PAINEWEBBER MUTUAL FUND TRUST
497, 1998-05-27
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                  PaineWebber California Tax-Free Income Fund
                   PaineWebber National Tax-Free Income Fund
                     PaineWebber Municipal High Income Fund
                   PaineWebber New York Tax-Free Income Fund
             1285 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK 10019
           PROSPECTUS  --  JULY 1, 1997, AS REVISED DECEMBER 23, 1997
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PaineWebber Tax-Free Bond Funds are designed for investors generally seeking
high current income exempt from federal income tax and, in some cases, certain
state and local personal income taxes. PaineWebber California Tax-Free Income
Fund invests primarily in investment grade bonds issued by the State of
California, its municipalities and public authorities. PaineWebber National
Tax-Free Income Fund invests primarily in investment grade bonds issued by
various states, municipalities and public authorities. PaineWebber Municipal
High Income Fund invests primarily in high yield, high risk, medium and lower
grade bonds issued by various states, municipalities and public authorities.
PaineWebber New York Tax-Free Income Fund invests primarily in investment grade
bonds issued by the State of New York, its municipalities and public
authorities.
 
This Prospectus concisely sets forth information that a prospective investor
should know about the Funds before investing. Please read it carefully and
retain a copy of this Prospectus for future reference.
 
A Statement of Additional Information dated July 1, 1997 has been filed with the
Securities and Exchange Commission and is legally part of this Prospectus. The
Statement of Additional Information can be obtained without charge, and further
inquiries can be made, by contacting an individual Fund, your investment
executive at PaineWebber or one of its correspondent firms or by calling
toll-free 1-800-647-1568. In addition, the Commission maintains a website
(http://www.sec.gov) that contains the Statement of Additional Information,
material incorporated by reference, and other information regarding registrants
that file electronically with the Commission.
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THE PAINEWEBBER FAMILY OF MUTUAL FUNDS
 
     The PaineWebber Family of Mutual Funds consists of six broad categories,
which are presented here. Generally, investors seeking to maximize return must
assume greater risk. The Funds in this Prospectus are in the TAX-FREE BOND
category.
 
    MONEY MARKET FUND for income and stability by investing in high-quality,
    short-term investments.
 
    BOND FUNDS for income by investing mainly in bonds.
 
    TAX-FREE BOND FUNDS for income exempt from federal income tax and, in some
    cases, state and local income tax, by investing in municipal bonds.
 
    ASSET ALLOCATION FUNDS for high total return by investing in stocks and
    bonds.
 
    STOCK FUNDS for long-term growth by investing mainly in equity securities.
 
    GLOBAL FUNDS for long-term growth by investing mainly in foreign stocks or
    high current income by investing mainly in global debt instruments.
 
A complete listing of the PaineWebber Family of Mutual Funds is found on the
back cover of this Prospectus.
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INVESTORS SHOULD RELY ON THE INFORMATION CONTAINED OR REFERRED TO IN THIS
PROSPECTUS. THE FUNDS AND THEIR DISTRIBUTOR HAVE NOT AUTHORIZED ANYONE TO
PROVIDE INVESTORS WITH INFORMATION THAT IS DIFFERENT. THE PROSPECTUS IS NOT AN
OFFER TO SELL SHARES OF THE FUNDS IN ANY JURISDICTION WHERE THE FUNDS OR THEIR
DISTRIBUTOR MAY NOT LAWFULLY SELL THOSE SHARES.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR
     ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                            CRIMINAL OFFENSE.
 
PAINEWEBBER MUNICIPAL HIGH INCOME FUND MAY INVEST PREDOMINANTLY, AND EACH OTHER
FUND MAY INVEST UP TO 35% OF ITS NET ASSETS, IN LOWER RATED MUNICIPAL
OBLIGATIONS, COMMONLY REFERRED TO AS MUNICIPAL 'JUNK BONDS.' MUNICIPAL
OBLIGATIONS OF THIS TYPE ARE CONSIDERED TO BE SPECULATIVE WITH RESPECT TO THE
PAYMENT OF INTEREST AND RETURN OF PRINCIPAL. PURCHASERS SHOULD CAREFULLY ASSESS
THE RISKS ASSOCIATED WITH AN INVESTMENT IN THESE FUNDS.
 
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                               Prospectus Page 1
 



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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
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                               TABLE OF CONTENTS
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<TABLE>
<CAPTION>
                                                                                     Page
                                                                                    -----
<S>                                                                                 <C>
The Funds at a Glance............................................................       3
 
Expense Table....................................................................       6
 
Financial Highlights.............................................................      10
 
Investment Objectives and Policies...............................................      18
 
Investment Philosophy and Process................................................      19
 
Performance......................................................................      20
 
The Funds' Investments...........................................................      24
 
Flexible Pricing'sm'.............................................................      30
 
How to Buy Shares................................................................      34
 
How to Sell Shares...............................................................      35
 
Other Services...................................................................      36
 
Management.......................................................................      37
 
Determining the Shares' Net Asset Value..........................................      39
 
Dividends and Taxes..............................................................      39
 
General Information..............................................................      41
 
Appendix.........................................................................      43
</TABLE>
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
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                             THE FUNDS  AT A GLANCE
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The Funds (each a 'Fund') offered by this Prospectus are not intended to provide
a complete or balanced investment program, but one or more of them may be
appropriate as a component of an investor's overall portfolio. Some common
reasons to invest in these Funds are to finance college educations, plan for
retirement or diversify a portfolio. The Funds are not suitable for tax-exempt
institutions or qualified retirement plans because those investors cannot take
advantage of the tax-exempt character of the Funds' dividends. When selling
shares, investors should be aware that they may get more or less for their
shares than they originally paid for them. As with any mutual fund, there is no
assurance that the Funds will achieve their goals.
 
CALIFORNIA TAX-FREE INCOME FUND
 
GOAL:  Current income that is exempt from federal income tax and California
personal income tax.
 
INVESTMENT OBJECTIVE:  High current income exempt from federal income tax and
California personal income tax, consistent with the preservation of capital and
liquidity within the Fund's quality standards.
 
WHO SHOULD INVEST:  Investors seeking current income that is exempt from federal
income tax and California personal income tax.
 
SIZE: On May 31, 1997, the Fund had over $155.1 million in assets.
 
NATIONAL TAX-FREE INCOME FUND
 
GOAL:  Current income that is exempt from federal income tax.
 
INVESTMENT OBJECTIVE:  High current income exempt from federal income tax,
consistent with the preservation of capital and liquidity within the Fund's
quality standards.
 
WHO SHOULD INVEST:  Investors seeking current income that is exempt from federal
income tax.
 
SIZE:  On May 31, 1997, the Fund had over $334 million in assets.
 
MUNICIPAL HIGH INCOME FUND
 
GOAL:  Current income that is exempt from federal income tax by investing
primarily in high yield, high risk medium and lower grade municipal securities.
 
INVESTMENT OBJECTIVE:  High current income exempt from federal income tax.
 
WHO SHOULD INVEST:  Investors seeking high current income that is exempt from
federal income tax and who can assume the greater risks associated with the
types of securities in which the Fund invests.
 
SIZE:  On May 31, 1997, the Fund had over $87 million in assets.
 
NEW YORK TAX-FREE INCOME FUND
 
GOAL:  Current income that is exempt from federal income tax and New York State
and New York City personal income taxes.
 
INVESTMENT OBJECTIVE:  High current income exempt from federal income tax and
from New York State and New York City personal income taxes.
 
WHO SHOULD INVEST:  Investors seeking current income that is exempt from federal
income tax and New York State and New York City personal income tax.
 
SIZE:  On May 31, 1997, the Fund had over $43.9 million in assets.
 
RISKS
 
Investors may lose money by investing in the Funds; your investment is not
guaranteed.
 
INTEREST RATE RISK.  The municipal bonds in which each Fund invests are subject
to interest rate risk, which means that their values and, therefore, the net
asset value of the Fund may be expected to fall when interest rates rise. Each
Fund attempts to reduce this risk through diversification, credit analysis and
attention to interest rate trends and other factors. However, efforts to limit
this risk may not be successful.
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
CREDIT RISK.  The value of the municipal securities in which each Fund invests
may be affected by many factors, including adverse changes in the issuer's own
financial condition or in economic conditions.
 
QUALITY RISK.  Below investment grade municipal securities in which Municipal
Income Fund may invest without limit are considered predominantly speculative
and involve major risk exposure to adverse conditions. California Tax-Free
Income Fund, National Tax-Free Income Fund and New York Tax-Free Income Fund may
each invest up to 35% of its net assets in these types of municipal securities.
Some lower-tier investment grade municipal securities also have speculative
characteristics.
 
MARKET RISK.  During periods of market uncertainty, the values of municipal
securities can become volatile.
 
CALIFORNIA OBLIGATIONS.  The concentration of California Tax-Free Income Fund's
investments in securities issued by the State of California, its municipalities
and public authorities may subject the Fund to greater risks than a fund that
has a broad range of investments. The State of California and many of its
agencies and local governments have been experiencing, and continue to
experience, financial difficulties, and the credit standings of California and
certain local governments have been, and could be further, reduced.
 
NEW YORK OBLIGATIONS.  The concentration of New York Tax-Free Income Fund's
investments in securities issued by the State of New York, its municipalities
and public authorities may subject the Fund to greater risks than a fund that
has a broad range of investments. The State of New York and many of its agencies
and local governments (including New York City) have been experiencing, and
continue to experience, financial difficulties and the credit standings of New
York, and certain local governments have been, and could be further, reduced.
 
DERIVATIVES.  Each Fund may use derivatives, such as options and futures in its
investment activities, each of which involve special risks.
 
MANAGEMENT
 
Mitchell Hutchins Asset Management Inc. ('Mitchell Hutchins'), an asset
management subsidiary of PaineWebber Incorporated ('PaineWebber'), is the
investment adviser and administrator of each Fund.
 
MINIMUM INVESTMENT
 
To open an account, investors need $1,000; to add to an account, investors need
only $100.
 
HOW TO PURCHASE SHARES OF THE FUNDS
 
Investors may select among these classes of shares:
 
CLASS A SHARES
 
The price is the net asset value plus the initial sales charge (the maximum
sales charge is 4% of the public offering price). Although investors pay an
initial sales charge when they buy Class A shares, the ongoing expenses for this
class are lower than the ongoing expenses of Class B and Class C shares.
 
CLASS B SHARES
 
The price is the net asset value. Investors do not pay an initial sales charge
when they buy Class B shares. As a result, 100% of their purchase is immediately
invested. However, Class B shares have higher ongoing expenses than Class A
shares. Depending upon how long they own the shares, investors may have to pay a
sales charge when they sell Class B shares. This sales charge is called a
'contingent deferred sales charge' and applies when investors sell their Class B
shares within six years after purchase. After six years, Class B shares convert
to Class A shares, which have lower ongoing expenses and no contingent deferred
sales charge.
 
CLASS C SHARES
 
The price is the net asset value. Investors do not pay an initial sales charge
when they buy Class C shares. As a result, 100% of their purchase is immediately
invested. However, Class C shares have higher ongoing expenses than Class A
shares. A contingent deferred sales charge of 0.75% is charged on shares sold
within one year
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
of purchase. Class C shares never convert to any other class of shares.
 
CLASS Y SHARES
 
Class Y shares are currently offered only to limited groups of investors. See
'How to Buy Shares.' Eligible investors may purchase Class Y shares of the Funds
as follows:
 
The price is the net asset value. Investors do not pay an initial sales charge
when they buy Class Y shares. As a result, 100% of their purchase is immediately
invested. Investors also do not pay a redemption fee or contingent deferred
sales charge when they sell Class Y shares.
 
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                               Prospectus Page 5





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                                  PAINEWEBBER
    CALIFORNIA  TAX-FREE  INCOME  FUND        NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
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                                 EXPENSE TABLE
- --------------------------------------------------------------------------------
 
The following tables are intended to assist investors in understanding the
expenses associated with investing in each class of shares of the Funds.
Expenses shown below represent those incurred for the most recent fiscal year.
 
SHAREHOLDER TRANSACTION EXPENSES
 
<TABLE>
<CAPTION>
                                                                           CLASS A    CLASS B    CLASS C     CLASS Y(1)
                                                                           -------    -------    -------    -------------
<S>                                                                        <C>        <C>        <C>        <C>
Maximum sales charge on purchases of shares (as a % of offering
  price)................................................................        4%       None       None          None
Sales charge on reinvested dividends (as a % of offering price).........      None       None       None          None
Maximum contingent deferred sales charge (as a % of offering price or
  net asset value at the time of sale, whichever is less)...............      None         5%      0.75%          None
Exchange fee............................................................      None       None       None          None
ANNUAL FUND OPERATING EXPENSES (AS A % OF AVERAGE NET ASSETS)
CALIFORNIA TAX-FREE INCOME FUND
Management fees.........................................................     0.50%      0.50%      0.50%         0.50%
12b-1 fees..............................................................     0.25       1.00       0.75           None
Other expenses..........................................................     0.22       0.24       0.24          0.22
                                                                           -------    -------    -------       ------
Total operating expenses................................................     0.97%      1.74%      1.49%         0.72%
                                                                           -------    -------    -------       ------
                                                                           -------    -------    -------       ------
NATIONAL TAX-FREE INCOME FUND
Management fees.........................................................     0.50%      0.50%      0.50%         0.50%
12b-1 fees..............................................................     0.25       1.00       0.75           None
Other expenses..........................................................     0.16       0.17       0.17          0.15
                                                                           -------    -------    -------       ------
Total operating expenses................................................     0.91%      1.67%      1.42%         0.65%
                                                                           -------    -------    -------       ------
                                                                           -------    -------    -------       ------
MUNICIPAL HIGH INCOME FUND
Management fees.........................................................     0.60%      0.60%      0.60%         0.60%
12b-1 fees..............................................................     0.25       1.00       0.75           None
Other expenses..........................................................     0.30       0.30       0.31          0.30
                                                                           -------    -------    -------       ------
Total operating expenses................................................     1.15%      1.90%      1.66%         0.90%
                                                                           -------    -------    -------       ------
                                                                           -------    -------    -------       ------
NEW YORK TAX-FREE INCOME FUND(2)
Management fees.........................................................     0.60%      0.60%      0.60%         0.60%
12b-1 fees..............................................................     0.25       1.00       0.75           None
Other expenses..........................................................     0.65       0.67       0.69          0.65
                                                                           -------    -------    -------       ------
Total operating expenses................................................     1.50%      2.27%      2.04%         1.25%
                                                                           -------    -------    -------       ------
                                                                           -------    -------    -------       ------
</TABLE>
 
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(1) For the fiscal year ended February 28, 1997, California Tax-Free Income
    Fund, Municipal High Income Fund and New York Tax-Free Income Fund had no
    Class Y shares outstanding; therefore, 'Other Expenses' and 'Total Operating
    Expenses' have been estimated.
 
(2) All expenses for New York Tax-Free Income Fund are those that would have
    been experienced by the Fund for the fiscal year ended February 28, 1997 had
    Mitchell Hutchins and PaineWebber not waived a portion of their fees.
 
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                                  PAINEWEBBER
    CALIFORNIA  TAX-FREE  INCOME  FUND        NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
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                                 EXPENSE TABLE
                                  (Continued)
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CLASS A SHARES: Sales charge waivers and a reduced sales charge purchase plan
are available. Purchases of $1 million or more are not subject to an initial
sales charge. However, if an investor sells these shares within one year after
purchase, a contingent deferred sales charge of 1% of the offering price or the
net asset value of the shares at the time of sale, whichever is less, is
imposed.

CLASS B SHARES: Sales charge waivers are available. The maximum 5% contingent
deferred sales charge applies to sales of shares during the first year after
purchase. The charge generally declines by 1% annually, reaching zero after six
years.

CLASS C SHARES: If an investor sells these shares within one year after
purchase, a contingent deferred sales charge of 0.75% of the offering price or
the net asset value of the shares at the time of sale, whichever is less, is
imposed.

CLASS Y SHARES: No initial or contingent deferred sales charge is imposed, nor
are Class Y shares subject to 12b-1 distribution or service fees. Class Y shares
may be purchased by participants in certain investment programs that are
sponsored by PaineWebber and that may invest in PaineWebber mutual funds ('PW
Programs'), when Class Y shares are purchased through that PW Program.
Participation in a PW Program is subject to an advisory fee at an annual rate of
no more than 1.5% of assets held through that PW Program. This account charge is
not included in the table because investors who are not PW Program participants
also are permitted to purchase Class Y shares.
 
12b-1 distribution fees are asset-based sales charges. Long-term Class B and
Class C shareholders may pay more in direct and indirect sales charges
(including 12b-1 distribution fees) than the economic equivalent of the maximum
front-end sales charge permitted by the National Association of Securities
Dealers, Inc. 12b-1 fees have two components, as follows:
 
<TABLE>
<CAPTION>
                                                                                    CLASS A    CLASS B    CLASS C    CLASS Y
                                                                                    -------    -------    -------    -------
<S>                                                                                 <C>        <C>        <C>        <C>
12b-1 service fees...............................................................     0.25%      0.25%      0.25%      None
12b-1 distribution fees..........................................................     None       0.75       0.50       None
</TABLE>
 
For more information, see 'Management' and 'Flexible Pricing'sm'.'
 
EXAMPLES OF EFFECT OF FUND EXPENSES
 
The following examples should assist investors in understanding various costs
and expenses they would incur as shareholders of a Fund. The assumed 5% annual
return shown in the examples is required by regulations of the Securities and
Exchange Commission ('SEC') applicable to all mutual funds. THESE EXAMPLES
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES. ACTUAL
EXPENSES OF A FUND MAY BE MORE OR LESS THAN THOSE SHOWN.
 
