROSPECTUS AND UPDATING FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
       MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
 
                             CROSS-REFERENCE SHEET
 
                                   FORM N-1A
 
<TABLE>
<CAPTION>
ITEM                                               CAPTION
- ------------------------------------------------------------------------------------------
<S>                 <C>
PART A                                            PROSPECTUS
 1.  ............... Cover Page; Back Cover
 
 2.  ............... Investment Objectives; Principal Investment Strategies; Principal
                     Risks; Past Performance
 
 3.  ............... Fees and Expenses
 
 4.  ............... Investment Objective; Additional Investment Strategy Information;
                     Additional Risk Information
 
 5.  ............... Not Applicable
 
 6.  ............... Fund Management
 
 7.  ............... Pricing Fund Shares; How to Buy Shares; How to Exchange Shares; How to
                     Sell Shares; Distributions; Tax Consequences
 
 8.  ............... Plan of Distribution
 
 9.  ............... Financial Highlights
</TABLE>
 
<TABLE>
<S>                   <C>
PART B                         STATEMENT OF ADDITIONAL INFORMATION
</TABLE>
 
    Information required to be included in Part B is set forth under the
appropriate caption in Part B of this Registration Statement.
 
<TABLE>
<S>                   <C>
PART C
</TABLE>
 
    Information required to be included in Part C is set forth under the
appropriate item, so numbered, in Part C of this Registration Statement.
<PAGE>
   
                                                      PROSPECTUS - APRIL 5, 1999
    
 
Morgan Stanley Dean Witter
                                          CALIFORNIA TAX-FREE DAILY INCOME TRUST
 
                                 [COVER PHOTO]
 
                      A MONEY MARKET FUND THAT SEEKS TO PROVIDE AS HIGH A LEVEL
                         OF DAILY INCOME EXEMPT FROM FEDERAL AND CALIFORNIA
                             INCOME TAX AS IS CONSISTENT WITH STABILITY
                                     OF PRINCIPAL AND LIQUIDITY
 
   
  The Securities and Exchange Commission has not approved or disapproved these
securities or passed upon the adequacy of this Prospectus. Any representation to
                      the contrary is a criminal offense.
    
<PAGE>
CONTENTS
 
   
<TABLE>
<S>                       <C>                                                     <C>
The Fund                  Investment Objective..................................                   1
                          Principal Investment Strategies.......................                   1
                          Principal Risks.......................................                   2
                          Past Performance......................................                   3
                          Fees and Expenses.....................................                   4
                          Fund Management.......................................                   5
 
Shareholder Information   Pricing Fund Shares...................................                   6
                          How to Buy Shares.....................................                   6
                          How to Exchange Shares................................                   8
                          How to Sell Shares....................................                  10
                          Distributions.........................................                  12
                          Tax Consequences......................................                  13
 
Financial Highlights      ......................................................                  14
 
Our Family of Funds       ......................................................   Inside Back Cover
 
                          THIS PROSPECTUS CONTAINS IMPORTANT INFORMATION ABOUT THE FUND.
                          PLEASE READ IT CAREFULLY AND KEEP IT FOR FUTURE REFERENCE.
</TABLE>
    
 
           FUND CATEGORY
           ---------------------------
       / / Growth
 
       / / Growth and Income
 
       / / Income
 
       /X/ MONEY MARKET
<PAGE>
(SIDEBAR)
MONEY MARKET
A MUTUAL FUND HAVING THE GOAL TO SELECT SECURITIES TO PROVIDE CURRENT INCOME
WHILE SEEKING TO MAINTAIN A STABLE SHARE PRICE OF $1.00.
YIELD
THE FUND'S YIELD REFLECTS THE ACTUAL INCOME THE FUND PAYS TO YOU EXPRESSED AS A
PERCENTAGE OF THE FUND'S SHARE PRICE. BECAUSE THE FUND'S INCOME FROM ITS
PORTFOLIO SECURITIES WILL FLUCTUATE, THE INCOME IT IN TURN DISTRIBUTES TO YOU
AND THE FUND'S YIELD WILL VARY.
(END SIDEBAR)
 
THE FUND
 
ICON  INVESTMENT OBJECTIVE
- --------------------------------------------------------------------------------
           Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
           (the "Fund") is a money market fund that seeks to provide as high a
           level of daily income exempt from federal and California income tax
           as is consistent with stability of principal and liquidity. There is
           no guarantee that the Fund will achieve this objective.
 
ICON  PRINCIPAL INVESTMENT STRATEGIES
- --------------------------------------------------------------------------------
The Fund will invest in high quality, short-term securities that are normally
municipal obligations that pay interest exempt from federal and California
income taxes. The Fund's "Investment Manager," Morgan Stanley Dean Witter
Advisors Inc., seeks to maintain the Fund's share price at $1.00. The share
price remaining stable at $1.00 means that the Fund would preserve the principal
value of your investment.
 
The Investment Manager generally invests substantially all of the Fund's assets
in California municipal obligations. The interest on these investments is exempt
from California state and federal income tax. The Fund may invest up to 20% of
its assets in securities that pay interest income subject to the "alternative
minimum tax," and some taxpayers may have to pay tax on a Fund distribution of
this income; see the "Tax Consequences" section of this PROSPECTUS for more
details.
 
Municipal obligations are securities issued by state and local governments and
regional government authorities. These securities typically are "general
obligation" or "revenue" bonds, notes or commercial paper. The general
obligation securities are secured by the issuer's faith and credit, as well as
its taxing power, for payment of principal and interest. Revenue bonds, however,
are generally payable from a specific revenue source. They are issued for a wide
variety of projects such as financing public utilities, housing units, airports
and highways, and schools. Included within the revenue bonds category are
participations in lease obligations and installment contracts of municipalities.
 
The Fund has a fundamental policy of investing at least eighty percent of its
assets in securities the interest on which is exempt from federal and California
income tax. The fundamental policies may not be changed without shareholder
approval.
 
                                                                               1
<PAGE>
ICON  PRINCIPAL RISKS
- --------------------------------------------------------------------------------
           CREDIT AND INTEREST RATE RISKS. A principal risk of investing in the
           Fund is associated with its municipal investments, particularly its
           concentration in municipal obligations of a single state. Municipal
           obligations, as with all debt securities, are subject to two types of
           risks: credit risk and interest rate risk.
 
Credit risk refers to the possibility that the issuer of a security will be
unable to make interest payments and repay the principal on its debt. However,
unlike most fixed-income mutual funds, the Fund is subject to the added credit
risk of concentrating its investments in a single state -- California -- and its
municipalities. Because the Fund concentrates its investments in securities
issued by California state and local governments and government authorities, the
Fund could be affected by political, economic and regulatory developments
concerning these issuers. Should any difficulties develop concerning California
issuers' ability to pay principal and/or interest on their debt obligations; the
Fund's value and yield could be adversely affected.
 
Interest rate risk, another risk of debt securities, refers to fluctuations in
the value of a fixed-income security resulting from changes in the general level
of interest rates.
 
The Investment Manager, however, actively manages the Fund's assets to reduce
the risk of losing any principal investment as a result of credit or interest
rate risks. The Fund's assets are reviewed to maintain or improve
creditworthiness. In addition, federal regulations require money market funds,
such as the Fund, to invest only in debt obligations of high quality and
short-term maturities.
 
An investment in the Fund is not a deposit of a bank and is not insured or
guaranteed by the FDIC or any other government agency. Although the Fund seeks
to preserve the value of your investment at $1.00 per share, if it is unable to
do so, it is possible to lose money by investing in the Fund.
 
           YEAR 2000. The Fund could be adversely affected if the computer
           systems necessary for the efficient operation of the Investment
           Manager, the Fund's other service providers and the markets and
           individual and governmental issuers in which the Fund invests do not
           properly process and calculate date-related information from and
           after January 1, 2000. While year 2000-related computer problems
           could have a negative effect on the Fund, the Investment Manager and
           affiliates are working hard to avoid any problems and to obtain
           assurances from their service providers that they are taking similar
           steps.
 
2
<PAGE>
   
(SIDEBAR)
ANNUAL TOTAL RETURNS
THIS CHART SHOWS HOW THE PERFORMANCE OF THE FUND'S SHARES HAS VARIED FROM YEAR
TO YEAR DURING THE PAST 10 YEARS.
    
   
AVERAGE ANNUAL
TOTAL RETURNS
THIS TABLE COMPARES THE FUND'S AVERAGE ANNUAL RETURNS WITH THOSE OF A BROAD
MEASURE OF MARKET PERFORMANCE OVER TIME AND ASSUME YOU SOLD YOUR SHARES AT THE
END OF EACH PERIOD.
    
(END SIDEBAR)
 
ICON  PAST PERFORMANCE
- --------------------------------------------------------------------------------
   
           The bar chart and table below provide some indication of the risks of
           investing
           in the Fund. For the Fund's most recent 7-day annualized yield you
           may call (800) 869-NEWS. The Fund's past performance does not
           indicate how the Fund will perform in the future.
    
 
   
ANNUAL TOTAL RETURNS - CALENDAR YEARS
    
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<S>        <C>
1989           5.70%
1990           5.04%
1991           3.77%
1992           2.37%
1993           1.78%
1994           2.17%
1995           3.04%
1996           2.68%
1997           2.83%
1998           2.54%
</TABLE>
 
   
During the periods shown in the bar chart, the highest return for a calendar
quarter was 1.52% (quarter ended June 30, 1989) and the lowest return for a
calendar quarter was 0.40% (quarter ended March 31, 1994). Year-to-date total
return as of February 28, 1999 was 0.31%.
    
 
   
<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS (FOR THE PERIODS ENDED THE 1998 CALENDAR YEAR)
- -------------------------------------------------------------------------------
                                     PAST 1 YEAR   PAST 5 YEARS   PAST 10 YEARS
<S>                                  <C>           <C>            <C>
- -------------------------------------------------------------------------------
 California Tax-Free Daily Income
 Trust                                  2.54%         2.65%           3.19%
- -------------------------------------------------------------------------------
 Lipper California Tax-Exempt Money
 Market Index(1)                        2.77%         3.00%           3.47%
- -------------------------------------------------------------------------------
</TABLE>
    
 
   
1    The Lipper California Tax-Exempt Money Market Funds Index is an
     equally-weighted performance index of the largest qualifying funds (based
     on net assets) in the Lipper California Tax-Exempt Money Market Funds
     objective. The index, which is adjusted for capital gains distributions and
     income dividends, is unmanaged and should not be considered an investment.
     There are currently 30 funds represented in this index.
 
                                                                               3
    
<PAGE>
(SIDEBAR)
ANNUAL FUND
OPERATING EXPENSES
THESE EXPENSES ARE DEDUCTED FROM THE FUND'S ASSETS AND ARE BASED ON EXPENSES
PAID FOR THE FISCAL YEAR ENDED DECEMBER 31, 1998.
(END SIDEBAR)
 
ICON  FEES AND EXPENSES
- --------------------------------------------------------------------------------
   
The Fund is a no-load fund. The table below briefly describes the fees and
expenses that you may pay if you buy and hold shares of the Fund. The Fund does
not impose any sales charges and does not charge account or exchange fees.
    
 
<TABLE>
<S>                                                           <C>
 ANNUAL FUND OPERATING
 EXPENSES
- -----------------------------------------------------------------------
 Management Fee                                                 0.50%
- -----------------------------------------------------------------------
 Distribution and service (12b-1) fees                          0.10%
- -----------------------------------------------------------------------
 Other expenses                                                 0.10%
- -----------------------------------------------------------------------
 Total annual Fund operating expenses                           0.70%
- -----------------------------------------------------------------------
</TABLE>
 
   
           EXAMPLE
    
   
           This example is intended to help you compare the cost of investing in
           the Fund with the cost of investing in other mutual funds.
    
 
The example assumes that you invest $10,000 in the Fund, your investment has a
5% return each year, and the Fund's operating expenses remain the same. Although
your actual costs may be higher or lower, the table below shows your costs at
the end of each period based on these assumptions.
 
   
<TABLE>
<CAPTION>
                 1 YEAR    3 YEARS    5 YEARS    10 YEARS
<S>              <C>       <C>        <C>        <C>
- ----------------------------------------------------------
                   $71       $223       $389        $868
- ----------------------------------------------------------
</TABLE>
    
 
4
<PAGE>
   
(SIDEBAR)
MORGAN STANLEY DEAN WITTER ADVISORS INC.
THE INVESTMENT MANAGER IS WIDELY RECOGNIZED AS A LEADER IN THE MUTUAL FUND
INDUSTRY AND TOGETHER WITH MORGAN STANLEY DEAN WITTER SERVICES COMPANY INC., ITS
WHOLLY-OWNED SUBSIDIARY, HAS MORE THAN $126.2 BILLION IN ASSETS UNDER MANAGEMENT
OR ADMINISTRATION AS OF FEBRUARY 28, 1999.
    
(END SIDEBAR)
 
ICON  FUND MANAGEMENT
- --------------------------------------------------------------------------------
The Fund has retained the Investment Manager -- Morgan Stanley Dean Witter
Advisors Inc. -- to provide administrative services, manage its business affairs
and invest its assets, including the placing of orders for the purchase and sale
of portfolio securities. The Investment Manager is a wholly-owned subsidiary of
Morgan Stanley Dean Witter & Co., a preeminent global financial services firm
that maintains leading market positions in each of its three primary businesses:
securities, asset management and credit services. Its main business office is
located at Two World Trade Center, New York, NY 10048.
 
   
The Fund pays the Investment Manager a monthly management fee as full
compensation for the services and facilities furnished to the Fund, and for Fund
expenses assumed by the Investment Manager. The fee is based on the Fund's
average daily net assets. For the fiscal year ended December 31, 1998, the Fund
accrued total compensation to the Investment Manager amounting to 0.50% of the
Fund's average daily net assets.
    
 
                                                                               5
<PAGE>
   
(SIDEBAR)
CONTACTING A FINANCIAL ADVISOR
IF YOU ARE NEW TO THE MORGAN STANLEY DEAN WITTER FAMILY OF FUNDS AND WOULD LIKE
TO CONTACT A FINANCIAL ADVISOR, CALL (800) THE-DEAN FOR THE TELEPHONE NUMBER OF
THE MORGAN STANLEY DEAN WITTER OFFICE NEAREST YOU.
YOU MAY ALSO ACCESS OUR OFFICE LOCATOR ON OUR INTERNET SITE AT:
WWW.DEANWITTER.COM/FUNDS
    
(END SIDEBAR)
 
SHAREHOLDER INFORMATION
 
ICON  PRICING FUND SHARES
- --------------------------------------------------------------------------------
           The price of Fund shares, called "net asset value," is based on the
           amortized cost of the Fund's portfolio securities. The amortized cost
           valuation method involves valuing a debt obligation in reference to
           its cost, rather than market forces.
 
   
The net asset value per share of the Fund is determined once daily at 4:00 p.m.
Eastern time on each day that the New York Stock Exchange is open (or, on days
when the New York Stock Exchange closes prior to 4:00 p.m., at such earlier
time). Shares will not be priced on days that the New York Stock Exchange is
closed.
    
 
ICON  HOW TO BUY SHARES
- --------------------------------------------------------------------------------
   
             You may open a new account to buy Fund shares or buy additional
             Fund shares for an existing account in several ways. When you buy
             Fund shares, the shares are purchased at the next share price
             calculated after we receive your investment in proper form and
             accompanied by federal or other immediately available funds. You
             begin earning dividends the business day after the shares are
             purchased. We reserve the right to reject any order for the
             purchase of Fund shares.
    
 
   
<TABLE>
<CAPTION>
MINIMUM INVESTMENT AMOUNTS
- ---------------------------------------------------------------------
                                              MINIMUM INVESTMENT
                                          ---------------------------
 INVESTMENT OPTIONS                          INITIAL      ADDITIONAL
<S>                                       <C>             <C>
- ---------------------------------------------------------------------
 Regular Accounts
                                              $5,000         $ 100
- ---------------------------------------------------------------------
 EASYINVEST-SM-
 (Automatically from your checking or
 savings account)
                                           Not Available     $ 100*
- ---------------------------------------------------------------------
</TABLE>
    
 
   
*    Provided your schedule of investments totals $1,000 in twelve months.
 
    
 
   
                            There is no minimum investment amount if you
                            purchase Fund shares through: (1) the Investment
                            Manager's mutual fund asset allocation plan, or (2)
                            a program, approved by the Fund's distributor, in
                            which you pay an asset-based fee for advisory,
                            administrative and/or brokerage services or (3)
                            employer-sponsored employee benefit plan accounts.
    
 
6
<PAGE>
 
   
<TABLE>
<CAPTION>
 INVESTMENT
 OPTIONS            PROCEDURES
<S>                 <C>
- --------------------------------------------------------------------------------
 Contact Your       NEW ACCOUNTS AND SUBSEQUENT INVESTMENTS
 Financial          You may buy Fund shares by contacting your Morgan Stanley
 Advisor            Dean Witter Financial Advisor or other authorized financial
                    representative. Your Financial Advisor will assist you,
 ICON               step-by-step, with the procedures to invest in the Fund.
- --------------------------------------------------------------------------------
 By Mail            NEW ACCOUNTS
                    To open a new account to buy Fund shares:
ICON
                    - Complete and sign the attached Application.
                    - Make out a check for the investment amount to: Morgan
                    Stanley Dean Witter California Tax-Free Daily Income Trust.
                    - Mail the Application and check to Morgan Stanley Dean
                    Witter Trust FSB at P.O. Box 1040, Jersey City, New Jersey
                      07303.
                    ------------------------------------------------------------
                    SUBSEQUENT INVESTMENTS
                    To buy additional shares for an existing Fund account:
                    - Write a "letter of instruction" to the Fund specifying the
                    name(s) on the account, the account number and the social
                      security or tax identification number, and the additional
                      investment amount. The letter must be signed by the
                      account owner(s).
                    - Make out a check for the investment amount to: Morgan
                    Stanley Dean Witter California Tax-Free Daily Income Trust.
                    - Mail the letter and check to Morgan Stanley Dean Witter
                    Trust FSB at the same address as for new accounts.
- --------------------------------------------------------------------------------
 By wire            NEW ACCOUNTS
                    To open a new account to buy Fund shares:
ICON
                    - Mail the attached Application, completed and signed, to
                    Morgan Stanley Dean Witter Trust FSB at P.O. Box 1040,
                      Jersey City, New Jersey 07303.
                    - Before sending instructions by wire, call us at (800)
                    869-NEWS advising us of your purchase and to confirm we have
                      received your Application.
                    - Wire the instructions specifying the name of the Fund and
                    your account number, along with the additional investment
                      amount, to The Bank of New York, for credit to the account
                      of Morgan Stanley Dean Witter Trust FSB, Harborside
                      Financial Center, Plaza Two, Jersey City, New Jersey
                      07303, Account No. 8900188413.
                    (When you buy Fund shares, wire purchase instructions
                    received by Morgan Stanley Dean Witter Trust FSB prior to
                    12:00 noon Eastern time are normally effective that day and
                    wire purchase instructions received after 12:00 noon are
                    normally effective the next business day.)
                    ------------------------------------------------------------
                    SUBSEQUENT INVESTMENTS
                    To buy additional shares for an existing Fund account:
                    - Before sending instructions by wire, call us at (800)
                      869-NEWS advising us of your purchase.
                    - Wire the instructions specifying the name of the Fund and
                    your account number, along with the investment amount, to
                      The Bank of New York, for credit to the account of Morgan
                      Stanley Dean Witter Trust FSB in the same manner as
                      opening an account.
                    (Also, when you buy Fund shares, wire purchase instructions
                    received by Morgan Stanley Dean Witter Trust FSB prior to
                    12:00 noon Eastern time are normally effective that day and
                    wire purchase instructions received after 12:00 noon are
                    normally effective the next business day.)
- --------------------------------------------------------------------------------
 EASYINVESTSM       NEW ACCOUNTS
 (Automatically     This program is not available to open a new Fund account or
 from your          a new account of another Money Market Fund.
 checking or        ------------------------------------------------------------
 savings            SUBSEQUENT INVESTMENTS
 account)           EASYINVEST-SM- is a purchase plan that allows you to
                    transfer money automatically from your checking or savings
                    account to an existing Fund account on a semi-monthly,
                    monthly or quarterly basis. Contact your Morgan Stanley Dean
                    Witter Financial Advisor or other authorized financial
                    representative for further information about this service.
ICON
- --------------------------------------------------------------------------------
</TABLE>
    
 
                                                                               7
<PAGE>
           ADDITIONAL PURCHASE INFORMATION. If you are a customer of Dean Witter
           Reynolds or another authorized dealer of Fund shares, you may upon
           request: (a) have the proceeds from the sale of listed securities
           invested in Fund shares the day after you receive the proceeds; and
           (b) pay for the purchase of certain listed securities by automatic
           sale of Fund shares that you own. In addition, if you are a customer
           of Dean Witter Reynolds or another authorized dealer of Fund shares,
           you may have cash balances in your securities account (which do not
           exceed $5,000) automatically invested in shares of the Fund on a
           weekly basis.
 
   
           PLAN OF DISTRIBUTION. The Fund has adopted a Plan of Distribution in
           accordance with Rule 12b-1 under the Investment Company Act of 1940.
           The Plan allows the Fund to pay distribution fees for the sale and
           distribution of these shares. It also allows the Fund to pay for
           services to shareholders. Because these fees are paid out of the
           Fund's assets on an ongoing basis, over time these fees will increase
           the cost of your investment and may cost you more than paying other
           types of sales charges.
    
 
ICON  HOW TO EXCHANGE SHARES
- --------------------------------------------------------------------------------
   
           PERMISSIBLE FUND EXCHANGES. You may only exchange shares of the Fund
           for shares of other continuously offered Morgan Stanley Dean Witter
           Funds if the Fund shares were acquired in an exchange of shares
           initially purchased in a Multi-Class Fund or an FSC Fund (subject to
           a front-end sales charge). In that case, the shares may be
           subsequently re-exchanged for shares of the same Class of any
           Multi-Class Fund or FSC Fund or for shares of another Money Market
           Fund, No-Load Fund or Short-Term U.S. Treasury Trust. Of course, if
           an exchange is not permitted, you may sell shares of the Fund and buy
           another Fund's shares with the proceeds.
    
 
See the inside back cover of this PROSPECTUS for each Morgan Stanley Dean Witter
Fund's designation as a Multi-Class Fund, FSC Fund, No-Load Fund or Money Market
Fund. If a Morgan Stanley Dean Witter Fund is not listed, consult the inside
back cover of that Fund's PROSPECTUS for its designation. For purposes of
exchanges, shares of FSC Funds are treated as Class A shares of a Multi-Class
Fund.
 
An exchange privilege account also may be maintained for you if you acquired
Fund shares in exchange for shares of various TCW/DW Funds.
 
The current PROSPECTUS for each fund describes its investment objective(s),
policies and investment minimums, and should be read before investing.
 
           EXCHANGE PROCEDURES. You can process an exchange by contacting your
           Morgan Stanley Dean Witter Financial Advisor or other authorized
           financial representative. Otherwise, you must forward an exchange
           privilege authorization form to the Fund's transfer agent - Morgan
           Stanley Dean Witter Trust FSB - and then write the transfer agent or
           call (800) 869-NEWS to place an exchange order. You can obtain an
           exchange privilege authorization form by contacting your Financial
           Advisor or other authorized financial representative or by calling
           (800) 869-NEWS. If you hold share certificates, no exchanges may be
           processed until we have received all applicable share certificates.
 
8
<PAGE>
An exchange to any Morgan Stanley Dean Witter Fund (except a Money Market Fund)
is made on the basis of the next calculated net asset values of the Funds
involved after the exchange instructions are accepted. When exchanging into a
Money Market Fund, the Fund's shares are sold at their next calculated net asset
value and the Money Market Fund's shares are purchased at their net asset value
on the following business day.
 
The Fund may terminate or revise the exchange privilege upon required notice.
Certain services normally available to shareholders of Money Market Funds,
including the check writing privilege, are not available for Money Market Fund
shares you acquire in an exchange.
 
           TELEPHONE EXCHANGES. For your protection when calling Morgan Stanley
           Dean Witter Trust FSB, we will employ reasonable procedures to
           confirm that exchange instructions communicated over the telephone
           are genuine. These procedures may include requiring various forms of
           personal identification such as name, mailing address, social
           security or other tax identification number. Telephone instructions
           also may be recorded.
 
   
Telephone instructions will be accepted if received by the Fund's transfer agent
between 9:00 a.m. and 4:00 p.m. Eastern time on any day the New York Stock
Exchange is open for business. During periods of drastic economic or market
changes, it is possible that the telephone exchange procedures may be difficult
to implement, although this has not been the case with the Fund in the past.
    
 
           MARGIN ACCOUNTS. If you have pledged your Fund shares in a margin
           account, contact your Morgan Stanley Dean Witter Financial Advisor or
           other authorized financial representative regarding restrictions on
           the exchange of such shares.
 
           EXCHANGING SHARES OF ANOTHER FUND SUBJECT TO A CONTINGENT DEFERRED
           SALES CHARGE ("CDSC"). There are special considerations when you
           exchange shares subject to a CDSC of another Morgan Stanley Dean
           Witter Fund for shares of the Fund. When determining the length of
           time you held the shares and the corresponding CDSC rate, any period
           (starting at the end of the month) during which you held shares of
           the Fund WILL NOT BE COUNTED. Thus, in effect the "holding period"
           for purposes of calculating the CDSC is frozen upon exchanging into
           the Fund. Nevertheless, if shares subject to a CDSC are exchanged for
           shares of the Fund, you will receive a credit when you sell the
           shares equal to the distribution (12b-1) fees, if any, you paid on
           those shares while in the Fund up to the amount of any applicable
           CDSC. See the PROSPECTUS of the Fund that charges the CDSC for more
           details.
 
           FREQUENT EXCHANGES. A pattern of frequent exchanges may result in the
           Fund limiting or prohibiting, at its discretion, additional purchases
           and/or exchanges. The Fund will notify you in advance of limiting
           your exchange privileges.
 
   
FOR FURTHER INFORMATION REGARDING EXCHANGE PRIVILEGES, YOU SHOULD CONTACT YOUR
MORGAN STANLEY DEAN WITTER FINANCIAL ADVISOR OR CALL (800) 869-NEWS.
    
 
                                                                               9
<PAGE>
ICON  HOW TO SELL SHARES
- --------------------------------------------------------------------------------
   
           You can sell some or all of your Fund shares at any time. Your shares
           will be sold at the next share price calculated after we receive your
           order to sell as described below.
    
