EATON VANCE INVESTMENT TRUST
497, 1995-04-03
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<PAGE>
                  EV TRADITIONAL CALIFORNIA MUNICIPALS FUND
                     EV TRADITIONAL FLORIDA TAX FREE FUND
                   EV TRADITIONAL NATIONAL MUNICIPALS FUND
                    EV TRADITIONAL NEW YORK TAX FREE FUND
              SUPPLEMENT TO PROSPECTUSES DATED NOVEMBER 25, 1994

                      EATON VANCE INCOME FUND OF BOSTON
               SUPPLEMENT TO PROSPECTUS DATED FEBRUARY 1, 1995

    THE  FOLLOWING  SENTENCE  IS  ADDED TO "HOW TO BUY  FUND  SHARES"  IN THE EV
TRADITIONAL CALIFORNIA MUNICIPALS FUND, EV TRADITIONAL FLORIDA TAX FREE FUND, EV
TRADITIONAL  NATIONAL MUNICIPALS FUND, AND EV TRADITIONAL NEW YORK TAX FREE FUND
PROSPECTUSES:
        Fund  shares may be sold at net asset  value  where the amount  invested
        represents  redemption  proceeds  from a mutual fund  unaffiliated  with
        Eaton Vance,  if the  redemption  occurred no more than 60 days prior to
        the  purchase of Fund shares and the  redeemed  shares were subject to a
        sales charge.

    IN ADDITION,  THE FOLLOWING  CHANGES (1-5) APPLY TO FUND SHARES PURCHASED ON
OR AFTER MARCH 27, 1995:

    1. THE SHAREHOLDER TRANSACTION EXPENSES TABLE UNDER "SHAREHOLDER AND FUND
EXPENSES" IS REPLACED BY THE FOLLOWING TABLE:

      SHAREHOLDER TRANSACTION EXPENSES
        Maximum Sales Charge Imposed on Purchases
          (as a percentage of offering price)                              3.75%
        Sales Charges Imposed on Reinvested Distributions                   None
        Redemption Fees                                                     None
        Fees to Exchange Shares                                             None
        Contingent Deferred Sales Charges Imposed on Redemptions            None

        Based on the  Shareholder  Transaction  Expenses  shown above and on the
    total operating expenses shown in the relevant Prospectus, an investor would
    pay  expenses  $10 less than the expenses for one year and three years shown
    in the Example under "Shareholder and Fund Expenses".

    2. THE FIRST  PARAGRAPH  UNDER  "THE  EATON  VANCE  EXCHANGE  PRIVILEGE"  IS
REPLACED BY THE FOLLOWING PARAGRAPH:

            Shares of the Fund may  currently be exchanged  for shares of any of
        the  following  funds:  Eaton Vance Cash  Management  Fund,  Eaton Vance
        Income Fund of Boston, Eaton Vance Municipal Bond Fund L.P., Eaton Vance
        Tax Free Reserves and any fund in the Eaton Vance  Traditional  Group of
        Funds on the basis of the net asset  value per share of each fund at the
        time of the exchange  (plus,  in the case of an exchange made within six
        months of the date of purchase,  an amount equal to the  difference,  if
        any,  between  the sales  charge  previously  paid on the  shares  being
        exchanged  and the sales charge  payable on the shares being  acquired).
        Such exchange  offers are  available  only in states where shares of the
        fund being acquired may be legally sold.
<PAGE>
    3. THE SALES  CHARGE AND  DEALER  COMMISSION  TABLES  UNDER "HOW TO BUY FUND
SHARES" ARE REPLACED BY THE FOLLOWING TABLE:

        The current sales charges and dealer commissions are:

<TABLE>
<CAPTION>
                                       SALES CHARGE          SALES CHARGE        DEALER COMMISSION
                                     AS PERCENTAGE OF      AS PERCENTAGE OF      AS PERCENTAGE OF
  AMOUNT OF PURCHASE                  OFFERING PRICE       AMOUNT INVESTED        OFFERING PRICE
<S>                                  <C>                   <C>                   <C>
  Less than $50,000                       3.75%                 3.90%                  4.00%
  $50,000 but less than $100,000          2.75%                 2.83%                  3.00%
  $100,000 but less than $250,000         2.25%                 2.30%                  2.50%
  $250,000 but less than $500,000         1.75%                 1.78%                  2.00%
  $500,000 but less than
  $1,000,000                              1.25%                 1.27%                  1.50%
  $1,000,000 or more                      0.00%<F1>             0.00%<F1>              0.25%<F2>

<FN>
<F1> Fund shares  purchased  before March 27,  1995,  at net asset value with no
     initial sales charge by virtue of the purchase having been in the amount of
     $1 million or more may be subject to a  contingent  deferred  sales  charge
     upon redemption.
<F2> The Principal  Underwriter  may pay Authorized  Firms that initiate and are
     responsible  for  purchases of $1 million or more a commission at an annual
     rate of 0.25% of average daily net assets paid quarterly for one year.
</TABLE>

    4. IN THE  DESCRIPTIONS  OF THE  STATEMENT  OF  INTENTION  AND THE  RIGHT OF
ACCUMULATION UNDER "EATON VANCE SHAREHOLDER  SERVICES," THE $100,000 AMOUNTS ARE
REPLACED BY $50,000 AMOUNTS.

    5.  REFERENCES TO A CONTINGENT  DEFERRED SALES CHARGE OR "CDSC" DO NOT APPLY
TO FUND SHARES PURCHASED ON OR AFTER MARCH 27, 1995.

March 27, 1995                                                       T-11/94PS


<PAGE>

                  EV TRADITIONAL CALIFORNIA MUNICIPALS FUND

    EV  TRADITIONAL  CALIFORNIA  MUNICIPALS  FUND (THE  "FUND") IS A MUTUAL FUND
SEEKING TO PROVIDE  CURRENT  INCOME EXEMPT FROM BOTH THE REGULAR  FEDERAL INCOME
TAX AND THE  CALIFORNIA  PERSONAL  INCOME  TAX.  THE FUND  INVESTS ITS ASSETS IN
CALIFORNIA  TAX  FREE  PORTFOLIO  (THE  "PORTFOLIO"),   A  DIVERSIFIED  OPEN-END
INVESTMENT COMPANY HAVING THE SAME INVESTMENT OBJECTIVE AS THE FUND, RATHER THAN
BY DIRECTLY  INVESTING IN AND MANAGING ITS OWN  PORTFOLIO OF  SECURITIES AS WITH
HISTORICALLY  STRUCTURED  MUTUAL  FUNDS.  THE  FUND IS A SERIES  OF EATON  VANCE
INVESTMENT TRUST (THE "TRUST").

    Shares of the Fund are not  deposits or  obligations  of, or  guaranteed  or
endorsed  by,  any bank or other  insured  depository  institution,  and are not
federally  insured by the Federal  Deposit  Insurance  Corporation,  the Federal
Reserve  Board or any  other  government  agency.  Shares  of the  Fund  involve
investment risks,  including fluctuations in value and the possible loss of some
or all of the principal investment.

    This Prospectus is designed to provide you with  information you should know
before investing.  Please retain this document for future reference. A Statement
of Additional  Information dated November 25, 1994 for the Fund, as supplemented
from time to time, has been filed with the  Securities  and Exchange  Commission
and  is  incorporated   herein  by  reference.   This  Statement  of  Additional
Information is available  without charge from the Fund's Principal  Underwriter,
Eaton Vance Distributors,  Inc., 24 Federal Street,  Boston, MA 02110 (telephone
(800) 225-6265).  The Portfolio's  investment  adviser is Boston  Management and
Research (the "Investment  Adviser"),  a wholly-owned  subsidiary of Eaton Vance
Management,   and   Eaton   Vance   Management   is   the   administrator   (the
"Administrator")  of the Fund.  The  offices of the  Investment  Adviser and the
Administrator are located at 24 Federal Street, Boston, MA 02110.

- -------------------------------------------------------------------------------
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 PROS- PECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
- -------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                             TABLE OF CONTENTS
<S>                                               <C>    <S>                                              <C>
Shareholder and Fund Expenses ...................   2    How to Redeem Fund Shares ...................    18
The Fund's Financial Highlights .................   3    Reports to Shareholders .....................    20
The Fund's Investment Objective .................   4    The Lifetime Investing Account/Distribution
How the Fund and the Portfolio Invest their                Options ...................................    20
  Assets ........................................   4    The Eaton Vance Exchange Privilege ..........    21
Organization of the Fund and the Portfolio ......  11    Eaton Vance Shareholder Services ............    22
Management of the Fund and the Portfolio ........  14    Distributions and Taxes .....................    23
Service Plan ....................................  15    Performance Information .....................    24
Valuing Fund Shares .............................  16    Statement of Intention and Escrow Agreement .    25
How to Buy Fund Shares ..........................  16      
</TABLE>
- ------------------------------------------------------------------------------
                      PROSPECTUS DATED NOVEMBER 25, 1994
<PAGE>
SHAREHOLDER AND FUND EXPENSES (1)
- ------------------------------------------------------------------------------
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed on Purchases (as
  a percentage of offering price)                                        4.75%
Sales Charges Imposed on Reinvested Distributions                        None
Redemption Fees                                                          None
Fees to Exchange Shares                                                  None

Contingent  Deferred  Sales  Charges  (on  purchases  of $ 1
  million or more) Imposed on  Redemptions  During the First
  Eighteen  Months (as a percentage of  redemption  proceeds
  exclusive of all reinvestments and capital appreciation in
  the account)(2)                                                       1.00%

ANNUAL FUND AND ALLOCATED PORTFOLIO OPERATING EXPENSES
(as a percentage of average net assets)
  Investment Adviser Fee(3)                                             0.50%
  Rule 12b-1 Fees (Service Plan)                                        0.05
  Other Expenses                                                        0.20
                                                                        ----
    Total Operating Expenses                                            0.75%
                                                                        ====

EXAMPLE                                                        1 YEAR   3 YEARS
                                                               ------   -------

An  investor  would pay the  following  expenses  (including
initial  maximum  sales  charge)  on  a  $1,000  investment,
assuming (a) 5% annual return and (b)  redemption at the end
of each time period:

                                                                $55        $70

Notes:

(1) The  purpose of the above table and Example is to  summarize  the  aggregate
    expenses  of  the  Fund  and  the  Portfolio  and  to  assist  investors  in
    understanding the various costs and expenses that investors in the Fund will
    bear  directly or  indirectly.  The Trustees of the Trust  believe that over
    time the aggregate per share  expenses of the Fund and the Portfolio  should
    be approximately  equal to the per share expenses which the Fund would incur
    if the Trust  retained the services of an investment  adviser and the assets
    of the Fund were invested  directly in the type of securities  being held by
    the  Portfolio.  Since  the Fund  does not yet have a  sufficient  operating
    history,  the percentages  indicated as Annual Fund and Allocated  Portfolio
    Operating  Expenses and the amounts included in the Example are based on the
    Fund's and  Portfolio's  projected  fees and expenses for the current fiscal
    year  ending  September  30,  1995.  The table  and  Example  should  not be
    considered a representation  of future expenses since future expenses may be
    greater or less than those  shown.  For further  information  regarding  the
    expenses  of both the  Fund and the  Portfolio  see  "The  Fund's  Financial
    Highlights,"  "Organization  of the Fund and the Portfolio,"  "Management of
    the Fund and the Portfolio", "Service Plan" and "How to Redeem Fund Shares."
    Other investment companies with different distribution arrangements and fees
    are investing in the Portfolio and  additional  such  companies may do so in
    the future. See "Organization of the Fund and the Portfolio."
(2) If shares of the Fund are purchased at net asset value with no initial sales
    charge by virtue of the purchase  having been in the amount of $1 million or
    more and are redeemed  within 18 months after the end of the calendar  month
    in which the purchase was made,  a  contingent  deferred  sales charge of 1%
    will be imposed on such  redemption.  See "How to Buy Fund  Shares," "How to
    Redeem Fund Shares" and "Eaton Vance Shareholder Services."
(3) The  Portfolio's  monthly  advisory fee has two  components,  a fee based on
    daily net assets and a fee based on daily gross income,  as set forth in the
    fee schedule on page 14.