An investor would, directly or indirectly, pay the following expenses on a
$1,000 investment in a Fund, assuming a 5% annual return:
 
<TABLE>
<CAPTION>
                                                                           ONE YEAR   THREE YEARS   FIVE YEARS     TEN YEARS
                                                                           --------   -----------   -----------   -----------
<S>                                                                        <C>        <C>           <C>           <C>
CALIFORNIA TAX-FREE INCOME FUND
EXAMPLE
Class A..................................................................    $ 50        $  70         $  91         $ 154
Class B (Assuming sale of all shares at end of period)...................    $ 68        $  85         $ 114         $ 166
Class B (Assuming no sale of shares).....................................    $ 18        $  55         $  94         $ 166
Class C (Assuming sale of all shares at end of period)...................    $ 23        $  47         $  81         $ 178
Class C (Assuming no sale of shares).....................................    $ 15        $  47         $  81         $ 178
Class Y..................................................................    $  7        $  23         $  40         $  89
</TABLE>
 
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                                  PAINEWEBBER
    CALIFORNIA  TAX-FREE  INCOME  FUND        NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
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                                 EXPENSE TABLE
                                  (Continued)
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<TABLE>
<CAPTION>
                                                                           ONE YEAR   THREE YEARS   FIVE YEARS     TEN YEARS
                                                                           --------   -----------   -----------   -----------
<S>                                                                        <C>        <C>           <C>           <C>
NATIONAL TAX-FREE INCOME FUND
EXAMPLE
Class A..................................................................    $ 49        $  68         $  88         $ 147
Class B (Assuming sale of all shares at end of period)...................    $ 67        $  83         $ 111         $ 159
Class B (Assuming no sale of shares).....................................    $ 17        $  53         $  91         $ 159
Class C (Assuming sale of all shares at end of period)...................    $ 22        $  45         $  78         $ 170
Class C (Assuming no sale of shares).....................................    $ 14        $  45         $  78         $ 170
Class Y..................................................................    $  7        $  21         $  36         $  81
 
MUNICIPAL HIGH INCOME FUND
EXAMPLE
Class A..................................................................    $ 51        $  75         $ 101         $ 174
Class B (Assuming sale of all shares at end of period)...................    $ 69        $  90         $ 123         $ 185
Class B (Assuming no sale of shares).....................................    $ 19        $  60         $ 103         $ 185
Class C (Assuming sale of all shares at end of period)...................    $ 24        $  52         $  90         $ 197
Class C (Assuming no sale of shares).....................................    $ 17        $  52         $  90         $ 197
Class Y..................................................................    $  9        $  29         $  50         $ 111
</TABLE>
 
<TABLE>
<S>                                                                        <C>        <C>           <C>           <C>
NEW YORK TAX-FREE INCOME FUND
EXAMPLE
Class A..................................................................    $ 55        $  86         $ 119         $ 212
Class B (Assuming sale of all shares at end of period)...................    $ 73        $ 101         $ 142         $ 223
Class B (Assuming no sale of shares).....................................    $ 23        $  71         $ 122         $ 223
Class C (Assuming sale of all shares at end of period)...................    $ 28        $  64         $ 110         $ 237
Class C (Assuming no sale of shares).....................................    $ 21        $  64         $ 110         $ 237
Class Y..................................................................    $ 12        $  40         $  69         $ 151
</TABLE>
 
<TABLE>
<S>                                                                                                                        <C>
ASSUMPTIONS MADE IN THE EXAMPLES
  ALL CLASSES: Reinvestment of all dividends and distributions; percentage amounts listed under 'Annual Fund Operating
  Expenses' remain the same for years shown.
  CLASS A SHARES: Deduction of the maximum 4% initial sales charge at the time of purchase.
  CLASS B SHARES: Deduction of the maximum applicable contingent deferred sales charge at the time of redemption, which
  declines over a period of six years. Ten-year figures assume that Class B shares convert to Class A shares at the end
  of the sixth year.
  CLASS C SHARES: Deduction of a 0.75% contingent deferred sales charge for sales of shares within one year of
  purchase.
</TABLE>
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
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                              FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
CALIFORNIA TAX-FREE INCOME FUND
 
The following tables provide investors with data and ratios for one Class A,
Class B and Class C share for each of the periods shown. This information is
supplemented by the financial statements, accompanying notes and the report of
Ernst & Young LLP, independent auditors, which appear in the Fund's Annual
Report to Shareholders for the fiscal year ended February 28, 1997, and are
incorporated by reference into the Statement of Additional Information. The
financial statements and notes, as well as the information in the table below
relating to each of the four fiscal years in the period ended February 28, 1997,
the fiscal period ended February 28, 1993 and the fiscal year ended November 30,
1992 have been audited by Ernst & Young LLP. Further information about the
Fund's performance is included in the Annual Report to Shareholders, which may
be obtained without charge by calling 1-800-647-1568. The information appearing
below for periods prior to the year ended November 30, 1992 also has been
audited by Ernst & Young LLP, whose reports thereon were unqualified. The Fund
had no Class Y shares outstanding during the periods shown.
<TABLE>
<CAPTION>
                                               CALIFORNIA TAX-FREE INCOME FUND
                            ---------------------------------------------------------------------
                                                           CLASS A
                            ---------------------------------------------------------------------
                                                                                       FOR THE
                                            FOR THE YEARS ENDED                         THREE
                            ----------------------------------------------------        MONTHS
                                                                FEBRUARY 28,            ENDED
                            FEBRUARY 28,    FEBRUARY 29,    --------------------     FEBRUARY 28,
                                1997            1996          1995        1994           1993
                            ------------    ------------    --------    --------     ------------
<S>                         <C>             <C>             <C>         <C>          <C>
Net asset value,
 beginning of period.....     $    11.02      $    10.68    $  11.41    $  11.80       $  11.39
                              ----------      ----------    --------    --------       --------
Net investment income....           0.52            0.57        0.58        0.60           0.16
Net realized and
 unrealized gains
 (losses) from
 investments.............          (0.11)           0.34       (0.63)      (0.08)          0.58
                              ----------      ----------    --------    --------       --------
Net increase (decrease)
 from investment
 operations..............           0.41            0.91       (0.05)       0.52           0.74
                              ----------      ----------    --------    --------       --------
Dividends from net
 investment income.......          (0.52)          (0.57)      (0.58)      (0.60)         (0.16)
Distributions from net
 realized gains from
 investment
 transactions............        --              --            (0.10)      (0.31)         (0.17)
                              ----------      ----------    --------    --------       --------
Total dividends and
 distributions to
 shareholders............          (0.52)          (0.57)      (0.68)      (0.91)         (0.33)
                              ----------      ----------    --------    --------       --------
Net asset value, end of
 period..................     $    10.91      $    11.02    $  10.68    $  11.41       $  11.80
                              ----------      ----------    --------    --------       --------
                              ----------      ----------    --------    --------       --------
Total investment
 return (1)..............           3.92%           8.68%      (0.18)%      4.46%          6.52%
                              ----------      ----------    --------    --------       --------
                              ----------      ----------    --------    --------       --------
Ratios/Supplemental data:
   Net assets, end of
     period (000's)......     $  127,040      $  151,684    $178,234    $227,179       $247,025
   Expenses to average
     net assets..........           0.97%           0.94%       0.88%       0.90%          0.99%*
   Net investment income
     to average net
     assets..............           4.85%           5.21%       5.55%       5.10%          5.61%*
   Portfolio turnover
     rate................             73%             32%         11%         37%             3%
 

<PAGE>
 

<CAPTION>
 
                                          FOR THE YEARS ENDED NOVEMBER 30,
                         -------------------------------------------------------------------
                           1992       1991        1990        1989        1988        1987
                         --------   --------    --------    --------    --------    --------
<S>                       <C>      <C>         <C>         <C>         <C>         <C>
Net asset value,
 beginning of period.....$  11.13   $  10.94    $  10.95    $  10.67    $  10.40    $  11.23
                         --------   --------    --------    --------    --------    --------
Net investment income....    0.66       0.71        0.78        0.74        0.75        0.75
Net realized and
 unrealized gains
 (losses) from
 investments.............    0.29       0.22       (0.01)       0.28        0.27       (0.83)
                         --------   --------    --------    --------    --------    --------
Net increase (decrease)
 from investment
 operations..............    0.95       0.93        0.77        1.02        1.02       (0.08)
                         --------   --------    --------    --------    --------    --------
Dividends from net
 investment income.......   (0.66)     (0.71)      (0.78)      (0.74)      (0.75)      (0.75)
Distributions from net
 realized gains from
 investment
 transactions............   (0.03)     (0.03)      --          --          --          --
                         --------   --------    --------    --------    --------    --------
Total dividends and
 distributions to
 shareholders............   (0.69)     (0.74)      (0.78)      (0.74)      (0.75)      (0.75)
                         --------   --------    --------    --------    --------    --------
Net asset value, end of
 period..................$  11.39   $  11.13    $  10.94    $  10.95    $  10.67    $  10.40
                         --------   --------    --------    --------    --------    --------
                         --------   --------    --------    --------    --------    --------
Total investment
 return (1)..............    8.73%      8.84%       6.89%       9.85%      10.02%      (0.74)%
                         --------   --------    --------    --------    --------    --------
                         --------   --------    --------    --------    --------    --------
Ratios/Supplemental data:
   Net assets, end of
     period (000's)......$239,851   $231,987    $211,701    $200,398    $163,651    $158,272
   Expenses to average
     net assets..........    0.93%      0.83%       0.68%       0.76%       0.73%       0.71%
   Net investment income
     to average net
     assets..............    5.80%      6.46%       6.78%       6.82%       6.98%       6.96%
   Portfolio turnover
     rate................      25%         2%         23%          4%          8%         10%
</TABLE>
 
- ------------
 
'D' Commencement of issuance of shares
 
*   Annualized
 
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period reported, reinvestment of all dividends and
    distributions at net asset value on the payable dates and a sale at net
    asset value on the last day of each period reported. The figures do not
    include sales charges; results for each class would be lower if sales
    charges were included. Total investment return for periods of less than one
    year has not been annualized.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 10
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
- --------------------------------------------------------------------------------
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                  CALIFORNIA TAX-FREE INCOME FUND
    --------------------------------------------------------------------------------------------
                                              CLASS B
    --------------------------------------------------------------------------------------------
                                                        FOR THE                       FOR THE
                  FOR THE YEARS ENDED                    THREE         FOR THE         PERIOD
    -----------------------------------------------      MONTHS          YEAR      JULY 1, 1991'D'
                                    FEBRUARY 28,         ENDED          ENDED         THROUGH
    FEBRUARY 28,   FEBRUARY 29,   -----------------   FEBRUARY 28,   NOVEMBER 30,   NOVEMBER 30,
        1997           1996        1995      1994         1993           1992           1991
    ------------   ------------   -------   -------   ------------   ------------   ------------
  <S>              <C>            <C>       <C>       <C>            <C>            <C>
      $  11.03       $  10.69     $ 11.41   $ 11.81     $  11.39       $  11.14       $  10.95
        ------         ------     -------   -------       ------         ------         ------
          0.44           0.48        0.50      0.51         0.14           0.57           0.25
         (0.11)          0.34       (0.62)    (0.09)        0.59           0.28           0.19
        ------         ------     -------   -------       ------         ------         ------
          0.33           0.82       (0.12)     0.42         0.73           0.85           0.44
        ------         ------     -------   -------       ------         ------         ------
         (0.44)         (0.48)      (0.50)    (0.51)       (0.14)         (0.57)         (0.25)
          --             --         (0.10)    (0.31)       (0.17)         (0.03)        --
        ------         ------     -------   -------       ------         ------         ------
         (0.44)         (0.48)      (0.60)    (0.82)       (0.31)         (0.60)         (0.25)
        ------         ------     -------   -------       ------         ------         ------
      $  10.92       $  11.03     $ 10.69   $ 11.41     $  11.81       $  11.39       $  11.14
        ------         ------     -------   -------       ------         ------         ------
        ------         ------     -------   -------       ------         ------         ------
          3.14%          7.86%      (0.85)%    3.56%        6.50%          7.80%          3.69%
        ------         ------     -------   -------       ------         ------         ------
        ------         ------     -------   -------       ------         ------         ------
      $ 20,943       $ 27,175     $33,007   $41,979     $ 36,693       $ 30,205       $ 10,743
          1.74%          1.70%       1.64%     1.65%        1.74%*         1.68%          1.62%*
          4.08%          4.45%       4.78%     4.32%        4.81%*         4.91%          5.02%*
            73%            32%         11%       37%           3%            25%             2%
 
<CAPTION>
 
                                    CLASS C
  ---------------------------------------------------------------------------
                                                    FOR THE        FOR THE
               FOR THE YEARS ENDED                   THREE          PERIOD
  ---------------------------------------------      MONTHS     JULY 2, 1992'D'
                                FEBRUARY 28,         ENDED         THROUGH
  FEBRUARY 28, FEBRUARY 29,   -----------------   FEBRUARY 28,   NOVEMBER 30,
     1997          1996        1995      1994         1993           1992
  -----------  ------------   -------   -------   ------------   ------------
  <S>           <C>            <C>       <C>       <C>            <C>
  $    11.02     $  10.67     $ 11.40   $ 11.79     $  11.38       $  11.41
  ----------       ------     -------   -------       ------         ------
        0.47         0.51        0.53      0.54         0.14           0.21
       (0.12)        0.35       (0.63)    (0.08)        0.58          (0.03)
  ----------       ------     -------   -------       ------         ------
        0.35         0.86       (0.10)     0.46         0.72           0.18
  ----------       ------     -------   -------       ------         ------
       (0.47)       (0.51)      (0.53)    (0.54)       (0.14)         (0.21)
      --           --           (0.10)    (0.31)       (0.17)          --
  ----------       ------     -------   -------       ------         ------
       (0.47)       (0.51)      (0.63)    (0.85)       (0.31)         (0.21)
  ----------       ------     -------   -------       ------         ------
  $    10.90     $  11.02     $ 10.67   $ 11.40     $  11.79       $  11.38
  ----------       ------     -------   -------       ------         ------
  ----------       ------     -------   -------       ------         ------
        3.30%        8.22%      (0.70)%    3.91%        6.49%          1.28%
  ----------       ------     -------   -------       ------         ------
  ----------       ------     -------   -------       ------         ------
  $   17,624     $ 22,155     $28,217   $53,874     $ 39,029       $ 30,141
        1.49%        1.46%       1.40%     1.39%        1.48%*         1.39%*
        4.34%        4.69%       5.05%     4.55%        5.06%*         4.79%*
          73%          32%         11%       37%           3%            25%
</TABLE>
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 11






<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
- --------------------------------------------------------------------------------
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
NATIONAL TAX-FREE INCOME FUND
 
The following tables provide investors with data and ratios for one Class A,
Class B, Class C and Class Y share for each of the periods shown. This
information is supplemented by the financial statements, accompanying notes and
the report of Ernst & Young LLP, independent auditors, which appear in the
Fund's Annual Report to Shareholders for the fiscal year ended February 28,
1997, and are incorporated by reference into the Statement of Additional
Information. The financial statements and notes, as well as the information in
the table below relating to each of the four fiscal years in the period ended
February 28, 1997, the fiscal period ended February 28, 1993 and the fiscal year
ended November 30, 1992 have been audited by Ernst & Young LLP. Further
information about the Fund's performance is included in the Annual Report to
Shareholders, which may be obtained without charge by calling 1-800-647-1568.
The information appearing below for periods prior to the year ended November 30,
1992 also has been audited by Ernst & Young LLP, whose reports thereon were
unqualified.
<TABLE>
<CAPTION>
                                               NATIONAL TAX-FREE INCOME FUND
                           ----------------------------------------------------------------------
                                                          CLASS A
                           ----------------------------------------------------------------------
                                                                                       FOR THE
                                            FOR THE YEARS ENDED                         THREE
                           ------------------------------------------------------       MONTHS
                                                                 FEBRUARY 28,           ENDED
                           FEBRUARY 28,    FEBRUARY 29,      --------------------    FEBRUARY 28,
                               1997            1996            1995        1994          1993
                           ------------    ------------      --------    --------    ------------
<S>                        <C>             <C>               <C>         <C>         <C>
Net asset value,
 beginning of period.....    $  11.64        $  11.26        $  12.00    $  12.09      $  11.67
                             --------        --------        --------    --------      --------
Net investment income....        0.55            0.58            0.63        0.64          0.17
Net realized and
 unrealized gains
 (losses) from
 investments.............       (0.09)           0.39           (0.73)       0.03          0.55
                             --------        --------        --------    --------      --------
Net increase (decrease)
 from investment
 operations..............        0.46            0.97           (0.10)       0.67          0.72
                             --------        --------        --------    --------      --------
Dividends from net
 investment income.......       (0.55)          (0.59)          (0.63)      (0.64)        (0.17)
Distributions from net
 realized gains from
 investment
 transactions............          --              --           (0.01)      (0.12)        (0.13)
                             --------        --------        --------    --------      --------
Total dividends and
 distributions to
 shareholders............       (0.55)          (0.59)          (0.64)      (0.76)        (0.30)
                             --------        --------        --------    --------      --------
Net asset value, end of
 period..................    $  11.55        $  11.64        $  11.26    $  12.00      $  12.09
                             --------        --------        --------    --------      --------
Total investment return
 (1).....................        4.14%           8.75%          (0.63)%      5.65%         6.31%
                             --------        --------        --------    --------      --------
                             --------        --------        --------    --------      --------
Ratios/Supplemental data:
   Net assets, end of
    period (000's).......    $263,425        $315,899        $346,579    $432,825      $419,596
   Expenses to average
    net assets...........        0.91%           0.93%(2)       0.88%        0.89%         0.88%*
   Net investment income
    to average net
    assets...............        4.85%           5.06%(2)       5.62%        5.28%         5.86%*
   Portfolio turnover
    rate.................          81%             74%            60%          16%            5%
 

<PAGE>
 

<CAPTION>
 
                                           FOR THE YEARS ENDED NOVEMBER 30,
                         ---------------------------------------------------------------------
                           1992       1991        1990        1989        1988          1987
                         --------   --------    --------    --------    --------      --------
<S>                      <C>        <C>         <C>         <C>         <C>           <C>
Net asset value,
 beginning of period.....$  11.40   $  11.20    $  11.21    $  10.98    $  10.64      $  11.48
                         --------   --------    --------    --------    --------      --------
Net investment income....    0.71       0.76        0.78        0.81        0.79          0.78
Net realized and
 unrealized gains
 (losses) from
 investments.............    0.31       0.20       (0.01)       0.23        0.34         (0.84)
                         --------   --------    --------    --------    --------      --------
Net increase (decrease)
 from investment
 operations..............    1.02       0.96        0.77        1.04        1.13         (0.06)
                         --------   --------    --------    --------    --------      --------
Dividends from net
 investment income.......   (0.71)     (0.76)      (0.78)      (0.81)      (0.79)        (0.78)
Distributions from net
 realized gains from
 investment
 transactions............   (0.04)        --          --          --          --            --
                         --------   --------    --------    --------    --------      --------
Total dividends and
 distributions to
 shareholders............   (0.75)     (0.76)      (0.78)      (0.81)      (0.79)        (0.78)
                         --------   --------    --------    --------    --------      --------
Net asset value, end of
 period..................$  11.67   $  11.40    $  11.20    $  11.21    $  10.98      $  10.64
                         --------   --------    --------    --------    --------      --------
                         --------   --------    --------    --------    --------      --------
Total investment return
 (1).....................    9.21%      8.85%       7.17%       9.77%      10.85%        (0.50)%
                         --------   --------    --------    --------    --------      --------
                         --------   --------    --------    --------    --------      --------
Ratios/Supplemental data:
   Net assets, end of
    period (000's).......$396,587   $366,300    $343,539    $333,314    $307,954      $322,325
   Expenses to average
    net assets...........    0.91%      0.83%       0.69%       0.62%       0.75%        0.78%
   Net investment income
    to average net
    assets...............    6.13%      6.66%       7.08%       7.32%       7.14%        7.07%
   Portfolio turnover
    rate.................      21%        27%         24%         11%          1%          16%
</TABLE>
 
- ------------
 
'D' Commencement of issuance of shares
 
*   Annualized
 
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period reported, reinvestment of all dividends and
    distributions at net asset value on the payable dates and a sale at net
    asset value on the last day of each period reported. The figures do not
    include sales charges; results for class A, B and C would be lower if sales
    charges were included. Total investment return for periods of less than one
    year has not been annualized.
 
