EATON VANCE MUNICIPALS TRUST
N-30D, 1997-12-30
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<PAGE>
 
  [LOGO OF EATON       Investing
VANCE APPEARS HERE]    
                       for the 
                                                               EDUCATION
                       21st                             [PHOTOGRAPH OF BUILDING
                                                             APPEARS HERE]
                       Century


  Annual Report September 30, 1997



                                 MASSACHUSETTS
[PHOTOGRAPH                        MUNICIPAL
  OF ROAD                            BOND 
APPEARS HERE]                      PORTFOLIO


                                  Eaton Vance
                     Global Management-Global Distribution


[PICTURE OF BOSTON HARBOR APPEARS HERE]

<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

LETTER TO SHAREHOLDERS

[PHOTO OF THOMAS J. FETTER APPEARS HERE]
Thomas J. Fetter,
President

The municipal bond market continued to respond favorably in 1997 to an economic
climate of solid growth, yet with low inflation. Gross domestic product (GDP), a
widely-used measure of economic performance, grew 4.9% in the first quarter,
3.3% in the second, and 3.5% in the third. However, inflation remained in the 
2-to-3% range due to higher productivity brought on by technology and an
increase in global competition. While the Federal Reserve elected to raise the
Fed Funds Rate -- the primary short-term interest rate benchmark -- 0.25% to
5.5% in March, it has since maintained a stable interest rate policy in response
to a benign inflation outlook. Not surprisingly, municipal bonds have turned in
solid returns, with the Lehman Brothers Municipal Bond Index* -- an unmanaged
index of municipal bonds -- rising 9.0% during the year ended September 30,
1997.

The municipal bond market has been characterized by heavy issuance and strong
investor demand.

According to Standard & Poor's, nearly $227 billion in municipal securities were
brought to market in 1996, a 14% increase from the prior year. Thus far in 1997,
municipal issuance has kept up that pace. Issuers have redeemed older bonds with
relatively high coupons and replaced them with new bonds bearing lower coupons.
This municipal refunding activity has been sparked in part by the strong market
rally of recent months that has seen yields for 30-year AAA-rated general
obligations decline to the 5.25% level at September 30. At that level, municipal
yields represent 82% of 30-year Treasury yields, making them an attractive
option for investors.
                           [BAR CHART APPEARS HERE]

Municipal Bond yield 82% of Treasury yields


      5.25%                                            8.20% 

30 - year AAA rated                             Taxable equivalent yield    
General Obligation (GO) Bonds*                  in 36% tax bracket    
                          
      
      6.40%                    

30 Year Treasury bond                                                   
 


Principal and interest payments of Treasury securities are guaranteed by the 
U.S. government.

*GO yields are a compilation of a representative variety of general obligations 
and are not necessarily representative of the Fund's yield. Statistics as of 
September 30, 1997.

Past performance is no guarantee of future results.
Source: Bloomberg, L.P.

Amid Washington's newly found fiscal responsibility, the outlook for municipal
bonds appears bright.

We believe the long-term outlook for municipal bonds has improved in the past
year for several reasons. First, Congress and the Clinton Administration agreed
to balance the budget by 2002. This would sharply reduce the government's
borrowing needs, leading to lower interest rates and channeling investments into
more productive areas of the economy. Second, the marginal tax rates of many
taxpayers remain high. For them, municipal bonds may still be the best vehicle
for tax relief. And finally, a balanced investment portfolio features equities,
bonds, and cash. The stock market has shown higher-than-normal volatility this
year, capped by steep price declines in late October. Following three years of
stock market outperformance, we believe investors should consider reallocating a
portion of their portfolios to bonds to maintain a prudent asset allocation. For
these reasons, we believe that the municipal market will continue to attract
tax-conscious investors. Eaton Vance will continue its leadership role in
seeking high, tax-free income.


