DEAN WITTER CALIFORNIA TAX FREE INCOME FUND
485BPOS, 1997-03-13
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 13, 1997
    
 
                                                      REGISTRATION NOS.: 2-91103
                                                                        811-4020
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       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. 13                      /X/
    
                                     AND/OR
                  REGISTRATION STATEMENT UNDER THE INVESTMENT
                              COMPANY ACT OF 1940                            /X/
   
                                AMENDMENT NO. 14                             /X/
    
                            ------------------------
 
                  DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
                        (A MASSACHUSETTS BUSINESS TRUST)
        (EXACT NAME OF REGISTRANT AS SPECIFIED IN DECLARATION OF TRUST)
 
                             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)
 
   
           __X__ immediately upon filing pursuant to paragraph (b)
    
 
   
           _____ on             pursuant to paragraph (b)
    
 
           _____ 60 days after filing pursuant to paragraph (a)
 
           _____ on (date) pursuant to paragraph (a) of rule 485.
 
   
    THE REGISTRANT HAS REGISTERED AN INDEFINITE NUMBER OF ITS SHARES UNDER THE
SECURITIES ACT OF 1933 PURSUANT TO SECTION (a)(1) OF RULE 24f-2 OF THE
INVESTMENT COMPANY ACT OF 1940. PURSUANT TO SECTION (b)(2) OF RULE 24f-2, THE
REGISTRANT HAS FILED ITS RULE 24f-2 NOTICE, FOR ITS FISCAL YEAR ENDED DECEMBER
31, 1996, WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 7, 1997.
    
 
         AMENDING THE PROSPECTUS AND UPDATING THE FINANCIAL STATEMENTS.
 
            -------------------------------------------------------
            -------------------------------------------------------
<PAGE>
                  DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
 
                             CROSS-REFERENCE SHEET
 
                                   FORM N-1A
 
   
<TABLE>
<CAPTION>
ITEM                                                                             CAPTION
- -----------------------------------------------  -----------------------------------------------------------------------
<S>                                              <C>
PART A                                                                         PROSPECTUS
 1.  ..........................................  Cover Page
 2.  ..........................................  Prospectus Summary; Summary of Fund Expenses
 3.  ..........................................  Financial Highlights; Performance Information
 4.  ..........................................  Prospectus Summary; Investment Objective and Policies; Risk
                                                  Considerations; The Fund and its Management; Cover Page; Investment
                                                  Restrictions
 5.  ..........................................  The Fund and Its Management; Back Cover; Investment Objectives and
                                                  Policies
 6.  ..........................................  Dividends, Distributions and Taxes; Additional Information
 7.  ..........................................  Purchase of Fund Shares; Shareholder Services
 8.  ..........................................  Redemptions and Repurchases; Shareholder Services
 9.  ..........................................  Not Applicable
 
PART B                                                             STATEMENT OF ADDITIONAL INFORMATION
10.  ..........................................  Cover Page
11.  ..........................................  Table of Contents
12.  ..........................................  The Fund and Its Management
13.  ..........................................  Investment Practices and Policies; Investment Restrictions; Portfolio
                                                  Transactions and Brokerage
14.  ..........................................  Trustees and Officers
15.  ..........................................  The Fund and Its Management; Trustees and Officers
16.  ..........................................  The Fund and Its Management; The Distributor; Custodian and Transfer
                                                  Agent; Independent Accountants; Shareholder Services
17.  ..........................................  Portfolio Transactions and Brokerage
18.  ..........................................  Shares of the Fund
19.  ..........................................  The Distributor; Redemptions and Repurchases; Financial Statements;
                                                  Shareholder Services
20.  ..........................................  Dividends, Distributions and Taxes
21.  ..........................................  The Distributor
22.  ..........................................  Performance Information
23.  ..........................................  Experts; Financial Statements
</TABLE>
    
 
PART C
 
    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
MARCH 13, 1997
    
 
              Dean Witter California Tax-Free Income Fund (the "Fund") is an
open-end diversified management investment company whose investment objective is
to provide a high level of current income exempt from both federal and
California income tax, consistent with the preservation of capital. The Fund
invests principally in California tax-exempt fixed-income securities which are
rated in the four highest categories by Moody's Investors Service, Inc. or
Standard & Poor's Corporation. (See "Investment Objective and Policies.")
 
               Shares of the Fund are continuously offered at net asset value.
However, redemptions and/or repurchases are subject in most cases to a
contingent deferred sales charge, scaled down from 5% to 1% of the amount
redeemed, if made within six years of purchase, which charge will be paid to the
Fund's Distributor, Dean Witter Distributors Inc. See "Redemptions and
Repurchases--Contingent Deferred Sales Charge." In addition, the Fund pays the
Distributor a Rule 12b-1 distribution fee pursuant to a Plan of Distribution at
the annual rate of 0.75% of the lesser of the (i) average daily aggregate net
sales or (ii) average daily net assets of the Fund. See "Purchase of Fund
Shares--Plan of Distribution."
 
   
               This prospectus sets forth concisely the information you should
know before investing in the Fund. It should be read and retained for future
reference. Additional information about the Fund is contained in the Statement
of Additional Information, dated March 13, 1997, which has been filed with the
Securities and Exchange Commission, and which is available at no charge upon
request of the Fund at the address or telephone numbers listed on this page. The
Statement of Additional Information is incorporated herein by reference.
    
 
     DEAN WITTER DISTRIBUTORS INC.
      DISTRIBUTOR
 
      TABLE OF CONTENTS
 
Prospectus Summary/2
Summary of Fund Expenses/3
Financial Highlights/4
The Fund and its Management/5
Investment Objective and Policies/5
  Risk Considerations/7
Investment Restrictions/12
Purchase of Fund Shares/12
   
Shareholder Services/14
    
Redemptions and Repurchases/17
   
Dividends, Distributions and Taxes/19
    
   
Performance Information/21
    
   
Additional Information/22
    
 
SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, AND THE SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
    Dean Witter
    California Tax-Free Income Fund
    Two World Trade Center
    New York, New York 10048
    (212) 392-2550 or
    (800) 869-NEWS (toll-free)
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>               <C>
The               The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and is an
Fund              open-end, diversified management investment company investing principally in California tax-exempt
                  fixed-income securities which are rated in the four highest categories by Moody's Investors Service
                  Inc. or Standard and Poor's Corporation (see page 5).
- ----------------------------------------------------------------------------------------------------------------------
Shares Offered    Shares of beneficial interest with $0.01 par value (see page 22).
- ----------------------------------------------------------------------------------------------------------------------
Offering          At net asset value without sales charge (see page 12). Shares redeemed within six years of purchase
Price             are subject to a contingent deferred sales charge under most circumstances (see page 17).
- ----------------------------------------------------------------------------------------------------------------------
Minimum           Minimum initial investment is $1,000 ($100 if the account is opened through EasyInvestSM); minimum
Purchase          subsequent investment is $100 (see page 12).
- ----------------------------------------------------------------------------------------------------------------------
Investment        The investment objective of the Fund is to provide a high level of current income exempt from both
Objective         federal and California income tax, consistent with preservation of capital.
- ----------------------------------------------------------------------------------------------------------------------
Investment        The Fund will invest principally in California tax-exempt fixed-income securities. However, it may
Policies          also invest in taxable money market instruments, non-California tax-exempt securities, futures and
                  options.
- ----------------------------------------------------------------------------------------------------------------------
Investment        Dean Witter InterCapital Inc., the Investment Manager of the Fund, and its wholly-owned subsidiary,
Manager           Dean Witter Services Company Inc., serve in various investment management, advisory, management and
                  administrative capacities to 102 investment companies and other portfolios with assets of
                  approximately $93 billion at February 28, 1997 (see page 5).
- ----------------------------------------------------------------------------------------------------------------------
Management        The Investment Manager receives a monthly fee at the annual rate of 0.55% of average daily net
Fee               assets, scaled down on assets over $500 million. The fee should not be compared with fees paid by
                  other investment companies without also considering applicable sales loads and distribution fees,
                  including those noted below.
- ----------------------------------------------------------------------------------------------------------------------
Dividends         Dividends are declared daily, and either paid monthly as additional shares of the Fund or, at the
                  shareholder's option, paid monthly in cash (see page 19).
- ----------------------------------------------------------------------------------------------------------------------
Distributor and   Dean Witter Distributors Inc. (the "Distributor"). The Distributor receives from the Fund, pursuant
Distribution Fee  to a Rule 12b-1 Plan of Distribution, a distribution fee accrued daily and payable monthly at the
                  rate of 0.75% per annum of the lesser of (i) the Fund's average daily aggregate net sales or (ii)
                  the Fund's average daily net assets. This fee compensates the Distributor for the services provided
                  in distributing shares of the Fund and for its sales-related expenses. The Distributor also receives
                  the proceeds of any contingent deferred sales charges (see page 13).
- ----------------------------------------------------------------------------------------------------------------------
Redemption--      Shares are redeemable by the shareholder at net asset value; an account may be involuntarily
Contingent        redeemed if the total value of the account is less than $100 or, if the account was opened through
Deferred          EasyInvest-SM-, if after twelve months the shareholder has invested less than $1,000 in the account.
Sales             Although no commission or sales charge is imposed upon the purchase of shares, a contingent deferred
Charge            sales charge (scaled down from 5% to 1%) is imposed on any redemption of shares if, after such
                  redemption, the aggregate current value of an account with the Fund falls below the aggregate amount
                  of the investor's purchase payments made during the six years preceding the redemption. However,
                  there is no charge imposed on redemption of shares purchased through reinvestment of dividends or
                  distributions (see pages 17-19).
- ----------------------------------------------------------------------------------------------------------------------
Risks             The value of the Fund's portfolio securities, and therefore the Fund's net asset value per share,
                  may increase or decrease due to various factors, principally changes in prevailing interest rates
                  and the ability of the issuers of the Fund's portfolio securities to pay interest and principal on
                  such obligations. The Fund also may invest in futures and options which may be considered
                  speculative in nature and may involve greater risks than those customarily assumed by certain other
                  investment companies which do not invest in such instruments. Since the Fund concentrates its
                  investments in California tax-exempt securities, the Fund is affected by any political, economic or
                  regulatory developments affecting the ability of California issuers to pay interest or repay
                  principal.
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
  THE ABOVE IS QUALIFIED IN ITS ENTIRETY BY THE DETAILED INFORMATION APPEARING
                                   ELSEWHERE
       IN THE PROSPECTUS AND IN THE STATEMENT OF ADDITIONAL INFORMATION.
 
                                       2
<PAGE>
SUMMARY OF FUND EXPENSES
- --------------------------------------------------------------------------------
 
   
    The following table illustrates all expenses and fees that a shareholder of
the Fund will incur. The expenses and fees set forth in the table are for the
fiscal year ended December 31, 1996.
    
 
<TABLE>
<S>                                                                                      <C>
SHAREHOLDER TRANSACTION EXPENSES
- ---------------------------------------------------------------------------------------
Maximum Sales Charge Imposed on Purchases..............................................  None
Maximum Sales Charge Imposed on Reinvested Dividends...................................  None
Deferred Sales Charge
 (as a percentage of the lesser of original purchase price or redemption proceeds).....  5.0%
      A contingent deferred sales charge is imposed at the following declining rates:
</TABLE>
 
<TABLE>
<CAPTION>
YEAR SINCE PURCHASE
PAYMENT MADE                                                                                    PERCENTAGE
- --------------------------------------------------------------------------------------------  ---------------
<S>                                                                                           <C>
First.......................................................................................          5.0%
Second......................................................................................          4.0%
Third.......................................................................................          3.0%
Fourth......................................................................................          2.0%
Fifth.......................................................................................          2.0%
Sixth.......................................................................................          1.0%
Seventh and thereafter......................................................................       None
</TABLE>
 
   
<TABLE>
<S>                                                                                     <C>
Redemption Fees.......................................................................       None
Exchange Fee..........................................................................       None
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)
- --------------------------------------------------------------------------------------
Management Fee........................................................................      0.53%
12b-1 Fees*...........................................................................      0.75%
Other Expenses........................................................................      0.04%
Total Fund Operating Expenses.........................................................      1.32%
<FN>
- ------------
* A PORTION OF THE 12B-1 FEE EQUAL TO 0.20% OF THE FUND'S AVERAGE DAILY NET
  ASSETS IS CHARACTERIZED AS A SERVICE FEE WITHIN THE MEANING OF NATIONAL
  ASSOCIATION OF SECURITIES DEALERS, INC. ("NASD") GUIDELINES (SEE "PURCHASE OF
  FUND SHARES").
</TABLE>
    
 
   
<TABLE>
<CAPTION>
EXAMPLE                                                                   1 year       3 years      5 years     10 years
- ----------------------------------------------------------------------  -----------  -----------  -----------  -----------
<S>                                                                     <C>          <C>          <C>          <C>
You would pay the following expenses on a $1,000 investment, assuming
 (1) 5% annual return and (2) redemption at the end of each time
 period...............................................................   $      63    $      72    $      92    $     159
You would pay the following expenses on the same investment, assuming
 no redemption........................................................   $      13    $      42    $      72    $     159
</TABLE>
    
 
    THE ABOVE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF THE FUND MAY BE GREATER OR
LESS THAN THOSE SHOWN.
 
    The purpose of this table is to assist the investor in understanding the
various costs and expenses that an investor in the Fund will bear directly or
indirectly. For a more complete description of these costs and expenses, see
"The Fund and Its Management," "Plan of Distribution" and "Redemptions and
Repurchases."
 
    Long-term shareholders of the Fund may pay more in sales charges and
distribution fees than the economic equivalent of the maximum front-end sales
charges permitted by the NASD.
 
                                       3
<PAGE>
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
   
    The following ratios and per share data for a share of beneficial interest
outstanding throughout each period have been audited by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in conjunction
with the financial statements, notes thereto and the unqualified report of
independent accountants which are contained in the Statement of Additional
Information. Further information about the performance of the Fund is contained
in the Fund's Annual Report to Shareholders, which may be obtained without
charge upon request to the Fund.
    
 
   
<TABLE>
<CAPTION>
                                                           FOR THE YEAR ENDED DECEMBER 31
                  ----------------------------------------------------------------------------------------------------------------
                     1996       1995       1994        1993       1992       1991        1990       1989       1988        1987
<S>               <C>         <C>        <C>        <C>         <C>        <C>        <C>         <C>        <C>        <C>
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
PER SHARE OPERATING
 PERFORMANCE:
  Net asset
   value,
   beginning of
   period........     $12.92     $11.87     $13.31      $12.70     $12.46     $11.99      $12.05     $11.68     $11.19      $12.25
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
  Net investment
   income........       0.58       0.61       0.64        0.67       0.69       0.71        0.72       0.71       0.72        0.72
  Net realized
   and unrealized
   gain (loss)...      (0.21)      1.13      (1.42)       0.70       0.26       0.48       (0.06)      0.37       0.50       (1.06)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
  Total from
   investment
   operations....       0.37       1.74      (0.78)       1.37       0.95       1.19        0.66       1.08       1.22       (0.34)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
  Less dividends
   and
   distributions
   from:
    Net
     investment
     income......      (0.58)     (0.61)     (0.64)      (0.67)     (0.69)     (0.71)      (0.72)     (0.71)     (0.72)      (0.72)
    Net realized
     gain........      (0.14)     (0.08)     (0.02)      (0.09)     (0.02)     (0.01)     --         --          (0.01)     --
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
  Total dividends
   and
 distributions...      (0.72)     (0.69)     (0.66)      (0.76)     (0.71)     (0.72)      (0.72)     (0.71)     (0.73)      (0.72)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
  Net asset
   value,
   end of
   period........     $12.57     $12.92     $11.87      $13.31     $12.70     $12.46      $11.99     $12.05     $11.68      $11.19
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
TOTAL INVESTMENT
 RETURN+.........      3.13%     14.96%    (5.97)%      10.97%      7.83%     10.18%       5.69%      9.54%     11.23%     (2.70)%
RATIOS TO AVERAGE
 NET ASSETS:
  Expenses.......      1.32%(1)     1.33%     1.32%      1.27%      1.32%      1.28%       1.30%      1.32%      1.34%       1.35%
  Net investment
   income........      4.66%      4.90%      5.10%       5.03%      5.45%      5.78%       5.98%      6.00%      6.31%       6.27%
SUPPLEMENTAL DATA:
  Net assets, end
   of period, in
   millions......       $976  $   1,055  $   1,008  $    1,190  $     987  $     834  $      677  $     567  $     430  $      365
  Portfolio
   turnover
   rate..........        11%        23%        12%         10%         6%         3%         16%        13%        13%         23%
<FN>
- ---------------
+ DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE NET
  ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
(1) THE ABOVE RATIO DOES NOT REFLECT THE EFFECT OF EXPENSE OFFSETS OF 0.01%.
</TABLE>
    
 
                                       4
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
   
    Dean Witter California Tax-Free Income Fund (the "Fund") is an open-end,
diversified management investment company. The Fund is a trust of the type
commonly known as a "Massachusetts business trust" and was organized under the
laws of Massachusetts on April 9, 1984.
    
 
    Dean Witter InterCapital Inc. ("InterCapital" or the "Investment Manager"),
whose address is Two World Trade Center, New York, New York 10048, is the Fund's
Investment Manager. The Investment Manager, which was incorporated in July,
1992, is a wholly-owned subsidiary of Dean Witter, Discover & Co. ("DWDC"), a
balanced financial services organization providing a broad range of nationally
marketed credit and investment products.
 
   
    InterCapital and its wholly-owned subsidiary, Dean Witter Services Company
Inc., serve in various investment management, advisory, management and
administrative capacities to a total of 102 investment companies, thirty of
which are listed on the New York Stock Exchange, with combined total assets
including this Fund of approximately $89.8 billion as of February 28, 1997. The
Investment Manager also manages portfolios of pension plans, other institutions
and individuals which aggregated approximately $3.2 billion at such date.
    
 
   
    On February 5, 1997, DWDC and Morgan Stanley Group Inc. announced that they
had entered into an Agreement and Plan of Merger, with the combined company to
be named Morgan Stanley, Dean Witter, Discover & Co. The business of Morgan
Stanley Group Inc. and its affiliated companies is providing a wide range of
financial services for sovereign governments, corporations, institutions and
individuals throughout the world. DWDC is the direct parent of Dean Witter
InterCapital and Dean Witter Distributors Inc., the Fund's distributor. It is
currently anticipated that the transaction will close in mid-1997. Thereafter,
Dean Witter InterCapital Inc. and Dean Witter Distributors Inc. will be direct
subsidiaries of Morgan Stanley, Dean Witter, Discover & Co.
    
 
    The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and manage the investment of the Fund's
assets, including the placing of orders for the purchase and sale of portfolio
securities. InterCapital has retained Dean Witter Services Company Inc. to
perform the aforementioned administrative services for the Fund. The Fund's
Trustees review the various services provided by or under the direction of the
Investment Manager to ensure that the Fund's general investment policies and
programs are being properly carried out and that administrative services are
being provided to the Fund in a satisfactory manner.
 
   
    As full compensation for the services and facilities furnished to the Fund
and for expenses of the Fund assumed by the Investment Manager, the Fund pays
the Investment Manager monthly compensation calculated daily at an annual rate
of 0.55% of the portion of the daily net assets of the Fund not exceeding $500
million, scaled down at various asset levels to 0.475% on the portion of the
Fund's assets exceeding $1 billion. For the fiscal year ended December 31, 1996,
the Fund accrued total compensation to the Investment Manager amounting to 0.53%
of the Fund's average daily net assets and the Fund's total expenses amounted to
1.32% of the Fund's average daily net assets.
    
 
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------
 
    The investment objective of the Fund is to provide a high level of current
income which is exempt from both federal and California income tax, consistent
with the preservation of capital. There is no assurance that this objective will
be achieved. The Fund seeks to achieve its investment objective by
 
                                       5
<PAGE>
investing its assets in accordance with the following policies:
 
    1. As a fundamental policy the Fund must
have at least 80% of its total assets invested in California tax-exempt
securities, except as stated in paragraph (3) below. California tax-exempt
securities consist of California Municipal Bonds and California Municipal Notes
("California Municipal Obligations") and California Municipal Commercial Paper.
Only California tax-exempt securities which satisfy the following standards may
be purchased by the Fund: (a) California Municipal Bonds which are rated at the
time of purchase within the four highest grades by Moody's Investors Service,
Inc. ("Moody's") or Standard & Poor's Corporation ("S&P"); (b) California
Municipal Notes of issuers which at the time of purchase are rated in the two
highest grades by Moody's or S&P, or, if not rated, have outstanding one or more
issues of California Municipal Bonds rated as set forth in clause (a) of this
paragraph; (c) California Municipal Commercial Paper which at the time of
purchase is rated P-1 by Moody's or A-1 by S&P; and (d) unrated securities which
at the time of purchase are judged by the Investment Manager to be of comparable
quality to the securities described above.
 
   
    2. In accordance with the current position of
the staff of the Securities and Exchange Commission, tax-exempt securities which
are subject to the federal alternative minimum tax for individual shareholders
("AMT") will not be included in the 80% total described in paragraph 1 above.
(See "Dividends, Distributions and Taxes," page 19.) As such, the remaining
portion of the Fund's total assets may be invested in tax-exempt securities
subject to the AMT.
    
 
    3. Up to 20% of the Fund's total assets may be
invested in taxable money market instruments, non-California tax-exempt
securities, futures and options and tax-exempt securities subject to the AMT.
However, the Fund may temporarily invest more than 20% of its total assets in
taxable money market instruments and non-California tax exempt securities, or in
tax-exempt securities subject to the federal alternative minimum tax for
individual shareholders, to maintain a "defensive" posture when, in the opinion
of the Investment Manager, it is advisable to do so because of market
conditions. Only those non-California tax-exempt securities which satisfy the
standards set forth in paragraph (1) 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 or A-1 by S&P; (iii)
certificates of deposit of domestic banks with assets of $1 billion or more; and
(iv) repurchase agreements with respect to portfolio securities.
 
   
    Municipal Obligations are debt obligations of a state, its cities,
municipalities and municipal agencies which generally have maturities, at the
time of their issuance, of either one year or more (Bonds) or from six months to
three years (Notes). Municipal Commercial Paper are short-term obligations of
municipalities. Any Municipal Bond or Municipal Note which depends directly or
indirectly on the credit of the Federal Government, its agencies or
instrumentalities shall be considered to have a rating of Aaa/AAA. An obligation
shall be considered a California Municipal Obligation or California Municipal
Commercial Paper only if, in the opinion of bond counsel, the interest payable
thereon is exempt from both federal income tax and California personal income
tax. The Fund may purchase Municipal Obligations which had originally been
issued by the same issuer as two separate series of the same issue with
different interest rates, but which are now linked together to form one series.
    
 
    The foregoing percentage and rating policies apply at the time of
acquisition of a security based upon the last previous determination of the
Fund's net asset value. Any subsequent change in any rating or change in
percentages resulting from market fluctuations or other changes in the Fund's
total
 
                                       6
<PAGE>
assets will not require elimination of any security from the Fund's portfolio
until such time as the value of all such securities exceeds 5% of the Fund's
total assets and, at such time, only when the Investment Manager determines that
it is practicable to sell the security without undue market or tax consequences
to the Fund. As such, the Fund may hold Municipal Bonds rated below investment
grade by Moody's and/or S&P in its portfolio. Municipal Bonds rated below
investment grade may not currently be paying any interest and may have extremely
poor prospects of ever attaining any real investment standing.
 
    The two principal classifications of Municipal Obligations and Commercial
Paper are "general obligation" and "revenue" bonds, notes or commercial paper.
General obligation bonds, notes or commercial paper are secured by the issuer's
pledge of its faith, credit and taxing power for the payment of principal and
interest. Issuers of general obligation bonds, notes or commercial paper include
a state, its counties, cities, towns and other governmental units. Revenue
bonds, notes or commercial paper are payable from the revenues derived from a
particular facility or class of facilities or, in some cases, from specific
revenue sources. Revenue bonds, notes or commercial paper are issued for a wide
variety of purposes, including the financing of electric, gas, water and sewer
systems and other public utilities; industrial development and pollution control
facilities; single and multi-family housing units; public buildings and
facilities; air and marine ports, transportation facilities such as toll roads,
bridges and tunnels; and health and educational facilities such as hospitals and
dormitories. They rely primarily on user fees to pay debt service, although the
principal revenue source is often supplemented by additional security features
which are intended to enhance the creditworthiness of the issuer's obligations.
In some cases, particularly revenue bonds issued to finance housing and public
buildings, a direct or implied "moral obligation" of a governmental unit may be
pledged to the payment of debt service. In other cases, a special tax or other
charge may augment user fees.
 
RISK CONSIDERATIONS
 
    Investments in municipal bonds rated either BBB by S&P or Baa by Moody's
(investment grade bonds--the lowest-rated permissible investments by the Fund)
may have speculative characteristics and, therefore, changes in economic
conditions or other circumstances are more likely to weaken their capacity to
make principal and interest payments than would be the case with investments in
securities with higher credit ratings.
 
    Included within the revenue bonds category of bonds described above are
participations in lease obligations or installment purchase contracts
(hereinafter 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.
 
   
    Lease obligations represent a type of financing that may not have the depth
of marketability associated with more conventional municipal obligations, and,
as a result, certain of such lease obligations
    
 
                                       7
<PAGE>
may be considered illiquid securities. To determine whether or not the Fund will
consider such securities to be illiquid (the Fund may not invest more than ten
percent of its net assets in illiquid securities), the Trustees of the Fund have
established guidelines to be utilized by the Fund in determining the liquidity
of a lease obligation. The factors to be considered in making the determination
include: 1) the frequency of trades and quoted prices for the obligation; 2) the
number of dealers willing to purchase or sell the security and the number of
other potential purchasers; 3) the willingness of dealers to undertake to make a
market in the security; and 4) the nature of the marketplace trades, including,
the time needed to dispose of the security, the method of soliciting offers, and
the mechanics of the transfer.
 
    The Fund does not generally intend to invest more than 25% of its total
assets in securities of any one governmental unit. 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.
 
    The value of the Fund's portfolio securities, and therefore the Fund's net
asset value per share, may increase or decrease due to various factors,
principally changes in prevailing interest rates and the ability of the issuers
of the Fund's portfolio securities to pay interest and principal on such
obligations. Generally, a rise in interest rates will result in a decrease in
the Fund's net asset value per share, while a drop in interest rates will result
in an increase in the Fund's net asset value per share.
 
    VARIABLE RATE OBLIGATIONS.  The interest rates payable on certain securities
in which the Fund may invest are not fixed and may fluctuate based upon changes
in market rates. Obligations of this type are called "variable rate"
obligations. The interest rate payable on a variable rate obligation is adjusted
either at predesignated periodic intervals or whenever there is a change in the
market rate of interest on which the interest rate payable is based.
 
    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS.  From
time to time, in the ordinary course of business, the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such 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 the commitment. There is no overall
limit on the percentage of the Fund's assets which may be committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis. An increase in the percentage of the Fund's assets committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis may increase the volatility of the Fund's net asset value.
 
    ZERO COUPON SECURITIES.  A portion of the fixed-income securities purchased
by the Fund may be zero coupon securities. Such securities are purchased at a
discount from their face amount, giving the purchaser the right to receive their
full value at maturity. The interest earned on such securities is, implicitly,
automatically compounded and paid out at maturity. While such compounding at a
constant rate eliminates the risk of receiving lower yields upon reinvestment of
interest if prevailing interest rates decline, the owner of a zero coupon
security will be unable to participate in higher yields upon reinvestment of
interest received on interest-paying securities if prevailing interest rates
rise.
 
    A zero coupon security pays no interest to its holder during its life.
Therefore, to the extent the Fund invests in zero coupon securities, it will not
receive current cash available for distribution to shareholders. In addition,
zero coupon securities are subject to substantially greater price fluctuations
during periods of changing prevailing interest
 
                                       8
<PAGE>
   
rates than are comparable securities which pay interest on a current basis.
Current federal tax law requires that a holder (such as the Fund) of a zero
coupon security accrue a portion of the discount at which the security was
purchased as income each year even though the Fund receives no interest payments
in cash on the security during the year.
    
 
    The Fund may enter into financial futures contracts, options on such futures
and municipal bond index futures contracts for hedging purposes.
 
    FINANCIAL FUTURES CONTRACTS AND OPTIONS ON FUTURES.  The Fund may invest in
financial futures contracts and related options thereon. The Fund may sell a
financial futures contract or purchase a put option on such futures contract, if
the Investment Manager anticipates interest rates to rise, as a hedge against a
decrease in the value of the Fund's portfolio securities. If the Investment
Manager anticipates that interest rates will decline, the Fund may purchase a
financial futures contract or a call option thereon to protect against an
increase in the price of the securities the Fund intends to purchase. These
futures contracts and related options thereon will be used only as a hedge
against anticipated interest rate changes. A futures contract sale creates an
obligation by the Fund, as seller, to deliver the specific type of instrument
called for in the contract at a specified future time for a specified price. A
futures contract purchase would create an obligation by the Fund, as purchaser,
to take delivery of the specific type of financial instrument at a specified
future time at a specified price. The specific securities delivered or taken,
respectively, at settlement date, would not be determined until or near that
date. The determination would be in accordance with the rules of the exchange on
which the futures contract sale or purchase was effected.
 
    Although the terms of financial futures contracts specify actual delivery or
receipt of securities, in most instances the contracts are closed out before the
settlement date without the making or taking of delivery of the securities.
Closing out of a futures contract is effected by entering into an offsetting
purchase or sale transaction.
 
    Unlike a financial futures contract, which requires the parties to buy and
sell a security on a set date, an option on such a futures contract entitles its
holder to decide on or before a future date whether to enter into such a
contract (a long position in the case of a call option and a short position in
the case of a put option). If the holder decides not to enter into the contract,
the premium paid for the option on the contract is lost. Since the value of the
option is fixed at the point of sale, there are no daily payments of cash to
reflect the change in the value of the underlying contract as there is by a
purchaser or seller of a futures contract. The value of the option does change
and is reflected in the net asset value of the Fund.
 
    A risk in employing futures contracts to protect against the price
volatility of portfolio securities is that the prices of securities subject to
such futures contracts may correlate imperfectly with the behavior of the cash
prices of the Fund's portfolio securities. The risk of imperfect correlation
will be increased by the fact that the financial futures contracts in which the
Fund may invest are on taxable securities rather than tax-exempt securities, and
there is no guarantee that the prices of taxable securities will move in a
similar manner to the prices of tax-exempt securities. The correlation may be
distorted by the fact that the futures market is dominated by short-term traders
seeking to profit from the difference between a contract or security price
objective and their cost of borrowed funds. Such distortions are generally minor
and would diminish as the contract approached maturity.
 
    Another risk is that the Fund's manager could be incorrect in its
expectations as to the direction or extent of various interest rate movements or
the time span within which the movements take place. For example, if the Fund
sold financial futures contracts for the sale of securities in anticipation of
an increase in interest rates, and then interest rates went down instead,
causing bond prices to rise, the Fund would lose money on the sale.
 
                                       9
<PAGE>
    In addition to the risks that apply to all options transactions (see the
Statement of Additional Information for a description of the characteristics of,
and the risks of investing in, options on debt securities), there are several
special risks relating to options on futures. In particular, the ability to
establish and close out positions on such options will be subject to the
development and maintenance of a liquid secondary market. It is not certain that
this market will develop or be maintained.
 
    MUNICIPAL BOND INDEX FUTURES.  The Fund may utilize municipal bond index
futures contracts and options thereon for hedging purposes. The Fund's
strategies in employing such contracts will be similar to that discussed above
with respect to financial futures and options thereon. A municipal bond index is
a method of reflecting in a single number the market value of many different
municipal bonds and is designed to be representative of the municipal bond
market generally. The index fluctuates in response to changes in the market
values of the bonds included within the index. Unlike futures contracts on
particular financial instruments, transactions in futures on a municipal bond
index will be settled in cash, if held until the close of trading in the
contract. However, like any other futures contract, a position in the contract
may be closed out by a purchase or sale of an offsetting contract for the same
delivery month prior to expiration of the contract.
 
    The Fund may not enter into futures contracts or related options thereon if
immediately thereafter the amount committed to margin plus the amount paid for
option premiums exceeds 5% of the value of the Fund's total assets. The Fund may
not purchase or sell futures contracts or related options if immediately
thereafter more than one-third of its net assets would be hedged.
 
RISK CONSIDERATIONS RELATING TO CALIFORNIA
 TAX-EXEMPT SECURITIES
 
    The Fund will be affected by any political, economic or regulatory
developments affecting the ability of California issuers to pay interest or
repay principal on their obligations. Various subsequent developments regarding
the California Constitution and State of California ("State") statutes which
limit the taxing and spending authority of California governmental entities may
impair the ability of California issuers to maintain debt service on their
obligations. Of particular impact are constitutional voter initiatives, which
have become common in recent years. The following information constitutes only a
brief summary and is not intended as a complete description.
 
   
    California is the most populous state in the nation with a total population
at the 1990 census of 29,976,000. Growth has been incessant since World War II,
with population gains in each decade since 1950 of between 18% and 49%. During
the last decade, the population rose 20%. The State now comprises 12.3% of the
nation's population and 12.9% of its total personal income. Its economy is broad
and diversified with major concentrations in high technology research and
manufacturing, aerospace and defense-related manufacturing, trade, real estate,
and financial services. After experiencing strong growth throughout much of the
1980s, the State was adversely affected by both the national recession and the
cutbacks in aerospace and defense spending which had a severe impact on the
economy in Southern California. Although California is still experiencing some
of the effects of the recession and its unemployment is above the national
average, the gap is narrowing and is projected to close to within 1% of the
national average in 1997. 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
three years, the increases in employment and income will likely exceed those of
the nation as a whole by a significant margin.
    
 
    These economic difficulties have exacerbated the structural budget imbalance
which has been evident since fiscal year 1985-1986. Since that time, budget
shortfalls have become increasingly more difficult to solve and the State has
recorded in its
 
                                       10
<PAGE>
general fund (the "General Fund") operating deficits in several fiscal years.
Many of these problems have been attributable to the fact that the great
population influx has produced increased demand for education and social
services at a far greater pace than the growth in the State's tax revenues.
Despite substantial tax increases, expenditure reductions and the shift of some
expenditure responsibilities to local government, the budget condition remains
problematic.
 
   
    In July 1996, the Governor signed into law a new $62.8 billion budget which,
among other things, significantly increases education spending from the previous
fiscal year, reduces taxes for corporations and banks and provides for a
balanced budget at the close of the fiscal year. At the same time, the budget
continues several funding reductions made in past years, mostly to health and
welfare programs. Although the state's budget provides for a reserve of $305
million, revenue and expenditure developments have occurred which may have the
effect of reducing the reserve. The Governor's proposed budget for fiscal year
1997-1998 indicates total spending of $66.6 billion and anticipates a $553
million reserve for economic uncertainties. As in past years, the state's budget
assumes savings which depend on future federal actions, both to fund programs
relating to MediCal and incarceration costs associated with undocumented
immigrants and to relieve the state from federally mandated spending, which may
not occur. Accordingly, the anticipated reserves may be reduced unless the
economy outperforms expectations or spending falls below planned levels.
    
 
   
    Because of California's continuing budget problems, the State's General
Obligation bonds were downgraded in July 1994 from A1 to Aa by Moody's and from
A+ to A by Standard & Poor's and from AA to A by Fitch Investment Service, Inc.
All three ratings companies 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 Standard & Poor's raised their
ratings from A to A+.
    
 
    The effect of these various constitutional and statutory amendments and
budget developments upon the ability of California issuers to pay interest and
principal on their obligations remains unclear and in any event may depend upon
whether a particular California tax-exempt security is a general or limited
obligation bond and on the type of security provided for the bond. It is
possible that other measures affecting the taxing or spending authority of
California or its political subdivisions may be approved or enacted in the
future.
 
    For a more detailed discussion of the State of California economic factors,
see the Statement of Additional Information.
 
PORTFOLIO MANAGEMENT
 
   
    The Fund is managed by the Investment Manager with a view to achieving the
Fund's investment objective. In determining which securities to purchase for the
Fund or hold in the Fund's portfolio, the Investment Manager will rely on
information from various sources, including research, analysis and appraisals of
brokers and dealers, including Dean Witter Reynolds Inc. ("DWR"), a
broker-dealer affiliate of InterCapital; the views of Trustees of the Fund and
others regarding economic developments and interest rate trends; and the
Investment Manager's own analysis of factors it deems relevant. The Fund is
managed within InterCapital's Tax-Exempt Group, which manages 40 tax-exempt
municipal funds and fund portfolios, with approximately $10.8 billion in assets
as of January 31, 1997. James F. Willison, Senior Vice President of InterCapital
and Manager of InterCapital's Municipal Fixed-Income Group and Joseph R.
Arcieri, Vice President of InterCapital and a member of InterCapital's Municipal
Fixed-Income Group, have been the primary portfolio managers of the Fund since
its inception and February 1997, respectively, and have been portfolio managers
at InterCapital for over five years.
    
 
    Securities are purchased and sold principally in response to the Investment
Manager's current evaluation of an issuer's ability to meet its debt
obliga-
 
                                       11
<PAGE>
   
tions in the future, and the Investment Manager's current assessment of future
changes in the levels of interest rates on tax-exempt securities of varying
maturities. Securities purchased by the Fund are, generally, sold by dealers
acting as principal for their own accounts (pursuant to an order issued by the
Securities and Exchange Commission, the Fund may effect principal transactions
in certain taxable money market instruments with DWR). In addition, the Fund may
incur brokerage commissions on transactions conducted through DWR.
    