(2) These ratios include non-recurring acquisition expenses of 0.03%.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 12
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
- --------------------------------------------------------------------------------
 
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                NATIONAL TAX-FREE INCOME FUND
- ----------------------------------------------------------------------------------------------
                                           CLASS B
- ----------------------------------------------------------------------------------------------
                                                                                    FOR THE
                                                       FOR THE                       PERIOD
               FOR THE YEARS ENDED                      THREE         FOR THE       JULY 1,
- -------------------------------------------------       MONTHS          YEAR        1991'D'
                                  FEBRUARY 28,          ENDED          ENDED        THROUGH
FEBRUARY 28,   FEBRUARY 29,    ------------------    FEBRUARY 28,   NOVEMBER 30,  NOVEMBER 30,
    1997           1996         1995       1994          1993           1992          1991
- ------------   ------------    -------    -------    ------------   ------------  ------------
<S>            <C>             <C>        <C>        <C>            <C>           <C>
    $ 11.64      $  11.26      $ 11.99    $ 12.08      $  11.67       $  11.40       $11.19
     ------        ------      -------    -------        ------         ------        -----
       0.46          0.49         0.54       0.55          0.15           0.62         0.27
      (0.09)         0.39        (0.72)      0.03          0.54           0.31         0.21
     ------        ------      -------    -------        ------         ------        -----
       0.37          0.88        (0.18)      0.58          0.69           0.93         0.48
     ------        ------      -------    -------        ------         ------        -----
      (0.46)        (0.50)       (0.54)     (0.55)        (0.15)         (0.62)       (0.27)
         --            --        (0.01)     (0.12)        (0.13)         (0.04)          --
     ------        ------      -------    -------        ------         ------        -----
      (0.46)        (0.50)       (0.55)     (0.67)        (0.28)         (0.66)       (0.27)
     ------        ------      -------    -------        ------         ------        -----
    $ 11.55      $  11.64      $ 11.26    $ 11.99      $  12.08       $  11.67       $11.40
     ------        ------      -------    -------        ------         ------        -----
     ------        ------      -------    -------        ------         ------        -----
       3.35%         7.94%       (1.29%      4.87%         6.02%          8.36%        4.06%
     ------        ------      -------    -------        ------         ------        -----
     ------        ------      -------    -------        ------         ------        -----
    $40,949      $ 51,546      $58,958    $70,988      $ 50,064       $ 39,564       $8,620
       1.67%         1.68%(2)     1.64%      1.63%         1.63%*         1.65%        1.65%*
       4.09%         4.31%(2)     4.86%      4.50%         5.08%*         5.16%        5.26%*
         81%           74%          60%        16%            5%            21%          27%
 
<CAPTION>

                                       CLASS C                                                     CLASS Y
- ------------------------------------------------------------------------------------    ------------------------------
                                                                          FOR THE
                                                          FOR THE          PERIOD                       FOR THE PERIOD
             FOR THE YEARS ENDED                            THREE          JULY 2,         FOR THE        NOVEMBER 3,
- ----------------------------------------------------       MONTHS         1992'D'           YEAR           1995'D'
                                    FEBRUARY 28,           ENDED          THROUGH          ENDED           THROUGH
 FEBRUARY 28,  FEBRUARY 29,     --------------------    FEBRUARY 28,    NOVEMBER 30,    FEBRUARY 28,     FEBRUARY 29,
     1997          1996           1995        1994          1993            1992            1997             1996
- -------------  ------------     --------    --------    ------------    ------------    ------------    --------------
  <S>          <C>              <C>         <C>         <C>             <C>             <C>             <C>
     $ 11.64     $  11.26       $  12.00    $  12.09      $  11.67        $  11.71         $11.65           $11.62
      ------       ------       --------    --------        ------          ------          -----            -----
        0.49         0.52           0.57        0.58          0.15            0.23           0.58             0.19
       (0.09)        0.39          (0.73)       0.03          0.55           (0.04)         (0.10)            0.01
      ------       ------       --------    --------        ------          ------          -----            -----
        0.40         0.91          (0.16)       0.61          0.70            0.19           0.48             0.20
      ------       ------       --------    --------        ------          ------          -----            -----
       (0.49)       (0.53)         (0.57)      (0.58)        (0.15)          (0.23)         (0.58)           (0.17)
          --           --          (0.01)      (0.12)        (0.13)             --             --               --
      ------       ------       --------    --------        ------          ------          -----            -----
       (0.49)       (0.53)         (0.58)      (0.70)        (0.28)          (0.23)         (0.58)           (0.17)
      ------       ------       --------    --------        ------          ------          -----            -----
     $ 11.55     $  11.64       $  11.26    $  12.00      $  12.09        $  11.67         $11.55           $11.65
      ------       ------       --------    --------        ------          ------          -----            -----
      ------       ------       --------    --------        ------          ------          -----            -----
        3.61%        8.19%         (1.13)%      5.13%         6.18%           1.41%          4.32%            1.70%
      ------       ------       --------    --------        ------          ------          -----            -----
      ------       ------       --------    --------        ------          ------          -----            -----
     $59,652     $ 75,076       $101,642    $187,778      $138,989        $105,854         $  246           $  341
        1.42%        1.45%(2)       1.40%       1.37%         1.37%*          1.42%*         0.65%            0.64%(2)*
        4.34%        4.57%(2)       5.13%       4.75%         5.30%*          5.17%*         5.13%            5.19%(2)*
          81%          74%            60%         16%            5%             21%            81%              74%
 
</TABLE>
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 13








<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
- --------------------------------------------------------------------------------
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
MUNICIPAL HIGH INCOME FUND
The following tables provide investors with data and ratios for one Class A,
Class B and Class C share for each of the periods shown. This information is
supplemented by the financial statements, accompanying notes and the report of
Ernst & Young LLP, independent auditors, which appear in the Fund's Annual
Report to Shareholders for the fiscal year ended February 28, 1997, and are
incorporated by reference into the Statement of Additional Information. The
financial statements and notes, as well as the information in the table below
relating to each of the five fiscal years in the period ended February 28, 1997
have been audited by Ernst & Young LLP. Further information about the Fund's
performance is included in the Annual Report to Shareholders, which may be
obtained without charge by calling 1-800-647-1568. The information appearing
below for periods prior to the year ended February 28, 1993 also has been
audited by Ernst & Young LLP, whose reports thereon were unqualified. The Fund
had no Class Y shares outstanding during the periods shown.
<TABLE>
<CAPTION>
                                         MUNICIPAL HIGH INCOME FUND
                          ---------------------------------------------------------
                                                   CLASS A
                          ---------------------------------------------------------
                                             FOR THE YEARS ENDED
                          ---------------------------------------------------------
                                                               FEBRUARY 28,
                          FEBRUARY 28,   FEBRUARY 29,   ---------------------------
                              1997           1996        1995      1994      1993
                          ------------   ------------   -------   -------   -------
<S>                       <C>            <C>            <C>       <C>       <C>
Net asset value,
 beginning of period.....   $  10.29       $   9.92     $ 10.77   $ 10.96   $ 10.29
                            --------       --------     -------   -------   -------
Net investment income....       0.56           0.62        0.59      0.61      0.67
Net realized and
 unrealized gains
 (losses) from
 investments.............       0.10           0.37       (0.82)     0.01      0.81
                            --------       --------     -------   -------   -------
Net increase (decrease)
 from investment
 operations..............       0.66           0.99       (0.23)     0.62      1.48
                            --------       --------     -------   -------   -------
Dividends from net
 investment income.......      (0.56)         (0.62)      (0.59)    (0.61)    (0.67)
Distributions from net
 realized gains from
 investment
 transactions............         --             --       (0.03)    (0.20)    (0.14)
                            --------       --------     -------   -------   -------
Total dividends and
 distributions to
 shareholders............      (0.56)         (0.62)      (0.62)    (0.81)    (0.81)
                            --------       --------     -------   -------   -------
Net asset value, end of
 period..................   $  10.39       $  10.29     $  9.92   $ 10.77   $ 10.96
                            --------       --------     -------   -------   -------
                            --------       --------     -------   -------   -------
Total investment
 return(1)...............       6.61%         10.18%      (2.03)%    5.77%    15.05%
                            --------       --------     -------   -------   -------
                            --------       --------     -------   -------   -------
Ratios/Supplemental data:
 Net assets, end of
   period (000's)........   $ 52,593       $ 57,280     $63,287   $82,248   $82,251
 Expenses to average net
   assets, net of waivers
   from adviser..........       1.15%          1.10%       1.13%     1.03%     0.87%
 Expenses to average net
   assets, before waivers
   from adviser..........       1.15%          1.10%       1.13%     1.16%     1.29%
 Net investment income to
   average net assets,
   net of waivers from
   adviser...............       5.49%          5.94%       5.96%     5.52%     6.31%
 Net investment income to
   average net assets,
   before waivers from
   adviser...............       5.49%          5.94%       5.96%     5.39%     5.89%
 Portfolio turnover
   rate..................         64%            48%         28%       23%       10%
 

<PAGE>
 

<CAPTION>
 
                                                                        FOR THE PERIOD
                                              FEBRUARY 28,             JUNE 23, 1987'D'
                         FEBRUARY 29,  ---------------------------            TO
                             1992       1991      1990      1989       FEBRUARY 29, 1988
                         ------------  -------   -------   -------   ---------------------
<S>                       <C>          <C>       <C>       <C>       <C>
Net asset value,
 beginning of period.....    $  9.92   $ 10.00   $  9.91   $  9.80          $  9.58
                             --------   -------   -------   -------          -------
Net investment income....       0.71      0.72      0.74      0.75             0.50
Net realized and
 unrealized gains
 (losses) from
 investments.............       0.44     (0.08)     0.09      0.11             0.22
                             --------   -------   -------   -------          -------
Net increase (decrease)
 from investment
 operations..............       1.15      0.64      0.83      0.86             0.72
                             --------   -------   -------   -------          -------
Dividends from net
 investment income.......      (0.71)    (0.72)    (0.74)    (0.75)           (0.50)
Distributions from net
 realized gains from
 investment
 transactions............      (0.07)       --        --        --               --
                             --------   -------   -------   -------          -------
Total dividends and
 distributions to
 shareholders............      (0.78)    (0.72)    (0.74)    (0.75)           (0.50)
                             --------   -------   -------   -------          -------
Net asset value, end of
 period..................    $  10.29   $  9.92   $ 10.00   $  9.91          $  9.80
                             --------   -------   -------   -------          -------
                             --------   -------   -------   -------          -------
Total investment
 return(1)...............       11.94%     6.69%     8.74%     9.11%            7.23%
                             --------   -------   -------   -------          -------
                             --------   -------   -------   -------          -------
Ratios/Supplemental data:
 Net assets, end of
   period (000's)........  $  68,830   $62,559   $61,067   $54.512          $48,515
 Expenses to average net
   assets, net of waivers
   from adviser..........       0.75%     0.69%     0.65%     0.60%            0.12%*
 Expenses to average net
   assets, before waivers
   from adviser..........       1.25%     1.54%     1.49%     1.46%            1.40%*
 Net investment income to
   average net assets,
   net of waivers from
   adviser...............       6.99%     7.32%     7.35%     7.64%            7.63%*
 Net investment income to
   average net assets,
   before waivers from
   adviser...............       6.49%     6.47%     6.51%     6.78%            6.35%*
 Portfolio turnover
   rate..................         45%       20%       17%       14%               0%
</TABLE>
 
- ------------
 
'D' Commencement of issuance of shares
 
*   Annualized
 
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period, reinvestment of all dividends and distributions at
    net asset value on the payable dates and a sale at net asset value on the
    last day of each period reported. The figures do not include sales charges;
    results for each class would be lower if sales charges were included. Total
    investment return for periods of less than one year has not been annualized.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 14
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
- --------------------------------------------------------------------------------
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                           MUNICIPAL HIGH INCOME FUND
  -----------------------------------------------------------------------------
                                     CLASS B
  -----------------------------------------------------------------------------
                                                                 FOR THE PERIOD
                       FOR THE YEARS ENDED                          JULY 1,
  -------------------------------------------------------------     1991'D'
                                         FEBRUARY 28,               THROUGH
  FEBRUARY 28,   FEBRUARY 29,   -------------------------------   FEBRUARY 29,
      1997           1996        1995        1994        1993         1992
  ------------   ------------   -------     -------     -------  --------------
<S>              <C>            <C>         <C>         <C>      <C>
    $  10.29       $   9.92     $ 10.76     $ 10.96     $ 10.29     $  10.05
    --------       --------     -------     -------     -------      -------
        0.48           0.54        0.52        0.52        0.59         0.42
        0.10           0.37       (0.81)         --        0.81         0.31
    --------       --------     -------     -------     -------      -------
        0.58           0.91       (0.29)       0.52        1.40         0.73
    --------       --------     -------     -------     -------      -------
       (0.48)         (0.54)      (0.52)      (0.52)      (0.59)       (0.42)
          --             --       (0.03)      (0.20)      (0.14)       (0.07)
    --------       --------     -------     -------     -------      -------
       (0.48)         (0.54)      (0.55)      (0.72)      (0.73)       (0.49)
    --------       --------     -------     -------     -------      -------
    $  10.39       $  10.29     $  9.92     $ 10.76     $ 10.96     $  10.29
    --------       --------     -------     -------     -------      -------
    --------       --------     -------     -------     -------      -------
        5.82%          9.36%      (2.67)%      4.88%      14.81%        6.89%
    --------       --------     -------     -------     -------      -------
    --------       --------     -------     -------     -------      -------
    $ 19,427       $ 23,868     $25,823     $32,287     $22,922     $  8,176
        1.90%          1.85%       1.87%       1.79%       1.63%        1.50%*
        1.90%          1.85%       1.87%       1.90%       2.01%        1.98%*
        4.73%          5.19%       5.21%       4.72%       5.48%        5.80%*
        4.73%          5.19%       5.21%       4.61%       5.10%        5.32%*
          64%            48%         28%         23%         10%          46%
 
<CAPTION>
 
                            CLASS C
  ------------------------------------------------------------
                                                FOR THE PERIOD
             FOR THE YEARS ENDED                   JULY 2,
  ------------------------------------------       1992'D'
  FEBRUARY                   FEBRUARY 28,          THROUGH
    28,    FEBRUARY 29,   ------------------     FEBRUARY 28,
   1997        1996        1995       1994           1993
  -------  ------------   -------    -------    --------------
<S>        <C>            <C>        <C>        <C>
  $10.29     $   9.92     $ 10.77    $ 10.96       $  10.50
  -------  ------------   -------    -------        -------
    0.51         0.56        0.55       0.55           0.36
    0.10         0.37       (0.82)      0.01           0.47
  -------  ------------   -------    -------        -------
    0.61         0.93       (0.27)      0.56           0.83
  -------  ------------   -------    -------        -------
   (0.51)       (0.56)      (0.55)     (0.55)         (0.36)
      --           --       (0.03)     (0.20)         (0.01)
  -------  ------------   -------    -------        -------
   (0.51)       (0.56)      (0.58)     (0.75)         (0.37)
  -------  ------------   -------    -------        -------
  $10.39     $  10.29     $  9.92    $ 10.77       $  10.96
  -------  ------------   -------    -------        -------
  -------  ------------   -------    -------        -------
    6.08%        9.64%      (2.51)%     5.24%          7.72%
  -------  ------------   -------    -------        -------
  -------  ------------   -------    -------        -------
  $16,967    $ 20,700     $23,158    $35,872       $ 21,638
     1.66%       1.60%       1.63%      1.54%          1.40%*
     1.66%       1.60%       1.63%      1.64%          1.69%*
     4.98%       5.45%       5.48%      4.95%          5.26%*
     4.98%       5.45%       5.48%      4.85%          4.97%*
       64%         48%         28%        23%            10%
</TABLE>
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 15






<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                              FINANCIAL HIGHLIGHTS
                                  (Continued)
- --------------------------------------------------------------------------------
 
NEW YORK TAX-FREE INCOME FUND
The following tables provide investors with data and ratios for one Class A,
Class B and Class C share for each of the periods shown. This information is
supplemented by the financial statements, accompanying notes and the report of
Ernst & Young LLP, independent auditors, which appear in the Fund's Annual
Report to Shareholders for the fiscal year ended February 28, 1997 and are
incorporated by reference into the Statement of Additional Information. The
financial statements and notes, as well as the information in the table below
relating to each of the five fiscal years in the period ended February 28, 1997
have been audited by Ernst & Young LLP. Further information about the Fund's
performance is included in the Annual Report to Shareholders, which may be
obtained without charge by calling 1-800-647-1568. The information appearing
below for periods prior to the year ended February 28, 1993 also has been
audited by Ernst & Young LLP, whose reports thereon were unqualified. The Fund
had no Class Y shares outstanding during the periods shown.
<TABLE>
<CAPTION>
                                          NEW YORK TAX-FREE INCOME FUND
                         ---------------------------------------------------------------
                                                     CLASS A
                         ---------------------------------------------------------------
                                               FOR THE YEARS ENDED
                         ---------------------------------------------------------------
                                                                   FEBRUARY 28,
                         FEBRUARY 28,    FEBRUARY 29,      -----------------------------
                             1997            1996           1995       1994       1993
                         ------------    ------------      -------    -------    -------
 
<S>                      <C>             <C>               <C>        <C>        <C>
Net asset value,
 beginning of period.....   $  10.71       $  10.27        $ 11.03    $ 10.99    $ 10.12
                            --------       --------        -------    -------    -------
Net investment income....       0.51           0.54           0.54       0.57       0.63
Net realized and
 unrealized gains
 (losses) from
 investments.............      (0.05)          0.45          (0.66)      0.07       0.87
                            --------       --------        -------    -------    -------
Net increase (decrease)
 from investment
 operations..............       0.46           0.99          (0.12)      0.64       1.50
                            --------       --------        -------    -------    -------
Dividends from net
 investment income.......      (0.51)         (0.55)         (0.54)     (0.57)     (0.63)
Distributions from net
 realized gains from
 investment
 transactions............     --             --              (0.10)     (0.03)     --
                            --------       --------        -------    -------    -------
Total dividends and
 distributions to
 shareholders............      (0.51)         (0.55)         (0.64)     (0.60)     (0.63)
                            --------       --------        -------    -------    -------
Net asset value, end of
 period..................   $  10.66       $  10.71        $ 10.27    $ 11.03    $ 10.99
                            --------       --------        -------    -------    -------
                            --------       --------        -------    -------    -------
Total investment return
 (1).....................       4.49%          9.83%         (0.83)%     5.89%     15.44%
                            --------       --------        -------    -------    -------
                            --------       --------        -------    -------    -------
 