                                        Sincerely,

                                        /s/ Thomas J. Fetter

                                        Thomas J. Fetter,
                                        President
                                        November 10, 1997

* It is not possible to invest directly in an index.

- --------------------------------------------------------------------------------
Mutual fund shares are not insured by the FDIC and are not deposits or other
obligations of, or guaranteed by, any depository institution. Shares are subject
to investment risks, including possible loss of principal invested.
- --------------------------------------------------------------------------------

                                       2
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

INVESTMENT UPDATE


[PHOTO OF ROBERT B. MACINTOSH APPEARS HERE] 
Robert B. MacIntosh,
Portfolio Manager


The Economy
- --------------------------------------------------------------------------------
 .  Massachusetts' economy benefits from diverse sources of strength -- most
   notably the high-technology and financial services industries -- which have
   produced solid growth, high personal incomes, and low unemployment. The
   unemployment rate for September, 1997, was 4.0%, well below the 4.9% national
   rate.

 .  Massachusetts is one of the nation's leaders in several high-technology
   businesses, which include software, biotechnology, and the Internet. In the
   mutual funds industry, Boston is second only to New York, employing 45,000,
   while in biotechnology, Massachusetts is also one of the nation's leading
   employers.

 .  Despite the booming economy, however, Massachusetts has one of the highest
   per capita debt levels in the nation. Major projects, such as a new
   convention center and the Central Artery/Third Harbor Tunnel Project, could
   create financial pressures in the years to come.

Management Discussion
- --------------------------------------------------------------------------------
 .  The past 12 months has been a good period for the bond market, with a general
   decline in yields giving way to price increases. During this period, we have
   had the right blend of coupons and call protection to take advantage of this
   environment.

 .  We added some zero coupon bonds to the Portfolio, which are typically hard to
   find. We have also replaced several older bonds having shorter call features
   with newer, longer-call bonds. Both of these measures improved the
   Portfolio's structure and added performance upside.

 .  Our staff of research analysts continued to do an outstanding job. In the
   Massachusetts Portfolio, several credits had ratings upgrades. This not only
   helped the Fund's performance, but also speaks well of our analysts' ability
   to find value in the market.

The Fund
- --------------------------------------------------------------------------------
 .  The Massachusetts Municipal Bond Portfolio paid its shareholders monthly
   income dividends totaling $0.532 per share during the year ended September
   30, 1997./1/

 .  Based on the most recent dividend and the Portfolio's net asset value per
   share of $9.89 on September 30, 1997, the Portfolio's distribution rate at
   net asset value was 5.36%./2/

 .  To equal the Portfolio's distribution rate in a taxable investment, a couple
   in the combined 43.68% federal and state tax bracket would have to receive a
   yield of 9.52%.

Your Investment at Work
- --------------------------------------------------------------------------------
   Massachusetts Health and Educational Facilities Authority Revenue Bonds --
   North Adams Regional Hospital
                                        [GRAPHIC OF MEDICAL SYMBOL APPEARS HERE]

 .  This bond issue refunded a previous issue, which had financed a major
   renovation project at the North Adams Regional Hospital.

 .  The project included renovating 47,000 square feet in three floors of the
   hospital's main building; converting the fourth floor from a medical/surgical
   unit to an inpatient psychiatric unit; and constructing a two-story addition
   to house outpatient facilities and office space.

 .  These high-yielding bonds not only give the Fund a solid income stream, but
   are also backed by a sound medical institution fulfilling a vital community
   need.