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    The investment restrictions listed below are among the restrictions that
have been adopted by the Fund as fundamental policies. Under the Investment
Company Act of 1940, as amended (the "Act"), a fundamental policy may not be
changed without the vote of a majority of the outstanding voting securities of
the Fund, as defined in the Act.
 
    The Fund may not:
 
    1. With respect to 75% of its total assets,
purchase securities of any issuer if immediately thereafter more than 5% of the
Fund's total assets were invested in securities of such issuer (other than
obligations issued or guaranteed by the United States Government, its agencies
or instrumentalities or by the State of California or its political
subdivisions).
 
    2. Purchase more than 10% of all outstanding
taxable debt securities of any one issuer (other than obligations issued, or
guaranteed as to principal and interest, by the United States Government, its
agencies or instrumentalities).
 
    3. Invest more than 25% of the value of its total
assets in taxable securities of issuers in any one industry. This restriction
does not apply to obligations issued or guaranteed by the United States
Government, its agencies or instrumentalities, or by the State of California or
its political subdivisions (industrial development and pollution control bonds
are grouped into industries based upon the business in which the issuers of such
obligations are engaged).
 
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
    The Fund offers its shares for sale to the public on a continuous basis.
Pursuant to a Distribution Agreement between the Fund and Dean Witter
Distributors Inc. (the "Distributor"), an affiliate of the Investment Manager,
shares of the Fund are distributed by the Distributor and are offered by DWR and
other dealers who have entered into agreements with the Distributor ("Selected
Broker-Dealers"). The principal executive office of the Distributor is located
at Two World Trade Center, New York, New York 10048.
 
   
    The minimum initial purchase is $1,000. Subsequent purchases of $100 or more
may be made by sending a check, payable to Dean Witter California Tax-Free
Income Fund, directly to Dean Witter Trust Company ("Transfer Agent") at P.O.
Box 1040, Jersey City, New Jersey 07303 or by contacting a DWR or other Selected
Dealer account executive. The minimum initial purchase in the case of
investments through EasyInvestSM, an automatic purchase plan (see "Shareholder
Services"), is $100, provided that the schedule of automatic investments will
result in investments totalling at least $1,000 within the first twelve months.
Certificates for shares purchased will not be issued unless a request is made by
the shareholder in writing to the Transfer Agent. The offering price will be the
net asset value per share next determined following receipt of an order (see
"Determination of Net Asset Value" below). Shares are sold through the
Distributor on a normal three business day settlement basis; that is, payment
generally is due on or before the third business day (settlement date) after the
order is placed with the Distributor. Shares of the Fund purchased through the
Distributor or a Selected
    
 
                                       12
<PAGE>
Broker-Dealer are entitled to dividends beginning on the next business day
following settlement date. Since DWR and other Selected Broker-Dealers forward
investors' funds on settlement date, they will benefit from the temporary use of
the funds where payment is made prior thereto. Shares purchased through the
Transfer Agent are entitled to dividends beginning on the next business day
following receipt of an order. As noted above, orders placed directly with the
Transfer Agent must be accompanied by payment. Investors will be entitled to
receive capital gains distributions if their order is received by the close of
business on the day prior to the record date for such distributions. While no
sales charge is imposed at the time shares are purchased, a contingent deferred
sales charge may be imposed at the time of redemption (see "Redemptions and
Repurchases"). Sales personnel are compensated for selling shares of the Fund at
the time of their sale by the Distributor and/or Selected Broker-Dealer. In
addition, some sales personnel of the Selected Broker-Dealer will receive
various types of non-cash compensation as special sales incentives, including
trips, educational and/or business seminars and merchandise. The Fund and the
Distributor reserve the right to reject any purchase orders.
 
    ANALOGOUS DEAN WITTER FUNDS.  The Distributor and the Investment Manager
serve in the same capacities for Dean Witter Multi-State Municipal Series Trust,
California Series, an open-end investment company with investment objectives and
policies similar to those of the Fund. Unlike the Fund, however, shares of Dean
Witter Multi-State Municipal Series Trust, California Series, are offered to the
public with a sales charge imposed at the time of purchase, rather than a
contingent deferred sales charge assessed upon redemptions within six years of
purchase. These two Dean Witter Funds have differing fees and expenses, which
will affect performance. Investors who would like to receive a prospectus for
Dean Witter Multi-State Municipal Series Trust, California Series, should call
the telephone numbers listed on the front cover of this Prospectus, or may call
their account executive for additional information.
 
PLAN OF DISTRIBUTION
 
   
    The Fund has adopted a Plan of Distribution, pursuant to Rule 12b-1 of the
Act (the "Plan"), under which the Fund pays the Distributor a fee, which is
accrued daily and payable monthly, at an annual rate of 0.75% of the lesser of:
(a) the average daily aggregate gross sales of the Fund's shares since the
inception of the Fund (not including reinvestments of dividends or capital gains
distributions), less the average daily aggregate net asset value of the Fund's
shares redeemed since the Fund's inception upon which a contingent deferred
sales charge has been imposed or waived, or (b) the Fund's average daily net
assets. Of the amount accrued under the Plan, 0.20% of the Fund's average daily
net assets is characterized as a service fee within the meaning of the NASD
guidelines. The service fee is a payment made for personal service and/or the
maintenance of shareholder accounts. The 12b-1 fee is treated by the Fund as an
expense in the year it is accrued. Amounts paid under the Plan are paid to the
Distributor to compensate it for the services provided and the expenses borne by
the Distributor and others in the distribution of the Fund's shares, including
the payment of commissions for sales of the Fund's shares and incentive
compensation to and expenses of account executives and other employees of DWR,
its affiliates and other Selected Broker-Dealers who engage in or support
distribution of shares or who service shareholder accounts, including overhead
and telephone expenses; printing and distribution of prospectuses and reports
used in connection with the offering of the Fund's shares to other than current
shareholders; and preparation, printing and distribution of sales literature and
advertising materials. For the fiscal year ended December 31, 1996, the Fund
accrued payments under the Plan amounting to $7,504,744, which amount is equal
to 0.75% of the Fund's average daily net assets for the fiscal year. The
payments accrued under the Plan were
    
calcu-
 
                                       13
<PAGE>
lated pursuant to clause (b) of the compensation formula under the Plan.
 
   
    At any given time, the expenses of distributing shares of the Fund may be in
excess of the total of (i) the payments made by the Fund pursuant to the Plan
and (ii) the proceeds of contingent deferred sales charges paid by investors
upon redemption of shares (see "Redemptions and Repurchases-- Contingent
Deferred Sales Charge"). For example, if $1 million in expenses in distributing
shares of the Fund had been incurred and $750,000 had been received as described
in (i) and (ii) above, the excess expense would amount to $250,000. The
Distributor has advised the Fund that the excess distribution expenses,
including the carrying charge described above, totalled $3,649,503 at December
31, 1996, which was equal to 0.37% of the Fund's net assets on such date.
Because there is no requirement under the Plan that the Distributor be
reimbursed for all its expenses or any requirement that the Plan be continued
from year to year, this excess amount does not constitute a liability of the
Fund. Although there is no legal obligation for the Fund to pay expenses
incurred by the Distributor in excess of payments made to the Distributor under
the Plan, if for any reason the Plan is terminated the Trustees will consider at
that time the manner in which to treat such expenses. Any cumulative expenses
incurred, but not yet recovered through distribution fees or contingent deferred
sales charges, may or may not be recovered through future distribution fees or
contingent deferred sales charges.
    
 
DETERMINATION OF NET ASSET VALUE
 
    The net asset value per share of the Fund is determined once daily at 4:00
p.m., New York time (or, on days when the New York Stock Exchange closes prior
to 4:00 p.m., at such earlier time) on each day that the New York Stock Exchange
is open by taking the value of all assets of the Fund, subtracting its
liabilities, dividing by the number of shares outstanding and adjusting to the
nearest cent. The net asset value per share will not be determined on Good
Friday and on such other federal and non-federal holidays as are observed by the
New York Stock Exchange.
 
    Certain of the Fund's portfolio securities may be valued for the Fund by an
outside independent pricing service approved by the Fund's Board of Trustees.
The pricing service utilizes a computerized grid matrix of tax-exempt securities
and evaluations by its staff in determining what it believes is the fair value
of the Fund's portfolio securities. The Board believes that timely and reliable
market quotations are generally not readily available to the Fund for purposes
of valuing tax-exempt securities and that the valuations supplied by the pricing
service are more likely to approximate the fair value of such securities.
 
    Short-term taxable debt securities with remaining maturities of sixty days
or less to maturity at time of purchase are valued at amortized cost, unless the
Board of Trustees determines such does not reflect the securities' market value,
in which case these securities will be valued at their fair market value as
determined by the Board of Trustees. The value of other assets will be
determined in good faith under procedures established by and under the
supervision of the Board of Trustees.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  All income dividends
and capital gains distributions are automatically paid in full and fractional
shares of the Fund (or, if specified by the Shareholder, any other open-end
investment company for which InterCapital serves as investment manager
(collectively, with the Fund, the "Dean Witter Funds")), unless the shareholder
requests they be paid in cash. Shares so acquired are not subject to the
imposition of a contingent deferred sales
 
                                       14
<PAGE>
   
charge upon their redemption (see "Redemptions and Repurchases"). Such dividends
and distributions will be paid, at the net asset value per share, in shares of
the Fund (or in cash if the shareholder so requests) on the monthly payment
date, which will be no later than the last business day of the month for which
the dividend or distribution is payable. Processing of dividend checks begins
immediately following the monthly payment date. Shareholders who have requested
to receive dividends in cash will normally receive their monthly dividend check
during the first ten days of the following month.
    
 
    EASYINVEST-SM-.  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account, on a semi-monthly,
monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund (see "Purchase of Fund Shares" and "Redemptions and
Repurchases -- Involuntary Redemption").
 
   
    INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS RECEIVED IN CASH.  Any shareholder
who receives a cash payment representing a dividend or capital gains
distribution may invest such dividend or distribution at the net asset value per
share next determined after receipt by the Transfer Agent, by returning the
check or the proceeds to the Transfer Agent within thirty days after the payment
date. Shares so acquired are not subject to the imposition of a contingent
deferred sales charge upon their redemption (see "Redemptions and Repurchases").
    
 
   
    SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders who own or purchase shares of the Fund
having a minimum value of $10,000 based upon the then current net asset value.
The Withdrawal Plan provides for monthly or quarterly (March, June, September
and December) checks in any dollar amount, not less than $25 or in any whole
percentage of the account balance, on an annualized basis. Any applicable
contingent deferred sales charge will be imposed on shares redeemed under the
Withdrawal Plan (See "Redemptions and Repurchases--Contingent Deferred Sales
Charge"). Therefore, any shareholder participating in the Withdrawal Plan will
have sufficient shares redeemed from his or her account so that the proceeds
(net of any applicable contingent deferred sales charge) to the shareholder will
be the designated monthly or quarterly amount.
    
 
    Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about any of the
above services.
 
EXCHANGE PRIVILEGE
 
    The Fund makes available to its shareholders an "Exchange Privilege"
allowing the exchange of shares of the Fund for shares of other Dean Witter
Funds sold with a contigent deferred sales charge ("CDSC funds") and for shares
of Dean Witter Short-Term U.S. Treasury Trust, Dean Witter Limited Term
Municipal Trust, and Dean Witter Short-Term Bond Fund, Dean Witter Balanced
Growth Fund, Dean Witter Balanced Income Fund, Dean Witter Intermediate Term
U.S. Treasury Trust, and five Dean Witter Funds which are money market funds
(the foregoing eleven non-CDSC or FESC funds are hereinafter collectively
referred to in this section as the "Exchange Funds"). Exchanges may be made
after the shares of the Fund acquired by purchase (not by exchange or dividend
reinvestment) have been held for thirty days. There is no waiting period for
exchanges of shares acquired by exchange or dividend reinvestment.
 
    An exchange to another CDSC fund or any Exchange Fund that is not a money
market fund is on the basis of the next calculated net asset value per share of
each fund after the exchange order is received. When exchanging into a money
market fund from the Fund, shares of the Fund are redeemed out of the Fund at
their next calculated net asset value and the proceeds of the redemption are
used to purchase shares of the money market fund at their net asset value
determined the following business day. Subsequent exchanges between any of the
money market funds and any of the
 
                                       15
<PAGE>
CDSC funds can be effected on the same basis. No contingent deferred sales
charge ("CDSC") is imposed at the time of any exchange, although any applicable
CDSC will be imposed upon ultimate redemption. Shares of the Fund acquired in
exchange for shares of another CDSC fund having a different CDSC schedule than
that of this Fund will be subject to the CDSC schedule of this Fund, even if
such shares are subsequently re-exchanged for shares of the CDSC fund originally
purchased. During the period of time the shareholder remains in the Exchange
Funds (calculated from the last day of the month in which the Exchange Funds
shares were acquired), the holding period (for the purpose of determining the
rate of the CDSC) is frozen. If those shares are subsequently reexchanged for
shares of a CDSC fund, the holding period previously frozen when the first
exchange was made resumes on the last day of the month in which shares of a CDSC
fund are reacquired. Thus, the CDSC is based upon the time (calculated as
described above) the shareholder was invested in a CDSC fund (see "Redemptions
and Repurchases--Contingent Deferred Sales Charge"). However, in the case of
shares of the Fund exchanged into the Exchange Funds on or after April 23, 1990,
upon a redemption of shares which results in a CDSC being imposed, a credit (not
to exceed the amount of the CDSC) will be given in an amount equal to the
Exchange Funds 12b-1 distribution fees incurred on or after that date which are
attributable to those shares. (The Exchange Funds' 12b-1 distribution fees are
described in the prospectus for these funds.)
 
    In addition, shares of the Fund may be acquired in exchange for shares of
Dean Witter Funds sold with a front-end sales charge ("FESC funds"), but shares
of the Fund, however acquired, may not be exchanged for shares of FESC funds.
Shares of a CDSC fund acquired in exchange for shares of a FESC fund (or in
exchange for shares of other Dean Witter Funds for which shares of a FESC fund
have been exchanged) are not subject to any CDSC upon their redemption.
 
    Purchases and exchanges should be made for investment purposes only. A
pattern of frequent exchanges may be deemed by the Investment Manager to be
abusive and contrary to the best interests of the Fund's other shareholders and,
at the Investment Manager's discretion, may be limited by the Fund's refusal to
accept additional purchases and/ or exchanges from the investor. Although the
Fund does not have any specific definition of what constitutes a pattern of
frequent exchanges, and will consider all relevant factors in determining
whether a particular situation is abusive and contrary to the best interests of
the Fund and its other shareholders, investors should be aware that the Fund and
each of the other Dean Witter Funds may in their discretion limit or otherwise
restrict the number of times this Exchange Privilege may be exercised by any
investor. Any such restriction will be made by the Fund on a prospective basis
only, upon notice to the shareholder not later than ten days following such
shareholder's most recent exchange.
 
    Also, the Exchange Privilege may be terminated or revised at any time by the
Fund and/or any of such Dean Witter Funds for which shares of the Fund may be
exchanged, upon such notice as may be required by applicable regulatory
agencies. Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their account executive regarding restrictions on
exchange of shares of the Fund pledged in their margin account.
 
    The current prospectus for each fund describes its investment objective(s)
and policies, and shareholders should obtain one and read it carefully before
investing. Exchanges are subject to the minimum investment requirement and any
other conditions imposed by each fund. An exchange will be treated for federal
income tax purposes the same as a repurchase or redemption of shares on which
the shareholder has realized a capital gain or loss. However, the ability to
deduct capital losses on an exchange may be limited in situations where there is
an exchange of shares within ninety days after the shares are purchased. The
Exchange Privilege is only available in states where an exchange may legally be
made.
 
                                       16
<PAGE>
    If DWR or another Selected Broker-Dealer is the current dealer of record and
its account numbers are part of the account information, shareholders may
initiate an exchange of shares of the Fund for shares of any of the Dean Witter
Funds (for which the Exchange Privilege is available) pursuant to this Exchange
Privilege by contacting their account executive (no Exchange Privilege
Authorization Form is required). Other shareholders (and those shareholders who
are clients of DWR or other Selected Broker-Dealers but who wish to make
exchanges directly by writing or telephoning the Transfer Agent) must complete
and forward to the Transfer Agent an Exchange Privilege Authorization Form,
copies of which may be obtained from the Transfer Agent, to initiate an
exchange. If the Authorization Form is used, exchanges may be made in writing or
by contacting the Transfer Agent at (800) 869-NEWS (toll-free). The Fund will
employ reasonable procedures to confirm that exchange instructions communicated
over the telephone are genuine. Such procedures may include requiring various
forms of personal identification such as name, mailing address, social security
or other tax identification number and DWR or other Selected Dealer account
number (if any). Telephone instructions may also be recorded. If such procedures
are not employed, the Fund may be liable for any losses due to unauthorized or
fraudulent instructions.
 
    Telephone exchange instructions will be accepted if received by the Transfer
Agent between 9:00 a.m. and 4:00 p.m. New York time, on any day the New York
Stock Exchange is open. Any shareholder wishing to make an exchange who has
previously filed an Exchange Privilege Authorization Form and who is unable to
reach the Fund by telephone should contact his or her DWR or other Selected
Broker-Dealer account executive, if appropriate, or make a written exchange
request. Shareholders are advised that 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 Dean Witter
Funds in the past.
 
    Additional information concerning the Exchange Privilege is available from a
DWR or other Selected Broker-Dealer account executives or the Transfer Agent.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  Shares of the Fund can be redeemed for cash at any time at the
net asset value per share next determined; however, such redemption proceeds may
be reduced by the amount of any applicable contingent deferred sales charges
(see below). If shares are held in a shareholder's account without a share
certificate, a written request for redemption to the Fund's Transfer Agent at
P.O. Box 983, Jersey City, New Jersey 07303 is required. If certificates are
held by the shareholder(s), the shares may be redeemed by surrendering the
certificate(s) with a written request of
redemption, along with any additional information required by the Transfer
Agent.
   
    CONTINGENT DEFERRED SALES CHARGE.  Shares of the Fund which are held for six
years or more after purchase (calculated from the last day of the month in which
the shares were purchased) will not be subject to any charge upon redemption.
Shares redeemed sooner than six years after purchase will, however, be subject
to a charge upon redemption. This charge is called a "contingent deferred sales
    
 
                                       17
<PAGE>
charge" ("CDSC"), which will be a percentage of the dollar amount of shares
redeemed and will be assessed on an amount equal to the lesser of the current
market value or the cost of the shares being redeemed. The size of this
percentage will depend upon how long the shares have been held, as set forth in
the table below:
 
<TABLE>
<CAPTION>
                                       CONTINGENT DEFERRED
            YEAR SINCE                     SALES CHARGE
             PURCHASE                   ON A PERCENTAGE OF
           PAYMENT MADE                  AMOUNT REDEEMED
- -----------------------------------  ------------------------
<S>                                  <C>
First..............................              5.0%
Second.............................              4.0%
Third..............................              3.0%
Fourth.............................              2.0%
Fifth..............................              2.0%
Sixth..............................              1.0%
Seventh and thereafter.............           None
</TABLE>
 
    A CDSC will not be imposed on: (i) any amount which represents an increase
in value of shares purchased within the six years preceding the redemption; (ii)
the current net asset value of shares purchased more than six years prior to the
redemption; and (iii) the current net asset value of shares purchased through
reinvestment of dividends or distributions and/or shares acquired in exchange
for shares of Dean Witter Funds sold with a front-end sales charge or of other
Dean Witter Funds acquired in exchange for such shares. Moreover, in determining
whether a CDSC is applicable it will be assumed that amounts described in (i),
(ii), and (iii) above (in that order) are redeemed first.
 
    In addition, the CDSC, if otherwise applicable, will be waived in the case
of:
 
    (1) redemptions of shares held at the time a shareholder dies or becomes
disabled, only if the shares are: (A) registered either in the name of an
individual shareholder (not a trust), or in the names of such shareholder and
his or her spouse as joint tenants with right of survivorship; or (B) held in a
qualified corporate or self-employed retirement plan, Individual Retirement
Account ("IRA") or Custodial Account under Section 403(b)(7) of the Internal
Revenue Code ("403(b) Custodial Account"), provided in either case that the
redemption is requested within one year of the death or initial determination of
disability;
 
    (2) redemptions in connection with the following retirement plan
distributions: (A) lump-sum or other distributions from a qualified corporate or
self-employed retirement plan following retirement (or, in the case of a "key
employee" of a "top heavy" plan, following attainment of age 59 1/2); (B)
distributions from an IRA or 403(b) Custodial Account following attainment of
age 59 1/2; or (C) a tax-free return of an excess contribution to an IRA; and
 
   
    (3) all redemptions of shares held for the benefit of a participant in a
corporate or self-employed retirement plan qualified under Section 41(k) of the
Internal Revenue Code which offers investment companies managed by the
Investment Manager or its subsidiary, Dean Witter Services Company Inc., as
self-directed investment alternatives and for which Dean Witter Trust Company or
Dean Witter Trust FSB, each of which is an affiliate of the Investment Manager,
serves as Trustee ("Eligible 401(k) Plan"), provided that either: (A) the plan
continues to be an Eligible 401(k) Plan after the redemption; or (B) the
redemption is in connection with the complete termination of the plan involving
the distribution of all plan assets to participants.
    
 
    With reference to (1) above, for the purpose of determining disability, the
Distributor utilizes the definition of disability contained in Section 72(m)(7)
of the Internal Revenue Code, which relates to the inability to engage in
gainful employment. With reference to (2) above, the term "distribution" does
not encompass a direct transfer of IRA, 403(b) Custodial Account or retirement
plan assets to a successor custodian or trustee. All waivers will be granted
only following receipt by the Distributor of confirmation of the shareholder's
entitlement.
 
    REPURCHASE.  DWR and other Selected Broker-Dealers are authorized to
repurchase shares represented by a share certificate which is delivered to any
of their offices. Shares held in a shareholder's
 
                                       18
<PAGE>
account without a share certificate may also be repurchased by DWR or other
Selected Broker-Dealers upon the telephonic request of the shareholder. The
repurchase price is the net asset value next computed (see "Purchase of Fund
Shares") after such repurchase order is received by DWR or other Selected
Broker-Dealers, reduced by any applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed upon repurchase by the Fund,
the Distributor or DWR. The offer by DWR or other Selected Broker-Dealers to
repurchase shares may be suspended without notice by them at any time. In that
event, shareholders may redeem their shares through the Fund's Transfer Agent as
set forth above under "Redemption."
 
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  Payment for shares presented
for repurchase or redemption will be made by check within seven days after
receipt by the Transfer Agent of the certificate and/or written request in good
order. Such payment may be postponed or the right of redemption suspended under
unusual circumstances. If the shares to be redeemed have recently been purchased
by check, payment of the redemption proceeds may be delayed for the minimum time
needed to verify that the check used for investment has been honored (not more
than fifteen days from the time of receipt of the check by the Transfer Agent).
Shareholders maintaining margin accounts with DWR or other Selected
Broker-Dealers are referred to their account executive regarding restrictions on
redemption of shares of the Fund pledged in their margin account.
 
    REINSTATEMENT PRIVILEGE.  A shareholder who has had his or her shares
redeemed or repurchased and has not previously exercised this reinstatement
privilege may, within thirty days after the date of the redemption or
repurchase, reinstate any portion or all of the proceeds of such redemption or
repurchase in shares of the Fund at the net asset value next determined after a
reinstatement request, together with the proceeds, is received by the Transfer
Agent and receive a pro-rata credit for any CDSC paid in connection with such
redemption or repurchase.
 
   
    INVOLUNTARY REDEMPTION.  The Fund reserves the right to redeem, on sixty
days' notice and at net asset value, the shares of any shareholder (other than
shares held in an Individual Retirement Account or Custodial Account under
Section 403(b)(7) of the Internal Revenue Code) whose shares due to redemptions
by the shareholder have a value of less than $100 or such lesser amount as may
be fixed by the Board of Trustees or, in the case of an account opened through
EasyInvest, if after twelve months, the shareholder has invested less than
$1,000 in the account. However, before the Fund redeems such shares and sends
the proceeds to the shareholder, it will notify the shareholder that the value
of the shares is less than the applicable amount and allow him or her sixty days
to make an additional investment in an amount which will increase the value of
his or her account to at least the applicable amount or more before the
redemption is processed. No CDSC will be imposed on any involuntary redemption.
    
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    DIVIDENDS AND DISTRIBUTIONS.  The Fund declares dividends from net
investment income on each day the New York Stock Exchange is open for business
(see "Purchase of Fund Shares"). Such dividends are payable monthly. The Fund
intends to distribute all of the Fund's net investment income on an annual
basis.
 
    The Fund will distribute at least once each year all net short-term capital
gains, if there are any. The Fund may, however, determine either to distribute
or to retain all or part of any net long-term capital gains in any year for
reinvestment. All dividends and capital gains distributions will be paid in
additional Fund shares (without sales charge) and automatically
 
                                       19
<PAGE>
credited to the shareholder's account without issuance of a share certificate
unless the shareholder requests in writing that all dividends be paid in cash.
(See "Shareholder Services--Automatic Investment of Dividends and
Distributions".) Taxable capital gains may be generated by transactions in
options and futures contracts engaged in by the Fund. Any dividends or
distributions declared in the last quarter of any calendar year which are paid
in the following year prior to February 1, will be deemed received by
shareholders of record in the prior calendar year.
 
    TAXES.  Because the Fund intends to distribute substantially all of its net
investment income and capital gains to shareholders and intends to otherwise
comply with all the provisions of Subchapter M of the Internal Revenue Code (the
"Code") to qualify as a regulated investment company, it is not expected that
the Fund will be required to pay any federal income tax.
 
    The Fund intends to qualify to pay "exempt-interest dividends" to its
shareholders by maintaining, as of the close of each quarter of its taxable
year, at least 50% of the value of its total assets in tax-exempt securities. If
the Fund satisfies such requirement, then distributions from net investment
income to shareholders will be exempt from federal taxation to the extent net
investment income is represented by interest on tax-exempt securities.
Shareholders generally will not incur any federal income tax on the amount of
exempt-interest dividends received by them from the Fund, whether taken in cash
or reinvested in additional shares. Exempt-interest dividends are included,
however, in determining what portion, if any, of a person's Social Security
benefits are subject to federal income tax.
 
    The Code may subject interest received on certain otherwise tax-exempt
securities to an alternative minimum tax. This alternative minimum tax may be
incurred due to interest received on "private activity bonds" (in general, bonds
that benefit non-government entities) issued after August 7, 1986 which,
although tax-exempt, are used for purposes other than those generally performed
by governmental units (e.g., bonds used for commercial or housing purposes).
Income received on such bonds is classified as a "tax preference item", under
the alternative minimum tax, for both individual and corporate investors. A
portion of the Fund's investments may be made in such "private activity bonds,"
with the result that 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. In addition, certain corporations which are subject to the
alternative minimum tax may have to include a portion of exempt-interest
dividends in calculating their alternative minimum taxable income in situations
where the "adjusted current earnings" of the corporation exceeds its alternative
minimum taxable income.
 
    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 obligations of the United States which pay interest
excludable from income) at the end of each quarter of its taxable year in order
to be eligible to pay dividends which will be exempt from California personal
income tax. Shareholders who are California residents will not incur any federal
or California income tax on the amount of exempt-interest dividends received by
them from the Fund and derived from California state and local issues, whether
taken in cash or reinvested in additional shares.
 
    After the end of the calendar year, the shareholders will be sent a
statement indicating the percentage of the dividend distributions for such
fiscal year which constitutes exempt-interest dividends and the percentage, if
any, that is taxable, and the percentage, if any, of the exempt-interest
dividends which constitutes an item of tax preference. 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 tax
purposes. Moreover, unlike federal law, an individual's Social Security benefits
are not subject to California personal income tax, so that the receipt of
 
                                       20
<PAGE>
California exempt-interest dividends will have no effect on an individual's
California personal income tax.
 
    Under the Revenue Reconciliation Act of 1993, all or a portion of the Fund's
gain from the sale or redemption of tax-exempt obligations purchased at a market
discount after April 30, 1993 will be treated as ordinary income rather than
capital gain. This rule may increase the amount of ordinary income dividends
received by shareholders.
 
    Shareholders will normally be subject to federal and California personal
income tax on dividends paid from interest income derived from taxable
securities and on distributions of net capital gains. For federal income tax and
California personal income tax purposes, distributions of long-term capital
gains, if any, are taxable to shareholders as long-term capital gains,
regardless of how long a shareholder has held the Fund's shares and regardless
of whether the distribution is received in additional shares or in cash. In
addition, unlike federal law, the shareholders of the Fund will not be subject
to tax, or receive a credit for tax paid by the Fund, on undistributed capital
gains, if any. To avoid being subject to a 31% backup withholding tax on taxable
dividends and capital gains distributions and the proceeds of redemptions and
repurchases, shareholders' taxpayer identification numbers must be furnished and
certified as to accuracy.
 
   
    The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources will, in effect, represent a return of
a portion of each shareholder's investment. All, or a portion, of such payments
will not be taxable to shareholders.
    
 
    Any loss on the sale or exchange of shares of the Fund which are held for
six months or less is disallowed to the extent of the amount of any
exempt-interest dividend paid with respect to such shares. Treasury Regulations
may provide for a reduction in such required holding periods. If a shareholder
receives a distribution that is taxed as a long-term capital gain on shares held
for six months or less and sells those shares at a loss, the loss will be
treated as a long-term capital loss.
 
    Interest on indebtedness incurred by shareholders or related parties to
purchase or carry shares of an investment company paying exempt-interest
dividends, such as the Fund, will not be deductible by the investor for federal
or 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 this Prospectus. Distributions
from investment income and capital gains, including exempt-interest dividends,
may be subject to California franchise taxes if received by a corporation doing
business in California, to state taxes in states other than California and to
local taxes.
 
   
    Shareholders should consult their tax adviser as to the applicability of the
above to their own tax situation.
    
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    From time to time the Fund may quote its "yield" and/or its "total return"
in advertisements and sales literature. Both the yield and the total return of
the Fund are based on historical earnings and are not intended to indicate
future performance. The yield of the Fund is computed by dividing the Fund's net
investment income over a 30-day period by an average value (using the average
number of shares entitled to receive dividends and the net asset value per share
at the end of the period), all in accordance with applicable regulatory
requirements. Such amount is compounded for six months and then annualized for a
twelve-month period to derive the Fund's yield. The Fund may also quote its
tax-equivalent yield, which is calculated by determining the pre-tax yield
which, after being taxed at a stated rate, would be equivalent to the yield
determined as described above.
 
                                       21
<PAGE>
   
    The "average annual total return" of the Fund refers to a figure reflecting
the average annualized percentage increase (or decrease) in the value of an
initial investment in the Fund of $1,000 over a period of one, five, ten years,
or over the life of the Fund. Average annual total return reflects all income
earned by the Fund, any appreciation or depreciation of the Fund's assets, all
expenses incurred by the Fund and all sales charges which would be incurred by
redeeming shareholders, for the stated periods. It also assumes reinvestment of
all dividends and distributions paid by the Fund.
    
 
    In addition to the foregoing, the Fund may advertise its total return over
different periods of time by means of aggregate, average, year-by-year or other
types of total return figures. Such calculations may or may not reflect the
deduction of the contingent deferred sales charge which, if reflected, would
reduce the performance quoted. The Fund may also advertise the growth of
hypothetical investments of $10,000, $50,000 and $100,000 in shares of the Fund.
The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes compiled by independent organizations
(such as mutual fund performance rankings of Lipper Analytical Services, Inc.)
 
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
    VOTING RIGHTS.  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 is not required to hold Annual Meetings of Shareholders and, under
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 Act or the Declaration of Trust. Under certain
circumstances the Trustees may be removed by action of the Trustees or by the
Shareholders.
    
 
    Under Massachusetts law, shareholders of a business trust may, under certain
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 Fund
obligations include such disclaimer, and provides for indemnification and
reimbursement of expenses 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, in the opinion of
Massachusetts counsel to the Fund, the risk to Fund shareholders of personal
liability is remote.
 
    CODE OF ETHICS.  Directors, officers and em-
ployees of InterCapital, Dean Witter Services Company Inc. and the Distributor
are subject to a strict Code of Ethics adopted by those companies. The Code of
Ethics is intended to ensure that the interests of shareholders and other
clients are placed ahead of any personal interest, that no undue personal
benefit is obtained from a person's employment activities and that actual and
potential conflicts of interest are avoided. To achieve these goals and comply
with regulatory requirements, the Code of Ethics requires, among other things,
that personal securities transactions by employees of the companies be subject
to an advance clearance process to monitor that no Dean Witter Fund is engaged
at the same time in a purchase or sale of the same security. The Code of Ethics
bans the purchase of securities in an initial public offering and prohibits
engaging in futures and options transactions and profiting on short-term trading
(that is, a purchase within sixty days of a sale or a sale within sixty days of
a purchase) of a security. In addition, investment
person-
 
                                       22
<PAGE>
   
nel may not purchase or sell a security for their personal account within thirty
days before or after any transaction in any Dean Witter Fund managed by them.
Any violations of the Code of Ethics are subject to sanctions, including
reprimand, demotion or suspension or termination of employment. The Code of
Ethics comports with regulatory requirements and the recommendations in the 1994
report by the Investment Company Institute Advisory Group on Personal Investing.
    
 
    SHAREHOLDER INQUIRIES.  All inquiries regarding the Fund should be directed
to the Fund at the telephone numbers or address set forth on the front cover of
this Prospectus.
 
                                       23
<PAGE>
 
   
Dean Witter
California Tax-Free Income Fund
Two World Trade Center
New York, New York 10048
TRUSTEES
Michael Bozic                       Dean Witter
Charles A. Fiumefreddo              California
Edwin J. Garn                       Tax-Free
John R. Haire                       Income Fund
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
OFFICERS
Charles A. Fiumefreddo
Chairman and Chief Executive
Officer
Barry Fink
Vice President, Secretary and
General Counsel
James F. Willison
Vice President
Joseph R. Arcieri
Vice President
Thomas F. Caloia
Treasurer
CUSTODIAN
The Bank of New York
90 Washington Street
New York, New York 10286
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Dean Witter Trust Company
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
INDEPENDENT ACCOUNTANTS
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
INVESTMENT MANAGER
Dean Witter InterCapital Inc.
                                           PROSPECTUS -- MARCH 13, 1997
 
    
<PAGE>
STATEMENT OF ADDITIONAL INFORMATION
 
   
MARCH 13, 1997                                                       DEAN WITTER
    
                                                             CALIFORNIA TAX-FREE
                                                                     INCOME FUND
 
- --------------------------------------------------------------------------------
 
    Dean Witter California Tax-Free Income Fund (the "Fund") is an open-end,
diversified management investment company whose investment objective is to
provide a high level of current income exempt from both federal and California
income tax, consistent with the preservation of capital. The Fund invests
principally in California tax-exempt fixed-income securities which are rated in
the four highest categories by Moody's Investors Service, Inc. or Standard &
Poor's Corporation. (See "Investment Practices and Policies".)
 
   
    A Prospectus for the Fund dated March 13, 1997, which provides the basic
information you should know before investing in the Fund, may be obtained
without charge from the Fund at the address or telephone numbers listed below or
from the Fund's Distributor, Dean Witter Distributors Inc., or from Dean Witter
Reynolds Inc. at any of its branch offices. This Statement of Additional
Information is not a Prospectus. It contains information in addition to and more
detailed than that set forth in the Prospectus. It is intended to provide
additional information regarding the activities and operations of the Fund, and
should be read in conjunction with the Prospectus.
    
 
Dean Witter
California Tax-Free Income Fund
Two World Trade Center
New York, New York 10048
(212) 392-2550 or
   
(800) 869-NEWS (toll-free)
    
<PAGE>
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                                                                      <C>
The Fund and its Management............................................................          3
Trustees and Officers..................................................................          6
Investment Practices and Policies......................................................         11
Investment Restrictions................................................................         18
Portfolio Transactions and Brokerage...................................................         19
The Distributor........................................................................         23
Shareholder Services...................................................................         27
Redemptions and Repurchases............................................................         31
Dividends, Distributions and Taxes.....................................................         34
Performance Information................................................................         37
Shares of the Fund.....................................................................         38
Custodian and Transfer Agent...........................................................         39
Independent Accountants................................................................         39
Reports to Shareholders................................................................         39
Legal Counsel..........................................................................         39
Experts................................................................................         39
Registration Statement.................................................................         40
Report of Independent Accountants......................................................         41
Financial Statements -- December 31, 1996..............................................         42
Appendix...............................................................................         56
</TABLE>
    
 
                                       2
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
THE FUND
 
    The Fund is a Trust of the type commonly known as a "Massachusetts business
trust" and was organized under the laws of the Commonwealth of Massachusetts on
April 9, 1984.
 