Ratios/Supplemental data:
Net assets, end of period
 (000's).................   $ 23,160       $ 28,734        $32,475    $45,033    $43,443
Expenses to average net
 assets, net of waivers
 and reimbursements from
 adviser.................       1.02%          1.02%          1.01%      0.75%      0.34%
Expenses to average net
 assets, before waivers
 and reimbursements from
 adviser.................       1.50%          1.15%          1.26%      1.25%      1.47%
Net investment income to
 average net assets, net
 of waivers and
 reimbursements from
 adviser.................       4.91%          5.11%          5.38%      5.13%      6.07%
Net investment income to
 average net assets,
 before waivers and
 reimbursements from
 adviser.................       4.42%          4.98%          5.13%      4.63%      4.94%
Portfolio turnover
 rate....................         40%            13%             6%         8%         6%
 

<PAGE>
 

<CAPTION>
 
                                           FEBRUARY 28,          FOR THE PERIOD
                         FEBRUARY 29,   ------------------    SEPTEMBER 30, 1988'D'
                             1992        1991       1990      TO FEBRUARY 28, 1989
                         ------------   -------    -------    ---------------------
<S>                      <C>            <C>        <C>        <C>
Net asset value,
 beginning of period.....    $  9.76    $  9.72    $  9.59           $  9.60
                             -------    -------    -------            ------
Net investment income....       0.66       0.67       0.70              0.28
Net realized and
 unrealized gains
 (losses) from
 investments.............       0.36       0.04       0.13             (0.01)
                             -------    -------    -------            ------
Net increase (decrease)
 from investment
 operations..............       1.02       0.71       0.83              0.27
                             -------    -------    -------            ------
Dividends from net
 investment income.......      (0.66)     (0.67)     (0.70)            (0.28)
Distributions from net
 realized gains from
 investment
 transactions............       --         --         --                --
                             -------    -------    -------            ------
Total dividends and
 distributions to
 shareholders............      (0.66)     (0.67)     (0.70)            (0.28)
                             -------    -------    -------            ------
Net asset value, end of
 period..................    $ 10.12    $  9.76    $  9.72           $  9.59
                             -------    -------    -------            ------
                             -------    -------    -------            ------
Total investment return
 (1).....................      10.80%      7.59%      8.94%             2.25%
                             -------    -------    -------            ------
                             -------    -------    -------            ------
Ratios/Supplemental data:
Net assets, end of period
 (000's).................$    35,961    $30,173    $21,999           $11,222
Expenses to average net
 assets, net of waivers
 and reimbursements from
 adviser.................       0.25%      0.21%      0.00%             0.00%*
Expenses to average net
 assets, before waivers
 and reimbursements from
 adviser.................       1.53%      1.84%      2.20%             3.04%*
Net investment income to
 average net assets, net
 of waivers and
 reimbursements from
 adviser.................       6.65%      6.93%      7.07%             6.96%*
Net investment income to
 average net assets,
 before waivers and
 reimbursements from
 adviser.................       5.37%      5.30%      4.87%             3.92%*
Portfolio turnover
 rate....................          6%         3%         0%             0.00%*
</TABLE>
 
- ------------
 
'D' Commencement of issuance of shares
 
*   Annualized
 
(1) Total investment return is calculated assuming a $1,000 investment on the
    first day of each period reported, reinvestment of all dividends and
    distributions at net asset value on the payable dates, and a sale at net
    asset value on the last day of each period reported. The figures do not
    include sales charges; results for each class would be lower if sales
    charges were included. Total investment return for periods of less than one
    year has not been annualized.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 16
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                              FINANCIAL HIGHLIGHTS
                                  (Concluded)
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                              NEW YORK TAX-FREE INCOME FUND
- -----------------------------------------------------------------------------------------
                                         CLASS B
- -----------------------------------------------------------------------------------------
                                                                           FOR THE PERIOD
                          FOR THE YEARS ENDED                                 JULY 1,
- ------------------------------------------------------------------------      1991'D'
                                                   FEBRUARY 28,               THROUGH
      FEBRUARY 28,         FEBRUARY 29,    -----------------------------    FEBRUARY 29,
          1997                 1996         1995       1994       1993          1992
- -------------------------  ------------    -------    -------    -------   --------------
 
<S>                        <C>             <C>        <C>        <C>       <C>
                $  10.71     $  10.27      $ 11.03    $ 10.98    $ 10.12       $ 9.81
                --------       ------      -------    -------    -------       ------
                    0.44         0.47         0.47       0.49       0.56         0.39
                   (0.06)        0.44        (0.66)      0.08       0.86         0.31
                --------       ------      -------    -------    -------       ------
                    0.38         0.91        (0.19)      0.57       1.42         0.70
                --------       ------      -------    -------    -------       ------
                   (0.44)       (0.47)       (0.47)     (0.49)     (0.56)       (0.39)
                   --             --         (0.10)     (0.03)     --            --
                --------       ------      -------    -------    -------       ------
                   (0.44)       (0.47)       (0.57)     (0.52)     (0.56)       (0.39)
                --------       ------      -------    -------    -------       ------
                $  10.65     $  10.71      $ 10.27    $ 11.03    $ 10.98       $10.12
                --------       ------      -------    -------    -------       ------
                --------       ------      -------    -------    -------       ------
                    3.62%        9.01%       (1.57)%     5.19%     14.35%        6.80%
                --------       ------      -------    -------    -------       ------
                --------       ------      -------    -------    -------       ------
 
                $  9,462     $ 11,862      $14,660    $19,193    $13,776       $6,026
                    1.76%        1.77%        1.76%      1.51%      1.10%        1.00%*
                    2.27%        1.89%        2.01%      1.99%      2.19%        2.20%*
 
                    4.16%        4.36%        4.63%      4.34%      5.22%        5.59%*
 
                    3.65%        4.24%        4.83%      3.86%      4.13%        4.39%*
                      40%          13%           6%         8%         6%           6%
 
<CAPTION>
 
                                     CLASS C
- -----------------------------------------------------------------------------
                                                              FOR THE PERIOD
                          FOR THE YEARS ENDED                    JULY 2,
- ------------------------------------------------------------     1992'D'
                                             FEBRUARY 28,         THROUGH
             FEBRUARY 28,  FEBRUARY 29,   -----------------    FEBRUARY 28,
                 1997          1996         1995      1994          1993
             -----------  ------------   ---------  --------   --------------
            <S>              <C>         <C>             <C>       <C>   
                 $10.71      $ 10.28      $ 11.03   $ 10.99        $10.45
                 -------      ------       ------   -------         ------- 
                   0.46         0.49         0.49      0.51          0.36
                  (0.05)        0.43        (0.65)     0.07          0.54
                  ------       ------      -------   -------        ------
                   0.41         0.92        (0.16)     0.58          0.90
                  ------       ------      -------   -------        ------
                  (0.46)       (0.49)       (0.49)    (0.51)        (0.36)
                    --            --        (0.10)    (0.03)         --
                  ------       ------      -------   -------        ------
                  (0.46)       (0.49)       (0.59)    (0.54)        (0.36)
                  ------       ------      -------   -------        ------
                 $10.66      $ 10.71      $ 10.28   $ 11.03        $10.99
                 ------       ------      -------   -------        ------
                 ------       ------      -------   -------        ------
                   3.98%        9.17%       (1.20)%    5.35%         8.38%
                 ------       ------      -------   -------        ------
                 ------       ------      -------   -------        ------
                $13,786      $17,849      $21,095   $38,165       $19,553
                   1.52%        1.52%        1.52%     1.27%         0.90%*
                   2.04%        1.64%        1.75%     1.72%         1.83%*
                   4.41%        4.61%        4.89%     4.55%         5.04%*
                   3.89%        4.50%        4.65%     4.10%         4.11%*
                     40%          13%           6%        8%            6%
</TABLE>
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 17








<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                       INVESTMENT OBJECTIVES AND POLICIES
- --------------------------------------------------------------------------------
 
The Funds' investment objectives may not be changed without shareholder
approval. Their other investment policies, except where noted, are not
fundamental and may be changed by the Funds' boards of trustees.
 
CALIFORNIA TAX-FREE INCOME FUND
 
The investment objective of California Tax-Free Income Fund is to provide high
current income exempt from federal income tax and California personal income
tax, consistent with the preservation of capital and liquidity within the Fund's
quality standards. The Fund seeks to invest substantially all of its net assets
in securities issued by the State of California, its municipalities, and public
authorities or by other issuers if such obligations pay interest that is exempt
from federal income tax and California personal income tax ('California
Obligations') and, except under unusual market conditions, the Fund invests at
least 80% of its net assets in California Obligations that pay interest that is
not an item of tax preference for purposes of the federal alternative minimum
tax ('AMT exempt interest'). Although the Fund invests primarily in investment
grade municipal securities, it may invest up to 35% of its net assets in
municipal securities rated below investment grade.
 
NATIONAL TAX-FREE INCOME FUND
 
The investment objective of National Tax-Free Income Fund is to provide high
current income exempt from federal income tax, consistent with the preservation
of capital and liquidity within the Fund's quality standards. The Fund seeks to
invest substantially all of its net assets in municipal securities with varying
maturities. Except under unusual market conditions, the Fund invests at least
80% of its net assets in municipal securities that pay AMT exempt interest.
Although the Fund invests primarily in investment grade municipal securities, it
may invest up to 35% of its net assets in municipal securities rated below
investment grade.
 
MUNICIPAL HIGH INCOME FUND
 
The investment objective of Municipal High Income Fund is to provide high
current income exempt from federal income tax. Except under unusual market
conditions, the Fund invests at least 80% of its assets in municipal securities
and may invest without limit in municipal securities that are below investment
grade. The Fund also may invest without limit in municipal securities that pay
interest that is not AMT exempt interest and does so when Mitchell Hutchins
believes that such securities offer attractive yields relative to AMT exempt
municipal obligations with similar credit and market characteristics and risks.
 
NEW YORK TAX-FREE INCOME FUND
 
The investment objective of New York Tax-Free Income Fund is to provide high
current income exempt from federal income tax and from New York State and New
York City personal income taxes. The Fund seeks to invest substantially all of
its net assets in securities issued by the State of New York, its municipalities
and public authorities or by other issuers if such obligations pay interest that
is exempt from federal income tax and New York State and New York City personal
income taxes ('New York Obligations') and, except under unusual market
conditions, invests at least 80% of its net assets in New York Obligations that
pay AMT exempt interest. Although the Fund invests primarily in investment grade
municipal securities, it may invest up to 35% of its net assets in municipal
securities rated below investment grade.
 
                                    * * * *
 
As with any mutual fund, there is no assurance that any of these Funds will
achieve its investment objective. Each Fund's net asset value fluctuates based
upon changes in the value of its portfolio securities.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 18
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                       INVESTMENT PHILOSOPHY AND PROCESS
- --------------------------------------------------------------------------------
 
In selecting municipal securities for the Funds that will provide investors with
high current income exempt from federal and/or state and local income taxes,
Mitchell Hutchins relies on the expertise of its team of analysts and portfolio
managers.
 
The Municipal Investment Team's investment process for each Fund employs a
'top-down' investment process. This process consists of analyzing three
fundamental factors: to determine duration, sector and security selection.
Duration is set based on the direction of interest rates and the shape of the
yield curve. Sector is determined by analyzing the spread between the prevailing
yields of municipal and U.S. Treasury securities, investment opportunities
within the municipal market and state tax exemption. Finally, security selection
is established by performing an analysis of both credit quality and structure of
individual issues.
 
All aspects of the Municipal Investment Team's investment process rely on solid
research, which is broken down into four types: economic, credit, quantitative
and market. Mitchell Hutchins' analysts monitor these components on a daily
basis. This research provides the Team with increased information to assist it
in effectively managing municipal portfolios. The municipal bond market is a
fragmented, inefficient market that, in Mitchell Hutchins' opinion, offers
opportunities for active management. With the information garnered by extensive
research, active management may capitalize on these inefficiencies and
potentially increase portfolio value.
 
                             ---------------------
- --------------------------------------------------------------------------------
                               Prospectus Page 19





<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                                  PERFORMANCE
- --------------------------------------------------------------------------------
 
These charts show the total returns for the Funds. Sales charges have not been
deducted from total returns for Class A, B and C shares. Returns would be lower
if sales charges were deducted. Total returns are shown for Class Y shares of
National Tax-Free Income Fund. The other Funds did not have any Class Y shares
outstanding during the periods shown. Past results are not a guarantee of future
results.
 
Total returns both before and after deducting the maximum sales charges are
shown below in the tables that follow the performance charts.
 
CALIFORNIA TAX-FREE INCOME FUND

                                     [GRAPH]

   

<TABLE>
<CAPTION>
                     California Tax-Free Income Fund 

9/16/85    1986    1987      1988     1989      1990        1991      1992    1993     1994
12/31/85

 <S>       <C>     <C>       <C>      <C>       <C>         <C>       <C>     <C>      <C> 
Class A      A        A        A         A        A           A         A       A       A 
 7.41%     19.18%   0.65%    10.20%    9.11%     6.68%      10.84%    7.49%   11.96   -8.07%

                                                               B         B      B       B  
                                                             6.20%    6.67%   11.11%  -8.69%

                                                                       C        C       C
                                                                      2.68%   11.40%  -8.47%

1995              1996
 A                 A
16.80%            2.74%

 B                 B
15.91%            1.96%

 C                 C
16.09%            2.31%
</TABLE>

    
 
As Class A shares commenced operations on September 16, 1985, the 1985 return
represents the period from September 16, 1985 through December 31, 1985. The
inception date of Class B shares was July 1, 1991; thus, the 1991 return for
Class B shares represents the period from July 1, 1991 through December 31,
1991. The inception date of Class C shares was July 2, 1992; thus, the 1992
return for Class C shares represents the period from July 2, 1992 through
December 31, 1992.
 
AVERAGE ANNUAL RETURNS
  As of February 28, 1997
 
<TABLE>
<CAPTION>
                                                                            CLASS A SHARES    CLASS B SHARES    CLASS C SHARES
                                                                            --------------    --------------    --------------
<S>                                                                         <C>               <C>               <C>
Inception Date...........................................................     9/16/85           7/1/91            7/2/92
ONE YEAR
  Without deducting maximum sales charges................................      3.92%             3.14%             3.30%
  After deducting maximum sales charges..................................     (0.24)%           (1.86)%            2.55%
FIVE YEARS
  Without deducting maximum sales charges................................      5.89%             5.11%              N/A
  After deducting maximum sales charges..................................      5.02%             4.78%              N/A
TEN YEARS (OR LIFE OF CLASS)
  Without deducting maximum sales charges................................      6.27%             5.57%             4.79%
  After deducting maximum sales charges..................................      5.83%             5.43%             4.79%
</TABLE>
 
                             ---------------------
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                               Prospectus Page 20
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
NATIONAL TAX-FREE INCOME FUND
 

                                     [GRAPH]

   

<TABLE>
<CAPTION>
                           National Tax-Free Income Fund

12/03/84      1985     1986      1987     1988    1989     1990      1991 
12/31/84
 <S>          <C>      <C>       <C>      <C>     <C>      <C>       <C> 
Class  A       A         A        A         A       A        A         A 
     0.31%   19.00%    17.38%    1.30%    10.98%   9.11%    6.55%   11.12%

                                                                       B
                                                                     6.50%

1992         1993       1994     1995     1996
 A            A          A        A        A
8.01%       12.32%     -7.14%    16.01%   2.29%

 B            B          B        B        B
7.27%       11.49%     -7.84%    15.05%   1.52%

 C            C          C        C        C          
2.78%       11.77%     -7.60%    15.42%   1.77%     

                                  Y        Y
                                3.34%    2.57%

</TABLE>

    

As Class A shares commenced operations on December 3, 1984, the 1984 return
represents the period from December 3, 1984 through December 31, 1984. The
inception date of Class B shares is July 1, 1991; thus, the 1991 return for
Class B shares represents the period from July 1, 1991 through December 31,
1991. The inception date of Class C shares was July 2, 1992; thus, the 1992
return for Class C shares represents the period from July 2, 1992 through
December 31, 1992. The inception date of Class Y shares is November 3, 1995;
thus, the 1995 return for Class Y shares represents the period from November 3,
1995 through December 31, 1995.
 
AVERAGE ANNUAL RETURNS
  As of February 28, 1997
 
<TABLE>
<CAPTION>
                                                            CLASS A SHARES    CLASS B SHARES    CLASS C SHARES    CLASS Y SHARES
                                                            --------------    --------------    --------------    --------------
<S>                                                         <C>               <C>               <C>               <C>
Inception Date...........................................     12/3/84           7/1/91            7/2/92            11/3/95
ONE YEAR
  Without deducting maximum sales charges................      4.14%             3.35%             3.61%             4.32%
  After deducting maximum sales charges..................     (0.07)%           (1.65)%            2.86%             4.32%
FIVE YEARS
  Without deducting maximum sales charges................      6.20%             5.40%              N/A               N/A
  After deducting maximum sales charges..................      5.33%             5.07%              N/A               N/A
TEN YEARS (OR LIFE OF CLASS)
  Without deducting maximum sales charges................      6.54%             5.85%             4.98%             4.56%
  After deducting maximum sales charges..................      6.11%             5.71%             4.98%             4.56%
</TABLE>
 
                             ---------------------
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                               Prospectus Page 21
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
MUNICIPAL HIGH INCOME FUND
 

                                     [GRAPH]

<TABLE>
<CAPTION>

                           Municipal High Income Fund

06/23/87       1988        1989     1990      1991     1992      1993      1994       1995      1996
12/31/87        

<S>             <C>        <C>      <C>       <C>       <C>       <C>       <C>       <C>       <C>
Class A          A          A        A         A         A         A         A         A         A 
1.46%          14.45%      9.66%    5.52%    13.32%     9.79%    12.14%    -7.77%    15.55%     5.94%
                                               B         B         B         B         B         B
                                             7.21%      8.95%    11.30%    -8.47%    14.59%     5.14%
                                                         C         C         C         C         C
                                                        3.06%    11.57%    -8.23%    14.88%     5.51%
</TABLE>

As Class A shares commenced operations on June 23, 1987, the 1987 return
represents the period from June 23, 1987 through December 31, 1987. The
inception date of Class B shares is July 1, 1991; thus, the 1991 return for
Class B shares represents the period from July 1, 1991 through December 31,
1991. The inception date of Class C shares was July 2, 1992; thus, the 1992
return for Class C shares represents the period from July 2, 1992 through
December 31, 1992.
 