- --------------------------------------------------------------------------------
/1/A portion of the Fund's income may be subject to federal and state income
taxes and/or federal alternative minimum tax. /2/The Fund's distribution rate
represents actual distributions paid to shareholders and is calculated daily by
dividing the last distribution per share (annualized) by the net asset value.
/3/Five Largest Sectors are subject to change due to active management. *Source:
Towers Data Systems, Bethesda, MD. Investment operations commenced on 6/17/93.
Index information is available only at month-end; therefore, the line comparison
begins at the next month-end following the commencement of the Fund's investment
operations. The chart compares the Fund's total return with that of the Lehman
Brothers Municipal Bond Index, a broad-based, unmanaged market index. Returns
are calculated by determining the percentage change in net asset value with all
distributions reinvested. The lines on the chart represent total returns of
$10,000 hypothetical investments in the Fund and the Index. The Index's total
return does not reflect commissions or expenses that would have been incurred if
an investor individually purchased or sold the securities represented in the
Index. It is not possible to invest directly in an Index.
Past performance is no guarantee of future results. Investment return and
principal value will fluctuate so that shares, when redeemed, may be worth more
or less than their original cost.

- --------------------------------------------------------------------------------
                           [BAR CHART APPEARS HERE]
Five Largest Sectors/3/
as of September 30, 1997
<TABLE> 
<S>                                                                      <C> 
Hospitals                                                                16.4%
Transportation                                                           12.0%
Water & Sewer                                                            10.6%
Housing                                                                  10.4%
Insured-Hospitals                                                        8.5%
</TABLE> 

Comparison of Change in Value of a $10,000 Investment in the Fund vs. the Lehman
Brothers Municipal Bond Index.*
From June 30, 1993 through September 30, 1997

                           [LINE CHART APPEARS HERE]
<TABLE> 
<CAPTION> 
                 Massachusetts Municipal            Lehman Brothers    
  Date             Fund Bond Portfolio            Municipal Bond Index
  ----             -------------------            --------------------
<S>              <C>                              <C> 
 6/30/93                $10,000                         $10,000
 7/31/93                 $9,930                         $10,013
 8/31/93                $10,215                         $10,221
 9/30/93                $10,332                         $10,338
10/31/93                $10,338                         $10,358
11/30/93                $10,234                         $10,266
12/31/93                $10,455                         $10,483
 1/31/94                $10,567                         $10,603
 2/28/94                $10,314                         $10,328
 3/31/94                 $9,799                          $9,908
 4/30/94                 $9,785                          $9,992
 5/31/94                 $9,876                         $10,078
 6/30/94                 $9,786                         $10,020
 7/31/94                 $9,975                         $10,200
 8/31/94                $10,021                         $10,236
 9/30/94                 $9,837                         $10,086
10/31/94                 $9,588                          $9,907
11/30/94                 $9,301                          $9,727
12/31/94                 $9,587                          $9,941
 1/31/95                 $9,955                         $10,266
 2/28/95                $10,276                         $10,523
 3/31/95                $10,377                         $10,644
 4/30/95                $10,376                         $10,656
 5/31/95                $10,655                         $10,996
 6/30/95                $10,473                         $10,900
 7/31/95                $10,536                         $11,003
 8/31/95                $10,675                         $11,143
 9/30/95                $10,759                         $11,214
10/31/95                $10,958                         $11,377
11/30/95                $11,179                         $11,566
12/31/95                $11,344                         $11,677
 1/31/96                $11,373                         $11,765
 2/28/96                $11,252                         $11,685
 3/31/96                $11,093                         $11,536
 4/30/96                $11,076                         $11,503
 5/31/96                $11,092                         $11,499
 6/30/96                $11,208                         $11,624
 7/31/96                $11,290                         $11,729
 8/31/96                $11,284                         $11,727
 9/30/96                $11,435                         $11,891
10/31/96                $11,522                         $12,025
11/30/96                $11,733                         $12,245
12/31/96                $11,667                         $12,194
 1/31/97                $11,709                         $12,217
 2/28/97                $11,806                         $12,329
 3/31/97                $11,658                         $12,164
 4/30/97                $11,771                         $12,266
 5/31/97                $11,949                         $12,451
 6/30/97                $12,093                         $12,584
 7/31/97                $12,458                         $12,932
 8/31/97                $12,326                         $12,811
 9/30/97                $12,496                         $12,963
</TABLE> 