 
   
<TABLE>
<CAPTION>
 OPTIONS            PROCEDURES
<S>                 <C>
- --------------------------------------------------------------------------------
 Contact your       To sell your shares, simply call your Morgan Stanley Dean
 Financial Advisor  Witter Financial Advisor or other authorized financial
                    representative.
                    ------------------------------------------------------------
ICON
                    Payment will be sent to the address to which the account is
                    registered or deposited in your brokerage account.
- --------------------------------------------------------------------------------
 Check-writing      You may order a supply of blank checks by requesting them on
 Option             the investment application or by contacting your Morgan
                    Stanley Dean Witter Financial Advisor.
                    ------------------------------------------------------------
ICON
                    Checks may be written in any amount not less than $500. You
                    must sign checks exactly as their shares are registered. If
                    the account is a joint account, the check may contain one
                    signature unless the joint owners have specified on an
                    investment application that all owners are required to sign
                    checks. Only accounts in which no share certificates have
                    been issued are eligible for the checkwriting privilege.
                    ------------------------------------------------------------
                    Payment of check proceeds normally will be made on the next
                    business day after we receive your check in proper form.
                    Shares purchased by check (including a certified or bank
                    cashier's check) are not normally available to cover
                    redemption checks until fifteen days after Morgan Stanley
                    Dean Witter Trust FSB receives the check used for
                    investment. A check will not be honored in an amount
                    exceeding the value of the account at the time the check is
                    presented for payment.
- --------------------------------------------------------------------------------
 By Letter          You may also sell your shares by writing a "letter of
                    instruction" that includes:
                    - your account number;
ICON
                    - the dollar amount or the number of shares you wish to
                      sell; and
                    - the signature of each owner as it appears on the account.
                    ------------------------------------------------------------
                    If you are requesting payment to anyone other than the
                    registered owner(s) or that payment be sent to any address
                    other than the address of the registered owner(s) or pre-
                    designated bank account, you will need a signature
                    guarantee. You can generally obtain a signature guarantee
                    from an eligible guarantor acceptable to Morgan Stanley Dean
                    Witter Trust FSB. (You should contact Morgan Stanley Dean
                    Witter Trust FSB at (800) 869-NEWS for a determination as to
                    whether a particular institution is an eligible guarantor.)
                    A notary public CANNOT provide a signature guarantee.
                    Additional documentation may be required for shares held by
                    a corporation, partnership, trustee or executor.
                    ------------------------------------------------------------
                    Mail the letter to Morgan Stanley Dean Witter Trust FSB at
                    P.O. Box 983, Jersey City, NJ 07303. If you hold share
                    certificates, you must return the certificates, along with
                    the letter and any required additional documentation.
                    ------------------------------------------------------------
                    A check will be mailed to the name(s) and address in which
                    the account is registered, or otherwise according to your
                    instructions.
                    ------------------------------------------------------------
</TABLE>
    
 
10
<PAGE>
   
(SIDEBAR)
SYSTEMATIC
WITHDRAWAL PLAN
THIS PLAN ALLOWS YOU TO WITHDRAW MONEY AUTOMATICALLY FROM YOUR FUND ACCOUNT AT
REGULAR INTERVALS. CONTACT YOUR MORGAN STANLEY DEAN WITTER FINANCIAL ADVISOR FOR
MORE DETAILS.
    
(END SIDEBAR)
 
   
<TABLE>
<CAPTION>
                                           OPTIONS        PROCEDURES
<C>                                   <S>                 <C>
- ----------------------------------------------------------------------------------------------------------------------
                                      Systematic          If your investment in all of the Morgan Stanley Dean Witter
                                      Withdrawal          Family of Funds has a total market value of at least
                                      Plan                $10,000, you may elect to withdraw amounts of $25 or more,
                                                          or in any whole percentage of a
                                                          Fund's balance (provided the amount is at least $25), on a
                                                          monthly, quarterly, semi-annual or annual basis, from any
                                                          Fund with a balance of at least $1,000. Each time you add a
ICON                                                      Fund to the plan, you must meet the plan requirements.
                                      ------------------
                                                          To sign up for the Systematic Withdrawal Plan, contact your
                                                          Morgan Stanley Dean Witter Financial Advisor or call (800)
                                                          869-NEWS. You may terminate or suspend your plan at any
                                                          time. Please remember that withdrawals from the plan are
                                                          sales of shares, not Fund "distributions," and ultimately
                                                          may exhaust your account balance. The Fund may terminate or
                                                          revise the plan at any time.
                                      ------------------
                                                          When you sell Fund shares through the Systematic Withdrawal
                                                          Plan, the shares may be subject to a contingent deferred
                                                          sales charge ("CDSC") if they were obtained in exchange for
                                                          shares subject to a CDSC of another Morgan Stanley Dean
                                                          Witter Fund. The CDSC, however, will be waived in an amount
                                                          up to 12% annually of the Fund's value, although Fund shares
                                                          with no CDSC will be sold first, followed by those with the
                                                          lowest CDSC. As such, the waiver benefit will be reduced by
                                                          the amount of your shares that are not subject to a CDSC.
                                                          See the PROSPECTUS of the Fund that charges the CDSC for
                                                          more details.
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
<TABLE>
<S>                 <C>
 By Telephone       You may also sell your shares by calling Morgan Stanley Dean
 or Wire            Witter Trust FSB at (800) 869-NEWS or by sending wire
                    instructions to Morgan Stanley Dean Witter Trust FSB at
 ICON               Telex No. 125076. A check will be mailed to the name(s) and
                    address in which the account is registered or, for amounts
                    of $1,000 or more, you may request a wire transfer to the
                    bank account designated in the application. If you hold
                    share certificates in your account, you are not eligible for
                    wire redemptions.
ICON
- --------------------------------------------------------------------------------
</TABLE>
 
   
           PAYMENT FOR SOLD SHARES. After we receive your complete instructions
           to sell as described above, a check will be mailed to you within
           seven days, although we will attempt to make payment within one
           business day. Payment may also be sent to your brokerage account.
    
 
   
Payment may be postponed or the right to sell your shares suspended under
unusual circumstances. If you request to sell shares that were recently
purchased by check, payment of the sale proceeds may be delayed for the minimum
time needed to verify that the check has been honored (not more than fifteen
days from the time we receive the check).
    
 
           INVOLUNTARY SALES. The Fund reserves the right, on sixty days'
           notice, to sell the shares of any shareholder whose shares, due to
           sales by the shareholder, have a value below $1,000. However, before
           the Fund sells your shares in this manner, we will notify you and
           allow you sixty days to make an additional investment in an amount
           that will increase the value of your account to at least the required
           amount before the sale is processed.
 
           MONEY MARKET FUND AUTOMATIC SALE PROCEDURES. If you maintain a
           brokerage account with Dean Witter Reynolds or another authorized
           dealer of Fund shares, you
 
                                                                              11
<PAGE>
           may elect to have your Fund shares automatically sold from your
           account to satisfy amounts you owe as a result of purchasing
           securities or other transactions in your brokerage account.
 
If you elect to participate by notifying Dean Witter Reynolds or another
authorized dealer of Fund shares, your brokerage account will be scanned each
business day prior to the close of business (4:00 p.m. Eastern time). After any
cash balances in the account are applied, a sufficient number of Fund shares may
be sold to satisfy any amounts you are obligated to pay to Dean Witter Reynolds
or another authorized dealer of fund shares. Sales will be effected on the
business day before the date you are obligated to make payment, and Dean Witter
Reynolds or another authorized dealer of Fund shares will receive the sale
proceeds on the following day.
 
   
           EASYINVEST -SM- - AUTOMATIC REDEMPTION. You may invest in shares of
           certain other Morgan Stanley Dean Witter Funds by subscribing to
           EASYINVEST -SM-, an automatic purchase plan that provides for the
           automatic investment of any amount from $100 to $5,000 in shares of
           the specified fund. Under EASYINVEST -SM-, you may direct that a
           sufficient number of shares of the Fund be automatically sold and the
           proceeds transferred to Morgan Stanley Dean Witter Trust FSB, on a
           semi-monthly, monthly or quarterly basis, for investment in shares of
           the specified fund. Sales of your Fund shares will be made on the
           business day preceding the investment date and Morgan Stanley Dean
           Witter Trust FSB will receive the proceeds for investment on the day
(SIDEBAR)  following the sale date.
TARGETED DIVIDENDS-SM-
YOU MAY SELECT TO HAVE YOUR FUND DISTRIBUTIONS AUTOMATICALLY INVESTED IN ANOTHER
MORGAN STANLEY DEAN WITTER FUND THAT YOU OWN. CONTACT YOUR MORGAN STANLEY DEAN
WITTER FINANCIAL ADVISOR FOR FURTHER INFORMATION ABOUT THIS SERVICE.
    
(END SIDEBAR)
 
           MARGIN ACCOUNTS. Certain restrictions may apply to Fund shares
           pledged in margin accounts with Dean Witter Reynolds or another
           authorized broker-dealer of Fund shares. If you hold Fund shares in
           this manner, please contact your Morgan Stanley Dean Witter Financial
           Advisor or other authorized financial representative for more
           details.
 
ICON  DISTRIBUTIONS
- --------------------------------------------------------------------------------
 
   
The Fund passes substantially all of its earnings along to its investors as
"distributions." The Fund earns interest from fixed-income investments. These
amounts are passed along to Fund shareholders as "income dividend
distributions." The Fund realizes capital gains whenever it sells securities for
a higher price than it paid for them. These amounts may be passed along as
"capital gain distributions;" the Investment Manager does not anticipate that
there will be significant capital gain distributions.
    
 
The Fund declares income dividends, payable on each day the New York Stock
Exchange is open for business, of all of its daily net income to shareholders of
record as of the close of business the preceding business day. Capital gains, if
any, are distributed periodically.
 
Distributions are reinvested automatically in additional shares of the Fund
(rounded to the last 1/100 of a share) and automatically credited to your
account unless you request in writing that distributions be paid in cash. If you
elect the cash option, the Fund will
 
12
<PAGE>
reinvest the additional shares and credit your account during the month, then
redeem the credited amount no later than the last business day of the month, and
mail a check to you no later than seven business days after the end of the
month. No interest will accrue on uncashed checks. If you wish to change how
your distributions are paid, your request should be received by the Fund's
transfer agent, Morgan Stanley Dean Witter Trust FSB, at least five business
days prior to the record date of the distributions.
 
ICON  TAX CONSEQUENCES
- --------------------------------------------------------------------------------
           As with any investment, you should consider how your Fund investment
           will be taxed. The tax information in this PROSPECTUS is provided as
           general information. You should consult your own tax professional
           about the tax consequences of an investment in the Fund.
 
Your income dividend distributions are exempt from federal and California state
income taxes -- to the extent they are derived from California municipal
obligations. Income derived from other portfolio securities may be subject to
federal, state and/or local income taxes.
 
Income derived from some municipal securities is subject to the federal
"alternative minimum tax." Certain tax-exempt securities whose proceeds are used
to finance private, for-profit organizations are subject to this special tax
system that ensures that individuals pay at least some federal taxes. Although
interest on these securities is generally exempt from federal income tax, some
taxpayers who have many tax deductions or exemptions nevertheless may have to
pay tax on the income.
 
If the Fund makes any capital gain distributions, those distributions will
normally be subject to federal and state income tax when they are paid, whether
you take them in cash or reinvest them in Fund shares. Any short-term capital
gain distributions are taxable to you as ordinary income. Any long-term capital
gain distributions are taxable to you as long-term capital gains, no matter how
long you have owned shares in the Fund.
 
Every January, you will be sent a statement (IRS Form 1099-DIV) showing the
distributions paid to you in the previous year. The statement provides full
information on your dividends and capital gains for tax purposes.
 
   
When you open your Fund account, you should provide your social security or tax
identification number on your investment application. By providing this
information, you will avoid being subject to a federal backup withholding tax of
31% on taxable distributions and sale proceeds. Any withheld amount would be
sent to the IRS as an advance tax payment.
    
 
                                                                              13
<PAGE>
FINANCIAL HIGHLIGHTS
 
The financial highlights table is intended to help you understand the Fund's
financial performance for the past 5 fiscal years of the Fund. Certain
information reflects financial results for a single Fund share. The total
returns in the table represent the rate an investor would have earned or lost on
an investment in the Fund (assuming reinvestment of all dividends and
distributions).
 
   
This information has been audited by PricewaterhouseCoopers LLP, whose report,
along with the Fund's financial statements, is included in the annual report,
which is available upon request.
    
 
   
<TABLE>
<CAPTION>
 YEARS ENDED DECEMBER 31                                       1998    1997    1996    1995    1994
<S>                                                           <C>     <C>     <C>     <C>     <C>
- ----------------------------------------------------------------------------------------------------
 
 SELECTED PER SHARE DATA
- ----------------------------------------------------------------------------------------------------
 Net asset value, beginning of period                         $1.00   $1.00   $1.00   $1.00   $1.00
- ----------------------------------------------------------------------------------------------------
 Net income from investments operations                       0.025   0.028   0.026   0.030   0.021
- ----------------------------------------------------------------------------------------------------
 Less dividends from net investment income                    (0.025) (0.028) (0.026) (0.030) (0.021)
- ----------------------------------------------------------------------------------------------------
 Net asset value, end of period                               $1.00   $1.00   $1.00   $1.00   $1.00
- ----------------------------------------------------------------------------------------------------
 
 TOTAL RETURN                                                 2.54%   2.83%   2.68%   3.04%   2.17%
- ----------------------------------------------------------------------------------------------------
 
 RATIOS TO AVERAGE NET ASSETS
- ----------------------------------------------------------------------------------------------------
 Expenses                                                     0.70%(1) 0.72%(1) 0.72%(1) 0.75%(1) 0.72%
- ----------------------------------------------------------------------------------------------------
 Net investment income                                        2.50%   2.79%   2.63%   3.00%   2.13%
- ----------------------------------------------------------------------------------------------------
 
 SUPPLEMENTAL DATA
- ----------------------------------------------------------------------------------------------------
 Net assets, end of period, in thousands                      $283,382 $287,001 $259,590 $254,376 $217,079
- ----------------------------------------------------------------------------------------------------
</TABLE>
    
 
   
(1) Does not reflect the effect of expense offset of 0.01%.
 
14
    
<PAGE>
<TABLE>
<S>                                                                                                           <C>  <C>  <C>  <C>
                                                                                                                4   4   0    --
                                                                                                                for office use only

                                                                                                                     [logo]

 
</TABLE>
 
                                                  [REMOVE APPLICATION CAREFULLY]
APPLICATION
 
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
Send to: Morgan Stanley Dean Witter Trust FSB (the "Transfer Agent"), 
P.O. Box 1040, Jersey City, NJ 07303

INSTRUCTIONS     For assistance in completing this application, 
                 telephone Morgan Stanley Dean Witter Trust FSB at 
                 (800) 869-NEWS (Toll-Free).

<TABLE>
<S>             <C>                                                          <C>
TO REGISTER
SHARES
(please print)  1.
                  ---------------------------------------------------------------------------------------------------
                   First Name                                                 Last Name


- -As joint
 tenants,
 use line 1 & 2   2.
                    ---------------------------------------------------------------------------------------------------
                    First Name                                                  Last Name
                    (Joint tenants with rights of survivorship unless otherwise specified)
 
                                                                     ---------------------------------------
                                                                           Social Security Number

- -As custodian
 for a minor,       
 use lines 1 & 3  3.
                    -------------------------------------------------------------------------------------------------
                                                               Minor's Name
 
                                                                     ---------------------------------------
                                                                           Minor's Social Security Number

                      Under the ___________________________ Uniform Gifts to Minors Act
                                State of Residence of Minor
- -In the name of a
 corporation,       4.
 trust,               ---------------------------------------------------------------------------------------------------
 partnership
 or other                                    Name of Corporation, Trust (including trustee name(s)) or Other Organization
 institutional
 investors,
 use
 line 4              ---------------------------------------------------------------------------------------------------


                                                                     ---------------------------------------
                                                                           Tax Identification Number


                            If Trust, Date of Trust Instrument: _____________________________

ADDRESS              ---------------------------------------------------------------------------------------------------

                     ---------------------------------------------------------------------------------------------------
                                  City                        State                           Zip Code
TO PURCHASE
SHARES:
Minimum Initial      / / CHECK (enclosed) $________________ (Make Payable to Morgan Stanley Dean Witter
Investment:                                                                  California Tax-Free Daily Income Trust)
$5,000               / / WIRE*  On_______________           MF* _________________________________
                                       (Date)                  (Control number, this transaction)
 

                        --------------------------------------------------------------------------------------------------
                        Name of Bank                                                                        Branch

                        --------------------------------------------------------------------------------------------------
                        Address

                        --------------------------------------------------------------------------------------------------
                        Telephone Number

                        * For an initial investment made by wiring funds, obtain a control number by calling: (800) 869-NEWS (Toll
                          Free).
                          Your bank should wire to:
                        Bank of New York for credit to account of Morgan Stanley Dean Witter Trust FSB
                        Account Number: 8900188413

                        Re: Morgan Stanley Dean Witter California Tax-Free Daily Income Trust

                        Account Of: _____________________________________________

                                    (Investor's Account as Registered at the Transfer Agent)

                        Control or Account Number:______________________________________
                                                   (Assigned by Telephone)


                                                         OPTIONAL SERVICES

 
                     NOTE: If you are a current shareholder of Morgan Stanley Dean Witter California Tax-Free Daily 
                     Income Trust, please indicate your fund account number here.
                        [4]   [4]   [0]  -  
                                            ------------------------------
DIVIDENDS            All dividends will be reinvested daily in additional shares, unless the following option is selected:

                     / / Pay income dividends by check at the end of each month.

WRITE YOUR OWN       / / Send an initial supply of checks.
CHECK                FOR JOINT ACCOUNTS:
                     / / CHECK THIS BOX IF ALL OWNERS ARE REQUIRED TO SIGN CHECKS.
</TABLE>

<PAGE>

<TABLE>
<S>                         <C>                                                <C>
PAYMENT TO                  /  /    Morgan Stanley Dean Witter Trust FSB is hereby authorized  to honor telephonic or other
PREDESIGNATED                       instructions, without signature guarantee,  from any  person for  the redemption of any
BANK ACCOUNT                        or all shares of Dean  Witter California Tax-Free  Daily  Income Trust held in my (our)
                                    account provided that proceeds  are  transmitted  only  to  the following bank account.
                                    (Absent  its  own negligence, neither Morgan Stanley Dean  Witter  California  Tax-Free
                                    Daily  Income  Trust  nor  Morgan Stanley Dean Witter Trust FSB (the  "Transfer Agent")
                                    shall  be liable for any redemption caused by unauthorized instruction(s)):
Bank Account must be in
same name as shares are
registered                  --------------------------------------------------------------   ----------------------------
                            NAME & BANK ACCOUNT NUMBER                                        BANK'S ROUTING TRASMIT CODE
                                                                                                     (ASK YOUR BANK)
Minimum Amount:
$1,000                      ---------------------------------------------------------------
                            NAME OF BANK

                            ---------------------------------------------------------------
                            ADDRESS OF BANK

                            (       )
                            ---------------------------------------------------------------
                            TELEPHONE NUMBER OF BANK

                                                             SIGNATURE AUTHORIZATION

FOR ALL ACCOUNTS            NOTE: RETAIN A COPY OF THIS DOCUMENT FOR YOUR RECORDS. ANY MODIFICATION OF THE INFORMATION
                            BELOW  WILL REQUIRE AN AMENDMENT TO  THIS FORM. THIS DOCUMENT IS  IN FULL FORCE AND EFFECT
                            UNTIL ANOTHER DULY EXECUTED FORM IS RECEIVED BY THE TRANSFER AGENT.

                            The "Transfer Agent"  is hereby authorized  to act as  agent for the  registered owner  of
                            shares  of Morgan Stanley Dean Witter  California Tax-Free Daily Income Trust (the "Fund")
                            in effecting redemptions of shares and is authorized to recognize the  signature(s)  below
                            in payment of funds resulting from such redemptions on behalf of the  registered owners of
                            such shares. The Transfer Agent  shall be liable  only for its  own negligence and not for
                            default or negligence  of its correspondents, or for losses in  transit.  The  Fund  shall
                            not be liable for any default or negligence of the Transfer Agent.

                            I (we) certify to my (our) legal capacity, or the capacity of the investor named above, to
                            invest in and redeem shares of, and I (we) acknowledge receipt of a current prospectus of,
                            Morgan Stanley Dean Witter California Tax-Free Daily Income Trust and (we) further certify
                            my (our) authority to sign and act for and on behalf of the investor.

                            Under penalties of perjury, I certify (1) that the number shown on this form is my correct
                            taxpayer  identification number and (2) that I am not subject to backup withholding either
                            because I have not been notified that I am subject to backup withholding as a result of  a
                            failure  to report all interest or dividends, or the Internal Revenue Service has notified
                            me that I am no longer subject to  backup withholding. (Note: You must cross out item  (2)
                            above  if  you  have  been notified  by  IRS  that  you are  currently  subject  to backup
                            withholding because of underreporting interest or dividends on your tax return.)

                            For Individual, Joint and Custodial Accounts for Minors, Check Applicable Box:
                            / / I am a United States Citizen.                     / / I am not a United States Citizen.

                                                  SIGNATURE(S) (IF JOINT TENANTS, ALL MUST SIGN)

Name(s) must be
signed exactly the
same as shown on
lines 1 to 4 on the
reverse side of this
application
                            SIGNATURE MUST BE KEPT WITHIN ABOVE AREA           SIGNATURE MUST BE KEPT WITHIN ABOVE AREA

                            SIGNATURE MUST BE KEPT WITHIN ABOVE AREA           SIGNATURE MUST BE KEPT WITHIN ABOVE AREA

                      SIGNED THIS ___________________  DAY OF ____________________, 19__.

                                         FOR CORPORATIONS, TRUSTS, PARTNERSHIPS AND OTHER ORGANIZATIONS

                      The following  named  persons  are  currently  officers/trustees/general  partners/other  authorized
                      signatories  of the Registered  Owner, and any __* of them ("Authorized Person(s)") is/are currently
                      authorized under  the applicable  governing document  to  act with  full power  to sell,  assign  or
                      transfer  securities  of the  the Fund  for  the Registered  Owner and  to  execute and  deliver any
                      instrument necessary to effectuate the authority hereby conferred:

                                         NAME/TITLE                                          SIGNATURE
In addition,
complete
Section A or B
below.
                            SIGNATURE MUST BE KEPT WITHIN ABOVE AREA           SIGNATURE MUST BE KEPT WITHIN ABOVE AREA

                            SIGNATURE MUST BE KEPT WITHIN ABOVE AREA           SIGNATURE MUST BE KEPT WITHIN ABOVE AREA

                            SIGNATURE MUST BE KEPT WITHIN ABOVE AREA           SIGNATURE MUST BE KEPT WITHIN ABOVE AREA

                      SIGNED THIS ___________________  DAY OF ____________________, 19__.

                      The Transfer Agent may, without inquiry, act  only upon the instruction of ANY PERSON(S)  purporting
                      to  be (an) Authorized  Person(s) as named in  the Certification Form last  received by the Transfer
                      Agent. The Transfer Agent and the Fund shall not be liable for any claims, expenses (including legal
                      fees) or losses  resulting from  the Transfer  Agent having  acted upon  any instruction  reasonably
                      believed genuine.

                      ----------------------------------------------------------------------------------------------------
                      *INSERT  A NUMBER. UNLESS OTHERWISE INDICATED, THE TRANSFER  AGENT MAY HONOR INSTRUCTIONS OF ANY ONE
                       OF THE PERSONS NAMED ABOVE.

SECTION (A)           NOTE: EITHER A SIGNATURE GUARANTEE OR CORPORATE SEAL IS REQUIRED.
CORPORATIONS AND
INCORPORATED
ASSOCIATIONS ONLY.    I, ______________________, Secretary of the Registered Owner, do hereby  certify that at a meeting
                      on _____________________ at which a  quorum was  present throughout, the Board of Directors of the
                      corporation/the officers of the association duly adopted a resolution, which is in full  force and
SIGN ABOVE AND COM-   effect and in accordance with the Registered Owner's charter and  by-laws,  which  resolution  did
PLETE THIS            the  following:  (1)  empowered   the  above-named   Authorized  Person(s)  to  effect  securities
SECTION               transactions for  the Registered Owner on  the terms described above; (2) authorized the Secretary
                      to certify, from time to time, the names and  titles of  the officers of the Registered  Owner and
                      to notify the  Transfer Agent when changes in office occur;  and  (3) authorized the  Secretary to
                      certify that such  a resolution has been duly  adopted and  will  remain in  full force and effect
                      until the  Transfer Agent  receives a  duly execute amendment to the Certification Form.
SIGNATURE
GUARANTEE**           Witness my hand on behalf of the corporation/association this__________ day of ___________ , 19__.
(or Corporate Seal)

                                                 ------------------------------------------------------------------------
                                                                                Secretary**

                      The undersigned officer (other than the Secretary) hereby certifies that the foregoing  instrument
                      has been signed by the Secretary of the corporation/association.