AVERAGE ANNUAL RETURNS
  As of February 28, 1997
 
<TABLE>
<CAPTION>
                                                                            CLASS A SHARES    CLASS B SHARES    CLASS C SHARES
                                                                            --------------    --------------    --------------
<S>                                                                         <C>               <C>               <C>
Inception Date...........................................................     6/23/87           7/1/91            7/2/92
ONE YEAR
  Without deducting maximum sales charges................................      6.61%             5.82%             6.08%
  After deducting maximum sales charges..................................      2.34%             0.82%             5.33%
FIVE YEARS
  Without deducting maximum sales charges................................      6.96%             6.16%              N/A
  After deducting maximum sales charges..................................      6.09%             5.85%              N/A
LIFE
  Without deducting maximum sales charges................................      8.10%             6.66%             5.53%
  After deducting maximum sales charges..................................      7.65%             6.53%             5.53%
</TABLE>
 
                             ---------------------
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                               Prospectus Page 22
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
NEW YORK TAX-FREE INCOME FUND
 

                                     [GRAPH]
                    New York Tax Free Fund

<TABLE>
<CAPTION>
09/23/88       1989        1990     1991      1992     1993      1994      1995       1996  
12/31/88        

<S>             <C>        <C>      <C>       <C>       <C>       <C>       <C>       <C>   
 A               A          A        A         A         A         A         A         A    
1.82%           9.90%      5.53%   12.85%     9.85%    12.72%    -8.48%   -17.57%     3.46% 
                                     B         B         B         B         B         B    
                                   7.25%      9.02%    11.78%    -9.08%    16.71%     2.69% 
                                               C         C         C         C         C    
                                              3.65%    12.04%    -8.81%    16.87%     2.95% 
</TABLE>

As Class A shares commenced operations on September 23, 1988, the 1988 return
represents the period from September 23, 1988 through December 31, 1988. The
inception date of Class B shares is July 1, 1991; thus, the 1991 return for
Class B shares represents the period from July 1, 1991 through December 31,
1991. The inception date of Class C shares was July 2, 1992; thus, the 1992
return for Class C shares represents the period from July 2, 1992 through
December 31, 1992.
 
AVERAGE ANNUAL RETURNS
  As of February 28, 1997
 
<TABLE>
<CAPTION>
                                                                            CLASS A SHARES    CLASS B SHARES    CLASS C SHARES
                                                                            --------------    --------------    --------------
<S>                                                                         <C>               <C>               <C>
Inception Date...........................................................     9/23/88           7/1/91            7/2/92
ONE YEAR
  Without deducting maximum sales charges................................      4.49%             3.62%             3.98%
  After deducting maximum sales charges..................................      0.31%            (1.38)%            3.23%
FIVE YEARS
  Without deducting maximum sales charges................................      6.82%             6.01%              N/A
  After deducting maximum sales charges..................................      5.96%             5.69%              N/A
LIFE
  Without deducting maximum sales charges................................      7.54%             6.51%             5.45%
  After deducting maximum sales charges..................................      7.03%             6.38%             5.45%
</TABLE>
 
                             ---------------------
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                               Prospectus Page 23







<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
PERFORMANCE INFORMATION
 
The Funds perform a standardized computation of annualized total return and may
show this return in advertisements or promotional materials. Standardized return
shows the change in value of an investment in a Fund as a steady compound annual
rate of return. Actual year-by-year returns fluctuate and may be higher or lower
than standardized return. Standardized returns for Class A shares of the Funds
reflect deduction of the Funds' maximum initial sales charge of 4% at the time
of purchase, and standardized returns for the Class B and Class C shares of the
Funds reflect deduction of the applicable contingent deferred sales charge
imposed on the sale of shares held for the period. One-, five- and ten-year
periods will be shown, unless the Fund or Class has been in existence for a
shorter period. If so, returns will be shown for the period since inception,
known as 'Life.' Total return calculations assume reinvestment of dividends and
other distributions.
 
The Funds may use other total return presentations in conjunction with
standardized return. These may cover the same or different periods as those used
for standardized return and may include cumulative returns, average annual
rates, actual year-by-year rates or any combination thereof. Non-standardized
return does not reflect initial or contingent deferred sales charges and would
be lower if such charges were deducted.
 
The Funds also may advertise their yields or tax-equivalent yields. Yield
reflects investment income net of expenses over a 30-day (or one month) period
on a Fund share. Yield is expressed as an annualized percentage of the maximum
offering price for a Fund share at the end of the period. For Class B, C and Y
shares, the maximum offering price is the same as the net asset value per share.
Tax-equivalent yield shows the yield that would produce the same income after a
stated rate of taxes as a Fund's tax-exempt yield (that is, yield excluding
taxable income). Yield computations differ from other accounting methods and may
differ from dividends actually paid or reported net income.
 
Total return information reflects past performance and does not indicate future
results. The investment return and principal value of shares of the Funds will
fluctuate. The amount investors receive when selling shares may be more or less
than what they paid. Further information about each Fund's performance is
contained in its Annual Report to Shareholders, which may be obtained without
charge by contacting the Fund, your PaineWebber investment executive or
PaineWebber's correspondent firms or by calling toll-free 1-800-647-1568.
 
- --------------------------------------------------------------------------------
                             THE FUNDS' INVESTMENTS
- --------------------------------------------------------------------------------
 
MUNICIPAL SECURITIES
 
Each Fund may invest in a variety of municipal securities, as described below:
 
MUNICIPAL BONDS. Municipal bonds are debt obligations issued to obtain funds for
various public purposes that pay interest that is exempt from federal income tax
in the opinion of bond issuer's counsel. Municipal bonds include general
obligation bonds, revenue bonds and 'moral obligation' issues. Municipal bonds
also include municipal lease obligations, which are issued by state and local
governments and authorities to purchase land and various types of equipment or
facilities.
 
INDUSTRIAL DEVELOPMENT BONDS ('IDBS') AND PRIVATE ACTIVITY BONDS ('PABS'). IDBs
and PABs are issued by or on behalf of public authorities to finance various
privately operated facilities, such as airport or pollution control facilities,
and are considered to be 'municipal bonds' if the interest paid on the bond is
exempt from federal income tax in the opinion of bond issuer's counsel.
 
                             ---------------------
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                               Prospectus Page 24
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
FLOATING RATE AND VARIABLE RATE OBLIGATIONS. Floating rate and variable rate
obligations pay interest at rates that are not fixed, but that vary with changes
in specified market rates or indices. These obligations typically permit the
holder to demand payment of principal from the issuer at par value prior to
maturity and may permit the issuer to prepay principal plus accrued interest.
 
PARTICIPATION INTERESTS. Participation interests are interests in municipal
bonds that are owned by banks, and typically carry a demand feature permitting
the holder to sell them back to the bank.
 
TENDER OPTION BONDS. Tender option bonds are long-term municipal securities sold
by a bank subject to a 'tender option' that gives the purchaser the right to
sell them to the bank at par plus accrued interest at designated times.
 
PUT BONDS. A put bond is a municipal bond that gives the holder the
unconditional right to sell the bond back to the issuer at a specified price and
exercise date, which is typically well in advance of the bond's maturity date.
 
TAX-EXEMPT COMMERCIAL PAPER AND SHORT-TERM MUNICIPAL NOTES. Tax-exempt
commercial paper and short-term municipal notes are issued with a short-term
maturity in anticipation of the receipt of tax funds, the proceeds of bond
placements and other revenues.
 
INVERSE FLOATERS. Inverse floaters are municipal securities on which the rate of
interest varies inversely with interest rates on other municipal obligations or
an index. The interest rate paid to holders of inverse floaters will decrease as
market rates increase and increase as market rates decrease. The market value of
an inverse floater will be more volatile than that of a fixed rate obligation.
Because of this market volatility, no Fund will invest more than 10% of its
total assets in inverse floaters.
 
RISKS
 
Under normal circumstances, each Fund invests primarily in municipal securities.
Following is a discussion of certain risks that may affect each Fund:
 
INTEREST RATE AND CREDIT RISK. Interest rate risk is the risk that interest
rates will rise and that, as a result, municipal security prices will fall,
lowering the value of the Funds' investments. In general, municipal securities
having longer durations are more sensitive to interest rate changes than are
bonds with shorter durations. See 'Duration.'
 
Credit risk is the risk that the issuer or a guarantor may be unable to pay
interest or repay principal on the bond. This can be affected by many factors,
including adverse changes in the issuer's own financial conditions or in
economic conditions.
 
CREDIT RATINGS; LOWER RATED MUNICIPAL SECURITIES. Credit ratings attempt to
evaluate the safety of principal and interest payments, but they do not evaluate
the volatility of a bond's value or its liquidity and do not guarantee the
performance of the issuer. Rating agencies may fail to make timely changes in
credit ratings in response to subsequent events, so that an issuer's current
financial condition may be better or worse than the rating indicates. There is a
risk that rating agencies may downgrade municipal securities.
 
Each Fund other than Municipal High Income Fund normally invests at least 65% of
its total assets in municipal securities that:
 
 have an investment grade long-term rating or one of the two highest short-term
 ratings from a nationally recognized ratings agency, such as Moody's Investors
 Service, Inc. ('Moody's') or Standard & Poor's, a division of The McGraw-Hill
 Companies, Inc. ('S&P'), or
 
 if unrated, are determined by Mitchell Hutchins to be of comparable quality.
 
Investment grade securities are rated in one of the four highest rating
categories by a nationally recognized rating agency, such as S&P or Moody's, or,
if unrated, are considered to be of comparable quality by Mitchell Hutchins.
 
Municipal High Income Fund normally invests at least 65% of its total assets,
and seeks to invest substantially all of its assets, in medium and lower grade
municipal securities. Medium grade municipal securities are investment grade
and:
 
 are rated A, BBB or SP-2 by S&P or A, Baa or MIG-2 by Moody's,
 
                             ---------------------
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                               Prospectus Page 25
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
 have received an equivalent rating from another nationally recognized ratings
 agency, or
 
 if unrated, are considered to be of comparable quality by Mitchell Hutchins.
 
Moody's considers securities rated Baa (its lowest investment grade rating) to
have speculative characteristics. This means that changes in economic conditions
or other circumstances are more likely to lead to a weakened capacity to make
principal and interest payments than is the case for higher rated bonds.
 
Municipal High Income Fund may invest without limit in municipal securities
rated below investment grade. The other Funds each may invest up to 35% of its
net assets in such securities. These lower rated municipal securities may be
rated:
 
 Ba, B, MIG-3 or MIG-4 by Moody's or BB, B or SP-3 by S&P,
 
 have an equivalent rating from another nationally recognized ratings agency, or
 
 if unrated, are determined by Mitchell Hutchins to be of comparable quality.
 
The Appendix to this Prospectus contains further information about Moody's and
S&P ratings.
 
Moody's and S&P consider municipal securities rated below investment grade to be
predominately speculative with respect to the issuer's capacity to pay interest
and repay principal and may involve major risk exposure to adverse conditions.
Such securities are commonly referred to as municipal 'junk bonds.' A Fund's
investments in these lower rated securities entail greater risk than its
investments in higher rated bonds. Lower rated municipal bonds may be less
sensitive to interest rate changes than higher rated investments but are more
sensitive to adverse market conditions. During an economic downturn or period of
rising interest rates, their issuers may experience financial stress that
adversely affects their ability to pay interest and principal and may increase
the possibility of default. The prices for lower rated municipal bonds often are
more volatile than those of higher rated securities in response to changes in
market conditions. The market for these municipal bonds is thinner and less
active, which may limit the Funds' ability to sell them at fair value in
response to changes in the economy or financial markets.
 
Although Mitchell Hutchins will attempt to minimize the speculative risks
associated with investing in lower rated securities through credit analysis and
monitoring and attention to current trends in interest rates and other factors,
investors should carefully review the investment objective and policies of
Municipal High Income Fund and the other Funds and consider their ability to
assume the investment risks involved before making an investment.
 
During the fiscal year ended February 28, 1997, only Municipal High Income Fund
invested 5% or more of its average annual net assets in securities rated below
investment grade. Municipal High Income Fund's average annual net assets during
that fiscal year were invested as follows:
 
<TABLE>
<CAPTION>
                                                  MUNICIPAL
                                                    HIGH
          % OF THE AVERAGE ANNUAL NET              INCOME
              ASSETS INVESTED IN                    FUND
- -----------------------------------------------   ---------
<S>                                               <C>
Debt securities rated by S&P or Moody's             91.52
Debt Securities not so rated                         7.79
Securities rated AAA/Aaa                                0
Securities rated AA/Aa                                  0
Securities rated A/A                                 0.17
Securities rated BBB/Baa                            55.90
Securities rated BB/Ba                              26.13
Securities rated B/B                                 9.32
Securities rated CCC/Caa                             -
Securities rated CC/Ca                               -
Securities rated C/C                                 -
Securities rated D                                   -
</TABLE>
 
Municipal securities that received different ratings from Moody's and S&P were
assigned to the higher rating category. It should be noted that this information
reflects the average composition of Municipal High Income Fund's assets during
the fiscal year ended February 28, 1997, and is not necessarily representative
of the Fund's assets at the end of that fiscal year, in the current fiscal year
or at any time in the future.
 
MARKET RISK. During periods of market uncertainty, the prices of municipal
securities can become volatile.
 
DURATION. Duration is a measure of the expected life of a bond on a present
value basis. Duration
 
                             ---------------------
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                               Prospectus Page 26
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
incorporates a bond's yield, coupon interest payments, final maturity and call
features into one measure and is one of the fundamental tools used by Mitchell
Hutchins in portfolio selection and yield curve positioning for the Funds.
 
Duration takes the length of the time intervals between the present time and the
time that the interest and principal payments are scheduled or, in the case of a
callable bond, expected to be made, and weights them by the present values of
the cash to be received at each future point in time. For any bond with interest
payments occurring prior to the payment of principal, duration is always less
than maturity.
 
Duration allows Mitchell Hutchins to make certain predictions as to the effect
that changes in the level of interest rates will have on the value of a Fund's
portfolio. For example, when the level of interest rates increases by 1%, a
fixed income security having a positive duration of ten years generally will
decrease by approximately 10%. Thus, if Mitchell Hutchins calculates the
duration of the Fund's portfolio as ten years, it normally would expect the
portfolio to change in value by approximately 10% for every 1% change in the
level of interest rates. However, various factors, such as changes in
anticipated prepayment rates, qualitative considerations and market supply and
demand, can cause particular securities to respond somewhat differently to
changes in interest rates than indicated in the above example. Moreover, in the
case of complex securities, duration calculations are estimates and are not
precise. This is particularly true during periods of market volatility.
Accordingly, the net asset value of a Fund's portfolio may vary in relation to
interest rates by a greater or lesser percentage than indicated by the above
example.
 
DERIVATIVES. Some of the instruments in which the Funds may invest may be
referred to as 'derivatives,' because their value depends on (or 'derives' from)
the value of an underlying asset, reference rate or index. These instruments
include options, futures contracts and similar instruments that may be used in
hedging strategies. There is only limited consensus as to what constitutes a
'derivative' security. However, in Mitchell Hutchins' view, derivative
securities also include inverse floaters. The market value of derivative
instruments and securities sometimes is more volatile than that of other
investments, and each type of derivative instrument may pose its own special
risks. Mitchell Hutchins takes these risks into account in its management of the
Funds.
 
CHANGE IN LAWS. New federal, state and local laws, or changes in existing laws,
may adversely affect the tax-exempt status of interest on a Fund's portfolio
securities or of the exempt-interest dividends paid by a Fund, extend the time
for an issuer's payment of principal or interest or otherwise constrain
enforcement of such obligations.
 
RELATED SECURITIES. Each Fund may invest more than 25% of its total assets in
municipal securities that are related in such a way that an economic, business
or political development or change affecting one such security also might affect
the other securities, such as securities the interest on which is paid from
revenues of similar types of projects. The Funds may be subject to greater risk
than other funds that do not follow this practice.
 
NON-DIVERSIFIED STATUS. Municipal High Income Fund and New York Tax-Free Income
Fund are each 'non-diversified,' as that term is defined in the Investment
Company Act of 1940. This means, in general, that more than 5% of the Fund's
total assets may be invested in the securities of one issuer, but only if, at
the close of each quarter of the Fund's taxable year, the aggregate amount of
such holdings does not exceed 50% of the value of its total assets and no more
than 25% of the value of its total assets is invested in the securities of a
single issuer. When the Fund's portfolio is comprised of securities of a smaller
number of issuers than if it were 'diversified,' the Fund will be subject to
greater risk because changes in the financial condition or market assessment of
a single issuer may have a greater effect on the Fund's total return and the
price of Fund shares.
 
RISKS OF CALIFORNIA OBLIGATIONS. California Tax-Free Income Fund's investment
concentration in
 
                             ---------------------
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                               Prospectus Page 27
 



<PAGE>
 
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
California Obligations involves greater risks than if it invested in the
securities of a broader range of issuers. The Fund's yield and net asset value
per share can be affected by political and economic developments within
California, and by the financial condition of California, its public authorities
and political subdivisions. California suffered a severe recession between
1990-1993, resulting in significant revenue shortfalls for both the State and
local government, and increased social service expenses. However, since the
start of 1994, California's economy has rebounded strongly, with corresponding
improvements in tax revenues. Further, in the past California voters have passed
amendments to the California Constitution and other measures that limit the
taxing and spending authority of California governmental entities, and future
voter initiatives could result in adverse consequences affecting California
Obligations. A more detailed discussion of the risks of investing in California
Obligations is included in the Statement of Additional Information.
 
RISKS OF NEW YORK OBLIGATIONS. New York Tax-Free Income Fund's investment
concentration in New York Obligations involves greater risks than if it invested
in the securities of a broader range of issuers. The Fund's yield and net asset
value per share can be affected by political and economic developments within
the State of New York, its public authorities and political subdivisions,
particularly New York City. Although employment in New York State has grown at a
modest rate since 1993 and the State's economy continued its slow recovery in
1996, New York State has experienced slower employment growth than the nation as
a whole. Although New York City has closed substantial budget gaps in recent
years to maintain a balanced budget as required by State law, additional tax
increases or additional reductions in essential City services or entitlement
programs could adversely affect the City's economic base. A more detailed
discussion of the risks of investing in New York Obligations is included in the
Statement of Additional Information.
 