THE INVESTMENT MANAGER
 
   
    Dean Witter InterCapital Inc., a Delaware corporation, (the "Investment
Manager" or "InterCapital"), whose address is Two World Trade Center, New York,
New York 10048, is the Fund's Investment Manager. InterCapital is a wholly-owned
subsidiary of Dean Witter, Discover & Co. ("DWDC"), a Delaware corporation. In
an internal reorganization which took place in January, 1993, InterCapital
assumed the investment advisory, administrative and management activities
previously performed by the InterCapital Division of Dean Witter Reynolds Inc.
("DWR"), a broker-dealer affiliate of InterCapital. (As hereinafter used in this
Statement of Additional Information, the terms "InterCapital" and "Investment
Manager" refer to DWR's InterCapital Division prior to the internal
reorganization and Dean Witter InterCapital Inc. thereafter.) The daily
management of the Fund and research relating to the Fund's portfolio is
conducted by or under the direction of officers of the Fund and of the
Investment Manager, subject to periodic review by the Fund's Board of Trustees.
Information as to these trustees and officers is contained under the caption
"Trustees and Officers."
    
 
   
    InterCapital is also the investment manager or investment adviser of the
following management investment companies: Active Assets Money Trust, Active
Assets Tax-Free Trust, Active Assets Government Securities Trust, Active Assets
California Tax-Free Trust, Dean Witter Liquid Asset Fund Inc., InterCapital
Income Securities Inc., Dean Witter High Yield Securities Inc., Dean Witter
Tax-Free Daily Income Trust, Dean Witter Developing Growth Securities Trust,
Dean Witter American Value Fund, Dean Witter Dividend Growth Securities Inc.,
Dean Witter Natural Resource Development Securities Inc., Dean Witter U.S.
Government Money Market Trust, Dean Witter Tax-Exempt Securities Trust, Dean
Witter Variable Investment Series, Dean Witter World Wide Investment Trust, Dean
Witter Select Municipal Reinvestment Fund, Dean Witter U.S. Government
Securities Trust, Dean Witter New York Tax-Free Income Fund, Dean Witter
Convertible Securities Trust, Dean Witter Federal Securities Trust, Dean Witter
Value-Added Market Series, High Income Advantage Trust, Dean Witter Government
Income Trust, Dean Witter Utilities Fund, Dean Witter Strategist Fund, Dean
Witter California Tax-Free Daily Income Trust, High Income Advantage Trust II,
Dean Witter World Wide Income Trust, Dean Witter Intermediate Income Securities,
Dean Witter Capital Growth Securities, Dean Witter European Growth Fund Inc.,
Dean Witter Pacific Growth Fund Inc., Dean Witter Precious Metals and Minerals
Trust, Dean Witter Global Short-Term Income Fund Inc., Dean Witter Multi-State
Municipal Series Trust, InterCapital Insured Municipal Bond Trust, InterCapital
Quality Municipal Investment Trust, Dean Witter Premier Income Trust, Dean
Witter New York Municipal Money Market Trust, Dean Witter Short-Term U.S.
Treasury Trust, InterCapital Insured Municipal Trust, InterCapital Quality
Municipal Income Trust, Dean Witter Diversified Income Trust, Dean Witter Health
Sciences Trust, Dean Witter Retirement Series, InterCapital Quality Municipal
Securities, InterCapital California Quality Municipal Securities, InterCapital
New York Quality Municipal Securities, Dean Witter Global Dividend Growth
Securities, Dean Witter Limited Term Municipal Trust, Dean Witter Short-Term
Bond Fund, Dean Witter Global Utilities Fund, Dean Witter National Municipal
Trust, Dean Witter High Income Securities, Dean Witter International SmallCap
Fund, Dean Witter Mid-Cap Growth Fund, Dean Witter Select Dimensions Investment
Series, Dean Witter Global Asset Allocation Fund, Dean Witter Intermediate Term
U.S. Treasury Trust, Dean Witter Balanced Growth Fund, Dean Witter Balanced
Income Fund, Dean Witter Hawaii Municipal Trust, Dean Witter Capital
Appreciation Fund, Dean Witter Information Fund, Dean Witter Japan Fund, Dean
Witter Income Builder Fund, Dean Witter Special Value Fund, Dean Witter
Financial Services Trust, Dean Witter Market Leader Trust, InterCapital Insured
Municipal Securities, InterCapital Insured California Municipal Securities,
InterCapital Insured Municipal Income Trust, InterCapital California Insured
Municipal Income Trust, High Income Advantage Trust III, Municipal Income Trust,
Municipal Income Trust II, Municipal Income Trust III, Municipal Income
Opportunities Trust, Municipal Income Opportunities Trust II, Municipal Income
    
 
                                       3
<PAGE>
   
Opportunities Trust III, Prime Income Trust and Municipal Premium Income Trust.
The foregoing investment companies, together with the Fund, are collectively
referred to as the Dean Witter Funds. In addition, Dean Witter Services Company
Inc. ("DWSC"), a wholly-owned subsidiary of InterCapital, serves as manager for
the following companies for which TCW Funds Management, Inc. is the investment
adviser: TCW/DW Core Equity Trust, TCW/DW North American Government Income
Trust, TCW/ DW Latin American Growth Fund, TCW/DW Income and Growth Fund, TCW/DW
SmallCap Growth Fund, TCW/DW Balanced Fund, TCW/DW Mid-Cap Equity Trust, TCW/DW
Total Return Trust, TCW/DW Global Telecom Trust, TCW/DW Strategic Income Trust,
TCW/DW Emerging Markets Opportunities Trust, TCW/DW Term Trust 2000, TCW/DW Term
Trust 2002 and TCW/DW Term Trust 2003 (the "TCW/ DW Funds"). InterCapital also
serves as: (i) sub-adviser to Templeton Global Opportunities Trust, an open-end
investment company; (ii) administrator of The BlackRock Strategic Term Trust
Inc., a closed-end investment company; and (iii) sub-administrator of MassMutual
Participation Investors and Templeton Global Governments Income Trust,
closed-end investment companies.
    
 
    Pursuant to an Investment Management Agreement (the "Agreement") with the
Investment Manager, the Fund has retained the Investment Manager to manage 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 such information and advice relating to the economy, securities
markets, and specific securities as it considers necessary or useful to
continuously manage the assets of the Fund in a manner consistent with its
investment objective and policies.
 
    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, such 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 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.
 
    Effective December 31, 1993, pursuant to a Services Agreement between
InterCapital and DWSC, DWSC began to provide the administrative services to the
Fund which were previously performed directly by InterCapital. On April 17,
1995, DWSC was reorganized in the State of Delaware, necessitating the entry
into a new Services Agreement by InterCapital and DWSC on that date. The
foregoing internal reorganizations did not result in any change in the nature or
scope of the administrative services being provided to the Fund or any of the
fees being paid by the Fund for the overall services being performed under the
terms of the existing Agreement.
 
    Expenses not expressly assumed by the Investment Manager under the Agreement
or by the Distributor of the Fund's shares, Dean Witter Distributors Inc.
("Distributors" or the "Distributor") (see "The Distributor") will be paid by
the Fund. The expenses borne by the Fund include, but are not limited to: fees
pursuant to any plan of distribution, charges and expenses of any registrar,
custodian, stock transfer and dividend disbursing agent; brokerage commissions;
taxes; engraving and printing stock 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 and statements of
additional information 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
 
                                       4
<PAGE>
Manager), and 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.
 
   
    As full compensation for the services and facilities furnished to the Fund
and expenses of the Fund assumed by the Investment Manager, the Fund pays the
Investment Manager monthly compensation calculated daily by applying the annual
rate of 0.55% to the portion of the Fund's net assets not exceeding $500
million; 0.525% to the portion of the Fund's net assets exceeding $500 million
but not exceeding $750 million, 0.50% to the portion of the Fund's net assets
exceeding $750 million but not exceeding $1 billion; and 0.475% of the portion
of daily net assets exceeding $1 billion. Total operating expenses of the Fund
are subject to applicable limitations under rules and regulations of states
where the Fund is authorized to sell its shares, as the same may be amended from
time to time. For the fiscal years ended December 31, 1994, 1995 and 1996, the
Fund accrued to the Investment Manager total compensation under the Agreement in
the amounts of $5,824,889, $5,513,580 and $5,313,150, respectively.
    
 
    The 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 Agreement does not restrict the Investment Manager from
acting as investment manager or adviser to others.
 
   
    The Agreement was initially approved by the Trustees on October 22, 1992 and
by the shareholders on January 12, 1993. The Agreement is substantially
identical to a prior investment management agreement which was initially
approved by the Board of Trustees on June 13, 1984 and by DWR as the then sole
shareholder of the Fund on June 26, 1984. The Agreement was also approved by the
vote of a majority, as defined in the Investment Company Act of 1940, as amended
(the "Act"), of the outstanding shares of the Fund, at the first Annual Meeting
of the Fund held on October 21, 1985. The Agreement took effect on June 30,
1993, upon the spin-off by Sears, Roebuck and Co. of its remaining shares of
DWDC. The Agreement may be terminated at any time, without penalty, on thirty
days' notice, by the Board of Trustees of the Fund, by the holders of a
majority, as defined in the Investment Company Act of 1940, as amended (the
"Act"), of the outstanding shares of the Fund, or by the Investment Manager. The
Agreement will automatically terminate in the event of its assignment (as
defined in the Act).
    
 
   
    Under its terms, the Agreement had an initial term ending April 30, 1994,
and provides that it will continue from year to year thereafter, provided
continuance of the Agreement is approved at least annually by the vote of the
holders of a majority (as defined in the Act) of the outstanding shares of the
Fund, or by the Board of Trustees of the Fund; provided that in either event
such continuance is approved annually by the vote of a majority of the
Independent Trustees, which vote must be cast in person at a meeting called for
the purpose of voting on such approval. At their meeting held on April 17, 1996,
the Fund's Board of Trustees, including all of the Independent Trustees,
approved continuance of the Agreement until April 30, 1997.
    
 
   
    The Fund has acknowledged that the name "Dean Witter" is a property right of
DWR. The Fund has agreed that DWR or its parent company may use or, at any time,
permit others to use, the name "Dean Witter." The Fund has also agreed that in
the event the Agreement is terminated, or if the affiliation between
InterCapital and its parent is terminated, the Fund will eliminate the name
"Dean Witter" from its name if DWR or its parent company shall so request.
    
 
                                       5
<PAGE>
TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------
 
   
    The Trustees and Executive Officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with
InterCapital, and with the 84 Dean Witter Funds and the 14 TCW/DW Funds are
shown below.
    
 
   
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Michael Bozic (56)              Chairman and Chief Executive Officer of Levitz
Trustee                         Furniture Corporation (since November, 1995);
c/o Levitz Furniture            Director or Trustee of the Dean Witter Funds;
Corporation                     formerly President and Chief Executive Officer of
6111 Broken Sound Parkway,      Hills Department Stores (May, 1991-July, 1995);
N.W.                            formerly variously Chairman, Chief Executive
Boca Raton, Florida             Officer, President and Chief Operating Officer
                                (1987-1991) of the Sears Merchandise Group of
                                Sears, Roebuck and Co.; Director of Eaglemark
                                Financial Services, Inc., the United Negro College
                                Fund and Weirton Steel Corporation.
Charles A. Fiumefreddo* (63)    Chairman, Chief Executive Officer and Director of
Chairman of the Board,          InterCapital, Distributors and DWSC; Executive
President, Chief Executive      Vice President and Director of DWR; Chairman,
Officer                         Director or Trustee, President and Chief Executive
 and Trustee                    Officer of the Dean Witter Funds; Chairman, Chief
Two World Trade Center          Executive Officer and Trustee of the TCW/DW Funds;
New York, New York              Chairman and Director of Dean Witter Trust Company
                                ("DWTC"); Director and/or officer of various DWDC
                                subsidiaries; formerly Executive Vice President
                                and Director of DWDC (until February, 1993).
Edwin J. Garn (64)              Director or Trustee of the Dean Witter Funds;
Trustee                         formerly United States Senator (R-Utah)
c/o Huntsman Corporation        (1974-1992) and Chairman, Senate Banking Committee
500 Huntsman Way                (1980-1986); formerly Mayor of Salt Lake City,
Salt Lake City, Utah 84111      Utah (1971-1974); formerly Astronaut, Space
                                Shuttle Discovery (April 12-19, 1985); Vice
                                Chairman, Huntsman Corporation (since January,
                                1993); Director of Franklin Quest (time management
                                systems) and John Alden Financial Corp. (health
                                insurance); member of the board of various civic
                                and charitable organizations.
John R. Haire (72)              Chairman of the Audit Committee and Chairman of
Trustee                         the Committee of Independent Directors or Trustees
Two World Trade Center          and Director or Trustee of the Dean Witter Funds;
New York, New York              Chairman of the Audit Committee and Chairman of
                                the Committee of the Independent Trustees and
                                Trustee of the TCW/DW Funds; formerly President,
                                Council for Aid to Education (1978-1989) and
                                Chairman and Chief Executive Officer of Anchor
                                Corporation, an Investment Adviser (1964-1978);
                                Director of Washington National Corporation
                                (insurance).
</TABLE>
    
 
                                       6
<PAGE>
 
   
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Dr. Manuel H. Johnson (47)      Senior Partner, Johnson Smick International, Inc.,
Trustee                         a consulting firm; Co-Chairman and a founder of
c/o Johnson Smick               the Group of Seven Council (G7C), an international
International, Inc.             economic commission; Director or Trustee of the
1133 Connecticut Avenue, N.W.   Dean Witter Funds; Trustee of the TCW/DW Funds;
Washington, DC                  Director of NASDAQ (since June, 1995); Director of
                                Greenwich Capital Markets, Inc., (broker-dealer);
                                Trustee of the Financial Accounting Foundation
                                (oversight organization for the FASB); formerly
                                Vice Chairman of the Board of Governors of the
                                Federal Reserve System (1986-1990) and Assistant
                                Secretary of the U.S. Treasury (1982-1986).
Michael E. Nugent (60)          General Partner, Triumph Capital, L.P., a private
Trustee                         investment partnership; Director or Trustee of the
Triumph Capital, L.P.           Dean Witter Funds, and Trustee of the TCW/DW
237 Park Avenue                 Funds; formerly Vice President, Bankers Trust
New York, New York              Company and BT Capital Corporation (1984-1988);
                                Director of various business organizations.
Philip J. Purcell* (53)         Chairman of the Board of Directors and Chief
Trustee                         Executive Officer of DWDC, DWR and Novus Credit
Two World Trade Center          Services Inc.; Director of InterCapital, DWSC and
New York, New York              Distributors; Director or Trustee of the Dean
                                Witter Funds; Director and/or officer of various
                                DWDC subsidiaries.
John L. Schroeder (66)          Retired; Director or Trustee of the Dean Witter
Trustee                         Funds; Trustee of the TCW/DW Funds; Director of
c/o Gordon Altman Butowsky      Citizens Utilities Company; formerly Executive
Weitzen Shalov & Wein           Vice President and Chief Investment Officer of the
Counsel to the Independent      Home Insurance Company (August, 1991-September,
Trustees                        1995); and Chairman and Chief Investment Officer
114 West 47th Street            of Axe-Houghton Management and the Axe-Houghton
New York, New York              Funds (1983-1991).
Barry Fink (42)                 First Vice President (since June, 1993) and
Vice President, Secretary and   Secretary and General Counsel (since February,
General Counsel                 1997) of InterCapital and DWSC; First Vice
Two World Trade Center          President, Assistant Secretary and Assistant
New York, New York              General Counsel of Distributors (since February,
                                1997); Assistant Secretary of DWR (since August,
                                1996); Vice President, Secretary and General
                                Counsel of the Dean Witter Funds and the TCW/DW
                                Funds (since February, 1997); previously Vice
                                President, Assistant Secretary and Assistant
                                General Counsel of InterCapital and DWSC and
                                Assistant Secretary of the Dean Witter Funds and
                                the TCW/DW Funds.
James F. Willison (53)          Senior Vice President of InterCapital; Vice
Vice President                  President of various Dean Witter Funds.
Two World Trade Center
New York, New York
Joseph R. Arcieri (48)          Vice President of InterCapital; Vice President of
Vice President                  various Dean Witter Funds.
Two World Trade Center
New York, New York
</TABLE>
    
 
                                       7
<PAGE>
 
   
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Thomas F. Caloia (51)           First Vice President and Assistant Treasurer of
Treasurer                       InterCapital and DWSC; Treasurer of the Dean
Two World Trade Center          Witter Funds and TCW/DW Funds.
New York, New York
<FN>
- ------------
*Denotes Trustees who are "interested persons" of the Fund, as defined in the
 Act.
</TABLE>
    
 
   
    In addition, Robert M. Scanlan, President and Chief Operating Officer of
InterCapital and DWSC, Executive Vice President of Distributors and DWTC and
Director of DWTC, Joseph J. McAlinden, Executive Vice President and Chief
Investment Officer of InterCapital and Director of DWSC, Robert S. Giambrone,
Senior Vice President of InterCapital, DWSC, Distributors and DWTC and Director
of DWTC and Peter M. Avelar and Jonathan R. Page, Senior Vice Presidents of
InterCapital, are Vice Presidents of the Fund. Marilyn K. Cranney, First Vice
President and Assistant General Counsel of InterCapital and DWSC and Lou Anne D.
McInnis and Ruth Rossi, Vice Presidents and Assistant General Counsels of
InterCapital and DWSC, and Frank Bruttomesso and Carsten Otto, Staff Attorneys
with InterCapital, are Assistant Secretaries of the Fund.
    
 
   
THE BOARD OF TRUSTEES, THE INDEPENDENT TRUSTEES, AND THE COMMITTEES
    
 
   
    The Board of Trustees consists of eight (8) trustees. These same individuals
also serve as directors or trustees for all of the Dean Witter Funds, and are
referred to in this section as Trustees. As of the date of this Statement of
Additional Information, there are a total of 84 Dean Witter Funds, comprised of
126 portfolios. As of February 28, 1997, the Dean Witter Funds had total net
assets of approximately $89.8 billion and more than six million shareholders.
    
 
   
    Six Trustees (75% of the total number) have no affiliation or business
connection with InterCapital or any of its affiliated persons and do not own any
stock or other securities issued by InterCapital's parent company, DWDC. These
are the "disinterested" or "independent" Trustees. The other two Trustees (the
"management Trustees") are affiliated with InterCapital. Four of the six
independent Trustees are also Independent Trustees of the TCW/DW Funds.
    
 
   
    Law and regulation establish both general guidelines and specific duties for
the Independent Trustees. The 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 and
the Committee of the Independent Trustees. Three of them also serve as members
of the Derivatives Committee. During the calendar year ended December 31, 1996,
the three Committees held a combined total of sixteen meetings. The Committees
hold some meetings at InterCapital's offices and some outside InterCapital.
Management Trustees or officers do not attend these meetings unless they are
invited for purposes of furnishing information or making a report.
    
 
   
    The Committee of the Independent Trustees is 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 Dean Witter Funds have such a plan.
    
 
                                       8
<PAGE>
   
    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 such 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.
    
 
   
    Finally, the Board of each Fund has formed a Derivatives Committee to
establish parameters for and oversee the activities of the Fund with respect to
derivative investments, if any, made by the Fund.
    
 
   
DUTIES OF CHAIRMAN OF COMMITTEE OF THE INDEPENDENT TRUSTEES AND AUDIT COMMITTEE
    
 
   
    The Chairman of the Committee of the Independent Trustees and the Audit
Committee maintains an office at the Funds' headquarters in New York. He is
responsible for keeping abreast of regulatory and industry developments and the
Funds' operations and management. He screens and/or prepares written materials
and identifies critical issues for the Independent Trustees to consider,
develops agendas for Committee meetings, determines the type and amount of
information that the Committees will need to form a judgment on various issues,
and arranges to have that information furnished to Committee members. He also
arranges for the services of independent experts and consults with them in
advance of meetings to help refine reports and to focus on critical issues.
Members of the Committees believe that the person who serves as Chairman of both
Committees and guides their efforts is pivotal to the effective functioning of
the Committees.
    
 
   
    The Chairman of the Committees also maintains continuous contact with the
Funds' management, with independent counsel to the Independent Trustees and with
the Funds' independent auditors. He arranges for a series of special meetings
involving the annual review of investment advisory, management and other
operating contracts of the Funds and, on behalf of the Committees, conducts
negotiations with the Investment Manager and other service providers. In effect,
the Chairman of the Committees serves as a combination of chief executive and
support staff of the Independent Trustees.
    
 
   
    The Chairman of the Committee of the Independent Trustees and the Audit
Committee is not employed by any other organization and devotes his time
primarily to the services he performs as Committee Chairman and Independent
Trustee of the Dean Witter Funds and as an Independent Trustee and, since July
1, 1996, as Chairman of the Committee of the Independent Trustees and the Audit
Committee of the TCW/DW Funds. The current Committee Chairman has had more than
35 years experience as a senior executive in the investment company industry.
    
 
   
ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL DEAN
WITTER FUNDS
    
 
   
    The Independent Trustees and the Funds' management believe that having the
same Independent Trustees for each of the 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 cost to each separate
Fund, the services of Independent Trustees, and a Chairman of their Committees,
of the caliber, experience and business acumen of the individuals who serve as
Independent Trustees of the Dean Witter Funds.
    
 
   
COMPENSATION OF INDEPENDENT TRUSTEES
    
 
   
    The Fund pays each Independent Trustee an annual fee of $1,000 plus a per
meeting fee of $50 for meetings of the Board of Trustees or committees of the
Board of Trustees attended by the Trustee (the
    
 
                                       9
<PAGE>
   
Fund pays the Chairman of the Audit Committee an annual fee of $750 and pays the
Chairman of the Committee of the Independent Trustees an additional annual fee
of $1,200). 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 expense
reimbursement from the Fund.
    
 
   
    The following table illustrates the compensation paid to the Fund's
Independent Trustees by the Fund for the fiscal year ended December 31, 1996.
    
 
   
                               FUND COMPENSATION
    
 
   
<TABLE>
<CAPTION>
                                                                   AGGREGATE
                                                                 COMPENSATION
NAME OF INDEPENDENT TRUSTEE                                      FROM THE FUND
- --------------------------------------------------------------  ---------------
<S>                                                             <C>
Michael Bozic.................................................      $1,800
Edwin J. Garn.................................................       1,800
John R. Haire.................................................       3,900
Dr. Manuel H. Johnson.........................................       1,750
Michael E. Nugent.............................................       1,800
John L. Schroeder.............................................       1,750
</TABLE>
    
 
   
    The following table illustrates the compensation paid to the Fund's
Independent Trustees for the calendar year ended December 31, 1996 for services
to the 82 Dean Witter Funds and, in the case of Messrs. Haire, Johnson, Nugent
and Schroeder, the 14 TCW/DW Funds that were in operation at December 31, 1996.
With respect to Messrs. Haire, Johnson, Nugent and Schroeder, the TCW/DW Funds
are included solely because of a limited exchange privilege between those Funds
and five Dean Witter Money Market Funds.
    
 
   
              COMPENSATION FROM DEAN WITTER FUNDS AND TCW/DW FUNDS
    
 
   
<TABLE>
<CAPTION>
                                                                   FOR SERVICE AS    FOR SERVICE        TOTAL
                                                                    CHAIRMAN OF          AS         COMPENSATION
                                                                   COMMITTEES OF     CHAIRMAN OF        PAID
                               FOR SERVICE                          INDEPENDENT     COMMITTEES OF   FOR SERVICES
                              AS DIRECTOR OR                         DIRECTORS/      INDEPENDENT         TO
                               TRUSTEE AND       FOR SERVICE AS     TRUSTEES AND    TRUSTEES AND       82 DEAN
                             COMMITTEE MEMBER     TRUSTEE AND          AUDIT            AUDIT          WITTER
                                OF 82 DEAN      COMMITTEE MEMBER   COMMITTEES OF    COMMITTEES OF     FUNDS AND
NAME OF                           WITTER          OF 14 TCW/DW     82 DEAN WITTER     14 TCW/DW       14 TCW/DW
INDEPENDENT TRUSTEE               FUNDS              FUNDS             FUNDS            FUNDS           FUNDS
- ---------------------------  ----------------   ----------------   --------------   -------------   -------------
Michael Bozic..............      $138,850           --                 --               --            $138,850
<S>                          <C>                <C>                <C>              <C>             <C>
Edwin J. Garn..............       140,900           --                 --               --             140,900
John R. Haire..............       106,400           $64,283           $195,450        $ 12,187         378,320
Dr. Manuel H. Johnson......       137,100            66,483            --               --             203,583
Michael E. Nugent..........       138,850            64,283            --               --             203,133
John L. Schroeder..........       137,150            69,083            --               --             206,233
</TABLE>
    
 
   
    As of the date of this Statement of Additional Information, 57 of the 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 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 25.0% of his or her Eligible
Compensation plus 0.4166666% 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 50.0% after ten years of service. The foregoing
percentages may be changed by the
    
 
                                       10
<PAGE>
   
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.
    
 
   
    The following table illustrates the retirement benefits accrued to the
Fund's Independent Trustees by the Fund for the fiscal year ended December 31,
1996 and by the 57 Dean Witter Funds (including the Fund) for the year ended
December 31, 1996, and the estimated retirement benefits for the Fund's
Independent Trustees, to commence upon their retirement, from the Fund as of
December 31, 1996 and from the 57 Dean Witter Funds as of December 31, 1996.
    
 
   
          RETIREMENT BENEFITS FROM THE FUND AND ALL DEAN WITTER FUNDS
    
 
   
<TABLE>
<CAPTION>
                                        FOR ALL ADOPTING FUNDS
                                      ---------------------------        RETIREMENT BENEFITS    ESTIMATED ANNUAL
                                       ESTIMATED                                                    BENEFITS
                                        CREDITED                         ACCRUED AS EXPENSES          UPON
                                         YEARS        ESTIMATED                                  RETIREMENT(2)
                                       OF SERVICE     PERCENTAGE        ---------------------   ----------------
                                           AT             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           50.0%           $  338       $ 20,147   $  850  $ 51,325
Edwin J. Garn.......................       10           50.0               473         27,772      850    51,325
John R. Haire.......................       10           50.0              (345)(3)     46,952    2,309   129,550
Dr. Manuel H. Johnson...............       10           50.0               202         10,926      850    51,325
Michael E. Nugent...................       10           50.0               338         19,217      850    51,325
John L. Schroeder...................        8           41.7               645         38,700      708    42,771
</TABLE>
    
 
- ------------
   
(1)  An Eligible Trustee may elect alternate payments of his or her retirement
    benefits based upon the combined life expectancy of such Eligible Trustee
    and his or her spouse on the date of such Eligible Trustee's retirement. The
    amount estimated to be payable under this method, through the remainder of
    the later of the lives of such Eligible Trustee and spouse, will be the
    actuarial equivalent of the Regular Benefit. In addition, the Eligible
    Trustee may elect that the surviving spouse's periodic payment of benefits
    will be equal to either 50% or 100% of the previous periodic amount, an
    election that, respectively, increases or decreases the previous periodic
    amount so that the resulting payments will be the actuarial equivalent of
    the Regular Benefit.
    
 
   
(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
    Trustee until June 1, 1998.
    
 
   
    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 percent of the Fund's shares of
beneficial interest outstanding.
    
 
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------
 
PORTFOLIO SECURITIES
 
    TAXABLE SECURITIES.  As discussed in the Prospectus, the Fund may invest up
to 20% of its total assets in taxable money market instruments, non-California
tax-exempt securities, futures and options. Investments in taxable money market
instruments would generally be made under any one of the following
circumstances: (a) pending investment of 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.
 
    In addition, the Fund may temporarily invest more than 20% of its total
assets in non-California tax-exempt securities and taxable money market
instruments, or in tax-exempt securities subject to the federal alternative
minimum tax for individual shareholders, to maintain a "defensive" posture when,
in the opinion of the Investment Manager, it is advisable to do so because of
market conditions. The types of taxable money market instruments in which the
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
 
                                       11
<PAGE>
United States Government, its agencies, instrumentalities or authorities; (ii)
commercial paper rated P-1 by Moody's Investors Service, Inc. ("Moody's") or A-1
by Standard & Poor's Corporation ("S&P"); (iii) certificates of deposit of
domestic banks with assets of $1 billion or more; and (iv) repurchase agreements
with respect to portfolio securities.
 
    TAX-EXEMPT SECURITIES.  As discussed in the Prospectus, at least 80% of the
Fund's total assets will be invested in California tax-exempt securities
(California Municipal Bonds, California Municipal Notes and California Municipal
Commercial Paper). In regard to the Moody's and S&P ratings discussed in the
Prospectus, it should be noted that the ratings represent the organizations'
opinions as to the quality of the securities which they undertake to rate and
that the ratings are general and not absolute standards of quality. For a
description of Municipal Bond, Municipal Note and Municipal Commercial Paper
ratings by Moody's and S&P, see the Appendix to this Statement of Additional
Information.
 
    The Fund does not have any minimum quality rating standard for its
downgraded investments. As such, the Fund may invest in securities rated as low
as Caa, Ca or C by Moody's or CCC, CC, C or CI by S&P. Bonds rated Caa or Ca by
Moody's may already be in default on payment of interest or principal, while
bonds rated C by Moody's, their lowest bond rating, can be regarded as having
extremely poor prospects of ever attaining any real investment standing. Bonds
rated CI by S&P, their lowest bond rating, are no longer making interest
payments.
 
    The payment of principal and interest by issuers of certain Municipal
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 a Municipal Obligation
meets the Fund's investment quality requirements. In addition, some issues may
contain provisions which permit the Fund to demand from the issuer repayment of
principal at some specified period(s) prior to maturity.
 
    MUNICIPAL BONDS.  Municipal Bonds, as referred to in the Prospectus, are
debt obligations of a state, its cities, municipalities and municipal agencies
(all of which are generally referred to as "municipalities") which generally
have a maturity at the time of issue of one year or more, and the interest from
which is, in the opinion of bond counsel, exempt from federal income tax. In
addition to these requirements, the interest from California Municipal Bonds
must be, in the opinion of bond counsel, exempt from California personal income
tax. They are issued to raise funds for various public purposes, such as
construction of a wide range of public facilities, to refund outstanding
obligations and to obtain funds for general operating expenses or to loan to
other public institutions and facilities. In addition, certain types of
industrial development bonds and pollution control bonds are issued by or on
behalf of public authorities to provide funding for various privately operated
facilities.
 
    MUNICIPAL NOTES.  Municipal Notes are short-term obligations of
municipalities, generally with a maturity at the time of issuance ranging from
six months to three years, the interest from which is, in the opinion of bond
counsel, exempt from federal income tax. In addition to those requirements, the
interest from California Municipal Notes must be, in the opinion of bond
counsel, exempt from California personal income tax. The principal types of
Municipal Notes include tax anticipation notes, bond anticipation notes, revenue
anticipation notes and project notes, although there are other types of
Municipal Notes in which the Fund may invest. Notes sold in anticipation of
collection of taxes, a bond sale or receipt of other revenues are usually
general obligations of the issuing municipality or agency. Project Notes are
issued by local agencies and are guaranteed by the United States Department of
Housing and Urban Development. Such notes are secured by the full faith and
credit of the United States Government.
 
    MUNICIPAL COMMERCIAL PAPER.  Municipal Commercial Paper refers to short-term
obligations of municipalities the interest from which is, in the opinion of bond
counsel, exempt from federal income tax. In addition to those requirements, the
interest from California Commercial Paper must be, in the opinion of bond
counsel, exempt from California personal income tax. It may be issued at a
discount and is sometimes referred to as Short-Term Discount Notes. Municipal
Commercial Paper is likely to be used to meet seasonal working capital needs of
a municipality or interim construction financing and to be paid
 
                                       12
<PAGE>
from general revenues of the municipality or refinanced with long-term debt. In
most cases Municipal Commercial Paper is backed by letters of credit, lending
agreements, note repurchase agreements or other credit facility agreements
offered by banks or other institutions.
 
    Issuers of Municipal Obligations are subject to the provisions of
bankruptcy, insolvency and other laws affecting the rights and remedies of
creditors, such as the Federal Bankruptcy Act, and laws, if any, which may be
enacted by Congress or any state extending the time for payment of principal or
interest, or both, or imposing other constraints upon enforcement of such
obligations or upon municipalities to levy taxes. There is also the possibility
that as a result of litigation or other conditions the power or ability of any
one or more issuers to pay, when due, principal of and interest on its, or
their, Municipal Bonds, Municipal Notes and Municipal Commercial Paper may be
materially affected.
 
RISK CONSIDERATIONS
 
    Because of the special nature of securities which are rated below investment
grade by national credit rating agencies ("lower-rated securities"), the
Investment Manager must take into account certain special considerations in
assessing the risks associated with such investments. For example, as the
lower-rated securities market is relatively new, its growth has paralleled a
long economic expansion and it has not weathered a recession in its present size
and form. Therefore, an economic downturn or increase in interest rates is
likely to have a negative effect on this market and on the value of the lower-
rated securities held by the Fund, as well as on the ability of the securities'
issuers to repay principal and interest on their borrowings.
 
   
    The prices of lower-rated securities have been found to be less sensitive to
changes in prevailing interest rates than higher-rated investments, but are
likely to be more sensitive to adverse economic changes or individual
issuer/debtor developments. During an economic downturn or substantial period of
rising interest rates, highly leveraged issuers may experience financial stress
which would adversely affect their ability to service their principal and
interest payment obligations, to meet their projected business goals or to
obtain additional financing. If the issuer of a fixed-income security owned by
the Fund defaults, the Fund may incur additional expenses to seek recovery. In
addition, periods of economic uncertainty and change can be expected to result
in an increased volatility of market prices of lower-rated securities and a
concomitant volatility in the net asset value of a share of the Fund. Moreover,
the market prices of certain of the Fund's portfolio securities which are
structured as zero coupon securities are affected to a greater extent by
interest rate changes and thereby tend to be more volatile than securities which
pay interest periodically and in cash (see "Dividends, Distributions and Taxes"
for a discussion of the tax ramifications of investments in such securities).
    
 
    The secondary market for lower-rated securities may be less liquid than the
markets for higher quality securities and, as such, may have an adverse effect
on the market prices of certain securities. The limited liquidity of the market
may also adversely affect the ability of the Fund's Trustees to arrive at a fair
value for certain lower-rated securities at certain times and should make it
difficult for the Fund to sell certain securities.
 
    New laws and proposed new laws may have a potentially negative impact on the
market for lower-rated securities. For example, recent legislation requires
federally-insured savings and loan associations to divest their investments in
lower-rated securities. This legislation and other proposed legislation may have
an adverse effect upon the value of lower-rated securities and a concomitant
negative impact upon the net asset value of a share of the Fund.
 
   
    VARIABLE RATE OBLIGATIONS.  As stated in the Prospectus, the Fund may invest
in obligations of the type called "variable rate obligations." The interest rate
payable on a variable rate obligation is adjusted either at predesignated
periodic intervals or 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 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
    
 
                                       13
<PAGE>
the obligation. 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 the obligation prior to maturity, is
enhanced.
 
   
    LENDING OF PORTFOLIO SECURITIES.  The Fund may lend portfolio securities to
brokers, dealers and financial institutions provided that cash equal to at least
100% of the market value of the securities loaned is deposited by the borrower
with the Fund and is maintained each business day in a segregated account
pursuant to applicable regulations. While such securities are on loan, the
borrower will pay the Fund any income accruing thereon, and the Fund may invest
the cash collateral in portfolio securities, thereby earning additional income.
The Fund will not lend its portfolio securities if such loans are not permitted
by the laws or regulations of any state in which its shares are qualified for
sale and will not lend more than 25% of the value of its total assets. Loans
would be subject to termination by the Fund in the normal settlement time,
currently five business days after notice, or by the borrower on one day's
notice. Borrowed securities must be returned when the loan is terminated. Any
gain or loss in the market price of the borrowed securities which occurs during
the term of the loan inures to the Fund and its shareholders. The Fund may pay
reasonable finders, borrowers, administrative, and custodial fees in connection
with a loan. During the fiscal year ended December 31, 1996, the Fund did not
loan its portfolio securities and it has no current intention to loan its
portfolio securities in the forseeable future.
    
 
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS
 
   
    As discussed in the Prospectus, from time to time, in the ordinary course of
business, the Fund may purchase securities on a when-issued or delayed delivery
basis and may purchase or sell securities on a forward commitment basis. When
such 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 the commitment. The securities so purchased are subject to market
fluctuation and no interest accrues to the purchaser during this period. While
the Fund will only purchase securities on a when-issued, delayed delivery or
forward commitment basis with the intention of acquiring the securities, the
Fund may sell the securities before the settlement date, if it is deemed
advisable. At the time the Fund makes the commitment to purchase securities on a
when-issued or delayed delivery basis, the Fund will record the transaction and
thereafter reflect the value, each day, of such security in determining the net
asset value of the Fund. At the time of delivery of the securities, the value
may be more or less than the purchase price. The Fund will also establish a
segregated account with the Fund's custodian bank in which it will continuously
maintain cash or U.S. Government securities or other liquid portfolio securities
equal in value to commitments for such when-issued or delayed delivery
securities; subject to this requirement, the Fund may purchase securities on
such basis without limit. An increase in the percentage of the Fund's assets
committed to the purchase of securities on a when-issued or delayed delivery
basis may increase the volatility of the Fund's net asset value. The Investment
Manager and the Trustees do not believe that the Fund's net asset value or
income will be adversely affected by its purchase of securities on such basis.
    
 
HEDGING ACTIVITIES
 
    The Fund may enter financial futures contracts, options on such futures and
municipal bond index futures contracts for hedging purposes.
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES
 
    As discussed in the Prospectus, the Fund may invest in financial futures
contracts ("futures contracts") and related options thereon. These futures
contracts and related options thereon will be used only as a hedge against
anticipated interest rate changes. A futures contract sale creates an obligation
by the Fund, as seller, to deliver the specific type of instrument called for in
the contract at a specified future time for a specified price. A futures
contract purchase would create an obligation by the Fund, as purchaser, to take
delivery of the specific type of financial instrument at a specified future time
at a specified price. The specific securities delivered or taken, respectively,
at settlement date, would not be determined until or near that date. The
determination would be in accordance with the rules of the exchange on which the
futures contract sale or purchase was effected.
 