SIGNATURE
GUARANTEE**
(or Corporate Seal)
                                                 ------------------------------------------------------------------------
                                                    Certifying Officer of the Corporation or Incorporated Association**

SECTION (B) ALL       NOTE: A SIGNATURE GUARANTEE IS REQUIRED.
OTHER
INSTITUTIONAL
INVESTORS                          ---------------------------------------------------------------------------------------
                                                                            Certifying
SIGNATURE                                                    Trustee(s)/General Partner(s)/Other(s)**
GUARANTEE**

SIGN ABOVE AND COM-                ---------------------------------------------------------------------------------------
PLETE THIS SECTION                                                          Certifying
                                                             Trustee(s)/General Partner(s)/Other(s)**

                      ----------------------------------------------------------------------------------------------------
                      **SIGNATURE(S) MUST BE GUARANTEED BY AN ELIBIGLE GUARANTOR

DEALER                Above signature(s) guaranteed. Prospectus has been delivered by undersigned to above-named applicant(s).
(if any)
Completion by 
dealer only
                      ------------------------------------------   ------------------------------------------------------
                      Firm Name                                    Office Number-Account Number at Dealer-F/A Number

                      ------------------------------------------   ------------------------------------------------------
                      Address                                      Financial Advisor's Last Name

                      ------------------------------------------   ------------------------------------------------------
                      City, State, Zip Code                        Branch Office

- -Registered Trademark- 1999 Morgan Stanley Dean Witter Distributors Inc.
</TABLE>

<PAGE>
MORGAN STANLEY DEAN WITTER
FAMILY OF FUNDS
 
                           The Morgan Stanley Dean Witter Family of Funds offers
                           investors a wide range of investment choices. Come on
                           in and meet the family!
- --------------------------------------------------------------------------------
 GROWTH FUNDS
- ---------------------------------
 
GROWTH FUNDS
Aggressive Equity Fund
   
American Value Fund
    
Capital Growth Securities
Developing Growth Securities
Equity Fund
Growth Fund
Market Leader Trust
Mid-Cap Growth Fund
Special Value Fund
   
Value Fund
    
 
   
THEME FUNDS
    
   
Financial Services Trust
    
   
Health Sciences Trust
    
Information Fund
Natural Resource Development Securities
Precious Metals and Minerals Trust
 
   
GLOBAL/INTERNATIONAL FUNDS
    
Competitive Edge Fund - "Best Ideas" Portfolio
European Growth Fund
Fund of Funds - International Portfolio
Global Dividend Growth Securities
   
International SmallCap Fund
    
Japan Fund
Pacific Growth Fund
- --------------------------------------------------------------------------------
 GROWTH AND INCOME FUNDS
- ---------------------------------
Balanced Growth Fund
Balanced Income Fund
Convertible Securities Trust
Dividend Growth Securities
Fund of Funds - Domestic Portfolio
   
Income Builder Fund
    
   
Mid-Cap Dividend Growth Securities
    
   
S&P 500 Index Fund
    
   
S&P 500 Select Fund
    
   
Strategist Fund
    
   
Value-Added Market Series/Equity Portfolio
    
 
   
THEME FUNDS
    
   
Global Utilities Fund
    
   
Real Estate Fund
    
   
Utilities Fund
    
- --------------------------------------------------------------------------------
 INCOME FUNDS
- ---------------------------------
 
GOVERNMENT INCOME FUNDS
Federal Securities Trust
Short-Term U.S. Treasury Trust
U.S. Government Securities Trust
 
DIVERSIFIED INCOME FUNDS
Diversified Income Trust
 
CORPORATE INCOME FUNDS
High Yield Securities
Intermediate Income Securities
Short-Term Bond Fund (NL)
 
GLOBAL INCOME FUNDS
World Wide Income Trust
 
TAX-FREE INCOME FUNDS
California Tax-Free Income Fund
Hawaii Municipal Trust (FSC)
Limited Term Municipal Trust (NL)
Multi-State Municipal Series Trust (FSC)
New York Tax-Free Income Fund
Tax-Exempt Securities Trust
- --------------------------------------------------------------------------------
 MONEY MARKET FUNDS
- ---------------------------------
 
TAXABLE MONEY MARKET FUNDS
Liquid Asset Fund (MM)
U.S. Government Money Market Trust (MM)
 
TAX-FREE MONEY MARKET FUNDS
California Tax-Free Daily Income Trust (MM)
New York Municipal Money Market Trust (MM)
Tax-Free Daily Income Trust (MM)
 
There may be Funds created after this PROSPECTUS was published. Please consult
the inside front cover of a new Fund's PROSPECTUS for its designation, e.g.,
Multi-Class Fund or Money Market Fund.
 
   
Unless otherwise noted, each listed Morgan Stanley Dean Witter Fund, except for
Short-Term U.S. Treasury Trust, is a Multi-Class Fund, which is a mutual fund
offering multiple Classes of shares. The other types of funds are: NL - No-Load
(Mutual) Fund; MM - Money Market Fund; FSC - A mutual fund sold with a front-end
sales charge and a distribution (12b-1) fee.
    
<PAGE>
   
                                                      PROSPECTUS - APRIL 5, 1999
    
 
   
Additional information about the Fund's investments is available in the Fund's
ANNUAL AND SEMI-ANNUAL REPORTS TO SHAREHOLDERS. In the Fund's ANNUAL REPORT, you
will find a discussion of the market conditions and investment strategies that
significantly affected the Fund's performance during its last fiscal year. The
Fund's STATEMENT OF ADDITIONAL INFORMATION also provides additional information
about the Fund. The STATEMENT OF ADDITIONAL INFORMATION is incorporated herein
by reference (legally is part of this PROSPECTUS). For a free copy of any of
these documents, to request other information about the Fund, or to make
shareholder inquiries, please call:
    
 
   
                                 (800) 869-NEWS
    
 
You also may obtain information about the Fund by calling your Morgan Stanley
Dean Witter Financial Advisor or by visiting our Internet site at:
 
                            WWW.DEANWITTER.COM/FUNDS
 
Information about the Fund (including the STATEMENT OF ADDITIONAL INFORMATION)
can be viewed and copied at the Securities and Exchange Commission's Public
Reference Room in Washington, DC. Information about the Reference Room's
operations may be obtained by calling the SEC at (800) SEC-0330. Reports and
other information about the Fund are available on the SEC's Internet site at
www.sec.gov, and copies of this information may be obtained, upon payment of a
duplicating fee, by writing the Public Reference Section of the SEC, Washington,
DC 20549-6009.
Morgan Stanley Dean Witter
                                                             CALIFORNIA TAX-FREE
                                                              DAILY INCOME TRUST
 
                               [BACK COVER PHOTO]
 
                                                  A MONEY MARKET FUND THAT SEEKS
                                                   TO PROVIDE AS HIGH A LEVEL OF
                                                DAILY INCOME EXEMPT FROM FEDERAL
                                                 AND CALIFORNIA INCOME TAX AS IS
                                                    CONSISTENT WITH STABILITY OF
                                                         PRINCIPAL AND LIQUIDITY
 
 TICKER SYMBOL:   DSCXX
 
   
(INVESTMENT COMPANY ACT FILE NO. 811-5554.)
    
<PAGE>
 
   
STATEMENT OF ADDITIONAL INFORMATION                                 MORGAN
APRIL 5, 1999                                                       STANLEY
                                                                    DEAN WITTER
                                                                    CALIFORNIA
                                                                    TAX-FREE
                                                                    DAILY INCOME
                                                                    TRUST
 
- --------------------------------------------------------------------------------
    
 
   
    This STATEMENT OF ADDITIONAL INFORMATION is not a PROSPECTUS. The PROSPECTUS
(dated April 5, 1999) for the Morgan Stanley Dean Witter California Tax-Free
Daily Income Trust may be obtained without charge from the Fund at its address
or telephone number listed below or from Dean Witter Reynolds at any of its
branch offices.
    
 
Morgan Stanley Dean Witter
California Tax-Free Daily Income Trust
Two World Trade Center
New York, New York 10048
(800) 869-NEWS
<PAGE>
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                                                                      <C>
I. Fund History........................................................................          4
 
II. Description of the Fund and Its Investments and Risks..............................          4
 
  A. Classification....................................................................          4
 
  B. Investment Strategies and Risks...................................................          4
 
  C. Investment Objective/Policies/Investment Restrictions.............................         11
 
III. Management of the Fund............................................................         13
 
  A. Board of Trustees.................................................................         13
 
  B. Management Information............................................................         13
 
  C. Compensation......................................................................         18
 
IV. Control Persons and Principal Holders of Securities................................         20
 
V. Investment Management and Other Services............................................         20
 
  A. Investment Manager................................................................         20
 
  B. Principal Underwriter.............................................................         21
 
  C. Services Provided by the Investment Manager and Fund Expenses Paid by Third
   Parties.............................................................................         21
 
  D. Rule 12b-1 Plan...................................................................         22
 
  E. Other Service Providers...........................................................         24
 
VI. Brokerage Allocation and Other Practices...........................................         24
 
  A. Brokerage Transactions............................................................         24
 
  B. Commissions.......................................................................         25
 
  C. Brokerage Selection...............................................................         25
 
  D. Directed Brokerage................................................................         26
 
  E. Regular Broker-Dealers............................................................         26
 
VII. Capital Stock and Other Securities................................................         26
 
VIII. Purchase, Redemption and Pricing of Shares.......................................         27
 
  A. Purchase/Redemptions of Shares....................................................         27
 
  B. Offering Price....................................................................         27
 
IX. Taxation of the Fund and Shareholders..............................................         29
 
X. Underwriters........................................................................         32
 
XI. Calculation of Performance Data....................................................         32
 
XII. Financial Statements..............................................................         33
</TABLE>
    
 
                                       2
<PAGE>
GLOSSARY OF SELECTED DEFINED TERMS
- --------------------------------------------------------------------------------
 
    The terms defined in this glossary are frequently used in this STATEMENT OF
ADDITIONAL INFORMATION (other terms used occasionally are defined in the text of
the document).
 
"CUSTODIAN"--The Bank of New York is the Custodian of the Fund's assets.
 
"DEAN WITTER REYNOLDS"--Dean Witter Reynolds Inc., a wholly-owned broker-dealer
subsidiary of MSDW.
 
"DISTRIBUTOR"--Morgan Stanley Dean Witter Distributors Inc., a wholly-owned
broker-dealer subsidiary of MSDW.
 
"FINANCIAL ADVISORS"--Morgan Stanley Dean Witter authorized financial services
representatives.
 
"FUND"--Morgan Stanley Dean Witter California Tax-Free Daily Income Trust, a
registered no-load open-end investment company.
 
"INVESTMENT MANAGER"--Morgan Stanley Dean Witter Advisors Inc., a wholly-owned
investment advisor subsidiary of MSDW.
 
"INDEPENDENT TRUSTEES"--Trustees who are not "interested persons" (as defined by
the Investment Company Act) of the Fund.
 
"MORGAN STANLEY & CO."--Morgan Stanley & Co. Incorporated, a wholly-owned
broker-dealer subsidiary of MSDW.
 
"MORGAN STANLEY DEAN WITTER FUNDS"--Registered investment companies (i) for
which the Investment Manager serves as the investment advisor and (ii) that hold
themselves out to investors as related companies for investment and investor
services.
 
"MSDW"--Morgan Stanley Dean Witter & Co., a preeminent global financial services
firm.
 
"MSDW SERVICES COMPANY"--Morgan Stanley Dean Witter Services Company Inc., a
wholly-owned fund services subsidiary of the Investment Manager.
 
"TRANSFER AGENT"--Morgan Stanley Dean Witter Trust FSB, a wholly-owned transfer
agent subsidiary of MSDW.
 
"TRUSTEES"--The Board of Trustees of the Fund.
 
                                       3
<PAGE>
I. FUND HISTORY
- --------------------------------------------------------------------------------
 
    The Fund was organized as a Massachusetts business trust, under a
Declaration of Trust, on April 25, 1988, with the name Dean Witter/Sears
California Tax-Free Daily Income Trust. On February 19, 1993, the Fund's name
was changed to Dean Witter California Tax-Free Daily Income Trust. Effective
June 22, 1998, the Fund's name was changed to Morgan Stanley Dean Witter
California Tax-Free Daily Income Trust.
 
II. DESCRIPTION OF THE FUND AND ITS INVESTMENTS AND RISKS
- --------------------------------------------------------------------------------
 
A. CLASSIFICATION
 
    The Fund is an open-end, diversified management investment company whose
investment objective is to provide as high a level of daily income exempt from
federal and California income tax as is consistent with stability of principal
and liquidity.
 
B. INVESTMENT STRATEGIES AND RISKS
 
    The following discussion of the Fund's investment strategies and risks
should be read with the sections of the Fund's PROSPECTUS titled "Principal
Investment Strategies" and "Principal Risks."
 
    LEASE OBLIGATIONS.  Included within the revenue bonds category in which the
Fund may invest are participations in lease obligations or installment purchase
contracts (collectively called "lease obligations") of municipalities. State and
local governments 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.
 
    TAXABLE SECURITIES.  The Fund 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 Fund 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.
 
    The types of taxable money market instruments in which the Fund 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.
 
    VARIABLE RATE AND FLOATING RATE OBLIGATIONS.  The Fund 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 a floating rate obligation, 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 Fund may
 
                                       4
<PAGE>
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
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 Fund to maintain a stable net
asset value per share and to sell obligations prior to maturity at a price that
is approximately the full principal amount of the obligations. The principal
benefit to the Fund of purchasing obligations with a demand feature is that
liquidity, and the ability of the Fund 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 Fund 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 Fund's investment quality requirements.
 
    INDUSTRIAL DEVELOPMENT AND POLLUTION CONTROL BONDS.  The Fund 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 Fund 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.
 
    PUT OPTIONS.  The Fund 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 Fund pays for
securities with puts may be higher than the price which otherwise would be paid
for the securities. The primary purpose of this practice is to permit the Fund
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 Fund'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 Fund 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 Fund, 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
Fund's portfolio.
 
    The Fund 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 Fund'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 Fund's policy is to
enter into put transactions only with municipal securities dealers who are
approved by the Trustees. Each dealer will be approved on its own merits and it
is the Fund'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 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
 
                                       5
<PAGE>
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 Fund is unable to predict
whether all or any portion of any loss sustained could be subsequently recovered
from such dealer.
 
    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.
 
    REPURCHASE AGREEMENTS.  The Fund may invest in repurchase agreements. When
cash may be available for only a few days, it may be invested by the Fund in
repurchase agreements until such time as it may otherwise be invested or used
for payments of obligations of the Fund. These agreements, which may be viewed
as a type of secured lending by the Fund, typically involve the acquisition by
the Fund of debt securities from a selling financial institution such as a bank,
savings and loan association or broker-dealer. The agreement provides that the
Fund will sell back to the institution, and that the institution will
repurchase, the underlying security serving as collateral at a specified price
and at a fixed time in the future, usually not more than seven days from the
date of purchase. The Fund will accrue interest from the institution until the
time when the repurchase is to occur. Although this date is deemed by the Fund
to be the maturity date of a repurchase agreement, the maturities of securities
subject to repurchase agreements are not subject to any limits.
 
    While repurchase agreements involve certain risks not associated with direct
investments in debt securities, the Fund 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 resale price which consists of the acquisition price paid to the seller
of the securities plus the accrued resale premium which is defined as the amount
specified in the repurchase agreement or the daily amortization of the
difference between the acquisition price and the resale price specified in the
repurchase agreement. Such collateral will consist entirely of securities that
are direct obligations of, or that are fully guaranteed as to principal and
interest by, the United States or any agency thereof, and/or certificates of
deposit, bankers' acceptances which are eligible for acceptance by a Federal
Reserve Bank, and, if the seller is a bank, mortgage related securities (as such
term is defined in section 3(a)(41) of the Securities Exchange Act of 1934 that,
at the time the repurchase agreement is entered into, are rated in the highest
rating category by the Requisite NRSROs (as defined under Rule 2a-7 of the
Investment Company Act of 1940) . Additionally, Upon an Event of Insolvency (as
defined under Rule 2a-7) with respect to the seller, the collateral must qualify
the repurchase agreement for preferential treatment under a provision of
applicable insolvency law providing an exclusion from any automatic stay of
creditors' rights against the seller . In the event of a default or bankruptcy
by a selling financial institution, the Fund will seek to liquidate such
collateral. However, the exercise of the Fund'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 Fund could suffer a loss. It is the current
policy of the Fund 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 Fund, amount to more than 10% of its total assets. The Fund's
investments in repurchase agreements may at times be substantial when, in the
view of the Fund's investment manager, liquidity or other considerations
warrant.
 
    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES.  From time to time the Fund may
purchase tax-exempt securities on a when-issued or delayed delivery basis. When
these transactions are negotiated, the price is fixed at the time of the
commitment, but delivery and payment can take place a month or more after the
date of commitment. While the Fund will only purchase securities on a
when-issued, delayed delivery with the intention of acquiring the securities,
the Fund 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 or dividends accrue to the purchaser prior to the settlement
date.
 
                                       6
<PAGE>
    At the time the Fund makes the commitment to purchase or sell securities on
a when-issued, delayed delivery, it will record the transaction and thereafter
reflect the value, each day, of such security purchased, or if a sale, the
proceeds to be received, in determining its net asset value. At the time of
delivery of the securities, their value may be more or less than the purchase or
sale price. An increase in the percentage of the Fund's assets committed to the
purchase of securities on a when-issued, delayed delivery may increase the
volatility of its net asset value. The Fund will also establish a segregated
account on the Fund's books in which it will continually maintain cash or cash
equivalents or other liquid portfolio securities equal in value to commitments
to purchase securities on a when-issued or delayed delivery basis.
 
    YEAR 2000.  The investment management services provided to the Fund by the
Investment Manager and the services provided to shareholders by the Distributor
and the Transfer Agent depend on the smooth functioning of their computer
systems. Many computer software systems in use today cannot recognize the year
2000, but revert to 1900 or some other date, due to the manner in which dates
were encoded and calculated. That failure could have a negative impact on the
handling of securities trades, pricing and account services. The Investment
Manager, the Distributor and the Transfer Agent have been actively working on
necessary changes to their own computer systems to prepare for the year 2000 and
expect that their systems will be adapted before that date, but there can be no
assurance that they will be successful, or that interaction with other
non-complying computer systems will not impair their services at that time.
 
    In addition, it is possible that the markets for securities in which the
Fund invests may be detrimentally affected by computer failures throughout the
financial services industry beginning January 1, 2000. Improperly functioning
trading systems may result in settlement problems and liquidity issues. In
addition, corporate and governmental data processing errors may result in
production problems for individual companies and overall economic uncertainties.
Earnings of individual issuers will be affected by remediation costs, which may
be substantial and may be reported inconsistently in U.S. and foreign financial
statements. Accordingly, the Fund's investments may be adversely affected.
 
    THE STATE OF CALIFORNIA--SPECIAL INVESTMENT CONSIDERATIONS.  The following
describes certain risks with respect to municipal obligations of California
issuers in which the Fund may invest. This summarized information is based on
information drawn from official statements and prospectuses relating to
securities offerings of the State of California and other public documents
available as of the date of this Statement of Additional Information.
 
    The Fund will be affected by any political, economic or regulatory
developments affecting the ability of California issuers to pay interest or
repay principal. Provisions of 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. Future California political and economic developments,
constitutional amendments, legislative measures, executive orders,
administrative regulations, litigation and voter initiatives could have an
adverse effect on the debt obligations of California issuers.
 
    Certain debt obligations held by the Fund may be obligations of issuers
which rely in whole or in substantial part on California state revenues for the
continuance of their operations and payment of their obligations. Whether and to
what extent the California Legislature will continue to appropriate a portion of
the State's General Fund to counties, cities and their various entities, is not
entirely certain. To the extent local entities do not receive money from the
State to pay for their operations and services, their ability to pay debt
service on obligations held by the Fund may be impaired.
 
    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
 
                                       7
<PAGE>
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 1978-1979 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 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 (viii)
permits these provisions to be amended exclusively by the voters of the State of
California.
 
    In September 1995, the California Supreme Court upheld the constitutionality
of Proposition 62, creating uncertainty as to the legality of certain local
taxes enacted by non-charter cities in California without voter approval. It is
not possible to predict the impact of the decision.
 
    In November 1996, California voters approved Proposition 218. The initiative
applied the provisions of Proposition 62 to all entities, including charter
cities. It requires that all taxes for general purposes obtain a simple majority
popular vote and that taxes for special purposes obtain a two-thirds majority
vote. Prior to the effectiveness of Proposition 218, charter cities could levy
certain taxes such as transient occupancy taxes and utility user's taxes without
a popular vote. Proposition 218 will also limit the
 
                                       8
<PAGE>
authority of local governments to impose property-related assessments, fees and
charges, requiring that such assessments be limited to the special benefit
conferred and prohibiting their use for general governmental services.
Proposition 218 also allows voters to use their initiative power to reduce or
repeal previously-authorized taxes, assessments, fees and charges.
 
    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 (i) 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.
 
    Certain tax-exempt securities in which the Fund may invest may be
obligations payable solely from the revenues of specific institutions, or may be
secured by specific properties, which are subject to provisions of California
law which could adversely affect the holders of such obligations. For example,
the revenues of California health care institutions may be subject to state
laws, and California law limits the remedies of a creditor secured by a mortgage
or deed of trust on real property.
 
    California is the most populous state in the nation with a total population
estimated at 32.9 million. The State now comprises 12.3% of the nation's
population and 12.5% 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,
entertainment, real estate, and financial services. After experiencing strong
growth throughout much of the 1980s, from 1990-1993 the State suffered through a
severe recession, the worst since the 1930's, heavily influenced by large
cutbacks in defense/aerospace industries and military base closures and a major
drop in real estate construction. California's economy has been recovering and
growing steadily stronger since the start of 1994, to the point where the
State's economic growth is outpacing the rest of the nation. The unemployment
rate, while still higher than the national average, fell to an average of 5.9%
in 1998, compared to over 10% at the worst of the recession. California's
economic recovery from the recession is continuing at a strong pace. Recent
economic reports indicate that, while the rate of economic growth in California
is expected to moderate over the next year, the increases in employment and
income may exceed those of the nation as a whole. The unsettled financial
situation occurring in certain Asian economies, and its spillover effect
elsewhere, may adversely affect the State's export-related industries and,
therefore, the State's rate of economic growth.
 
    The Governor signed the 1998-99 Budget Act on August 21, 1998. The 1998-99
Budget Act is based on projected General Fund revenues and transfers of $57.0
billion (after giving effect to various tax reductions enacted in 1997 and
1998), a 4.2% increase from the revised 1997-98 figures. Special Fund revenues
were estimated at $14.3 billion. The revenue projections were based on the
Governor's May Revision to the 1998-99 Budget and may be overstated in light of
the possible effect on California's economic growth of worsening economic
problems in various international markets.
 
    The Budget Act provides authority for expenditures of $57.3 billion from the
General Fund (a 7.3% increase from 1997-98), $14.7 billion from Special Funds,
and $3.4 billion from bond funds. The Budget
 
                                       9
<PAGE>
Act projects a balance in the SFEU at June 30, 1999 of $1.255 billion, a little
more than 2% of General Fund revenues. The Budget Act assumes the State will
carry out its normal intra-year cash flow borrowing in the amount of $1.7
billion of revenue anticipation notes issued in October, 1998.
 
    The most significant feature of the 1998-99 budget was agreement on a total
of $1.4 billion of tax cuts. The central element is a bill which provides for a
phased-in reduction of the Vehicle License Fee (VLF). Since the VLF is currently
transferred to cities and counties, the bill provides for the General Fund to
replace the lost revenues. Starting on January 1, 1999, the VLF will be reduced
by 25%, at a cost to the General Fund of approximately $500 million in the
1998-99 Fiscal Year and about $1 billion annually thereafter.
 
    The Governor's proposed budget for fiscal year 1999-2000 proposes total
State spending of $76.2 billion (excluding the expenditure of federal funds and
selected bond funds), which is up 4.1% from the 1998-1999 budget. This total
includes $60.5 billion in General Fund spending (a 3.8% increase) and $15.7 in
special funds spending. The Governor's proposed budget anticipates a $415
million reserve by the close of the fiscal year. The proposed budget addresses
an anticipated funding shortfall of $2.3 billion (which includes funds to
rebuild the reserve) through a combination of new state and federal resources,
the rescheduling of certain expenditures, under budgeting certain expenditures,
spending cutbacks, and savings assumptions.
 
    As of November 1, 1998, the State had over $18.6 billion aggregate amount of
its general obligation bonds outstanding. General obligation bond authorizations
in an aggregate amount of approximately $5.7 billion remained unissued as of
November 1, 1998. At the November 3, 1998 election voters approved a bond
measure totaling $9.2 billion for public school construction and renovation, and
for higher education facilities. The State also builds and acquires capital
facilities through the use of lease purchase borrowing. As of November 1, 1998,
the State had approximately $6.5 billion of outstanding Lease-Purchase Debt.
 
    In addition to the general obligation bonds, State agencies and authorities
had approximately $24.6 billion aggregate principal amount of revenue bonds and
notes outstanding as of September 30, 1998. Revenue bonds represent both
obligations payable from State revenue-producing enterprises and projects, which
are not payable from the General Fund, and conduit obligations payable only from
revenues paid by private users of facilities financed by such revenue bonds.
Such enterprises and projects include transportation projects, various public
works and exposition projects, educational facilities (including the California
State University and University of California systems), housing, health
facilities, and pollution control facilities.
 
    Because of the State of California's budget problems, the State's General
Obligation bonds were downgraded in July 1994 to A1 from Aa by Moody's, to A
from A+ by S&P, and to A from AA by Fitch. Moody's, Fitch and S&P expressed
uncertainty in the State's ability to balance its budget by 1996. However, in
1996, citing California's improving economy and budget situation, both Fitch and
S&P raised their ratings from A to A+. In October, 1997, Fitch raised its rating
from A+ to AA- referring to the State's fundamental strengths, the extent of its
economic recovery and the return of financial stability. In October 1998,
Moody's raised its rating from A1 to Aa3 citing the State's continuing economic
recovery and a number of actions taken to improve the State's credit condition,
including the rebuilding of cash and budget reserves.
 
    The State is a party to numerous legal proceedings, many of which normally
occur in governmental operations and which, if decided against the State, might
require the State to make significant future expenditures or impair future
revenue sources.
 
    YEAR 2000.  In October 1997 the Governor issued Executive Order W-163-97
stating that Year 2000 solutions would be a State priority and requiring each
agency of the State, no later than December 31, 1998, to address Year 2000
problems in their essential systems and protect those systems from corruption by
non-compliant systems, in accordance with the Department of Information
Technology's
 
                                       10
<PAGE>
California 2000 Program. There can be no assurance that steps being taken by
state or local government agencies with respect to the Year 2000 problem will be
sufficient to avoid any adverse impact upon the budgets or operations of those
agencies.
 
    ORANGE COUNTY.  On December 6, 1994, Orange County, California, became the
largest municipality in the United States to file for protection under the
Federal bankruptcy laws. The filing stemmed from approximately $1.7 billion in
losses suffered by the County's investment pool due to investments in high risk
"derivative" securities. On June 12, 1996, it emerged from bankruptcy after the
successful sale of $880 million in municipal bonds allowed the county to pay off
the last of its creditors. On January 7, 1997, Orange County returned to the
municipal bond market with a $136 million bond issue maturing in 13 years at an
insured yield of 7.23%. In December, 1997, Moody's raised its ratings on $325
million of Orange County pension obligation bonds to Baa3 from Ba. In February
1998, Fitch assigned outstanding Orange County pension obligation bonds a BBB
rating.
 