- --------------------------------------------------------------------------------
  Federal income tax information on distributions: For federal income tax
  purposes, 98.77% of the total dividends paid by the Fund from net investment
  income during the year ended September 30, 1997 is designated as an exempt-
  interest dividend.
- --------------------------------------------------------------------------------
 
                                       3
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

FINANCIAL STATEMENTS

Statement of Assets and Liabilities                                          

<TABLE> 
<CAPTION> 

As of September 30, 1997
<S>                                                                 <C> 
Assets
- --------------------------------------------------------------------------------
Investment in Massachusetts Municipals Portfolio, at
    value (Note 1A) (identified cost, $7,805,761)                   $ 8,181,579
Receivable from Administrator (Note 4)                                   21,530
- --------------------------------------------------------------------------------
Total assets                                                        $ 8,203,109
- --------------------------------------------------------------------------------


Liabilities
- --------------------------------------------------------------------------------
Distributions payable                                               $    17,431
Payable to affiliate for Trustees' fees (Note 4)                             42
Accrued expenses                                                         15,556
- --------------------------------------------------------------------------------
Total liabilities                                                   $    33,029
- --------------------------------------------------------------------------------
Net Assets for 825,783 shares of beneficial
    interest outstanding                                            $ 8,170,080
- --------------------------------------------------------------------------------


Sources of Net Assets
- --------------------------------------------------------------------------------
Paid-in capital                                                     $ 8,631,297
Accumulated net realized loss on investments from
    Portfolio (computed on basis of identified cost)                   (828,180)
Accumulated distributions in excess of net investment
    loss                                                                 (8,855)
Net unrealized appreciation of investments from
    Portfolio (computed on the basis of identified
    cost)                                                               375,818
- --------------------------------------------------------------------------------
Total                                                               $ 8,170,080
- --------------------------------------------------------------------------------


Net Asset Value, Offering and Redemption
Price Per Share
- --------------------------------------------------------------------------------
($8,170,080 / 825,783 shares of
    beneficial interest outstanding)                                $      9.89
- --------------------------------------------------------------------------------
</TABLE> 
<TABLE> 
<CAPTION> 

Statement of Operations

For the Year Ended
September 30, 1997
<S>                                                                 <C> 
Investment Income (Note 1B)
- --------------------------------------------------------------------------------
Interest income allocated from Portfolio                            $   444,213
Expenses allocated from Portfolio                                       (36,651)
- --------------------------------------------------------------------------------
Net investment income from Portfolio                                $   407,562
- --------------------------------------------------------------------------------


Expenses
- --------------------------------------------------------------------------------
Compensation of Trustees not members of the
    Administrator's organization (Note 4)                           $       165
Legal and accounting services                                            13,360
Printing and postage                                                     10,681
Custodian fee                                                             9,399
Transfer and dividend disbursing agent fees                               4,100
Registration fees                                                         1,100
Amortization of organization expenses (Note 1D)                             981
Miscellaneous                                                               900
- --------------------------------------------------------------------------------
Total expenses                                                      $    40,686
- --------------------------------------------------------------------------------

Deduct --
    Allocation of expenses to the Administrator (Note 4)            $    21,530
- --------------------------------------------------------------------------------
Total expense reductions                                            $    21,530
- --------------------------------------------------------------------------------


Net expenses                                                        $    19,156
- --------------------------------------------------------------------------------


Net investment income                                               $   388,406
- --------------------------------------------------------------------------------


Realized and Unrealized
Gain (Loss) from Portfolio
- --------------------------------------------------------------------------------
Net realized gain (loss) --
    Investment transactions (identified cost basis)                 $   102,037
    Financial futures contracts                                         (76,993)
- --------------------------------------------------------------------------------
Net realized gain on investments                                    $    25,044
- --------------------------------------------------------------------------------