<PAGE>
THE FUND'S FINANCIAL HIGHLIGHTS
- ------------------------------------------------------------------------------
The  following  information  should be read in  conjunction  with the  financial
statements included in the Statement of Additional Information, all of which has
been so included in reliance upon reports of Deloitte & Touche LLP,  independent
certified  public  accountants,  as experts in accounting and auditing.  Further
information  regarding  the  performance  of the Fund will be  contained  in the
Fund's annual report to  shareholders  which may be obtained  without  charge by
contacting the Fund's Principal Underwriter, Eaton Vance Distributors, Inc.
- ------------------------------------------------------------------------------
FOR THE PERIOD FROM THE START OF BUSINESS, MAY 27, 1994, TO SEPTEMBER 30, 1994

NET ASSET VALUE, beginning of period ...........................    $  10.000
                                                                    ---------
Income from operations:
    Net investment income ......................................    $   0.209
    Net realized and unrealized loss on investments ............       (0.158)++
                                                                    ---------
      Total income from operations .............................    $   0.051
                                                                    ---------
LESS DISTRIBUTIONS:
    From net investment income .................................    $  (0.209)
    In excess of net investment income .........................       (0.002)
                                                                    ---------
      Total distributions ......................................    $  (0.211)
                                                                    ---------
NET ASSET VALUE, end of period .................................    $   9.84
                                                                    =========
TOTAL RETURN(2) ................................................        0.50%
RATIOS/SUPPLEMENTAL DATA*:
    Net assets, end of period (000 omitted) ....................     $  3,101
    Ratio of net expenses to average net assets(1) .............        0.54%+
    Ratio of net investment income to average net assets .......        5.60%+

 * For the period from the start of  business,  May 27, 1994,  to September  30,
   1994, the operating expenses of the Fund reflect an allocation of expenses to
   the Administrator.  Had such action not been taken, net investment income per
   share and the ratios would have been as follows:

NET INVESTMENT INCOME PER SHARE ................................    $  0.158
                                                                    =========
RATIOS (As a percentage of average net assets):
    Expenses(1).................................................       1.92%+
    Net investment income ......................................       4.22%+

+   Computed on an annualized basis.

++  The per share amount is not in accord with the net  realized and  unrealized
    gians and  losses  for the  period  because  of the  timing of sales of Fund
    shares and the amount of per share realized and unrealized  gains and losses
    at such time.


(1) Includes the Fund's share of its California Tax Free  Portfolio's  allocated
    expenses.
(2) Total return is calculated assuming a purchase at the net asset value on the
    first day and a sale at the net asset  value on the last day of each  period
    reported. Dividends and distributions,  if any, are assumed to be reinvested
    at the net asset value on the payable date.

<PAGE>
THE FUND'S INVESTMENT OBJECTIVE
- ------------------------------------------------------------------------------

The Fund's  investment  objective is to provide  current income exempt from both
the regular Federal income tax and the California  personal income tax. The Fund
seeks to meet its investment objective by investing its assets in the California
Tax Free Portfolio (the "Portfolio"),  a separate registered  investment company
which invests primarily in a diversified portfolio of California obligations (as
defined  below)  which are  rated at least  investment  grade by a major  rating
agency or, if unrated,  determined to be of at least investment grade quality by
the Investment Adviser.

HOW THE FUND AND THE PORTFOLIO INVEST THEIR ASSETS
- ------------------------------------------------------------------------------
The Fund seeks to achieve its investment  objective by investing either directly
or indirectly through another open-end  management  investment company primarily
(i.e., at least 80% of its assets during periods of normal market conditions) in
debt  obligations  issued by or on behalf  of the  State of  California  and its
political  subdivisions,  the  interest on which is exempt from both the regular
Federal  income  tax  and  the  California   personal  income  tax  ("California
obligations").  The foregoing  policy is a  fundamental  policy which may not be
changed  unless  authorized  by a vote  of the  shareholders  of the  Fund.  The
Portfolio  seeks to achieve its  investment  objective  by  investing  primarily
(i.e., at least 80% of its assets during periods of normal market conditions) in
debt  obligations  issued by or on behalf  of the  State of  California  and its
political  subdivisions,  the interest on which is exempt from  regular  Federal
income tax, is not a tax preference item under the Federal  alternative  minimum
tax and is exempt from the California  personal income tax. The foregoing policy
is a  fundamental  policy  of the  Portfolio  which  may not be  changed  unless
authorized by a vote of the investors in the Portfolio.

    At least 75% of the  Portfolio's  net assets  will  normally  be invested in
obligations rated at least investment grade (which are those rated Baa or higher
by  Moody's  Investors  Service,  Inc.  ("Moody's")  or BBB or  higher by either
Standard  & Poor's  Ratings  Group  ("S&P")  or Fitch  Investors  Service,  Inc.
("Fitch"))  or, if unrated,  determined  by the  Investment  Adviser to be of at
least investment grade quality. California obligations rated Baa or BBB may have
speculative  characteristics.  Also,  changes in  economic  conditions  or other
circumstances  are more likely to lead to a weakened  capacity to make principal
and  interest  payments  than  in the  case of  higher  rated  obligations.  The
Portfolio may invest up to 25% of its net assets in California obligations rated
below  investment  grade  (but not lower  than B by  Moody's,  S&P or Fitch) and
unrated  California  obligations  considered to be of comparable  quality by the
Investment  Adviser.  Securities  rated below BBB or Baa are  commonly  known as
"junk  bonds".  See  "Credit  Quality --  Risks."  The  Portfolio  may retain an
obligation whose rating drops below B after its acquisition if such retention is
considered  desirable by the Investment  Adviser;  provided,  however,  that the
Portfolio's holdings of obligations rated below investment grade will not exceed
35% of its net assets. For a description of municipal  obligation  ratings,  see
the  Fund's  Statement  of  Additional   Information.

CALIFORNIA   OBLIGATIONS.   California  obligations  include  bonds,  notes  and
commercial  paper issued by a municipality for a wide variety of both public and
private purposes.  Public purpose municipal bonds include general obligation and
revenue bonds.  General  obligation  bonds are backed by the taxing power of the
issuing  municipality.  Revenue bonds are backed by the revenues of a project or
facility. Municipal notes include bond anticipation,  tax anticipation,  revenue
anticipation and  construction  loan notes.  Bond, tax and revenue  anticipation
notes are  short-term  obligations  that will be retired with the proceeds of an
anticipated  bond  issue,  tax  revenue  or  facility   revenue,   respectively.
Construction loan notes are short-term obligations that will be retired with the
proceeds of long-term mortgage  financing.  Under normal market conditions,  the
Portfolio will invest at least 65% of its total assets in obligations  issued by
California or its political subdivisions.

    Interest on certain "private  activity bonds" issued after August 7, 1986 is
exempt  from the regular  Federal  income tax  applicable  to  individuals  (and
corporations),  but such interest  (including a distribution by the Fund derived
from such interest) is treated as a tax preference  item which could subject the
recipient to or increase his liability for the Federal  alternative minimum tax;
as at September 30, 1994, the Portfolio had 12.7% of its net assets  invested in
such private  activity bonds.  The Portfolio may not invest more than 20% of its
assets in these obligations and obligations that pay interest subject to regular
Federal  income tax and/or  California  personal  income  taxes.  For  corporate
shareholders,  the Fund's  distributions  derived from interest on all municipal
obligations  (whenever  issued) is included in "adjusted  current  earnings" for
purposes of the Federal alternative minimum tax applicable to corporations.

    The Omnibus Budget Reconciliation Act of 1993 changed the federal income tax
treatment  of market  discount on  long-term  tax-exempt  municipal  obligations
(i.e., obligations with a term of more than one year) purchased in the secondary
market  after  April 30,  1993 from  taxable  capital  gain to taxable  ordinary
income. A long-term debt obligation is generally treated as acquired at a market
discount  if the  secondary  market  purchase  price is less than (i) the stated
principal amount payable at maturity, in the case of an obligation that does not
have original issue discount or (ii) in the case of an obligation that does have
original  issue  discount,  the sum of the issue  price and any  original  issue
discount that accrued before the  obligation  was  purchased.  The Portfolio may
acquire  municipal  obligations at a market  discount from time to time, and the
Fund's  distributions  will (when so required) include taxable income reflecting
the realization of such accrued  discount by the Portfolio and its allocation to
the Fund.

MATURITY.  It is expected that the Portfolio will normally  contain  substantial
amounts of long-term California obligations with maturities of ten years or more
because  such  long-term   obligations  generally  produce  higher  income  than
short-term  obligations.  Such  long-term  obligations  are more  susceptible to
market  fluctuations  resulting from changes in interest rates than shorter term
obligations.  Since the Portfolio's  objective is to provide current income, the
Portfolio will invest in California  obligations  with an emphasis on income and
not on stability of the Portfolio's net asset value. The average maturity of the
Portfolio's  holdings may vary (generally  between 15 and 30 years) depending on
anticipated market conditions.

    Although the Portfolio will normally attempt to invest  substantially all of
its assets in California  obligations,  the Portfolio  may,  under normal market
conditions,  invest  up to 20% of  its  assets  in  short-term  obligations  the
interest on which is subject to regular Federal income tax, Federal  alternative
minimum tax and/or  California  personal income taxes.  Such short-term  taxable
obligations  may  include,  but are not  limited  to,  certificates  of deposit,
commercial paper,  short-term notes and obligations  issued or guaranteed by the
U.S. Government or any of its agencies or  instrumentalities.  During periods of
adverse market conditions, the Portfolio may temporarily invest more than 20% of
its assets in such short-term taxable obligations,  which will be rated no lower
than  investment  grade.

DIVERSIFIED  STATUS.  The Portfolio is a "diversified"  investment company under
the Investment  Company Act of 1940.  This means that with respect to 75% of its
total assets (1) the  Portfolio  may not invest more than 5% of its total assets
in the securities of any one issuer (except U.S. Government obligations) and (2)
the Portfolio may not own more than 10% of the outstanding  voting securities of
any one issuer. Since California obligations are not voting securities, there is
no limit on the percentage of a single issuer's  obligations which the Portfolio
may own so long as it does not  invest  more than 5% of its total  assets in the
securities of that issuer.  Consequently,  the Portfolio may invest in a greater
percentage  of the  outstanding  securities  of a single  issuer  than  would an
investment company which invests in voting securities.  As for the remaining 25%
of the Portfolio's total assets not subject to the limitations  described above,
there is no  diversification  requirement with respect to these assets,  so that
all of such assets may be invested in the securities of any one issuer.  Because
of the  relatively  small  number  of  issues  of  California  obligations,  the
Portfolio  is  likely  to  invest a  greater  percentage  of its  assets  in the
securities of a single  issuer than is an investment  company which invests in a
broad range of municipal  obligations.  To the extent that the Portfolio is less
diversified  than that of other  investment  companies,  it may be subject to an
increased  risk of loss if the issuer is unable to make  interest  or  principal
payments or if the market value of such securities declines.

CONCENTRATION.  The Portfolio may invest 25% or more of its assets in California
obligations  of the same  type,  including  without  limitation  the  following:
general  obligations of the State of California and its political  subdivisions,
lease rental  obligations of State and local  authorities,  obligations of State
and local housing finance  authorities,  municipal  utilities  systems or public
housing  authorities;  obligations  for  hospitals or life care  facilities;  or
industrial  development or pollution  control bonds issued for electric  utility
systems, steel companies,  paper companies or other purposes.  This may make the
Portfolio  more  susceptible  to  adverse  economic,  political,  or  regulatory
occurrences  affecting a particular  category of issuers.  For  example,  health
care-related  issuers are  susceptible  to medicaid  reimbursement  policies and
national or state health care legislation.  As the Portfolio's  concentration in
the securities of a particular  category of issuer increases,  the potential for
fluctuation in the value of the Fund's shares also increases.

CONCENTRATION  IN  CALIFORNIA  ISSUES  --  RISKS.  Because  the  Portfolio  will
ordinarily  invest 80% or more of its assets in  California  obligations,  it is
more susceptible to factors  affecting  California  issuers than is a comparable
municipal bond fund not  concentrated in the obligations of issuers located in a
single state.

    California has  experienced  severe economic and fiscal stress over the past
four years. The recession that began in the U.S. in 1990 marked the start of the
deepest  recession in California  since the Great  Depression.  Between 1990 and
1993,  California lost 3% of its total  employment base and nearly 16% of higher
paying  manufacturing  jobs. This was during a period when population  increased
6%. The unemployment  rate in California was 9.1% in 1992 and 9.2% in 1993, well
above  the U.S.  rates of 7.4%  and  6.8%  for the same  periods,  respectively.
California's economic weakness has continued into 1994; unemployment was 8.3% in
May, compared to a U.S. rate of 6%.