    LOS ANGELES COUNTY.  Los Angeles County, the nation's largest county, has
also experienced financial difficulty. In August 1995 the credit rating of the
county's long-term bonds was downgraded for the third time since 1992 as a
result of, and among other things, severe operating deficits for the county's
health care system. In addition, the county was affected by an ongoing loss of
revenue caused by state property tax shift initiatives in 1993 through 1995. In
April 1998, the Los Angeles County Chief Administrative Officer proposed an
approximately $13.2 billion 1998-99 budget, which would be 5.3% larger than the
1997-98 budget, and which would not require cuts in services and jobs to close a
projected deficit. In June 1998, the Los Angeles County Board of Supervisors
approved an approximately $13.6 billion 1998-99 budget, reserving the right to
make further changes to reflect revenue allocation decisions in the final State
budget. In December 1998, Moody's raised the ratings on the County's general
obligation bonds to A1 from A2. The City of Los Angeles is the largest city in
the county and its general obligation bonds are rated AA by S&P and Aa by
Moody's.
 
    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.
 
   
C. INVESTMENT OBJECTIVE/POLICIES/INVESTMENT RESTRICTIONS
    
 
   
    The investment objective/policies/restrictions listed below have been
adopted by the Fund as fundamental policies. Under the Investment Company Act of
1940 (the "Investment Company Act"), a fundamental policy may not be changed
without the vote of a majority of the outstanding voting securities of the Fund.
The Investment Company Act defines a majority as the lesser of (a) 67% or more
of the shares present at a meeting of shareholders, if the holders of 50% of the
outstanding shares of the Fund are present or represented by proxy; or (b) more
than 50% of the outstanding shares of the Fund. For purposes of the following
restrictions: (i) all percentage limitations apply immediately after a purchase
or initial investment; and (ii) 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.
    
 
    In addition, 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 and provided
further that a guarantee of a security shall not be deemed a security issued by
the guarantor if the value of all securities guaranteed by the guarantor and
owned by the Fund does not exceed 10% of the value of the total assets of the
Fund; (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.
 
                                       11
<PAGE>
   
    The Fund will:
    
 
   
         1.  Seek to provide as high a level of daily income exempt from federal
    and California income tax as is consistent with stability of principal and
    liquidity.
    
 
    The Fund may not:
 
         1.  Invest in common stock.
 
         2.  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.
 
         3.  Invest 25% or more 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, its agencies or instrumentalities or to Municipal Obligations,
    including those issued by the State of California or its political
    subdivisions, or to domestic bank obligations.
 
         4.  Invest in securities of any issuer if, to the knowledge of the
    Fund, any officer or trustee of the Fund or of the Investment Manager owns
    more than 1/2 of 1% of the outstanding securities of the issuer, and the
    officers and trustees who own more than 1/2 of 1% own in the aggregate more
    than 5% of the outstanding securities of the issuer.
 
         5.  Purchase or sell real estate or interests therein, although the
    Fund may purchase securities secured by real estate or interests therein.
 
         6.  Purchase or sell commodities or commodity futures contracts.
 
         7.  Borrow money, except that the Fund may borrow from a bank 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).
 
         8.  Pledge its assets or assign or otherwise encumber them except to
    secure permitted borrowings. To meet the requirements of regulations in
    certain states, the Fund, 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 Fund are being sold in those states.
 
         9.  Issue senior securities as defined in the Investment Company Act
    except insofar as the Fund 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.
 
        10.  Make loans of money or securities, except: (a) by the purchase of
    debt obligations in which the Fund 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
    Fund may be deemed an underwriter under the Securities Act in disposing of a
    portfolio security.
 
        14.  Invest for the purpose of exercising control or management of any
    other issuer.
 
        15.  Purchase oil, gas or other mineral leases, rights or royalty
    contracts, or exploration or development programs.
 
        16.  Purchase securities of other investment companies, except in
    connection with a merger, consolidation, reorganization or acquisition of
    assets.
 
        17.  With respect to 75% of its total assets, purchase securities of any
    issuer if, immediately thereafter, more than 5% 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).
 
                                       12
<PAGE>
        18.  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).
 
   
    Notwithstanding any other investment policy or restriction, the Fund may
seek to achieve its investment objective by investing all of its assets in
another mutual fund. The other fund would have substantially the same investment
objective and policies as the Fund.
    
 
III. MANAGEMENT OF THE FUND
- --------------------------------------------------------------------------------
 
A. BOARD OF TRUSTEES
 
    The Board of Trustees of the Fund oversees the management of the Fund but
does not itself manage the Fund. The Trustees review various services provided
by or under the direction of the Investment Manager to ensure that the Fund's
general investment policies and programs are properly carried out. The Trustees
also conduct their review to ensure that administrative services are provided to
the Fund in a satisfactory manner.
 
    Under state law, the duties of the Trustees are generally characterized as a
duty of loyalty and a duty of care. The duty of loyalty requires a Trustee to
exercise his or her powers in the interest of the Fund and not the Trustee's own
interest or the interest of another person or organization. A Trustee satisfies
his or her duty of care by acting in good faith with the care of an ordinarily
prudent person and in a manner the Trustee reasonably believes to be in the best
interest of the Fund and its shareholders.
 
B. MANAGEMENT INFORMATION
 
    TRUSTEES AND OFFICERS.  The Board of the Fund consists of nine (9) Trustees.
These same individuals also serve as directors or trustees for all of the Morgan
Stanley Dean Witter Funds. Seven Trustees (77% of the total number) have no
affiliation or business connection with the Investment Manager or any of its
affiliated persons and do not own any stock or other securities issued by the
Investment Manager's parent company, MSDW. These are the "non-interested" or
"independent" Trustees. The other two Trustees (the "management Trustees") are
affiliated with the Investment Manager. All of the Independent Trustees also
serve as Independent Trustees of "Discover Brokerage Index Series," a mutual
fund for which the Investment Manager is the investment advisor. Four of the
seven Independent Trustees are also Independent Trustees of certain other mutual
funds, referred to as the "TCW/DW Funds," for which MSDW Services Company is the
manager and TCW Funds Management, Inc. is the investment advisor.
 
   
    The Trustees and executive officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with the
Investment Manager, and with the 84 Morgan Stanley Dean Witter Funds, the 11
TCW/DW Funds and Discover Brokerage Index Series, are shown below.
    
 
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Michael Bozic (58) ...................................  Vice Chairman of Kmart Corporation (since December, 1998);
Trustee                                                 Director or Trustee of the Morgan Stanley Dean Witter
c/o Kmart Corporation                                   Funds; Trustee of Discover Brokerage Index Series;
3100 West Big Beaver Road                               formerly Chairman and Chief Executive Officer of Levitz
Troy, Michigan                                          Furniture Corporation (November, 1995-November, 1998) and
                                                        President and Chief Executive Officer of Hills Department
                                                        Stores (May, 1991-July, 1995); formerly variously
                                                        Chairman, Chief Executive Officer, President and Chief
                                                        Operating Officer (1987-1991) of the Sears Merchandise
                                                        Group of Sears, Roebuck and Co.; Director of Eaglemark
                                                        Financial Services, Inc. and Weirton Steel Corporation.
</TABLE>
 
                                       13
<PAGE>
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Charles A. Fiumefreddo* (65) .........................  Chairman, Director or Trustee, President and Chief
Chairman of the Board, President,                       Executive Officer of the Morgan Stanley Dean Witter Funds;
Chief Executive Officer and Trustee                     Chairman, Chief Executive Officer and Trustee of the
Two World Trade Center                                  TCW/DW Funds; Trustee of Discover Brokerage Index Series;
New York, New York                                      formerly Chairman, Chief Executive Officer and Director of
                                                        the Investment Manager, the Distributor and MSDW Services
                                                        Company; Executive Vice President and Director of Dean
                                                        Witter Reynolds; Chairman and Director of the Transfer
                                                        Agent; formerly Director and/or officer of various MSDW
                                                        subsidiaries (until June, 1998).
 
Edwin J. Garn (66) ...................................  Director or Trustee of the Morgan Stanley Dean
Trustee                                                 Witter Funds; Trustee of Discover Brokerage
c/o Huntsman Corporation                                Index Series; formerly United States Senator
500 Huntsman Way                                        (R-Utah) (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
                                                        Corporation; Director of Franklin Covey (time management
                                                        systems),BMW Bank of North America, Inc., United Space
                                                        Alliance (joint venture between Lockheed Martin and the
                                                        Boeing Company) and Nuskin Asia Pacific (multilevel
                                                        marketing); member of the board of various civic and
                                                        charitable organizations.
 
John R. Haire (74) ...................................  Chairman of the Audit Committee and Director or Trustee of
Trustee                                                 the Morgan Stanley Dean Witter Funds; Chairman of the
Two World Trade Center                                  Audit Committee and Trustee of the TCW/DW Funds; Chairman
New York, New York                                      of the Audit Committee and Chairman of the Audit Committee
                                                        and Trustee of Discover Brokerage Index Series; formerly
                                                        Chairman of the Independent Directors or Trustees of the
                                                        Morgan Stanley Dean Witter Funds and the TCW/ DW Funds
                                                        (until June, 1998); formerly President, Council for Aid to
                                                        Education (1978-1989) and Chairman and Chief Executive
                                                        Officer of Anchor Corporation, an investment advisor
                                                        (1964-1978).
</TABLE>
    
 
                                       14
<PAGE>
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Wayne E. Hedien (65) .................................  Retired; Director or Trustee of the Morgan Stanley Dean
Trustee                                                 Witter Funds; Trustee of Discover Brokerage Index Series;
c/o Gordon Altman Butowsky                              Director of The PMI Group, Inc. (private mortgage
Weitzen Shalov & Wein                                   insurance); Trustee and Vice Chairman of The Field Museum
Counsel to the Independent Trustees                     of Natural History; formerly associated with the Allstate
114 West 47th Street                                    Companies (1966-1994), most recently as Chairman of The
New York, New York                                      Allstate Corporation (March, 1993-December, 1994) and
                                                        Chairman and Chief Executive Officer of its wholly-owned
                                                        subsidiary, Allstate Insurance Company (July,
                                                        1989-December, 1994); director of various other business
                                                        and charitable organizations.
 
Dr. Manuel H. Johnson (50) ...........................  Senior Partner, Johnson Smick International, Inc., a
Trustee                                                 consulting firm; Co-Chairman and a founder of the Group of
c/o Johnson Smick International, Inc.                   Seven Council (G7C), an international economic commission;
1133 Connecticut Avenue, N.W.                           Director or Trustee of the Morgan Stanley Dean Witter
Washington, D.C.                                        Funds; Trustee of the TCW/ DW Funds; Trustee of Discover
                                                        Brokerage Index Series; Director of NASDAQ (since June,
                                                        1995); Director of Greenwich Capital Markets, Inc.
                                                        (broker-dealer) and NVR, Inc. (home construction); Chair-
                                                        man and Trustee of the Financial Accounting Foundation
                                                        (oversight organization of the Financial Accounting
                                                        Standards Board); formerly Vice Chairman of the Board of
                                                        Governors of the Federal Reserve System (1986-1990) and
                                                        Assistant Secretary of the U.S. Treasury.
 
Michael E. Nugent (62) ...............................  General Partner, Triumph Capital, L.P., a private
Trustee                                                 investment partnership; Director or Trustee of the Morgan
c/o Triumph Capital, L.P.                               Stanley Dean Witter Funds; Trustee of the TCW/DW Funds;
237 Park Avenue                                         Trustee of Discover Brokerage Index Series; formerly Vice
New York, New York                                      President, Bankers Trust Company and BT Capital
                                                        Corporation (1984-1988); director of various business
                                                        organizations.
 
Philip J. Purcell* (55) ..............................  Chairman of the Board of Directors and Chief Executive
Trustee                                                 Officer of MSDW, Dean Witter Reynolds and Novus Credit
1585 Broadway                                           Services Inc.; Director of the Distributor; Director or
New York, New York                                      Trustee of the Morgan Stanley Dean Witter Funds; Trustee
                                                        of Discover Brokerage Index Series; Director and/or
                                                        officer of various MSDW subsidiaries.
</TABLE>
    
 
                                       15
<PAGE>
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
John L. Schroeder (68) ...............................  Retired; Director or Trustee of the Morgan Stanley Dean
Trustee                                                 Witter Funds; Trustee of the TCW/DW Funds; Trustee of
c/o Gordon Altman Butowsky                              Discover Brokerage Index Series; Director of Citizens
Weitzen Shalov & Wein                                   Utilities Company; formerly Executive Vice President and
Counsel to the Independent Trustees                     Chief Investment Officer of the Home Insurance Company
114 West 47th Street                                    (August, 1991-September, 1995).
New York, New York
 
Barry Fink (44) ......................................  Senior Vice President (since March, 1997) and Secretary
Vice President,                                         and General Counsel (since February, 1997) and Director
Secretary and General Counsel                           (since July, 1998) of the Investment Manager and MSDW
Two World Trade Center                                  Services Company; Senior Vice President (since March,
New York, New York                                      1997) and Assistant Secretary and Assistant General
                                                        Counsel (since February, 1997) of the Distributor;
                                                        Assistant Secretary of Dean Witter Reynolds (since August,
                                                        1996); Vice President, Secretary and General Counsel of
                                                        the Morgan Stanley Dean Witter Funds and the TCW/DW Funds
                                                        (since February, 1997); Vice President, Secretary and
                                                        General Counsel of Discover Brokerage Index Series;
                                                        previously First Vice President (June, 1993-February,
                                                        1997), Vice President and Assistant Secretary and
                                                        Assistant General Counsel of the Investment Manager and
                                                        MSDW Services Company and Assistant Secretary of the Mor-
                                                        gan Stanley Dean Witter Funds and the TCW/DW Funds.
 
Katherine H. Stromberg (50) ..........................  Vice President of the Investment Manager; Vice President
Vice President                                          of various Morgan Stanley Dean Witter Funds.
Two World Trade Center
New York, New York
 
Thomas F. Caloia (53) ................................  First Vice President and Assistant Treasurer of the
Treasurer                                               Investment Manager and MSDW Services Company; Treasurer of
Two World Trade Center                                  the Morgan Stanley Dean Witter Funds, the TCW/DW Funds and
New York, New York                                      Discover Brokerage Index Series.
</TABLE>
    
 
- ------------------------
*Denotes Trustees who are "interested persons" of the Fund as defined by the
Investment Company Act.
 
   
    In addition, MITCHELL M. MERIN, President and Chief Operating Officer of
Asset Management of MSDW, President, Chief Executive Officer and Director of the
Investment Manager and MSDW Services Company, Chairman, Chief Executive Officer
and Director of the Distributor and the Transfer Agent, Executive Vice President
and Director of Dean Witter Reynolds, and Director of various MSDW subsidiaries,
RONALD E. ROBISON, Executive Vice President, Chief Administrative Officer and
Director of the Investment Manager and MSDW Services Company, ROBERT S.
GIAMBRONE, Senior Vice President of the Investment Manager, MSDW Services
Company, the Distributor and the Transfer Agent and Director of the Transfer
Agent, JOSEPH J. MCALINDEN, Executive Vice President and Chief Investment
Officer of the
    
 
                                       16
<PAGE>
   
Investment Manager and Director of the Transfer Agent, and PETER M. AVELAR,
JONATHAN R. PAGE and JAMES F. WILLISON, Senior Vice Presidents of the Investment
Manager, and JOSEPH R. ARCIERI and GERARD J. LIAN, Vice Presidents of the
Investment Manager, are Vice Presidents of the Fund.
    
 
   
    In addition, FRANK BRUTTOMESSO, MARILYN K. CRANNEY, LOU ANNE D. MCLNNIS,
CARSTEN OTTO and RUTH ROSSI, First Vice Presidents and Assistant General
Counsels of the Investment Manager and MSDW Services Company, TODD LEBO, Vice
President and Assistant General Counsel of the Investment Manager and MSDW
Services Company, are Assistant Secretaries of the Fund.
    
 
    INDEPENDENT TRUSTEES AND THE COMMITTEES.  Law and regulation establish both
general guidelines and specific duties for the Independent Trustees. The Morgan
Stanley Dean Witter Funds seek as Independent Trustees individuals of
distinction and experience in business and finance, government service or
academia; these are people whose advice and counsel are in demand by others and
for whom there is often competition. To accept a position on the Funds' Boards,
such individuals may reject other attractive assignments because the Funds make
substantial demands on their time. Indeed, by serving on the Funds' Boards,
certain Trustees who would otherwise be qualified and in demand to serve on bank
boards would be prohibited by law from doing so. All of the Independent Trustees
serve as members of the Audit Committee. Three of them also serve as members of
the Derivatives Committee. In addition, three of the Trustees, including two
Independent Trustees, serve as members of the Insurance Committee.
 
    The Independent Trustees are charged with recommending to the full Board
approval of management, advisory and administration contracts, Rule 12b-1 plans
and distribution and underwriting agreements; continually reviewing Fund
performance; checking on the pricing of portfolio securities, brokerage
commissions, transfer agent costs and performance, and trading among Funds in
the same complex; and approving fidelity bond and related insurance coverage and
allocations, as well as other matters that arise from time to time. The
Independent Trustees are required to select and nominate individuals to fill any
Independent Trustee vacancy on the Board of any Fund that has a Rule 12b-1 plan
of distribution. Most of the Morgan Stanley Dean Witter Funds have a Rule 12b-1
plan.
 
    The Audit Committee is charged with recommending to the full Board the
engagement or discharge of the Fund's independent accountants; directing
investigations into matters within the scope of the independent accountants'
duties, including the power to retain outside specialists; reviewing with the
independent accountants the audit plan and results of the auditing engagement;
approving professional services provided by the independent accountants and
other accounting firms prior to the performance of the services; reviewing the
independence of the independent accountants; considering the range of audit and
non-audit fees; reviewing the adequacy of the Fund's system of internal
controls; and preparing and submitting Committee meeting minutes to the full
Board.
 
    The Board of each Fund has a Derivatives Committee to approve parameters for
and monitor the activities of the Fund with respect to derivative investments,
if any, made by the Fund.
 
    Finally, the Board of each Fund has formed an Insurance Committee to review
and monitor the insurance coverage maintained by the Fund.
 
    ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL MORGAN
STANLEY DEAN WITTER FUNDS.  The Independent Trustees and the Funds' management
believe that having the same Independent Trustees for each of the Morgan Stanley
Dean Witter Funds avoids the duplication of effort that would arise from having
different groups of individuals serving as Independent Trustees for each of the
Funds or even of sub-groups of Funds. They believe that having the same
individuals serve as Independent Trustees of all the Funds tends to increase
their knowledge and expertise regarding matters which affect the Fund complex
generally and enhances their ability to negotiate on behalf of each Fund with
the Fund's service providers. This arrangement also precludes the possibility of
separate groups of Independent Trustees arriving at conflicting decisions
regarding operations and management of the Funds and avoids the cost and
confusion that would likely ensue. Finally, having the same Independent Trustees
serve on all Fund Boards enhances the ability of each Fund to obtain, at modest
 
                                       17
<PAGE>
cost to each separate Fund, the services of Independent Trustees, of the
caliber, experience and business acumen of the individuals who serve as
Independent Trustees of the Morgan Stanley Dean Witter Funds.
 
    TRUSTEE AND OFFICER INDEMNIFICATION.  The Fund's Declaration of Trust
provides that no Trustee, officer, employee or agent of the Fund is liable to
the Fund or to a shareholder, nor is any Trustee, officer, employee or agent
liable to any third persons in connection with the affairs of the Fund, 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 the Fund property for
satisfaction of claims arising in connection with the affairs of the Fund. With
the exceptions stated, the Declaration of Trust provides that a Trustee,
officer, employee or agent is entitled to be indemnified against all liability
in connection with the affairs of the Fund.
 
C. COMPENSATION
 
   
    The Fund pays each Independent Trustee an annual fee of $800 plus a per
meeting fee of $50 for meetings of the Board of Trustees, the Independent
Trustees or Committees of the Board of Trustees attended by the Trustee (the
Fund pays the Chairman of the Audit Committee an additional annual fee of $750).
If a Board meeting and a meeting of the Independent Trustees or a Committee
meeting, or a meeting of the Independent Trustees and/or more than one Committee
meeting, take place on a single day, the Trustees are paid a single meeting fee
by the Fund. The Fund also reimburses such Trustees for travel and other
out-of-pocket expenses incurred by them in connection with attending such
meetings. Trustees and officers of the Fund who are or have been employed by the
Investment Manager or an affiliated company receive no compensation or expenses
reimbursed from the Fund for their services as Trustee. Mr. Haire currently
serves as Chairman of the Audit Committee. Prior to June 1, 1998, Mr. Haire also
served as Chairman of the Independent Trustees for which services the Fund paid
him an additional annual fee of $1,200.
    
 
    The following table illustrates the compensation that the Fund paid to its
Independent Trustees for the fiscal year ended December 31, 1998.
 
                               FUND COMPENSATION
 
   
<TABLE>
<CAPTION>
                                                                   AGGREGATE
                                                                 COMPENSATION
NAME OF INDEPENDENT TRUSTEE                                      FROM THE FUND
- --------------------------------------------------------------  ---------------
<S>                                                             <C>
Michael Bozic.................................................      $1,450
Edwin J. Garn.................................................       1,600
John R. Haire.................................................       2,900
Wayne E. Hedien...............................................       1,600
Dr. Manuel H. Johnson.........................................       1,550
Michael E. Nugent.............................................       1,600
John L. Schroeder.............................................       1,600
</TABLE>
    
 
   
    The following table illustrates the compensation paid to the Fund's
Independent Trustees for the calendar year ended December 31, 1998 for services
to the 85 Morgan Stanley Dean Witter Funds and, in the case of Messrs. Haire,
Johnson, Nugent and Schroeder, the 11 TCW/DW Funds that were in operation at
December 31, 1998. Mr. Haire serves as Chairman of the Audit Committee of each
Morgan Stanley Dean Witter Fund and each TCW/DW Fund and, prior to June 1, 1998,
also served as Chairman of the Independent Directors or Trustees of those Funds.
With respect to Messrs. Haire, Johnson, Nugent and Schroeder, the TCW/DW Funds
are included solely because of a limited exchange privilege
    
 
                                       18
<PAGE>
between those Funds and five Morgan Stanley Dean Witter Money Market Funds. No
compensation was paid to the Fund's Independent Trustees by Discover Brokerage
Index Series for the calendar year ended December 31, 1998.
 
    CASH COMPENSATION FROM MORGAN STANLEY DEAN WITTER FUNDS AND TCW/DW FUNDS
 
   
<TABLE>
<CAPTION>
                                                                   FOR SERVICE AS
                                                                    CHAIRMAN OF                      TOTAL CASH
                                                                    INDEPENDENT      FOR SERVICE    COMPENSATION
                               FOR SERVICE                           DIRECTORS/          AS         FOR SERVICES
                              AS DIRECTOR OR                        TRUSTEES AND     CHAIRMAN OF         TO
                               TRUSTEE AND                             AUDIT         INDEPENDENT      85 MORGAN
                             COMMITTEE MEMBER    FOR SERVICE AS    COMMITTEES OF    TRUSTEES AND       STANLEY
                               OF 85 MORGAN       TRUSTEE AND        85 MORGAN          AUDIT        DEAN WITTER
                                 STANLEY        COMMITTEE MEMBER      STANLEY       COMMITTEES OF     FUNDS AND
NAME OF                        DEAN WITTER        OF 11 TCW/DW      DEAN WITTER       11 TCW/DW       11 TCW/DW
INDEPENDENT TRUSTEE               FUNDS              FUNDS             FUNDS            FUNDS           FUNDS
- ---------------------------  ----------------   ----------------   --------------   -------------   -------------
<S>                          <C>                <C>                <C>              <C>             <C>
Michael Bozic..............      $120,150           --                 --               --            $120,150
Edwin J. Garn..............       132,450           --                 --               --             132,450
John R. Haire..............       136,450           $66,931           $101,338        $ 14,725         319,444
Wayne E. Hedien............       132,350           --                 --               --             132,350
Dr. Manuel H. Johnson......       128,400            62,331            --               --             190,731
Michael E. Nugent..........       132,450            62,131            --               --             194,581
John L. Schroeder..........       132,450            64,731            --               --             197,181
</TABLE>
    
 
    As of the date of this STATEMENT OF ADDITIONAL INFORMATION, 55 of the Morgan
Stanley Dean Witter Funds, including the Fund, have adopted a retirement program
under which an Independent Trustee who retires after serving for at least five
years (or such lesser period as may be determined by the Board) as an
Independent Director or Trustee of any Morgan Stanley Dean Witter Fund that has
adopted the retirement program (each such Fund referred to as an "Adopting Fund"
and each such Trustee referred to as an "Eligible Trustee") is entitled to
retirement payments upon reaching the eligible retirement age (normally, after
attaining age 72). Annual payments are based upon length of service.
 
   
    Currently, upon retirement, each Eligible Trustee is entitled to receive
from the Adopting Fund, commencing as of his or her retirement date and
continuing for the remainder of his or her life, an annual retirement benefit
(the "Regular Benefit") equal to 30.22% of his or her Eligible Compensation plus
0.5036662% of such Eligible Compensation for each full month of service as an
Independent Director or Trustee of any Adopting Fund in excess of five years up
to a maximum of 60.44% after ten years of service. The foregoing percentages may
be changed by the Board.(1) "Eligible Compensation" is one-fifth of the total
compensation earned by such Eligible Trustee for service to the Adopting Fund in
the five year period prior to the date of the Eligible Trustee's retirement.
Benefits under the retirement program are not secured or funded by the Adopting
Funds.
    
 
- ------------------------
1    An Eligible Trustee may elect alternative payments of his or her retirement
     benefits based upon the combined life expectancy of the Eligible Trustee
     and his or her spouse on the date of such Eligible Trustee's retirement. In
     addition, the Eligible Trustee may elect that the surviving spouse's
     periodic payment of benefits will be equal to a lower percentage of the
     periodic amount when both spouses were alive. The amount estimated to be
     payable under this method, through the remainder of the later of the lives
     of the Eligible Trustee and spouse, will be the actuarial equivalent of the
     Regular Benefit.
 
                                       19
<PAGE>
    The following table illustrates the retirement benefits accrued to the
Fund's Independent Trustees by the Fund for the fiscal year ended December 31,
1998 and by the 55 Morgan Stanley Dean Witter Funds (including the Fund) for the
year ended December 31, 1998, and the estimated retirement benefits for the
Independent Trustees, to commence upon their retirement, from the Fund as of
December 31, 1998 and from the 55 Morgan Stanley Dean Witter Funds as of
December 31, 1998.
 