Change in unrealized appreciation (depreciation) --
    Investment transactions                                         $   230,094
    Financial futures contracts                                             579
- --------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation)
    of  investments                                                 $   230,673
- --------------------------------------------------------------------------------


Net realized and unrealized gain on investments                     $   255,717
- --------------------------------------------------------------------------------


Net increase in net assets from operations                          $   644,123
- --------------------------------------------------------------------------------
</TABLE> 
                       See notes to financial statements

                                        4
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997 

FINANCIAL STATEMENTS CONT'D 

Statements of Changes in Net Assets

<TABLE> 
<CAPTION> 

Increase (Decrease)                       Year Ended         Year Ended
in Net Assets                             September 30, 1997 September 30, 1996
- --------------------------------------------------------------------------------
<S>                                       <C>                <C> 
From operations --
    Net investment income                        $   388,406        $   387,696
    Net realized gain on investments                  25,044             32,236
    Net change in unrealized appreciation
        of investments                               230,673             28,150
- --------------------------------------------------------------------------------
Net increase in net assets
    from operations                              $   644,123        $   448,082
- --------------------------------------------------------------------------------
Distributions to shareholders (Note 2) --
    From net investment income                   $  (388,406)       $  (387,696)
    In excess of net investment income                (1,308)              (506)
- --------------------------------------------------------------------------------
Total distributions to shareholders              $  (389,714)       $  (388,202)
- --------------------------------------------------------------------------------
Transactions in shares of beneficial 
    interest (Note 3) --
    Proceeds from sale of shares                 $ 1,879,285        $   629,549
    Net asset value of shares issued to 
        shareholders in payment of
        distributions declared                       121,815            101,348
    Cost of shares redeemed                       (1,025,653)        (1,036,510)
- --------------------------------------------------------------------------------
Net increase (decrease) in net assets 
    from Fund share transactions                 $   975,447        $  (305,613)
- --------------------------------------------------------------------------------

Net increase (decrease) in net assets            $ 1,229,856        $  (245,733)
- --------------------------------------------------------------------------------


Net Assets
- --------------------------------------------------------------------------------
At beginning of period                           $ 6,940,224        $ 7,185,957
- --------------------------------------------------------------------------------
At end of period                                 $ 8,170,080        $ 6,940,224
- --------------------------------------------------------------------------------


Accumulated
distributions in excess of
net investment income
included in net assets
- --------------------------------------------------------------------------------
At end of period                                 $    (8,855)       $    (7,547)
- --------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                       5
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997 

FINANCIAL STATEMENTS CONT'D 

Financial Highlights

<TABLE> 
<CAPTION> 

                                                                                   Year Ended September 30,
                                                                -------------------------------------------------------------------
                                                                   1997       1996           1995          1994         1993*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                              <C>         <C>           <C>           <C>          <C> 
Net asset value--Beginning of period                             $ 9.560     $ 9.510       $ 9.220       $10.260      $ 10.000
- -----------------------------------------------------------------------------------------------------------------------------------


Income (loss) from operations
- -----------------------------------------------------------------------------------------------------------------------------------
Net investment income                                            $ 0.530     $ 0.534       $ 0.546       $ 0.548      $  0.141
Net realized and unrealized gain (loss) on investments             0.332       0.051         0.290        (1.026)        0.284
- -----------------------------------------------------------------------------------------------------------------------------------
Total income (loss) from operations                              $ 0.862     $ 0.585       $ 0.836       $(0.478)     $  0.425
- -----------------------------------------------------------------------------------------------------------------------------------


Less distributions
- -----------------------------------------------------------------------------------------------------------------------------------
From net investment income                                       $(0.530)    $(0.534)      $(0.546)      $(0.548)     $ (0.141)
In excess of net investment income                                (0.002)     (0.001)           --        (0.004)       (0.024)
In excess of net realized gain on investments                         --          --            --        (0.010)           --
- -----------------------------------------------------------------------------------------------------------------------------------
Total distributions                                              $(0.532)    $(0.535)      $(0.546)      $(0.562)     $ (0.165)
- -----------------------------------------------------------------------------------------------------------------------------------