                                       14
<PAGE>
    Although the terms of futures contracts specify actual delivery or receipt
of securities, in most instances the contracts are closed out before the
settlement date without the making or taking of delivery of the securities.
Closing out of a futures contract is usually effected by entering into an
offsetting transaction. An offsetting transaction for a futures contract sale is
effected by the Fund entering into a futures contract purchase for the same
aggregate amount of the specific type of financial instrument at the same
delivery date. If the price in the sale exceeds the price in the offsetting
purchase, the Fund is immediately paid the difference and thus realizes a gain.
If the offsetting purchase price exceeds the sale price, the Fund pays the
difference and realizes the loss. Similarly, the closing out of a futures
contractpurchase is effected by the Fund entering into a futures contract sale.
If the offsetting sale price exceeds the purchase price the Fund realizes a
gain, and if the offsetting sale price is less than the purchase price the Fund
realizes a loss.
 
    Unlike a futures contract, which requires the parties to buy and sell a
security on a set date, an option on a futures contract entitles its holder to
decide on or before a future date whether to enter into such a contract. If the
holder decides not to enter into the contract, the premium paid for the option
is lost. Since the value of the option is fixed at the point of sale, there are
no daily payments of cash to reflect the change in the value of the underlying
contract, as discussed below for futures contracts. The value of the option
changes and is reflected in the net asset value of the Fund.
 
    The Fund is required to maintain margin deposits with brokerage firms
through which it effects futures contracts and options thereon. The initial
margin requirements vary according to the type of the underlying security. In
addition, due to current industry practice daily variations in gains and losses
on open contracts are required to be reflected in cash in the form of variation
margin payments. The Fund may be required to make additional margin payments
during the term of the contract.
 
    Currently, futures contracts can be purchased on debt securities such as
U.S. Treasury Bills and Bonds, U.S. Treasury Notes with maturities between 6 1/2
and 10 years, Certificates of the Government National Mortgage Association and
Bank Certificates of Deposit. The Fund may invest in interest rate futures
contracts covering these types of financial instruments as well as in new types
of contracts that become available in the future.
 
                                       15
<PAGE>
    Financial futures contracts are traded in an auction environment on the
floors of several Exchanges -- principally, the Chicago Board of Trade, the
Chicago Mercantile Exchange and the New York Futures Exchange. Each Exchange
guarantees performance under contract provisions through a clearing corporation,
a nonprofit organization managed by the Exchange membership which is also
responsible for handling daily accounting of deposits or withdrawals of margin.
 
    A risk in employing futures contracts to protect against the price
volatility of portfolio securities is that the prices of securities subject to
futures contracts may correlate imperfectly with the behavior of the cash prices
of the Fund's portfolio securities. The correlation may be distorted by the fact
that the futures market is dominated by short-term traders seeking to profit
from the difference between a contract or security price objective and their
cost of borrowed funds. This would reduce their value for hedging purposes over
a short time period. The correlation may be further distorted since the futures
contracts that are being used to hedge are not based on municipal obligations.
 
    Another risk is that the Fund's manager could be incorrect in its
expectations as to the direction or extent of various interest rate movements or
the time span within which the movements take place. For example, if the Fund
sold futures contracts for the sale of securities in anticipation of an increase
in interest rates, and then interest rates went down instead, causing bond
prices to rise, the Fund would lose money on the sale.
 
    Put and call options on financial futures have similar characteristics as
Exchange-traded options. See below for a further description of options.
 
    In addition to the risks associated in investing in options on securities,
there are particular risks associated with investing in options on futures. In
particular, the ability to establish and close out positions on such options
will be subject to the development and maintenance of a liquid secondary market.
It is not certain that this market will develop.
 
    In order to assure that the Fund is entering into transactions in futures
contracts for hedging purposes as such is defined by the Commodity Futures
Trading Commission either: 1) a substantial majority (i.e., approximately 75%)
of all anticipatory hedge transactions (transactions in which the Fund does not
own at the time of the transaction, but expects to acquire, the securities
underlying the relevant futures contract) involving the purchase of futures
contracts will be completed by the purchase of securities which are the subject
of the hedge or 2) the underlying value of all long positions in futures
contracts will not exceed the total value of a) all short-term debt obligations
held by the Fund; b) cash held by the Fund; c) cash proceeds due to the Fund on
investments within thirty days; d) the margin deposited on the contracts; and e)
any unrealized appreciation in the value of the contracts.
 
    The Fund may not enter into futures contracts or related options thereon if
immediately thereafter the amount committed to margin plus the amount paid for
option premiums exceeds 5% of the value of the Fund's total assets. In instances
involving the purchase of futures contracts by the Fund, the market value of the
futures contract will be deposited in a segregated account of cash and cash
equivalents to collateralize the position and thereby ensure that the use of
such futures is unleveraged. The Fund may not purchase or sell futures contracts
or related options if immediately thereafter more than one-third of its net
assets would be hedged.
 
    MUNICIPAL BOND INDEX FUTURES.  The Fund may utilize municipal bond index
futures contracts and options thereon for hedging purposes. The Fund's
strategies in employing such contracts will be similar to that discussed above
with respect to financial futures and options thereon. A municipal bond index is
a method of reflecting in a single number the market value of many different
municipal bonds and is designed to be representative of the municipal bond
market generally. The index fluctuates in response to changes in the market
values of the bonds included within the index. Unlike futures contracts on
particular financial instruments, transactions in futures on a municipal bond
index will be settled in cash if held until the close of trading in the
contract. However, like any other futures contract, a position in the contract
may be closed out by purchase or sale of an offsetting contract for the same
delivery month prior to expiration of the contract.
 
                                       16
<PAGE>
    OPTIONS.  The Fund may purchase or sell (write) options on debt securities
as a means of achieving additional return or hedging the value of the Fund's
portfolio. The Fund would only buy options listed on national securities
exchanges. The Fund will not purchase options if, as a result, the aggregate
cost of all outstanding options exceeds 10% of the Fund's total assets.
 
    Presently there are no options on California tax-exempt securities traded on
national securities exchanges and until such time as they become available, the
Fund will not invest in options on debt securities. It is anticipated that such
instruments will not become available during the next year.
 
    A call option is a contract that gives the holder of the option the right to
buy from the writer of the call option, in return for a premium, the security
underlying the option at a specified exercise price at any time during the term
of the option. The writer of the call option has the obligation upon exercise of
the option to deliver the underlying security upon payment of the exercise price
during the option period. A put option is a contract that gives the holder of
the option the right to sell to the writer, in return for a premium, the
underlying security at a specified price during the term of the option. The
writer of the put has the obligation to buy the underlying security upon
exercise, at the exercise price during the option period.
 
   
    The Fund will only write covered call or covered put options. The Fund may
not write covered options in an amount exceeding 20% of the value of its total
assets. A call option is "covered" if the Fund owns the underlying security
subject to the option or has an absolute and immediate right to acquire that
security or futures contract without additional cash consideration (or for
additional cash consideration held in a segregated account by its custodian)
upon conversion or exchange of other securities held in its portfolio. A call
option is also covered if the Fund holds a call on the same security or futures
contract as the call written where the exercise price of the call held is (i)
equal to or less than the exercise price of the call written or (ii) greater
than the exercise price of the call written if the difference is maintained by
the Fund in cash, Treasury bills or other liquid portfolio securities in a
segregated account with its custodian. A put option is "covered" if the Fund
maintains cash, Treasury bills or other liquid portfolio securities with a value
equal to the exercise price in a segregated account with its custodian, or else
holds a put on the same security or futures contract as the put written where
the exercise price of the put held is equal to or greater than the exercise
price of the put written.
    
 
    If the Fund has written an option, it may terminate its obligation by
effecting a closing purchase transaction. This is accomplished by purchasing an
option of the same series as the option previously written. However, once the
Fund has been assigned an exercise notice, the Fund will be unable to effect a
closing purchase transaction. Similarly, if the Fund is the holder of an option
it may liquidate its position by effecting a closing sale transaction. This is
accomplished by selling an option of the same series as the option previously
purchased. There can be no assurance that either a closing purchase or sale
transaction can be effected when the Fund so desires.
 
    The Fund will realize a profit from a closing transaction if the price of
the transaction is less than the premium received from writing the option or is
more than the premium paid to purchase the option; the Fund will realize a loss
from a closing transaction if the price of the transaction is more than the
premium received from writing the option or is less than the premium paid to
purchase the option. Since call option prices generally reflect increases in the
price of the underlying security, any loss resulting from the repurchase of a
call option may also be wholly or partially offset by unrealized appreciation of
the underlying security. Other principal factors affecting the market value of a
put or a call option include supply and demand, interest rates, the current
market price and price volatility of the underlying security and the time
remaining until the expiration date.
 
    An option position may be closed out only on an exchange which provides a
secondary market for an option of the same series. Although the Fund will
generally purchase or write only those options for which there appears to be an
active secondary market, there is no assurance that a liquid secondary market on
an exchange will exist for any particular option. In such event it might not be
possible to effect closing transactions in particular options, so that the Fund
would have to exercise its options in order to realize any profit and would
incur brokerage commissions upon the exercise of call options and upon the
subsequent disposition of underlying securities for the exercise of put options.
If the Fund as a
 
                                       17
<PAGE>
covered call option writer is unable to effect a closing purchase transaction in
a secondary market, it will not be able to sell the underlying security until
the option expires or it delivers the underlying security upon exercise.
 
PORTFOLIO MANAGEMENT
 
   
    The Fund's portfolio turnover rate during the fiscal year ended December 31,
1996 was 11%. It is anticipated that the Fund's portfolio turnover rate will not
exceed 50% during the fiscal year ending December 31, 1997. A 50% turnover rate
would occur, for example, if 50% of the securities held in the Fund's portfolio
(excluding all securities whose maturities at acquisition were one year or less)
were sold and replaced within one year. However, the Fund may engage in
short-term trading consistent with its investment objective. Securities may be
sold in anticipation of a market decline (a rise in interest rates) or purchased
in anticipation of a market rise (a decline in interest rates). In addition, a
security may be sold and another security of comparable quality purchased at
approximately the same time to take advantage of what the Investment Manager
believes to be a temporary disparity in the normal yield relationship between
the two securities. These yield disparities may occur for reasons not directly
related to the investment quality of particular issues or the general movement
of interest rates, such as changes in the overall demand for, or supply of,
various types of tax-exempt securities.
    
 
    In general, purchases and sales may also be made to restructure the
portfolio in terms of average maturity, quality, coupon yield, or
diversification for any one or more of the following purposes: (a) to increase
income, (b) to improve portfolio quality, (c) to minimize capital depreciation,
(d) to realize gains or losses, or for such other reasons as the Investment
Manager deems relevant in light of economic and market conditions.
 
    The Fund does not generally intend to invest more than 25% of its total
assets in securities of any one governmental unit. Subject to investment
restriction number 3 in the Prospectus, 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).
 
    The Fund may invest in obligations customarily sold to institutional
investors in private transactions with the issuers thereof and up to 5% of its
total assets in securities for which a BONA FIDE market does not exist at the
time of purchase. With respect to any securities as to which a BONA FIDE market
does not exist, the Fund may be unable to dispose of such securities promptly at
reasonable prices. It is the Fund's current intention not to invest in such
obligations.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    In addition to the investment restrictions enumerated in the Prospectus, the
investment restrictions listed below have been adopted by the Fund as
fundamental policies, which may not be changed without the vote of a majority of
the outstanding voting securities of the Fund, as defined in the Act. Such a
majority is defined as the lesser of (a) 67% of the shares present at a meeting
of shareholders, if the holders of more than 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 and
those recited in the Prospectus: (a) an "issuer" of a security is the entity
whose assets and revenues are committed to the payment of interest and principal
on that particular security, provided that the securities guaranteed by separate
entities will be considered a separate security; (b) a "taxable security" is any
security the interest on which is subject to federal income tax; and (c) all
percentage limitations apply immediately after a purchase or initial investment,
and any subsequent change in any applicable percentage resulting from market
fluctuations or other changes in total or net assets does not require
elimination of any security from the portfolio.
 
    The Fund may not:
 
         1. Invest in common stock.
 
                                       18
<PAGE>
         2. Invest in securities of any issuer if, to the knowledge of the Fund,
    any officer or trustee of the Fund or any officer or director of the
    Investment Manager owns more than 1/2 of 1% of the outstanding securities of
    such issuer, and such officers, trustees and directors who own more than 1/2
    of 1% own in the aggregate more than 5% of the outstanding securities of
    such issuer.
 
         3. Purchase or sell real estate or interests therein, although it may
    purchase securities secured by real estate or interests therein.
 
         4. Purchase or sell commodities except that the Fund may purchase
    financial futures contracts and related options in accordance with
    procedures adopted by the Trustees described in its Prospectus and Statement
    of Additional Information.
 
         5. Purchase oil, gas or other mineral leases, rights or royalty
    contracts, or exploration or development programs.
 
         6. Write, purchase or sell puts, calls, or combinations thereof except
    options on futures contracts or options on debt securities.
 
         7. Purchase securities of other investment companies, except in
    connection with a merger, consolidation, reorganization or acquisition of
    assets.
 
         8. Borrow money, except that the 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).
 
         9. Pledge its assets or assign or otherwise encumber them except to
    secure permitted borrowings. (For the purpose of this restriction,
    collateral arrangements with respect to the writing of options and
    collateral arrangements with respect to initial margin for futures are not
    deemed to be pledges of assets and neither such arrangements nor the
    purchase or sale of futures are deemed to be the issuance of a senior
    security as set forth in restriction 10.)
 
        10. Issue senior securities as defined in the Act except insofar as the
    Fund may be deemed to have issued a senior security by reason of: (a)
    entering into any repurchase agreement; (b) purchasing any securities on a
    when-issued or delayed delivery basis; or (c) borrowing money in accordance
    with restrictions described above.
 
        11. 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; (b) by investment in repurchase agreements; and (c)
    by lending its portfolio securities.
 
        12. Make short sales of securities.
 
        13. Purchase securities on margin, except for such short-term loans as
    are necessary for the clearance of purchases of portfolio securities. The
    deposit or payment by the Fund of initial or variation margin in connection
    with futures contracts or related options thereon is not considered the
    purchase of a security on margin.
 
        14. Engage in the underwriting of securities, except insofar as the Fund
    may be deemed an underwriter under the Securities Act of 1933 in disposing
    of a portfolio security.
 
        15. Invest for the purpose of exercising control or management of any
    other issuer.
 
PORTFOLIO TRANSACTIONS AND BROKERAGE
- --------------------------------------------------------------------------------
 
    The Investment Manager is responsible for decisions to buy and sell
securities and commodities 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. Securities are
generally traded in the over-the-counter market on a "net" basis with dealers
acting as principal for their own accounts without charging
 
                                       19
<PAGE>
   
a stated commission, although the price of the security usually includes a
profit to the dealer. Options and futures transactions will usually be effected
through a broker and a commission will be charged. 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,
1994, 1995 and 1996, the Fund did not pay any brokerage commissions.
    
 
   
    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 adviser 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 are 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 may utilize a pro-rata
allocation process based on the size of the Dean Witter Funds involved and the
number of shares available from the public offering.
    
 
    The policy of the Fund, regarding purchases and sales of securities for its
portfolio, is that primary consideration be given to obtaining the most
favorable prices and efficient execution 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 such price 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. Such 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 every case, benefit the
Fund directly. While the receipt of such information and services is useful in
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 will not reduce the management fee it
pays to the Investment Manager by any amount that may be attributable to the
value of such services.
 
    Pursuant to an order of the Securities and Exchange Commission, the Fund may
effect principal transactions in certain money market instruments with DWR. The
Fund will limit its transactions with DWR to U.S. Government and Government
Agency Securities, Bank Money Instruments (i.e. Certificates of Deposit and
Bankers' Acceptances) and Commercial Paper. Such transactions will be effected
with DWR only when the price available from DWR is better than that available
from other dealers.
 
    Consistent with the policy described above, brokerage transactions in
securities and commodities listed on exchanges or admitted to unlisted trading
privileges may be effected through DWR. In order for DWR to effect portfolio
transactions for the Fund, the commissions, fees or other remuneration received
by DWR 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 DWR to receive no more than
the remuneration which would be expected to be received by an unaffiliated
broker in a commensurate arms-length transaction. Furthermore, the Trustees of
the Fund, including a majority of
 
                                       20
<PAGE>
the Trustees who are not "interested" Trustees, have adopted procedures which
are reasonably designed to provide that any commissions, fees or other
remuneration paid to DWR are consistent with the foregoing standard.
 
RISK CONSIDERATIONS RELATING TO CALIFORNIA TAX-EXEMPT SECURITIES
 
    The Trust will be affected by any political, economic or regulatory
developments affecting the ability of California issuers to pay interest or
repay principal on their obligations. Various developments regarding the
California Constitution and State statutes which limit the taxing and spending
authority of California governmental entities may impair the ability of
California issuers to maintain debt service on their obligations. The following
information constitutes only a brief summary and is not intended as a complete
description.
 
    In 1978, Proposition 13, an amendment to the California Constitution, was
approved, limiting real property valuation for property tax purposes and the
power of local governments to increase real property tax revenues and revenues
from other sources. Legislation adopted after Proposition 13 provided for
assistance to local governments, including the redistribution of the
then-existing surplus in the General Fund, reallocation of revenues to local
governments, and assumption by the State of certain local government
obligations. However, more recent legislation reduced such state assistance.
There can be no assurance that any particular level of State aid to local
governments will be maintained in future years. In NORDLINGER V. HAHN, the
United States Supreme Court upheld certain provisions of Proposition 13 against
claims that it violated the equal protection clause of the Constitution.
 
    In 1979, an amendment was passed adding Article XIIIB to the State
Constitution. As amended in 1990, Article XIIIB imposes an "appropriations
limit" on the spending authority of the State and local government entities. In
general, the appropriations limit is based on certain 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
 
                                       21
<PAGE>
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 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 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.
 
   
    The State is a party to numerous legal proceedings, many of which normally
occur in governmental operations and if decided against the State, might require
the State to make significant future expenditures or impair future revenue
sources.
    
 
   
    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%.
    
 
   
    Los Angeles County, the nation's largest county, is also experiencing
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, among other
things, severe operating deficits for the county's health care system. Also, the
    
 
                                       22
<PAGE>
   
county has not yet recovered from the ongoing loss of revenue caused by state
property tax shift initiatives in 1993 through 1995. Entering the 1996-1997
fiscal year, the county faced a budgetary shortfall of approximately $516
million. The county's budgetary difficulties have continued with their effect on
the 1997-1998 budget still uncertain.
    
 
    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.
 
THE DISTRIBUTOR
- --------------------------------------------------------------------------------
 
   
    As discussed in the Prospectus, shares of the Fund are distributed by Dean
Witter Distributors Inc. (the "Distributor"), on a continuous basis. The
Distributor has entered into a selected dealer agreement with DWR, which through
its own sales organization sells shares of the Fund and may enter into selected
dealer agreements with other selected dealers ("selected broker-dealers"). The
Distributor, a Delaware corporation, is a wholly-owned subsidiary of DWDC. The
Trustees, including a majority of the Trustees who are not and were not at the
time they voted, "interested persons" of the Fund, as defined in the Act (the
"Independent Trustees"), at a meeting held on October 30, 1992 approved the
current Distribution Agreement appointing the Distributor exclusive distributor
of the Fund's shares and providing for the Distributor to bear distribution
expenses not borne by the Fund. The current Distribution Agreement is
substantially identical to the Fund's previous distribution agreement in all
material respects, except for the dates of effectiveness. The current
Distribution Agreement took effect on June 30, 1993 upon the spin-off by Sears,
Roebuck and Co. of its remaining shares of DWDC. By its terms, the Distribution
Agreement had an initial term ending April 30, 1994, and provides that it will
remain in effect from year to year thereafter if approved by the Board. At their
meeting held on April 17, 1996, the Trustees, including all of the Independent
Trustees, approved the continuation of the Distribution Agreement until April
30, 1997.
    
 
    The Distributor bears all expenses incurred in providing services under the
Distribution Agreement. Such expenses include the payment of commissions for
sales of the Fund's shares and incentive compensation to account executives. 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 to other than current shareholders. 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. The
Fund and the Distributor have agreed to indemnify each other against certain
liabilities, including liabilities under the Securities Act of 1933, as amended.
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.
 
PLAN OF DISTRIBUTION
 
    To compensate the Distributor for the services provided and for the expenses
borne by the Distributor or any selected dealer under the Distribution
Agreement, the Fund has adopted a Plan of Distribution pursuant to Rule 12b-1
under the Act (the "Plan") pursuant to which the Fund pays the Distributor
compensation accrued daily and paid monthly at the annual rate of 0.75% of the
lesser of: (a) the average daily aggregate gross sales of the Fund's shares
since the inception of the Fund (not including reinvestments of dividends or
capital gains distributions), less the average daily aggregate net asset value
of the Fund's shares redeemed since the Fund's inception upon which a contingent
deferred sales
 
                                       23
<PAGE>
   
charge has been imposed or upon which such charge has been waived, or (b) the
average daily net assets of the Fund. An amount equal to 0.20% of the Fund's
average annual net assets of the fees payable by the Fund each year pursuant to
the Plan of Distribution is characterized as a "service fee" under the Rules of
Fair Practice of the National Association of Securities Dealers (of which the
Distributor is a member). Such fee is a payment made for personal service and/or
the maintenance of shareholder accounts. The remaining portion of the Plan of
Distribution fee payments made by the Fund is characterized as an "asset-based
sales charge" as such is defined by the aforementioned Rules of Fair Practice.
The Distributor also receives the proceeds of contingent deferred sales charges
imposed on certain redemptions of shares, which are separate and apart from
payments made pursuant to the Plan The Distributor has informed the Fund that it
received contingent deferred sales charges on redemptions of the Fund's shares
in the approximate amounts of $1,752,000, $1,540,000 and $1,325,000 for the
fiscal years ended December 31, 1994, 1995 and 1996, respectively (see
"Redemptions and Repurchases -- Contingent Deferred Sales Charge" in the
Prospectus).
    
 
    The Plan was adopted by a majority vote of the Board of Trustees, including
all of the Trustees of the Fund who are not "interested persons" of the Fund (as
defined in the Act) and who have no direct or indirect financial interest in the
operation of the Plan ( the "Independent 12b-1 Trustees") , cast in person at a
meeting called for the purpose of voting on the Plan, on June 13, 1984, by then
the sole shareholder of the Fund on June 26, 1984, and by the shareholders
holding a majority, as defined in the Act, of the outstanding voting securities
of the Fund at a Meeting of Shareholders of the Fund held on October 21, 1985.
Under its terms, the Plan had an initial term ending December 31, 1984, and
provides that it will remain in effect from year to year thereafter, provided
such continuance is approved annually by a vote of the Trustees in the manner
described above.
 
   
    Most recent continuation of the Plan for one year, until April 30, 1997, was
approved by the Board of Trustees of the Fund, including a majority of the
independent 12b-1 Trustees, at a Board meeting held on April 17, 1996. Prior to
approving the continuation of the Plan, the Board requested and received from
DWR and reviewed all the information which it 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 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; and (3) what services had been provided and were continuing to be provided
under the Plan by the Distributor to the Fund and its shareholders. Based upon
their review, the Trustees of the Fund, including each of the Independent 12b-1
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. This determination was based upon the conclusion of
the Trustees that the Plan provides an effective means of stimulating sales of
shares of the Fund and of reducing or avoiding net redemptions and the
potentially adverse effects that may occur therefrom. In the Trustees' quarterly
review of the Plan, they will consider its continued appropriateness and the
level of compensation provided therein.
    
 
    At their meeting held on October 30, 1992, the Trustees of the Fund,
including all of the Independent 12b-1 Trustees, approved certain amendments to
the Plan which took effect in January, 1993 and were designed to reflect the
fact that upon the reorganization described above the share distribution
activities theretofore performed for the Fund by DWR were assumed by the
Distributor and DWR's sales activities are now being performed pursuant to the
terms of a selected dealer agreement between the Distributor and DWR. The
amendments provide that payments under the Plan will be made to the Distributor
rather than to DWR as before the amendment, and that the Distributor in turn is
authorized to make payments to DWR, its affiliates or other selected
broker-dealers (or direct that the Fund pay such entities directly). The
Distributor is also authorized to retain part of such fee as compensation for
its own distribution-related expenses. At their meeting held on April 28, 1993,
the Trustees, including a majority of the Independent 12b-1 Trustees, also
approved certain technical amendments to the Plan in connection with amendments
adopted by the National Association of Securities Dealers, Inc. to its Rule of
Fair Practice. At their meeting held October 26, 1995, the Trustees of the Fund,
including all of the Independent 12b-1 Trustees, approved an amendment to the
Plan to permit payments to be made under the Plan
 
                                       24
<PAGE>
with respect to certain distribution expenses incurred in connection with the
distribution of shares, including personal services to shareholders with respect
to holdings of such shares, of an investment company whose assets are acquired
by the Fund in a tax-free reorganization.
 
   
    Under the Plan and as required by Rule 12b-1, the Trustees receive and
review promptly after the end of each calendar quarter a written report provided
by the Distributor of the amounts expended under the Plan and the purpose for
which such expenditures were made. The Fund accrued amounts payable under the
Plan, during the fiscal year ended December 31, 1996, of $7,504,744. This amount
is equal to payments required to be paid monthly by the Fund which were computed
at the annual rate of 0.75% of the average daily net assets of the Fund's shares
for the fiscal year and was calculated pursuant to clause (b) of the
compensation formula under the Plan. This amount is treated by the Fund as an
expense in the year it is accrued.
    
 
   
    The Plan was adopted in order to permit the implementation of the Fund's
method of distribution. Under this distribution method shares of the Fund are
sold without a sales load being deducted at the time of purchase, so that the
full amount of an investor's purchase payment will be invested in shares without
any deduction for sales charges. Shares of the Fund may be subject to a
contingent deferred sales charge, payable to the Distributor, if redeemed during
the six years after their purchase. DWR compensates its account executives by
paying them, from its own funds, commissions for the sale of the Fund's shares,
currently a gross sales credit of up to 4% of the amount sold and an annual
gross residual of up to 0.20 of 1% of the current value of the respective
accounts for which they are the account executives of record and for which they
provide personal service and/or the maintenance of such accounts. The gross
sales credit is a charge which reflects commissions paid by DWR to its account
executives for Fund associated distribution-related expenses, including sales
compensation, and overhead and other branch office distribution-related expenses
including (a) the expenses of operating branch offices in connection with the
sale of Fund shares, including lease costs, the salaries and employee benefits
of operations and sales support personnel, utility costs, communications costs
and the costs of stationery and supplies, (b) the costs of client sales
seminars, (c) travel expenses of mutual fund sales coordinators to promote the
sale of Fund shares and (d) other expenses relating to branch promotion of Fund
sales. The distribution fee that the Distributor receives from the Fund under
the Plan, in effect, offsets distribution expenses incurred on behalf of the
Fund and its opportunity costs, such as the gross sales credit and an assumed
interest charge thereon ( "carrying charge" ). In the Distributor's reporting of
its distribution expenses to the Fund, such assumed interest (computed at the
"broker's call rate") has been calculated on the gross sales credit as it is
reduced by amounts received by the Distributor under the Plan and any contingent
deferred sales charges received by the Distributor upon redemption of shares of
the Fund. No other interest charge is included as a distribution expense in the
Distributor's calculation of its distribution costs for this purpose. The
broker's call rate is the interest rate charged to securities brokers on loans
secured by exchange-listed securities.
    
 
   
    The Fund paid 100% of the $7,504,744 accrued under the Plan for the fiscal
year ended December 31, 1996 to the Distributor of the Fund's shares. The
Distributor and DWR estimate that they have spent $77,479,304, pursuant to the
Plan, on behalf of the Fund since the inception of the Fund. It is estimated
that this amount was spent in approximately the following ways: (i) 3.91%
($3,028,056) -- advertising and promotional expenses; (ii) 0.33% ($257,196) --
printing of prospectuses for distribution to other than current shareholders;
and (iii) 95.76% ($74,194,052) -- other expenses, including the gross sales
credit and the carrying charge, of which 8.25% ($6,118,724) represents carrying
charges, 36.99% ($27,447,972) represents commission credits to DWR branch
offices for payments of commissions to account executives and 54.76%
($40,627,356) represents overhead and other branch office distribution-related
expenses.
    
 
    At any given time, expenses may be incurred in distributing shares of the
Fund which may be more or less than the total of (i) the payments made by the
Fund pursuant to the Plan and (ii) the proceeds of contingent deferred sales
charges paid by investors upon redemption of shares. The Distributor has advised
the Fund that such excess amount, including the carrying charge designed to
approximate the opportunity costs incurred by the Distributor which arise from
it having advanced monies without having
 
                                       25
<PAGE>
   
received the amount of any sales charges imposed at the time of sale of the
Fund's shares, totalled $3,649,503 or 0.37% as of December 31, 1996. Because
there is no requirement under the Plan that the Distributor be reimbursed for
all its expenses or any requirement that the Plan be continued from year to
year, this excess amount does not constitute a liability of the Fund. Although
there is no legal obligation for the Fund to pay expenses incurred by the
Distributor in excess of payments made to it under the Plan and the proceeds of
contingent deferred sales charges paid by investors upon redemption of shares,
if for any reason the Plan is terminated, the Trustees will consider at that
time the manner in which to treat such expenses. Any cumulative expenses
incurred by the Distributor, but not yet recovered through distribution fees or
contingent deferred sales charges, may or may not be recovered through future
distribution fees or contingent deferred sales charges.
    
 
    No interested person of the Fund nor any Trustee of the Fund who is not an
interested person of the Fund, as defined in the Act, has any direct financial
interest in the operation of the Plan except to the extent that the Distributor
or certain of its employees may be deemed to have such an interest as a result
of benefits derived from the successful operation of the Plan or as a result of
receiving a portion of the amounts expended thereunder by the Fund.
 
    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 12b-1
Trustees or by a vote of a majority of the outstanding voting securities of the
Fund (as defined in the 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 12b-1 Trustees shall be committed to the discretion of
the Independent 12b-1 Trustees.
 
DETERMINATION OF NET ASSET VALUE
 
    As discussed in the Prospectus, portfolio securities (other than short-term
debt securities and futures and options) are valued for the Fund by an outside
independent pricing service approved by the Board of Trustees. The pricing
service has informed the Fund that in valuing the Fund's portfolio securities it
uses both a computerized grid matrix of tax-exempt securities and evaluations by
its staff, in each case based on information concerning market transactions and
quotations from dealers which reflect the bid side of the market each day. The
Fund's portfolio securities are thus valued by reference to a combination of
transactions and quotations for the same or other securities believed to be
comparable in quality, coupon, maturity, type of issue, call provisions, trading
characteristics and other features deemed to be relevant. The Board of Trustees
believes that timely and reliable market quotations are generally not readily
available to the Fund for purposes of valuing tax-exempt securities and that the
valuations supplied by the pricing service, using the procedures outlined above
and subject to periodic review, are more likely to approximate the fair value of
such securities.
 
    The Investment Manager will periodically review and evaluate the procedures,
methods and quality of services provided by the pricing service then being used
by the Fund and may, from time to time, recommend to the Board of Trustees the
use of other pricing services or discontinuance of the use of any pricing
service in whole or part. The Board may determine to approve such recommendation
or to make other provisions for pricing of the Fund's portfolio securities.
Short-term taxable debt securities with sixty days or less remaining to maturity
at time of purchase are valued at amortized cost, unless the Board determines
such does not reflect the securities' fair value, in which case these securities
will be valued at their fair value as determined by the Board of Trustees. Other
short-term taxable debt securities will be valued on a mark to market basis
until such time as they have a remaining maturity of sixty days, whereupon they
will be valued at amortized cost using their value on the 61st day unless the
Trustees determine such does not reflect the securities' fair value, in which
case these securities will be valued at their fair market value as determined by
the Trustees. Listed options on debt securities are valued at the latest sale
price on the exchange on which they are listed unless no sales of such options
have taken place that day, in which case they will be valued at the mean between
their closing bid and asked prices. Unlisted options on debt securities are
valued at the mean between the latest bid and asked price.
 
                                       26
<PAGE>
Futures contracts and options thereon which are traded on commodities exchanges
are valued at their last sale price on such commodities exchanges unless the
Trustees determine that such price does not reflect their market value, in which
case they will be valued at their fair value as determined by the Trustees. All
other securities, including illiquid securities, and other assets are valued at
their fair value as determined in good faith under procedures established by and
under the supervision of the Board of Trustees.
 
    As stated in the Prospectus, the Fund's net asset value will be computed
once daily at 4:00 P.M. The New York Stock Exchange currently observes the
following holidays: New Year's Day; Presidents' Day; Good Friday; Memorial Day;
Independence Day; Labor Day; Thanksgiving Day; and Christmas Day.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    Upon the purchase of shares of the Fund, a Shareholder Investment Account is
opened for the investor on the books of the Fund and maintained by the Fund's
Transfer Agent, Dean Witter Trust Company (the "Transfer Agent"). This is an
open account in which shares owned by the investor are credited by the Transfer
Agent in lieu of issuance of a share certificate. If a share certificate is
desired, it must be requested in writing for each transaction. Certificates are
issued only for full shares and may be redeposited in the account at any time.
There is no charge to the investor for issuance of a certificate. Whenever a
shareholder instituted transaction takes place in the Shareholder Investment
Account, the shareholder will be mailed a statement reflecting the status of
such Account.
 
    AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  As stated in the
Prospectus, all income dividends and capital gains distributions are
automatically paid in full and fractional shares of the Fund, unless the
shareholder requests that they be paid in cash. Each purchase of shares of the
Fund is made upon the condition that the Transfer Agent is thereby automatically
appointed as agent of the investor to receive all dividends and capital gains
distributions on shares owned by the investor. Such dividends and distributions
will be paid, at the net asset value per share, in shares of the Fund (or in
cash if the shareholder so requests) as of the close of business on the monthly
payment date, as stated in the Prospectus. At any time an investor may request
the Transfer Agent, in writing, to have subsequent dividends and/or capital
gains distributions paid to him or her in cash rather than shares. To assure
sufficient time to process the change, such request should be received by the
Transfer Agent at least five business days prior to the payment date of the
dividend or the record date of the distribution. In the case of recently
purchased shares for which registration instructions have not been received on
the payment or record date, cash payments will be made to DWR or other selected
broker-dealer, and will be forwarded to the shareholder, upon the receipt of
proper instructions.
 
   
    TARGETED DIVIDENDS-SM-  In states where it is legally permissible,
shareholders may also have all income dividends and capital gains distributions
automatically invested in shares of an open-end Dean Witter Fund other than Dean
Witter California Tax-Free Income Fund. Such investment will be made as
described above for automatic investment in shares of the Fund, at the net asset
value per share of the selected Dean Witter Fund as of the close of business on
the payment date of the dividend or distribution and will begin to earn
dividends, if any, in the selected Dean Witter Fund the next business day. To
participate in the Targeted Dividends program, shareholders should contact their
DWR or other selected broker-dealer account executive or the Transfer Agent.
Shareholders of the Fund must be shareholders of the Dean Witter Fund targeted
to receive investments from dividends at the time they enter the Targeted
Dividends program. Investors should review the prospectus of the targeted Dean
Witter Fund before entering the program.
    
 
   
    EASYINVEST-SM-  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account, on a semi-monthly,
monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund. Shares purchased through EasyInvest will be added to the shareholder's
existing account at
    
 
                                       27
<PAGE>
the net asset value calculated the same business day the transfer of funds is
effected. For further information or to subscribe to EasyInvest, shareholders
should contact their DWR or other selected broker-dealer account executive or
the Transfer Agent.
 
    INVESTMENT OF DIVIDENDS OR DISTRIBUTIONS RECEIVED IN CASH.  Any shareholder
who receives a cash payment representing a dividend or capital gains
distribution may invest such dividend or distribution at net asset value,
without the imposition of a contingent deferred sales charge upon redemption, by
returning the check or the proceeds to the Transfer Agent within 30 days after
the payment date. If the shareholder returns the proceeds of a dividend or
distribution, such funds must be accompanied by a signed statement indicating
that the proceeds constitute a dividend or distribution to be invested. Such
investment will be made at the net asset value per share next determined after
receipt of the check or proceeds by the Transfer Agent.
 
    DIRECT INVESTMENTS THROUGH TRANSFER AGENT.  As discussed in the Prospectus,
a shareholder may make additional investments in Fund shares at any time through
the Shareholder Investment Account by sending a check in any amount, not less
than $100, payable to Dean Witter California Tax-Free Income Fund, directly to
the Fund's Transfer Agent. Such amounts will be applied to the purchase of Fund
shares at the net asset value per share next computed after receipt of the check
or purchase payment by the Transfer Agent. The shares so purchased will be
credited to the investor's account.
 