INVESTMENT TECHNIQUES AND STRATEGIES
 
HEDGING AND OTHER STRATEGIES USING DERIVATIVE CONTRACTS. Each Fund may use
derivative contracts, such as options (both exchange-traded and
over-the-counter) and futures contracts in strategies intended to enhance income
or to reduce the overall risk of its investments ('hedge'). Use of these
derivative contracts solely to enhance income may be considered a form of
speculation. The use of derivative contracts also may generate taxable income.
New financial products and risk management techniques continue to be developed
and may be used if consistent with a Fund's investment objective and policies.
The Statement of Additional Information contains further information on these
derivative contracts and related strategies.
 
The Funds might not use any derivative contract or related strategy, and there
can be no assurance that any strategy will succeed. If Mitchell Hutchins is
incorrect in its judgment on market values, interest rates or other economic
factors in using a hedging strategy, a Fund may have lower net income and a net
loss on the investment. Each strategy involves certain risks, which include:
 
 the fact that the skills needed to implement a strategy using derivative
 instruments are different from those needed to select securities for the Funds;
 
 the possibility of imperfect correlation, or even no correlation, between price
 movements of derivative contracts used in hedging strategies and price
 movements of the securities being hedged;
 
 possible constraints placed on a Fund's ability to purchase or sell portfolio
 investments at advantageous times due to the need for the Fund to maintain
 'cover' or to segregate securities; and
 
 the possibility that a Fund is unable to close out or liquidate its hedged
 position.
 
DEFENSIVE POSITIONS. When Mitchell Hutchins believes that unusual circumstances
warrant a defensive posture and that there are not enough suitable municipal
obligations available, each
 
                             ---------------------
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                               Prospectus Page 28
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
Fund may temporarily and without percentage limit hold cash and invest in money
market instruments that pay taxable interest, including repurchase agreements.
If a Fund holds cash, the cash would not earn income and would reduce the Fund's
yield. In addition, for temporary defensive purposes, each of California
Tax-Free Income Fund, National Tax-Free Income Fund and New York Tax-Free Income
Fund may invest more than 20% of its net assets in municipal obligations that
pay interest that is exempt from federal income tax but is subject to California
personal income tax (in the case of California Tax-Free Income Fund), New York
personal income tax (in the case of New York Tax-Free Income Fund) or is not AMT
exempt interest.
 
ILLIQUID SECURITIES. Each Fund may invest up to 10% of its net assets in
illiquid securities. These include, among other things, municipal lease
obligations (including certificates of participation) other than those Mitchell
Hutchins has determined are liquid pursuant to guidelines established by each
Fund's board.
 
LENDING PORTFOLIO SECURITIES. Each Fund may lend its securities to qualified
broker-dealers or institutional investors in an amount up to 33 1/3% of the
Fund's total assets taken at market value. Lending securities enables a Fund to
earn additional income but could result in a loss or delay in recovering
securities. Because the income generated by securities lending activities is
taxable, the Funds do not expect to engage in securities lending except under
unusual circumstances.
 
OTHER INFORMATION. Each Fund may purchase bonds on a when-issued basis or may
purchase or sell securities for delayed delivery. A Fund generally would not pay
for such securities or start earning interest on them until they are delivered,
but it would immediately assume the risks of ownership, including the risk of
price fluctuation. Each Fund may borrow money for temporary or emergency
purposes, but not in excess of 10% of its total assets.
 
New forms of bonds, derivatives and hedging instruments continue to be
developed. Each Fund may invest in such securities to the extent consistent with
its investment objectives.
 
                             ---------------------
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                               Prospectus Page 29





<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                               FLEXIBLE PRICING'sm'
- --------------------------------------------------------------------------------
 
Each Fund offers through this Prospectus four classes of shares that differ in
terms of sales charges and expenses. An investor can select the class that is
best suited to his or her investment needs, based upon the holding period and
the amount of investment.
 
CLASS A SHARES
 
HOW PRICE IS CALCULATED:  The price is the net asset value plus the initial
sales charge (the maximum is 4% of the public offering price) next calculated
after PaineWebber's New York City headquarters or PFPC Inc., the Funds' transfer
agent ('Transfer Agent'), receives the purchase order. Although investors pay an
initial sales charge when they buy Class A shares, the ongoing expenses for this
class are lower than the ongoing expenses of Class B and Class C shares. Class A
shares sales charges are calculated as follows:
 
<TABLE>
<CAPTION>
                                                    SALES CHARGE AS A
                                                      PERCENTAGE OF
                                                 -----------------------          DISCOUNT TO
                                                                  NET          SELECTED DEALERS
                                                 OFFERING        AMOUNT          AS PERCENTAGE
AMOUNT OF INVESTMENT                              PRICE         INVESTED       OF OFFERING PRICE
- ----------------------------------------------   --------       --------       -----------------
 
<S>                                              <C>            <C>            <C>
Less than $100,000                                 4.00%          4.17%               3.75%
 
$100,000 to $249,999                               3.00           3.09                2.75
 
$250,000 to $499,999                               2.25           2.30                2.00
 
$500,000 to $999,999                               1.75           1.78                1.50
 
$1,000,000 and over(1)                             None           None                1.00(2)
</TABLE>
 
- ------------------
(1) A contingent deferred sales charge of 1% of the shares' offering price or
    the net asset value at the time of sale by the shareholder whichever is
    less, is charged on sales of shares made within one year of the purchase
    date. However, Class A shares representing reinvestment of any dividends or
    other distributions are not subject to the 1% charge. Withdrawals under the
    Systematic Withdrawal Plan are not subject to this charge. However,
    investors may not withdraw annually more than 12% of the value of the Fund
    account under the Plan in the first year after purchase.
 
(2) Mitchell Hutchins pays 1% to PaineWebber.
 
SALES CHARGE REDUCTIONS & WAIVERS
 
Investors purchasing Class A shares in more than one PaineWebber mutual fund may
combine those purchases to get a reduced sales charge. Investors who already own
Class A shares in one or more PaineWebber mutual funds may combine the amount
they are currently purchasing with the value of such previously owned shares to
qualify for a reduced sales charge. To determine the sales charge reduction in
either case, please refer to the chart above.
 
Investors may also qualify for a lower sales charge when they combine their
purchases with those of:
 
 their spouses, parents or children under age 21;
 
 their Individual Retirement Accounts (IRAs);
 
 certain employee benefit plans, including 401(k) plans;
 
 any company controlled by the investor;
 
 trusts created by the investor;
 
 Uniform Gifts to Minors Act/Uniform Transfers to Minors Act accounts created by
 the investor or group of investors for the benefit of the investors' children;
 or
 
 accounts with the same adviser.
 
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                               Prospectus Page 30
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
Employers who own Class A shares for one or more of their qualified retirement
plans may also qualify for the reduced sales charge.
 
The sales charge will not apply when the investor:
 
 is an employee, director, trustee or officer of PaineWebber, its affiliates or
 any PaineWebber mutual fund;
 
 is the spouse, parent or child of any of the above;
 
 buys these shares through a PaineWebber investment executive who was formerly
 employed as a broker with a competing brokerage firm that was registered as a
 broker-dealer with the SEC; and
 
    was the investment executive's client at the competing brokerage firm;
 
    within 90 days of buying Class A shares in a Fund, the investor sells shares
    of one or more mutual funds that (a) were principally underwritten by the
    competing brokerage firm or its affiliates and (b) the investor either paid
    a sales charge to buy those shares, paid a contingent deferred sales charge
    when selling them or held those shares until the contingent deferred sales
    charge was waived; and
 
    the amount that the investor purchases does not exceed the total amount of
    money the investor received from the sale of the other mutual fund;
 
 is a certificate holder of unit investment trusts sponsored by PaineWebber and
 has elected to have dividends and other distributions from that investment
 automatically invested in Class A shares;
 
 is an employer establishing an employee benefit plan qualified under section
 401, including a salary reduction plan qualified under section 401(k) or 403(b)
 of the Internal Revenue Code ('Code') (each a 'qualified pension plan'). This
 waiver is subject to minimum requirements, with respect to the number of
 employees and amount of plan assets, established by Mitchell Hutchins.
 Currently, a plan must have 50 or more eligible employees and at least $1
 million in plan assets. For investments made pursuant to this waiver, Mitchell
 Hutchins may make a payment to PaineWebber out of its own resources in an
 amount not to exceed 1% of the amount invested;
 
 is a participant in the PaineWebber Members Only Program'tm'. For investments
 made pursuant to this waiver, Mitchell Hutchins may make payments out of its
 own resources to PaineWebber and to participating membership organizations in a
 total amount not to exceed 1% of the amount invested;
 
 is a variable annuity offered only to qualified pension plans. For investments
 made pursuant to this waiver, Mitchell Hutchins may make payments out of its
 own resources to PaineWebber and to the variable annuity's sponsor, adviser or
 distributor in a total amount not to exceed 1% of the amount invested;
 
 acquires Class A shares through an investment program that is not sponsored by
 PaineWebber or its affiliates and that charges participants a fee for program
 services, provided that the program sponsor has entered into a written
 agreement with PaineWebber permitting the sale of Class A shares at net asset
 value to that program. For investments made pursuant to this waiver, Mitchell
 Hutchins may make a payment to PaineWebber out of its own resources in an
 amount not to exceed 1% of the amount invested. For subsequent investments or
 exchanges made to implement a rebalancing feature of such an investment
 program, the minimum subsequent investment requirement is also waived; or
 
 acquires Class A shares in connection with a reorganization pursuant to which a
 Fund acquires substantially all of the assets and liabilities of another
 investment company in exchange solely for shares of the Fund.
 
For more information on how to get a reduced sales charge, investors should
contact their investment executive at PaineWebber or one of its correspondent
firms or call 1-800-647-1568.
 
                             ---------------------
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                               Prospectus Page 31
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
Investors must provide satisfactory information to PaineWebber or a Fund if they
seek any of these sales charge reductions or waivers.
 
CLASS B SHARES
 
HOW PRICE IS CALCULATED:  The price is the net asset value next calculated after
PaineWebber's New York City headquarters or the Transfer Agent receives the
purchase order. The ongoing expenses investors pay for Class B shares are higher
than those of Class A shares. Because investors do not pay an initial sales
charge when they buy Class B shares, 100% of their purchase is immediately
invested.
 
Depending on how long they own their Fund investment, investors may have to pay
a sales charge when they sell their Fund shares. This sales charge is called a
'contingent deferred sales charge.' The amount of the charge depends on how long
the investor owned the shares. The sales charge is calculated by multiplying the
offering price (net asset value of the shares at the time of purchase) or the
net asset value at the time of sale by the shareholder, whichever is less, by
the percentage shown on the following table. Investors who own shares for more
than six years do not have to pay a sales charge when selling those shares.
 
<TABLE>
<CAPTION>
                                   PERCENTAGE BY WHICH
                                     THE SHARES' NET
                                          ASSET
         IF THE INVESTOR                VALUE IS
      SELLS SHARES WITHIN:             MULTIPLIED:
- ---------------------------------  -------------------
<S>                                <C>
1st year since purchase                    5%
2nd year since purchase                     4
3rd year since purchase                     3
4th year since purchase                     2
5th year since purchase                     2
6th year since purchase                     1
7th year since purchase                   None
</TABLE>
 
CONVERSION OF CLASS B SHARES
 
Class B shares automatically convert to the appropriate number of Class A shares
of equal dollar value after the investor has owned them for six years. Dividends
and other distributions paid to the investor by the Fund in the form of
additional Class B shares will also convert to Class A shares on a pro-rata
basis. This benefits shareholders because Class A shares have lower ongoing
expenses than Class B shares. If the investor has exchanged Class B shares
between PaineWebber funds, the Fund uses the purchase date at which the initial
investment was made to determine the conversion date.
 
MINIMIZING THE CONTINGENT DEFERRED SALES CHARGE
 
When investors sell Class B shares they have owned for less than six years, the
Fund automatically will minimize the sales charge by assuming the investors are
selling:
 
 First, Class B shares owned through reinvested dividends and capital gain
 distributions; and
 
 Second, Class B shares held in the portfolio the longest.
 
WAIVERS OF THE CONTINGENT DEFERRED SALES CHARGE
 
The contingent deferred sales charge will not apply to:
 
 sales of shares under the Fund's 'Systematic Withdrawal Plan' (investors may
 not withdraw annually more than 12% of the value of the Fund account under the
 Plan);
 
 a distribution from an IRA, a self-employed individual retirement plan ('Keogh
 Plan') or a custodial account under Section 403(b) of the Internal Revenue Code
 (after the investor reaches age 59 1/2);
 
 a tax-free return of an excess IRA contribution;
 
 a tax-qualified retirement plan distribution following retirement; or
 
 Class B shares sold within one year of an investor's death if the investor
 owned the shares at the time of death either as the sole shareholder or with
 his or her spouse as a joint tenant with the right of survivorship.
 
An investor must provide satisfactory information to PaineWebber or the Fund if
the investor seeks any of these waivers.
 
CLASS C SHARES
 
HOW PRICE IS CALCULATED:  The price of Class C shares is the net asset value
next calculated after
 
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                               Prospectus Page 32
 



<PAGE>
 
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
PaineWebber's New York City headquarters or the Transfer Agent receives the
purchase order. Investors do not pay an initial sales charge when they buy Class
C shares, but the ongoing expenses of Class C shares are higher than those of
Class A shares. Because investors do not pay an initial sales charge when they
buy Class C shares, 100% of their purchase is immediately invested. Class C
shares never convert to any other class of shares.
 
A contingent deferred sales charge of 0.75% of the offering price (net asset
value at the time of the purchase) or net asset value of the shares at the time
of sale by the shareholder, whichever is less, is charged on sales of shares
made within one year of the purchase date. Other PaineWebber mutual funds may
impose a different contingent deferred sales charge on Class C shares sold
within one year of the purchase date. A sale of Class C shares acquired through
an exchange and held less than one year will be subject to the same contingent
deferred sales charge that would have been imposed on the Class C shares of the
PaineWebber mutual fund originally purchased. Class C shares representing
reinvestment of any dividends or capital gains are not subject to the 0.75%
charge. Withdrawals under the Systematic Withdrawal Plan also are not subject to
this charge. However, investors may not withdraw more than 12% of the value of
the Fund account under the Plan in the first year after purchase.
 
CLASS Y SHARES
 
HOW PRICE IS CALCULATED:  Class Y shares are sold to eligible investors at the
net asset value next calculated after PaineWebber's New York City headquarters
or the Transfer Agent receives the purchase order. Because investors do not pay
an initial sales charge when they buy Class Y shares, 100% of their purchase is
immediately invested. No contingent deferred sales charge is imposed on Class Y
shares, and the ongoing expenses for Class Y shares are lower than for the other
classes because Class Y shares are not subject to rule 12b-1 distribution or
service fees.
 
LIMITED GROUPS OF INVESTORS.  Only the following investors are eligible to buy
Class Y shares:
 
 a participant in one of the PW Programs listed below when Class Y shares are
 purchased through that PW Program;
 
 an investor who buys $10 million or more at any one time in any combination of
 PaineWebber mutual funds in the Flexible Pricing'sm' System;
 
 an employee benefit plan qualified under section 401, including a salary
 reduction plan, qualified under section 401(k), or 403(b) of the Internal
 Revenue Code that has either 5,000 or more eligible employees or $50 million or
 more in assets; and
 
 an investment company advised by PaineWebber or an affiliate of PaineWebber.
 
PACE MULTI-ADVISOR PROGRAM: An investor who participates in the PACE
Multi-Advisor Program is eligible to purchase Class Y shares. The PACE
Multi-Advisor Program is an advisory program sponsored by PaineWebber that
provides comprehensive investment services, including investor profiling, a
personalized asset allocation strategy using an appropriate combination of
funds, and a quarterly investment performance review. Participation in the PACE
Multi-Advisor Program is subject to payment of an advisory fee at the maximum
annual rate of 1.5% of assets. Employees of PaineWebber and its affiliates are
entitled to a waiver of this fee.
 
Please contact your PaineWebber investment executive or PaineWebber's
correspondent firms for more information concerning mutual funds that are
available through the PACE Multi-Advisor Program.
 
INSIGHT: An investor who participates in the INSIGHT Advisory Program
('INSIGHT'), a total portfolio asset allocation program sponsored by
PaineWebber, is eligible to purchase Class Y shares. Participation in INSIGHT is
subject to payment of an advisory fee to PaineWebber at the maximum annual rate
of 1.5% of assets held through the program. Employees of PaineWebber and its
affiliates are entitled to a 50% reduction
 
                             ---------------------
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                               Prospectus Page 33
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
in the fee otherwise payable for participation in INSIGHT.
 
ACQUISITION OF CLASS Y SHARES BY OTHERS. Each Fund is authorized to offer Class
Y shares to certain other investment programs that are sponsored by PaineWebber
and that may invest in PaineWebber mutual funds. At present, however, INSIGHT
participants are the only purchasers in this category.
 
- --------------------------------------------------------------------------------
 
                               HOW TO BUY SHARES
- --------------------------------------------------------------------------------
 
Prices are calculated for each class of a Fund's shares once each Business Day,
at the close of regular trading on the New York Stock Exchange (currently 4:00
p.m., Eastern time). A 'Business Day' is any day, Monday through Friday, on
which the New York Stock Exchange is open for business.
 
The Funds and Mitchell Hutchins reserve the right to reject any purchase order
and to suspend the offering of Fund shares for a period of time.
 
When placing an order to buy shares, investors should specify which class of
shares they want to buy. If investors fail to specify the class, they will
automatically receive Class A shares, which include an initial sales charge.
Investors in Class Y shares must provide satisfactory information to PaineWebber
or an individual Fund that they are eligible to purchase Class Y shares.
 
PAINEWEBBER CLIENTS
 
Investors who are PaineWebber clients may buy shares through PaineWebber
investment executives or its correspondent firms. Investors may buy shares in
person, by mail, by telephone or by wire (the minimum wire purchase is $1
million). PaineWebber investment executives and correspondent firms are
responsible for promptly sending investors' purchase orders to PaineWebber's New
York City headquarters.
 
Investors may pay for their purchases with checks drawn on U.S. banks or with
funds they have in their brokerage accounts at PaineWebber or its correspondent
firms. Payment is due on the third Business Day after PaineWebber's New York
City headquarters office receives the purchase order.
 
OTHER INVESTORS
 
Investors who are not PaineWebber clients may purchase Fund shares and set up an
account through the Transfer Agent (PFPC Inc.) by completing an account
application, which may be obtained by calling 1-800-647-1568. The application
and check must be mailed to PFPC Inc., Attn: PaineWebber Mutual Funds, P.O. Box
8950, Wilmington, DE 19899.
 
Investors who already have money invested in a PaineWebber mutual fund, and want
to invest in another PaineWebber mutual fund, can:
 
 mail an application with a check; or
 
 open an account by exchanging from another PaineWebber mutual fund.
 