Net asset value--End of period                                   $ 9.890     $ 9.560       $ 9.510       $ 9.220      $ 10.260
- -----------------------------------------------------------------------------------------------------------------------------------


Total Return/(1)/                                                   9.28%       6.28%         9.37%        (4.79)%        4.04%
- -----------------------------------------------------------------------------------------------------------------------------------

Ratios/Supplemental Data++
- -----------------------------------------------------------------------------------------------------------------------------------
Net assets, end of period (000 omitted)                          $ 8,170     $ 6,940       $ 7,186       $ 9,338      $  5,063
Ratio of net expenses to average net assets/(2)(3)/                 0.80%       0.76%         0.63%         0.60%         1.21%+
Ratio of net expenses to average net assets after custodian 
    fee reduction/(2)/                                              0.79%       0.75%         0.60%           --            --
Ratio of net investment income to average net assets                5.49%       5.56%         5.93%         5.65%         4.80%+
</TABLE> 

++  The operating expenses of the Fund may reflect an allocation of expenses to
    the Administrator. Had such action not been taken, the ratios and net
    investment income per share would have been as follows:

<TABLE> 
<CAPTION> 

Ratios (As a percentage of average daily net assets):
<S>                                                              <C>         <C>           <C>           <C>            <C>  
    Expenses/(2)(3)/                                                1.10%       0.95%         0.88%         1.12%           --
    Expenses after custodian fee reduction/(2)/                     1.09%       0.94%         0.85%           --            --
    Net investment income                                           5.19%       5.37%         5.68%         5.13%           --
Net investment income per share                                  $ 0.503     $ 0.516       $ 0.523       $ 0.498            --
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

+     Annualized.
*     For the period from the start of business, June 17, 1993, to September 30,
      1993.
/(1)/ Total return is calculated assuming a purchase at the net asset value on
      the first day and a sale at the net asset value on the last day of each
      period reported. Dividends and distributions, if any, are assumed to be
      reinvested at the net asset value on the payable date. Total return is not
      computed on an annualized basis.
/(2)/ Includes the Fund's share of the Portfolio's allocated expenses.
/(3)/ The expense ratios for the years ended September 30, 1995 and periods
      thereafter have been adjusted to reflect a change in reporting
      requirements. The new reporting guidelines require the Fund, as well as
      its Portfolio, to increase its expense ratios by the effect of any expense
      offset arrangements with its service providers. The expense ratios for the
      prior periods have not been adjusted to reflect this change.

                       See notes to financial statements

                                        6
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

NOTES TO FINANCIAL STATEMENTS


1   Significant Accounting Policies
    ----------------------------------------------------------------------------
    Massachusetts Municipal Bond Portfolio (the Fund) is a non-diversified
    series of Eaton Vance Municipals Trust (the Trust). The Trust is an entity
    of the type commonly known as a Massachusetts business trust and is
    registered under the Investment Company Act of 1940, as amended, as an
    open-end, management investment company. The Fund invests all of its
    investable assets in interests in Massachusetts Municipals Portfolio (the
    Portfolio), a New York Trust, having the same investment objective as the
    Fund. The value of the Fund's investment in the Portfolio reflects the
    Fund's proportionate interest in the net assets of the Portfolio (3.2% at
    September 30, 1997). The performance of the Fund is directly affected by the
    performance of the Portfolio. The financial statements of the Portfolio,
    including the portfolio of investments, are included elsewhere in this
    report and should be read in conjunction with the Fund's financial
    statements. The following is a summary of significant accounting policies
    consistently followed by the Fund in the preparation of its financial
    statements. The policies are in conformity with generally accepted
    accounting principles.