    SYSTEMATIC WITHDRAWAL PLAN.  As discussed in the Prospectus, a systematic
withdrawal plan (the "Withdrawal Plan") is available for shareholders who own or
purchase shares of the Fund having a minimum value of $10,000 based upon the
then current net asset value. The Withdrawal Plan provides for monthly or
quarterly (March, June, September and December) checks in any dollar amount, not
less than $25 or in any whole percentage of the account balance, on an
annualized basis. Any applicable contingent deferred sales charge will be
imposed on shares redeemed under the Withdrawal Plan (see "Redemptions and
Repurchases--Contingent Deferred Sales Charge" in the Prospectus). Therefore,
any shareholder participating in the Withdrawal Plan will have sufficient shares
redeemed from his or her account so that the proceeds (net of any applicable
contingent deferred sales charge) to the shareholder will be the designated
monthly or quarterly dollar amount.
 
    The Transfer Agent acts as agent for the shareholder in tendering to the
Fund for redemption sufficient full and fractional shares to provide the amount
of the periodic withdrawal payment designated in the application. The shares
will be redeemed at their net asset value determined, at the shareholder's
option, on the tenth or twenty-fifth day (or next following business day) of the
relevant month or quarter and normally a check for the proceeds will be mailed
by the Transfer Agent, or amounts credited to a shareholder's DWR or other
selected broker-dealer account, within five business days after the date of
redemption. The Withdrawal Plan may be terminated at any time by the Fund.
 
    Withdrawal Plan payments should not be considered as dividends, yields or
income. If periodic withdrawal plan payments continuously exceed net investment
income and net capital gains, the shareholder's original investment will be
correspondingly reduced and ultimately exhausted.
 
    Each withdrawal constitutes a redemption of shares and any gain or loss
realized must be recognized for federal income tax purposes. Although the
shareholder may make additional investments of $2,500 or more under the
Withdrawal Plan, withdrawals made concurrently with purchases of additional
shares may be inadvisable because of the contingent deferred sales charge
applicable to the redemption of shares purchased during the preceding six years
(see "Redemption and Repurchases -- Contingent Deferred Sales Charge").
 
    Any shareholder who wishes to have payments under the Withdrawal Plan made
to a third party or sent to an address other than the one listed on the account
must send complete written instructions to the Transfer Agent to enroll in the
Withdrawal Plan. The shareholder's signature on such instructions must be
guaranteed by an eligible guarantor acceptable to the Transfer Agent
(shareholders should contact the Transfer Agent for a determination as to
whether a particular institution is such an eligible guarantor). A shareholder
may, at any time, change the amount and interval of withdrawal payments through
his or her DWR or other selected broker-dealer account executive or by written
notification to the
 
                                       28
<PAGE>
Transfer Agent. In addition, the party and/or the address to which checks are
mailed may be changed by written notification to the Transfer Agent, with
signature guarantees required in the manner described above. The shareholder may
also terminate the Withdrawal Plan at any time by written notice to the Transfer
Agent. In the event of such termination, the account will be continued as a
regular shareholder investment account. The shareholder may also redeem all or
part of the shares held in the Withdrawal Plan account (see "Redemptions and
Repurchases" in the Prospectus) at any time.
 
    EXCHANGE PRIVILEGE.  As discussed in the Prospectus, the Fund makes
available to its shareholders an Exchange Privilege whereby shareholders of the
Fund may exchange their shares for shares of other Dean Witter Funds sold with a
contingent deferred sales charge ("CDSC funds"), and for shares of Dean Witter
Short-Term U.S. Treasury Trust, Dean Witter Limited Term Municipal Trust and
Dean Witter Short-Term Bond Fund, Dean Witter Balanced Growth Fund, Dean Witter
Balanced Income Fund, Dean Witter Intermediate Term U.S. Treasury Trust and for
shares of five Dean Witter money market funds (the foregoing eleven non-FESC or
CDSC funds are hereinafter referred to for purposes of this section as the
"Exchange Funds"). Exchanges may be made after the shares of the Fund acquired
by purchase (not by exchange or dividend reinvestment) have been held for 30
days. There is no waiting period for exchanges of shares acquired by exchange or
dividend reinvestment. An exchange will be treated for federal income tax
purposes the same as a repurchase or redemption of shares, on which the
shareholder may realize a capital gain or loss.
 
    Any new account established through the Exchange Privilege will have the
same registration and cash dividend or dividend reinvestment plan as the present
account, unless the Transfer Agent receives written notification to the
contrary. For telephone exchanges, the exact registration of the existing
account and the account number must be provided.
 
    Any shares held in certificate form cannot be exchanged but must be
forwarded to the Transfer Agent and deposited into the shareholder's account
before being eligible for exchange. (Certificates mailed in for deposit should
not be endorsed.)
 
   
    As described below, and in the Prospectus under the captions "Exchange
Privilege" and "Contingent Deferred Sales Charge," a contingent deferred sales
charge ("CDSC") may be imposed upon a redemption, depending on a number of
factors, including the number of years from the time of purchase until the time
of redemption or exchange ("holding period"). When shares of the Fund or any
other CDSC fund are exchanged for shares of the Exchange Funds, the exchange is
executed at no charge to the shareholder, without the imposition of the CDSC at
the time of the exchange. During the period of time the shareholder remains in
the Exchange Funds (calculated from the last day of the month in which the
shares were acquired), the holding period or "year since purchase payment made"
is frozen. When shares are redeemed out of the Exchange Funds, they will be
subject to a CDSC which would be based upon the period of time the shareholder
held shares in a CDSC fund. However, in the case of shares exchanged into the
Exchange Funds on or after April 23, 1990, upon a redemption of shares which
results in a CDSC being imposed, a credit (not to exceed the amount of the CDSC)
will be given in an amount equal to the Exchange Funds 12b-1 distribution fees
incurred on or after that date which are attributable to those shares.
Shareholders acquiring shares of the Exchange Funds pursuant to this exchange
privilege may exchange those shares back into a CDSC fund from the Exchange
Funds, with no CDSC being imposed on such exchange. The holding period
previously frozen when shares were first exchanged for shares of the Exchange
Funds resumes on the last day of the month in which shares of a CDSC fund are
reacquired. A CDSC is imposed only upon an ultimate redemption, based upon the
time (calculated as described above) the shareholder was invested in a CDSC
fund.
    
 
    In addition, shares of the Fund may be acquired in exchange for shares of
Dean Witter Funds sold with a front-end sales charge ("front-end sales charge
funds"), but shares of the Fund, however acquired, may not be exchanged for
shares of front-end sales charge funds. Shares of a CDSC fund acquired in
exchange for shares of a front-end sales charge fund (or in exchange for shares
of other Dean Witter Funds for which shares of a front-end sales charge fund
have been exchanged) are not subject to any CDSC upon their redemption.
 
                                       29
<PAGE>
   
    When shares initially purchased in a CDSC fund are exchanged for shares of
another CDSC fund, or for shares of the Exchange Funds, the date of purchase of
the shares of the fund exchanged into, for purposes of the CDSC upon redemption,
will be the last day of the month in which the shares being exchanged were
originally purchased. In allocating the purchase payments between funds for
purposes of the CDSC the amount which represents the current net asset value of
shares at the time of the exchange which were (i) purchased more than three or
six years prior to the exchange, (ii) originally acquired through reinvestment
of dividends or distributions and (iii) acquired in exchange for shares of
front-end sales charge funds, or for shares of other Dean Witter Funds for which
shares of front-end sales charge funds have been exchanged (all such shares
called "Free Shares"), will be exchanged first. Shares of Dean Witter American
Value Fund (formerly Dean Witter Industry-Valued Securities Inc.) acquired prior
to April 30, 1984, shares of Dean Witter Dividend Growth Securities Inc. and
Dean Witter Natural Resource Development Securities Inc. acquired prior to July
2, 1984, and shares of Dean Witter Strategist Fund acquired prior to November 8,
1989, are also considered Free Shares and will be the first Free Shares to be
exchanged. After an exchange, all dividends earned on shares in the Exchange
Funds will be considered Free Shares. If the exchanged amount exceeds the value
of such Free Shares, an exchange is made, on a block-by-block basis, of non-Free
Shares held for the longest period of time (except that if shares held for
identical periods of time but subject to different CDSC schedules are held in
the same Exchange Privilege account, the shares of that block that are subject
to a lower CDSC rate will be exchanged prior to the shares of that block that
are subject to a higher CDSC rate). Shares equal to any appreciation in the
value of non-Free Shares exchanged will be treated as Free Shares, and the
amount of the purchase payments for the non-Free Shares of the fund exchanged
into will be equal to the lesser of (a) the purchase payments for, or (b) the
current net asset value of, the exchanged non-Free Shares. If an exchange
between funds would result in exchange of only part of a particular block of
non-Free Shares, then shares equal to any appreciation in the value of the block
(up to the amount of the exchange) will be treated as Free Shares and exchanged
first, and the purchase payment for that block will be allocated on a pro-rata
basis between the non-Free Shares of that block to be retained and the non-Free
Shares to be exchanged. The prorated amount of such purchase payment
attributable to the retained non-Free Shares will remain as the purchase payment
for such shares, and the amount of purchase payment for the exchanged non-Free
Shares will be equal to the lesser of (a) the prorated amount of the purchase
payment for, or (b) the current net asset value of, those exchanged non-Free
Shares. Based upon the procedures described in the Prospectus under the caption
"Contingent Deferred Sales Charge," any applicable CDSC will be imposed upon the
ultimate redemption of shares of any fund, regardless of the number of exchanges
since those shares were originally purchased.
    
 
   
    With respect to the repurchase of shares of the Fund, the application of
proceeds to the purchase of new shares in the Fund or any other of the funds and
the general administration of the Exchange Privilege, the Transfer Agent acts as
agent for the Distributor and for the shareholder's Selected 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 selected broker-dealer. The
Distributor and any Selected Broker-Dealer have authorized and 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
fund and the general administration of the Exchange Privilege. No commission or
discounts will be paid to the Distributor or any selected broker-dealer for any
transactions pursuant to this Exchange Privilege.
    
 
   
    Exchanges are subject to the minimum investment requirement and any other
conditions imposed by each fund. (The minimum initial investment is $5,000 for
Dean Witter Liquid Asset Fund Inc., Dean Witter Tax-Free Daily Income Trust,
Dean Witter New York Municipal Money Market Trust and Dean Witter California
Tax-Free Daily Income Trust although those funds may, at their discretion,
accept initial investments of as low as $1,000. The minimum initial investment
is $10,000 for Dean Witter Short-Term U.S. Treasury Trust, although that fund
may, at its discretion, accept initial purchases of as low as $5,000. The
minimum initial investment is $5,000 for Dean Witter Special Value Fund. The
minimum initial investment for all other Dean Witter Funds for which the
Exchange Privilege is available is $1,000.) Upon
    
 
                                       30
<PAGE>
exchange into a money market fund, the shares of that fund will be held in a
special Exchange Privilege Account separately from accounts of those
shareholders who have acquired their shares directly from that fund. As a
result, certain services normally available to shareholders of money market
funds, including the check writing feature, will not be available for funds held
in that account.
 
   
    The Fund and each of the other Dean Witter Funds may limit the number of
times this Exchange Privilege may be exercised by any investor within a
specified period of time. Also, the Exchange Privilege may be terminated or
revised at any time by the Fund and/or any of the Dean Witter Funds for which
shares of the Fund have been exchanged, upon such notice as may be required by
applicable regulatory agencies (presently sixty days' prior written notice for
termination or material revision), provided that six months prior written notice
of termination will be given to the shareholders who hold shares of the Exchange
Funds, pursuant to this Exchange Privilege and provided further that the
Exchange Privilege may be terminated or materially revised without notice at
times (a) when the New York Stock Exchange is closed for other than customary
weekends and holidays, (b) when trading on that Exchange is restricted, (c) when
an emergency exists as a result of which disposal by the Fund of securities
owned by it is not reasonably practicable or it is not reasonably practicable
for the Fund fairly to determine the value of its net assets, (d) during any
other period when the Securities and Exchange Commission by order so permits
(provided that applicable rules and regulations of the Securities and Exchange
Commission shall govern as to whether the conditions prescribed in (b) or (c)
exist) or (e) if the Fund would be unable to invest amounts effectively in
accordance with its investment objective, policies and restrictions.
    
 
    For further information regarding the Exchange Privilege, shareholders
should contact their DWR or other selected broker-dealer account executive or
the Transfer Agent.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  As stated in the Prospectus, shares of the Fund can be redeemed
for cash at any time at the net asset value per share next determined; however,
such redemption proceeds may be reduced by the amount of any applicable
contingent deferred sales charges (see below). If shares are held in a
shareholder's account without a share certificate, a written request for
redemption to the Fund's Transfer Agent at P.O. Box 983, Jersey City, NJ 07303
is required. If certificates are held by the shareholder, the shares may be
redeemed by surrendering the certificates with a written request for redemption.
The share certificate, or an accompanying stock power, and the request for
redemption, must be signed by the shareholder or shareholders exactly as the
shares are registered. Each request for redemption, whether or not accompanied
by a share certificate, must be sent to the Fund's Transfer Agent, which will
redeem the shares at their net asset value next computed (see "Purchase of Fund
Shares" in the Prospectus) after it receives the request, and certificate, if
any, in good order. Any redemption request received after such computation will
be redeemed at the next determined net asset value. The term "good order" means
that the share certificate, if any, and request for redemption are properly
signed, accompanied by any documentation required by the Transfer Agent, and
bear signature guarantees when required by the Fund or the Transfer Agent. If
redemption is requested by a corporation, partnership, trust or fiduciary, the
Transfer Agent may require written evidence of authority acceptable to the
Transfer Agent be submitted before such request is accepted.
 
   
    Whether certificates are held by the shareholder or shares are held in a
shareholder's account, if the proceeds are to be paid to any person other than
the record owner, or if the proceeds are to be paid to a corporation (other than
the Distributor or a selected broker-dealer for the account of the shareholder),
partnership, trust or fiduciary, or sent to the shareholder at an address other
than the registered address, signatures must be guaranteed by an eligible
guarantor acceptable to the Transfer Agent (shareholders should contact the
Transfer Agent for a determination as to whether a particular institution is
such an eligible guarantor). A stock power may be obtained from any dealer or
commercial bank. The Fund may change the signature guarantee requirements from
time to time upon notice to shareholders, which may be by means of a supplement
to the prospectus or a revised prospectus.
    
 
                                       31
<PAGE>
    CONTINGENT DEFERRED SALES CHARGE.  As stated in the Prospectus, a contingent
deferred sales charge ("CDSC") will be imposed on any redemption by an investor
if after such redemption the current value of the investor's shares of the Fund
is less than the dollar amount of all payments by the shareholder for the
purchase of Fund shares during the preceding six years. However, no CDSC will be
imposed to the extent that the net asset value of the shares redeemed does not
exceed: (a) the current net asset value of shares purchased more than six years
prior to the redemption, plus (b) the current net asset value of shares
purchased through reinvestment of dividends or distributions of the Fund or
another Dean Witter Fund (see "Shareholder Services -- Targeted Dividends"),
plus (c) the current net asset value of shares acquired in exchange for (i)
shares of Dean Witter front-end sales charge funds, or (ii) shares of other Dean
Witter Funds for which shares of front-end sales charge funds have been
exchanged (see "Shareholder Services -- Exchange Privilege"), plus (d) increases
in the net asset value of the investor's shares above the total amount of
payments for the purchase of Fund shares made during the preceding six years.
The CDSC will be paid to the Distributor.
 
    In determining the applicability of the CDSC to each redemption, the amount
which represents an increase in the net asset value of the investor's shares
above the amount of the total payments for the purchase of shares within the
last six years will be redeemed first. In the event the redemption amount
exceeds such increase in value, the next portion of the amount redeemed will be
the amount which represents the net asset value of the investor's shares
purchased more than six years prior to the redemption and/or shares purchased
through reinvestment of dividends or distributions and/or shares acquired in
exchange for shares of Dean Witter front-end sales charge funds or for shares of
other Dean Witter funds which shares of front-end sales charge funds have been
exchanged. A portion of the amount redeemed which exceeds an amount which
represents both such increase in value and the value of shares purchased more
than six years prior to the redemption and/or shares purchased through
reinvestment of dividends or distributions and/or shares acquired in the
above-described exchanges will be subject to a CDSC.
 
    The amount of the CDSC, if any, will vary depending on the number of years
from the time of payment for the purchase of Fund shares until the time of
redemption of such shares. For purposes of determining the number of years from
the time of any payment for the purchase of shares, all payments made during a
month will be aggregated and deemed to have been made on the last day of the
month. The following table sets forth the rates of the CDSC:
 
<TABLE>
<CAPTION>
                                                                                    CONTINGENT DEFERRED
                                    YEAR SINCE                                       SALES CHARGE AS A
                                     PURCHASE                                          PERCENTAGE OF
                                   PAYMENT MADE                                       AMOUNT REDEEMED
- ----------------------------------------------------------------------------------  --------------------
<S>                                                                                 <C>
First.............................................................................          5.0%
Second............................................................................          4.0%
Third.............................................................................          3.0%
Fourth............................................................................          2.0%
Fifth.............................................................................          2.0%
Sixth.............................................................................          1.0%
Seventh and thereafter............................................................          None
</TABLE>
 
    In determining the rate of the CDSC, it will be assumed that a redemption is
made of shares held by the investor for the longest period of time within the
applicable six-year period. This will result in any such CDSC being imposed at
the lowest possible rate. Accordingly, shareholders may redeem, without
incurring any CDSC, amounts equal to any net increase in the value of their
shares above the amount of their purchase payments made within the past six
years and amounts equal to the current value of shares purchased more than six
years prior to the redemption and shares purchased through reinvestment of
dividends or distributions or acquired in exchange for shares of Dean Witter
front-end sales charge funds, or for shares of other Dean Witter Funds for which
shares of front-end sales charge funds have been exchanged. The CDSC will be
imposed, in accordance with the table shown above, on any redemptions within six
years of purchase which are in excess of these amounts and which redemptions
 
                                       32
<PAGE>
are not (a) requested within one year of death or initial determination of
disability of a shareholder, or (b) made pursuant to certain taxable
distributions from retirement plans or retirement accounts, as described in the
Prospectus.
 
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  As discussed in the Prospectus,
payment for shares presented for repurchase or redemption will be made by check
within seven days after receipt by the Transfer Agent of the certificate and/or
written request in good order. The term "good order" means that the share
certificate, if any, and request for redemption, are properly signed,
accompanied by any documentation required by the Transfer Agent, and bear
signature guarantees when required by the Fund or the Transfer Agent. Such
payment may be postponed or the right of redemption suspended at times (a) when
the New York Stock Exchange is closed for other than customary weekends and
holidays, (b) when trading on that Exchange is restricted, (c) when an emergency
exists as a result of which disposal by the Fund of securities owned by it is
not reasonably practicable or it is not reasonably practicable for the Fund
fairly to determine the value of its net assets, or (d) during any other period
when the Securities and Exchange Commission by order so permits; provided that
applicable rules and regulations of the Securities and Exchange Commission shall
govern as to whether the conditions prescribed in (b) or (c) exist. If the
shares to be redeemed have recently been purchased by check (including a
certified or bank cashier's check), payment of redemption proceeds may be
delayed for the minimum time needed to verify that the check used for investment
has been honored (not more than fifteen days from the time of investment of the
proceeds of the check by the Transfer Agent). Shareholders maintaining margin
accounts with DWR or another selected broker-dealer are referred to their
account executive regarding restrictions on redemption of shares of the Fund
pledged in the margin account.
 
    TRANSFERS OF SHARES.  In the event a shareholder requests a transfer of any
shares to a new registration, such shares will be transferred without sales
charge at the time of transfer. With regard to the status of shares which are
either subject to the contingent deferred sales charge or free of such charge
(and with regard to the length of time shares subject to the charge have been
held), any transfer involving less than all of the shares in an account will be
made on a pro-rata basis (that is, by transferring shares in the same proportion
that the transferred shares bear to the total shares in the account immediately
prior to the transfer). The transferred shares will continue to be subject to
any applicable contingent deferred sales charge as if they had not been so
transferred.
 
    REINSTATEMENT PRIVILEGE.  As discussed in the Prospectus, a shareholder who
has had his or her shares redeemed or repurchased and has not previously
exercised this reinstatement privilege may, within 30 days after the redemption
or repurchase, reinstate any portion or all of the proceeds of such redemption
or repurchase in shares of the Fund at the net asset value next determined after
a reinstatement request, together with the proceeds, is received by the Transfer
Agent.
 
    Exercise of the reinstatement privilege will not affect the federal income
tax and California personal income tax treatment of any gain or loss realized
upon the redemption or repurchase, except that if the redemption or repurchase
resulted in a loss and reinstatement is made in shares of the Fund, some or all
of the loss, depending on the amount reinstated, will not be allowed as a
deduction for federal income tax and California personal income tax purposes but
will be applied to adjust the cost basis of the shares acquired upon
reinstatement.
 
                                       33
<PAGE>
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    As stated in the Prospectus, the Fund intends to distribute all of its net
investment income and all of its net short-term capital gains, if any, and will
determine whether to retain all or part of any net long-term capital gains for
reinvestment.
 
    As discussed in the Prospectus, the Fund may invest a portion of its assets
in certain "private activity bonds" issued after August 7, 1986. As a result, a
portion of the exempt-interest dividends paid by the Fund may be an item of tax
preference to shareholders subject to the federal 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.
 
    Each shareholder will be sent at least a quarterly summary of his or her
account, including information as to reinvested dividends and capital gains
distributions. Share certificates for dividends or distributions will not be
issued unless a shareholder requests in writing that a certificate be issued for
a specific number of shares.
 
    In computing interest income, the Fund will amortize any premiums and
original issue discounts on securities owned. Capital gains or losses realized
upon sale or maturity of such securities will be based on their amortized cost.
 
    Gains or losses on the sales of securities by the Fund will be long-term
capital gains or losses if the securities have been held by the Fund for more
than twelve months. Gains or losses on the sale of securities held for twelve
months or less will be short-term capital gains or losses. Gains and losses on
the sale, expiration or other termination of options on securities will
generally be treated as gains and losses from the sale of securities. Pursuant
to present federal income tax laws, futures contracts held by the Fund at the
end of each fiscal year will be required to be "marked to market", that is,
treated as having been sold at their fair market value at such date. Sixty
percent of any gain or loss recognized on these deemed sales will be treated as
long-term capital gain or loss, and the remainder will be treated as short-term
capital gain or loss. Gains or losses from options on futures and listed options
on debt instruments will similarly be treated as part short-term and part
long-term capital gains or losses, unless such gains or losses were incurred as
part of a securities "straddle," in which case the appropriate straddle rules of
the Internal Revenue Code (the "Code") would apply.
 
    Because the Fund intends to distribute all of its net investment income and
capital gains to shareholders and otherwise continue to qualify as a regulated
investment company under Subchapter M of the Internal Revenue Code, it is not
expected that the Fund will be required to pay any federal income tax.
Shareholders will normally have to pay federal income taxes, and any applicable
state and/or local income taxes, on the dividends and distributions they receive
from the Fund. Such dividends and distributions, to the extent that they are
derived from net investment income or short-term capital gains, are taxable to
the shareholder as ordinary income regardless of whether the shareholder
receives such payments in additional shares or in cash. Any dividends declared
in the last quarter of any year which are paid in the following calendar year
prior to February 1 will be deemed received by the shareholder in the prior
calendar year.
 
    With respect to the Fund's investments in zero coupon bonds, the Fund
accrues income prior to any actual cash payments by their issuers. In order to
continue to comply with Subchapter M of the Code and remain able to forego
payment of Federal income tax on its income and capital gains, the Fund must
distribute all of its net investment income, including income accrued from zero
coupon bonds. As such, the Fund may be required to dispose of some of its
portfolio securities under disadvantageous circumstances to generate the cash
required for distribution.
 
    One of the requirements for regulated investment company status is that at
least 90% of a Fund's gross income be derived from dividends, interest, gains
from the sale or other disposition of securities and certain other related
income. Another requirement for regulated investment company status is that
 
                                       34
<PAGE>
less than 30% of the Fund's gross income can be derived from, among other
sources, gains from the sale or other disposition of securities held less than
three months. Accordingly, the Fund may be restricted in the writing of options
on securities held for less than three months, in the writing of options which
expire in less than three months, and in effecting closing transactions with
respect to call or put options which have been written or purchased less than
three months prior to such transactions. The Fund may also be restricted in its
ability to engage in transactions involving futures contracts.
 
    Under the Revenue Reconciliation Act of 1993, all or a portion of the Fund's
gain from the sale or redemption of tax-exempt obligations purchased at a market
discount after April 30, 1993 will be treated as ordinary income rather than
capital gain. This rule may increase the amount of ordinary income dividends
received by shareholders.
 
    As discussed in the Prospectus, the Fund intends to qualify to pay
"exempt-interest dividends" to its shareholders by maintaining, as of the close
of each quarter of its taxable year, at least 50% of the value of its total
assets in tax-exempt securities. An exempt-interest dividend is that part of
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.
 
    Within sixty days after the end of its fiscal year, the Fund will mail to
shareholders a statement indicating the percentage of the dividend distributions
for such fiscal year which constitutes exempt-interest dividends and the
percentage, if any, that is taxable, and the percentage, if any, of the exempt-
interest dividends which constitutes an item of tax preference, and to what
extent the taxable portion is long-term capital gain, short-term capital gain or
ordinary income. These percentages should be applied uniformly to all monthly
distributions made during the fiscal year to determine the proportion of
dividends that is tax-exempt. The percentages may differ from the percentage of
tax-exempt dividend distributions for any particular month.
 
    Shareholders will be subject to federal income tax on dividends paid from
interest income derived from taxable securities and on distributions of 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 gains, regardless of
how long the shareholder has held Fund shares and 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, none of such dividend
distributions will be eligible for the 70% dividends received deduction
generally available to corporations. Net long-term capital gains distributions
are not eligible for the dividends received deduction.
 
    Any loss on the sale or exchange of shares of the Fund which are held for
six months or less is disallowed to the extent of the amount of any
exempt-interest dividends paid with respect to such shares. Treasury Regulations
may provide for a reduction in such required holding period. If a shareholder
receives a distribution that is taxed as long-term capital gain on shares held
for six months or less and sells those shares at a loss, the loss will be
treated as a long-term capital loss to the extent of the capital gains
distribution.
 
    Interest on indebtedness incurred or continued by a shareholder to purchase
or carry shares of the Fund is not deductible to the extent allocable to
exempt-interest dividends of the Fund (which allocation does not take into
account capital gain dividends of the Fund). 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.
 
    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. It can be expected that
 
                                       35
<PAGE>
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 such event, the Fund would re-evaluate its investment
objective and policies.
 
    In any year in which the Fund qualifies as a regulated investment company
under the Internal Revenue Code and is exempt from federal income tax, (i) the
Fund will also be exempt from the California corporate income and franchise
taxes to the extent it distributes its income and (ii), provided 50% or more of
the value of the total assets of the Fund at the close of each quarter of its
taxable year consists of obligations the interest on which (when held by an
individual) is exempt from personal income taxation under California law, the
Fund will be qualified under California law to pay "exempt-interest" dividends
which will be exempt from the California personal income tax.
 
    The portion of dividends constituting exempt-interest dividends is that
portion derived from interest on obligations which pay interest excludable from
California personal income under California law. The total amount of California
exempt-interest dividends paid by the Fund to all of its shareholders with
respect to any taxable year cannot exceed the amount of interest received by the
Fund during such year on such obligations less any expenses and expenditures
(including dividends paid to corporate shareholders) deemed to have been paid
from such interest. Any dividends paid to corporate shareholders subject to the
California franchise or corporate income tax will be taxed as ordinary dividends
to such shareholders.
 
    Individual shareholders of the Fund who reside in California will not be
subject to California personal income tax on distributions received from the
Fund to the extent such distributions are attributable to interest received by
the Fund during its taxable year on obligations, the interest from which (when
held by an individual) is exempt from taxation under California law.
 
    Because, unlike federal law, California law does not impose personal income
tax on an individual's Social Security benefits, the receipt of California
exempt-interest dividends will have no effect on an individual's California
personal income tax.
 
    Individual shareholders will normally be subject to federal and California
personal income tax on dividends paid from interest income derived from taxable
securities and distributions of net capital gains. In addition, distributions
other than exempt-interest dividends to such shareholders are includable in
income subject to the California alternative minimum tax. For federal and
California personal income tax purposes, distributions of long-term capital
gains, if any, are taxable to shareholders as long-term capital gains,
regardless of how long a shareholder has held shares of the Fund, and regardless
of whether the distributions are received in additional shares or in cash. In
addition, unlike federal law, California law provides that the shareholders of
the Fund will not be subject to tax, or receive a credit for tax paid by the
Fund, on undistributed capital gains, if any.
 
    Interest on indebtedness incurred by shareholders or related parties to
purchase or carry shares of an investment company paying exempt-interest
dividends, such as the Fund, generally will not be deductible by the investor
for California personal income tax purposes. In addition, as a result of
California's incorporation of certain provisions of the Code, a loss realized by
a shareholder upon the sale of shares held for six months or less may be
disallowed to the extent of any exempt-interest dividends received with respect
to such shares. Moreover, any loss realized upon the sale of shares within six
months from the date of purchase of such shares and following receipt of a
long-term capital gains distribution will be treated as a long-term capital loss
to the extent of such long-term capital gains distribution. Finally, any loss
realized upon the sale of shares within thirty days before or after the
acquisition of other shares of the Fund may be disallowed under the "wash sale"
rules.
 
    Distributions from investment income and long-term and short-term capital
gains will not be excluded from taxable income in determining the California
corporate franchise tax for corporate shareholders. Such distributions also may
be includable in income subject to the alternative minimum tax. In addition,
distributions from investment income and long-term and short-term capital gains
may be subject to state taxes in states other than California and to local
taxes.
 
                                       36
<PAGE>
    The foregoing is only a summary of some of the important California income
tax considerations generally affecting the Fund and its shareholders. No attempt
is made to present a detailed explanation of the California personal income tax
treatment of the Fund or its shareholders, and this discussion is not intended
as a substitute for careful planning. Shareholders should consult their tax
advisers regarding specific questions as to federal, state or local taxes and
how these relate to their own tax situation.
 
    The Fund is organized as a Massachusetts business trust. Under current law,
so long as it qualifies as a "regulated investment company" under the Internal
Revenue Code, the Fund itself is not liable for any income or franchise tax in
The Commonwealth of Massachusetts.
 
    Any dividend or capital gains distribution received by a shareholder from
any investment company will have the effect of reducing the net asset value of
the shareholder's stock in that fund by the exact amount of the dividend or
capital gains distribution. Furthermore, capital gains distributions are, and
some portion of the dividends may be, subject to income tax. If the net asset
value of the shares should be reduced below a shareholder's cost as a result of
the payment of taxable dividends or the distribution of realized long-term
capital gains, such payment or distribution would be in part a return of capital
but nonetheless taxable to the shareholder. Therefore, an investor should
consider the tax implications of purchasing Fund shares immediately prior to a
distribution record date.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
   
    As discussed in the Prospectus, from time to time the Fund may quote its
"yield" and/or its "total return" in advertisements and sales literature. Yield
is calculated for any 30-day period as follows: the amount of interest income
for each security in the Fund's portfolio is determined in accordance with
regulatory requirements; the total for the entire portfolio constitutes the
Fund's gross income for the period. Expenses accrued during the period are
subtracted to arrive at "net investment income". The resulting amount is divided
by the product of the net asset value per share on the last day of the period
multiplied by the average number of Fund shares outstanding during the period
that were entitled to dividends. This amount is added to 1 and raised to the
sixth power. 1 is then subtracted from the result and the difference is
multiplied by 2 to arrive at the annualized yield. For the 30-day period ended
December 31, 1996, the Fund's yield, calculated pursuant to the formula
described above, was 4.07%.
    
 
   
    The Fund may also quote a "tax-equivalent yield" determined by dividing the
tax-exempt portion of the quoted yield by 1 minus the stated income tax rate and
adding the result to the portion of the yield that is not tax-exempt. The Fund's
tax-equivalent yield, based upon a combined Federal and California personal
income tax bracket of 46.24% (the highest current individual marginal tax rate),
for the 30-day period ending December 31, 1996, was 7.57% based upon the yield
quoted above.
    
 
    The Fund's "average annual total return" represents an annualization of the
Fund's total return over a particular period and is computed by finding the
annual percentage rate which will result in the ending redeemable value of a
hypothetical $1,000 investment made at the beginning of a one, five or ten year
period, or for the period from the date of commencement of the Fund's
operations, if shorter than any of the foregoing. The ending redeemable value is
reduced by any contingent deferred sales charge at the end of the one, five or
ten year or other period. For the purpose of this calculation, it is assumed
that all dividends and distributions are reinvested. The formula for computing
the average annual total return involves a percentage obtained by dividing the
ending redeemable value by the amount of the initial investment, taking a root
of the quotient (where the root is equivalent to the number of years in the
period) and subtracting 1 from the result.
 
   
    The average annual total returns of the Fund for the year ended December 31,
1996, the five years ended December 31, 1996 and for the ten years ended
December 31, 1996, were -1.74%, 5.61% and 6.30%, respectively.
    
 
    In addition to the foregoing, the Fund may advertise its total return over
different periods of time by means of aggregate, average, year-by-year or other
types of total return figures. Such calculations may or may not reflect the
deduction of the contingent deferred sales charge which, if reflected, would
reduce
 
                                       37
<PAGE>
   
the performance quoted. For example, the average annual total return of the Fund
may be calculated in the manner described above, but without deduction for any
applicable contingent deferred sales charge. Based on this calculation, the
average annual total returns of the Fund for the year ended December 31, 1996,
the five years ended December 31, 1996 and for the ten years ended December 31,
1996, were 3.13%, 5.93% and 6.30%, respectively.
    
 
   
    In addition, the Fund may compute its aggregate total return for specified
periods by determining the aggregate percentage rate which will result in the
ending value of a hypothetical $1,000 investment made at the beginning of the
period. For the purpose of this calculation, it is assumed that all dividends
and distributions are reinvested. The formula for computing aggregate total
return involves a percentage obtained by dividing the ending value (without the
reduction for any contingent deferred sales charge) by the initial $1,000
investment and subtracting 1 from the result. Based on the foregoing
calculation, the Fund's total return for the year ended December 31, 1996, the
five years ended December 31, 1996 and for the ten years ended December 31, 1996
were 3.13%, 33.40% and 84.15%, respectively.
    
 
   
    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 1 to the Fund's
aggregate total return (expressed as a decimal and without reflecting the
deduction of the contingent deferred sales charge) and multiplying by $10,000
$50,000 or $100,000. Investments of $10,000, $50,000 and $100,000 in the Fund at
inception would have grown to $27,792, $138,960 and $277,920, respectively at
December 31, 1996.
    
 
    The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes compiled by independent organizations.
 
SHARES OF THE FUND
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, the shareholders of the Fund are entitled to
a full vote for each full share held. All of the Trustees, except for Messrs.
Bozic, Purcell and Schroeder, have been elected by the shareholders of the Fund,
most recently at a Special Meeting of Shareholders held on January 12, 1993.
Messrs. Bozic, Purcell and Schroeder were elected by the other Trustees of the
Fund on April 8, 1994. The Trustees themselves have the power to alter the
number and the terms of office of the Trustees, and they may at any time
lengthen their own terms or make their terms of unlimited duration and appoint
their own successors, provided that always at least a majority of the Trustees
has been elected by the shareholders of the Fund. Under certain circumstances
the Trustees may be removed by action of the Trustees. The shareholders also
have the right under certain circumstances to remove the Trustees. The voting
rights of shareholders are not cumulative, so that holders of more than 50
percent of the shares voting can, if they choose, elect all Trustees being
selected, while the holders of the remaining shares would be unable to elect any
Trustees.
 
   
    The Declaration of Trust permits the Trustees to authorize the creation of
additional series of shares (the proceeds of which would be invested in
separate, independently managed portfolios) and additional classes of shares
within any series (which would be used to distinguish among the rights of
different categories of shareholders, as might be required by future regulations
or other unforeseen circumstances). The Trustees have not presently authorized
any such additional series or classes of shares.
    
 
    The Declaration of Trust further 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's 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.
 
                                       38
<PAGE>
    The Fund is authorized to issue an unlimited number of shares of beneficial
interest. The Fund shall be of unlimited duration subject to the provisions in
the Declaration of Trust concerning termination by action of the shareholders.
 
CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------
 
    The Bank of New York, 90 Washington Street, New York, New York 10286 is the
Custodian of the Fund's assets. The Custodian has no part in deciding the Fund's
investment policies or which securities are to be purchased or sold for the
Fund. Any of the Fund's cash balances with the Custodian in excess of $100,000
are unprotected by Federal deposit insurance. Such balances may, at times, be
substantial.
 
   
    Dean Witter Trust Company, Harborside Financial Center, Plaza Two,, Jersey
City, New Jersey 07311 is the Transfer Agent of the Fund's shares and Dividend
Disbursing Agent for payment of dividends and distributions of Fund shares and
Agent for shareholders under various investment plans described herein. Dean
Witter Trust Company is an affiliate of Dean Witter Distributors Inc., the
Fund's Distributor and Dean Witter InterCapital Inc., the Fund's Investment
Manager. As Transfer Agent and Dividend Disbursing Agent, Dean Witter Trust
Company's responsibilities include maintaining shareholder accounts, disbursing
cash dividends and reinvesting dividends, processing account registration
changes, handling purchase and redemption transactions, mailing prospectuses and
reports, mailing and tabulating proxies, processing share certificate
transactions, and maintaining shareholder records and lists. For these services,
Dean Witter Trust Company receives a per shareholder account fee from the Fund.
    