    The weak  economy  has  seriously  undermined  the  government's  ability to
accurately  estimate tax revenues and has increased social service  expenditures
for recession-related  welfare case loads. In addition,  the continued influx of
illegal immigrants has strained the State's welfare and health care systems. The
result of these various problems is a $2 billion  accumulated budget deficit and
a heavy reliance on short-term borrowing for day-to-day  operations.  Short-term
borrowing  increased from 7.8% of general fund receipts in 1990 to 12.4% in 1992
to a  projected  16% in 1995.  In July,  1994,  the State  issued $7  billion in
short-term debt, an unprecedented amount for a state.

    The $2 billion budget deficit built up during the 1991 and 1992 fiscal years
was not  adequately  addressed  during the 1993 or 1994 fiscal years,  despite a
Deficit Retirement and Reduction Plan put in place in June, 1993. The budget for
fiscal  year 1995  (which  commenced  on July 1,  1994)  includes  general  fund
expenditures  of $40.9 billion,  a 4.2% increase over 1993-94,  and general fund
revenues of $41.9 billion,  a 5.2% increase.  A revised  Deficit  Retirement and
Reduction Plan was adopted which  anticipated  the elimination of the deficit by
April,  1996. Key to this revised plan is the assumed receipt of $2.8 billion in
Federal aid from the Federal  government to offset the mounting costs associated
with illegal immigrants. As this money is in no way assured, the budget includes
a "trigger"  mechanism that would require automatic  spending cuts should actual
cash flow deviate  significantly  from  projections.  There can be no assurances
that bonds,  some of which may be held by the  Portfolio,  issued by  California
entities would not be adversely affected should this "trigger" be used.

    On January 17, 1994, a major earthquake  struck the Los Angeles area causing
significant  property  damage.  Preliminary  estimates of total property  damage
approximate  $15 billion.  The Federal  government has approved $9.5 billion for
earthquake  relief.  The Governor has estimated  that the State will have to pay
approximately  $1.9 billion for relief not otherwise covered by the Federal aid.
The Governor had proposed to cover $1.05  billion of relief costs from a general
obligation  bond issue,  but that proposal was rejected by California  voters in
June 1994. The Governor  subsequently  announced that funds  earmarked for other
projects would be used for earthquake relief.

    California  voters have approved a series of  amendments  to the  California
State  constitution which have imposed certain limits on the taxing and spending
powers of the State and local  governments.  While the State legislature has, in
the past, enacted  legislation  designed to assist California issuers in meeting
their debt service  obligations,  other laws  limiting the State's  authority to
provide  financial  assistance to localities have also been enacted.  Because of
the  uncertain  impact  of such  constitutional  amendments  and  statutes,  the
possible  inconsistencies  in their  respective  terms and the  impossibility of
predicting  the level of future  appropriations  and  applicability  of  related
statutes to such questions, it is not currently possible to assess the impact of
such  legislation  and  policies  on the  ability of  California  issuers to pay
interest or repay principal on their obligations.

    As of the date of this Prospectus,  as a result of the significant  economic
and fiscal problems described above, the State's debt has been downgraded by all
three rating agencies from Aa to A by Moody's,  from A+ to A by S&P, and from AA
to A by Fitch.  There can be no assurance that the economic  conditions on which
these ratings are based will continue or that  particular bond issues may not be
adversely affected by changes in economic, political or other conditions.

    California obligations also include obligations of the governments of Puerto
Rico, the U.S. Virgin Islands and Guam to the extent that these  obligations are
exempt from California personal income taxes. The Portfolio will not invest more
than 5% of its net assets in the  obligations of each of the U.S. Virgin Islands
and Guam,  and under normal  circumstances  the Portfolio will not invest in the
aggregate  more than 20% of its assets in  obligations  of Puerto Rico, the U.S.
Virgin Islands and Guam. Accordingly, the Portfolio may be adversely affected by
local  political and economic  conditions  and  developments  within Puerto Rico
affecting  the issuers of such  obligations.  Currently,  S&P rates  Puerto Rico
general  obligation debt A, while Moody's rates it Baa1; these ratings have been
in place  since  1956 and  1976,  respectively.  The  reliance  on  nonrecurring
revenues  and economic  weakness led S&P to change their  outlook from stable to
negative.  The  economy of Puerto Rico is  dominated  by the  manufacturing  and
service sectors. Although the economy of Puerto Rico expanded significantly from
fiscal 1984 through fiscal 1990, the rate of this expansion slowed during fiscal
1992,  1993 and 1994.  Growth in fiscal  1994 will  depend on  several  factors,
including the state of the U.S. economy and the relative  stability in the price
of oil, the exchange rate of the U.S. dollar and the cost of borrowing. Although
the Puerto Rico  unemployment  rate has declined  substantially  since 1985, the
seasonally adjusted  unemployment rate for August, 1994 was approximately 14.5%.
The North American Free Trade Agreement (NAFTA),  which became effective January
1,  1994,  could  lead to the loss of  Puerto  Rico's  lower  salaried  or labor
intensive  jobs to  Mexico.

MUNICIPAL   LEASES.   The   Portfolio   may  invest  in  municipal   leases  and
participations  therein,  which  arrangements  frequently involve special risks.
Municipal leases are obligations in the form of a lease or installment  purchase
arrangement  which is  entered  into by a state or local  government  to acquire
equipment and  facilities.  Interest  income from such  obligations is generally
exempt from local and state taxes in the state of issuance.  "Participations" in
such  leases  are  undivided  interests  in a portion  of the total  obligation.
Participations entitle their holders to receive a pro rata share of all payments
under the lease. A trustee is usually responsible for administering the terms of
the  participation  and enforcing  the  participants'  rights in the  underlying
lease.  Leases and  installment  purchase or conditional  sale contracts  (which
normally  provide  for  title  to the  leased  asset to pass  eventually  to the
governmental issuer) have evolved as a means for governmental issuers to acquire
property  and  equipment  without  meeting  the   constitutional  and  statutory
requirements  for the  issuance of debt.  State  debt-issuance  limitations  are
deemed to be inapplicable to these arrangements because of the inclusion in many
leases  or  contracts  of  "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 a yearly or other periodic basis.  Such  arrangements  are,
therefore, subject to the risk that the governmental issuer will not appropriate
funds for lease payments.

    Certain  municipal  lease  obligations  owned by the Portfolio may be deemed
illiquid for purposes of the Portfolio's 15% limitation on investing in illiquid
securities,  unless determined by the Investment Adviser, pursuant to guidelines
adopted  by the  Trustees  of the  Portfolio,  to be liquid  securities  for the
purpose of such  limitation.  In  determining  the liquidity of municipal  lease
obligations,   the  Investment  Adviser  will  consider  a  variety  of  factors
including:  (1) the  willingness  of  dealers to bid for the  security;  (2) the
number of dealers  willing to purchase or sell the  obligation and the number of
other  potential  buyers;  (3)  the  frequency  of  trades  and  quotes  for the
obligation;  and (4) the nature of the  marketplace  trades.  In  addition,  the
Investment  Adviser will consider factors unique to particular lease obligations
affecting the marketability thereof. These include the general  creditworthiness
of the municipality,  the importance of the property covered by the lease to the
municipality,  and the likelihood that the  marketability of the obligation will
be maintained  throughout the time the  obligation is held by the Portfolio.  In
the event the Portfolio  acquires an unrated  municipal  lease  obligation,  the
Investment  Adviser will be responsible  for  determining  the credit quality of
such  obligation on an ongoing basis,  including an assessment of the likelihood
that the lease may or may not be cancelled.

- --------------------------------------------------------------------------------
  THE  FUND  AND THE  PORTFOLIO  HAVE  ADOPTED  CERTAIN  FUNDAMENTAL  INVESTMENT
  RESTRICTIONS  WHICH ARE  ENUMERATED  IN DETAIL IN THE  STATEMENT OF ADDITIONAL
  INFORMATION  AND WHICH MAY NOT BE CHANGED  UNLESS  AUTHORIZED BY A SHAREHOLDER
  VOTE AND INVESTOR VOTE, RESPECTIVELY.  EXCEPT FOR SUCH ENUMERATED RESTRICTIONS
  AND AS OTHERWISE  INDICATED IN THIS  PROSPECTUS THE  INVESTMENT  OBJECTIVE AND
  POLICIES  OF THE FUND  AND THE  PORTFOLIO  ARE NOT  FUNDAMENTAL  POLICIES  AND
  ACCORDINGLY  MAY BE CHANGED  BY THE  TRUSTEES  OF THE TRUST AND THE  PORTFOLIO
  WITHOUT OBTAINING THE APPROVAL OF THE FUND'S  SHAREHOLDERS OR OF THE INVESTORS
  IN THE  PORTFOLIO,  AS THE CASE MAY BE. IF ANY CHANGES WERE MADE IN THE FUND'S
  INVESTMENT OBJECTIVE, THE FUND MIGHT HAVE INVESTMENT OBJECTIVES DIFFERENT FROM
  THE  OBJECTIVE  WHICH  AN  INVESTOR  CONSIDERED  APPROPRIATE  AT THE  TIME THE
  INVESTOR BECAME A SHAREHOLDER IN THE FUND.
- --------------------------------------------------------------------------------

ZERO COUPON BONDS. The Portfolio may invest in zero coupon bonds, which are debt
obligations  that do not require the periodic payment of interest and are issued
at a significant  discount from their face value. Such bonds experience  greater
volatility  in  market  value  due  to  changes  in  interest  rates  than  debt
obligations  that provide for regular  payments of interest.  The Portfolio will
accrue income on such bonds for tax and accounting  purposes in accordance  with
applicable law, the Fund's  proportionate share of which income is distributable
to shareholders. Because no cash is received at the time such income is accrued,
the  Portfolio  may be required  to  liquidate  other  portfolio  securities  to
generate  cash that the Fund may  withdraw  from the  Portfolio  to satisfy  the
Fund's distribution  obligations.

INVERSE  FLOATERS.  The  Portfolio  may  invest in various  types of  derivative
municipal  securities  whose interest rates bear an inverse  relationship to the
interest rate on another security or the value of an index ("inverse floaters").
Derivatives  are  securities  that provide for payments based on or derived from
the performance of an underlying asset,  index or other economic  benchmark.  An
investment  in derivative  instruments,  such as inverse  floaters,  may involve
greater risk than an  investment  in a fixed rate bond.  Because  changes in the
interest  rate on the other  security  or index  inversely  affect the  residual
interest  paid on the  inverse  floater,  the  value of an  inverse  floater  is
generally  more volatile than that of a fixed rate bond.  Inverse  floaters have
interest rate  adjustment  formulas which  generally  reduce or, in the extreme,
eliminate the interest  paid to the Portfolio  when  short-term  interest  rates
rise, and increase the interest paid to the Portfolio when  short-term  interest
rates fall.  Inverse floaters have varying degrees of liquidity,  and the market
for these  securities is new and relatively  volatile.  These securities tend to
underperform  the  market  for  fixed  rate  bonds  in a  rising  interest  rate
environment,  but tend to  outperform  the  market  for fixed  rate  bonds  when
interest  rates  decline.  Shifts in  long-term  interest  rates may alter  this
tendency,  however.  Although  volatile,  inverse  floaters  typically offer the
potential  for yields  exceeding  the yields  available on fixed rate bonds with
comparable  credit  quality and maturity.  These  securities  usually permit the
investor  to  convert  the  floating  rate to a fixed  rate  (normally  adjusted
downward),  and this  optional  conversion  feature may provide a partial  hedge
against  rising rates if exercised at an opportune  time.  Inverse  floaters are
leveraged  because they provide two or more dollars of bond market  exposure for
every dollar invested.