    A Investment Valuations -- Valuation of securities by the Portfolio is
    discussed in Note 1A of the Portfolio's Notes to Financial Statements which
    are included elsewhere in this report.

    B Income -- The Fund's net investment income consists of the Fund's pro rata
    share of the net investment income of the Portfolio, less all actual and
    accrued expenses of the Fund determined in accordance with generally
    accepted accounting principles.

    C Federal Taxes -- The Fund's policy is to comply with the provisions of the
    Internal Revenue Code applicable to regulated investment companies and to
    distribute to shareholders each year all of its taxable and tax-exempt
    income, including any net realized gain on investments. Accordingly, no
    provision for Federal income or excise tax is necessary. At September 30,
    1997, the Fund, for Federal income tax purposes, had a capital loss
    carryover of $757,444 which will reduce taxable income arising from future
    net realized gain on investments, if any, to the extent permitted by the
    Internal Revenue Code and thus will reduce the amount of distributions to
    shareholders which would otherwise be necessary to relieve the Fund of any
    liability for federal income or excise tax. Such capital loss carryover will
    expire on September 30, 2004 ($494,027) and September 30, 2003 ($263,417).
    Dividends paid by the Fund from net interest on tax-exempt municipal bonds
    allocated from the Portfolio are not includable by shareholders as gross
    income for Federal income tax purposes because the Fund and the Portfolio
    intend to meet certain requirements of the Internal Revenue Code applicable
    to regulated investment companies which will enable the Fund to pay exempt-
    interest dividends. The portion of such interest, if any, earned on private
    activity bonds issued after August 7, 1986 may be considered a tax
    preference item to shareholders.

    D Deferred Organization Expenses -- Costs incurred by the Fund in connection
    with its organization, including registration costs, are being amortized on
    the straight-line basis over five years.

    E Use of Estimates -- The preparation of financial statements in conformity
    with generally accepted accounting principles requires management to make
    estimates and assumptions that affect the reported amounts of assets and
    liabilities at the date of the financial statements and the reported amounts
    of revenue and expense during the reporting period. Actual results could
    differ from those estimates.

    F Other -- Investment transactions are accounted for on a trade date basis.

    G Expense Reduction -- Investors Bank & Trust Company (IBT) serves as
    custodian to the Fund and the Portfolio. Pursuant to the respective
    custodian agreements, IBT receives a fee reduced by credits which are
    determined based on the average daily cash balances each Portfolio maintains
    with IBT. All significant credit balances used to reduce the Portfolio's
    custodian fees are reflected as a reduction of operating expenses on the
    Statement of Operations.

2   Distributions to Shareholders
    ----------------------------------------------------------------------------
    The net income of the Fund is determined daily and substantially all of the
    net income so determined is declared as a dividend to shareholders of record
    at the time of declaration. Distributions are paid monthly. Distributions of
    allocated realized capital gains, if any, are made at least annually.
    Shareholders may reinvest capital gain distributions in additional shares of
    a Fund at the net asset value as of the ex-dividend date. Distributions are

                                       7
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

NOTES TO FINANCIAL STATEMENTS CONT'D

    paid in the form of additional shares of the Fund or, at the election of the
    shareholder, in cash. The Fund distinguishes between distributions on a tax
    basis and a financial reporting basis. Generally accepted accounting
    principles require that only distributions in excess of tax basis earnings
    and profits be reported in the financial statements as a return of capital.
    Differences in the recognition or classification of income between the
    financial statements and tax earnings and profits which result in temporary
    over distributions for financial statement purposes are classified as
    distributions in excess of net investment income or accumulated net realized
    gains. Permanent differences between book and tax accounting relating to
    distributions are reclassified to paid-in capital. The tax treatment of
    distributions for the calendar year will be reported to shareholders prior
    to February 1, 1998 and will be based on tax accounting methods which may
    differ from amounts determined for financial statement purposes.