Investors do not have to send an application when making additional investments
in a Fund.
 
MINIMUM INVESTMENTS
 
<TABLE>
<S>                                               <C>
To open an account.............................   $1,000
To add to an account...........................   $  100
</TABLE>
 
A Fund may waive or reduce these minimums for:
 
 employees of PaineWebber or its affiliates; or
 
 participants in certain pension plans, retirement accounts, unaffiliated
 investment programs or the Fund's automatic investment plan.
 
                             ---------------------
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                               Prospectus Page 34
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
HOW TO EXCHANGE SHARES
 
As shareholders, investors have the privilege of exchanging Class A, B and C
shares for the same class of other PaineWebber mutual fund shares. For classes
of shares where no initial sales charge is imposed, a contingent deferred sales
charge may apply if the investor sells the shares acquired through the exchange.
Class Y shares are not exchangeable.
 
Exchanges may be subject to minimum investment requirements of the fund into
which exchanges are made.
 
 Investors who purchased their shares through an investment executive at
 PaineWebber or one of its correspondent firms may exchange their shares by
 contacting their investment executive in person or by telephone, mail or wire.
 
 Investors who do not have an account with an investment executive at
 PaineWebber or one of its correspondent firms may exchange their shares by
 writing a 'letter of instruction' to the Transfer Agent. The letter of
 instruction must include:
 
   the investor's name and address;
 
   the Fund's name;
 
   the Fund account number;
 
   the dollar amount or number of shares to be sold; and
 
   a guarantee of each registered owner's signature by an eligible institution,
   such as a commercial bank, trust company or stock exchange member.
 
The letter must be mailed to PFPC Inc., Attn: PaineWebber Mutual Funds, P.O. Box
8950, Wilmington, DE 19899.
 
No contingent deferred sales charge is imposed when shares are exchanged for the
corresponding class of shares of other PaineWebber mutual funds. A Fund will use
the purchase date of the initial investment to determine any contingent deferred
sales charge due when the acquired shares are sold. Fund shares may be exchanged
only after the settlement date has passed and payment for the shares has been
made. The exchange privilege is available only in those jurisdictions where the
sale of the fund shares to be acquired is authorized. This exchange privilege
may be modified or terminated at any time and, when required by SEC rules, upon
60 days' notice. See the back cover of this Prospectus for a listing of other
PaineWebber mutual funds.
 
- --------------------------------------------------------------------------------
                               HOW TO SELL SHARES
- --------------------------------------------------------------------------------
 
Investors can sell (redeem) shares at any time. Shares will be sold at the share
price for that class as next calculated after the order is received and accepted
(less any applicable contingent deferred sales charge). Share prices are
normally calculated at the close of regular trading on the New York Stock
Exchange (currently 4:00 p.m., Eastern time).
 
Investors who own more than one class of shares should specify which class they
are selling. If they do not, the Fund will assume they are first selling their
Class A shares, then Class C, and last, Class B.
 
If a shareholder wants to sell shares which were purchased recently, the Fund
may delay payment until it verifies that good payment was received. In the case
of purchases by check, this can take up to 15 days.
 
Investors who have an account with PaineWebber or one of PaineWebber's
correspondent firms can sell their shares by contacting their investment
executive. Investors who do not have an account and have bought their shares
through PFPC Inc., the Fund's Transfer Agent, may sell shares by writing a
'letter of instruction,' as detailed in 'How to Exchange Shares.'
 
Because the Funds incur certain fixed costs in maintaining shareholder accounts,
each Fund reserves the right to purchase back all of its shares in any
shareholder account with a net
 
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                               Prospectus Page 35
 



<PAGE>
 
<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
asset value of less than $500. If a Fund elects to do so, it will notify the
shareholder of the opportunity to increase the amount invested to $500 or more
within 60 days of the notice. A Fund will not purchase back accounts that fall
below $500 solely due to a reduction in net asset value per share.
 
REINSTATEMENT PRIVILEGE
 
Shareholders who sell their Class A shares may reinstate their Fund account
without a sales charge up to the dollar amount sold by purchasing the Fund's
Class A shares within 365 days after the sale. To take advantage of this
reinstatement privilege, shareholders must notify their investment executive at
PaineWebber or one of its correspondent firms at the time of purchase.
 
- --------------------------------------------------------------------------------
 
                                 OTHER SERVICES
- --------------------------------------------------------------------------------
 
Investors should consult their investment executives at PaineWebber or one of
its correspondent firms to learn more about the following services available
with respect to the Funds' Class A, Class B and C shares:
 
AUTOMATIC INVESTMENT PLAN
 
Investing on a regular basis helps investors meet their financial goals.
PaineWebber offers an Automatic Investment Plan with a minimum initial
investment of $1,000 through which a Fund will deduct $50 or more each month
from the investor's bank account to invest directly in the Fund. In addition to
providing a convenient and disciplined manner of investing, participation in the
Automatic Investment Plan enables the investor to use the technique of 'dollar
cost averaging.'
 
SYSTEMATIC WITHDRAWAL PLAN
 
The Systematic Withdrawal Plan allows investors to set up monthly, quarterly
(March, June, September and December), semiannual (June and December) or annual
(December) withdrawals from their PaineWebber Mutual Fund accounts. Minimum
balances and withdrawals vary according to the class of shares:
 
 CLASS A AND CLASS C SHARES. Minimum value of Fund shares is $5,000; minimum
 withdrawals of $100.
 
 CLASS B SHARES. Minimum value of Fund shares is $20,000; minimum monthly,
 quarterly, semiannual and annual withdrawals of $200, $400, $600 and $800,
 respectively.
 
Withdrawals under the Systematic Withdrawal Plan will not be subject to a
contingent deferred sales charge. An investor may not withdraw more than 12% of
the value of the Fund account when the investor signed up for the Plan (for
Class B shares annually; for Class A and C shares, during the first year under
the Plan). Shareholders who elect to receive dividends or other distributions in
cash may not participate in the Plan.
 
INDIVIDUAL RETIREMENT ACCOUNTS
 
Self-Directed IRAs are available though PaineWebber in which purchases of
PaineWebber mutual funds and other investments may be made. Investors
considering establishing an IRA should review applicable tax laws and should
consult their tax advisers.
 
TRANSFER OF ACCOUNTS
 
If investors holding shares of a Fund in a PaineWebber brokerage account
transfer their brokerage accounts to another firm, the Fund shares will be moved
to an account with the Transfer Agent. However, if the other firm has entered
into a selected dealer agreement with Mitchell Hutchins relating to the Fund,
the shareholder may be able to hold Fund shares in an account with the other
firm.
 
                             ---------------------
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                               Prospectus Page 36
 



<PAGE>
 
<PAGE>
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- --------------------------------------------------------------------------------
                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
- --------------------------------------------------------------------------------
                                   MANAGEMENT
- --------------------------------------------------------------------------------
 
Each Fund is governed by its board of trustees, which oversees the Fund's
operations. Each board has appointed Mitchell Hutchins as investment adviser and
administrator responsible for the Fund's operations (subject to the authority of
the board). As investment adviser and administrator, Mitchell Hutchins
supervises all aspects of each Fund's operations and makes and implements all
investment decisions for that Fund.
 
The boards, as part of their overall management responsibility, oversee various
organizations responsible for the day-to-day management of each Fund.
 
In accordance with procedures adopted by the boards, brokerage transactions for
the Funds may be conducted through PaineWebber or its affiliates and the Funds
may pay fees to PaineWebber for its services as lending agent in their portfolio
securities lending programs.
 
ABOUT THE INVESTMENT ADVISER
 
Mitchell Hutchins, located at 1285 Avenue of the Americas, New York, New York,
10019, is the asset management subsidiary of PaineWebber, which is wholly owned
by Paine Webber Group Inc., a publicly owned financial services holding company.
On May 31, 1997, Mitchell Hutchins was adviser or sub-adviser of 30 investment
companies with 65 separate portfolios and aggregate assets of approximately
$32.7 billion.
 
Personnel of Mitchell Hutchins may engage in securities transactions for their
own accounts pursuant to Mitchell Hutchins' code of ethics that establishes
procedures for personal investing and restricts certain transactions.
 
Dennis L. McCauley is a managing director and chief investment officer of fixed
income of Mitchell Hutchins responsible for overseeing all active fixed income
investments, including domestic and global taxable and tax-exempt mutual funds.
Prior to joining Mitchell Hutchins in 1994, Mr. McCauley worked for IBM
Corporation, where he was director of fixed income investments responsible for
developing and managing investment strategy for all fixed income and cash
management investments of IBM's pension fund and self-insured medical funds. Mr.
McCauley has also served as vice president of IBM Credit Corporation's mutual
funds and as a member of the retirement fund investment committee.
 
Elbridge (Ebby) T. Gerry III, a senior vice president of Mitchell Hutchins, is
the co-portfolio manager and has day-to-day responsibility for New York Tax-Free
Income Fund, California Tax-Free Income Fund and National Tax-Free Income Fund.
Mr. Gerry is also a portfolio manager for Municipal High Income Fund. In the
case of California Tax-Free Income Fund, Cynthia N. Bow, a vice president of
Mitchell Hutchins, is the co-portfolio manager and also has day-to-day
responsibility for the Fund. In the case of New York Tax-Free Income Fund and
National Tax-Free Income Fund, Richard S. Murphy, a senior vice president of
Mitchell Hutchins, is the co-portfolio manager and also has day-to-day
responsibility for the Funds. In the case of Municipal High Income Fund, William
W. Veronda, a senior vice president of Mitchell Hutchins, is a portfolio manager
and has day-to-day responsibility for the Fund. Mr. Gerry has held his Fund
responsibilities since January 1996. Ms. Bow and Mr. Veronda have held their
Fund responsibilities since April 1993 and September 1995, respectively. Mr.
Murphy has held his Fund responsibilities since July 1994 and January 1996 for
National Tax-Free Income Fund and New York Tax-Free Income Fund, respectively.
 
Mr. Gerry has portfolio management responsibility for over $4 billion in
municipal assets at Mitchell Hutchins, including municipal bond and money funds
and private accounts. Mr. Gerry has been with Mitchell Hutchins since January
1996. Prior to January 1996, Mr. Gerry had been asso-
 
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                               Prospectus Page 37
 



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<PAGE>
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
ciated with J.P. Morgan Private Banking since 1981, where he was responsible for
managing municipal assets, including several municipal bond funds. Ms. Bow has
been with Mitchell Hutchins since 1982. Mr. Murphy has been with Mitchell
Hutchins since April 1994. From 1990 to March 1994, he was a vice president at
American International Group, where he managed the municipal bond portfolio. Mr.
Veronda has been with Mitchell Hutchins since September 1995. From 1984 to
August 1995, he was a senior vice president and general manager at Invesco Funds
Group, where he managed municipal bond and high yield corporate bond portfolios.
 
Other members of Mitchell Hutchins' municipal investments group provide input on
market outlook, interest rate forecasts, and other considerations pertaining to
municipal investments. This group, together with the municipal portfolio
managers, comprise the Municipal Investment Team that sets the strategy for the
management of PaineWebber municipal bond funds. The Municipal Investment Term is
complemented by a team of research analysts specializing in economic, credit,
quantitative and market research.
 
MANAGEMENT FEES & OTHER EXPENSES
 
Each Fund pays Mitchell Hutchins a monthly fee for its services. For the fiscal
year ended February 28, 1997, Mitchell Hutchins received a monthly fee for these
services from each of California Tax-Free Income Fund and National Tax-Free
Income Fund at the annual rate of 0.50% of that Fund's average daily net assets
and from each of Municipal High Income Fund and New York Tax-Free Income Fund at
the annual rate of 0.60% of that Fund's average daily net assets.
 
Each Fund pays PaineWebber an annual fee of $4.00 per active shareholder account
held at PaineWebber for services not provided by the Transfer Agent.
 
DISTRIBUTION ARRANGEMENTS
 
Mitchell Hutchins is the distributor of each Fund's shares and has appointed
PaineWebber as the exclusive dealer for the sale of those shares. There is no
distribution plan with respect to the Funds' Class Y shares. Under distribution
plans for Class A, Class B and Class C shares ('Class A Plan,' 'Class B Plan'
and 'Class C Plan,' collectively, 'Plans'), each Fund pays Mitchell Hutchins:
 
 Monthly service fees at the annual rate of 0.25% of the average daily net
 assets of each class of shares.
 
 Monthly distribution fees at the annual rate of 0.75% of the average daily net
 assets of Class B shares and 0.50% of the average daily net assets of the Class
 C Shares.
 
Under the Plans, Mitchell Hutchins primarily uses the service fees to pay
PaineWebber for shareholder servicing, currently at the annual rate of 0.25% of
the aggregate investment amounts maintained in each Fund's Class A, Class B and
Class C shares by PaineWebber clients. PaineWebber then compensates its
investment executives for shareholder servicing that they perform and offsets
its own expenses in servicing and maintaining shareholder accounts.
 
Mitchell Hutchins uses the distribution fees under the Class B and Class C Plans
to:
 
 Offset the commissions it pays to PaineWebber for selling each Fund's Class B
 and Class C shares, respectively.
 
 Offset each Fund's marketing costs attributable to such classes, such as
 preparation, printing and distribution of sales literature, advertising and
 prospectuses to prospective investors and related overhead expenses, such as
 employee salaries and bonuses.
 
PaineWebber compensates investment executives when Class B and Class C shares
are bought by investors, as well as on an ongoing basis. Mitchell Hutchins
receives no special compensation from any of the Funds or investors at the time
Class B or C shares are bought.
 
Mitchell Hutchins receives the proceeds of the initial sales charge paid when
Class A shares are bought and of the contingent deferred sales charge paid upon
sales of shares. These proceeds may be used to cover distribution expenses.
 
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                               Prospectus Page 38
 



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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
The Plans and the related distribution contracts for each class of shares
('Distribution Contracts') specify that each Fund must pay service and
distribution fees to Mitchell Hutchins for its activities, not as reimbursement
for specific expenses incurred. Therefore, even if Mitchell Hutchins' expenses
exceed the service or distribution fees it receives, the Funds will not be
obligated to pay more than those fees. On the other hand, if Mitchell Hutchins'
expenses are less than such fees, it will retain its full fees and realize a
profit. Expenses in excess of service and distribution fees received or accrued
through the termination date of any Plan will be Mitchell Hutchins' sole
responsibility and not that of the Funds. Annually, the board of each Fund
reviews each Plan and Mitchell Hutchins' corresponding expenses for each class
separately from the Plans and expenses of the other classes.
 
- --------------------------------------------------------------------------------
                    DETERMINING THE SHARES' NET ASSET VALUE
- --------------------------------------------------------------------------------
 
The net asset value of a Fund's shares fluctuates and is determined separately
for each class as of the close of regular trading on the New York Stock Exchange
(currently 4:00 p.m., Eastern time) each Business Day. Each Fund's net asset
value per share is determined by dividing the value of the securities held by
the Fund, plus any cash or other assets, minus all liabilities, by the total
number of Fund shares outstanding.
 
Each Fund values its assets based on their current market value when market
quotations are readily available or, when such market quotations are not
available, based upon appraisals received from a pricing system using a
computerized matrix system or based upon appraisals derived from information
from recognized dealers. If such value cannot be established, assets are valued
at fair value as determined in good faith by or under the direction of each
Fund's board. The amortized cost method generally is used to value debt
obligations with 60 days or less remaining to maturity, unless the board
determines that this does not represent fair value. It should be recognized that
judgment plays a greater role in valuing below investment grade municipal
securities in which the Funds may invest because there is less reliable,
objective data available.
 
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                              DIVIDENDS AND TAXES
- --------------------------------------------------------------------------------
 
DIVIDENDS
 
Dividends from each Fund's net investment income are declared daily and paid
monthly.
 
Net investment income includes accrued interest and discount, less amortization
of premium and accrued expenses, with respect to municipal securities. Each Fund
distributes annually substantially all of its net capital gain (the excess of
net long-term capital gain over net short-term capital loss), if any, together
with any other taxable income (including any net short-term capital gain). A
Fund may make additional distributions if necessary to avoid a 4% excise tax on
certain undistributed income and capital gain.
 
Dividends and other distributions paid on each class of shares of each Fund are
calculated at the same time and in the same manner. Dividends on Class A, B and
C shares of a Fund are expected to be lower than those on its Class Y shares
because the other shares have higher expenses resulting from their service fees
and, in the case of Class B and Class C shares, their distribution fees.
Dividends on Class B and Class C shares of a Fund are expected to be lower than
 
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                               Prospectus Page 39
 



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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
those on its Class A shares because Class B and Class C shares have higher
expenses resulting from their distribution fees. For the same reason, dividends
on a Fund's Class B shares are expected to be lower than those on its Class C
shares. Dividends on each class also might be affected differently by the
allocation of other class-specific expenses. See 'General Information.'
 
The Funds' dividends and other distributions are paid in additional Fund shares
of the same class at net asset value, unless the shareholder has requested cash
payments. Shareholders who wish to receive dividends and other distributions in
cash, either mailed to the shareholder by check or credited to their PaineWebber
accounts, should contact their investment executives at PaineWebber or one of
its correspondent firms or complete the appropriate section of the account
application.
 
TAXES
 
Each Fund intends to continue to qualify for treatment as a regulated investment
company ('RIC') under the Internal Revenue Code ('Code') so that it will not
have to pay federal income tax on the part of its investment company taxable
income (generally consisting of taxable net investment income and net short-term
capital gain) and net capital gain that it distributes to its shareholders.
 
Shareholders generally may exclude from gross income for federal income tax
purposes distributions by a Fund that it designates as 'exempt-interest
dividends.' In order to pay exempt-interest dividends to its shareholders, a
Fund must (and each Fund intends to continue to) satisfy the requirement that,
at the close of each quarter of its taxable year, at least 50% of the value of
its total assets consists of municipal securities.
 
If a Fund realizes capital gains as a result of market transactions, any
distribution of those gains is taxable to its shareholders.
 
Shareholders may not deduct interest on indebtedness they incur or continue in
order to purchase or carry Fund shares. If a Fund invests in certain PABs,
shareholders must include a portion of their exempt-interest dividends from that
Fund in calculating their liability for the federal alternative minimum tax.
Corporate shareholders must include all of their exempt-interest dividends in
calculating their liability for that tax.
 
YEAR-END TAX REPORTING
 
Following the end of each calendar year, each Fund notifies its shareholders of
the amounts of exempt-interest dividends, any portion of those dividends that is
not AMT exempt interest, taxable dividends and other distributions paid (or
deemed paid) that year.
 