 
INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
    Price Waterhouse LLP serves as the independent accountants of the Fund. The
independent accountants are responsible for auditing the annual financial
statements of the Fund.
 
REPORTS TO SHAREHOLDERS
- --------------------------------------------------------------------------------
 
    The Fund will send to shareholders, at least semi-annually, reports showing
the Fund's portfolio and other information. An annual report, containing
financial statements audited by independent accountants, together with their
report thereon, will be sent to shareholders each year.
 
    The Fund's fiscal year ends on December 31. The financial statements of the
Fund must be audited at least once a year by independent accountants whose
selection is made annually by the Fund's Trustees.
 
LEGAL COUNSEL
- --------------------------------------------------------------------------------
 
   
    Barry Fink, Esq., who is an officer and General Counsel of the Investment
Manager, is an officer and General Counsel of the Fund.
    
 
EXPERTS
- --------------------------------------------------------------------------------
 
   
    The annual financial statements of the Fund for the year ended December 31,
1996 which are included herein and incorporated by reference in the Prospectus
have been so included and incorporated in reliance on the report of Price
Waterhouse LLP, independent accountants, given on the authority of said firm as
experts in auditing and accounting.
    
 
                                       39
<PAGE>
REGISTRATION STATEMENT
- --------------------------------------------------------------------------------
 
    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 Securities and Exchange Commission. The complete Registration
Statement may be obtained from the Securities and Exchange Commission upon
payment of the fee prescribed by the rules and regulations of the Commission.
 
                                       40
<PAGE>
   
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
    
   
REPORT OF INDEPENDENT ACCOUNTANTS
    
 
   
TO THE SHAREHOLDERS AND TRUSTEES
OF DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
    
 
   
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 Dean Witter California Tax-Free
Income Fund (the "Fund") at December 31, 1996, the results of its operations for
the year then ended, the changes in its net assets for each of the two years in
the period then ended and the financial highlights for each of the ten years in
the period then ended, in conformity with generally accepted accounting
principles. These financial statements and financial highlights (hereafter
referred to as "financial statements") are the responsibility of the 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, 1996 by correspondence with the
custodian and brokers, provide a reasonable basis for the opinion expressed
above.
    
 
   
PRICE WATERHOUSE LLP
    
   
1177 AVENUE OF THE AMERICAS
    
   
NEW YORK, NEW YORK 10036
FEBRUARY 10, 1997
    
 
   
                      1996 FEDERAL TAX NOTICE (UNAUDITED)
    
 
   
       During the year ended December 31, 1996, the Fund paid to the
       shareholders $0.58 per share from net investment income. All of
       the Fund's dividends from net investment income were exempt
       interest dividends, excludable from gross income for Federal
       income tax purposes. For the year ended December 31, 1996, the
       Fund paid to shareholders $0.14 per share from long-term capital
       gains.
    
 
                                       41
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              CALIFORNIA TAX-EXEMPT MUNICIPAL BONDS (92.8%)
              GENERAL OBLIGATION (5.0%)
              California,
$     5,000     Ser 1990........................................        7.00%      08/01/07    $     5,827,250
      5,000     Ser 1990........................................        7.00       08/01/08          5,856,500
      2,000     Ser AT..........................................        9.50       02/01/10          2,755,180
     10,000     Various Purpose dtd 04/01/93 (FSA)..............        5.50       04/01/19          9,760,900
     15,000     Ser 1996 (AMBAC)................................        5.25       06/01/21         14,420,850
      4,000   Santa Margarita/Dana Point Authority, Impr Dists
                #3, 3A, 4 & 4A 1994 Ser B Refg (MBIA)...........        5.75       08/01/20          4,023,200
      6,000   Santa Margarita Water District, Impr Dists #3 & 4
                Refg Ser 1986...................................        7.50       11/01/05          6,204,000
                                                                                               ---------------
- -----------
                                                                                                    48,847,880
     47,000
                                                                                               ---------------
- -----------
              EDUCATIONAL FACILITIES REVENUE (4.1%)
              California Educational Facilities Authority,
      1,750     Loyola Marymount University Ser 1992 B..........        6.55       10/01/12          1,869,437
      2,300     Loyola Marymount University Ser 1992 B..........        6.60       10/01/22          2,457,872
      3,000     Stanford University Ser I.......................        6.75       01/01/13          3,184,410
      2,000     University of Southern California Ser 1997 A
                (WI)............................................        5.70       10/01/15          1,976,300
      3,500     University of Southern California Ser 1989 A....        7.20       10/01/15          3,638,390
              California Statewide Communities Development
              Authority,
      3,400     Gemological Institute of America COPs (Connie
                Lee)............................................        6.00       05/01/20          3,480,138
      4,100     Gemological Institute of America COPs (Connie
                Lee)............................................        6.00       05/01/25          4,196,637
     10,000   University of California, Multiple Purpose Refg
                Ser 1993 C (AMBAC)..............................        5.125      09/01/18          9,336,000
     10,000   Whittier, Whittier College Refg Ser 1993 (Connie
                Lee)............................................        5.40       12/01/18          9,459,400
                                                                                               ---------------
- -----------
                                                                                                    39,598,584
     40,050
                                                                                               ---------------
- -----------
              ELECTRIC REVENUE (8.2%)
     13,000   Los Angeles Department of Water & Power, Second
                Issue of 1993...................................        5.40       11/15/13         12,648,480
      5,000   Northern California Power Agency, Hydro #1 1993
                Refg Ser A (MBIA)...............................        5.50       07/01/16          4,923,650
              Sacramento Municipal Utility District,
      5,700     Refg 1994 Ser H (MBIA)..........................        5.75       01/01/11          5,877,612
     26,000     Refg 1992 Ser A (FGIC)..........................        6.30       08/15/18         27,526,720
              Southern California Public Power Authority,
      7,000     Mead-Adelanto 1994 Ser A........................        5.15       07/01/15          6,725,670
      1,750     Transmission Refg Ser 1988 (FGIC)...............        0.00       07/01/06          1,084,580
              Puerto Rico Electric Power Authority,
      9,000     Power Ser O.....................................        5.00       07/01/12          8,331,030
      9,000     Power Ser X.....................................        6.125      07/01/21          9,220,500
      4,000     Power Ser X.....................................        5.50       07/01/25          3,828,280
                                                                                               ---------------
- -----------
                                                                                                    80,166,522
     80,450
                                                                                               ---------------
- -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       42
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              HOSPITAL REVENUE (8.9%)
$     7,100   Antelope Valley Hospital District, Ser 1989
                COPs............................................        7.35%      01/01/20    $     7,392,378
              Bakersfield,
      1,750     Bakersfield Memorial Hospital Ser 1992 A........        6.375      01/01/12          1,829,713
      2,000     Bakersfield Memorial Hospital Ser 1992 A........        6.50       01/01/22          2,088,960
      7,600   Berkeley, Alta Bates Medical Center Refg Ser A....        6.50       12/01/11          7,812,116
              California Health Facilities Financing Authority,
      5,000     Children's Hospital - San Diego Refg Ser 1996
                (MBIA)..........................................        5.375      07/01/16          4,879,100
      3,500     Sutter/CHS Ser 1996 A (MBIA)....................        5.875      08/15/16          3,581,165
     20,000   Desert Hospital District, Desert Hospital Corp Ser
                1992 COPs (FSA).................................        6.392      07/28/20         21,197,000
              Duarte,
      3,000     City of Hope National Medical Center Ser 1993
                COPs............................................        5.50       04/01/01          3,021,150
      4,000     City of Hope National Medical Center Ser 1993
                COPs............................................        6.25       04/01/23          4,037,200
      6,000   Eden Township Hospital District, Ser 1989.........        7.40       11/01/19          6,333,060
              Madera County,
      7,500     Valley Children's Hospital Ser 1995 COPs
                (MBIA)..........................................        6.50       03/15/15          8,364,225
      2,000     Valley Children's Hospital Ser 1995 COPs
                (MBIA)..........................................        6.125      03/15/23          2,091,660
      2,950   Rancho Mirage Joint Powers Financing Authority,
                Eisenhower Memorial Hospital Ser 1992 COPs......        7.00       03/01/22          3,193,729
      2,000   Stockton, Dameron Hospital Assn Refg Ser 1988.....        8.25       12/01/00          2,092,400
      9,000   University of California, UCLA Medical Center Refg
                Ser 1994 (MBIA).................................        5.50       12/01/14          8,898,570
                                                                                               ---------------
- -----------
                                                                                                    86,812,426
     83,400
                                                                                               ---------------
- -----------
              INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (5.4%)
              California Pollution Control Financing Authority,
      5,000     Atlantic Richfield Co Ser 1996 A................        5.00       04/01/08          4,898,550
      6,000     Pacific Gas & Electric Co 1987 Ser B (AMT)......        8.875      01/01/10          6,321,720
      3,000     San Diego Gas and Electric Co 1996 Ser A........        5.90       06/01/14          3,143,520
      5,000     Southern California Edison Co 1988 Ser A
                (AMT)...........................................        6.90       09/01/06          5,333,950
     10,000     Southern California Edison Co 1987 Ser D........        6.85       12/01/08         10,645,600
     10,000     Southern California Edison Co 1992 Ser B
                (AMT)...........................................        6.40       12/01/24         10,421,000
      5,000     Waste Management Inc 1991 Ser A (AMT)...........        7.15       02/01/11          5,444,900
      1,400   Intermodal Container Transfer Facility Joint
                Powers Authority,
                Southern Pacific Transportation Co 1989 Ser A...        7.70       11/01/14          1,489,390
      5,000   San Diego, San Diego Gas & Electric Co 1987 Ser A
                (AMT)...........................................        8.75       03/01/23          5,227,800
                                                                                               ---------------
- -----------
                                                                                                    52,926,430
     50,400
                                                                                               ---------------
- -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       43
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              MORTGAGE REVENUE - SINGLE FAMILY (4.6%)
              California Housing Finance Agency,
$     9,000     Home 1995 Ser J (AMBAC).........................        6.00%      08/01/17    $     9,147,510
      5,120     Home 1989 Ser A.................................        7.75       08/01/17          5,397,606
      7,000     Home 1995 Ser M (AMT) (MBIA)....................        6.15       08/01/27          7,072,380
      9,215     Home 1995 Ser K (AMT)(AMBAC)....................        6.25       08/01/27          9,385,754
      4,275     Home 1991 Ser G (AMT)...........................        7.05       08/01/27          4,478,063
      7,000     Purchase 1995 Ser B-2 (AMT).....................        6.30       08/01/24          7,158,270
              Puerto Rico Housing Finance Corporation,
      1,115     Portfolio One GNMA-Backed Ser B.................        7.65       10/15/22          1,171,921
        665     Portfolio One GNMA-Backed Ser C.................        6.85       10/15/23            697,139
                                                                                               ---------------
- -----------
                                                                                                    44,508,643
     43,390
                                                                                               ---------------
- -----------
              PUBLIC FACILITIES REVENUE (5.8%)
     10,000   Beverly Hills Public Financing Authority, 1993
                Refg Ser A (MBIA)...............................        5.65       06/01/15          9,808,900
      1,875   Campbell Redevelopment Agency, 1991 Financing
                COPs............................................        6.75       10/01/17          2,005,463
      3,000   El Dorado County Public Agency Financing
                Authority, 1996 (FGIC)..........................        5.50       02/15/21          2,948,670
      5,560   Grossmont Union High School District, Land
                Acquisition COPs (FSA)..........................        7.375      09/01/25          5,797,356
              Los Angeles County,
      5,400     1991 Master Refg COPs...........................        6.708      05/01/15          5,578,200
      9,500     Public Properties Refg of 1987 COPs.............        0.00       04/01/04          5,862,545
      5,500   Los Angeles County-West Covina Civic Center
                Authority, 1987 Refg COPs.......................        6.875      09/01/14          5,669,785
      6,500   Nevada County, Western Nevada County Solid Waste
                Mgmt 1991 COPs..................................        7.50       06/01/21          6,734,585
     10,000   San Jose Financing Authority, Convention Center
                Refg 1993 Ser C.................................        6.375      09/01/13         10,430,900
      1,200   Puerto Rico Infrastructure Financing Authority,
                Special Tax Ser 1988 A..........................        7.90       07/01/07          1,287,360
                                                                                               ---------------
- -----------
                                                                                                    56,123,764
     58,535
                                                                                               ---------------
- -----------
              TAX ALLOCATION (6.8%)
      5,000   Fountain Valley Agency for Community Development,
                1985 Industrial Area............................        9.10       01/01/15          5,163,650
              Garden Grove Community Development Agency,
      5,000     Refg Issue of 1993..............................        5.70       10/01/13          4,868,100
      7,000     Refg Issue of 1993..............................        5.875      10/01/23          6,819,750
              Industry Urban-Development Agency,
     10,000     Civic Rec-Ind Redev Proj #1 Sub Refg Ser 1987
                A...............................................        7.30       05/01/06         10,262,600
      2,165     Civic Rec-Ind Redev Proj #1 Sub Refg Ser 1987
                B...............................................        7.375      05/01/15          2,221,203
     25,500   Long Beach Financing Authority, Ser 1992
                (AMBAC).........................................        6.00       11/01/17         27,297,750
      9,585   Pleasanton Joint Powers Financing Authority,
                Reassessment 1993 Ser A.........................        6.15       09/02/12          9,875,905
                                                                                               ---------------
- -----------
                                                                                                    66,508,958
     64,250
                                                                                               ---------------
- -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       44
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              TRANSPORTATION FACILITIES REVENUE (15.4%)
$     5,000   Contra Costa Transportation Authority, Sales Tax
                1993 Ser A (FGIC)...............................        6.00%      03/01/09    $     5,408,550
     15,000   Foothills/Eastern Transportation Corridor Agency,
                Toll Road
                Sr Lien Ser 1995 A..............................        6.00       01/01/34         15,011,100
              Long Beach,
     11,000     Harbor Ser 1989 A (AMT).........................        7.375      05/15/09         11,657,360
     10,000     Harbor Ser 1989 A (AMT).........................        7.25       05/15/19         10,557,700
     20,000     Harbor Ser 1995 (AMT) (MBIA)....................        5.25       05/15/25         18,607,600
     10,000   Los Angeles, Department of Airports Refg 1985 Ser
                A (FGIC)........................................        5.50       05/15/09         10,221,400
              Los Angeles County Transportation Commission,
     20,000     Sales Tax Ser 1991 B............................        6.50       07/01/13         21,191,600
      5,000     Sales Tax Ser 1986 A............................        6.25       07/01/16          5,002,200
      5,000   Orange County, Airport Refg Ser 1997 (MBIA)
                (WI)............................................        5.50       07/01/11          4,862,100
     20,000   San Diego County Regional Transportation
                Commission, Sales Tax
                1994 Ser A (FGIC)...............................        4.75       04/01/08         19,288,600
      5,000   San Francisco Airports Commission, San Francisco
                Int'l Airport Second Ser Refg Issue 4 (MBIA)....        6.00       05/01/20          5,154,800
              San Francisco Bay Area Rapid Transit District,
      5,000     Sales Tax Ser 1990 (AMBAC)......................        6.75       07/01/09          5,419,000
      5,000     Sales Tax Ser 1995 (FGIC).......................        5.50       07/01/15          4,948,550
      4,000     Sales Tax Ser 1995 (FGIC).......................        5.50       07/01/20          3,932,680
     10,000   Puerto Rico Highway & Transportation Authority,
                Refg Ser X......................................        5.25       07/01/21          9,224,100
                                                                                               ---------------
- -----------
                                                                                                   150,487,340
    150,000
                                                                                               ---------------
- -----------
              WATER & SEWER REVENUE (13.0%)
              California Department of Water Resources,
      4,000     Central Valley Ser F............................        6.00       12/01/11          4,041,880
      6,870     Central Valley Ser J-2..........................        6.125      12/01/13          7,150,708
      8,000   Castaic Lake Water Agency, Refg Ser 1994 A COPs
                (MBIA)..........................................        6.00       08/01/18          8,276,320
      6,000   Central Coast Water Authority, Refg Ser 1996 A
                (AMBAC).........................................        5.00       10/01/16          5,654,640
     10,000   Contra Costa Water District, Ser G (MBIA).........        5.50       10/01/19          9,795,800
              East Bay Municipal Utility District,
     11,000     Water Refg Ser 1992.............................        6.00       06/01/20         11,256,740
      3,000     Water Refg Ser 1996 (FGIC)......................        5.00       06/01/26          2,766,030
      4,000   Eastern Municipal Water District, Water & Sewer
                Ser 1991 COPs...................................        6.00       07/01/23          4,051,440
      5,745   Los Angeles, Wastewater Ser 1990..................        7.10       06/01/18          6,168,464
     15,000   Los Angeles County Sanitation Districts Financing
                Authority, 1993 Ser A...........................        5.375      10/01/13         14,650,800
              Metropolitan Water District of Southern
              California,
      5,500     Water Refg 1996 Ser B (MBIA)....................        5.00       07/01/14          5,276,975
      5,500     Water Refg 1996 Ser B (MBIA)....................        5.00       07/01/15          5,238,420
     10,000   San Diego, Sewer 1993 Ser A.......................        5.25       05/15/20          9,324,400
      8,000   San Diego County Water Authority, Ser 1991 B COPs
                (MBIA)..........................................        6.30       04/08/21          8,484,960
     10,000   San Diego Public Facilities Financing Authority,
                Sewer Ser 1995 (FGIC)...........................        5.00       05/15/25          9,204,700
              San Francisco Public Utilities Commission,
      5,750     Water 1992 Refg Ser A...........................        6.00       11/01/15          5,897,085
     10,870     Water 1996 Ser A................................        5.00       11/01/21         10,082,360
                                                                                               ---------------
- -----------
                                                                                                   127,321,722
    129,235
                                                                                               ---------------
- -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       45
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              OTHER REVENUE (0.5%)
$     5,000   Orange County Community Facilities District #86-2,
                Rancho Santa Margarita Ser A of 1990............        7.65%      08/15/17    $     5,188,200
                                                                                               ---------------
- -----------
              REFUNDED (15.1%)
      2,630   California Department of Water Resources, Central
                Valley Ser J-2..................................        6.125      06/01/01++        2,847,711
      5,000   California Health Facilities Financing Authority,
                St Joseph Health Ser 1991 A.....................        6.75       07/01/01++        5,557,200
      8,000   California Public Works Board, California State
                University 1992 Ser A...........................        6.70       10/01/02++        9,057,120
     10,000   Central Coast Water Authority, Ser 1992 (AMBAC)...        6.50       10/01/02++       11,246,900
              Los Angeles,
      6,000     Harbor Department Issue of 1985.................        8.70       09/01/99++        6,673,380
     10,000     Wastewater Ser 1990-B...........................        7.15       06/01/00++       11,116,500
              Los Angeles Convention & Exhibition Center
              Authority,
     10,000     Ser 1985 COPs...................................        9.00       12/01/05++       13,188,100
     14,000     Ser 1985 COPs...................................        9.00       12/01/05++       18,463,340
     10,000   Los Angeles County Transportation Commission,
                Sales Tax Ser 1987 A............................        6.75       07/01/02++       11,325,900
      5,000   Los Angeles Department of Water & Power, Water
                Works Issue of 1991 (Crossover 04/01/01)........        7.00       04/01/31          5,556,850
     10,000   Northern California Transmission Agency,
                California-Oregon 1990 Ser A (MBIA).............        7.00       05/01/00++       11,005,500
      5,250   Southern California Public Power Authority
                (ETM)...........................................        0.00       07/01/06          3,253,740
     11,000   University of California, Multiple Purpose Refg
                Ser A...........................................        6.875      09/01/02++       12,491,930
     10,000   Puerto Rico Aqueduct & Sewer Authority, Ser 1988
                A...............................................        7.875      07/01/98++       10,787,700
     13,000   Puerto Rico Highway Authority, Ser Q..............        7.75       07/01/00++       14,739,790
                                                                                               ---------------
- -----------
                                                                                                   147,311,661
    129,880
                                                                                               ---------------
- -----------
 
              TOTAL CALIFORNIA TAX-EXEMPT MUNICIPAL BONDS (IDENTIFIED COST $855,741,053)...
    881,590                                                                                        905,802,130
- -----------                                                                                    ---------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       46
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN                                                          COUPON       MATURITY
 THOUSANDS                                                           RATE          DATE             VALUE
- --------------------------------------------------------------------------------------------------------------
<C>           <S>                                                  <C>         <C>             <C>
              CALIFORNIA TAX-EXEMPT SHORT-TERM MUNICIPAL OBLIGATIONS (6.8%)
$    12,000   California Health Facilities Financing Authority,
                Sutter Health Ser 1990 B (Demand 01/02/97)......        5.10*%     03/01/26    $    12,000,000
              California Pollution Control Finance Authority,
      9,500     Pacific Gas & Electric Co Ser 1996 F (Demand
                01/02/97).......................................        4.80*      11/01/26          9,500,000
     12,000     Southern California Edison Co Ser 1996 A (Demand
                01/02/97).......................................        4.50*      02/28/08         12,000,000
     33,000   Newport Beach, Hoag Memorial Hospital Presbyterian
                Ser 1992
                (Demand 01/02/97)...............................        5.15*      10/01/22         33,000,000
                                                                                               ---------------
- -----------
 
              TOTAL CALIFORNIA TAX-EXEMPT SHORT-TERM MUNICIPAL OBLIGATIONS
              (IDENTIFIED COST $66,500,000)................................................
     66,500                                                                                         66,500,000
- -----------                                                                                    ---------------
 
$   948,090   TOTAL INVESTMENTS (IDENTIFIED COST $922,241,053) (A)...........         99.6%        972,302,130
- -----------
- -----------
 
              CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES.................          0.4           3,400,075
                                                                                     -----     ---------------
 
              NET ASSETS.....................................................        100.0%    $   975,702,205
                                                                                     -----     ---------------
                                                                                     -----     ---------------
<FN>
- ---------------------
   AMT      Alternative Minimum Tax.
   COPs     Certificates of Participation.
   ETM      Escrowed to Maturity.
    WI      Security purchased on a when issued basis.
    ++      Prerefunded to call date shown.
    *       Current coupon of variable rate security.
   (a)      The aggregate cost for federal income tax purposes approximates
            identified cost. The aggregate gross unrealized appreciation is
            $53,066,998 and the aggregate gross unrealized depreciation is
            $3,005,921, resulting in net unrealized appreciation of
            $50,061,077.
 
BOND INSURANCE:
  AMBAC     AMBAC Indemnity Corporation.
Connie Lee  Connie Lee Insurance Company.
   FGIC     Financial Guaranty Insurance Company.
   FSA      Financial Security Assurance Inc.
   MBIA     Municipal Bond Investors Assurance Corporation.
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       47
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
FINANCIAL STATEMENTS
 
STATEMENTS OF ASSETS AND LIABILITIES
DECEMBER 31, 1996
 
<TABLE>
<S>                                                           <C>
ASSETS:
Investments in securities, at value
  (identified cost $922,241,053)............................  $972,302,130
Cash........................................................       476,220
Receivable for:
    Interest................................................    14,580,573
    Shares of beneficial interest sold......................       295,986
    Investments sold........................................        40,765
Prepaid expenses and other assets...........................        23,545
                                                              ------------
 
     TOTAL ASSETS...........................................   987,719,219
                                                              ------------
 
LIABILITIES:
Payable for:
    Investments purchased...................................     6,884,447
    Dividends and distributions.............................     3,390,438
    Plan of distribution fee................................       642,082
    Shares of beneficial interest repurchased...............       520,860
    Investment management fee...............................       455,350
Accrued expenses and other payables.........................       123,837
                                                              ------------
 
     TOTAL LIABILITIES......................................    12,017,014
                                                              ------------
 
NET ASSETS:
Paid-in-capital.............................................   925,945,926
Net unrealized appreciation.................................    50,061,077
Accumulated net realized loss...............................      (304,798)
                                                              ------------
 
     NET ASSETS.............................................  $975,702,205
                                                              ------------
                                                              ------------
 
NET ASSET VALUE PER SHARE,
  77,591,489 SHARES OUTSTANDING (UNLIMITED SHARES AUTHORIZED
  OF $.01 PAR VALUE)........................................
                                                                    $12.57
                                                              ------------
                                                              ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       48
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 1996
 
<TABLE>
<S>                                                           <C>
NET INVESTMENT INCOME:
 
INTEREST INCOME.............................................  $ 59,806,976
                                                              ------------
 
EXPENSES
Plan of distribution fee....................................     7,504,744
Investment management fee...................................     5,313,150
Transfer agent fees and expenses............................       238,582
Custodian fees..............................................        73,674
Shareholder reports and notices.............................        59,142
Professional fees...........................................        52,081
Trustees' fees and expenses.................................        17,592
Registration fees...........................................         5,615
Other.......................................................        21,234
                                                              ------------
 
     TOTAL EXPENSES.........................................    13,285,814
 
     LESS: EXPENSE OFFSET...................................       (73,580)
                                                              ------------
 
     NET EXPENSES...........................................    13,212,234
                                                              ------------
 
     NET INVESTMENT INCOME..................................    46,594,742
                                                              ------------
 
NET REALIZED AND UNREALIZED GAIN (LOSS):
Net realized gain...........................................     3,510,899
Net change in unrealized appreciation.......................   (20,341,641)
                                                              ------------
 
     NET LOSS...............................................   (16,830,742)
                                                              ------------
 
NET INCREASE................................................  $ 29,764,000
                                                              ------------
                                                              ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       49
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                                FOR THE YEAR        FOR THE YEAR
                                                                    ENDED               ENDED
                                                              DECEMBER 31, 1996   DECEMBER 31, 1995
- ---------------------------------------------------------------------------------------------------
<S>                                                           <C>                 <C>
 
INCREASE (DECREASE) IN NET ASSETS:
 
OPERATIONS:
Net investment income.......................................   $     46,594,742    $     51,093,034
Net realized gain...........................................          3,510,899          15,612,579
Net change in unrealized appreciation/depreciation..........        (20,341,641)         78,220,453
                                                              -----------------   -----------------
 
     NET INCREASE...........................................         29,764,000         144,926,066
                                                              -----------------   -----------------
 
DIVIDENDS AND DISTRIBUTIONS FROM:
Net investment income.......................................        (46,863,352)        (50,973,219)
Net realized gain...........................................        (11,233,171)         (6,253,247)
                                                              -----------------   -----------------
 
     TOTAL..................................................        (58,096,523)        (57,226,466)
                                                              -----------------   -----------------
Net decrease from transactions in shares of beneficial
  interest..................................................        (50,846,165)        (40,657,242)
                                                              -----------------   -----------------
 
     NET INCREASE (DECREASE)................................        (79,178,688)         47,042,358
 
NET ASSETS:
Beginning of period.........................................      1,054,880,893       1,007,838,535
                                                              -----------------   -----------------
 
     END OF PERIOD
    (INCLUDING UNDISTRIBUTED NET INVESTMENT INCOME OF $0 AND
    $268,610, RESPECTIVELY).................................   $    975,702,205    $  1,054,880,893
                                                              -----------------   -----------------
                                                              -----------------   -----------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       50
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1996
 
1. ORGANIZATION AND ACCOUNTING POLICIES
 
Dean Witter California Tax-Free Income Fund (the "Fund") 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 current income which is exempt from federal and
California income tax, consistent with the preservation of capital. The Fund was
organized as a Massachusetts business trust on April 9, 1984 and commenced
operations on July 11, 1984.
 
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 for the Fund by
an outside independent pricing service approved by the Trustees. The pricing
service has informed the Fund that in valuing the Fund's portfolio securities,
it uses both a computerized matrix of tax-exempt securities and evaluations by
its staff, in each case based on information concerning market transactions and
quotations from dealers which reflect the bid side of the market each day. The
Fund's portfolio securities are thus valued by reference to a combination of
transactions and quotations for the same or other securities believed to be
comparable in quality, coupon, maturity, type of issue, call provisions, trading
characteristics and other features deemed to be relevant. Short-term debt
securities having a maturity date of more than sixty days at time of purchase
are valued on a mark-to-market basis until sixty days prior to maturity and
thereafter at amortized cost based on their value on the 61st day. Short-term
debt securities having a maturity date of sixty days or less at the time of
purchase are valued at amortized cost.
 
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.
 
                                       51
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1996, CONTINUED
 
D. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends and
distributions to its shareholders on the record date. The amount of dividends
and distributions from net investment income and net realized capital gains are
determined in accordance with federal income tax regulations which may differ
from generally accepted accounting principles. These "book/tax" differences are
either considered temporary or permanent in nature. To the extent these
differences are permanent in nature, such amounts are reclassified within the
capital accounts based on their federal tax-basis treatment; temporary
differences do not require reclassification. Dividends and distributions which
exceed net investment income and net realized capital gains for financial
reporting purposes but not for tax purposes are reported as dividends in excess
of net investment income or distributions in excess of net realized capital
gains. To the extent they exceed net investment income and net realized capital
gains for tax purposes, they are reported as distributions of paid-in-capital.
 
2. INVESTMENT MANAGEMENT AGREEMENT
 
Pursuant to an Investment Management Agreement with Dean Witter InterCapital
Inc. (the "Investment Manager"), the Fund pays the Investment Manager a
management fee, accrued daily and payable monthly, by applying the following
annual rates to the Fund's net assets determined as of the close of each
business day: 0.55% to the portion of average daily net assets not exceeding
$500 million; 0.525% to the portion of average daily net assets exceeding $500
million but not exceeding $750 million; 0.50% to the portion of average daily
net assets exceeding $750 million but not exceeding $1 billion; and 0.475% to
the portion of average daily net assets exceeding $1 billion. Effective May 1,
1996, the annual rate was reduced to 0.45% to the portion of average daily net
assets in excess of $1.25 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
 
Shares of the Fund are distributed by Dean Witter Distributors Inc. (the
"Distributor"), an affiliate of the Investment Manager. The Fund has adopted a
Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act pursuant
to which the Fund pays the Distributor compensation, accrued
 
                                       52
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1996, CONTINUED
 
daily and payable monthly, at an annual rate of 0.75% of the lesser of: (a) the
average daily aggregate gross sales of the Fund's shares since the Fund's
inception (not including reinvestment of dividend or capital gain distributions)
less the average daily aggregate net asset value of the Fund's shares redeemed
since the Fund's inception upon which a contingent deferred sales charge has
been imposed or upon which such charge has been waived; or (b) the Fund's
average daily net assets. Amounts paid under the Plan are paid to the
Distributor to compensate it for the services provided and the expenses borne by
it and others in the distribution of the Fund's shares, including the payment of
commissions for sales of the Fund's shares and incentive compensation to, and
expenses of, account executives of Dean Witter Reynolds Inc., an affiliate of
the Investment Manager and Distributor, and other employees and selected
broker-dealers, who engage in or support distribution of the Fund's shares or
who service shareholder accounts, including overhead and telephone expenses,
printing and distribution of prospectuses and reports used in connection with
the offering of the Fund's shares to other than current shareholders and
preparation, printing and distribution of sales literature and advertising
materials. In addition, the Distributor may be compensated under the Plan for
its opportunity costs in advancing such amounts, which compensation would be in
the form of a carrying charge on any unreimbursed expenses by the Distributor.
 
Provided that the Plan continues in effect, any cumulative expenses incurred but
not yet recovered may be recovered through future distribution fees from the
Fund and contingent deferred sales charges from the Fund's shareholders.
 
Although there is no legal obligation for the Fund to pay expenses incurred in
excess of payments made to the Distributor under the Plan and the proceeds of
contingent deferred sales charges paid by investors upon redemption of shares,
if for any reason the Plan is terminated, the Trustees will consider at that
time the manner in which to treat such expenses. The Distributor has advised the
Fund that such excess amounts, including carrying charges, totaled $3,649,503 at
December 31, 1996.
 
The Distributor has informed the Fund that for the year ended December 31, 1996,
it received approximately $1,325,000 in contingent deferred sales charges from
certain redemptions of the Fund's shares.
 
4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES
 
The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the year ended December 31, 1996 aggregated
$105,636,105 and $197,934,653, respectively.
 
                                       53
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1996, CONTINUED
 
Dean Witter Trust Company, an affiliate of the Investment Manager and
Distributor, is the Fund's transfer agent. At December 31, 1996, the Fund had
transfer agent fees and expenses payable of approximately $23,000.
 
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, 1996
included in Trustees' fees and expenses in the Statement of Operations amounted
to $933. At December 31, 1996, the Fund had an accrued pension liability of
$48,878 which is included in accrued expenses in the Statement of Assets and
Liabilities.
 
5. SHARES OF BENEFICIAL INTEREST
 
Transactions in shares of beneficial interest were as follows:
 
<TABLE>
<CAPTION>
                                                                           FOR THE YEAR                  FOR THE YEAR
                                                                              ENDED                         ENDED
                                                                        DECEMBER 31, 1996             DECEMBER 31, 1995
                                                                   ----------------------------   --------------------------
                                                                     SHARES          AMOUNT         SHARES         AMOUNT
                                                                   -----------   --------------   -----------   ------------
 
<S>                                                                <C>           <C>              <C>           <C>
Sold.............................................................    6,335,468   $   79,395,308     7,610,885   $ 95,058,902
Reinvestment of dividends and distributions......................    2,574,842       32,170,169     2,505,960     31,541,595
                                                                   -----------   --------------   -----------   ------------
                                                                     8,910,310      111,565,477    10,116,845    126,600,497
Repurchased......................................................  (12,976,452)    (162,411,642)  (13,380,382)  (167,257,739)
                                                                   -----------   --------------   -----------   ------------
Net decrease.....................................................   (4,066,142)  $  (50,846,165)   (3,263,537)  $(40,657,242)
                                                                   -----------   --------------   -----------   ------------
                                                                   -----------   --------------   -----------   ------------
</TABLE>
 
6. FEDERAL INCOME TAX STATUS
 
Capital losses incurred after October 31 ("post-October" losses) within the
taxable year are deemed to arise on the first business day of the Fund's next
taxable year. The Fund incurred and will elect to defer net capital losses of
approximately $305,000 during fiscal 1996.
 
As of December 31, 1996, the Fund had temporary book/tax differences primarily
attributable to post-October losses.
 
                                       54
<PAGE>
DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
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
                  ----------------------------------------------------------------------------------------------------------------
                     1996       1995       1994        1993       1992       1991        1990       1989       1988        1987
- ----------------------------------------------------------------------------------------------------------------------------------
 
<S>               <C>         <C>        <C>        <C>         <C>        <C>        <C>         <C>        <C>        <C>
PER SHARE OPERATING
PERFORMANCE:
 
Net asset value,
 beginning of
 period.......... $    12.92  $  11.87   $  13.31   $   12.70   $  12.46   $  11.99   $   12.05   $  11.68   $  11.19   $   12.25
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
Net investment
 income..........       0.58      0.61       0.64        0.67       0.69       0.71        0.72       0.71       0.72        0.72
 
Net realized and
 unrealized gain
 (loss)..........      (0.21)     1.13      (1.42)       0.70       0.26       0.48       (0.06)      0.37       0.50       (1.06)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
Total from
 investment
 operations......       0.37      1.74      (0.78)       1.37       0.95       1.19        0.66       1.08       1.22       (0.34)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
Less dividends
 and
 distributions
 from:
   Net investment
   income........      (0.58)    (0.61)     (0.64)      (0.67)     (0.69)     (0.71)      (0.72)     (0.71)     (0.72)      (0.72)
   Net realized
   gain..........      (0.14)    (0.08)     (0.02)      (0.09)     (0.02)     (0.01)     --          --         (0.01)     --
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
Total dividends
 and
 distributions...      (0.72)    (0.69)     (0.66)      (0.76)     (0.71)     (0.72)      (0.72)     (0.71)     (0.73)      (0.72)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
Net asset value,
 end of period... $    12.57  $  12.92   $  11.87   $   13.31   $  12.70   $  12.46   $   11.99   $  12.05   $  11.68   $   11.19
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ----------
 
TOTAL INVESTMENT
RETURN+..........       3.13%    14.96%     (5.97)%     10.97%      7.83%     10.18%       5.69%      9.54%     11.23%      (2.70)%
 
RATIOS TO AVERAGE
NET ASSETS:
Expenses.........       1.32%(1)     1.33%     1.32%      1.27%     1.32%      1.28%       1.30%      1.32%      1.34%       1.35%
 
Net investment
 income..........       4.66%     4.90%      5.10%       5.03%      5.45%      5.78%       5.98%      6.00%      6.31%       6.27%
 
SUPPLEMENTAL DATA:
Net assets, end
 of period, in
 millions........       $976  $  1,055   $  1,008   $   1,190   $    987   $    834   $     677   $    567   $    430   $     365
 
Portfolio
 turnover rate...         11%       23%        12%         10%         6%         3%         16%        13%        13%         23%
<FN>
 
- ---------------------
 +   Does not reflect the deduction of sales charge. Calculated based on the net
     asset value as of the last business day of the period.
(1)  The above ratio does not reflect the effect of expense offsets of 0.01%.
</TABLE>
    
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       55
<PAGE>
APPENDIX
- --------------------------------------------------------------------------------
 
RATINGS OF INVESTMENTS
MOODY'S INVESTORS SERVICE INC. ("MOODY'S")
                             MUNICIPAL BOND RATINGS
 
Aaa   Bonds which are rated Aaa are judged to be of the best quality. They carry
      the smallest degree of investment risk and are generally referred to as
      "gilt edge." Interest payments are protected by a large or by an
      exceptionally stable margin and principal is secure. While the various
      protective elements are likely to change, such changes as can be
      visualized are most unlikely to impair the fundamentally strong position
      of such issues.
 