CREDIT QUALITY -- RISKS. Many California obligations offering the current income
sought by the  Portfolio  are in the lowest  investment  grade  category (Baa or
BBB), lower categories or may be unrated.  As indicated above, the Portfolio may
invest in municipal obligations rated below investment grade (but not lower than
B by  Moody's,  S&P or Fitch) and  comparable  unrated  obligations.  The lowest
investment grade,  lower rated and comparable  unrated municipal  obligations in
which the Portfolio may invest will have speculative  characteristics in varying
degrees.   While  such   obligations   may  have  some  quality  and  protective
characteristics,   these  characteristics  can  be  expected  to  be  offset  or
outweighed by uncertainties or major risk exposures to adverse conditions. Lower
rated and comparable unrated municipal obligations are subject to the risk of an
issuer's  inability to meet principal and interest  payments on the  obligations
(credit risk) and may also be subject to price volatility due to such factors as
interest rate  sensitivity,  market  perception of the  creditworthiness  of the
issuer and  general  market  liquidity  (market  risk).  Lower  rated or unrated
municipal  obligations  are also  more  likely  to  react  to real or  perceived
developments  affecting  market  and  credit  risk  than are more  highly  rated
obligations, which react primarily to movements in the general level of interest
rates. The Portfolio may retain defaulted obligations in its portfolio when such
retention is  considered  desirable by the  Investment  Adviser.  In the case of
defaulted  obligation,  the  Portfolio  may  incur  additional  expense  seeking
recovery of its investment.  For a description of municipal  obligation ratings,
see the Statement of Additional Information

INSURED  OBLIGATIONS.  The  Portfolio  may  purchase  municipal  bonds  that are
additionally secured by insurance,  bank credit agreements,  or escrow accounts.
The credit  quality of companies  which  provide such credit  enhancements  will
affect the value of those  securities.  Although the insurance  feature  reduces
certain  financial risks, the premiums for insurance and the higher market price
paid for insured  obligations  may reduce the Fund's  current  yield.  Insurance
generally will be obtained from insurers with a claims-paying  ability rated Aaa
by Moody's or AAA by S&P or Fitch.  The insurance  does not guarantee the market
value of the insured obligations or the net asset value of the Fund's shares.

MARKET  CONDITIONS.  The management of the Portfolio  believes that, in general,
the secondary  market for  California  obligations  (including  issues which are
privately  placed with the  Portfolio) is less liquid than that for taxable debt
obligations  or for  large  issues  of  municipal  obligations  that  trade in a
national  market.  No  established  resale  market  exists  for  certain  of the
California  obligations  in which the  Portfolio  may  invest.  The  market  for
obligations  rated below  investment grade is also likely to be less liquid than
the market for higher rated obligations.  These  considerations may restrict the
availability  of such  obligations,  may affect the choice of securities sold to
meet  redemption  requests  and may limit  the  Portfolio's  ability  to sell or
dispose of such  securities.  Also,  valuation of such  obligations  may be more
difficult.

NET ASSET  VALUE  FLUCTUATION.  The net asset  value of the Fund will  change in
response to fluctuations  in prevailing  interest rates and changes in the value
of the securities held by the Portfolio.  When interest rates decline, the value
of securities  held by the Portfolio can be expected to rise.  Conversely,  when
interest rates rise, the value of existing  portfolio  security  holdings can be
expected to decline.  Therefore,  an  investment  in shares of the Fund will not
constitute a complete investment program.

SHORT-TERM  TRADING.  The Portfolio may sell  securities  in  anticipation  of a
market decline (a rise in interest  rates) or purchase and later sell securities
in anticipation of a market rise (a decline in interest rates).  In addition,  a
security  may be sold and another  purchased at  approximately  the same time to
take advantage of what the Portfolio believes to be a temporary disparity in the
normal yield  relationship  between the two  securities.  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 California  obligations  or changes in
the investment objectives of investors. Such trading may be expected to increase
portfolio  turnover  rate and the  expenses  incurred  in  connection  with such
trading. The Portfolio  anticipates that its annual portfolio turnover rate will
generally not exceed 100% (excluding turnover of securities having a maturity of
one year or less).

WHEN-ISSUED  SECURITIES.  The  Portfolio  may  purchase  securities  on a "when-
issued"  basis,  which  means  that  payment  and  delivery  occur  on a  future
settlement  date. The price and yield of such  securities are generally fixed on
the date of commitment to purchase.  However, the market value of the securities
may fluctuate  prior to delivery and upon delivery the  securities  may be worth
more or less than the Portfolio  agreed to pay for them.  The Portfolio will not
accrue income in respect of a when-issued  security prior to its stated delivery
date. The Portfolio will maintain in a segregated  account  sufficient assets to
cover its outstanding purchase obligations.

SECURITIES  LENDING.  The  Portfolio  may seek to increase its income by lending
portfolio securities to broker-dealers or other institutional  borrowers.  Under
present  regulatory  policies of the  Securities  and Exchange  Commission  (the
"Commission"),  such loans are required to be secured continuously by collateral
in cash, cash equivalents or U.S. Government  securities held by the Portfolio's
custodian  and  maintained on a current basis at an amount at least equal to the
market value of the  securities  loaned,  which will be marked to market  daily.
Cash equivalents  include  short-term  municipal  obligations as well as taxable
certificates  of deposit,  commercial  paper and other  short-term  money market
instruments.  The  Portfolio  would have the right to call a loan and obtain the
securities  loaned at any time on up to five business  days' notice.  During the
existence of a loan,  the Portfolio  will continue to receive the  equivalent of
the interest paid by the issuer on the securities loaned and will also receive a
fee, or all or a portion of the interest on  investment  of the  collateral,  if
any.  However,  the  Portfolio  may pay  lending  fees to  such  borrowers.  The
Portfolio  would not have the right to vote any securities  having voting rights
during the existence of the loan, but would call the loan in  anticipation of an
important  vote to be taken  among  holders of the  securities  or the giving or
withholding of their consent on a material matter  affecting the investment.  As
with other  extensions  of credit  there are risks of delay in  recovery or even
loss of rights in the securities  loaned if the borrower of the securities fails
financially. However, the loans will be made only to organizations deemed by the
Portfolio's  management  to be of good standing and when, in the judgment of the
Portfolio's  management,  the consideration  which can be earned from securities
loans of this type justifies the attendant  risk.  Distributions  by the Fund of
any income realized by the Portfolio from securities  loans will be taxable.  If
the management of the Portfolio decides to make securities loans, it is intended
that the value of the securities  loaned would not exceed 30% of the Portfolio's
total assets.

FUTURES AND OPTIONS  TRANSACTIONS.  To hedge against  changes in interest rates,
the  Portfolio  may purchase and sell various  kinds of futures  contracts,  and
purchase and write call and put options on futures contracts.  The Portfolio may
also enter into  closing  purchase  and sale  transactions  with respect to such
contracts  and  options.  The  futures  contracts  may be based on various  debt
securities (such as U.S.  Government  securities),  securities indices and other
financial  instruments  and indices.  The Portfolio  would engage in futures and
related options  transactions  for bona fide hedging or non-hedging  purposes as
defined  in  regulations  of  the  Commodity  Futures  Trading  Commission.  The
Portfolio  will engage in such  transactions  for  non-hedging  purposes only in
order to  enhance  total  return by using a  futures  position  as a lower  cost
substitute for a securities position that the Portfolio is otherwise  authorized
to enter into.

    The Portfolio may not purchase or sell futures contracts or purchase or sell
related  options,   except  for  closing  purchase  or  sale  transactions,   if
immediately  thereafter  the  sum  of  the  amount  of  margin  deposits  on the
Portfolio's  outstanding positions in futures and related options and the amount
of premiums paid for outstanding positions in options on futures would exceed 5%
of the market value of the Portfolio's net assets. There are no other percentage
limitations on the Portfolio's  transactions  on future  contracts or options on
futures,  except that at least 80% of the Portfolio's assets will be invested in
California  obligations.  These  transactions  involve brokerage costs,  require
margin deposits and, in the case of futures  contracts and options requiring the
Portfolio to purchase securities, require the Portfolio to segregate liquid high
grade  debt  securities  in an  amount  equal  to the  underlying  value of such
contracts and options. In addition,  while transactions in futures contracts and
options on futures  may  reduce  certain  risks,  such  transactions  themselves
involve (1) liquidity risk that  contractual  positions  cannot be easily closed
out in the event of market  changes,  (2)  correlation  risk that changes in the
value of hedging positions may not match the market fluctuations  intended to be
hedged (especially given that the only futures contracts  currently available to
hedge California  obligations are futures on various U.S. Government  securities
and on  municipal  securities  indices),  (3)  market  risk  that  an  incorrect
prediction by the  Investment  Adviser of interest rates may cause the Portfolio
to perform less well than if such  positions had not been entered into,  and (4)
skills different from those needed to select portfolio securities. Distributions
by  the  Fund  from  any  net  income  or  gains  realized  on  the  Portfolio's
transactions in futures and options on futures will be taxable.

ORGANIZATION OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------
THE FUND IS A DIVERSIFIED  SERIES OF EATON VANCE INVESTMENT TRUST (THE "TRUST"),
A BUSINESS TRUST ESTABLISHED  UNDER  MASSACHUSETTS LAW PURSUANT TO A DECLARATION
OF TRUST DATED  OCTOBER 23, 1985,  AS AMENDED.  THE TRUST IS A MUTUAL FUND -- AN
OPEN-END  MANAGEMENT   INVESTMENT  COMPANY.   The  Trustees  of  the  Trust  are
responsible for the overall management and supervision of its affairs. The Trust
may issue an unlimited number of shares of beneficial interest (no par value per
share) in one or more  series and because  the Trust can offer  separate  series
(such as the Fund) it is known as a "series  company".  Each share represents an
equal   proportionate   beneficial   interest  in  the  Fund.  When  issued  and
outstanding,  the  shares  are  fully  paid and  nonassessable  by the Trust and
redeemable  as described  under "How to Redeem Fund  Shares".  Shareholders  are
entitled  to one vote for each full share held.  Fractional  shares may be voted
proportionately.  Shares have no preemptive or conversion  rights and are freely
transferable.  Upon liquidation of the Fund,  shareholders are entitled to share
pro  rata  in  the  net  assets  of  the  Fund  available  for  distribution  to
shareholders.

    CALIFORNIA  TAX FREE  PORTFOLIO  (THE  "PORTFOLIO")  IS ORGANIZED AS A TRUST
UNDER  THE LAWS OF THE STATE OF NEW YORK AND IS  TREATED  AS A  PARTNERSHIP  FOR
FEDERAL TAX PURPOSES.  The  Portfolio,  as well as the Trust,  intends to comply
with  all  applicable   Federal  and  state  securities  laws.  The  Portfolio's
Declaration  of Trust  provides  that the Fund and other  entities  permitted to
invest in the Portfolio (e.g., other U.S. and foreign investment companies,  and
common and  commingled  trust funds) will each be liable for all  obligations of
the Portfolio. However, the risk of the Fund incurring financial loss on account
of such liability is limited to circumstances in which both inadequate insurance
exists and the Portfolio itself is unable to meet its obligations.  Accordingly,
the Trustees of the Trust  believe  that  neither the Fund nor its  shareholders
will be adversely affected by reason of the Fund investing in the Portfolio.

    SPECIAL INFORMATION ON THE FUND/PORTFOLIO  INVESTMENT STRUCTURE. An investor
in the Fund should be aware that the Fund,  unlike  mutual funds which  directly
acquire and manage  their own  portfolios  of  securities,  seeks to achieve its
investment  objective by investing  its assets in an interest in the  Portfolio,
which is a separate investment company with an identical  investment  objective.
Therefore,  the Fund's  interest in the  securities  owned by the  Portfolio  is
indirect. In addition to selling an interest to the Fund, the Portfolio may sell
interests to other affiliated and  non-affiliated  mutual funds or institutional
investors.  Such  investors  will invest in the  Portfolio on the same terms and
conditions  and will pay a  proportionate  share  of the  Portfolio's  expenses.
However, the other investors investing in the Portfolio are not required to sell
their shares at the same public  offering price as the Fund due to variations in
sales commissions and other operating expenses. Therefore, investors in the Fund
should be aware that these  differences  may  result in  differences  in returns
experienced  by investors in the different  funds that invest in the  Portfolio.
Such  differences  in returns are also present in other mutual fund  structures,
including funds that have multiple classes of shares. For information  regarding
the investment objective,  policies and restrictions of the Portfolio,  see "The
Fund's  Investment  Objective" and "How the Fund and the Portfolio  Invest their
Assets". Further information regarding investment practices may also be found in
the Statement of Additional Information.