   RETIREMENT BENEFITS FROM THE FUND AND ALL MORGAN STANLEY DEAN WITTER FUNDS
 
   
<TABLE>
<CAPTION>
                                         FOR ALL ADOPTING FUNDS          RETIREMENT BENEFITS       ESTIMATED ANNUAL
                                    ---------------------------------    ACCRUED AS EXPENSES           BENEFITS
                                       ESTIMATED                                                  UPON RETIREMENT(2)
                                    CREDITED YEARS       ESTIMATED      ---------------------     -------------------
                                     OF SERVICE AT     PERCENTAGE OF                BY ALL          FROM     FROM ALL
                                      RETIREMENT         ELIGIBLE       BY THE     ADOPTING         THE      ADOPTING
NAME OF INDEPENDENT TRUSTEE          (MAXIMUM 10)      COMPENSATION      FUND       FUNDS           FUND      FUNDS
- ----------------------------------  ---------------   ---------------   ------   ------------     --------   --------
<S>                                 <C>               <C>               <C>      <C>              <C>        <C>
Michael Bozic.....................          10             60.44%       $  396   $     22,377      $   997   $ 52,250
Edwin J. Garn.....................          10             60.44           599         35,225          997     52,250
John R. Haire.....................          10             60.44           271        (12,211)(3)    2,455    134,705
Wayne E. Hedien...................           9             51.37           740         41,979          848     44,413
Dr. Manuel H. Johnson.............          10             60.44           240         14,047          997     52,250
Michael E. Nugent.................          10             60.44           421         25,336          997     52,250
John L. Schroeder.................           8             50.37           807         45,117          838     44,343
</TABLE>
    
 
- ------------------------
   
2    Based on current levels of compensation. Amount of annual benefits also
     varies depending on the Trustee's elections described in Footnote (1)
     above.
    
3    This number reflects the effect of the extension of Mr. Haire's term as
     Director or Trustee until May 1, 1999.
 
   
IV. CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
    
- --------------------------------------------------------------------------------
 
   
    As of March 16, 1999, no person owned 5% or more of the outstanding shares
of the Fund.
    
 
    As of the date of this STATEMENT OF ADDITIONAL INFORMATION, the aggregate
number of shares of beneficial interest of the Fund owned by the Fund's officers
and Trustees as a group was less than 1% of the Fund's shares of beneficial
interest outstanding.
 
V. INVESTMENT MANAGEMENT AND OTHER SERVICES
- --------------------------------------------------------------------------------
 
A. INVESTMENT MANAGER
 
    The Investment Manager to the Fund is Morgan Stanley Dean Witter Advisors
Inc., a Delaware corporation, whose address is Two World Trade Center, New York,
New York 10048. The Investment Manager is a wholly-owned subsidiary of MSDW, a
Delaware corporation. MSDW is a preeminent global financial services firm that
maintains leading market positions in each of its three primary businesses:
securities, asset management and credit services.
 
    Pursuant to an Investment Management Agreement (the "Management Agreement")
with the Investment Manager, the Fund has retained the Investment Manager to
provide administrative services and manage the investment of the Fund's assets,
including the placing of orders for the purchase and sale of portfolio
securities. The Fund pays the Investment Manager monthly compensation calculated
daily by applying the following annual rates to the net assets of the Fund,
determined as of the close of business on every 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
 
                                       20
<PAGE>
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.
 
    For the fiscal years ended December 31, 1996, 1997 and 1998, the Investment
Manager accrued total compensation under the Management Agreement in the amounts
of $1,326,761, $1,344,913 and $1,479,199, respectively.
 
    The Investment Manager has retained its wholly-owned subsidiary, MSDW
Services Company, to perform administrative services for the Fund.
 
B. PRINCIPAL UNDERWRITER
 
    The Fund's principal underwriter is the Distributor (which has the same
address as the Investment Manager). In this capacity, the Fund's shares are
distributed by the Distributor. The Distributor has entered into a selected
dealer agreement with Dean Witter Reynolds, which through its own sales
organization sells shares of the Fund. In addition, the Distributor may enter
into similar agreements with other selected broker-dealers. The Distributor, a
Delaware corporation, is a wholly-owned subsidiary of MSDW.
 
    The Trustees, including a majority of the Independent Trustees, approved the
current Distribution Agreement appointing the Distributor as exclusive
distributor of the Fund's shares and providing for the Distributor to bear
distribution expenses not borne by the Fund. By its terms, the Distribution
Agreement had an initial term ending April 30, 1998 and will remain in effect
from year to year thereafter if approved by the Trustees. At their meeting held
on April 30, 1998, the Trustees of the Fund, including a majority of the
Independent Trustees, approved the continuation of the Distribution Agreement
until April 30, 1999.
 
    The Distributor bears all expenses it may incur in providing services under
the Distribution Agreement. The Distributor also pays certain expenses in
connection with the distribution of the Fund's shares, including the costs of
preparing, printing and distributing advertising or promotional materials, and
the costs of printing and distributing prospectuses and supplements thereto used
in connection with the offering and sale of the Fund's shares. The Fund bears
the costs of initial typesetting, printing and distribution of prospectuses and
supplements thereto to shareholders. The Fund also bears the costs of
registering the Fund and its shares under federal and state securities laws and
pays filing fees in accordance with state securities laws.
 
    The Fund and the Distributor have agreed to indemnify each other against
certain liabilities, including liabilities under the Securities Act. Under the
Distribution Agreement, the Distributor uses its best efforts in rendering
services to the Fund, but in the absence of willful misfeasance, bad faith,
gross negligence or reckless disregard of its obligations, the Distributor is
not liable to the Fund or any of its shareholders for any error of judgment or
mistake of law or for any act or omission or for any losses sustained by the
Fund or its shareholders.
 
C. SERVICES PROVIDED BY THE INVESTMENT MANAGER AND FUND EXPENSES PAID BY THIRD
PARTIES
 
    The Investment Manager manages the investment of the Fund's assets,
including the placing of orders for the purchase and sale of portfolio
securities. The Investment Manager obtains and evaluates the 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 Fund
in a manner consistent with its investment objective.
 
    Under the terms of the Management Agreement, in addition to managing the
Fund's investments, the Investment Manager maintains certain of the Fund's books
and records and furnishes, at its own expense, the office space, facilities,
equipment, clerical help, bookkeeping and certain legal services as the Fund may
reasonably require in the conduct of its business, including the preparation of
prospectuses, proxy statements and reports required to be filed with federal and
state securities commissions (except insofar as the participation or assistance
of independent accountants and attorneys is, in the opinion of the Investment
Manager, necessary or desirable). In addition, the Investment Manager pays
 
                                       21
<PAGE>
the salaries of all personnel, including officers of the Fund, 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 Fund.
 
    Expenses not expressly assumed by the Investment Manager under the
Management Agreement or by the Distributor, will be paid by the Fund. These
expenses include, but are not limited to: expenses of the Plan of Distribution
pursuant to Rule 12b-1; charges and expenses of any registrar, custodian, stock
transfer and dividend disbursing agent; brokerage commissions; taxes; engraving
and printing share certificates; registration costs of the Fund and its shares
under federal and state securities laws; the cost and expense of printing,
including typesetting, and distributing prospectuses of the Fund and supplements
thereto to the Fund's 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 Fund's shares; fees and expenses of legal
counsel, including counsel to the Trustees who are not interested persons of the
Fund or of the Investment Manager (not including compensation or expenses of
attorneys who are employees of the Investment Manager); fees and expenses of the
Fund's independent accountants; membership dues of industry associations;
interest on Fund borrowings; postage; insurance premiums on property or
personnel (including officers and Trustees) of the Fund which inure to its
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 Fund's operation.
 
    The Management Agreement provides 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 Fund or any
of its investors for any act or omission by the Investment Manager or for any
losses sustained by the Fund or its investors.
 
   
    The Management Agreement will remain in effect from year to year thereafter,
provided continuance of the Management Agreement is approved at least annually
by the vote of the holders of a majority, as defined in the Investment Company
Act, of the outstanding shares of the Fund, or by the Trustees; provided that in
either event such continuance is approved annually by the vote of a majority of
the Trustees.
    
 
D. RULE 12b-1 PLAN
 
    In accordance with a Plan of Distribution pursuant to Rule 12b-1 under the
Investment Company Act between the Fund and the Distributor, the Distributor
provides certain services in connection with the promotion of sales of Fund
shares (the "Plan").
 
    The Plan provides that the Distributor bears the expense of all promotional
and distribution related activities on behalf of the Fund, 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 and expenses of Dean Witter Reynolds' and other selected
Broker-Dealers' Financial Advisors and other employees, including overhead and
telephone expenses; (2) sales incentives and bonuses to sales representatives
and to marketing personnel in connection with promoting sales of the Fund's
shares; (3) expenses incurred in connection with promoting sales of the Fund's
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.
 
    Dean Witter Reynolds Financial Advisors are paid an annual residual
commission, currently a residual of up to 0.10% of the current value of the
respective accounts for which they are the Financial Advisors of record. The
residual is a charge which reflects residual commissions paid by Dean Witter
Reynolds to its Financial Advisors and Dean Witter Reynolds' expenses associated
with the servicing of shareholders' accounts, including the expenses of
operating Dean Witter Reynolds' branch offices in connection with the servicing
of shareholders' accounts, which expenses include lease costs, the
 
                                       22
<PAGE>
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.
 
    The Fund is authorized to reimburse specific expenses incurred or to be
incurred in promoting the distribution of the Fund's shares. Reimbursement is
made through payments at the end of each month. The amount of each monthly
payment may in no event exceed an amount equal to a payment at the annual rate
of 0.15 of 1% of the Fund's average daily net assets during the month. No
interest or other financing charges will be incurred for which reimbursement
payments under the Plan will be made. In addition, no interest charges, if any,
incurred on any distribution expense incurred by the Distributor or other
selected dealers pursuant to the Plan, will be reimbursable under the Plan. In
the case of all expenses other than expenses representing a residual to
Financial Advisors, such amounts shall be determined at the beginning of each
calendar quarter by the Trustees, including a majority of the Independent 12b-1
Trustees. Expenses representing a residual to Financial Advisors may be
reimbursed without prior determination. In the event that the Distributor
proposes that monies shall be reimbursed for other than such expenses, then in
making quarterly determinations of the amounts that may be expended by the Fund,
the Investment Manager provides and the Trustees review a quarterly budget of
projected incremental distribution expenses to be incurred on behalf of the
Fund, together with a report explaining the purposes and anticipated benefits of
incurring such expenses. The Trustees determine which particular expenses, and
the portions thereof, that may be borne by the Fund, and in making such a
determination shall consider the scope of the Distributor's commitment to
promoting the distribution of the Fund's shares.
 
   
    The Fund reimbursed $282,477 to the Distributor pursuant to the Plan which
amounted to 0.10 of 1% of the Fund's average daily net assets for the fiscal
year ended December 31, 1998. Based upon the total amounts spent by the
Distributor during the period, it is estimated that the amount paid by the Fund
to the Distributor for distribution was spent in approximately the following
ways: (i) advertising -- $0; (ii) printing and mailing 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 payments to Dean Witter Reynolds for expenses
substantially all of which relate to compensation of sales personnel and other
associated overhead expenses -- $282,477. No payments under the Plan were made
for interest, carrying or other financing charges.
    
 
    Under the Plan, the Distributor uses its best efforts in rendering services
to the Fund, but in the absence of willful misfeasance, bad faith, gross
negligence or reckless disregard of its obligations, the Distributor is not
liable to the Fund or any of its shareholders for any error of judgment or
mistake of law or for any act or omission or for any losses sustained by the
Fund or its shareholders.
 
    Under the Plan, the Distributor provides the Fund, for review by the
Trustees, and the Trustees review, promptly after the end of each calendar
quarter, a written report regarding the incremental distribution expenses
incurred on behalf of the Fund during such calendar quarter, which report
includes (1) an itemization of the types of expenses and the purposes therefore;
(2) the amounts of such expenses; and (3) a description of the benefits derived
by the Fund. In the Trustees' quarterly review of the Plan they consider its
continued appropriateness and the level of compensation provided therein.
 
    No interested person of the Fund nor any Independent Trustee has any direct
financial interest in the operation of the Plan except to the extent that the
Distributor, the Investment Manager, Dean Witter Reynolds, MSDW Services Company
or certain of their employees may be deemed to have such an interest as a result
of benefits derived from the successful operation of the Plan or as a result of
receiving a portion of the amounts expended thereunder by the Fund.
 
   
    On an annual basis, the Trustees, including a majority of the Independent
Trustees, consider whether the Plan should be continued. Prior to approving the
most recent continuation of the Plan, the Trustees requested and received from
the Distributor and reviewed all the information which they deemed necessary to
arrive at an informed determination. In making their determination to continue
the Plan, the Trustees considered: (1) the Fund's experience under the Plan and
whether such experience
    
 
                                       23
<PAGE>
indicates that the Plan is operating as anticipated; (2) the benefits the Fund
had obtained, was obtaining and would be likely to obtain under the Plan,
including that: (a) the Plan is essential in order to implement the Fund's
method and to enable the Fund to continue to grow and avoid a pattern of net
redemptions which, in turn, are essential for effective investment management;
and (b) without the reimbursement of distribution and account maintenance
expenses of Dean Witter Reynolds's branch offices made possible by the 12b-1
fees, Dean Witter Reynolds could not establish and maintain an effective system
for distribution, servicing of Fund shareholders and maintenance of shareholder
accounts; and (3) what services had been provided and were continuing to be
provided under the Plan to the Fund and its shareholders. Based upon their
review, the Trustees, including each of the Independent Trustees, determined
that continuation of the Plan would be in the best interest of the Fund and
would have a reasonable likelihood of continuing to benefit the Fund and its
shareholders. In the Trustees' quarterly review of the Plan, they will consider
its continued appropriateness and the level of compensation provided therein.
 
    The Plan may not be amended to increase materially the amount to be spent
for the services described therein without approval by the shareholders of the
Fund, and all material amendments to the Plan must also be approved by the
Trustees in the manner described above. The Plan may be terminated at any time,
without payment of any penalty, by vote of a majority of the Independent
Trustees or by a vote of a majority of the outstanding voting securities of the
Fund (as defined in the Investment Company Act) on not more than thirty days'
written notice to any other party to the Plan. So long as the Plan is in effect,
the election and nomination of Independent Trustees shall be committed to the
discretion of the Independent Trustees.
 
E. OTHER SERVICE PROVIDERS
 
(1) TRANSFER AGENT/DIVIDEND-PAYING AGENT
 
   
    Morgan Stanley Dean Witter Trust FSB is the transfer agent for the Fund's
shares and the Dividend Disbursing Agent for payment of dividends and
distributions on Fund shares and Agent for shareholders under various investment
plans. The principal business address of the Transfer Agent is Harborside
Financial Center, Plaza Two, Jersey City, New Jersey 07311.
    
 
(2) CUSTODIAN AND INDEPENDENT ACCOUNTANTS
 
    The Bank of New York, 90 Washington Street, New York, New York 10286 is the
Custodian for the Fund's assets. Any of the Fund's cash balances with the
Custodian in excess of $100,000 are unprotected by federal deposit insurance.
These balances may, at times, be substantial.
 
   
    PricewaterhouseCoopers LLP, 1177 Avenue of the Americas, New York, New York
10036 serves as the independent accountants of the Fund. The independent
accountants are responsible for auditing the annual financial statements of the
Fund.
    
 
(3) AFFILIATED PERSONS
 
    The Transfer Agent is an affiliate of the Investment Manager, and of the
Distributor. As Transfer Agent and Dividend Disbursing Agent, the Transfer
Agent'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,
the Transfer Agent receives a per shareholder account fee from the Fund.
 
VI. BROKERAGE ALLOCATION AND OTHER PRACTICES
- --------------------------------------------------------------------------------
 
A. BROKERAGE TRANSACTIONS
 
    Subject to the general supervision of the Trustees, the Investment Manager
is responsible for decisions to buy and sell securities for the Fund, the
selection of brokers and dealers to effect the transactions, and the negotiation
of brokerage commissions, if any. The Fund expects that the primary market for
the securities in which it intends to invest will generally be the
over-the-counter market.
 
                                       24
<PAGE>
Securities are generally traded in the over-the-counter market 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. The Fund also expects that securities will be purchased at times in
underwritten offerings where the price includes a fixed amount of compensation,
generally referred to as the underwriter's concession or discount. On occasion
the Fund may also purchase certain money market instruments directly from an
issuer, in which case no commissions or discounts are paid.
 
    During the fiscal years ended December 31, 1996, 1997 and 1998, the Fund
paid no such brokerage commissions or concessions.
 
B. COMMISSIONS
 
    Pursuant to an order of the SEC, the Fund may effect principal transactions
in certain money market instruments with Dean Witter Reynolds. The Fund will
limit its transactions with Dean Witter Reynolds to U.S. Government and
Government Agency Securities, Bank Money Instruments (i.e. Certificates of
Deposit and Bankers' Acceptances) and Commercial Paper (not including Tax-Exempt
Municipal Paper). The transactions will be effected with Dean Witter Reynolds
only when the price available from Dean Witter Reynolds is better than that
available from other dealers.
 
    During the fiscal years ended December 31, 1996, 1997 and 1998, the Fund did
not effect any principal transactions with Dean Witter Reynolds.
 
    Consistent with the policy described above, brokerage transactions in
securities listed on exchanges or admitted to unlisted trading privileges may be
effected through Dean Witter Reynolds, Morgan Stanley & Co. and other affiliated
brokers and dealers. In order for an affiliated broker or dealer to effect any
portfolio transactions on an exchange for the Fund, the commissions, fees or
other remuneration received by the affiliated broker or dealer 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 the affiliated broker or dealer 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, including the Independent Trustees, have adopted procedures which are
reasonably designed to provide that any commissions, fees or other remuneration
paid to an affiliated broker or dealer are consistent with the foregoing
standard. The Fund does not reduce the management fee it pays to the Investment
Manager by any amount of the brokerage commissions it may pay to an affiliated
broker or dealer.
 
    During the fiscal years ended December 31, 1996, 1997 and 1998, the Fund
paid no brokerage commissions to an affiliated broker or dealer.
 
C. BROKERAGE SELECTION
 
    The policy of the Fund regarding purchases and sales of securities for its
portfolio is that primary consideration will be given to obtaining the most
favorable prices and efficient executions of transactions.
 
    In seeking to implement the Fund's policies, the Investment Manager effects
transactions with those brokers and dealers who the Investment Manager believes
provide the most favorable prices and are capable of providing efficient
executions. If the Investment Manager believes the prices and executions are
obtainable from more than one broker or dealer, it may give consideration to
placing portfolio transactions with those brokers and dealers who also furnish
research and other services to the Fund or the Investment Manager. The services
may include, but are not limited to, any one or more of the following:
information as to the availability of securities for purchase or sale;
statistical or factual information or opinions pertaining to investment; wire
services; and appraisals or evaluations of portfolio securities.
 
    The information and services received by the Investment Manager from brokers
and dealers may be of benefit to the Investment Manager in the management of
accounts of some of its other clients and may not in all cases benefit the Fund
directly. While the receipt of such information and services is useful in
 
                                       25
<PAGE>
varying degrees and would generally reduce the amount of research or services
otherwise performed by the Investment Manager and thereby reduce its expenses,
it is of indeterminable value and the Fund does not reduce the management fee it
pays to the Investment Manager by any amount that may be attributable to the
value of such services.
 
    Subject to the principle of obtaining best price and execution, the
Investment Manager may consider a broker-dealer's sales of shares of the Fund as
a factor in selecting from among those broker-dealers qualified to provide
comparable prices and execution on the Fund's portfolio transactions. The Fund
does not, however, require a broker-dealer to sell shares of the Fund in order
for it to be considered to execute portfolio transactions, and will not enter
into any arrangement whereby a specific amount or percentage of the Fund's
transactions will be directed to a broker which sells shares of the Fund to
customers. The Trustees review, periodically, the allocation of brokerage orders
to monitor the operation of these policies.
 
    The Investment Manager currently serves as investment manager to a number of
clients, including other investment companies, and may in the future act as
investment manager or advisor to others. It is the practice of the Investment
Manager to cause purchase and sale transactions to be allocated among the Fund
and others whose assets it manages in such manner as it deems equitable. In
making such allocations among the Fund and other client accounts, various
factors may be considered, including the respective investment objectives, the
relative size of portfolio holdings of the same or comparable securities, the
availability of cash for investment, the size of investment commitments
generally held and the opinions of the persons responsible for managing the
portfolios of the Fund and other client accounts. In the case of certain initial
and secondary public offerings, the Investment Manager utilizes a pro rata
allocation process based on the size of the Morgan Stanley Dean Witter Funds
involved and the number of shares available from the public offering.
 
D. DIRECTED BROKERAGE
 
    During the fiscal year ended December 31, 1998, the Fund did not pay any
brokerage commissions to brokers because of research services provided.
 
E. REGULAR BROKER-DEALERS
 
    During the fiscal year ended December 31, 1998, the Fund did not purchase
securities issued by brokers or dealers that were among the ten brokers or the
ten dealers which executed transactions for or with the Fund in the largest
dollar amounts during the year. At December 31, 1998, the Fund did not own any
securities issued by any of such issuers.
 
VII. CAPITAL STOCK AND OTHER SECURITIES
- --------------------------------------------------------------------------------
 
    The shareholders of the Fund are entitled to a full vote for each full share
of beneficial interest held. The Fund is authorized to issue an unlimited number
of shares of beneficial interest. All shares of beneficial interest of the Fund
are of $0.01 par value and are equal as to earnings, assets and voting
privileges.
 
    The Fund's 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. The Trustees have not presently authorized any such
additional series or Classes of shares other than as set forth in the
PROSPECTUS.
 
    The Fund is not required to hold annual meetings of shareholders and in
ordinary circumstances the Fund 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 Investment Company Act or the Declaration of
Trust. Under certain circumstances, the Trustees may be removed by action of the
Trustees or by the shareholders.
 
                                       26
<PAGE>
    Under Massachusetts law, shareholders of a business trust may, under certain
limited circumstances, be held personally liable as partners for the obligations
of the Fund. However, the Declaration of Trust contains an express disclaimer of
shareholder liability for acts or obligations of the Fund, requires that notice
of such Fund obligations include such disclaimer, and provides for
indemnification out of the Fund's property for any shareholder held personally
liable for the obligations of the Fund. Thus, the risk of a shareholder
incurring financial loss on account of shareholder liability is limited to
circumstances in which the Fund itself would be unable to meet its obligations.
Given the above limitations on shareholder personal liability, and the nature of
the Fund's assets and operations, the possibility of the Fund being unable to
meet its obligations is remote and thus, in the opinion of Massachusetts counsel
to the Fund, the risk to Fund shareholders of personal liability is remote.
 
    All of the Trustees have been elected by the shareholders of the Fund, most
recently at a Special Meeting of Shareholders held on May 21, 1997. 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 the Fund.
 
VIII. PURCHASE, REDEMPTION AND PRICING OF SHARES
- --------------------------------------------------------------------------------
 
A. PURCHASE/REDEMPTION OF SHARES
 
    Information concerning how Fund shares are offered to the public (and how
they are redeemed and exchanged) is provided in the Fund's PROSPECTUS.
 
    TRANSFER AGENT AS AGENT.  With respect to the redemption or repurchase of
Fund shares, the application of proceeds to the purchase of new shares in the
Fund or any other Morgan Stanley Dean Witter Funds and the general
administration of the exchange privilege, the Transfer Agent acts as agent for
the Distributor and for the shareholder's authorized broker-dealer, if any, in
the performance of such functions. With respect to exchanges, redemptions or
repurchases, the Transfer Agent shall be liable for its own negligence and not
for the default or negligence of its correspondents or for losses in transit.
The Fund shall not be liable for any default or negligence of the Transfer
Agent, the Distributor or any authorized broker-dealer.
 
    The Distributor and any authorized broker-dealer have appointed the Transfer
Agent to act as their agent in connection with the application of proceeds of
any redemption of Fund shares to the purchase of shares of any other Morgan
Stanley Dean Witter Fund and the general administration of the exchange
privilege. No commission or discounts will be paid to the Distributor or any
authorized broker-dealer for any transaction pursuant to the exchange privilege.
 
    REDEMPTIONS.  A check drawn by a shareholder against his or her account in
the Fund constitutes a request for redemption of a number of shares sufficient
to provide proceeds equal to the amount of the check. Payment of the proceeds
will normally be made on the next business day after receipt by the Transfer
Agent of the check in proper form. If a check is presented for payment to the
Transfer Agent by a shareholder or payee in person, the Transfer Agent will make
payment by means of a check drawn on the Fund's account or, in the case of a
shareholder payee, to the shareholder's predesignated bank account, but will not
make payment in cash.
 
B. OFFERING PRICE
 
    The price of Fund shares, called "net asset value," is based on the value of
the Fund's portfolio securities.
 
    The Fund utilizes the amortized cost method in valuing its portfolio
securities for purposes of determining the net asset value of its shares. The
Fund 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
 
                                       27
<PAGE>
valuing a security at its cost at the time of purchase 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
Fund would receive if it sold the investment. During such periods, the yield to
investors in the Fund may differ somewhat from that obtained in a similar
company which uses market-to-market values for all of 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 Fund 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 use of the amortized cost method to value the portfolio securities of
the Fund 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
Trustees are obligated, as a particular responsibility within the overall duty
of care owed to the Fund's shareholders, to establish procedures reasonably
designed, taking into account current market conditions and the Fund'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) the
procedures include (i) 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 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, withholding dividends or, as provided by the Declaration of Trust,
reducing the number of outstanding shares of the Fund) 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 method of valuation.
 
    Generally, for purposes of the procedures adopted under the Rule, the
maturity of a portfolio security is deemed to be the period remaining
(calculated from the trade date or such other date on which the Fund's interest
in the instrument is subject to market action) until the date on which in
accordance with the terms of the security the principal amount must
unconditionally be paid, or in the case of a security called for redemption, the
date on which the redemption payment must be made.
 
    A variable rate security 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. A floating rate security 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 "NRSRO" is a nationally recognized statistical rating organization. The
term "Requisite NRSROs" means (i) any two NRSROs that have issued a rating with
respect to a security or class of debt obligations of an issuer, or (ii) if only
one NRSRO has issued a rating with respect to such security or issuer at the
time a fund purchases or rolls over the security, that NRSRO.
 