Aa    Bonds which are rated Aa are judged to be of high quality by all
      standards. Together with the Aaa group they comprise what are generally
      known as high grade bonds. They are rated lower than the best bonds
      because margins of protection may not be as large as in Aaa securities or
      fluctuation of protective elements may be of greater amplitude or there
      may be other elements present which make the long-term risks appear
      somewhat larger than in Aaa securities.
 
A     Bonds which are rated A possess many favorable investment attributes and
      are to be considered as upper medium grade obligations. Factors giving
      security to principal and interest are considered adequate, but elements
      may be present which suggest a susceptibility to impairment sometime in
      the future.
 
Baa   Bonds which are rated Baa are considered as medium grade obligations;
      i.e., they are neither highly protected nor poorly secured. Interest
      payments and principal security appear adequate for the present but
      certain protective elements may be lacking or may be characteristically
      unreliable over any great length of time. Such bonds lack outstanding
      investment characteristics and in fact have speculative characteristics as
      well.
 
      Bonds rated Aaa, Aa, A and Baa are considered investment grade bonds.
 
Ba    Bonds which are rated Ba are judged to have speculative elements; their
      future cannot be considered as well assured. Often the protection of
      interest and principal payments may be very moderate, and therefore not
      well safeguarded during both good and bad times over the future.
      Uncertainty of position characterizes bonds in this class.
 
B     Bonds which are rated B generally lack characteristics of the desirable
      investment. Assurance of interest and principal payments or of maintenance
      of other terms of the contract over any long period of time may be small.
 
Caa   Bonds which are rated Caa are of poor standing. Such issues may be in
      default or there may be present elements of danger with respect to
      principal or interest.
 
Ca    Bonds which are rated Ca present obligations which are speculative in a
      high degree. Such issues are often in default or have other marked
      shortcomings.
 
C     Bonds which are rated C are the lowest rated class of bonds, and issues so
      rated can be regarded as having extremely poor prospects of ever attaining
      any real investment standing.
 
    CONDITIONAL RATING:  Bonds for which the security depends upon the
completion of some act or the fulfillment of some condition are rated
conditionally. These are bonds secured by (a) earnings of projects under
construction, (b) earnings of projects unseasoned in operation experience, (c)
rentals which begin when facilities are completed, or (d) payments to which some
other limiting condition attaches. Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.
 
    RATING REFINEMENTS:  Moody's may apply numerical modifiers, 1, 2 and 3 in
each generic rating classification from Aa through B in its municipal bond
rating system. The modifier 1 indicates a mid-range ranking; and a modifier 3
indicates that the issue ranks in the lower end of its generic rating category.
 
                                       56
<PAGE>
                             MUNICIPAL NOTE RATINGS
 
    Moody's ratings for state and municipal notes and other short-term loans are
designated Moody's Investment Grade (MIG). MIG 1 denotes best quality and means
there is present strong protection from established cash flows, superior
liquidity support or demonstrated broad-based access to the market for
refinancing. MIG 2 denotes high quality and means that margins of protection are
ample although not as large as in MIG 1. MIG 3 denotes favorable quality and
means that all security elements are accounted for but that the undeniable
strength of the previous grades, MIG 1 and MIG 2, is lacking. MIG 4 denotes
adequate quality and means that the protection commonly regarded as required of
an investment security is present and that while the notes are not distinctly or
predominantly speculative, there is specific risk.
 
                        VARIABLE RATE DEMAND OBLIGATIONS
 
    A short-term rating, in addition to the Bond or MIG ratings, designated VMIG
may also be assigned to an issue having a demand feature. The assignment of the
VMIG symbol reflects such characteristics as payment upon periodic demand rather
than fixed maturity dates and payment relying on external liquidity. The VMIG
rating criteria are identical to the MIG criteria discussed above.
 
                            COMMERCIAL PAPER RATINGS
 
    Moody's Commercial Paper ratings are opinions of the ability to repay
punctually promissory obligations not having an original maturity in excess of
nine months. These ratings apply to Municipal Commercial Paper as well as
taxable Commercial Paper. Moody's employs the following three designations, all
judged to be investment grade, to indicate the relative repayment capacity of
rated issuers: Prime-1, Prime-2, Prime-3.
 
    Issuers rated Prime-1 have a superior capacity for repayment of short-term
promissory obligations. Issuers rated Prime-2 have a strong capacity for
repayment of short-term promissory obligations; and Issuers rated Prime-3 have
an acceptable capacity for repayment of short-term promissory obligations.
lssuers rated Not Prime do not fall within any of the Prime rating categories.
 
STANDARD & POOR'S CORPORATION ("STANDARD & POOR'S")
 
                             MUNICIPAL BOND RATINGS
 
    A Standard & Poor's municipal bond rating is a current assessment of the
creditworthiness of an obligor with respect to a specific obligation. This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.
 
    The ratings are based on current information furnished by the issuer or
obtained by Standard & Poor's from other sources it considers reliable. The
ratings are based, in varying degrees, on the following considerations: (1)
likelihood of default-capacity and willingness of the obligor as to the timely
payment of interest and repayment of principal in accordance with the terms of
the obligation; (2) nature of and provisions of the obligation; and (3)
protection afforded by, and relative position of, the obligation in the event of
bankruptcy, reorganization or other arrangement under the laws of bankruptcy and
other laws affecting creditors' rights.
 
    Standard & Poor's does not perform an audit in connection with any rating
and may, on occasion, rely on unaudited financial information. The ratings may
be changed, suspended or withdrawn as a result of changes in, or unavailability
of, such information, or for other reasons.
 
   
AAA   Debt rated "AAA" has the highest rating assigned by Standard & Poor's.
      Capacity to pay interest and repay principal is extremely strong.
    
 
AA    Debt rated "AA" has a very strong capacity to pay interest and repay
      principal and differs from the highest-rated issues only in small degree.
 
                                       57
<PAGE>
A     Debt rated "A" has a strong capacity to pay interest and repay principal
      although they are somewhat more susceptible to the adverse effects of
      changes in circumstances and economic conditions than debt in higher-rated
      categories.
 
BBB   Debt rated "BBB" is regarded as having an adequate capacity to pay
      interest and repay principal. Whereas it normally exhibits adequate
      protection parameters, adverse economic conditions or changing
      circumstances are more likely to lead to a weakened capacity to pay
      interest and repay principal for debt in this category than for debt in
      higher-rated categories.
 
      Bonds rated AAA, AA, A and BBB are considered investment grade bonds.
 
BB    Debt rated "BB" has less near-term vulnerability to default than other
      speculative grade debt. However, it faces major ongoing uncertainties or
      exposure to adverse business, financial or economic conditions which could
      lead to inadequate capacity to meet timely interest and principal payment.
 
B     Debt rated "B" has a greater vulnerability to default but presently has
      the capacity to meet interest payments and principal repayments. Adverse
      business, financial or economic conditions would likely impair capacity or
      willingness to pay interest and repay principal.
 
CCC   Debt rated "CCC" has a current identifiable vulnerability to default, and
      is dependent upon favorable business, financial and economic conditions to
      meet timely payments of interest and repayments of principal. In the event
      of adverse business, financial or economic conditions, it is not likely to
      have the capacity to pay interest and repay principal.
 
CC    The rating "CC" is typically applied to debt subordinated to senior debt
      which is assigned an actual or implied "CCC" rating.
 
C     The rating "C" is typically applied to debt subordinated to senior debt
      which is assigned an actual or implied "CCC" debt rating.
 
CI    The rating "CI" is reserved for income bonds on which no interest is being
      paid.
 
D     Debt rated "D" is in payment default. The 'D' rating category is used when
      interest payments or principal payments are not made on the date due even
      if the applicable grace period has not expired, unless S&P believes that
      such payments will be made during such grace period. The "D" rating also
      will be used upon the filing of a bankruptcy petition if debt service
      payments are jeopardized.
 
NR    Indicates that no rating has been requested, that there is insufficient
      information on which to base a rating or that Standard & Poor's does not
      rate a particular type of obligation as a matter of policy.
 
      Bonds rated "BB", "B", "CCC", "CC" and "C" are regarded as having
      predominantly speculative characteristics with respect to capacity to pay
      interest and repay principal. "BB" indicates the least degree of
      speculation and "C" the highest degree of speculation. While such debt
      will likely have some quality and protective characteristics, these are
      outweighed by large uncertainties or major risk exposures to adverse
      conditions.
 
      PLUS (+) OR MINUS (-): The ratings from "AA" to "CCC" may be modified by
      the addition of a plus or minus sign to show relative standing within the
      major ratings categories.
 
      The foregoing ratings are sometimes followed by a "p" which indicates that
      the rating is provisional. A provisional rating assumes the successful
      completion of the project being financed by the bonds being rated and
      indicates that payment of debt service requirements is largely or entirely
      dependent upon the successful and timely completion of the project. This
      rating, however, while addressing credit quality subsequent to completion
      of the project, makes no comment on the likelihood or risk of default upon
      failure of such completion.
 
                                       58
<PAGE>
                             MUNICIPAL NOTE RATINGS
 
    Commencing on July 27, 1984, Standard & Poor's instituted a new rating
category with respect to certain municipal note issues with a maturity of less
than three years. The new note ratings denote the following:
 
    SP-1  denotes a very strong or strong capacity to pay principal and
          interest. Issues determined to possess overwhelming safety
          characteristics are given a plus (+) designation (SP-1+).
 
    SP-2  denotes a satisfactory capacity to pay principal and interest.
 
    SP-3  denotes a speculative capacity to pay principal and interest.
 
                            COMMERCIAL PAPER RATINGS
 
    Standard and Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days. The commercial paper rating is not a recommendation to purchase or
sell a security. The ratings are based upon current information furnished by the
issuer or obtained by S&P from other sources it considers reliable. The ratings
may be changed, suspended, or withdrawn as a result of changes in or
unavailability of such information. Ratings are graded into group categories,
ranging from "A" for the highest quality obligations to "D" for the lowest.
Ratings are applicable to both taxable and tax-exempt commercial paper. The
categories are as follows:
 
    Issues assigned A ratings are regarded as having the greatest capacity for
timely payment. Issues in this category are further refined with the designation
1, 2 and 3 to indicate the relative degree of safety.
 
A-1 indicates that the degree of safety regarding timely payment is very strong.
 
A-2 indicates capacity for timely payment on issues with this designation is
strong. However, the relative degree of safety is not as overwhelming as for
issues designated "A-1".
 
A-3 indicates a satisfactory capacity for timely payment. Obligations carrying
this designation are, however, somewhat more vulnerable to the adverse effects
of changes in circumstances than obligations carrying the higher designations.
 
                                       59
<PAGE>

                  DEAN WITTER CALIFORNIA TAX-FREE INCOME TRUST
                            PART C OTHER INFORMATION

Item 24.  Financial Statements and Exhibits

 (a)   Financial Statements

  (1)  Financial statements and schedules, included
       in Prospectus (Part A):                                         Page in
                                                                      Prospectus
                                                                      ----------

       Financial highlights for for the fiscal years ended
       December 31, 1987, 1988, 1989, 1990, 1991, 1992
       1993, 1994, 1995 and 1996..........................                 4

   (2) Financial statements included in the Statement of
       Additional Information (Part B):                                Page in
                                                                         SAI
                                                                       -------

       Portfolio of Investments at December 31, 1996.............         42

       Statement of assets and liabilities at December 31, 1996..         48

       Statement of operations for the year ended
       December 31, 1996.........................................         49

       Statement of changes in net assets for the year ended
       ended December 31, 1995 and 1996..........................         50

       Notes to Financial Statements.............................         51

       Financial highlights for for the fiscal years ended
       December 31, 1987, 1988, 1989, 1990, 1991, 1992,
       1993, 1994, 1995 and 1996.................................         55

   (3) Financial statements included in Part C:

       None

 (b)   Exhibits:
 2.  --     By-Laws of the Registrant, Amended and Restated
            as of October 25, 1996

 8.  --   Form of Amendment to the Custody Agreement between
          the Registrant and The Bank of New York.

11.   --    Consent of Independent Accountants

16.   --    Schedule for Computation of Performance Quotations

27.  --   Financial Data Schedule

- ----------
     All other exhibits previously filed and incorporated by reference.


<PAGE>

Item 25.  Persons Controlled by or Under Common Control With
          Registrant.

          None

Item 26.  Number of Holders of Securities.

      (1)                                             (2)
                                     Number of Record Holders
     Title of Class                     at January 31, 1997
     --------------                  ----------------------

Shares of Beneficial Interest               17,089

Item 27.  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 8 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


<PAGE>

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 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 28. Business and Other Connections of Investment Adviser.

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

      The term "Dean Witter Funds" used below refers to the following registered
investment companies:

Closed-End Investment Companies
- -------------------------------
 (1) InterCapital Income Securities Inc.
 (2) High Income Advantage Trust
 (3) High Income Advantage Trust II
 (4) High Income Advantage Trust III
 (5) Municipal Income Trust
 (6) Municipal Income Trust II
 (7) Municipal Income Trust III
 (8) Dean Witter Government Income Trust
 (9) Municipal Premium Income Trust


                                       3
<PAGE>

(10) Municipal Income Opportunities Trust
(11) Municipal Income Opportunities Trust II 
(12) Municipal Income Opportunities Trust III 
(13) Prime Income Trust
(14) InterCapital Insured Municipal Bond Trust 
(15) InterCapital Quality Municipal Income Trust 
(16) InterCapital Quality Municipal Investment Trust 
(17) InterCapital Insured Municipal Income Trust
(18) InterCapital California Insured Municipal Income Trust 
(19) InterCapital Insured Municipal Trust 
(20) InterCapital Quality Municipal Securities 
(21) InterCapital New York Quality Municipal Securities 
(22) InterCapital California Quality Municipal Securities 
(23) InterCapital Insured California Municipal Securities 
(24) InterCapital Insured Municipal Securities

Open-end Investment Companies:
- ------------------------------
 (1) Dean Witter Short-Term Bond Fund
 (2) Dean Witter Tax-Exempt Securities Trust
 (3) Dean Witter Tax-Free Daily Income Trust
 (4) Dean Witter Dividend Growth Securities Inc.
 (5) Dean Witter Convertible Securities Trust
 (6) Dean Witter Liquid Asset Fund Inc.
 (7) Dean Witter Developing Growth Securities Trust
 (8) Dean Witter Retirement Series
 (9) Dean Witter Federal Securities Trust
(10) Dean Witter World Wide Investment Trust 
(11) Dean Witter U.S. Government Securities Trust 
(12) Dean Witter Select Municipal Reinvestment Fund 
(13) Dean Witter High Yield Securities Inc. 
(14) Dean Witter Intermediate Income Securities 
(15) Dean Witter New York Tax-Free Income Fund 
(16) Dean Witter California Tax-Free Income Fund 
(17) Dean Witter Health Sciences Trust 
(18) Dean Witter California Tax-Free Daily Income Trust 
(19) Dean Witter Global Asset Allocation Fund 
(20) Dean Witter American Value Fund 
(21) Dean Witter Strategist Fund 
(22) Dean Witter Utilities Fund 
(23) Dean Witter World Wide Income Trust
(24) Dean Witter New York Municipal Money Market Trust 
(25) Dean Witter Capital Growth Securities 
(26) Dean Witter Precious Metals and Minerals Trust 
(27) Dean Witter European Growth Fund Inc. 
(28) Dean Witter Global Short-Term Income Fund Inc. 
(29) Dean Witter Pacific Growth Fund Inc. 
(30) Dean Witter Multi-State Municipal Series Trust 
(31) Dean Witter Premier Income Trust 
(32) Dean Witter Short-Term U.S. Treasury Trust 
(33) Dean Witter Diversified Income Trust 
(34) Dean Witter U.S. Government Money Market Trust 
(35) Dean Witter Global Dividend Growth Securities 
(36) Active Assets California Tax-Free Trust 
(37) Dean Witter Natural Resource Development Securities Inc.


                                       4
<PAGE>

(38) Active Assets Government Securities Trust 
(39) Active Assets Money Trust
(40) Active Assets Tax-Free Trust 
(41) Dean Witter Limited Term Municipal Trust
(42) Dean Witter Variable Investment Series 
(43) Dean Witter Value-Added Market Series 
(44) Dean Witter Global Utilities Fund 
(45) Dean Witter High Income Securities 
(46) Dean Witter National Municipal Trust 
(47) Dean Witter International SmallCap Fund 
(48) Dean Witter Mid-Cap Growth Fund 
(49) Dean Witter Select Dimensions Investment Series 
(50) Dean Witter Balanced Growth Fund
(51) Dean Witter Balanced Income Fund 
(52) Dean Witter Hawaii Municipal Trust
(53) Dean Witter Capital Appreciation Fund 
(54) Dean Witter Intermediate Term U.S. Treasury Trust 
(55) Dean Witter Information Fund 
(56) Dean Witter Japan Fund 
(57) Dean Witter Income Builder Fund 
(58) Dean Witter Special Value Fund
(59) Dean Witter Financial Services Trust
(60) Dean Witter Market Leader Trust

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

Open-End Investment Companies
- -----------------------------
 (1) TCW/DW Core Equity Trust
 (2) TCW/DW North American Government Income Trust 
 (3) TCW/DW Latin American Growth Fund 
 (4) TCW/DW Income and Growth Fund
 (5) TCW/DW Small Cap Growth Fund
 (6) TCW/DW Balanced Fund
 (7) TCW/DW Total Return Trust
 (8) TCW/DW Mid-Cap Equity Trust
 (9) TCW/DW Global Telecom Trust
(10) TCW/DW Strategic Income Trust

Closed-End Investment Companies
- -------------------------------
 (1) TCW/DW Term Trust 2000
 (2) TCW/DW Term Trust 2002
 (3) TCW/DW Term Trust 2003
 (4) TCW/DW Emerging Markets Opportunities Trust


                                       5
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Charles A. Fiumefreddo        Executive Vice President and Director of Dean
Chairman, Chief               Witter Reynolds Inc. ("DWR"); Chairman, Chief
Executive Officer and         Executive Officer and Director of Dean Witter
Director                      Distributors Inc. ("Distributors") and Dean
                              Witter Services Company Inc. ("DWSC"); Chairman
                              and Director of Dean Witter Trust Company
                              ("DWTC"); Chairman, Director or Trustee, President
                              and Chief Executive Officer of the Dean Witter
                              Funds and Chairman, Chief Executive Officer and
                              Trustee of the TCW/DW Funds; Formerly Executive
                              Vice President and Director of Dean Witter,
                              Discover & Co. ("DWDC"); Director and/or officer
                              of various DWDC subsidiaries.

Philip J. Purcell             Chairman, Chief Executive Officer and Director of
Director                      of DWDC and DWR; Director of DWSC and
                              Distributors; Director or Trustee of the Dean
                              Witter Funds; Director and/or officer of various
                              DWDC subsidiaries.

Richard M. DeMartini          Executive Vice President of DWDC; President and
Director                      Chief Operating Officer of Dean Witter Capital;
                              Director of DWR, DWSC, Distributors and DWTC;
                              Trustee of the TCW/DW Funds; Member (since
                              January, 1993) and Chairman (since January,
                              1995) of the Board of Directors of NASDAQ.

James F. Higgins              Executive Vice President of DWDC; President and
Director                      Chief Operating Officer of Dean Witter Financial;
                              Director of DWR, DWSC, Distributors and DWTC.

Thomas C. Schneider           Executive Vice President and Chief Financial
Executive Vice                Officer of DWDC, DWR, DWSC and Distributors;
President, Chief              Director of DWR, DWSC and Distributors.
Financial Officer and
Director

Christine A. Edwards          Executive Vice President, Secretary and General
Director                      Counsel of DWDC and DWR; Executive Vice President,
                              Secretary and Chief Legal Officer of Distributors;
                              Director of DWR, DWSC and Distributors.


                                       6
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Robert M. Scanlan             President and Chief Operating Officer of DWSC,
President and Chief           Executive Vice President of Distributors;
Operating Officer             Executive Vice President and Director of DWTC;
                              Vice President of the Dean Witter Funds and the
                              TCW/DW Funds.

John Van Heuvelen             President, Chief Operating Officer and Director
Executive Vice                of DWTC.
President

Joseph J. McAlinden
Executive Vice President
and Chief Investment          Vice President of the Dean Witter Funds and
Officer                       Director of DWTC.

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

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

Richard Felegy
Senior Vice President

Edward Gaylor
Senior Vice President         Vice President of various Dean Witter Funds.

Robert S. Giambrone
Senior                        Vice President Senior Vice President of DWSC,
                              Distributors and DWTC and Director of DWTC; Vice
                              President of the Dean Witter Funds and the TCW/DW
                              Funds.
                 
Rajesh K. Gupta
Senior Vice President         Vice President of various Dean Witter Funds.

Kenton J. Hinchcliffe
Senior Vice President         Vice President of various Dean Witter Funds.

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

Jenny B. Jones
Senior Vice President         Vice President of Dean Witter Special Value Fund.


John B. Kemp, III             Director of the Provident Savings Bank, Jersey
Senior Vice President         City, New Jersey.

Anita Kolleeny
Senior Vice President         Vice President of various Dean Witter Funds.


                                       7
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Jonathan R. Page
Senior Vice President         Vice President of various Dean Witter Funds.

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

Guy G. Rutherfurd
Senior Vice President         Vice President of Dean Witter Market Leader Trust

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

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

Elizabeth A. Vetell
Senior Vice President

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

Ronald J. Worobel
Senior Vice President         Vice President of various Dean Witter Funds.

Thomas F. Caloia              First Vice President and Assistant Treasurer of
First Vice President          DWSC, Assistant Treasurer of Distributors;
and Assistant                 Treasurer and Chief Financial Officer of the
Treasurer                     Dean Witter Funds and the TCW/DW Funds.

Marilyn K. Cranney            Assistant Secretary of DWR; First Vice President
First Vice President          and Assistant Secretary of DWSC; Assistant
and Assistant Secretary       Secretary of the Dean Witter Funds and the TCW/DW
                              Funds.

Barry Fink                    Assistant Secretary of DWR; First Vice President,
First Vice President,         Secretary and General Counsel of DWSC; First Vice
Secretary and General         President, Assistant Secretary and Assistant
Counsel                       General Counsel of Distributors; Vice President,
                              Secretary and General Counsel of the Dean Witter
                              Funds and the TCW/DW Funds.

Michael Interrante            First Vice President and Controller of DWSC;
First Vice President          Assistant Treasurer of Distributors;First Vice
and Controller                President and Treasurer of DWTC.

Robert Zimmerman
First Vice President

Joan Allman
Vice President


                                       8
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Joseph Arcieri
Vice President                Vice President of various Dean Witter Funds.

Kirk Balzer
Vice President                Vice President of various Dean Witter Funds.

Douglas Brown
Vice President

Philip Casparius
Vice President

Thomas Chronert
Vice President

Rosalie Clough
Vice President

Patricia A. Cuddy
Vice President                Vice President of various Dean Witter Funds.

B. Catherine Connelly
Vice President

Salvatore DeSteno
Vice President                Vice President of DWSC.

Frank J. DeVito
Vice President                Vice President of DWSC.

Bruce Dunn
Vice President

Jeffrey D. Geffen
Vice President

Deborah Genovese
Vice President

Peter W. Gurman
Vice President

John Hechtlinger
Vice President

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


                                       9
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Elizabeth Hinchman
Vice President

David Hoffman
Vice President

David Johnson
Vice President

Christopher Jones
Vice President

James Kastberg
Vice President

Stanley Kapica
Vice President

Michael Knox
Vice President                Vice President of various Dean Witter Funds.

Konrad J. Krill
Vice President                Vice President of various Dean Witter Funds.

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

Thomas Lawlor
Vice President

Gerard Lian
Vice President                Vice President of various Dean Witter Funds.

LouAnne D. McInnis            Vice President and Assistant Secretary of DWSC;
Vice President and            Assistant Secretary of the Dean Witter Funds and
Assistant Secretary           the TCW/DW Funds.

Sharon K. Milligan
Vice President

Julie Morrone
Vice President

David Myers
Vice President

James Nash
Vice President


                                       10
<PAGE>

Name and Position             Other Substantial Business, Profession, Vocation
with Dean Witter              or Employment, including Name, Principal Address
InterCapital Inc.             and Nature of Connection
- -----------------             ------------------------------------------------
Richard Norris
Vice President

Anne Pickrell
Vice President                Vice President of Dean Witter Global Short-
                              Term Income Fund Inc.
Hugh Rose
Vice President

Robert Rossetti               Vice President of Dean Witter Precious Metals and
Vice President                Minerals Trust.

Ruth Rossi                    Vice President and Assistant Secretary of DWSC;
Vice President and            Assistant Secretary of the Dean Witter Funds and
Assistant Secretary           the TCW/DW Funds.

Carl F. Sadler
Vice President

Rafael Scolari
Vice President                Vice President of Prime Income Trust.

Peter Seeley                  Vice President of Dean Witter World
Vice President                Wide Income Trust.

Jayne M. Stevlingson
Vice President                Vice President of various Dean Witter Funds.

Kathleen Stromberg
Vice President                Vice President of various Dean Witter Funds.

Vinh Q. Tran
Vice President                Vice President of various Dean Witter Funds.

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

Katherine C. Wickham
Vice President


                                       11
<PAGE>

Item 29.  Principal Underwriters

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

 (1)        Dean Witter Liquid Asset Fund Inc.
 (2)        Dean Witter Tax-Free Daily Income Trust
 (3)        Dean Witter California Tax-Free Daily Income Trust
 (4)        Dean Witter Retirement Series
 (5)        Dean Witter Dividend Growth Securities Inc.
 (6)        Dean Witter Global Asset Allocation
 (7)        Dean Witter World Wide Investment Trust
 (8)        Dean Witter Capital Growth Securities
 (9)        Dean Witter Convertible Securities Trust
(10)        Active Assets Tax-Free Trust
(11)        Active Assets Money Trust
(12)        Active Assets California Tax-Free Trust
(13)        Active Assets Government Securities Trust
(14)        Dean Witter Short-Term Bond Fund
(15)        Dean Witter Mid-Cap Growth Fund
(16)        Dean Witter U.S. Government Securities Trust
(17)        Dean Witter High Yield Securities Inc.
(18)        Dean Witter New York Tax-Free Income Fund
(19)        Dean Witter Tax-Exempt Securities Trust
(20)        Dean Witter California Tax-Free Income Fund
(21)        Dean Witter Limited Term Municipal Trust
(22)        Dean Witter Natural Resource Development Securities Inc.
(23)        Dean Witter World Wide Income Trust
(24)        Dean Witter Utilities Fund
(25)        Dean Witter Strategist Fund
(26)        Dean Witter New York Municipal Money Market Trust
(27)        Dean Witter Intermediate Income Securities
(28)        Prime Income Trust
(29)        Dean Witter European Growth Fund Inc.
(30)        Dean Witter Developing Growth Securities Trust
(31)        Dean Witter Precious Metals and Minerals Trust
(32)        Dean Witter Pacific Growth Fund Inc.
(33)        Dean Witter Multi-State Municipal Series Trust
(34)        Dean Witter Federal Securities Trust
(35)        Dean Witter Short-Term U.S. Treasury Trust
(36)        Dean Witter Diversified Income Trust
(37)        Dean Witter Health Sciences Trust
(38)        Dean Witter Global Dividend Growth Securities
(39)        Dean Witter American Value Fund
(40)        Dean Witter U.S. Government Money Market Trust
(41)        Dean Witter Global Short-Term Income Fund Inc.
(42)        Dean Witter Premier Income Trust
(43)        Dean Witter Value-Added Market Series
(44)        Dean Witter Global Utilities Fund
(45)        Dean Witter High Income Securities
(46)        Dean Witter National Municipal Trust
(47)        Dean Witter International SmallCap Fund


                                       12
<PAGE>

(48)        Dean Witter Balanced Growth Fund
(49)        Dean Witter Balanced Income Fund
(50)        Dean Witter Hawaii Municipal Trust
(51)        Dean Witter Variable Investment Series
(52)        Dean Witter Capital Appreciation Fund
(53)        Dean Witter Intermediate Term U.S. Treasury Trust
(54)        Dean Witter Information Fund
(55)        Dean Witter Japan Fund
(56)        Dean Witter Income Builder Fund
(57)        Dean Witter Special Value Fund
(58)        Dean Witter Financial Services Trust
(59)        Dean Witter Market Leader Trust
 (1)        TCW/DW Core Equity Trust
 (2)        TCW/DW North American Government Income Trust
 (3)        TCW/DW Latin American Growth Fund
 (4)        TCW/DW Income and Growth Fund
 (5)        TCW/DW Small Cap Growth Fund
 (6)        TCW/DW Balanced Fund
 (7)        TCW/DW Total Return Trust
 (8)        TCW/DW Mid-Cap Equity Trust
 (9)        TCW/DW Global Telecom Trust
(10)        TCW/DW Strategic Income Trust

     (b) The following information is given regarding directors and officers of
     Distributors not listed in Item 28 above. The principal address of
     Distributors is Two World Trade Center, New York, New York 10048. None of
     the following persons has any position or office with the Registrant.

                                                  Positions and
                                                  Office with
Name                                              Distributors
- ----                                              -------------
Fredrick K. Kubler                           Senior Vice President, Assistant
                                             Secretary and Chief Compliance
                                             Officer.

Michael T. Gregg                             Vice President and Assistant
                                             Secretary.

Item 30.  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 31.  Management Services

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


                                       13
<PAGE>

Item 32.  Undertakings

     Registrant hereby undertakes to furnish each person to whom a prospectus is
delivered with a copy of the Registrant's latest annual report to shareholders,
upon request and without charge.


                                       14
<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 13th day of March, 1997.

                                     DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND

                                     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. 13 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                               03/13/97
    --------------------------
        Charles A. Fiumefreddo

(2) Principal Financial Officer    Treasurer and Principal
                                   Accounting Officer


By  /s/ Thomas F. Caloia                                     03/13/97
    --------------------------
        Thomas F. Caloia

(3) Majority of the Trustees

    Charles A. Fiumefreddo (Chairman)
    Philip J. Purcell


By  /s/ Barry Fink                                           03/13/97
    --------------------------
        Barry Fink
        Attorney-in-Fact

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


By  /s/ David M. Butowsky                                    03/13/97
    --------------------------
        David M. Butowsky
        Attorney-in-Fact



<PAGE>

                   DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND

                                  EXHIBIT INDEX

Exhibit No.                   Description
- -----------                   -----------
 2.     -       By-laws of the Registrant, Amended and Restated
                as of October 25, 1996.
              
 8.     -       Form of Amendment to the Custody Agreement between
                the Registrant and The Bank of New York.
              
11.     -       Consent of Independent Accountants
              
16.      -      Schedules for Computation of Performance Quotations
              
27.     -       Financial Data Schedule

<PAGE>

                                     BY-LAWS

                                       OF

                   DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
                   AMENDED AND RESTATED AS OF OCTOBER 25, 1996

                                    ARTICLE I

                                   DEFINITIONS

      The terms "Commission", "Declaration", "Distributor", "Investment
Adviser", "Majority Shareholder Vote", "1940 Act", "Shareholder", "Shares",
"Transfer Agent", "Trust", "Trust Property", and "Trustees" have the respective
meanings given them in the Declaration of Trust of Dean Witter California
Tax-Free Income Fund dated April 9, 1984, as amended from time to time.

                                   ARTICLE II

                                     OFFICES

      SECTION 2.1. Principal Office. Until changed by the Trustees, the
principal office of the Trust in the Commonwealth of Massachusetts shall be in
the City of Boston, County of Suffolk.

      SECTION 2.2. Other Offices. In addition to its principal office in the
Commonwealth of Massachusetts, the Trust may have an office or offices in the
City of New York, State of New York, and at such other places within and without
the Commonwealth as the Trustees may from time to time designate or the business
of the Trust may require.

                                   ARTICLE III

                             SHAREHOLDERS' MEETINGS

      SECTION 3.1. Place of Meetings. Meetings of Shareholders shall be held at
such place, within or without the Commonwealth of Massachusetts, as may be
designated from time to time by the Trustees.

      SECTION 3.2. Meetings. Meetings of Shareholders of the Trust shall be held
whenever called by the Trustees or the President of the Trust and whenever
election of a Trustee or Trustees by Shareholders is required by the provisions
of Section 16(a) of the 1940 Act, for that purpose. Meetings of Shareholders
shall also be called by the Secretary upon the written request of the holders of
Shares entitled to vote not less than twenty-five percent (25%) of all the votes
entitled to be cast at such meeting. Such request shall state the purpose or
purposes of such meeting and the matters proposed to be acted on thereat. The
Secretary shall inform such Shareholders of the reasonable estimated cost of
preparing and mailing such notice of the meeting, and upon payment to the Trust
of such costs, the Secretary shall give notice stating the purpose or purposes
of the meeting to all entitled to vote at such meeting. No meeting need be
called upon the request of the holders of Shares entitled to cast less than a
majority of all votes entitled to be cast at such meeting, to consider any
matter which is substantially the same as a matter voted upon at any meeting of
Shareholders held during the preceding twelve months.

      SECTION 3.3. Notice of Meetings. Written or printed notice of every
Shareholders' meeting stating the place, date, and purpose or purposes thereof,
shall be given by the Secretary not less than ten (10) nor more than ninety (90)
days before such meeting to each Shareholder entitled to vote at such meeting.
Such notice shall be deemed to be given when deposited in the United States
mail, postage prepaid, directed to the Shareholder at his address as it appears
on the records of the Trust.


<PAGE>

      SECTION 3.4. Quorum and Adjournment of Meetings. Except as otherwise
provided by law, by the Declaration or by these By-Laws, at all meetings of
Shareholders the holders of a majority of the Shares issued and outstanding and
entitled to vote thereat, present in person or represented by proxy, shall be
requisite and shall constitute a quorum for the transaction of business. In the
absence of a quorum, the Shareholders present or represented by proxy and
entitled to vote thereat shall have power to adjourn the meeting from time to
time. Any adjourned meeting may be held as adjourned without further notice. At
any adjourned meeting at which a quorum shall be present, any business may be
transacted as if the meeting had been held as originally called.

      SECTION 3.5. Voting Rights, Proxies. At each meeting of Shareholders, each
holder of record of Shares entitled to vote thereat shall be entitled to one
vote in person or by proxy, executed in writing by the Shareholder or his duly
authorized attorney-in-fact, for each Share of beneficial interest of the Trust
and for the fractional portion of one vote for each fractional Share entitled to
vote so registered in his name on the records of the Trust on the date fixed as
the record date for the determination of Shareholders entitled to vote at such
meeting. No proxy shall be valid after eleven months from its date, unless
otherwise provided in the proxy. At all meetings of Shareholders, unless the
voting is conducted by inspectors, all questions relating to the qualification
of voters and the validity of proxies and the acceptance or rejection of votes
shall be decided by the chairman of the meeting. Pursuant to a resolution of a
majority of the Trustees, proxies may be solicited in the name of one or more
Trustees or Officers of the Trust.

      SECTION 3.6. Vote Required. Except as otherwise provided by law, by the
Declaration of Trust, or by these By-Laws, at each meeting of Shareholders at
which a quorum is present, all matters shall be decided by Majority Shareholder
Vote.

      SECTION 3.7. Inspectors of Election. In advance of any meeting of
Shareholders, the Trustees may appoint Inspectors of Election to act at the
meeting or any adjournment thereof. If Inspectors of Election are not so
appointed, the chairman of any meeting of Shareholders may, and on the request
of any Shareholder or his proxy shall, appoint Inspectors of Election of the
meeting. In case any person appointed as Inspector fails to appear or fails or
refuses to act, the vacancy may be filled by appointment made by the Trustees in
advance of the convening of the meeting or at the meeting by the person acting
as chairman. The Inspectors of Election shall determine the number of Shares
outstanding, the Shares represented at the meeting, the existence of a quorum,
the authenticity, validity and effect of proxies, shall receive votes, ballots
or consents, shall hear and determine all challenges and questions in any way
arising in connection with the right to vote, shall count and tabulate all votes
or consents, determine the results, and do such other acts as may be proper to
conduct the election or vote with fairness to all Shareholders. On request of
the chairman of the meeting, or of any Shareholder or his proxy, the Inspectors
of Election shall make a report in writing of any challenge or question or
matter determined by them and shall execute a certificate of any facts found by
them.

      SECTION 3.8. Inspection of Books and Records. Shareholders shall have such
rights and procedures of inspection of the books and records of the Trust as are
granted to Shareholders under the Corporations and Associations Law of the State
of Maryland.

      SECTION 3.9. Action by Shareholders Without Meeting. Except as otherwise
provided by law, the provisions of these By-Laws relating to notices and
meetings to the contrary notwithstanding, any action required or permitted to be
taken at any meeting of Shareholders may be taken without a meeting if a
majority of the Shareholders entitled to vote upon the action consent to the
action in writing and such consents are filed with the records of the Trust.
Such consent shall be treated for all purposes as a vote taken at a meeting of
Shareholders.

      SECTION 3.10. Presence at Meetings. Presence at meetings of shareholders
requires physical attendance by the shareholder or his or her proxy at the
meeting site and does not encompass attendance by telephonic or other electronic
means.