    The Trustees of the Trust have  considered the advantages and  disadvantages
of investing the assets of the Fund in the Portfolio,  as well as the advantages
and  disadvantages  of the  two-tier  format.  The  Trustees  believe  that  the
structure  offers  opportunities  for  substantial  growth in the  assets of the
Portfolio,  and affords the  potential  for  economies of scale for the Fund, at
least when the assets of the Portfolio exceed $500 million.

    The Fund may withdraw  (completely redeem) all its assets from the Portfolio
at any time if the Board of Trustees of the Trust  determines  that it is in the
best  interest  of  the  Fund  to  do  so.  The  investment  objective  and  the
nonfundamental  investment policies of the Fund and the Portfolio may be changed
by the Trustees of the Trust and the Portfolio without obtaining the approval of
the shareholders of the Fund or the investors in the Portfolio.  Any such change
of the  investment  objective of the Fund or the  Portfolio  will be preceded by
thirty  days  advance  written  notice  to the  shareholders  of the Fund or the
investors in the Portfolio,  as the case may be. In the event the Fund withdraws
all of its assets  from the  Portfolio,  or the Board of  Trustees  of the Trust
determines  that  the  investment  objective  of  the  Portfolio  is  no  longer
consistent  with the  investment  objective  of the Fund,  such  Trustees  would
consider what action might be taken,  including  investing all the assets of the
Fund in another pooled investment  entity or retaining an investment  adviser to
manage the Fund's assets in accordance with its investment objective. The Fund's
investment  performance  may be affected by a withdrawal  of all its assets from
the Portfolio.

    Information regarding other pooled investment entities or funds which invest
in the Portfolio may be obtained by contacting  Eaton Vance  Distributors,  Inc.
(the "Principal  Underwriter" or "EVD"),  24 Federal Street,  Boston,  MA 02110,
(617)  482-8260.  Smaller  funds  investing  in the  Portfolio  may be adversely
affected by the actions of larger funds investing in the Portfolio. For example,
if a large fund withdraws from the Portfolio, the remaining funds may experience
higher  pro  rata  operating   expenses,   thereby   producing   lower  returns.
Additionally,  the  Portfolio  may become less  diverse,  resulting in increased
portfolio  risk, and experience  decreasing  economies of scale.  However,  this
possibility  exists as well for historically  structured mutual funds which have
large or institutional investors.

    Until  recently,  the  Administrator   sponsored  and  advised  historically
structured funds. Funds which invest all their assets in interests in a separate
investment  company are a relatively new development in the mutual fund industry
and,  therefore,  the  Fund  may  be  subject  to  additional  regulations  than
historically structured funds.

    The  Declaration of Trust of the Portfolio  provides that the Portfolio will
terminate  120 days  after  the  complete  withdrawal  of the Fund or any  other
investor in the Portfolio,  unless either the remaining investors,  by unanimous
vote at a meeting  of such  investors,  or a  majority  of the  Trustees  of the
Portfolio,  by  written  instrument  consented  to by all  investors,  agree  to
continue the  business of the  Portfolio.  This  provision  is  consistent  with
treatment of the Portfolio as a partnership for Federal income tax purposes. See
"Distributions  and  Taxes" for  further  information.  Whenever  the Fund as an
investor in the  Portfolio  is requested  to vote on matters  pertaining  to the
Portfolio (other than the termination of the Portfolio's business,  which may be
determined by the Trustees of the Portfolio without investor approval), the Fund
will hold a meeting  of Fund  shareholders  and will  vote its  interest  in the
Portfolio for or against such matters  proportionately  to the  instructions  to
vote for or against such matters received from Fund shareholders. The Fund shall
vote shares for which it receives no voting  instructions in the same proportion
as the shares for which it receives voting instructions.  Other investors in the
Portfolio may alone or collectively  acquire  sufficient voting interests in the
Portfolio to control matters  relating to the operation of the Portfolio,  which
may require the Fund to withdraw its  investment  in the Portfolio or take other
appropriate action. Any such withdrawal could result in a distribution "in kind"
of portfolio  securities (as opposed to a cash distribution from the Portfolio).
If securities  are  distributed,  the Fund could incur  brokerage,  tax or other
charges in converting the securities to cash. In addition,  the  distribution in
kind may result in a less  diversified  portfolio  of  investments  or adversely
affect the  liquidity of the Fund.  Notwithstanding  the above,  there are other
means for meeting shareholder redemption requests, such as borrowing.

    The  Trustees  of the  Trust,  including  a  majority  of the  noninterested
Trustees,  have approved written procedures designed to identify and address any
potential  conflicts of interest  arising from the fact that the Trustees of the
Trust and the Trustees of the Portfolio are the same.  Such  procedures  require
each Board to take actions to resolve any conflict of interest  between the Fund
and the Portfolio,  and it is possible that the creation of separate  boards may
be considered.  For further information  concerning the Trustees and officers of
the Trust and the Portfolio, see the Statement of Additional Information.

MANAGEMENT OF THE FUND AND THE PORTFOLIO
- ------------------------------------------------------------------------------
THE PORTFOLIO  ENGAGES BOSTON  MANAGEMENT AND RESEARCH  ("BMR"),  A WHOLLY-OWNED
SUBSIDIARY OF EATON VANCE MANAGEMENT ("EATON VANCE"), AS ITS INVESTMENT ADVISER.
EATON VANCE,  ITS  AFFILIATES AND ITS  PREDECESSOR  COMPANIES HAVE BEEN MANAGING
ASSETS OF  INDIVIDUALS  AND  INSTITUTIONS  SINCE  1924 AND  MANAGING  INVESTMENT
COMPANIES SINCE 1931.

    Acting  under  the  general  supervision  of the  Board of  Trustees  of the
Portfolio,  BMR manages  the  Portfolio's  investments  and  affairs.  Under its
investment  advisory  agreement  with the  Portfolio,  BMR  receives  a  monthly
advisory fee equal to the aggregate of

    (a) a daily asset  based fee  computed  by  applying  the annual  asset rate
        applicable  to that  portion  of the  total  daily  net  assets  in each
        Category as indicated below, plus

    (b) a daily  income  based fee  computed by applying  the daily  income rate
        applicable  to that  portion  of the total  daily  gross  income  (which
        portion shall bear the same relationship to the total daily gross income
        on such day as that  portion  of the total  daily net assets in the same
        Category  bears to the  total  daily  net  assets  on such  day) in each
        Category as indicated below:

                                                           ANNUAL        DAILY
CATEGORY  DAILY NET ASSETS                               ASSET RATE  INCOME RATE
- --------  ----------------                               ----------  -----------
   1      up to $500 million ...........................   0.300%       3.00%
   2      $500 million but less than $1 billion ........   0.275%       2.75%
   3      $1 billion but less than $1.5 billion ........   0.250%       2.50%
   4      $1.5 billion but less than $2 billion ........   0.225%       2.25%
   5      $2 billion but less than $3 billion ..........   0.200%       2.00%
   6      $3 billion and over ..........................   0.175%       1.75%

    As at September 30, 1994, the Portfolio had net assets of $445,131,401.  For
the fiscal year ended  September 30, 1994,  the Portfolio paid BMR advisory fees
equivalent to 0.50% (annualized) of the Portfolio's average daily net assets for
such period.

    BMR  also  furnishes  for  the use of the  Portfolio  office  space  and all
necessary  office   facilities,   equipment  and  personnel  for  servicing  the
investments  of the Portfolio.  The Portfolio is responsible  for the payment of
all expenses  other than those  expressly  stated to be payable by BMR under the
investment advisory agreement.

    Robert B.  MacIntosh has acted as the portfolio  manager since the Portfolio
commenced  operations.  Mr.  MacIntosh has been a Vice  President of Eaton Vance
since  1991 and of BMR  since  1992.  Prior to  joining  Eaton  Vance,  he was a
Portfolio Manager at Fidelity Management & Research Company (1986-1991).

    Municipal obligations, including California obligations, are normally traded
on a net basis (without commission) through  broker-dealers and banks acting for
their own account. Such firms attempt to profit from such transactions by buying
at the bid price and selling at the higher  asked  price of the market,  and the
difference is customarily  referred to as the spread.  In selecting  firms which
will execute portfolio  transactions,  BMR judges their professional ability and
quality of service and uses its best efforts to obtain execution at prices which
are advantageous to the Portfolio and at reasonably competitive spreads. Subject
to the  foregoing,  BMR may  consider  sales of  shares  of the Fund or of other
investment  companies  sponsored  by BMR  or  Eaton  Vance  as a  factor  in the
selection of firms to execute portfolio transactions.

    BMR OR EATON VANCE ACTS AS INVESTMENT  ADVISER TO  INVESTMENT  COMPANIES AND
VARIOUS  INDIVIDUAL AND  INSTITUTIONAL  CLIENTS WITH ASSETS UNDER  MANAGEMENT OF
APPROXIMATELY  $15 BILLION.  Eaton Vance is a  wholly-owned  subsidiary of Eaton
Vance Corp.,  a publicly held holding  company.  Eaton Vance Corp.,  through its
subsidiaries  and  affiliates,  engages in investment  management  and marketing
activities,  fiduciary and banking services, oil and gas operations, real estate
investment,  consulting  and  management,  and  development  of precious  metals
properties.

    The Trust has retained  the services of Eaton Vance to act as  administrator
of the Fund.  The Trust has not retained the services of an  investment  adviser
since  the  Trust  seeks to  achieve  the  investment  objective  of the Fund by
investing  the Fund's assets in the  Portfolio.  As  Administrator,  Eaton Vance
provides the Fund with general  office  facilities  and  supervises  the overall
administration  of  the  Fund.  For  these  services  Eaton  Vance  receives  no
compensation.  The Trustees may determine,  in the future,  to compensate  Eaton
Vance for such services.

    The Portfolio and the Fund, as the case may be, will each be responsible for
all  respective  costs and  expenses not  expressly  stated to be payable by BMR
under the investment advisory agreement, by Eaton Vance under the administrative
services agreement, or by EVD under the distribution  agreement.  Such costs and
expenses to be borne by the Portfolio and the Fund, as the case may be, include,
without  limitation;  custody and transfer  agency fees and expenses,  including
those for determining net asset value and keeping  accounting books and records;
expenses  of pricing and  valuation  services;  the cost of share  certificates;
membership  dues in  investment  company  organizations;  expenses of acquiring,
holding and disposing of securities and other investments;  fees and expenses of
registering  under the securities laws and the  governmental  fees;  expenses of
reporting to shareholders and investors;  proxy statements and other expenses of
shareholders' or investors' meetings;  insurance premiums;  printing and mailing
expenses;  interest,  taxes and corporate fees;  legal and accounting  expenses;
compensation  and expenses of Trustees not  affiliated  with BMR or Eaton Vance;
and investment  advisory fees,  and, if any,  administrative  services fees. The
Portfolio and the Fund will also each bear expenses  incurred in connection with
litigation  in which the  Portfolio or the Fund,  as the case may be, is a party
and any legal obligation to indemnify its respective  officers and Trustees with
respect thereto.

SERVICE PLAN
- -------------------------------------------------------------------------------
In addition to advisory  fees and other  expenses,  the Fund pays  service  fees
pursuant to a Service Plan (the  "Plan")  designed to meet the  requirements  of
Rule  12b-1  under  the  Investment  Company  Act of 1940  and the  service  fee
requirements  of the revised  sales charge rule of the National  Association  of
Securities  Dealers,  Inc.  The Plan is further  described  in the  Statement of
Additional  Information,  and the  following  is a  description  of the  salient
features of the Plan.

    THE PLAN  PROVIDES  THAT THE FUND MAY MAKE SERVICE FEE PAYMENTS FOR PERSONAL
SERVICES  AND/OR  THE  MAINTENANCE  OF  SHAREHOLDER  ACCOUNTS  TO THE  PRINCIPAL
UNDERWRITER, AUTHORIZED FIRMS AND OTHER PERSONS IN AMOUNTS NOT EXCEEDING .25% OF
THE FUND'S  AVERAGE  DAILY NET ASSETS FOR ANY FISCAL  YEAR.  The Trustees of the
Trust  have  initially  implemented  the  Plan by  authorizing  the Fund to make
service fee  payments  to the  Principal  Underwriter  and  Authorized  Firms in
amounts not expected to exceed .25% of the Fund's  average  daily net assets for
any fiscal year which is based on the value of Fund shares sold by such  persons
and  remaining  outstanding  for at least  twelve  months.  The Fund  expects to
commence accruing service fee payments during the quarter ending June 30, 1995.