    An Eligible Security is generally defined in the Rule to mean (i) a rated
security with a remaining maturity of 397 calendar days or less that has
received a rating from the Requisite NRSROs in one of the two highest short-term
rating categories (within which there may be sub-categories or gradations
indicating relative standing); or (ii) An Unrated Security that is of comparable
quality to a security meeting the requirements of (1) above, as determined by
Trustees; (iii) In addition, in the case of a security that is subject to a
Demand Feature or Guarantee: (A) The Guarantee has received a rating from
 
                                       28
<PAGE>
an NRSRO or the Guarantee is issued by a guarantor that has received a rating
from an NRSRO with respect to a class of debt obligations (or any debt
obligation within that class) that is comparable in priority and security to the
Guarantee, unless: (1) the Guarantee is issued by a person that directly or
indirectly, controls, is controlled by or is under a common control with the
issuer of the security subject to the Guarantee (other than a sponsor or a
Special Purpose Entity with respect to an Asset Backed Security: (2) the
security subject to the Guarantee is a repurchase agreement that is
Collateralized Fully; or (3) the Guarantee itself is a Government Security and
(B) the issuer of the Demand Feature, or another institution, has undertaken
promptly to notify the holder of the security in the event the Demand Feature or
Guarantee is substituted with another Demand Feature or Guarantee (if such
substitution is permissible under the terms of the Demand Feature or Guarantee).
The Fund will limit its investments to securities that meet the requirements for
Eligible Securities.
 
    As permitted by the Rule, the Trustees have delegated to the Fund's
Investment Manager 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 Fund 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,
with respect to 75% of its total assets 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 that have been determined to be of comparable
quality: (i) no more than 5% in the aggregate of the Fund'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 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 Fund 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 Fund
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 Fund will
invest its available cash in such a manner as to reduce such maturity to 90 days
or less a soon as is reasonably practicable.
 
    If the Trustees determine that it is no longer in the best interests of the
Fund and its shareholders to maintain a stable price of $1 per share or if the
Trustees believe that maintaining such price no longer reflects a market-based
net asset value per share, the Trustees have the right to change from an
amortized cost basis of valuation to valuation based on market quotations. The
Fund will notify shareholders of the Fund of any such change.
 
IX. TAXATION OF THE FUND AND SHAREHOLDERS
- --------------------------------------------------------------------------------
 
    The Fund generally will make three basic types of distributions: tax exempt
dividends, ordinary dividends and long-term capital gain distributions. These
types of distributions are reported differently on a shareholder's income tax
return and they are also subject to different rates of tax. The tax treatment of
the investment activities of the Fund will affect the amount and timing and
character of the distributions made by the Fund. Shareholders are urged to
consult their own tax professionals regarding specific questions as to federal,
state or local taxes.
 
                                       29
<PAGE>
    INVESTMENT COMPANY TAXATION. The Fund intends to remain qualified as a
regulated investment company under Subchapter M of the Internal Revenue Code of
1986. As such, the Fund will not be subject to federal income tax on its net
investment income and capital gains, if any, to the extent that it distributes
such income and capital gains to its shareholders.
 
    The Fund generally intends to distribute sufficient income and gains so that
the Fund will not pay corporate income tax on its earnings. The Fund also
generally intends to distribute to its shareholders in each calendar year a
sufficient amount of ordinary income and capital gains to avoid the imposition
of a 4% excise tax. However, the Fund may instead determine to retain all or
part of any ordinary income or capital gains in any year for reinvestment. In
such event, the Fund will pay federal income tax (and possibly excise tax) on
such retained gains.
 
    Gains or losses on sales of securities by the Fund will be long-term capital
gains or losses if the securities have a tax holding period of more than one
year. Gains or losses on the sale of securities with a tax holding period of one
year or less will be short-term gains or losses.
 
    In computing net investment income, the Fund will amortize any premiums and
original issue discounts on securities owned, if applicable. Capital gains or
losses realized upon sale or maturity of such securities will be based on their
amortized cost.
 
    All or a portion of any of the Fund's gain from tax-exempt obligations
purchased at a market discount may be treated as ordinary income rather than
capital gain.
 
    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 enacted, the availability of municipal
securities for investment by the Fund could be affected. In that event, the Fund
would re-evaluate its investment objective and policies.
 
    TAXATION OF DIVIDENDS AND DISTRIBUTIONS.  The Fund 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 the value of its assets in
tax-exempt securities. An exempt-interest dividend is that part of the dividend
distributions made by the Fund which consists of interest received by the Fund
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.
 
    The Fund intends to invest a portion of its assets in certain "private
activity bonds". As a result, a portion of the exempt-interest dividends paid by
the Fund will be an item of tax preference to shareholders subject to the
alternative minimum tax. 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 alternative minimum
taxable income.
 
    Shareholders will be subject to federal income tax on dividends paid from
interest income derived from taxable securities and on distributions of net
short-term capital gains. Such 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 in cash. Since
the Fund's income is expected to be derived entirely from interest rather than
dividends, it is anticipated that no portion of such dividend distributions will
be eligible for the federal dividends received deduction available to
corporations.
 
    Shareholders are generally taxed on any ordinary dividend or capital gain
distributions from the Fund in the year they are actually distributed. However,
if any such dividends or distributions are
 
                                       30
<PAGE>
declared in October, November or December and paid in January then such amounts
will be treated for tax purposes as received by the shareholders on December 31,
to shareholders of record of such month.
 
    Shareholders who are not citizens or residents of the United States and
certain foreign entities may be subject to withholding of United States tax on
distributions made by the Fund of any taxable interest income and short term
capital gains.
 
    After the end of each calendar year, shareholders will be sent full
information on their dividends and capital gain distributions for tax purposes,
including the portion taxable as ordinary income, the portion taxable as
long-term capital gains and the percentage of any distributions which constitute
an item of tax preference for purposes of the alternative minimum tax.
 
    PURCHASES AND REDEMPTIONS AND EXCHANGES OF FUND SHARES.  Any dividend or
capital gains distribution received by a shareholder from the Fund will have the
effect of reducing the net asset value of the shareholder's stock in the Fund by
the exact amount of the dividend or capital gains distribution. Furthermore,
capital gains distributions and some portion of the dividends may be subject to
federal income taxes. If the net asset value of the shares should be reduced
below a shareholder's cost as a result of the payment of dividends or the
distribution of realized long-term capital gains, such payment or distribution
would be in part a return of the shareholder's investment but nonetheless would
be taxable to the shareholder. Therefore, an investor should consider the tax
implications of purchasing Fund shares immediately prior to a distribution
record date.
 
    In general, a sale of shares results in capital gain or loss, and for
individual shareholders, is taxable at a federal rate dependent upon the length
of time the shares were held. A redemption of a shareholder's Fund shares is
normally treated as a sale for tax purposes. Fund shares held for a period of
one year or less will, for tax purposes, generally result in short-term gains or
losses and those held for more than one year generally result in long-term gain
or loss. Any loss realized by shareholders upon a redemption of shares within
six months of the date of their purchase will be treated as a long-term capital
loss to the extent of any distributions of net long-term capital gains with
respect to such shares during the six-month period.
 
    Gain or loss on the sale or redemption of shares in the Fund is measured by
the difference between the amount received and the tax basis of the shares.
Shareholders should keep records of investments made (including shares acquired
through reinvestment of dividends and distributions) so they can compute the tax
basis of their shares. Under certain circumstances a shareholder may compute and
use an average cost basis in determining the gain or loss on the sale or
redemption of shares.
 
    Exchanges of Fund shares for shares of another fund, including shares of
other Morgan Stanley Dean Witter Funds, are also subject to similar tax
treatment. Such an exchange is treated for tax purposes as a sale of the
original shares in the first fund, followed by the purchase of shares in the
second fund.
 
    If a shareholder realizes a loss on the redemption or exchange of a fund's
shares and reinvests in that fund's shares within 30 days before or after the
redemption or exchange, the transactions may be subject to the "wash sale"
rules, resulting in a postponement of the recognition of such loss for tax
purposes.
 
    Interest on indebtedness incurred by shareholders to purchase or carry
shares of the Fund 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 Fund. "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.
 
                                       31
<PAGE>
CALIFORNIA STATE TAX
 
    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 or in U.S.
obligations which 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.
 
    For California personal income tax purposes, the shareholders of the Fund
will not be subject to tax, or receive a credit for taxes paid by the Fund, 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 Fund,
will not be deductible by the investor for state 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 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.
 
X. UNDERWRITERS
- --------------------------------------------------------------------------------
 
    The Fund's shares are offered to the public on a continuous basis. The
Distributor, as the principal underwriter of the shares, has certain obligations
under the Distribution Agreement concerning the distribution of the shares.
These obligations and the compensation the Distributor receives are described
above in the sections titled "Principal Underwriter" and "Rule 12b-1 Plans."
 
XI. CALCULATION OF PERFORMANCE DATA
- --------------------------------------------------------------------------------
 
   
    The Fund's current yield for the seven days ending December 31, 1998 was
2.62%. The effective annual yield on December 31, 1998 was 2.66% assuming daily
compounding.
    
 
    The Fund'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 Fund 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 Fund'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 Fund 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.
 
                                       32
<PAGE>
    The yields quoted in any advertisement or other communication should not be
considered a representation of the yields of the Fund 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 Fund and changes in interest rates on
such investments, but also on changes in the Fund's expenses during the period.
 
    Yield information may be useful in reviewing the performance of the Fund 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 Fund's yield fluctuates.
 
   
    Based upon a combined Federal and California personal income tax bracket of
45.22%, the Fund's tax-equivalent yield for the seven days ending December 31,
1998, was 4.78%.
    
 
    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
Fund that is not tax-exempt. The Fund may also advertise the growth of
hypothetical investments of $10,000, $50,000 and $100,000 in shares of the Fund
by adding the sum of all distributions on 10,000, 50,000 or 100,000 shares of
the Fund since inception to $10,000, $50,000 and $100,000, as the case may be.
Investments of $10,000, $50,000 and $100,000 in the Fund at inception would have
grown to $14,018, $70,090 and $140,180, respectively, at December 31, 1998.
 
XII. FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
 
   
    EXPERTS.  The financial statements of the Fund for the fiscal year ended
December 31, 1998 are included herein in reliance on the report of
PricewaterhouseCoopers LLP, independent accountants, and on the authority of
that firm as experts in auditing and accounting.
    
 
                                     *****
 
    This STATEMENT OF ADDITIONAL INFORMATION and the PROSPECTUS do not contain
all of the information set forth in the REGISTRATION STATEMENT the Fund has
filed with the SEC. The complete REGISTRATION STATEMENT may be obtained from the
SEC.
 
                                       33
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1998
    
 
   
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT IN                                                                                  COUPON  DEMAND
THOUSANDS                                                                                  RATE+   DATE*       VALUE
- -----------------------------------------------------------------------------------------------------------------------
<C>        <S>                                                                             <C>    <C>       <C>
           CALIFORNIA TAX-EXEMPT SHORT-TERM VARIABLE RATE MUNICIPAL OBLIGATIONS (66.5%)
$ $4,920   Alameda-Contra Costa Schools Financing Authority, Capital Improvements Ser F
             COPs........................................................................  3.75%  01/08/99  $ 4,920,000
   2,000   California Economic Development Financing Authority, California Independent
             System Operator Corp 1998 Ser C.............................................  5.15   01/04/99    2,000,000
           California Educational Facilities Authority,
  10,300     California Institute of Technology Ser 1994.................................  3.65   01/08/99   10,300,000
   8,275     Stanford University Ser L-2.................................................  3.65   01/08/99    8,275,000
           California Health Facilities Financing Authority,
   4,780     Catholic Healthcare West 1997 Ser B (MBIA)..................................  3.60   01/08/99    4,780,000
   6,000     Children's Hospital of Orange County Ser 1991 (MBIA)........................  3.60   01/08/99    6,000,000
   8,000     Memorial Health Services 1994 Ser...........................................  3.90   01/08/99    8,000,000
   9,400     St Francis Medical Center 1995 Ser E (MBIA).................................  3.30   01/08/99    9,400,000
   2,275     St Joseph Health System Ser 1985A...........................................  5.10   01/08/99    2,275,000
           California Pollution Control Financing Authority,
   1,000     Chevron USA Inc Ser 1983....................................................  3.10   11/15/99    1,000,345
   5,000     Chevron USA Inc Ser 1984B...................................................  3.70   06/15/99    5,000,901
  13,800     Pacific Gas & Electric Co 1996 Ser F & 1997 Ser A...........................  5.00   01/04/99   13,800,000
  10,000   California Public Capital Improvements Financing Authority, Pooled Ser 1988
             C...........................................................................  3.10   03/15/99   10,000,000
           California Statewide Communities Development Authority,
   3,500     House Ear Institute 1993 Ser A COPs.........................................  5.00   01/04/99    3,500,000
   5,000     St Joseph Health System COPs................................................  3.80   01/08/99    5,000,000
  10,000   Foothill/Eastern Transportation Corridor Agency, Toll Road Ser 1995C..........  3.60   01/08/99   10,000,000
   8,100   Los Angeles, Multi-family 1985 Ser K..........................................  3.50   01/08/99    8,100,000
   5,000   Los Angeles County Metropolitan Transportation Authority, Prop C Sales Tax
             Refg Ser 1993-A (MBIA)......................................................  3.75   01/08/99    5,000,000
  12,000   Metropolitan Water District of Southern California, Water 1997 Ser B & C......  3.65   01/08/99   12,000,000
   5,000   Monterey County Financing Authority, 1995 Ser A...............................  3.70   01/08/99    5,000,000
   9,500   Newport Beach, Hoag Memorial Hospital/Presbyterian 1996 Ser A & C.............  5.10   01/04/99    9,500,000
   5,000   Oakland Joint Powers Financing Authority, 1998 Ser A-2 (FSA)..................  3.65   01/08/99    5,000,000
   6,000   Rancho California Water District Financing Authority, Ser 1998A (FGIC)........  3.75   01/08/99    6,000,000
   7,840   Sacramento County, Administration Center & Courthouse Ser 1990 COPs...........  3.70   01/08/99    7,840,000
   3,800   San Bernardino County, 1996 County Center Refinancing COPs....................  3.75   01/08/99    3,800,000
   5,075   San Jacinto Unified School District, 1997 COPs (FSA)..........................  3.70   01/08/99    5,075,000
   7,000   Southern California Public Power Authority, Transmission Refg Sub 1991 Ser
             (AMBAC).....................................................................  3.65   01/08/99    7,000,000
 
           PUERTO RICO
  10,000   Puerto Rico Highway & Transportation Authority, Transportation 1998 Ser A
             (AMBAC).....................................................................  3.50   01/08/99   10,000,000
                                                                                                            -----------
 
           TOTAL CALIFORNIA TAX-EXEMPT SHORT-TERM VARIABLE RATE MUNICIPAL OBLIGATIONS
           (AMORTIZED COST $188,566,246 ).................................................................  188,566,246
                                                                                                            -----------
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       34
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1998, CONTINUED
    
 
   
<TABLE>
<CAPTION>
                                                                                                            YIELD
                                                                                                            TO
                                                                                                            MATURITY
                                                                                                             ON
PRINCIPAL                                                                                                   DATE
AMOUNT IN                                                                                  COUPON MATURITY   OF
THOUSANDS                                                                                  RATE     DATE    PURCHASE    VALUE
- ------------------------------------------------------------------------------------------------------------------------------
<C>        <S>                                                                             <C>    <C>       <C>          <C>
           CALIFORNIA TAX-EXEMPT COMMERCIAL PAPER (25.8%)
$  4,000   California Pollution Control Financing Authority, Southern California Edison
             Co Ser 1985 A...............................................................  2.80%  02/17/99  2.80%  $ 4,000,000
   4,800   Contra Costa Water District, Ser A............................................  2.85   03/10/99  2.85     4,800,000
           East Bay Municipal Utility District,
   4,500     Water.......................................................................  3.00   02/09/99  3.00     4,500,000
   4,700     Water.......................................................................  3.00   02/11/99  3.00     4,700,000
   3,500     Water.......................................................................  2.80   02/23/99  2.80     3,500,000
           Los Angeles,
   4,000     Wastewater Ser 1997.........................................................  2.75   02/24/99  2.75     4,000,000
   3,500     Wastewater Ser 1997.........................................................  2.90   02/24/99  2.90     3,500,000
   3,500   Los Angeles County Metropolitan Transportation Authority, Sales Tax Ser A.....  2.70   03/09/99  2.70     3,500,000
           San Diego,
   5,000     San Diego Gas & Electric Co 1995 Ser B......................................  2.75   02/18/99  2.75     5,000,000
   4,000     San Diego Gas & Electric Co 1995 Ser A......................................  2.80   02/25/99  2.80     4,000,000
   5,300   San Diego County Regional Transportation Commission, Ser A....................  3.10   01/20/99  3.10     5,300,000
           San Diego County Water Authority,
   2,500     Ser # 1.....................................................................  3.05   01/21/99  3.05     2,500,000
   3,700     Ser # 1.....................................................................  2.85   02/08/99  2.85     3,700,000
   6,000     Ser # 1.....................................................................  2.90   04/08/99  2.90     6,000,000
           San Joaquin County Transportation Authority,
   5,000     Sales Tax Ser 1997..........................................................  2.70   01/28/99  2.70     5,000,000
   4,000     Sales Tax Ser 1997..........................................................  2.85   03/05/99  2.85     4,000,000
 
           PUERTO RICO
   5,000   Puerto Rico Government Development Bank, Ser 1996.............................  2.75   03/09/99  2.75     5,000,000
                                                                                                                   -----------
 
           TOTAL CALIFORNIA TAX-EXEMPT COMMERCIAL PAPER
           (AMORTIZED COST $73,000,000).........................................................................    73,000,000
                                                                                                                   -----------
 
           CALIFORNIA TAX-EXEMPT SHORT-TERM MUNICIPAL NOTES (8.2%)
   5,000   Alameda County, Ser 1998-99 TRANs dtd 07/08/98................................  4.50   07/07/99  3.60     5,022,245
   5,000   California School Cash Reserve Program Authority,
             1998 Pool Ser dtd 07/02/98..................................................  4.50   07/02/99  3.74     5,018,250
   5,000   Fresno County, 1998-99 TRANs, dtd 07/02/98....................................  4.00   07/01/99  3.59     5,009,796
   5,000   Marin County, 1998-99 TRANs, dtd 07/01/98.....................................  4.50   06/30/99  3.55     5,022,599
   3,000   San Francisco Unified School District, 1998 TRANs, dtd 09/03/98...............  4.50   09/22/99  3.40     3,023,224
                                                                                                                   -----------
 
           TOTAL CALIFORNIA TAX-EXEMPT SHORT-TERM MUNICIPAL NOTES
           (AMORTIZED COST $23,096,114).........................................................................    23,096,114
                                                                                                                   -----------
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       35
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1998, CONTINUED
    
 
   
<TABLE>
<CAPTION>
 
                                                                                                        VALUE
- -----------------------------------------------------------------------------------------------------------------
<C>        <S>                                                                             <C>    <C>       <C>          <C>
TOTAL INVESTMENTS
(AMORTIZED COST $284,662,360) (A).........................................................  100.5 % $$284,662,360
 
LIABILITIES IN EXCESS OF OTHER ASSETS.....................................................   (0.5)     (1,280,010)
                                                                                            ------  -------------
 
NET ASSETS................................................................................  100.0 % $ 283,382,350
                                                                                            ------  -------------
                                                                                            ------  -------------
</TABLE>
    
 
   
- ---------------------
 
COPs   Certificates of Participation.
TRANs  Tax Revenue Anticipation Notes.
  +    Rate shown is the rate in effect at December 31, 1998.
  *    Date on which the principal amount can be recovered through demand.
 (a)   Cost is the same for federal income tax purposes.
 
BOND INSURANCE:
AMBAC  AMBAC Indemnity Corporation.
FGIC   Financial Guaranty Insurance Company.
 FSA   Financial Security Assurance Inc.
MBIA   Municipal Bond Investors Assurance Corporation.
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       36
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
FINANCIAL STATEMENTS
    
 
   
STATEMENT OF ASSETS AND LIABILITIES
    
   
DECEMBER 31, 1998
    
 
   
<TABLE>
<S>                                                                                             <C>
ASSETS:
Investments in securities, at value
  (amortized cost $284,662,360)...............................................................  $284,662,360
Interest receivable...........................................................................     1,419,665
Prepaid expenses and other assets.............................................................        17,677
                                                                                                ------------
 
     TOTAL ASSETS.............................................................................   286,099,702
                                                                                                ------------
 
LIABILITIES:
Payable for:
    Shares of beneficial interest repurchased.................................................     2,326,364
    Investment management fee.................................................................       123,265
    Plan of distribution fee..................................................................        24,653
Payable to bank...............................................................................       153,669
Accrued expenses and other payables...........................................................        89,401
                                                                                                ------------
 
     TOTAL LIABILITIES........................................................................     2,717,352
                                                                                                ------------
 
     NET ASSETS...............................................................................  $283,382,350
                                                                                                ------------
                                                                                                ------------
 
COMPOSITION OF NET ASSETS:
Paid-in-capital...............................................................................  $283,382,247
Accumulated undistributed net investment income...............................................           103
                                                                                                ------------
 
     NET ASSETS...............................................................................  $283,382,350
                                                                                                ------------
                                                                                                ------------
 
NET ASSET VALUE PER SHARE,
  283,382,247 SHARES OUTSTANDING (UNLIMITED SHARES AUTHORIZED OF $.01 PAR VALUE)..............         $1.00
                                                                                                ------------
                                                                                                ------------
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       37
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
FINANCIAL STATEMENTS, CONTINUED
    
 
   
STATEMENT OF OPERATIONS
    
   
FOR THE YEAR ENDED DECEMBER 31, 1998
    
 
   
<TABLE>
<S>                                                                                             <C>
NET INVESTMENT INCOME:
 
INTEREST INCOME...............................................................................  $  9,448,988
                                                                                                ------------
 
EXPENSES
Investment management fee.....................................................................     1,479,199
Plan of distribution fee......................................................................       282,477
Transfer agent fees and expenses..............................................................       166,544
Professional fees.............................................................................        44,750
Shareholder reports and notices...............................................................        40,315
Trustees' fees and expenses...................................................................        18,919
Custodian fees................................................................................        14,971
Registration fees.............................................................................         7,635
Other.........................................................................................        10,420
                                                                                                ------------
 
     TOTAL EXPENSES...........................................................................     2,065,230
Less: expense offset..........................................................................       (14,958)
                                                                                                ------------
 
     NET EXPENSES.............................................................................     2,050,272
                                                                                                ------------
 
NET INVESTMENT INCOME.........................................................................  $  7,398,716
                                                                                                ------------
                                                                                                ------------
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       38
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
FINANCIAL STATEMENTS, CONTINUED
    
 
   
STATEMENT OF CHANGES IN NET ASSETS
    
 
   
<TABLE>
<CAPTION>
                                                                          FOR THE YEAR       FOR THE YEAR
                                                                              ENDED              ENDED
                                                                        DECEMBER 31, 1998  DECEMBER 31, 1997
- ------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>                <C>
 
INCREASE (DECREASE) IN NET ASSETS:
 
OPERATIONS:
Net investment income.................................................  $      7,398,716   $      7,497,660
 
Dividends from net investment income..................................        (7,398,744 )       (7,497,664 )
 
Net increase (decrease) from transactions in shares of beneficial
  interest............................................................        (3,618,367 )       27,410,403
                                                                        -----------------  -----------------
 
     NET INCREASE (DECREASE)..........................................        (3,618,395 )       27,410,399
 
NET ASSETS:
Beginning of period...................................................       287,000,745        259,590,346
                                                                        -----------------  -----------------
 
     END OF PERIOD
    (INCLUDING UNDISTRIBUTED NET INVESTMENT INCOME OF $103 AND $131,
    RESPECTIVELY).....................................................  $    283,382,350   $    287,000,745
                                                                        -----------------  -----------------
                                                                        -----------------  -----------------
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       39
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1998
    
 
   
1. ORGANIZATION AND ACCOUNTING POLICIES
    
 
   
Morgan Stanley Dean Witter California Tax-Free Daily Income Trust (the "Fund"),
formerly Dean Witter California Tax-Free Daily Income Trust, is registered under
the Investment Company Act of 1940, as amended (the "Act"), as a diversified,
open-end management investment company. The Fund's investment objective is to
provide a high level of daily income which is exempt from federal and California
income tax, consistent with stability of principal and liquidity. The Fund was
organized as a Massachusetts business trust on April 25, 1988 and commenced
operations on July 22, 1988.
    
 
   
The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts and disclosures. Actual results could differ from
those estimates.
    
 
   
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). Realized gains and
losses on security transactions are determined by the identified cost method.
The Fund amortizes premiums and accretes discounts over the life of the
respective securities. Interest income is accrued daily.
    
 
   
C. FEDERAL INCOME TAX STATUS -- It is the Fund'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 nontaxable income to its
shareholders. Accordingly, no federal income tax provision is required.
    
 
   
D. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends and
distributions to shareholders as of the close of each business day.
    
 
   
2. INVESTMENT MANAGEMENT AGREEMENT
    
 
   
Pursuant to an Investment Management Agreement with Morgan Stanley Dean Witter
Advisors Inc. (the "Investment Manager"), formerly Dean Witter InterCapital
Inc., the Fund pays the Investment Manager a management fee, accrued daily and
payable monthly, by applying the following annual rates to the net assets of the
Fund determined as of the close of each business day: 0.50% to the portion of
the daily net assets not exceeding $500 million; 0.425% to the portion of the
daily net
    
 
                                       40
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1998, CONTINUED
    
 
   
assets exceeding $500 million but not exceeding $750 million; 0.375% to the
portion of the daily net assets exceeding $750 million but not exceeding $1
billion; 0.35% to the portion of the daily net assets exceeding $1 billion but
not exceeding $1.5 billion; 0.325% to the portion of the daily net assets
exceeding $1.5 billion but not exceeding $2 billion; 0.30% to the portion of the
daily net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275% to
the portion of the daily net assets exceeding $2.5 billion but not exceeding $3
billion; and 0.25% to the portion of the daily net assets exceeding $3 billion.
    
 
   
Under the terms of the Agreement, in addition to managing the Fund's
investments, the Investment Manager maintains certain of the Fund's books and
records and furnishes, at its own expense, office space, facilities, equipment,
clerical, bookkeeping and certain legal services and pays the salaries of all
personnel, including officers of the Fund 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 Fund.
    