                                       2
<PAGE>

                                   ARTICLE IV

                                    TRUSTEES

      SECTION 4.1. Meetings of the Trustees. The Trustees may in their
discretion provide for regular or special meetings of the Trustees. Regular
meetings of the Trustees may be held at such time and place as shall be
determined from time to time by the Trustees without further notice. Special
meetings of the Trustees may be called at any time by the President and shall be
called by the President or the Secretary upon the written request of any two (2)
Trustees.

      SECTION 4.2. Notice of Special Meetings. Written notice of special
meetings of the Trustees, stating the place, date and time thereof, shall be
given not less than two (2) days before such meeting to each Trustee,
personally, by telegram, by mail, or by leaving such notice at his place of
residence or usual place of business. If mailed, such notice shall be deemed to
be given when deposited in the United States mail, postage prepaid, directed to
the Trustee at his address as it appears on the records of the Trust. Subject to
the provisions of the 1940 Act, notice or waiver of notice need not specify the
purpose of any special meeting.

      SECTION 4.3. Telephone Meetings. Subject to the provisions of the 1940
Act, any Trustee, or any member or members of any committee designated by the
Trustees, may participate in a meeting of the Trustees, or any such committee,
as the case may be, by means of a conference telephone or similar communications
equipment if all persons participating in the meeting can hear each other at the
same time. Participation in a meeting by these means constitutes presence in
person at the meeting.

      SECTION 4.4. Quorum, Voting and Adjournment of Meetings. At all meetings
of the Trustees, a majority of the Trustees shall be requisite to and shall
constitute a quorum for the transaction of business. If a quorum is present, the
affirmative vote of a majority of the Trustees present shall be the act of the
Trustees, unless the concurrence of a greater proportion is expressly required
for such action by law, the Declaration or these By-Laws. If at any meeting of
the Trustees there be less than a quorum present, the Trustees present thereat
may adjourn the meeting from time to time, without notice other than
announcement at the meeting, until a quorum shall have been obtained.

      SECTION 4.5. Action by Trustees Without Meeting. The provisions of these
By-Laws covering notices and meetings to the contrary notwithstanding, and
except as required by law, any action required or permitted to be taken at any
meeting of the Trustees may be taken without a meeting if a consent in writing
setting forth the action shall be signed by all of the Trustees entitled to vote
upon the action and such written consent is filed with the minutes of
proceedings of the Trustees.

      SECTION 4.6. Expenses and Fees. Each Trustee may be allowed expenses, if
any, for attendance at each regular or special meeting of the Trustees, and each
Trustee who is not an officer or employee of the Trust or of its investment
manager or underwriter or of any corporate affiliate of any of said persons
shall receive for services rendered as a Trustee of the Trust such compensation
as may be fixed by the Trustees. Nothing herein contained shall be construed to
preclude any Trustee from serving the Trust in any other capacity and receiving
compensation therefor.

      SECTION 4.7. Execution of Instruments and Documents and Signing of Checks
and Other Obligations and Transfers. All instruments, documents and other papers
shall be executed in the name and on behalf of the Trust and all checks, notes,
drafts and other obligations for the payment of money by the Trust shall be
signed, and all transfer of securities standing in the name of the Trust shall
be executed, by the Chairman, the President, any Vice President or the Treasurer
or by any one or more officers or agents of the Trust as shall be designated for
that purpose by vote of the Trustees; notwithstanding the above, nothing in this
Section 4.7 shall be deemed to preclude the electronic authorization, by
designated persons, of the Trust's Custodian (as described herein in Section
9.1) to transfer assets of the Trust, as provided for herein in Section 9.1.

      SECTION 4.8. Indemnification of Trustees, Officers, Employees and Agents.
(a) The Trust shall indemnify any person who was or is a party or is threatened
to be made a party to any threatened, pending, or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative


                                       3
<PAGE>

(other than an action by or in the right of the Trust) by reason of the fact
that he is or was a Trustee, officer, employee, or agent of the Trust. The
indemnification shall be against expenses, including attorneys' fees, judgments,
fines, and amounts paid in settlement, actually and reasonably incurred by him
in connection with the action, suit, or proceeding, if he acted in good faith
and in a manner he reasonably believed to be in or not opposed to the best
interests of the Trust, and, with respect to any criminal action or proceeding,
had no reasonable cause to believe his conduct was unlawful. The termination of
any action, suit or proceeding by judgment, order, settlement, conviction, or
upon a plea of nolo contendere or its equivalent, shall not, of itself, create a
presumption that the person did not act in good faith and in a manner which he
reasonably believed to be in or not opposed to the best interests of the Trust,
and, with respect to any criminal action or proceeding, had reasonable cause to
believe that his conduct was unlawful.

      (b) The Trust shall indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action or
suit by or on behalf of the Trust to obtain a judgment or decree in its favor by
reason of the fact that he is or was a Trustee, officer, employee, or agent of
the Trust. The indemnification shall be against expenses, including attorneys'
fees actually and reasonably incurred by him in connection with the defense or
settlement of the action or suit, if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the Trust;
except that no indemnification shall be made in respect of any claim, issue, or
matter as to which the person has been adjudged to be liable for negligence or
misconduct in the performance of his duty to the Trust, except to the extent
that the court in which the action or suit was brought, or a court of equity in
the county in which the Trust has its principal office, determines upon
application that, despite the adjudication of liability but in view of all
circumstances of the case, the person is fairly and reasonably entitled to
indemnity for those expenses which the court shall deem proper, provided such
Trustee, officer, employee or agent is not adjudged to be liable by reason of
his willful misfeasance, bad faith, gross negligence or reckless disregard of
the duties involved in the conduct of his office.

      (c) To the extent that a Trustee, officer, employee, or agent of the Trust
has been successful on the merits or otherwise in defense of any action, suit or
proceeding referred to in subsection (a) or (b) or in defense of any claim,
issue or matter therein, he shall be indemnified against expenses, including
attorneys' fees, actually and reasonably incurred by him in connection
therewith.

      (d) (1) Unless a court orders otherwise, any indemnification under
subsections (a) or (b) of this section may be made by the Trust only as
authorized in the specific case after a determination that indemnification of
the Trustee, officer, employee, or agent is proper in the circumstances because
he has met the applicable standard of conduct set forth in subsections (a) or
(b).

            (2) The determination shall be made:

                  (i) By the Trustees, by a majority vote of a quorum which
            consists of Trustees who were not parties to the action, suit or
            proceeding; or

                  (ii) If the required quorum is not obtainable, or if a quorum
            of disinterested Trustees so directs, by independent legal counsel
            in a written opinion; or

                  (iii) By the Shareholders.

            (3) Notwithstanding any provision of this Section 4.8, no person
      shall be entitled to indemnification for any liability, whether or not
      there is an adjudication of liability, arising by reason of willful
      misfeasance, bad faith, gross negligence, or reckless disregard of duties
      as described in Section 17(h) and (i) of the Investment Company Act of
      1940 ("disabling conduct"). A person shall be deemed not liable by reason
      of disabling conduct if, either:

                  (i) a final decision on the merits is made by a court or other
            body before whom the proceeding was brought that the person to be
            indemnified ("indemnitee") was not liable by reason of disabling
            conduct; or

                  (ii) in the absence of such a decision, a reasonable
            determination, based upon a review of the facts, that the indemnitee
            was not liable by reason of disabling conduct, is made by either--


                                       4
<PAGE>

                  (A) a majority of a quorum of Trustees who are neither
            "interested persons" of the Trust, as defined in Section 2(a)(19) of
            the Investment Company Act of 1940, nor parties to the action, suit
            or proceeding, or

                  (B) an independent legal counsel in a written opinion.

      (e) Expenses, including attorneys' fees, incurred by a Trustee, officer,
employee or agent of the Trust in defending a civil or criminal action, suit or
proceeding may be paid by the Trust in advance of the final disposition thereof
if:

            (1) authorized in the specific case by the Trustees; and

            (2) the Trust receives an undertaking by or on behalf of the
      Trustee, officer, employee or agent of the Trust to repay the advance if
      it is not ultimately determined that such person is entitled to be
      indemnified by the Trust; and

            (3) either, (i) such person provides a security for his undertaking,
      or

                  (ii) the Trust is insured against losses by reason of any
            lawful advances, or

                  (iii) a determination, based on a review of readily available
            facts, that there is reason to believe that such person ultimately
            will be found entitled to indemnification, is made by either--

                        (A) a majority of a quorum which consists of Trustees
                  who are neither "interested persons" of the Trust, as defined
                  in Section 2(a)(19) of the 1940 Act, nor parties to the
                  action, suit or proceeding, or

                        (B) an independent legal counsel in a written opinion.

      (f) The indemnification provided by this Section shall not be deemed
exclusive of any other rights to which a person may be entitled under any
by-law, agreement, vote of Shareholders or disinterested Trustees or otherwise,
both as to action in his official capacity and as to action in another capacity
while holding the office, and shall continue as to a person who has ceased to be
a Trustee, officer, employee, or agent and inure to the benefit of the heirs,
executors and administrators of such person; provided that no person may satisfy
any right of indemnity or reimbursement granted herein or to which he may be
otherwise entitled except out of the property of the Trust, and no Shareholder
shall be personally liable with respect to any claim for indemnity or
reimbursement or otherwise.

      (g) The Trust may purchase and maintain insurance on behalf of any person
who is or was a Trustee, officer, employee, or agent of the Trust, against any
liability asserted against him and incurred by him in any such capacity, or
arising out of his status as such. However, in no event will the Trust purchase
insurance to indemnify any officer or Trustee against liability for any act for
which the Trust itself is not permitted to indemnify him.

      (h) Nothing contained in this Section shall be construed to protect any
Trustee or officer of the Trust against any liability to the Trust or to its
security holders to which he would otherwise be subject by reason of willful
misfeasance, bad faith, gross negligence or reckless disregard of the duties
involved in the conduct of his office.

                                    ARTICLE V

                                   COMMITTEES

      SECTION 5.1. Executive and Other Committees. The Trustees, by resolution
adopted by a majority of the Trustees, may designate an Executive Committee
and/or committees, each committee to consist of two (2) or more of the Trustees
of the Trust and may delegate to such committees, in the intervals between
meetings of the Trustees, any or all of the powers of the Trustees in the
management of the business and affairs of the Trust. In the absence of any
member of any such committee, the members thereof present at any meeting,
whether or not they constitute a quorum, may appoint a Trustee to act in place
of such absent member. Each such committee shall keep a record of its
proceedings.


                                       5
<PAGE>

      The Executive Committee and any other committee shall fix its own rules or
procedure, but the presence of at least fifty percent (50%) of the members of
the whole committee shall in each case be necessary to constitute a quorum of
the committee and the affirmative vote of the majority of the members of the
committee present at the meeting shall be necessary to take action.

      All actions of the Executive Committee shall be reported to the Trustees
at the meeting thereof next succeeding to the taking of such action.

      SECTION 5.2. Advisory Committee. The Trustees may appoint an advisory
committee which shall be composed of persons who do not serve the Trust in any
other capacity and which shall have advisory functions with respect to the
investments of the Trust but which shall have no power to determine that any
security or other investment shall be purchased, sold or otherwise disposed of
by the Trust. The number of persons constituting any such advisory committee
shall be determined from time to time by the Trustees. The members of any such
advisory committee may receive compensation for their services and may be
allowed such fees and expenses for the attendance at meetings as the Trustees
may from time to time determine to be appropriate.

      SECTION 5.3. Committee Action Without Meeting. The provisions of these
By-Laws covering notices and meetings to the contrary notwithstanding, and
except as required by law, any action required or permitted to be taken at any
meeting of any Committee of the Trustees appointed pursuant to Section 5.1 of
these By-Laws may be taken without a meeting if a consent in writing setting
forth the action shall be signed by all members of the Committee entitled to
vote upon the action and such written consent is filed with the records of the
proceedings of the Committee.

                                   ARTICLE VI

                                    OFFICERS

      SECTION 6.1. Executive Officers. The executive officers of the Trust shall
be a Chairman, a President, one or more Vice Presidents, a Secretary and a
Treasurer. The President shall be selected from among the Trustees but none of
the other executive officers need be a Trustee. Two or more offices, except
those of President and any Vice President, may be held by the same person, but
no officer shall execute, acknowledge or verify any instrument in more than one
capacity. The executive officers of the Trust shall be elected annually by the
Trustees and each executive officer so elected shall hold office until his
successor is elected and has qualified.

      SECTION 6.2. Other Officers and Agents. The Trustees may also elect one or
more Assistant Vice Presidents, Assistant Secretaries and Assistant Treasurers
and may elect, or may delegate to the President the power to appoint, such other
officers and agents as the Trustees shall at any time or from time to time deem
advisable.

      SECTION 6.3. Term and Removal and Vacancies. Each officer of the Trust
shall hold office until his successor is elected and has qualified. Any officer
or agent of the Trust may be removed by the Trustees whenever, in their
judgment, the best interests of the Trust will be served thereby, but such
removal shall be without prejudice to the contractual rights, if any, of the
person so removed.

      SECTION 6.4. Compensation of Officers. The compensation of officers and
agents of the Trust shall be fixed by the Trustees, or by the President to the
extent provided by the Trustees with respect to officers appointed by the
President.

      SECTION 6.5. Power and Duties. All officers and agents of the Trust, as
between themselves and the Trust, shall have such authority and perform such
duties in the management of the Trust as may be provided in or pursuant to these
By-Laws, or to the extent not so provided, as may be prescribed by the Trustees;
provided, that no rights of any third party shall be affected or impaired by any
such By-Law or resolution of the Trustees unless he has knowledge thereof.

      SECTION 6.6. The Chairman. The Chairman shall preside at all meetings of
the Shareholders and of the Trustees, he shall be a signatory on all Annual and
Semi-Annual Reports as may be sent to shareholders, and he shall perform such
other duties as the Trustees may from time to time prescribe.


                                       6
<PAGE>

      SECTION 6.7. The President. (a) The President shall be the chief executive
officer of the Trust; he shall have general and active management of the
business of the Trust, shall see that all orders and resolutions of the Board of
Trustees are carried into effect, and, in connection therewith, shall be
authorized to delegate to one or more Vice Presidents such of his powers and
duties at such times and in such manner as he may deem advisable.

      (b) In the absence of the Chairman, the President shall preside at all
meetings of the shareholders and the Board of Trustees; and he shall perform
such other duties as the Board of Trustees may from time to time prescribe.

      SECTION 6.8. The Vice Presidents. The Vice Presidents shall be of such
number and shall have such titles as may be determined from time to time by the
Trustees. The Vice President, or, if there be more than one, the Vice Presidents
in the order of their seniority as may be determined from time to time by the
Trustees or the President, shall, in the absence or disability of the President,
exercise the powers and perform the duties of the President, and he or they
shall perform such other duties as the Trustees or the President may from time
to time prescribe.

      SECTION 6.9. The Assistant Vice Presidents. The Assistant Vice President,
or, if there be more than one, the Assistant Vice Presidents, shall perform such
duties and have such powers as may be assigned them from time to time by the
Trustees or the President.

      SECTION 6.10. The Secretary. The Secretary shall attend all meetings of
the Trustees and all meetings of the Shareholders and record all the proceedings
of the meetings of the Shareholders and of the Trustees in a book to be kept for
that purpose, and shall perform like duties for the standing committees when
required. He shall give, or cause to be given, notice of all meetings of the
Shareholders and special meetings of the Trustees, and shall perform such other
duties and have such powers as the Trustees, or the President, may from time to
time prescribe. He shall keep in safe custody the seal of the Trust and affix or
cause the same to be affixed to any instrument requiring it, and, when so
affixed, it shall be attested by his signature or by the signature of an
Assistant Secretary.

      SECTION 6.11. The Assistant Secretaries. The Assistant Secretary, or, if
there be more than one, the Assistant Secretaries in the order determined by the
Trustees or the President, shall, in the absence or disability of the Secretary,
perform the duties and exercise the powers of the Secretary and shall perform
such duties and have such other powers as the Trustees or the President may from
time to time prescribe.

      SECTION 6.12. The Treasurer. The Treasurer shall be the chief financial
officer of the Trust. He shall keep or cause to be kept full and accurate
accounts of receipts and disbursements in books belonging to the Trust, and he
shall render to the Trustees and the President, whenever any of them require it,
an account of his transactions as Treasurer and of the financial condition of
the Trust; and he shall perform such other duties as the Trustees, or the
President, may from time to time prescribe.

      SECTION 6.13. The Assistant Treasurers. The Assistant Treasurer, or, if
there shall be more than one, the Assistant Treasurers in the order determined
by the Trustees or the President, shall, in the absence or disability of the
Treasurer, perform the duties and exercise the powers of the Treasurer and shall
perform such other duties and have such other powers as the Trustees, or the
President, may from time to time prescribe.

      SECTION 6.14. Delegation of Duties. Whenever an officer is absent or
disabled, or whenever for any reason the Trustees may deem it desirable, the
Trustees may delegate the powers and duties of an officer or officers to any
other officer or officers or to any Trustee or Trustees.

                                   ARTICLE VII

                           DIVIDENDS AND DISTRIBUTIONS

      Subject to any applicable provisions of law and the Declaration, dividends
and distributions upon the Shares may be declared at such intervals as the
Trustees may determine, in cash, in securities or other property, or in Shares,
from any sources permitted by law, all as the Trustees shall from time to time
determine.


                                       7
<PAGE>

      Inasmuch as the computation of net income and net profits from the sales
of securities or other properties for federal income tax purposes may vary from
the computation thereof on the records of the Trust, the Trustees shall have
power, in their discretion, to distribute as income dividends and as capital
gain distributions, respectively, amounts sufficient to enable the Trust to
avoid or reduce liability for federal income taxes.

                                  ARTICLE VIII

                             CERTIFICATES OF SHARES

      SECTION 8.1. Certificates of Shares. Certificates for Shares of each
series or class of Shares shall be in such form and of such design as the
Trustees shall approve, subject to the right of the Trustees to change such form
and design at any time or from time to time, and shall be entered in the records
of the Trust as they are issued. Each such certificate shall bear a
distinguishing number; shall exhibit the holder's name and certify the number of
full Shares owned by such holder; shall be signed by or in the name of the Trust
by the President, or a Vice President, and countersigned by the Secretary or an
Assistant Secretary or the Treasurer and an Assistant Treasurer of the Trust;
shall be sealed with the seal; and shall contain such recitals as may be
required by law. Where any certificate is signed by a Transfer Agent or by a
Registrar, the signature of such officers and the seal may be facsimile, printed
or engraved. The Trust may, at its option, determine not to issue a certificate
or certificates to evidence Shares owned of record by any Shareholder.

      In case any officer or officers who shall have signed, or whose facsimile
signature or signatures shall appear on, any such certificate or certificates
shall cease to be such officer or officers of the Trust, whether because of
death, resignation or otherwise, before such certificate or certificates shall
have been delivered by the Trust, such certificate or certificates shall,
nevertheless, be adopted by the Trust and be issued and delivered as though the
person or persons who signed such certificate or certificates or whose facsimile
signature or signatures shall appear therein had not ceased to be such officer
or officers of the Trust.

      No certificate shall be issued for any share until such share is fully
paid.

      SECTION 8.2. Lost, Stolen, Destroyed and Mutilated Certificates. The
Trustees may direct a new certificate or certificates to be issued in place of
any certificate or certificates theretofore issued by the Trust alleged to have
been lost, stolen or destroyed, upon satisfactory proof of such loss, theft, or
destruction; and the Trustees may, in their discretion, require the owner of the
lost, stolen or destroyed certificate, or his legal representative, to give to
the Trust and to such Registrar, Transfer Agent and/or Transfer Clerk as may be
authorized or required to countersign such new certificate or certificates, a
bond in such sum and of such type as they may direct, and with such surety or
sureties, as they may direct, as indemnity against any claim that may be against
them or any of them on account of or in connection with the alleged loss, theft
or destruction of any such certificate.

                                   ARTICLE IX

                                    CUSTODIAN

      SECTION 9.1. Appointment and Duties. The Trust shall at times employ a
bank or trust company having capital, surplus and undivided profits of at least
five million dollars ($5,000,000) as custodian with authority as its agent, but
subject to such restrictions, limitations and other requirements, if any, as may
be contained in these By-Laws and the 1940 Act:

            (1) to receive and hold the securities owned by the Trust and
      deliver the same upon written or electronically transmitted order;

            (2) to receive and receipt for any moneys due to the Trust and
      deposit the same in its own banking department or elsewhere as the
      Trustees may direct;

            (3) to disburse such funds upon orders or vouchers;


                                       8
<PAGE>

all upon such basis of compensation as may be agreed upon between the 
Trustees and the custodian. If so directed by a Majority Shareholder Vote, 
the custodian shall deliver and pay over all property of the Trust held by it 
as specified in such vote. 

      The Trustees may also authorize the custodian to employ one or more
sub-custodians from time to time to perform such of the acts and services of the
custodian and upon such terms and conditions as may be agreed upon between the
custodian and such sub-custodian and approved by the Trustees.

      SECTION 9.2. Central Certificate System. Subject to such rules,
regulations and orders as the Commission may adopt, the Trustees may direct the
custodian to deposit all or any part of the securities owned by the Trust in a
system for the central handling of securities established by a national
securities exchange or a national securities association registered with the
Commission under the Securities Exchange Act of 1934, or such other person as
may be permitted by the Commission, or otherwise in accordance with the 1940
Act, pursuant to which system all securities of any particular class or series
of any issuer deposited within the system are treated as fungible and may be
transferred or pledged by bookkeeping entry without physical delivery of such
securities, provided that all such deposits shall be subject to withdrawal only
upon the order of the Trust.

                                    ARTICLE X

                                WAIVER OF NOTICE

      Whenever any notice of the time, place or purpose of any meeting of
Shareholders, Trustees, or of any committee is required to be given in
accordance with law or under the provisions of the Declaration or these By-Laws,
a waiver thereof in writing, signed by the person or persons entitled to such
notice and filed with the records of the meeting, whether before or after the
holding thereof, or actual attendance at the meeting of shareholders, Trustees
or committee, as the case may be, in person, shall be deemed equivalent to the
giving of such notice to such person.

                                   ARTICLE XI

                                  MISCELLANEOUS

      SECTION 11.1. Location of Books and Records. The books and records of the
Trust may be kept outside the Commonwealth of Massachusetts at such place or
places as the Trustees may from time to time determine, except as otherwise
required by law.

      SECTION 11.2. Record Date. The Trustees may fix in advance a date as the
record date for the purpose of determining Shareholders entitled to notice of,
or to vote at, any meeting of Shareholders, or Shareholders entitled to receive
payment of any dividend or the allotment of any rights, or in order to make a
determination of Shareholders for any other proper purpose. Such date, in any
case, shall be not more than ninety (90) days, and in case of a meeting of
Shareholders not less than ten (10) days, prior to the date on which particular
action requiring such determination of Shareholders is to be taken. In lieu of
fixing a record date the Trustees may provide that the transfer books shall be
closed for a stated period but not to exceed, in any case, twenty (20) days. If
the transfer books are closed for the purpose of determining Shareholders
entitled to notice of a vote at a meeting of Shareholders, such books shall be
closed for at least ten (10) days immediately preceding such meeting.

      SECTION 11.3. Seal. The Trustees shall adopt a seal, which shall be in
such form and shall have such inscription thereon as the Trustees may from time
to time provide. The seal of the Trust may be affixed to any document, and the
seal and its attestation may be lithographed, engraved or otherwise printed on
any document with the same force and effect as if it had been imprinted and
attested manually in the same manner and with the same effect as if done by a
Massachusetts business corporation under Massachusetts law.

      SECTION 11.4. Fiscal Year. The fiscal year of the Trust shall end on such
date as the Trustees may by resolution specify, and the Trustees may by
resolution change such date for future fiscal years at any time and from time to
time.


                                       9
<PAGE>

      SECTION 11.5. Orders for Payment of Money. All orders or instructions for
the payment of money of the Trust, and all notes or other evidences of
indebtedness issued in the name of the Trust, shall be signed by such officer or
officers or such other person or persons as the Trustees may from time to time
designate, or as may be specified in or pursuant to the agreement between the
Trust and the bank or trust company appointed as Custodian of the securities and
funds of the Trust.

                                   ARTICLE XII

                       COMPLIANCE WITH FEDERAL REGULATIONS

      The Trustees are hereby empowered to take such action as they may deem to
be necessary, desirable or appropriate so that the Trust is or shall be in
compliance with any federal or state statute, rule or regulation with which
compliance by the Trust is required.

                                  ARTICLE XIII

                                   AMENDMENTS

      These By-Laws may be amended, altered, or repealed, or new By-Laws may be
adopted, (a) by a Majority Shareholder Vote, or (b) by the Trustees; provided,
however, that no By-Law may be amended, adopted or repealed by the Trustees if
such amendment, adoption or repeal requires, pursuant to law, the Declaration,
or these By-Laws, a vote of the Shareholders. The Trustees shall in no event
adopt By-Laws which are in conflict with the Declaration, and any apparent
inconsistency shall be construed in favor of the related provisions in the
Declaration.

                                   ARTICLE XIV

                              DECLARATION OF TRUST

      The Declaration of Trust establishing Dean Witter California Tax-Free
Income Fund, dated April 9, 1984, a copy of which is on file in the office of
the Secretary of the Commonwealth of Massachusetts, provides that the name Dean
Witter California Tax-Free Income Fund refers to the Trustees under the
Declaration collectively as Trustees, but not as individuals or personally; and
no Trustee, Shareholder, officer, employee or agent of Dean Witter California
Tax-Free Income Fund shall be held to any personal liability, nor shall resort
be had to their private property for the satisfaction of any obligation or claim
or otherwise, in connection with the affairs of said Dean Witter California
Tax-Free Income Fund, but the Trust Estate only shall be liable.


                                       10


<PAGE>

                         AMENDMENT TO CUSTODY AGREEMENT

      Amendment made as of this 17th day of April, 1996 by and between Dean
Witter California Tax-Free Income Fund (the "Fund") and The Bank of New York
(the "Custodian") to the Custody Agreement between the Fund and the Custodian
dated September 20, 1991 (the "Custody Agreement"). The Custody Agreement is
hereby amended as follows:

      Article XV Section 8 of the Custody Agreement shall be deleted and be
replaced by Sections 8.(a), 8.(b) and 8.(c) as set forth below:

      "8. (a) The Custodian will use reasonable care with respect to its
obligations under this Agreement and the safekeeping of Securities and moneys
owned by the Fund. The Custodian shall indemnify the Fund against and save the
Fund harmless from all liability, claims, losses and demands whatsoever,
including attorneys' fees, howsoever arising or incurred as the result of the
failure of a subcustodian which is a banking institution located in a foreign
country and identified on Schedule A attached hereto (each, a "Subcustodian") to
exercise reasonable care with respect to the safekeeping of such Securities and
moneys to the same extent that the Custodian would be liable to the Fund if the
Custodian were holding such securities and moneys in New York. In the event of
any loss to the Fund by reason of the failure of the Custodian or a Subcustodian
to utilize reasonable care, the Custodian shall be liable to the Fund only to
the extent of the Fund's direct damages, to be determined based on the market
value of the Securities and moneys which are the subject of the loss at the date
of discovery of such loss and without reference to any special conditions or
circumstances.

      8. (b) The Custodian shall not be liable for any loss which results from
(i) the general risk of investing, or (ii) investing or holding Securities and
moneys in a particular country including, but not limited to, losses resulting
from nationalization, expropriation or other governmental actions; regulation of
the banking or securities industry; currency restrictions, devaluations or
fluctuations; or market conditions which prevent the orderly execution of
securities transactions or affect the value of Securities or moneys.

      8. (c) Neither party shall be liable to the other for any loss due to
forces beyond its control including, but not limited to, strikes or work
stoppages, acts of war or terrorism, insurrection, revolution, nuclear fusion,
fission or radiation, or acts of God."


<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed by their respective Officers, thereunto duly authorized and their
respective seals to be hereunto affixed, as of the day and year first above
written.

                           DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND


[SEAL]                        By:   David A. Hughey
                                  -----------------
                                    /s/David A. Hughey

Attest:

   Robert M. Scanlan
- --------------------
/s/Robert M. Scanlan


                              THE BANK OF NEW YORK


[SEAL]                        By:   Steven Grunston
                                  -----------------
                                    /s/Steven Grunston
Attest:

    Vincent Blazewicz
- ---------------------
/s/ Vincent Blazewicz


<PAGE>

                                   SCHEDULE A

COUNTRY/MARKET                      SUBCUSTODIAN
- --------------                      ------------
Argentina                           The Bank of Boston
Australia                           ANZ Banking Group Limited
Austria                             Girocredit Bank AG
Bangladesh*                         Standard Chartered Bank
Belgium                             Banque Bruxelles Lambert
Botswana*                           Stanbic Bank Botswana Ltd.
Brazil                              The Bank of Boston
Canada                              Royal Trust/Royal Bank of Canada
Chile                               The Bank of Boston/Banco de Chile
China                               Standard Chartered Bank
Colombia                            Citibank, N.A.
Denmark                             Den Danske Bank
Euromarket                          CEDEL
                                    Euroclear
                                    First Chicago Clearing Centre
Finland                             Union Bank of Finland
France                              Banque Paribas/Credit Commercial de
                                     France
Germany                             Dresdner Bank A.G.
Ghana*                              Merchant Bank Ghana Ltd.
Greece                              Alpha Credit Bank
Hong Kong                           Hong Kong and Shanghai Banking Corp.
Indonesia                           Hong Kong and Shanghai Banking Corp.
Ireland                             Allied Irish Bank
Israel                              Israel Discount Bank
Italy                               Banca Commerciale Italiana
Japan                               Yasuda Trust & Banking Co., Lt.
Korea                               Bank of Seoul
Luxembourg                          Kredietbank S.A.
Malaysia                            Hong Kong Bank Malaysia Berhad
Mexico                              Banco Nacional de Mexico (Banamex)
Netherlands                         Mees Pierson
New Zealnad                         ANZ Banking Group Limited
Norway                              Den Norske Bank
Pakistan                            Standard Chartered Bank
Peru                                Citibank, N.A.
Philippines                         Hong Kong and Shanghai Banking Corp.
Poland                              Bank Handlowy w Warsawie
Portugal                            Banco Comercial Portugues
Singapore                           United Overseas Bank
South Africa                        Standard Bank of South Africa Limited
Spain                               Banco Bilbao Vizcaya
Sri Lanka                           Standard Chartered Bank


<PAGE>

                                   SCHEDULE A

COUNTRY/MARKET                      SUBCUSTODIAN
- --------------                      ------------
Sweden                              Skandinaviska Enskilda Banken
Switzerland                         Union Bank of Switerzland
Taiwan                              Hong Kong and Shanghai Banking Corp.
Thailand                            Siam Commercial Bank
Turkey                              Citibank, N.A.
United Kingdom                      The Bank of New York
United States                       The Bank of New York
Uruguay                             The Bank of Boston
Venezuela                           Citibank N.A.
Zimbabwe*                           Stanbic Bank Zimbabwe Ltd.

*Not yet 17(f) 5 compliant


<PAGE>

CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the use in the Statement of Additional Information
constituting part of this Post-Effective Amendment No. 13 to the Registration
Statement on Form N-1A (the "Registration Statement") of our report dated
February 10, 1997, relating to the financial statements and financial highlights
of Dean Witter California Tax Free Income Fund, 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 reference to us under the heading "Financial Highlights" in
such Prospectus and to the references to us under the headings "Independent
Accountants" and "Experts" in such Statement of Additional Information.




PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York 10036
March 13, 1997





<PAGE>


                  SCHEDULE OF COMPUTATION OF YIELD QUOTATION
                  DEAN WITTER CALIFORNIA TAX-FREE INCOME FUND
                 FOR THE 30-DAY PERIOD ENDED DECEMBER 30, 1996


                        6
YIELD = 2{[((a-b)/cd)+1]-1}


Where: a = Dividends and interest earned during the period
       b = Expenses accrued for the period
       c = The average daily number of shares outstanding
           during the period that were entitled to receive
           dividends
       d = The maximum offering price per share on the last
           day of the period

                                                                  6
YIELD = 2{[((4,332,173.59-1,056,807.49)/77,475,960.478*12.57)+1]-1}

                            4.07%


                     TAX EQUIVALENT YIELD

TAX EQUIVALENT YIELD = SEC Yield - (1 - stated tax rate)
                     = 4.07%/(1-.4624)
                       7.57%



<PAGE>

                 SCHEDULE FOR COMPUTATIONS OF PERFORMANCE QUOTATIONS
                           CALIFORNIA TAX-FREE INCOME FUND



(A) AVERAGE ANNUAL TOTAL RETURNS (I.E. STANDARDIZED COMPUTATIONS)

                    _                              _
                   |        ______________________  |
FORMULA:           |       |                        |
                   |  /\ n |        ERV             |
            T  =   |    \  |   -------------        |  - 1
                   |     \ |         P              |
                   |      \|                        |
                   |_                              _|

          T = AVERAGE ANNUAL TOTAL RETURN
          n = NUMBER OF YEARS
         ERV = ENDING REDEEMABLE VALUE
          P = INITIAL INVESTMENT

                                                  (A)
  $1,000          ERV AS OF   NUMBER OF     AVERAGE ANNUAL
INVESTED - P      31-Dec-96   YEARS - n     TOTAL RETURN - T
- ------------      ----------   ---------     ----------------

  31-Dec-95         $982.60       1.00          -1.74%

  31-Dec-91       $1,314.00       5.00           5.61%

  31-Dec-86       $1,841.50      10.00           6.30%

(B) AVERAGE ANNUAL TOTAL RETURNS WITHOUT DEDUCTION FOR APPLICABLE
    SALES CHARGE  (NON STANDARD COMPUTATIONS)

(C) TOTAL RETURN WITHOUT DEDUCTION FOR APPLICABLE SALES CHARGE
    (NON STANDARD COMPUTATIONS)

                    _                              _
                   |        ______________________  |
FORMULA:           |       |                        |
                   |  /\ n |          EV            |
            t  =   |    \  |    -------------       |  - 1
                   |     \ |          P             |
                   |      \|                        |
                   |_                              _|
  
                  EV
      TR  =   ----------       - 1
                  P


      t = AVERAGE ANNUAL TOTAL RETURN
          (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
      n = NUMBER OF YEARS
     EV = ENDING VALUE (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
      P = INITIAL INVESTMENT
     TR = TOTAL RETURN (NO DEDUCTION FOR APPLICABLE SALES CHARGE)


                            (C)                              (B)
  $1,000       EV AS OF     TOTAL            NUMBER OF      AVERAGE ANNUAL
INVESTED - P  31-Dec-96    RETURN - TR      YEARS - n      TOTAL RETURN - t
- ----------     ---------    ------------     ----------    ----------------


31-Dec-95      $1,031.30       3.13%               1              3.13%

31-Dec-91      $1,334.00      33.40%               5              5.93%

31-Dec-86      $1,841.50      84.15%           10.00              6.30%

(E)      GROWTH OF $10,000
(F)      GROWTH OF $50,000
(G)      GROWTH OF $100,000

FORMULA: G= (TR+1)*P
         G= GROWTH OF INITIAL INVESTMENT
         P= INITIAL INVESTMENT
         TR= TOTAL RETURN SINCE INCEPTION

<TABLE>
<CAPTION>

                                          (E)                         (F)                           (G)
$10,000             TOTAL               GROWTH OF                    GROWTH OF                    GROWTH OF
INVESTED - P        RETURN - TR         $10,000 INVESTMENT - G       $50,000 INVESTMENT - G       $100,000  INVESTMENT - G
- -------------       -----------         ----------------------       -----------------------      ------------------------
<S>                 <C>                 <C>                          <C>                          <C>
11-Jul-84              177.92                 $27,792                       $138,960                     $277,920

</TABLE>



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<INVESTMENTS-AT-COST>                      922,241,053
<INVESTMENTS-AT-VALUE>                     972,302,130
<RECEIVABLES>                               14,917,324
<ASSETS-OTHER>                                 499,765
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             987,719,219
<PAYABLE-FOR-SECURITIES>                     6,884,447
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    5,132,567
<TOTAL-LIABILITIES>                         12,017,014
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   925,945,926
<SHARES-COMMON-STOCK>                       77,591,489
<SHARES-COMMON-PRIOR>                       81,657,631
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (304,798)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    50,061,077
<NET-ASSETS>                               975,702,205
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           59,806,976
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,212,234
<NET-INVESTMENT-INCOME>                     46,594,742
<REALIZED-GAINS-CURRENT>                     3,510,899
<APPREC-INCREASE-CURRENT>                 (20,341,641)
<NET-CHANGE-FROM-OPS>                       29,764,000
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                 (46,863,352)
<DISTRIBUTIONS-OF-GAINS>                  (11,233,171)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      6,335,468
<NUMBER-OF-SHARES-REDEEMED>               (12,976,452)
<SHARES-REINVESTED>                          2,574,842
<NET-CHANGE-IN-ASSETS>                    (79,178,688)
<ACCUMULATED-NII-PRIOR>                        268,610
<ACCUMULATED-GAINS-PRIOR>                    7,417,474
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        5,313,150
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,285,814
<AVERAGE-NET-ASSETS>                         1,000,627
<PER-SHARE-NAV-BEGIN>                            12.92
<PER-SHARE-NII>                                    .58
<PER-SHARE-GAIN-APPREC>                         (0.21)
<PER-SHARE-DIVIDEND>                             (.58)
<PER-SHARE-DISTRIBUTIONS>                        (.14)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.57
<EXPENSE-RATIO>                                   1.32
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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