VALUING FUND SHARES
- ------------------------------------------------------------------------------

THE FUND  VALUES ITS SHARES  ONCE ON EACH DAY THE NEW YORK STOCK  EXCHANGE  (THE
"EXCHANGE")  IS OPEN FOR  TRADING,  as of the close of  regular  trading  on the
Exchange  (normally  4:00 p.m.  New York  time).  The Fund's net asset value per
share is determined by its custodian,  Investors  Bank & Trust Company  ("IBT"),
(as agent for the Fund) in the manner  authorized  by the Trustees of the Trust.
Net asset value is computed by dividing  the value of the Fund's  total  assets,
less its  liabilities,  by the number of shares  outstanding.  Because  the Fund
invests  substantially  all of its assets in an interest in the  Portfolio,  the
Fund's net asset value will reflect the value of its  interest in the  Portfolio
(which,  in turn,  reflects the underlying  value of the Portfolio's  assets and
liabilities).

    Financial service firms ("Authorized  Firms") must communicate an investor's
order  to the  Principal  Underwriter  prior  to  the  close  of  the  Principal
Underwriter's  business  day to receive that day's net asset value per share and
the  public  offering  price  based  thereon.   It  is  the  Authorized   Firms'
responsibility to transmit orders promptly to the Principal  Underwriter,  which
is a wholly-owned subsidiary of Eaton Vance.

    The  Portfolio's  net  asset  value is also  determined  as of the  close of
regular  trading  on the  Exchange  by IBT  (as  custodian  and  agent  for  the
Portfolio)  based on  market  or fair  value  in the  manner  authorized  by the
Trustees of the Portfolio. California obligations will normally be valued on the
basis of  valuations  furnished by a pricing  service.  For further  information
regarding the valuation of the Portfolio's  assets,  see  "Determination  of Net
Asset Value" in the Statement of Additional Information.  Eaton Vance Corp. owns
77.3% of the outstanding stock of IBT, the Fund's and the Portfolio's custodian.

- --------------------------------------------------------------------------------
  SHAREHOLDERS  MAY DETERMINE THE VALUE OF THEIR  INVESTMENT BY MULTIPLYING  THE
  NUMBER OF FUND SHARES OWNED BY THE CURRENT NET ASSET VALUE.
- ------------------------------------------------------------------------------


HOW TO BUY FUND SHARES
- ------------------------------------------------------------------------------
SHARES OF THE FUND MAY BE PURCHASED  FOR CASH OR MAY BE ACQUIRED IN EXCHANGE FOR
SECURITIES.  Investors may purchase shares of the Fund through  Authorized Firms
at the effective  public offering  price,  which price is based on the effective
net asset value per share plus the  applicable  sales charge.  The Fund receives
the net asset value,  while the sales charge is divided  between the  Authorized
Firm and the Principal  Underwriter.  The Principal Underwriter will furnish the
names of Authorized Firms to an investor upon request.  The Fund may suspend the
offering  of shares at any time and may  refuse  an order  for the  purchase  of
shares.

    The sales  charge may vary  depending  on the size of the  purchase  and the
number  of  shares of Eaton  Vance  funds the  investor  may  already  own,  any
arrangement to purchase  additional  shares during a 13-month  period or special
purchase  programs.  Complete  details of how investors  may purchase  shares at
reduced sales charges under a Statement of Intention, Right of Accumulation,  or
various  employee  benefit  plans are  available  from  Authorized  Firms or the
Principal Underwriter.

    The current sales charges are:

                                            SALES CHARGE      SALES CHARGE
                                          AS PERCENTAGE OF  AS PERCENTAGE OF
AMOUNT OF PURCHASE                         OFFERING PRICE   AMOUNT INVESTED

Under $100,000 ......................          4.75%             4.99%
$100,000 but less than $250,000 .....          3.75              3.90
$250,000 but less than $500,000 .....          2.75              2.83
$500,000 but less than $1,000,000 ...          2.00              2.04
$1,000,000 or more ..................             0*                0*

 *No sales  charge is  payable  at the time of  purchase  on  investments  of $1
  million or more. A  contingent  deferred  sales charge  ("CDSC") of 1% will be
  imposed  on such  investments,  as  described  below,  in the event of certain
  redemption transactions within 18 months of purchase.

    The current dealer commission is:
                                                               DEALER COMMISSION
                                                                AS PERCENTAGE OF
AMOUNT OF PURCHASE                                                OFFERING PRICE

Under $100,000 ................................................       5.00%
$100,000 but less than $250,000 ...............................       4.00
$250,000 but less than $500,000 ...............................       3.00
$500,000 but less than $1,000,000 .............................       2.25
$1,000,000 or more ............................................          0**

**The  Principal  Underwriter  may pay a  commission  to  Authorized  Firms  who
  initiate and are  responsible  for purchases of $1 million or more as follows:
  1.00% on sales up to $2 million,  plus 0.80% on the next $1 million,  0.20% on
  the next $2 million and 0.08% on the excess over $5 million.

    The Principal  Underwriter may at times allow discounts up to the full sales
charge.  During periods when the discount  includes the full sales charge,  such
Firms may be deemed to be underwriters as that term is defined in the Securities
Act of 1933.

    The  Principal  Underwriter  may,  from  time to time,  at its own  expense,
provide  additional  incentives  to  Authorized  Firms which  employ  registered
representatives  who sell a minimum  dollar  amount of the Fund's  shares and/or
shares  of  other  funds  distributed  by the  Principal  Underwriter.  In  some
instances,  such additional incentives may be offered only to certain Authorized
Firms whose representatives are expected to sell significant amounts of shares.

    An initial  investment in the Fund must be at least $1,000.  Once an account
has been  established  the investor may send  investments  of $50 or more at any
time directly to the Fund's transfer agent as follows:  The Shareholder Services
Group, Inc., BOS725, P.O. Box 1559, Boston, MA 02104. The $1,000 minimum initial
investment is waived for Bank Draft Investing accounts, which may be established
with an investment of $50 or more. See "Eaton Vance Shareholder Services".

    Shares of the Fund may be sold at net asset  value to  current  and  retired
Directors  and  Trustees of Eaton  Vance  funds,  including  the  Portfolio;  to
officers  and  employees  and  clients  of Eaton  Vance and its  affiliates;  to
registered representatives and employees of Authorized Firms; and bank employees
who refer customers to registered  representatives  of Authorized  Firms; and to
such  persons'  spouses and  children  under the age of 21 and their  beneficial
accounts.  Shares may also be issued at net asset value in  connection  with the
merger  of an  investment  company  with  the Fund and to  investors  making  an
investment as part of a fixed fee program  whereby an entity  unaffiliated  with
the  Investment  Adviser  provides  multiple   investment   services,   such  as
management, brokerage and custody.

    ACQUIRING FUND SHARES IN EXCHANGE FOR SECURITIES. IBT, as escrow agent, will
receive securities acceptable to Eaton Vance, as Administrator,  in exchange for
Fund shares at the applicable  public offering price as shown above. The minimum
value of  securities  or  securities  and cash  accepted  for deposit is $5,000.
Securities  accepted will be sold by IBT as agent for the account of their owner
on the day of their receipt by IBT or as soon thereafter as possible. The number
of Fund shares to be issued in exchange  for  securities  will be the  aggregate
proceeds  from the sale of such  securities,  divided by the  applicable  public
offering price per Fund share on the day such proceeds are received. EATON VANCE
WILL USE  REASONABLE  EFFORTS  TO  OBTAIN  THE  CURRENT  MARKET  PRICE  FOR SUCH
SECURITIES  BUT DOES NOT GUARANTEE THE BEST  AVAILABLE  PRICE.  EATON VANCE WILL
ABSORB  ANY  TRANSACTION  COSTS,  SUCH  AS  COMMISSIONS,  ON  THE  SALE  OF  THE
SECURITIES.

    Securities  determined to be acceptable should be transferred via book entry
or  physically  delivered,  in proper form for  transfer,  through an Authorized
Firm,  together with a completed and signed  Letter of  Transmittal  in approved
form (available from Authorized Firms), as follows:

    IN THE CASE OF BOOK ENTRY:
        Deliver through Depository Fund Co.
        Broker #2212
        Investors Bank & Trust Company
        For  A/C EV  Traditional  California  Municipals  Fund 

    IN THE  CASE  OF PHYSICAL DELIVERY:
        Investors Bank & Trust Company
        Attention: EV Traditional California Municipals Fund
        Physical Securities Processing Settlement Area
        89 South Street
        Boston, MA 02111

    Investors who are  contemplating an exchange of securities for shares of the
Fund, or their  representatives,  must contact Eaton Vance to determine  whether
the securities are acceptable  before  forwarding  such securities to IBT. Eaton
Vance  reserves the right to reject any  securities.  Exchanging  securities for
Fund shares may create a taxable gain or loss.  Each investor should consult his
or her tax adviser with respect to the particular  Federal,  state and local tax
consequences of exchanging securities for Fund shares.

- --------------------------------------------------------------------------------
  IF YOU DON'T HAVE AN AUTHORIZED FIRM, EATON VANCE CAN RECOMMEND ONE.
- ------------------------------------------------------------------------------

HOW TO REDEEM FUND SHARES
- -------------------------------------------------------------------------------
A SHAREHOLDER MAY REDEEM FUND SHARES BY DELIVERING TO THE  SHAREHOLDER  SERVICES
GROUP, INC.,  BOS725,  P.O. BOX 1559, BOSTON,  MASSACHUSETTS  02104,  during its
business hours a written  request for  redemption in good order,  plus any share
certificates  with executed stock powers.  The redemption price will be based on
the net asset value per Fund share next computed after such delivery. Good order
means that all  relevant  documents  must be  endorsed  by the record  owner (s)
exactly as the shares are registered and the signature(s)  must be guaranteed by
a member of either the Securities  Transfer  Association's  STAMP program or the
New York Stock Exchange's Medallion Signature Program, or certain banks, savings
and loan institutions,  credit unions, securities dealers, securities exchanges,
clearing  agencies  and  registered  securities  associations  as  required by a
regulation  of the  Securities  and Exchange  Commission  and  acceptable to The
Shareholder  Services  Group,  Inc. In addition,  in some cases,  good order may
require  the  furnishing  of  additional  documents  such as  where  shares  are
registered in the name of a corporation, partnership or fiduciary.

    Within seven days after receipt of a redemption request in good order by The
Shareholder Services Group, Inc., the Fund will make payment in cash for the net
asset value of the shares as of the date determined above, reduced by the amount
of any Federal  income tax required to be withheld.  Although the Fund  normally
expects  to make  payment in cash for  redeemed  shares,  the Trust,  subject to
compliance  with  applicable  regulations,  has  reserved  the  right to pay the
redemption  price of shares of the  Fund,  either  totally  or  partially,  by a
distribution in kind of readily marketable securities withdrawn by the Fund from
the Portfolio.  The securities so  distributed  would be valued  pursuant to the
Portfolio's  valuation  procedures.  If a shareholder received a distribution in
kind, the  shareholder  could incur brokerage or other charges in converting the
securities to cash.

    To sell  shares at their net  asset  value  through  an  Authorized  Firm (a
repurchase),  a  shareholder  can place a repurchase  order with the  Authorized
Firm,  which may  charge a fee.  The value of such  shares is based upon the net
asset value calculated after EVD, as the Fund's agent, receives the order. It is
the Authorized Firm's  responsibility to transmit promptly  repurchase orders to
EVD.  Throughout this  Prospectus,  the word  "redemption" is generally meant to
include a repurchase.

    If  shares  were  recently   purchased,   the  proceeds  of  redemption  (or
repurchase) will not be sent until the check (including a certified or cashier's
check)  received  for the  shares  purchased  has  cleared.  Payment  for shares
tendered for redemption may be delayed up to 15 days from the purchase date when
the purchase check has not yet cleared. Redemptions or repurchases may result in
a taxable gain or loss.