BACKUP WITHHOLDING
 
Each Fund must withhold 31% of all dividends, capital gain distributions and
redemption proceeds payable to individuals and certain other non-corporate
shareholders who do not provide the Fund with a correct taxpayer identification
number. Withholding at that rate is also required from dividends and capital
gain distributions payable to such shareholders who otherwise are subject to
backup withholding.
 
TAX ON THE SALE OR EXCHANGE OF FUND SHARES
 
A sale (redemption) by shareholders of their Fund shares may result in a taxable
gain or loss. This depends upon whether the shareholders receive more or less
than their adjusted basis for the shares (which normally includes any initial
sales charge paid on Class A shares). An exchange of any Fund's shares for
shares of another PaineWebber mutual fund generally will have similar tax
consequences. In addition, if a Fund's shares are bought within 30 days before
or after selling other shares of that Fund (regardless of class) at a loss, all
or a portion of that loss will not be deductible and will increase the basis of
the newly purchased shares.
 
SPECIAL TAX RULES FOR CLASS A SHAREHOLDERS
 
Special tax rules apply when a shareholder sells (redeems) or exchanges Class A
shares within 90 days of purchase and subsequently acquires Class A shares of
the same or another PaineWebber mutual fund without paying a sales charge due to
the 365-day reinstatement privilege or the exchange privilege. In these cases,
any gain on
 
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
the sale or exchange of the original Class A shares would be increased, or any
loss would be decreased, by the amount of the sales charge paid when those
shares were bought, and that amount would increase the basis of the PaineWebber
mutual fund shares subsequently acquired.
 
CALIFORNIA TAXES
 
If California Tax-Free Income Fund continues to qualify as a RIC under the Code
and at the end of each quarter of its taxable year at least 50% of the value of
its total assets consists of California Obligations, the exempt-interest
dividends it pays that are derived from interest on qualifying California
Obligations will be exempt from California personal income tax ('California
exempt-interest dividends'), but not California franchise tax. Dividends and
other distributions derived from interest on other municipal securities, taxable
income and capital gains are taxable under California law at ordinary income
rates. Shareholders may not deduct interest on indebtedness they incur to
purchase or carry shares of the Fund for California personal income tax
purposes. Shareholders receive annual notification of the portion of the Fund's
tax-exempt income attributable to issuers in California and other states.
California exempt-interest dividends may affect the calculation of certain
adjustments to alternative minimum taxable income for corporate shareholders.
The Fund itself will not be subject to California franchise or corporate income
tax on interest income or net capital gain distributed to its shareholders.
 
NEW YORK STATE AND NEW YORK CITY TAXES
 
If New York Tax-Free Income Fund continues to qualify as a RIC under the Code
and at the end of each quarter of its taxable year at least 50% of the value of
its total assets consists of New York Obligations, the exempt-interest dividends
it pays that are derived from interest on qualifying New York Obligations will
be exempt from New York State and New York City personal income taxes, but not
corporate franchise taxes. Dividends and other distributions derived from
taxable income and capital gains are not exempt from New York State and New York
City taxes. Shareholders may not deduct interest on indebtedness they incur or
continue in order to purchase or carry shares of the Fund for New York State or
New York City personal income tax purposes. Shareholders receive annual
notification of the portion of the Fund's tax-exempt income attributable to
issuers in New York State and other states. The Fund's interest income that is
distributed to shareholders will generally not be taxable to the Fund for
purposes of the New York State corporation franchise tax or the New York City
general corporation tax.
 
                                    * * * *
 
The foregoing only summarizes some of the important federal income tax and
California, New York State and New York City personal income tax considerations
generally affecting each Fund and its shareholders. Please see the further
discussion in the Statement of Additional Information. Prospective shareholders
are urged to consult their tax advisers.
 
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                              GENERAL INFORMATION
- --------------------------------------------------------------------------------
 
ORGANIZATION
 
California Tax-Free Income Fund and National Tax-Free Income Fund are
diversified series of PaineWebber Mutual Fund Trust, an open-end management
investment company formed on November 21, 1986 as a business trust under the
laws of the Commonwealth of Massachusetts. Municipal High Income Fund and New
York Tax-Free Income Fund are non-diversified series of PaineWebber Municipal
Series, an open-end management investment company formed on January 28, 1987 as
a business trust under the laws of the Commonwealth of Massachusetts. The
trustees of PaineWebber Mutual Fund Trust and
 
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                                  PAINEWEBBER
     CALIFORNIA  TAX-FREE  INCOME  FUND      NATIONAL  TAX-FREE  INCOME  FUND
           MUNICIPAL HIGH INCOME FUND    NEW YORK TAX-FREE INCOME FUND
 
PaineWebber Municipal Series (each a 'Trust') have authority to issue an
unlimited number of shares of beneficial interest of separate series, with a par
value of $0.001 per share.
 
SHARES
 
The shares of each Fund are divided into four classes, designated Class A, Class
B, Class C and Class Y shares. Each class of shares of a Fund represents an
identical interest in that Fund's investment portfolio and has the same rights,
privileges and preferences. However, each class may differ with respect to sales
charges, if any, distribution and/or service fees, if any, other expenses
allocable exclusively to each class, voting rights on matters exclusively
affecting that class, and its exchange privilege, if any. The different sales
charges and other expenses applicable to the different classes of shares of a
Fund will affect the performance of those classes.
 
Each share of each Fund is entitled to participate equally in dividends, other
distributions and the proceeds of any liquidation of that Fund. However, due to
the differing expenses of the classes, dividends on a Fund's Class A, B, C and Y
shares will differ.
 
Although each Trust is offering only the shares of its Funds, it is possible
that a Trust could become liable for misstatement in this Prospectus about a
Fund of the other Trust. The board of each Trust considered this factor in
approving the use of a combined Prospectus.
 
VOTING RIGHTS
 
Shareholders of each Fund are entitled to one vote for each full share held and
fractional votes for fractional shares held. Voting rights are not cumulative,
and, as a result, the holders of more than 50% of all the shares of a Trust may
elect all of its board members. The shares of a Fund will be voted together
except that only the shareholders of a particular class of a Fund may vote on
matters affecting only that class, such as the terms of a Plan as it relates to
that class. The shares of each series of a Trust will be voted separately,
except when an aggregate vote of all the securities is required by law.
 
SHAREHOLDER MEETINGS
 
The Funds do not hold annual meetings.
 
Shareholders of record of no less than two-thirds of the outstanding shares of a
Trust may remove a board member through a declaration in writing or by vote cast
in person or by proxy at a meeting called for that purpose. A meeting will be
called to vote on the removal of a board member at the written request of
holders of 10% of a Trust's outstanding shares.
 
REPORTS TO SHAREHOLDERS
 
Each Fund sends its shareholders audited annual and unaudited semiannual
reports, each of which includes a list of the investment securities held by the
Fund as of the end of the period covered by the report. The Statement of
Additional Information, which is incorporated herein by reference, is available
to shareholders upon request.
 
CUSTODIAN & RECORDKEEPING AGENT; TRANSFER & DIVIDEND DISBURSING AGENT
 
State Street Bank and Trust Company, located at One Heritage Drive, North
Quincy, Massachusetts 02171, serves as custodian and recordkeeping agent for the
Funds. PFPC Inc., a subsidiary of PNC Bank, N.A., serves as the Funds' transfer
and dividend disbursing agent. It is located at 400 Bellevue Parkway,
Wilmington, DE 19809.
 
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                               Prospectus Page 42






<PAGE>
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
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                                    APPENDIX
- --------------------------------------------------------------------------------
 
Municipal bonds are rated by Moody's and S&P. Moody's and S&P also publish
separate ratings for municipal notes and tax-exempt commercial paper.
Descriptions of these ratings are set forth below.
 
DESCRIPTION OF MOODY'S MUNICIPAL BOND RATINGS:
 
Aaa.  Bonds rated Aaa are judged to be of the best quality. They carry the
smallest degree of investment risk and are generally referred to as 'gilt edge.'
Interest payments are protected by a large or by an exceptionally stable margin
and principal is secure. While the various protective elements are likely to
change, such changes as can be visualized are most unlikely to impair the
fundamentally strong position of such issues.
 
Aa.  Bonds rated Aa are judged to be of high quality by all standards. Together
with the Aaa group they comprise what are generally known as high grade bonds.
They are rated lower than the best bonds because margins of protection may not
be as large as in Aaa securities or fluctuation of protective elements may be of
greater amplitude or there may be other elements present which make the
long-term risks appear somewhat larger than in Aaa securities.
 
A.  Bonds rated A possess many favorable investment attributes and are to be
considered as upper medium grade obligations. Factors giving security to
principal and interest are considered adequate, but elements may be present
which suggest a susceptibility to impairment sometime in the future.
 
Baa.  Bonds rated Baa are considered as medium grade obligations, i.e., they are
neither highly protected nor poorly secured. Interest payments and principal
security appear adequate for the present but certain protective elements may be
lacking or may be characteristically unreliable over any great length of time.
Such bonds lack outstanding investment characteristics and in fact have
speculative characteristics as well.
 
Ba.  Bonds rated Ba are judged to have speculative elements; their future cannot
be considered as well assured. Often the protection of interest and principal
payments may be very moderate and thereby not well safeguarded during both good
and bad times over the future. Uncertainty of position characterizes bonds in
this class.
 
B.  Bonds rated B generally lack characteristics of the desirable investment.
Assurance of interest and principal payments or of maintenance of other terms of
the contract over any long period of time may be small.
 
Caa.  Bonds rated Caa are of poor standing. Such issues may be in default or
there may be present elements of danger with respect to principal or interest.
 
Ca.  Bonds rated Ca represent obligations which are speculative in a high
degree. Such issues are often in default or have other marked shortcomings.
 
C.  Bonds rated C are the lowest rated class of bonds, and issues so rated can
be regarded as having extremely poor prospects of ever attaining any real
investment standing.
 
NOTE:  Moody's applies numerical modifiers 1, 2 and 3 in each generic rating
classification from Aa to B. The modifier 1 indicates that the issue ranks in
the higher end of its generic rating category; the modifier 2 indicates a
mid-range ranking; and the modifier 3 indicates that the issue ranks in the
lower end of its generic category.
 
DESCRIPTION OF S&P'S MUNICIPAL BOND RATINGS:
 
'AAA'  An obligation rated 'AAA' has the highest rating assigned by Standard &
Poor's. The obligor's capacity to meet its financial commitment on the
obligation is extremely strong.
 
'AA'  An obligation rated 'AA' differs from the highest-rated obligations only
in small degree. The obligor's capacity to meet its financial commitment on the
obligation is very strong.
 
'A'  An obligation rated 'A' is somewhat more susceptible to the adverse effects
of changes in circumstances and economic conditions than obligations in
higher-rated categories. However, the
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
obligor's capacity to meet its financial commitment on the obligation is still
strong.
 
'BBB'  An obligation rated 'BBB' exhibits adequate protection parameters.
However, adverse economic conditions or changing circumstances are more likely
to lead to a weakened capacity of the obligor to meet its financial commitment
on the obligation.
 
Obligations rated 'BB', 'B', 'CCC', 'CC' and 'C' are regarded as having
significant speculative characteristics. 'BB' indicates the least degree of
speculation and 'C' the highest. While such obligations will likely have some
quality and protective characteristics, these may be outweighed by large
uncertainties or major exposures to adverse conditions.
 
'BB'  An obligation rated 'BB' is less vulnerable to nonpayment than other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse business, financial or economic conditions, which could lead to the
obligor's inadequate capacity to meet its financial commitment on the
obligation.
 
'B'  An obligation rated 'B' is more vulnerable to nonpayment than obligations
rated 'BB', but the obligor currently has the capacity to meet its financial
commitment on the obligation. Adverse business, financial, or economic
conditions will likely impair the obligor's capacity or willingness to meet its
financial commitment on the obligation.
 
'CCC'  An obligation rated 'CCC' is currently vulnerable to nonpayment and is
dependent upon favorable business, financial, and economic conditions for the
obligor to meet its financial commitment on the obligation. In the event of
adverse business, financial, or economic conditions, the obligor is not likely
to have the capacity to meet its financial commitment on the obligation.
 
'CC'  An obligation rated 'CC' is currently highly vulnerable to nonpayment.
 
'C'  The 'C' rating may be used to cover a situation where a bankruptcy petition
has been filed or similar action has been taken, but payments on this obligation
are being continued.
 
'D'  An obligation rated 'D' is in payment default. The 'D' rating category is
used when payments on an obligation are not made on the date due even if the
applicable grace period has not expired, unless Standard & Poor's believes that
such payments will be made during such grace period. The 'D' rating also will be
used upon the filing of a bankruptcy petition or the taking of a similar action
if payments on an obligation are jeopardized.
 
Plus (+) or Minus (-): The ratings from AA to CCC may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
DESCRIPTION OF MOODY'S RATINGS OF STATE AND MUNICIPAL SHORT-TERM OBLIGATIONS:
 
Moody's ratings for state and municipal short-term obligations are designated
Moody's Investment Grade (MIG). Such ratings recognize the differences between
short-term credit risk and long-term risk. Factors affecting the liquidity of
the borrower and short-term cyclical elements are critical in short-term
ratings, while other factors may be of major importance in bond risk, long-term
secular trends, for example, may be less important over the short run. A
short-term rating may also be assigned on an issue having a demand
feature -- variable rate demand obligation (VRDO). Such ratings are designated
as VMIG, SG or, if the demand features is not rated, NR. Short-term ratings on
issues with demand features are differentiated by use of the VMIG symbol to
reflect such characteristics as payment upon periodic demand rather than fixed
maturity dates and payment relying on external liquidity. Additionally,
investors should be alert to the fact that the source of payment may be limited
to the external liquidity with no or limited legal recourse to the issuer in the
event the demand is not met.
 
MIG-1/VMIG-1.  This designation denotes best quality. There is present strong
protection by established cash flows, superior liquidity support or demonstrated
broad-based access to the market for refinancing.
 
MIG-2/VMIG-2.  This designation denotes high quality. Margins of protection are
ample although not so large as in the preceding group.
 
MIG-3/VMIG-3.  This designation denotes favorable quality. All security elements
are accounted for but there is lacking the undeniable strength of the preceding
grades. Liquidity
 
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                                  PAINEWEBBER
        CALIFORNIA TAX-FREE INCOME FUND    NATIONAL TAX-FREE INCOME FUND
          MUNICIPAL HIGH INCOME FUND     NEW YORK TAX-FREE INCOME FUND
 
and cash flow protection may be narrow and market access for refinancing is
likely to be less well established.
 
MIG-4/VMIG-4.  This designation denotes adequate quality. Protection commonly
regarded as required of an investment security is present and although not
distinctly or predominantly speculative, there is specific risk.
 
SG.  This designation denotes speculative quality. Debt instruments in this
category lack margins of protection.
 
DESCRIPTION OF S&P'S RATINGS OF STATE AND MUNICIPAL NOTES AND OTHER SHORT-TERM
LOANS:
 
A Standard & Poor's note rating reflects the liquidity concerns and market
access risks unique to notes. Notes due in 3 years or less will likely receive a
note rating. Notes maturing beyond 3 years will most likely receive a long-term
debt rating. The following criteria will be used in making that assessment.
 
 -- Amortization schedule (the larger the final maturity relative to other
    maturities, the more likely it will be treated as a note).
 
 -- Source of payment (the more dependent the issue is on the market for its
    refinancing, the more likely it will be treated as a note).
 
SP-1.  Strong capacity to pay principal and interest. An issue determined to
possess very strong characteristics are given a plus (+) designation.
 
SP-2.  Satisfactory capacity to pay principal and interest with some
vulnerability to adverse financial and economic changes over the term of the
notes.
 
SP-3.  Speculative capacity to pay principal and interest.
 
DESCRIPTION OF SHORT-TERM DEBT COMMERCIAL PAPER RATINGS
 
Issuers rated PRIME-1 by Moody's (or related supporting institutions) have a
superior capacity for repayment of short-term promissory obligations. Prime-1
repayment capacity will normally be evidenced by the following characteristics:
 
 Leading market positions in well established industries.
 
 High rates of return on funds employed.
 
 Conservative capitalization structures with moderate reliance on debt and ample
asset protection.
 
 Broad margins in earning coverage of fixed financial charges and high internal
cash generation.
 
 Well established access to a range of financial markets and assured sources of
alternate liquidity.
 
Issuers rated PRIME-2 (or supporting institutions) have a strong ability for
repayment of senior short-term debt obligations. This will normally be evidenced
by rating of the characteristics cited above but to a lesser degree. Earnings
trends and coverage ratios, while sound, may be more subject to variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternate liquidity is maintained.
 
Commercial paper rated A by S&P have the following characteristics.
 
A-1.  This highest category indicates that the degree of safety regarding timely
payment is strong. Those issues determined to possess extremely strong safety
characteristics are denoted with a plus sign (+) designation.
 
A-2.  Capacity for timely payment on issues with this designation is
satisfactory. However, the 'relative' degree of safety is not as high as for
issues designated 'A-1'.
 
A-3.  Issues carrying this designation have adequate capacity for timely
payment. They are, however, more vulnerable to the adverse side effects of
changes in circumstances than obligations carrying the higher designations.
 
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                         ------------------------------
                  PaineWebber California Tax-Free Income Fund
                   PaineWebber National Tax-Free Income Fund
                     PaineWebber Municipal High Income Fund
                   PaineWebber New York Tax-Free Income Fund

           PROSPECTUS  --  JULY 1, 1997, AS REVISED DECEMBER 23, 1997

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<TABLE>
<S>                                            <C>
    PAINEWEBBER BOND FUNDS                         PAINEWEBBER STOCK FUNDS
    High Income Fund                               Capital Appreciation Fund
    Investment Grade Income Fund                   Financial Services Growth Fund
    Low Duration U.S. Government                   Growth Fund
      Income Fund                                  Growth and Income Fund
    Strategic Income Fund                          Small Cap Fund
    U.S. Government Income Fund                    Utility Income Fund
    PAINEWEBBER TAX-FREE BOND FUNDS                PAINEWEBBER GLOBAL FUNDS
    California Tax-Free Income Fund                Asia Pacific Growth Fund
    Municipal High Income Fund                     Emerging Markets Equity Fund
    National Tax-Free Income Fund                  Global Equity Fund
    New York Tax-Free Income Fund                  Global Income Fund
    PAINEWEBBER ASSET ALLOCATION FUNDS             PAINEWEBBER MONEY MARKET FUND
    Balanced Fund
    Tactical Allocation Fund
</TABLE>
 
           A prospectus containing more complete information for any
           of these funds, including charges and expenses, can be
           obtained from a PaineWebber investment executive or
           correspondent firm. Please read it carefully before
           investing. It is important you have all the information
           you need to make a sound investment decision.
 
'c'1997 PaineWebber Incorporated
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                           STATEMENT OF DIFFERENCES


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