 
   
3. PLAN OF DISTRIBUTION
    
 
   
Morgan Stanley Dean Witter Distributors Inc. (the "Distributor"), an affiliate
of the Investment Manager, is the distributor of the Fund's shares and, in
accordance with a Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under
the Act, finances certain expenses in connection therewith.
    
 
   
Under the Plan, the Distributor bears the expense of all promotional and
distribution related activities on behalf of the Fund, except for expenses that
the Trustees determine to reimburse, as described below. The following
activities and services may be provided by the Distributor and other
broker-dealers under the Plan: (1) compensation to, and expenses of, Morgan
Stanley Dean Witter Financial Advisors and other selected broker-dealers; (2)
sales incentives and bonuses to sales representatives and to marketing personnel
in connection with promoting sales of the Fund's shares; (3) expenses incurred
in connection with promoting sales of the Fund's 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 Fund is authorized to reimburse the Distributor for specific expenses the
Distributor incurs or plans to incur in promoting the distribution of the Fund'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 Fund's average
daily net assets during the month. Expenses incurred by the Distributor
    
 
                                       41
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1998, CONTINUED
    
 
   
pursuant to the Plan in any fiscal year will not be reimbursed by the Fund
through payments accrued in any subsequent fiscal year. For the year ended
December 31, 1998, the distribution fee was accrued at the annual rate of 0.10%.
    
 
   
4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES
    
 
   
The cost of purchases and proceeds from sales/maturities of portfolio securities
for the year ended December 31, 1998 aggregated $568,354,080 and $569,680,000,
respectively.
    
 
   
Morgan Stanley Dean Witter Trust FSB, an affiliate of the Investment Manager and
Distributor, is the Fund's transfer agent. At December 31, 1998, the Fund had
transfer agent fees and expenses payable of approximately $9,100.
    
 
   
The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Trustees of the Fund who will have served as independent
Trustees 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 costs for the year ended December 31, 1998
included in Trustees' fees and expenses in the Statement of Operations amounted
to $5,981. At December 31, 1998, the Fund had an accrued pension liability of
$51,038 which is included in accrued expenses in the Statement of Assets and
Liabilities.
    
 
   
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
                                          DECEMBER 31, 1998    DECEMBER 31, 1997
                                          ------------------   ------------------
<S>                                       <C>                  <C>
Shares sold.............................       526,385,736          504,677,431
Shares issued in reinvestment of
 dividends..............................         7,398,744            7,497,664
                                          ------------------   ------------------
                                               533,784,480          512,175,095
Shares repurchased......................      (537,402,847)        (484,764,692)
                                          ------------------   ------------------
Net increase (decrease) in shares
 outstanding............................        (3,618,367)          27,410,403
                                          ------------------   ------------------
                                          ------------------   ------------------
</TABLE>
    
 
                                       42
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
FINANCIAL HIGHLIGHTS
    
 
   
Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:
    
 
   
<TABLE>
<CAPTION>
                             FOR THE YEAR ENDED DECEMBER 31,
                  ------------------------------------------------------
                    1998       1997       1996        1995       1994
- ------------------------------------------------------------------------
 
<S>               <C>        <C>        <C>        <C>         <C>
SELECTED PER SHARE DATA:
 
Net asset value,
 beginning of
 period.......... $    1.00  $    1.00  $    1.00  $     1.00  $    1.00
                  ---------  ---------  ---------  ----------  ---------
 
Net income from
 investments
 operations......     0.025      0.028      0.026       0.030      0.021
 
Less dividends
 from net
 investment
 income..........    (0.025)    (0.028)    (0.026)     (0.030)    (0.021)
                  ---------  ---------  ---------  ----------  ---------
 
Net asset value,
 end of period... $    1.00  $    1.00  $    1.00  $     1.00  $    1.00
                  ---------  ---------  ---------  ----------  ---------
                  ---------  ---------  ---------  ----------  ---------
 
TOTAL RETURN.....      2.54%      2.83%      2.68%       3.04%      2.17%
 
RATIOS TO AVERAGE
NET ASSETS:
Expenses.........      0.70%(1)      0.72%(1)      0.72%(1)       0.75%(1)      0.72%
 
Net investment
 income..........      2.50%      2.79%      2.63%       3.00%      2.13%
 
SUPPLEMENTAL DATA:
Net assets, end
 of period, in
 thousands.......  $283,382   $287,001   $259,590    $254,376   $217,079
</TABLE>
    
 
- ---------------------
 
   
(1)  Does not reflect the effect of expense offset of 0.01%.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
    
                                       43
<PAGE>
   
MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
    
   
REPORT OF INDEPENDENT ACCOUNTANTS
    
 
   
TO THE SHAREHOLDERS AND TRUSTEES
OF MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME 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 present fairly, in all
material respects, the financial position of Morgan Stanley Dean Witter
California Tax-Free Daily Income Trust (the "Fund"), formerly Dean Witter
California Tax-Free Daily Income Trust, at December 31, 1998, 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 five 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
Fund'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 at December 31, 1998 by correspondence with the
custodian, provide a reasonable basis for the opinion expressed above.
    
 
   
PricewaterhouseCoopers LLP
    
   
1177 AVENUE OF THE AMERICAS
    
   
NEW YORK, NEW YORK 10036
FEBRUARY 5, 1999
    
 
   
                      1998 FEDERAL TAX NOTICE (UNAUDITED)
    
 
   
       For the year ended December 31, 1998, all of the Fund's dividends
       from net investment income were exempt interest dividends,
       excludable from gross income for Federal income tax purposes.
    
 
                                       44
<PAGE>
         MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
                                          
                              PART C OTHER INFORMATION

Item 23.  EXHIBITS
     
        6. Retirement Plan for Non-Interested Trustees or Directors.
     
       10. Consent of Independent Accountants.
     
       14. Financial Data Schedule.
     
       All other exhibits were previously filed via EDGAR and are hereby
       incorporated by reference.

Item 24. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH THE REGISTRANT

       None

Item 25. INDEMNIFICATION

     Pursuant to Section 5.3 of the Registrant's Declaration of Trust and under
Section 4.8 of the Registrant's By-Laws, the indemnification of the Registrant's
trustees, officers, employees and agents is permitted if it is determined that
they acted under the belief that their actions were in or not opposed to the
best interest of the Registrant, and, with respect to any criminal proceeding,
they had reasonable cause to believe their conduct was not unlawful.  In
addition, indemnification is permitted only if it is determined that the actions
in question did not render them liable by reason of willful misfeasance, bad
faith or gross negligence in the performance of their duties or by reason of
reckless disregard of their obligations and duties to the Registrant.  Trustees,
officers, employees and agents will be indemnified for the expense of litigation
if it is determined that they are entitled to indemnification against any
liability established in such litigation.  The Registrant may also advance money
for these expenses provided that they give their undertakings to repay the
Registrant unless their conduct is later determined to permit indemnification.

     Pursuant to Section 5.2 of the Registrant's Declaration of Trust and
paragraph 7 of the Registrant's Investment Management Agreement, neither the
Investment Manager nor any trustee, officer, employee or agent of the Registrant
shall be liable for any action or failure to act, except in the case of bad
faith, willful misfeasance, gross negligence or reckless disregard of duties to
the Registrant.

     Insofar as indemnification for liabilities arising under the Securities 
Act of 1933 (the "Act") may be permitted to trustees, officers and 
controlling persons of the Registrant pursuant to the foregoing provisions or 
otherwise, the Registrant has been advised that in the opinion of the  
Securities and Exchange Commission such indemnification is against public 
policy as expressed in the Act and is, therefore, unenforceable.  In the 
event that a claim for indemnification against such liabilities (other than 
the payment by the Registrant of expenses incurred or paid by a trustee, 
officer, or controlling person of the Registrant in connection with the 
successful defense of any action, suit or proceeding) is asserted against the 
Registrant by 

<PAGE>

such trustee, officer or controlling person in connection with the shares being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act, and will be governed by the final adjudication
of such issue.

     The Registrant hereby undertakes that it will apply the indemnification
provision of its by-laws in a manner consistent with Release 11330 of the
Securities and Exchange Commission under the Investment Company Act of 1940, so
long as the interpretation of Sections 17(h) and 17(i) of such Act remains in
effect.

     Registrant, in conjunction with the Investment Manager, Registrant's
Trustees, and other registered investment management companies managed by the
Investment Manager, maintains insurance on behalf of any person who is or was a
Trustee, officer, employee, or agent of Registrant, or who is or was serving at
the request of Registrant as a trustee, director, officer, employee or agent of
another trust or corporation, against any liability asserted against him and
incurred by him or arising out of his position.  However, in no event will
Registrant maintain insurance to indemnify any such person for any act for which
Registrant itself is not permitted to indemnify him.

Item 26. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISOR

     See "The Fund and Its Management" in the Prospectus regarding the business
of the investment advisor.  The following information is given regarding
officers of Morgan Stanley Dean Witter Advisors Inc. ("MSDW Advisors").  MSDW
Advisors is a wholly-owned subsidiary of Morgan Stanley Dean Witter & Co.  The
principal address of the Morgan Stanley Dean Witter Funds is Two World Trade
Center, New York, New York 10048.

     The term "Morgan Stanley Dean Witter Funds" refers to the following
registered investment companies:

CLOSED-END INVESTMENT COMPANIES
(1)  Morgan Stanley Dean Witter California Insured Municipal Income Trust
(2)  Morgan Stanley Dean Witter California Quality Municipal Securities
(3)  Morgan Stanley Dean Witter Government Income Trust
(4)  Morgan Stanley Dean Witter High Income Advantage Trust
(5)  Morgan Stanley Dean Witter High Income Advantage Trust II
(6)  Morgan Stanley Dean Witter High Income Advantage Trust III
(7)  Morgan Stanley Dean Witter Income Securities Inc.
(8)  Morgan Stanley Dean Witter Insured California Municipal Securities
(9)  Morgan Stanley Dean Witter Insured Municipal Bond Trust
(10) Morgan Stanley Dean Witter Insured Municipal Income Trust
(11) Morgan Stanley Dean Witter Insured Municipal Securities
(12) Morgan Stanley Dean Witter Insured Municipal Trust
(13) Morgan Stanley Dean Witter Municipal Income Opportunities Trust
(14) Morgan Stanley Dean Witter Municipal Income Opportunities Trust II
(15) Morgan Stanley Dean Witter Municipal Income Opportunities Trust III
(16) Morgan Stanley Dean Witter Municipal Income Trust
(17) Morgan Stanley Dean Witter Municipal Income Trust II
(18) Morgan Stanley Dean Witter Municipal Income Trust III
(19) Morgan Stanley Dean Witter Municipal Premium Income Trust


<PAGE>

(20) Morgan Stanley Dean Witter New York Quality Municipal Securities
(21) Morgan Stanley Dean Witter Prime Income Trust
(22) Morgan Stanley Dean Witter Quality Municipal Income Trust
(23) Morgan Stanley Dean Witter Quality Municipal Investment Trust
(24) Morgan Stanley Dean Witter Quality Municipal Securities

OPEN-END INVESTMENT COMPANIES
(1)  Active Assets California Tax-Free Trust
(2)  Active Assets Government Securities Trust
(3)  Active Assets Money Trust
(4)  Active Assets Tax-Free Trust
(5)  Morgan Stanley Dean Witter Aggressive Equity Fund
(6)  Morgan Stanley Dean Witter American Value Fund
(7)  Morgan Stanley Dean Witter Balanced Growth Fund
(8)  Morgan Stanley Dean Witter Balanced Income Fund
(9)  Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
(10) Morgan Stanley Dean Witter California Tax-Free Income Fund
(11) Morgan Stanley Dean Witter Capital Growth Securities
(12) Morgan Stanley Dean Witter Competitive Edge Fund, "BEST IDEAS PORTFOLIO"
(13) Morgan Stanley Dean Witter Convertible Securities Trust
(14) Morgan Stanley Dean Witter Developing Growth Securities Trust
(15) Morgan Stanley Dean Witter Diversified Income Trust 
(16) Morgan Stanley Dean Witter Dividend Growth Securities Inc.
(17) Morgan Stanley Dean Witter Equity Fund
(18) Morgan Stanley Dean Witter European Growth Fund Inc.
(19) Morgan Stanley Dean Witter Federal Securities Trust
(20) Morgan Stanley Dean Witter Financial Services Trust
(21) Morgan Stanley Dean Witter Fund of Funds
(22) Morgan Stanley Dean Witter Global Dividend Growth Securities
(23) Morgan Stanley Dean Witter Global Utilities Fund
(24) Morgan Stanley Dean Witter Growth Fund
(25) Morgan Stanley Dean Witter Hawaii Municipal Trust
(26) Morgan Stanley Dean Witter Health Sciences Trust
(27) Morgan Stanley Dean Witter High Yield Securities Inc.
(28) Morgan Stanley Dean Witter Income Builder Fund
(29) Morgan Stanley Dean Witter Information Fund
(30) Morgan Stanley Dean Witter Intermediate Income Securities
(31) Morgan Stanley Dean Witter International SmallCap Fund
(32) Morgan Stanley Dean Witter Japan Fund
(33) Morgan Stanley Dean Witter Limited Term Municipal Trust
(34) Morgan Stanley Dean Witter Liquid Asset Fund Inc.
(35) Morgan Stanley Dean Witter Market Leader Trust
(36) Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities
(37) Morgan Stanley Dean Witter Mid-Cap Growth Fund
(38) Morgan Stanley Dean Witter Multi-State Municipal Series Trust
(39) Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
(40) Morgan Stanley Dean Witter New York Municipal Money Market Trust
(41) Morgan Stanley Dean Witter New York Tax-Free Income Fund
(42) Morgan Stanley Dean Witter Pacific Growth Fund Inc.
(43) Morgan Stanley Dean Witter Precious Metals and Minerals Trust
(44) Morgan Stanley Dean Witter Real Estate Fund


<PAGE>

(45) Morgan Stanley Dean Witter S&P 500 Index Fund
(46) Morgan Stanley Dean Witter S&P 500 Select Fund
(47) Morgan Stanley Dean Witter Select Dimensions Investment Series
(48) Morgan Stanley Dean Witter Select Municipal Reinvestment Fund
(49) Morgan Stanley Dean Witter Short-Term Bond Fund
(50) Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
(51) Morgan Stanley Dean Witter Special Value Fund
(52) Morgan Stanley Dean Witter Strategist Fund 
(53) Morgan Stanley Dean Witter Tax-Exempt Securities Trust
(54) Morgan Stanley Dean Witter Tax-Free Daily Income Trust
(55) Morgan Stanley Dean Witter U.S. Government Money Market Trust
(56) Morgan Stanley Dean Witter U.S. Government Securities Trust
(57) Morgan Stanley Dean Witter Utilities Fund
(58) Morgan Stanley Dean Witter Value-Added Market Series
(59) Morgan Stanley Dean Witter Value Fund
(60) Morgan Stanley Dean Witter Variable Investment Series
(61) Morgan Stanley Dean Witter World Wide Income Trust

The term "TCW/DW Funds" refers to the following registered investment companies:

OPEN-END INVESTMENT COMPANIES
(1)  TCW/DW Emerging Markets Opportunities Trust
(2)  TCW/DW Global Telecom Trust
(3)  TCW/DW Income and Growth Fund
(4)  TCW/DW Latin American Growth Fund
(5)  TCW/DW Mid-Cap Equity Trust
(6)  TCW/DW North American Government Income Trust
(7)  TCW/DW Small Cap Growth Fund
(8)  TCW/DW Total Return Trust

CLOSED-END INVESTMENT COMPANIES 
(1)  TCW/DW Term Trust 2000
(2)  TCW/DW Term Trust 2002 
(3)  TCW/DW Term Trust 2003

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       ------------------------------------------------

Mitchell M. Merin          President and Chief Operating Officer of Asset 
President, Chief           Management of Morgan Stanley Dean Witter & Co. 
Executive Officer and      ("MSDW); Chairman, Chief Executive Officer and
Director                   Director of Morgan Stanley Dean Witter 
                           Distributors Inc. ("MSDW Distributors") and Morgan 
                           Stanley Dean Witter Trust FSB ("MSDW Trust"); 
                           President, Chief Executive Officer and 
                           Director of Morgan Stanley Dean Witter Services 
                           Company Inc. ("MSDW Services"); Vice President of 
                           the Morgan Stanley Dean Witter Funds, TCW/DW Funds 
                           and Discover Brokerage Index Series; Executive 
                           Vice President and Director of Dean Witter 
                           Reynolds Inc. ("DWR"); Director of 
                           various MSDW subsidiaries.


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       -------------------------------------------------

Joseph J. McAlinden        Vice President of the Morgan Stanley Dean Witter
Executive Vice President   Funds and Discover Brokerage Index Series;Director 
and Chief Investment       of MSDW Trust.
Officer                    

Ronald E. Robison          Executive Vice President, Chief Administrative
Executive Vice President,  Officer and Director of MSDW Services; Vice 
Chief Administrative       President of the Morgan Stanley Dean Witter Funds,
Officer and Director       TCW/DW Funds and Discover 
                           Brokerage Index Series.

Edward C. Oelsner, III
Executive Vice President

John Van Heuvelen          President of MSDW Trust
Executive Vice President

Barry Fink                 Assistant Secretary of DWR; Senior Vice President,
Senior Vice President,     Secretary, General Counsel and Director of MSDW
Secretary, General         Services; Senior Vice President, Assistant
Counsel and Director       Secretary and Assistant General Counsel of MSDW
                           Distributors; Vice President, Secretary and General
                           Counsel of the Morgan Stanley Dean Witter Funds,
                           TCW/DW Funds and Discover Brokerage Index Series.

Peter M. Avelar            Vice President of various Morgan Stanley Dean Senior
Vice President             Witter Funds.

Mark Bavoso                Vice President of various Morgan Stanley Dean Senior
Vice President             Witter Funds.

Douglas Brown
Senior Vice President

Rosalie Clough
Senior Vice President
and Director of 
Marketing

Richard Felegy
Senior Vice President

Edward F. Gaylor           Vice President of various Morgan Stanley Dean Senior
Vice President             Witter Funds.


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       -------------------------------------------------

Robert S. Giambrone        Senior Vice President of MSDW Services, MSDW 
Senior Vice President      Distributors and MSDW Trust and Director of MSDW
                           Trust; Vice President of the Morgan Stanley Dean
                           Witter Funds, TCW/DW Funds and Discover Brokerage
                           Index Series. 

Rajesh K. Gupta            Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Kenton J. Hinchliffe       Vice President of various Morgan Stanley Dean Senior
Vice President             Witter Funds and Discover Brokerage Index Series.

Kevin Hurley               Vice President of various Morgan Stanley Dean Senior
Vice President             Witter Funds.

Margaret Iannuzzi
Senior Vice President

Jenny Beth Jones           Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Michelle Kaufman           Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

John B. Kemp, III          President of MSDW Distributors.
Senior Vice President

Anita H. Kolleeny          Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Jonathan R. Page           Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Ira N. Ross                Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Guy G. Rutherfurd, Jr.     Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Rochelle G. Siegel         Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

James Solloway
Senior Vice President

Jayne M. Stevlingson       Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       -------------------------------------------------

Paul D. Vance              Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Elizabeth A. Vetell        
Senior Vice President 
and Director of 
Shareholder 
Communication 

James F. Willison          Vice President of various Morgan Stanley Dean
Senior Vice President      Witter Funds.

Frank Bruttomesso          First Vice President and Assistant Secretary of
First Vice President and   MSDW Services; Assistant Secretary of MSDW Assistant
Secretary                  Distributors, the Assistant Morgan Stanley Dean 
                           Witter Funds, TCW/DW Funds and Discover Brokerage 
                           Index Series.

Toby Burroughs
First Vice President

Thomas F. Caloia           First Vice President and Assistant Treasurer of
First Vice President       MSDW Services; Assistant Treasurer of MSDW 
and Assistant              Distributors; Treasurer and Chief Financial and
Treasurer                  Accounting Officer of the Morgan Stanley Dean 
                           Witter Funds, TCW/DW Funds and Discover Brokerage 
                           Index Series..

Thomas Chronert            
First Vice President

Marilyn K. Cranney         Assistant Secretary of DWR; First Vice President 
First Vice President       and Assistant Secretary of MSDW Services;
and Assistant Secretary    Secretary of MSDW Distributors, the Morgan Stanley
                           Dean Witter Funds, TCW/DW Funds and Discover
                           Brokerage Index Series.

Salvatore DeSteno          First Vice President of MSDW Services.
First Vice President

Peter W. Gurman
First Vice President

Michael Interrante         First Vice President and Controller of MSDW First
Vice President             Services; Assistant Treasurer of MSDW and Controller
                           Distributors; First Vice President and Treasurer 
                           of MSDW Trust. 

David Johnson
First Vice President


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       -------------------------------------------------

Stanley Kapica
First Vice President

Lou Anne D. McInnis        First Vice President and Assistant Secretary of MSDW 
First Vice President and   Services; Assistant Secretary of MSDW Distributors,
the Assistant Secretary    Morgan Stanley Dean Witter Funds, TCW/DW Funds and 
                           Discover Brokerage Index Series.

Carsten Otto               First Vice President and Assistant Secretary of MSDW
First Vice President       Services; Assistant Secretary of MSDW Distributors,
and Assistant Secretary    the Morgan Stanley Dean Witter Funds, TCW/DW Funds
                           and Discover Brokerage Index Series.

Ruth Rossi                 First Vice President and Assistant Secretary of MSDW 
First Vice President and   Services; Assistant Secretary of MSDW Distributors
the Assistant Secretary    Morgan Stanley Dean Witter Funds, TCW/DW Funds and 
                           Discover Brokerage Index Series.

James P. Wallin
First Vice President

Robert Zimmerman
First Vice President

Dale Albright
Vice President

Joan G. Allman
Vice President

Andrew Arbenz
Vice President

Joseph Arcieri             Vice President of various Morgan Stanley Dean Witter 
Vice President             Funds.

Armon Bar-Tur
Vice President

Raymond Basile
Vice President

Nancy Belza
Vice President


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       ---------------------------------------------------
Maurice Bendrihem
Vice President and
Assistant Controller

Dale Boettcher
Vice President

Ronald Caldwell
Vice President

Joseph Cardwell
Vice President

Liam Carroll
Vice President

Philip Casparius
Vice President

Aaron Clark
Vice President

William Connerly
Vice President

David Dineen
Vice President

Sheila Finnerty
Vice President

Jeffrey D. Geffen
Vice President

Sandra Gelpieryn
Vice President

Michael Geringer
Vice President

Gail Gerrity
Vice President

Ellen Gold
Vice President


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       -------------------------------------------------

Stephen Greenhut
Vice President

Matthew Haynes             Vice President of various Morgan Stanley Dean Witter
Vice President             Funds.

Peter Hermann              Vice President of various Morgan Stanley Dean 
Vice President             Witter Funds.

David T. Hoffman
Vice President

Christopher Jones
Vice President

Kevin Jung
Vice President

Carol Espejo-Kane
Vice President

Nancy Kennedy
Vice President

Doug Ketterer
Vice President

Paula LaCosta              Vice President of various Morgan Stanley Dean Witter 
Vice President             Funds.

Kimberly LaHart
Vice President

Thomas Lawlor
Vice President

Todd Lebo                  Vice President and Assistant Secretary of MSDW 
Vice President and         Services; Assistant Secretary of MSDW Distributors,
Assistant Secretary        the Morgan Stanley Dean Witter Funds, TCW/DW Funds 
                           and Discover Brokerage Index Series.

Gerard J. Lian             Vice President of various Morgan Stanley Dean
WitterVice President       Funds.

Nancy Login
Vice President


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       ---------------------------------------------------

Sharon Loguercio
Vice President

Steven MacNamara
Vice President

Catherine Maniscalco       Vice President of Morgan Stanley Dean Witter Natural 
Vice President             Resource Development Securities Inc.

Albert McGarity
Vice President

Teresa McRoberts           Vice President of Morgan Stanley Dean Witter S&P 500 
Vice President             Select Fund.

Mark Mitchell
Vice President

Julie Morrone
Vice President

Mary Beth Mueller
Vice President

David Myers                Vice President of Morgan Stanley Dean Witter Natural 
Vice President             Resource Development Securities Inc.

James Nash
Vice President

Richard Norris
Vice President

George Paoletti            Vice President of various Morgan Stanley Dean Witter 
Vice President             Funds.

Anne Pickrell              Vice President of various  Morgan Stanley Dean
Vice President             Witter Funds.

Dawn Rorke
Vice President


John Roscoe                Vice President of Morgan Stanley Dean Witter
Vice President             Real Estate Fund

Hugh Rose
Vice President


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       ---------------------------------------------------

Robert Rossetti            Vice President of various Morgan Stanley Dean Witter 
Vice President             Funds.

Carl F. Sadler
Vice President

Deborah Santaniello
Vice President

Patrice Saunders
Vice President

Howard A. Schloss          Vice President of Morgan Stanley Dean Witter Federal
Vice President             Securities Trust.

Peter J. Seeley            Vice President of various Morgan Stanley Dean Witter
Vice President             Funds.

Robert Stearns
Vice President

Naomi Stein
Vice President

Michael Strayhorn
Vice President

Kathleen H. Stromberg      Vice President of various Morgan Stanley Dean Witter 
Vice President             Funds.

Marybeth Swisher
Vice President

Stuart Taylor
Vice President

Michael Thayer
Vice President

Robert Vanden Assem
Vice President

Alice Weiss                Vice President of various Morgan Stanley Dean Witter
Vice President             Funds.