    Due to the high cost of maintaining  small  accounts,  the Fund reserves the
right to redeem Fund accounts with balances of less than $1,000. Prior to such a
redemption,  shareholders  will be  given  60  days  written  notice  to make an
additional  purchase.  Thus, an investor making an initial  investment of $1,000
would  not be able to  redeem  shares  without  being  subject  to this  policy.
However,  no such  redemption  would be required by the Fund if the cause of the
low account balance was a reduction in the net asset value of Fund shares.

    If shares  have been  purchased  at net asset  value with no  initial  sales
charge by virtue of the purchase having been in the amount of $1 million or more
and are redeemed  within 18 months after the end of the calendar  month in which
the purchase was made, a CDSC of 1% will be imposed on such redemption. The CDSC
will be retained by the Principal Underwriter.

    The CDSC will be  imposed on an amount  equal to the  lesser of the  current
market value or the original purchase price of the shares redeemed. Accordingly,
no CDSC will be imposed on increases in account value above the initial purchase
price,  including any dividends or  distributions  that have been  reinvested in
additional shares. In determining  whether a CDSC is applicable to a redemption,
the  calculation  will be made in a manner that  results in the lowest  possible
rate being charged.  It will be assumed that redemptions are made first from any
shares in the shareholder's account that are not subject to a CDSC.
 
   The CDSC is waived for redemptions involving certain liquidation,  merger or
acquisition  transactions involving other investment companies. If a shareholder
reinvests  redemption  proceeds  within the 30-day period and in accordance with
the conditions set forth under "Eaton Vance Shareholder Services -- Reinvestment
Privilege,"  the  shareholder's  account will be credited with the amount of any
CDSC paid on such redeemed shares.

REPORTS TO SHAREHOLDERS
- ------------------------------------------------------------------------------
THE  FUND  WILL  ISSUE  TO  ITS  SHAREHOLDERS  SEMI-ANNUAL  AND  ANNUAL  REPORTS
CONTAINING FINANCIAL STATEMENTS. Financial statements included in annual reports
are audited by the Fund's  independent  certified  public  accountants.  Shortly
after the end of each calendar year, the Fund will furnish all shareholders with
information  necessary  for  preparing  Federal  income tax and  California  tax
returns.

THE LIFETIME INVESTING ACCOUNT/DISTRIBUTION OPTIONS
- ------------------------------------------------------------------------------
AFTER AN INVESTOR MAKES AN INITIAL PURCHASE OF FUND SHARES,  THE FUND'S TRANSFER
AGENT, THE SHAREHOLDER  SERVICES GROUP,  INC., WILL SET UP A LIFETIME  INVESTING
ACCOUNT  FOR THE  INVESTOR  ON THE FUND'S  RECORDS.  This  account is a complete
record of all transactions  between the investor and the Fund which at all times
shows the balance of shares  owned.  The Fund will not issue share  certificates
except upon request.

    At least  quarterly,  the  shareholder  will  receive  a  statement  showing
complete  details  of any  transaction  and the  current  share  balance  in the
account.  THE LIFETIME  INVESTING  ACCOUNT ALSO  PERMITS A  SHAREHOLDER  TO MAKE
ADDITIONAL  INVESTMENTS  BY  SENDING A CHECK FOR $50 OR MORE to The  Shareholder
Services Group, Inc.

    Any questions  concerning a shareholder's  account or services available may
be directed by telephone to EATON VANCE  SHAREHOLDER  SERVICES at  800-225-6265,
extension 2, or in writing to The Shareholder Services Group, Inc., BOS725, P.O.
Box 1559, Boston, MA 02104 (please provide your name and account number).

    THE  FOLLOWING  DISTRIBUTION  OPTIONS  WILL  BE  AVAILABLE  TO ALL  LIFETIME
INVESTING  ACCOUNTS and may be changed as often as desired by written  notice to
the Fund's dividend  disbursing  agent,  The Shareholder  Services Group,  Inc.,
BOS725,  P.O. Box 1559,  Boston,  MA 02104. The currently  effective option will
appear on each confirmation statement.

    Share Option -- Dividends and capital gains will be reinvested in additional
                    shares.

    Income Option -- Dividends,  will be paid in cash, and capital gains will be
                     reinvested in additional shares.

    Cash Option   -- Dividends and capital  gains will be paid in cash.

     The  Share  Option  will be  assigned  if no  other  option  is  specified.
Distributions,  including those  reinvested,  will be reduced by any withholding
required under the Federal income tax laws.

    If the Income  Option or Cash  Option  has been  selected,  dividend  and/or
capital gains distribution checks which are returned by the United States Postal
Service as not  deliverable or which remain uncashed for six months or more will
be reinvested  in the account at the then current net asset value.  Furthermore,
the  distribution  option on the account  will be  automatically  changed to the
Share Option until such time as the shareholder selects a different option.

    DISTRIBUTION  INVESTMENT OPTION. In addition to the distribution options set
forth above, dividends and/or capital gains may be invested in additional shares
of another Eaton Vance fund. Before selecting this option, a shareholder  should
obtain a prospectus  of the other Eaton Vance fund and  consider its  objectives
and policies carefully.

    "STREET  NAME"  ACCOUNTS.  If shares of the Fund are held in a "street name"
account with an Authorized Firm, all recordkeeping,  transaction  processing and
payments of  distributions  relating to the beneficial  owner's  account will be
performed by the Authorized  Firm,  and not by the Fund and its transfer  agent.
Since the Fund will have no record of the  beneficial  owner's  transactions,  a
beneficial  owner should  contact the  Authorized  Firm to  purchase,  redeem or
exchange shares, to make changes in or give instructions concerning the account,
or to obtain information about the account.  The transfer of shares in a "street
name" account to an account with another  dealer or to an account  directly with
the Fund involves  special  procedures and will require the beneficial  owner to
obtain historical purchase  information about the shares in the account from the
Authorized Firm. Before  establishing a "street name" account with an investment
firm,  or  transferring  the  account to another  investment  firm,  an investor
wishing to reinvest  distributions  should determine whether the firm which will
hold the shares allows reinvestment of distributions in "street name" accounts.

- --------------------------------------------------------------------------------
  UNDER  A  LIFETIME   INVESTING  ACCOUNT  A  SHAREHOLDER  CAN  MAKE  ADDITIONAL
  INVESTMENTS BY SENDING A CHECK FOR $50 OR MORE.
- ------------------------------------------------------------------------------


THE EATON VANCE EXCHANGE PRIVILEGE
- ------------------------------------------------------------------------------
Shares of the Fund may be exchanged  for shares of any of the  following  funds:
Eaton Vance Cash Management Fund, Eaton Vance Income Fund of Boston, Eaton Vance
Municipal  Bond Fund L.P.,  Eaton  Vance Tax Free  Reserves  and any fund in the
Eaton Vance Traditional Group of Funds on the basis of net asset value per share
of each fund at the time of the exchange, provided that such exchange offers are
available  only in states where shares of the fund being acquired may be legally
sold.

    Each  exchange  must involve  shares which have a net asset value of $1,000.
The  exchange  privilege  may  be  changed  or  discontinued   without  penalty.
Shareholders  will be given sixty (60) days notice prior to any  termination  or
material  amendment  of the  exchange  privilege.  The Fund does not  permit the
exchange privilege to be used for "Market Timing" and may terminate the exchange
privilege for any  shareholder  account engaged in Market Timing  activity.  Any
shareholder account for which more than two round-trip exchanges are made within
any  twelve  month  period  will be  deemed  to be  engaged  in  Market  Timing.
Furthermore,  a group of  unrelated  accounts  for which  exchanges  are entered
contemporaneously  by a financial  intermediary will be considered to be engaged
in Market Timing.

    Shares of the Fund which are subject to a CDSC may be exchanged  into any of
the above funds without  incurring the CDSC. The shares  acquired in an exchange
may be subject to a CDSC upon  redemption.  For purposes of  computing  the CDSC
payable upon redemption of shares acquired in an exchange, the holding period of
the original shares is added to the holding period of the shares acquired in the
exchange.

    The Shareholder  Services Group, Inc. makes exchanges at the next determined
net asset value after  receiving an exchange  request in good order (see "How to
Redeem  Fund  Shares").   Consult  The  Shareholder  Services  Group,  Inc.  for
additional  information  concerning  the exchange  privilege.  Applications  and
prospectuses  of the other  funds are  available  from  Authorized  Firms or the
Principal  Underwriter.  The  prospectus  for each fund describes its investment
objectives  and  policies,  and  shareholders  should  obtain a  prospectus  and
consider these objectives and policies carefully before requesting an exchange.

    Shares of certain  other  funds for which  Eaton  Vance  acts as  investment
adviser or  administrator  may be similarly  exchanged  for Fund shares at their
respective  net asset  values per share,  but  subject  to any  restrictions  or
qualifications set forth in the current prospectus of any such fund.

     Telephone  exchanges are accepted by The Shareholder  Services Group,  Inc.
provided the investor has not disclaimed in writing the use of the privilege. To
effect  such  exchanges,  call The  Shareholder  Services  Group,  Inc.  at 800-
262-1122 or, within  Massachusetts,  617-573-9403,  Monday through Friday,  9:00
a.m. to 4:00 p.m. (Eastern Standard Time). Shares acquired by telephone exchange
must be  registered  in the same name(s) and with the same address as the shares
being exchanged. Neither the Fund, the Principal Underwriter nor The Shareholder
Services  Group,  Inc.  will be  responsible  for the  authenticity  of exchange
instructions  received by  telephone;  provided  that  reasonable  procedures to
confirm that instructions communicated are genuine have been followed. Telephone
instructions  will be tape  recorded.  In times of  drastic  economic  or market
changes,  a telephone  exchange may be difficult to  implement.  An exchange may
result in a taxable gain or loss.

EATON VANCE SHAREHOLDER SERVICES
- ------------------------------------------------------------------------------
THE FUND OFFERS THE FOLLOWING  SERVICES,  WHICH ARE VOLUNTARY,  INVOLVE NO EXTRA
CHARGE,  AND MAY BE CHANGED OR  DISCONTINUED  WITHOUT  PENALTY AT ANY TIME. Full
information on each of the services  described below and an  application,  where
required, are available from Authorized Firms or the Principal Underwriter.  The
cost  of  administering  such  services  for the  benefit  of  shareholders  who
participate in them is borne by the Fund as an expense to all shareholders.

INVEST-BY-MAIL  -- FOR  PERIODIC  SHARE  ACCUMULATION:  Once the $1,000  minimum
investment has been made, checks of $50 or more payable to the order of the Fund
may be mailed directly to The Shareholder Services Group, Inc., BOS725, P.O. Box
1559,  Boston,  MA 02104 at any time -- whether or not dividends are reinvested.
The name of the  shareholder,  the Fund and the account number should  accompany
each investment.

BANK DRAFT INVESTING -- FOR REGULAR SHARE ACCUMULATION:  Cash investments of $50
or more may be made through the  shareholder's  checking  account via bank draft
each month or quarter.  The $1,000 minimum initial  investment and small account
redemption policy are waived for these accounts.

STATEMENT  OF  INTENTION:  Purchases  of  $100,000  or more made over a 13-month
period are eligible for reduced sales  charges.  See "Statement of Intention and
Escrow Agreement".

RIGHT OF ACCUMULATION:  Purchases may qualify for reduced sales charges when the
current market value of holdings (shares at current  offering  price),  plus new
purchases,  reaches $100,000 or more.  Shares of the Eaton Vance funds mentioned
under "The Eaton Vance  Exchange  Privilege" may be combined under the Statement
of Intention and Right of Accumulation.

WITHDRAWAL  PLAN: A shareholder may draw on  shareholdings  systematically  with
monthly or quarterly checks in an amount specified by the shareholder. A minimum
deposit of $5,000 in shares is required.

REINVESTMENT PRIVILEGE: A SHAREHOLDER WHO HAS REPURCHASED OR REDEEMED SHARES MAY
REINVEST ANY PORTION OR ALL OF THE REPURCHASE OR REDEMPTION  PROCEEDS (PLUS THAT
AMOUNT  NECESSARY TO ACQUIRE A FRACTIONAL SHARE TO ROUND OFF THE PURCHASE TO THE
NEAREST  FULL  SHARE)  IN  SHARES  OF THE FUND,  or,  provided  that the  shares
repurchased or redeemed have been held for at least 30 days, in shares of any of
the other  funds  offered by the  Principal  Underwriter  with an initial  sales
charge at net asset value,  provided that the reinvestment is effected within 30
days after  such  repurchase  or  redemption.  Shares are sold to a  reinvesting
shareholder at the next determined net asset value following timely receipt of a
written purchase order by the Principal  Underwriter or by the fund whose shares
are to be purchased (or by such fund's  transfer  agent).  The privilege is also
available to holders of shares of the other funds  offered with an initial sales
charge by the  Principal  Underwriter  who wish to reinvest  such  redemption or
repurchase proceeds in shares of the Fund. If a shareholder reinvests redemption
proceeds  within the 30 day period the  shareholder's  account  will be credited
with  the  amount  of any  CDSC  paid on such  redeemed  shares.  A  reinvesting
shareholder  may realize a gain or loss for Federal tax  purposes as a result of
such  repurchase or  redemption.  Special rules may apply to the  computation of
gain or loss and to the deduction of loss on a repurchase or redemption followed
by a reinvestment.  See "Distributions and Taxes".  Shareholders  should consult
their tax advisers concerning the tax consequences of reinvestments.

DISTRIBUTIONS AND TAXES
- ------------------------------------------------------------------------------
SUBSTANTIALLY  ALL  OF THE  INVESTMENT  INCOME  ALLOCATED  TO  THE  FUND  BY THE
PORTFOLIO, LESS THE FUND'S DIRECT AND ALLOCATED EXPENSES, WILL BE DECLARED DAILY
AS A DISTRIBUTION  TO FUND  SHAREHOLDERS  OF RECORD AT THE TIME OF  DECLARATION.
Such  distributions,  whether taken in cash or reinvested in additional  shares,
will  ordinarily  be paid on the last day of each month or the next business day
thereafter. The Fund anticipates that for tax purposes, the entire distribution,
whether  taken  in  cash or  additional  shares  of the  Fund,  will  constitute
tax-exempt  income to the shareholders  for Federal income tax purposes,  except
for the proportionate  part of the distribution  that may be considered  taxable
income if the Fund has taxable  income  during the calendar  year.  Shareholders
reinvesting the monthly  distribution should continue to treat the amount of the
entire  distribution as the tax cost basis of the additional  shares acquired by
reason of such reinvestment.  Daily distribution  crediting will commence on the
day that  collected  funds for the purchase of Fund shares are  available at the
Transfer Agent.  Shareholders will receive timely Federal income tax information
as to the  tax-exempt or taxable  status of all  distributions  made by the Fund
during the calendar year. The Fund's net realized capital gains, if any, consist
of the net realized capital gains allocated to the Fund by the Portfolio for tax
purposes,  after taking into account any available capital loss carryovers;  the
Fund's net realized  capital gains,  if any, will be distributed at least once a
year, usually in December.

    Sales  charges  paid upon a  purchase  of Fund  shares  cannot be taken into
account for purposes of determining  gain or loss on a redemption or exchange of
the shares before the 91st day after their  purchase to the extent shares of the
Fund or of  another  fund  are  subsequently  acquired  pursuant  to the  Fund's
reinvestment or exchange privilege. In addition, losses realized on a redemption
of Fund shares may be  disallowed  under  certain  "wash sale" rules if within a
period  beginning 30 days before and ending 30 days after the date of redemption
other shares of the Fund are acquired.  Any  disregarded  or disallowed  amounts
will result in an  adjustment to the  shareholder's  tax basis in some or all of
any other shares acquired.

    In order to qualify as a regulated  investment  company  under the  Internal
Revenue Code (the "Code"), the Fund must satisfy certain  requirements  relating
to  the  sources  of  its  income,  the  distribution  of its  income,  and  the
diversification of its assets. In satisfying these  requirements,  the Fund will
treat itself as owning its proportionate share of each of the Portfolio's assets
and as entitled to the income of the  Portfolio  properly  attributable  to such
share.

- ------------------------------------------------------------------------------
  AS A  REGULATED  INVESTMENT  COMPANY  UNDER  THE  CODE,  THE FUND DOES NOT PAY
  FEDERAL  INCOME  OR  EXCISE  TAXES  TO  THE  EXTENT  THAT  IT  DISTRIBUTES  TO
  SHAREHOLDERS  ITS NET  INVESTMENT  INCOME AND NET  REALIZED  CAPITAL  GAINS IN
  ACCORDANCE WITH THE TIMING REQUIREMENTS  IMPOSED BY THE CODE. AS A PARTNERSHIP
  UNDER THE CODE, THE PORTFOLIO DOES NOT PAY FEDERAL INCOME OR EXCISE TAXES.
- ------------------------------------------------------------------------------

    Distributions of interest on certain municipal obligations  constitute a tax
preference  item under the  alternative  minimum tax  provisions  applicable  to
individuals  and  corporations  (see page 5).  Distributions  of taxable  income
(including  a portion of any  original  issue  discount  with respect to certain
stripped  municipal  obligations  and stripped  coupons and accretion of certain
market   discount)  and  net  short-term   capital  gains  will  be  taxable  to
shareholders as ordinary income.  Distributions  of long-term  capital gains are
taxable to shareholders  as such for Federal income tax purposes,  regardless of
the length of time Fund shares have been owned by the shareholder. Distributions
are taxed in the manner  described  above  whether paid in cash or reinvested in
additional shares of the Fund.

    Tax-exempt  distributions  received from the Fund are  includable in the tax
base for determining  the taxability of social security and railroad  retirement
benefits.

    Interest on indebtedness  incurred or continued by a shareholder to purchase
or carry shares of the Fund is not deductible to the extent it is deemed related
to the Fund's distribution of tax-exempt interest.  Further, entities or persons
who are  "substantial  users" (or  persons  related to  "substantial  users") of
facilities  financed by industrial  development or private activity bonds should
consult their tax advisers before  purchasing  shares of the Fund.  "Substantial
user " is defined in applicable  Treasury  regulations  to include a "non-exempt
person" who  regularly  uses in trade or business a part of a facility  financed
from  the  proceeds  of  industrial   development  bonds  and  would  likely  be
interpreted  to  include  private  activity  bonds  issued  to  finance  similar
facilities.

    California  law provides that  dividends  paid by the Fund and designated by
the Fund as  tax-exempt  are  exempt  from  California  personal  income  tax on
individuals  who reside in California  to the extent such  dividends are derived
from interest payments on California obligations,  provided that at least 50% of
the assets of the Portfolio at the close of each quarter of its taxable year are
invested in obligations  the interest on which is exempt under either Federal or
California  law from  taxation  by the  State of  California.  Distributions  of
short-term  capital gains are treated as ordinary income,  and  distributions of
long-term  capital  gains are  treated  as  long-term  capital  gains  under the
California personal income tax.

    Shareholders  should  consult  their own tax  advisers  with  respect to the
state, local and foreign tax consequences of investing in the Fund.

PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
FROM TIME TO TIME,  THE FUND MAY ADVERTISE ITS YIELD AND/OR AVERAGE ANNUAL TOTAL
RETURN.  The current  yield for the Fund will be  calculated by dividing the net
investment  income  per  share  during a recent  30 day  period  by the  maximum
offering  price  per  share  of the  Fund  on the  last  day of the  period  and
annualizing  the resulting  figure.  A  taxable-equivalent  yield is computed by
using the  tax-exempt  yield  figure and  dividing by 1 minus the tax rate.  The
Fund's  average  annual total return is determined by multiplying a hypothetical
initial purchase order of $1,000 by the average annual compounded rate of return
(including  capital  appreciation/depreciation,  and dividends and distributions
paid and  reinvested)  for the stated  period and  annualizing  the result.  The
calculation assumes the maximum sales charge is deducted from the initial $1,000
purchase  order and that all dividends are  reinvested at net asset value on the
reinvestment  dates  during the  period.  The Fund may also  publish  annual and
cumulative total return figures from time to time.

    The Fund  may also  publish  its  distribution  rate  and/or  its  effective
distribution rate. The Fund's distribution rate is computed by dividing the most
recent  monthly  distribution  per  share  annualized,  by the  current  maximum
offering price per share. The Fund's effective  distribution rate is computed by
dividing the  distribution  rate by the ratio used to annualize  the most recent
monthly distribution and reinvesting the resulting amount for a full year on the
basis of such ratio.  The  effective  distribution  rate will be higher than the
distribution rate because of the compounding effect of the assumed reinvestment.
Investors  should note that the Fund's yield is calculated  using a standardized
formula the income component of which is computed from the yields to maturity of
all debt obligations held by the Portfolio based on prescribed methods (with all
purchases  and sales of  securities  during such  period  included in the income
calculation on a settlement date basis),  whereas the distribution rate is based
on the Fund's last monthly  distribution which tends to be relatively stable and
may be more or less than the  amount of net  investment  income  and  short-term
capital gain  actually  earned by the Fund during the month (see  "Distributions
and Taxes").

    Investors should note that the investment results of the Fund will fluctuate
over time, and any  presentation of the Fund's current yield or total return for
any prior period should not be considered a representation of what an investment
may  earn or what an  investor's  yield  or total  return  may be in any  future
period.  If the expenses of the Fund or the  Portfolio  are paid by Eaton Vance,
the Fund's performance will be higher.

STATEMENT OF INTENTION AND ESCROW AGREEMENT
- ------------------------------------------------------------------------------
TERMS OF ESCROW.  If the  investor,  on an  application,  makes a  Statement  of
Intention to invest a specified amount over a thirteen month period, then out of
the initial  purchase (or  subsequent  purchases if  necessary) 5% of the dollar
amount specified on the application  shall be held in escrow by the escrow agent
in the form of shares (computed to the nearest full share at the public offering
price applicable to the initial purchase hereunder) registered in the investor's
name. All income  dividends and capital gains  distributions  on escrowed shares
will be paid to the investor or to the investor's order.

    When the minimum  investment so specified is completed,  the escrowed shares
will be delivered to the investor.  If the investor has an accumulation  account
the shares will remain on deposit under his account.

    If total  purchases  under this  Statement  of  Intention  are less than the
amount specified, the investor will promptly remit to EVD any difference between
the sales charge on the amount  specified and on the amount actually  purchased.
If the  investor  does not  within 20 days after  written  request by EVD or the
Authorized  Firm pay such  difference  in sales  charge,  the escrow  agent will
redeem an  appropriate  number of the  escrowed  shares in order to realize such
difference.  Full shares  remaining after any such redemption  together with any
excess cash proceeds of the shares so redeemed will be delivered to the investor
or to the investor's order by the escrow agent.

    In  signing  the  application,  the  investor  irrevocably  constitutes  and
appoints  the escrow agent as attorney to surrender  for  redemption  any or all
escrowed shares with full power of  substitution in the premises.

PROVISION FOR RETROACTIVE PRICE  ADJUSTMENT.  If total purchases made under this
Statement  are large  enough  to  qualify  for a lower  sales  charge  than that
applicable to the amount  specified,  all  transactions  will be computed at the
expiration  date of this  Statement  to give  effect  to the lower  charge.  Any
difference  in sales charge will be refunded to the investor in cash, or applied
to the  purchase of  additional  shares at the lower  charge if specified by the
investor.  This refund will be made by the Authorized Firm and by EVD. If at the
time of the  recomputation  a firm other than the  original  firm is placing the
orders,  the adjustment will be made only on those shares purchased  through the
firm then handling the account.
<PAGE>

INVESTMENT ADVISER OF
CALIFORNIA TAX FREE PORTFOLIO
Boston Management and Research
24 Federal Street
Boston, MA 02110

ADMINISTRATOR OF
EV TRADITIONAL CALIFORNIA
MUNICIPALS FUND
Eaton Vance Management
24 Federal Street
Boston, MA 02110

PRINCIPAL UNDERWRITER
Eaton Vance Distributors, Inc.
24 Federal Street
Boston, MA 02110
(800) 225-6265

CUSTODIAN
Investors Bank & Trust Company
24 Federal Street
Boston, MA 02110

TRANSFER AGENT
The Shareholder Services Group, Inc.
BOS725
P.O. Box 1559
Boston, MA 02104
(800) 262-1122

AUDITORS
Deloitte & Touche LLP
125 Summer Street
Boston, MA 02110

EV TRADITIONAL CALIFORNIA 
MUNICIPALS FUND
24 FEDERAL STREET
BOSTON, MA 02110

T-CAP

EV TRADITIONAL
CALIFORNIA
MUNICIPALS FUND

PROSPECTUS

NOVEMBER 25, 1994






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