<PAGE>

NAME AND POSITION WITH     OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION 
MORGAN STANLEY DEAN        OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS 
WITTER ADVISORS INC.       AND NATURE OF CONNECTION
- --------------------       ---------------------------------------------------

John Wong
Vice President

Item 27.    PRINCIPAL UNDERWRITERS

(a)    Morgan Stanley Dean Witter Distributors Inc. ("MSDW Distributors"), a 
Delaware corporation, is the principal underwriter of the Registrant. MSDW 
Distributors is also the principal underwriter of the following investment 
companies:

(1)  Active Assets California Tax-Free Trust
(2)  Active Assets Government Securities Trust
(3)  Active Assets Money Trust
(4)  Active Assets Tax-Free Trust
(5)  Morgan Stanley Dean Witter Aggressive Equity Fund
(6)  Morgan Stanley Dean Witter American Value Fund
(7)  Morgan Stanley Dean Witter Balanced Growth Fund
(8)  Morgan Stanley Dean Witter Balanced Income Fund
(9)  Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
(10) Morgan Stanley Dean Witter California Tax-Free Income Fund
(11) Morgan Stanley Dean Witter Capital Growth Securities
(12) Morgan Stanley Dean Witter Competitive Edge Fund, "BEST IDEAS PORTFOLIO"
(13) Morgan Stanley Dean Witter Convertible Securities Trust
(14) Morgan Stanley Dean Witter Developing Growth Securities Trust
(15) Morgan Stanley Dean Witter Diversified Income Trust 
(16) Morgan Stanley Dean Witter Dividend Growth Securities Inc.
(17) Morgan Stanley Dean Witter Equity Fund
(18) Morgan Stanley Dean Witter European Growth Fund Inc.
(19) Morgan Stanley Dean Witter Federal Securities Trust
(20) Morgan Stanley Dean Witter Financial Services Trust
(21) Morgan Stanley Dean Witter Fund of Funds
(22) Morgan Stanley Dean Witter Global Dividend Growth Securities
(23) Morgan Stanley Dean Witter Global Utilities Fund
(24) Morgan Stanley Dean Witter Growth Fund
(25) Morgan Stanley Dean Witter Hawaii Municipal Trust
(26) Morgan Stanley Dean Witter Health Sciences Trust
(27) Morgan Stanley Dean Witter High Yield Securities Inc.
(28) Morgan Stanley Dean Witter Income Builder Fund
(29) Morgan Stanley Dean Witter Information Fund
(30) Morgan Stanley Dean Witter Intermediate Income Securities
(31) Morgan Stanley Dean Witter International SmallCap Fund
(32) Morgan Stanley Dean Witter Japan Fund
(33) Morgan Stanley Dean Witter Limited Term Municipal Trust
(34) Morgan Stanley Dean Witter Liquid Asset Fund Inc.
(35) Morgan Stanley Dean Witter Market Leader Trust
(36) Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities
(37) Morgan Stanley Dean Witter Mid-Cap Growth Fund
(38) Morgan Stanley Dean Witter Multi-State Municipal Series Trust


<PAGE>

(39) Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
(40) Morgan Stanley Dean Witter New York Municipal Money Market Trust
(41) Morgan Stanley Dean Witter New York Tax-Free Income Fund
(42) Morgan Stanley Dean Witter Pacific Growth Fund Inc.
(43) Morgan Stanley Dean Witter Precious Metals and Minerals Trust
(44) Morgan Stanley Dean Witter Prime Income Trust
(45) Morgan Stanley Dean Witter Real Estate Fund
(46) Morgan Stanley Dean Witter S&P 500 Index Fund
(47) Morgan Stanley Dean Witter S&P 500 Select Fund
(48) Morgan Stanley Dean Witter Short-Term Bond Fund
(49) Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
(50) Morgan Stanley Dean Witter Special Value Fund
(51) Morgan Stanley Dean Witter Strategist Fund 
(52) Morgan Stanley Dean Witter Tax-Exempt Securities Trust
(53) Morgan Stanley Dean Witter Tax-Free Daily Income Trust
(54) Morgan Stanley Dean Witter U.S. Government Money Market Trust
(55) Morgan Stanley Dean Witter U.S. Government Securities Trust
(56) Morgan Stanley Dean Witter Utilities Fund
(57) Morgan Stanley Dean Witter Value-Added Market Series
(58) Morgan Stanley Dean Witter Value Fund
(59) Morgan Stanley Dean Witter Variable Investment Series
(60) Morgan Stanley Dean Witter World Wide Income Trust
(1)  TCW/DW Emerging Markets Opportunities Trust 
(2)  TCW/DW Global Telecom Trust
(3)  TCW/DW Income and Growth
(4)  TCW/DW Latin American Growth Fund
(5)  TCW/DW Mid-Cap Equity Trust
(6)  TCW/DW North American Government Income Trust
(7)  TCW/DW Small Cap Growth Fund
(8)  TCW/DW Total Return Trust 

(b)  The following information is given regarding directors and officers of MSDW
Distributors not listed in Item 26 above.  The principal address of MSDW
Distributors is Two World Trade Center, New York, New York 10048.  Other than
Mr. Purcell, who is a Trustee of the Registrant, none of the following persons
has any position or office with the Registrant.

NAME                     POSITIONS AND OFFICE WITH MSDW DISTRIBUTORS 

Christine A. Edwards     Executive Vice President, Secretary, Director and Chief
                         Legal Officer. 

Michael T. Gregg         Vice President and Assistant Secretary.

James F. Higgins         Director

Fredrick K. Kubler       Senior Vice President, Assistant Secretary and Chief 
                         Compliance Officer.

Philip J. Purcell        Director

John Schaeffer           Director


<PAGE>

Charles Vadala           Senior Vice President and Financial Principal.

Item 28.  LOCATION OF ACCOUNTS AND RECORDS

     All accounts, books and other documents required to be maintained by
Section 31(a) of the Investment Company Act of 1940 and the Rules thereunder are
maintained by the Investment Manager at its offices, except records relating to
holders of shares issued by the Registrant, which are maintained by the
Registrant's Transfer Agent, at its place of business as shown in the
prospectus.

Item 29.  MANAGEMENT SERVICES

     Registrant is not a party to any such management-related service contract.

Item 30.  UNDERTAKINGS
     
     None.
<PAGE>
                                     SIGNATURES
     
     Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it meets all of
the requirements for effectiveness of this Registration Statement pursuant to
Rule 485(b) under the Securities Act of 1933 and has duly caused this
Post-Effective Amendment to the Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of New York
and State of New York on the 1st day of April , 1999.

                                        MORGAN STANLEY DEAN WITTER
                                        CALIFORNIA TAX-FREE DAILY INCOME TRUST 

                                        By  /s/ BARRY FINK
                                        ------------------------------------
                                                Barry Fink
                                                Vice President and Secretary

     Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 12 has been signed below by the following persons
in the capacities and on the dates indicated.

     SIGNATURES                    TITLE                           DATE

(1) Principal Executive Officer    President, Chief 
                                   Executive Officer,
                                   Trustee and Chairman
By  /s/ Charles A. Fiumefreddo                                     4/1/99
    --------------------------
        Charles A. Fiumefreddo

(2) Principal Financial Officer    Treasurer and Principal
                                   Accounting Officer

By  /s/ Thomas F. Caloia                                           4/1/99
    --------------------------
        Thomas F. Caloia

(3) Majority of the Trustees  

    Charles A. Fiumefreddo (Chairman)
    Philip J. Purcell          

By  /s/ Barry Fink                                                 4/1/99
    --------------------------
        Barry Fink
        Attorney-in-Fact

    Michael Bozic      Manuel H. Johnson
    Edwin J. Garn      Michael E. Nugent      
    John R. Haire      John L. Schroeder      
    Wayne E. Hedien

By  /s/ David M. Butowsky                                          4/1/99
    --------------------------
        David M. Butowsky   
        Attorney-in-Fact 

<PAGE>
         MORGAN STANLEY DEAN WITTER CALIFORNIA TAX-FREE DAILY INCOME TRUST
                                          
                                   EXHIBIT INDEX


6.    Retirement Plan for Non-Interested Trustees or Directors.

10.   Consent of Independent Accountants.

14.   Financial Data Schedule.



<PAGE>
                          SECOND AMENDED AND RESTATED
                              RETIREMENT PLAN FOR
                            NON-INTERESTED TRUSTEES
                                  OR DIRECTORS
 
    Certain of the investment companies for which Morgan Stanley Dean Witter
Advisors Inc. ("MSDW Advisors") currently acts as manager or adviser adopted a
Retirement Plan for Non-Interested Trustees and Directors (the "Original Plan")
on February 21, 1991 (the "Commencement Date"). The Original Plan was amended
and restated on October 22, 1993, effective January 1, 1994 and further amended
by First Amendment dated December 19, 1995 and by Second Amendment dated May 8,
1997. The participating Funds now desire to amend and restate the Plan further
as provided herein effective as of the Commencement Date (as so amended, the
"Plan"), for the purposes of expanding the flexibility of Non-Interested
Trustees and Directors to make and change their elections of benefits.
 
    1.  DEFINITIONS
 
    (a) "Independent Board Member" shall mean (i) a Trustee of an Adopting Fund
if the Adopting Fund is organized as a Massachusetts business trust, (ii) a
Director of an Adopting Fund if the Adopting Fund is organized as a corporation,
and (iii) a "director" (as such term is defined in Section 2(a)(12) of the
Investment Company Act of 1940, as amended [the "Act"]) of an Adopting Fund if
the Adopting Fund is any other type of organization, who in any such case is not
an interested person (as such term is defined in Section 2(a)(19) of the Act) of
MSDW Advisors.
 
    (b) "Eligible Board Member" shall mean an Independent Board Member who at
the time of Retirement (as hereinafter defined) has served as an Independent
Board Member of any Adopting Fund for at least five years, or such lesser period
as may be determined by the Board.
 
    (c) "Eligible Service" shall mean service as an Independent Board Member.
 
    (d) "Eligible Retirement Date" shall mean, with respect to any Independent
Board Member, the later of (i) January 1, 1993, (ii) the first day of the
calendar month following the month in which such Independent Board Member's
seventy-second birthday occurs, or (iii) such later date as the Board may
establish as his or her "Eligible Retirement Date."
 
    (e) "Retirement" shall mean any termination of service of an Independent
Board Member except any termination which the Board determines to have resulted
from the Independent Board Member's willful misfeasance, bad faith, gross
negligence or reckless disregard of the duties involved in the conduct of the
office of Independent Board Member.
 
    (f) "Benefit" shall mean with respect to any Eligible Board Member, (i) the
Regular Benefit, unless the Alternate Benefit has been elected or the Early
Benefit granted, (ii) the Alternate Benefit, if elected by such Eligible Board
Member, unless the Early Benefit has been granted, or (iii) the Early Benefit,
if granted by the Board.
 
    (g) "Eligible Compensation" shall mean, with respect to any Eligible Board
Member of any Adopting Fund, an amount equal to one-fifth of the total
compensation, inclusive of compensation as a member of the Board or of a Board
Committee or as chairperson of a Board Committee, earned by such Eligible Board
Member for Eligible Service with respect to such Adopting Fund (other than under
this Plan) in the five year period prior to the date of his or her Retirement.
 
    (h) "Actuarial Equivalent" shall mean an actuarially equivalent benefit, as
computed by the Board with the advice of an enrolled actuary (as defined in the
Employee Retirement Income Security Act of 1974, as amended ["ERISA"]), using
assumptions determined by the Board at the time of the computation.
 
    (i) "Board" shall mean, with respect to any Adopting Fund, the Board of
Directors or Trustee or "directors," (as such term is defined in Section
2(a)(12) of the Act, of such Adopting Fund.
 
    (j) "Adoption Date" shall mean February 21, 1991.
 
                                       1
<PAGE>
    2.  ELIGIBILITY
 
    Each Eligible Board Member will be eligible to receive a Benefit from each
Adopting Fund commencing on such Eligible Board Member's Eligible Retirement
Date.
 
    3.  RETIREMENT DATE; AMOUNT OF BENEFIT
 
    (a) RETIREMENT. Each Independent Board Member will retire not later than his
or her Eligible Retirement Date. The foregoing provision shall be deemed by the
adoption of this Plan by any Fund to be an amendment of such Fund's by-laws
superseding any provision therein that an Independent Board Member shall serve
until his or her successor shall have been elected and qualified.
Notwithstanding the foregoing, the Board of any Adopting Fund may, to avoid the
simultaneous retirement of more than one of the Independent Board Members or for
any other appropriate reason, waive the obligation of any Independent Board
Member to retire on such date and may establish a later date as his or her
"Eligible Retirement Date." Any establishment of an Eligible Retirement Date may
be further extended by the Board.
 
    (b) REGULAR RETIREMENT BENEFIT. Upon Retirement, each Eligible Board Member
will receive, commencing as of such Eligible Board Member's Eligible Retirement
Date and continuing for the remainder of the Eligible Board Member's life, from
each Adopting Fund a retirement benefit (the "Regular Benefit") paid at an
annual rate equal to the percentage of his or her Eligible Compensation
established by resolution of the Board of such Adopting Fund most recently
adopted prior to the date of his or her retirement (the "Most Recent
Resolution") as the "Minimum Percentage," PLUS an additional percentage of such
Eligible Compensation for each full month of Eligible Service for any of the
Adopting Funds in excess of five years established by the Most Recent Resolution
as the "Monthly Additional Percentage," up to the percentage established by the
Most Recent Resolution as the "Maximum Percentage" of such Eligible Compensation
for ten or more years of Eligible Service for any of the Adopting Funds.
 
    (c) ELECTION OF ALTERNATE PAYMENT OF BENEFIT. Each Independent Board Member
shall have the option, exercisable at any time, and revisable at any time and
from time to time, prior to his or her first acceptance of benefits under the
Plan to elect (i) to receive, subject to being or becoming an Eligible Board
Member, a retirement benefit (the "Alternate Benefit") based upon the combined
life expectancy of such Eligible Board Member and his or her spouse on the date
of such Eligible Board Member's Retirement (rather than solely upon such
Eligible Board Member's own life, as shall be the case unless such Eligible
Board Member shall otherwise elect as provided in this Section 3(c)), and (ii)
if the Independent Board Member elects to receive the Alternate Benefit, to
elect a benefit either (x) to the last survivor of the Eligible Board Member or
spouse, whether the Eligible Board Member or spouse is the last survivor (a
"joint and last survivor" benefit) or (y) to the Eligible Board Member's spouse
if the spouse survives the Eligible Board Member (a "joint and contingent
survivor" benefit) equal in periodic amount to a percentage (the "Designated
Survivor's Percentage") of the periodic amount that would be, or would be
assumed to be, in effect while both the Eligible Board Member and spouse were
alive. The Designated Survivor's Percentage shall be the percentage stated in
the most recently delivered notice of election given by such Independent Board
Member, or, if no percentage is stated in any such notice, 100%. Payment of the
Alternate Benefit shall commence on the later of such Eligible Board Member's
Eligible Retirement Date or the date of his or her Retirement, shall be reduced
to the Designated Survivor's Percentage (if less than 100%) upon the earlier of
the deceases of the Eligible Board Member and spouse in the case of a joint and
last survivor benefit, or of the Eligible Board Member in the case of a joint
and contingent survivor benefit, and shall be payable through the remainder of
the life of the survivor of such Eligible Board Member and spouse. The Alternate
Benefit shall be the Actuarial Equivalent of the Regular Benefit provided under
paragraph 3(b). In the event of the death of an Eligible Board Member who has
chosen the Alternate Benefit prior to such Eligible Board Member's Retirement,
his or her spouse shall be entitled to a retirement benefit, commencing upon
such death, which shall be the Actuarial Equivalent of the benefit such spouse
would have received had such Eligible Board Member died on his or her Eligible
Retirement Date.
 
    (d) EARLY PAYMENT OF BENEFIT. An Eligible Board Member for good cause may
apply to the Board of any Adopting Fund for, and, at the discretion of such
Board, may be granted, a retirement benefit (the "Early Benefit") which is the
Actuarial Equivalent of the Regular Benefit or Alternate Benefit previously
elected
 
                                       2
<PAGE>
by such Eligible Board Member. Payment of the Early Benefit shall commence on a
date fixed by the Board in its sole discretion as such Eligible Board Member's
Eligible Retirement Date and shall be payable through the remainder of such
Eligible Board Member's life, or, if the Alternate Benefit had been elected, the
later of the lives of such Eligible Board Member and spouse. Good cause for
these purposes may include (but is not limited to) the permanent disability of
the Eligible Board Member.
 
    (e) Anything contained herein to the contrary notwithstanding, upon the
adoption by an Adopting Fund of a plan of liquidation, such Adopting Fund shall
pay to each Eligible Board Member who has retired, in lieu of his or her Benefit
from such Adopting Fund, an amount (the "Lump Sum") equal to the then present
value of the Benefit, using a discount rate determined by the Board at the time
of the computation. The Lump Sum shall be paid by such Adopting Fund at or
before the final liquidation and dissolution of such Adopting Fund.
 
    4.  TIME OF PAYMENT
 
    The Benefit to each Eligible Board Member or his or her spouse will, except
as provided in Section 3(c), 3(d) or 3(e) hereof, commence on such Eligible
Board Member's Eligible Retirement Date and will be paid each year in quarterly
installments that are as nearly equal as possible on the first day of each
calendar quarter.
 
    5.  PAYMENT OF BENEFIT; ALLOCATION OF COSTS
 
    Each Adopting Fund is responsible for the payment of Benefits based upon
Eligible Compensation from such Adopting Fund, as well as its proportionate
share of all expenses of administration of the Plan, including without
limitation all accounting and legal fees and expenses and fees and expenses of
any enrolled actuary. The obligations of each Adopting Fund to pay such benefits
and expenses will not be secured or funded in any manner, and such obligations
will not have any preference over the lawful claims of the Adopting Funds'
creditors and stockholders, shareholders, beneficiaries or limited partners, as
the case may be. To the extent that an Adopting Fund consists of one or more
separate portfolios, such costs and expenses will be allocated among such
portfolios in the proportion that compensation of Independent Board Members is
allocated among such portfolios.
 
    6.  ADMINISTRATION
 
    (a) ADMINISTRATION. Any question involving entitlement to payments under or
the administration of the Plan will be referred to the Board, which shall make
all interpretations and determinations necessary or desirable for the Plan's
administration (such interpretations and determinations to be final and
conclusive) and shall cause such records to be kept as may be necessary for the
administration of the Plan.
 
    7.  MISCELLANEOUS
 
    (a) RIGHTS NOT ASSIGNABLE. The right to receive any payment under the Plan
is not transferable or assignable. Except as otherwise provided herein with
respect to the Alternate Benefit, the Plan shall not create any benefit, cause
of action, right of sale, transfer, assignment, pledge, encumbrance, or other
such right in any spouse or heirs or the estate of any Eligible Board Member or
retired Eligible Board Member.
 
    (b) AMENDMENT, ETC. With respect to each Adopting Fund, the Board, including
a majority of the Independent Board Members of such Board, may at any time amend
or terminate the Plan or waive any provision of the Plan, PROVIDED, that except
as otherwise provided herein, no amendment, termination or waiver will impair
the rights of an Independent Board Member to receive upon Retirement the
payments which would have been made to such Independent Board Member had there
been no such amendment, termination or waiver (based upon such Board Member's
Eligible Service to the date of such amendment, termination or waiver) or the
rights of a retired Eligible Board Member to receive any Benefit due under the
Plan, without the consent of such Independent Board Member or Eligible Board
Member. Notwithstanding any provision to the contrary, the Board, with the
concurrence of a majority of the Independent Board Members of such Board and
without the consent of any individual Independent Board Member, may at any time
(i) amend or terminate the Plan to comply with any applicable provision of law
or any rule or regulation adopted, or proposed to be adopted, by any
governmental agency or any decision of any court or administrative agency, (ii)
change any assumptions used to determine what benefit may be an
 
                                       3
<PAGE>
Actuarial Equivalent, or (iii) terminate the Plan of an Adopting Fund (an
"Acquired Adopting Fund") substantially all the assets of which are acquired by
an entity which is itself an Adopting Fund (the "Acquiring Adopting Fund")
pursuant to a plan of reorganization between the Acquired Adopting Fund and the
Acquiring Adopting Fund (the "Reorganization Plan"), such termination to be
deemed approved upon adoption of the Reorganization Plan and to be effective
upon the effectiveness of the reorganization contemplated thereby without
liability or further obligation for any benefits accrued or otherwise payable to
an Independent Board Member by the Acquired Adopting Fund.
 
    (c) NO RIGHT TO REELECTION. Nothing in the Plan will create any obligation
on the part of the Board to nominate any Independent Board Member for
reelection.
 
    (d) VACANCIES. Although the Board will retain the right to increase or
decrease its size, it shall be the general policy to replace each retired
Independent Board Member by selecting a new Independent Board Member from
candidates recommended by the remaining Independent Board Members.
 
    (e) CONSULTING. Each retired Eligible Board Member may render such services
for any of the Adopting Funds, for such compensation, as may be agreed upon from
time to time by such retired Eligible Board Member and the Board.
 
    (f) EFFECTIVENESS. The Plan will be effective for all Independent Board
Members who have dates of Retirement occurring on or after the Adoption Date.
Periods of Eligible Service shall include periods commencing prior to such date.
 
                                       4
<PAGE>
                       MORGAN STANLEY DEAN WITTER FUNDS:
                  FUNDS THAT HAVE ADOPTED THE RETIREMENT PLAN
                    FOR NON-INTERESTED TRUSTEES OR DIRECTORS

                                   SCHEDULE A
                                   MARCH 1999
 
<TABLE>
<S>        <C>
1)         Active Assets California Tax-Free Trust
2)         Active Assets Government Securities Trust
3)         Active Assets Money Trust
4)         Active Assets Tax-Free Trust
5)         Morgan Stanley Dean Witter American Value Fund
6)         Morgan Stanley Dean Witter California Insured Municipal Income Trust
7)         Morgan Stanley Dean Witter California Quality Municipal Securities
8)         Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
9)         Morgan Stanley Dean Witter California Tax-Free Income Fund
10)        Morgan Stanley Dean Witter Capital Growth Securities
11)        Morgan Stanley Dean Witter Convertible Securities Trust
12)        Morgan Stanley Dean Witter Developing Growth Securities Trust
13)        Morgan Stanley Dean Witter Diversified Income Trust
14)        Morgan Stanley Dean Witter Dividend Growth Securities Inc.
15)        Morgan Stanley Dean Witter European Growth Fund Inc.
16)        Morgan Stanley Dean Witter Federal Securities Trust
17)        Morgan Stanley Dean Witter Global Dividend Growth Securities
18)        Morgan Stanley Dean Witter Government Income Trust
19)        Morgan Stanley Dean Witter Health Sciences Trust
20)        Morgan Stanley Dean Witter High Income Advantage Trust
21)        Morgan Stanley Dean Witter High Income Advantage Trust II
22)        Morgan Stanley Dean Witter High Yield Securities Inc.
23)        Morgan Stanley Dean Witter Income Securities Inc.
24)        Morgan Stanley Dean Witter Insured Municipal Bond Trust
25)        Morgan Stanley Dean Witter Insured Municipal Income Trust
26)        Morgan Stanley Dean Witter Insured Municipal Securities
27)        Morgan Stanley Dean Witter Insured Municipal Trust
28)        Morgan Stanley Dean Witter Intermediate Income Securities
29)        Morgan Stanley Dean Witter Limited Term Municipal Trust
30)        Morgan Stanley Dean Witter Liquid Asset Fund Inc.
31)        Morgan Stanley Dean Witter Multi-State Municipal Series Trust
32)        Morgan Stanley Dean Witter Municipal Income Opportunities Trust
33)        Morgan Stanley Dean Witter Municipal Income Opportunities Trust II
34)        Morgan Stanley Dean Witter Municipal Income Opportunities Trust III
35)        Morgan Stanley Dean Witter Municipal Income Trust
36)        Morgan Stanley Dean Witter Municipal Income Trust II
37)        Morgan Stanley Dean Witter Municipal Premium Income Trust
38)        Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
39)        Morgan Stanley Dean Witter New York Municipal Money Market Trust
40)        Morgan Stanley Dean Witter New York Tax-Free Income Fund
41)        Morgan Stanley Dean Witter Pacific Growth Fund Inc.
42)        Morgan Stanley Dean Witter Prime Income Trust
43)        Morgan Stanley Dean Witter Quality Municipal Income Trust
44)        Morgan Stanley Dean Witter Quality Municipal Investment Trust
45)        Morgan Stanley Dean Witter Quality Municipal Securities
46)        Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
47)        Morgan Stanley Dean Witter Strategist Fund
</TABLE>
 
                                       5
<PAGE>
<TABLE>
<S>        <C>
48)        Morgan Stanley Dean Witter Tax-Exempt Securities Trust
49)        Morgan Stanley Dean Witter Tax-Free Daily Income Trust
50)        Morgan Stanley Dean Witter U.S. Government Money Market Trust
51)        Morgan Stanley Dean Witter U.S. Government Securities Trust
52)        Morgan Stanley Dean Witter Utilities Fund
53)        Morgan Stanley Dean Witter Value-Added Market Series
54)        Morgan Stanley Dean Witter Variable Investment Series
55)        Morgan Stanley Dean Witter World Wide Income Trust
</TABLE>
 
                                       6

<PAGE>



                                                            Exhibit 99.10

                 CONSENT OF INDEPENDENT ACCOUNTANTS


    We hereby consent to the use in the Statement of Additional Information 
constituting part of this Post Effective Amendment No. 12 to the registration 
statement on Form N-1A (the "Registration Statement") of our report dated 
February 5, 1999, relating to the financial statements and financial 
highlights of Morgan Stanley Dean Witter California Tax-Free Daily Income 
Trust, formerly Dean Witter California Tax-Free Daily Income Trust, which 
appears in such Statement of Additional Information, and to the incorporation 
by reference of our report into the Prospectus which constitutes part of this 
Registration Statement. We also consent to the references to us under the 
headings "Custodian and Independent Accountants" and "Experts" in such 
Statement of Additional Information and to the reference to us under the 
heading "Financial Highlights" in such Prospectus.



PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
March 31, 1999



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               DEC-31-1998
<INVESTMENTS-AT-COST>                      284,662,360
<INVESTMENTS-AT-VALUE>                     284,662,360
<RECEIVABLES>                                1,419,665
<ASSETS-OTHER>                                  17,677
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             286,099,702
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    2,717,352
<TOTAL-LIABILITIES>                          2,717,352
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   283,382,247
<SHARES-COMMON-STOCK>                      283,382,247
<SHARES-COMMON-PRIOR>                      300,564,230
<ACCUMULATED-NII-CURRENT>                          103
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                               283,382,350
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            9,448,988
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               2,050,272
<NET-INVESTMENT-INCOME>                      7,398,716
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                        7,398,716
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                  (7,398,744)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                    526,385,736
<NUMBER-OF-SHARES-REDEEMED>              (537,402,847)
<SHARES-REINVESTED>                          7,398,744
<NET-CHANGE-IN-ASSETS>                     (3,618,367)
<ACCUMULATED-NII-PRIOR>                            131
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,479,199
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,065,230
<AVERAGE-NET-ASSETS>                       295,839,785
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                  0.025
<PER-SHARE-GAIN-APPREC>                              0
<PER-SHARE-DIVIDEND>                           (0.025)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   0.70
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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