3   Shares of Beneficial Interest
    ----------------------------------------------------------------------------
    The Declaration of Trust permits the Trustees to issue an unlimited number
    of full and fractional shares of beneficial interest (without par value).
    Transactions in Fund shares were as follows:

<TABLE> 
<CAPTION> 
                                                  Year Ended September 30, 
                                                  ------------------------ 
                                                    1997            1996   
    ---------------------------------------------------------------------- 
    <S>                                           <C>            <C>       
    Sales                                         193,278          65,889  
    Issued to shareholders electing to                                     
      receive payments of distributions in                                 
      Fund shares                                  12,606          10,560  
                                                                           
    Redemptions                                  (105,834)       (106,480) 
    ---------------------------------------------------------------------- 
                                                                           
    Net increase (decrease)                       100,050         (30,031) 
    ----------------------------------------------------------------------  
</TABLE> 

4   Transactions with Affiliates
    ----------------------------------------------------------------------------
    Eaton Vance Management (EVM) serves as the Administrator of the Fund, but
    receives no compensation. The Portfolio has engaged Boston Management and
    Research (BMR), a subsidiary of EVM to render investment advisory services.
    See Note 2 of the Portfolio's Notes to Financial Statements which are
    included elsewhere in this report. To enhance the net income of the Fund for
    the year ended September 30, 1997, $21,530 of expenses related to the
    operation of the Fund were allocated to EVM. Except as to Trustees of the
    Fund and the Portfolio who are not members of EVM's or BMR's organization,
    officers and Trustees receive remuneration for their services to the Fund
    out of the investment adviser fee earned by BMR.

    Certain officers and Trustees of the Fund and the Portfolio are
    directors/trustees of the above organizations.

5   Investment Transactions
    ----------------------------------------------------------------------------
    Increases and decreases in the Fund's investment in the Portfolio for the
    year ended September 30, 1997 aggregated $1,893,006 and $1,318,410,
    respectively.

                                       8
<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

INDEPENDENT AUDITORS' REPORT


To the Trustees and Shareholders
of Eaton Vance Municipals Trust
- --------------------------------------------------------------------------------
We have audited the accompanying statement of assets and liabilities of
Massachusetts Municipals Bond Portfolio (one of the series constituting Eaton
Vance Municipals Trust) as of September 30, 1997, and the related statement of
operations for year then ended, the statements of changes in net assets for the
years ended September 30, 1997 and 1996 and the financial highlights for each of
the years in the five year period ended September 30, 1997. These financial
statements and financial highlights are the responsibility of the Trust's
management. Our responsibility is to express an opinion on these financial
statements and financial highlights based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of the Massachusetts
Municipal Bond Portfolio at September 30, 1997, and the results of its
operations, the changes in net assets and financial highlights for the
respective stated periods, in conformity with generally accepted accounting
principles.

                             DELOITTE & TOUCHE LLP
                             Boston, Massachusetts
                             November 7, 1997




                                     9    
   

<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

PORTFOLIO OF INVESTMENTS


Tax-Exempt Investments -- 100.0%
                                                                                
<TABLE> 
<CAPTION> 
                                                                                
                                                                                
Ratings (Unaudited)                                                    
- ----------------------- Principal
                        Amount
             Standard   (000
Moody's      & Poor's   omitted)      Security                          Value
- ---------------------------------------------------------------------------------------
<S>          <C>        <C>           <C>                               <C> 
Assisted Living -- 0.7%
- ---------------------------------------------------------------------------------------
 NR          AAA        $  1,500      Massachusetts IFA (Briscoe
                                      House) (FHA), 7.125%, 2/1/36      $     1,709,655
- ---------------------------------------------------------------------------------------
                                                                        $     1,709,655
- ---------------------------------------------------------------------------------------

Education -- 3.6%
- ---------------------------------------------------------------------------------------
 Aa1         AA+        $  1,625      Massachusetts Health and
                                      Educational Facilities
                                      Authority (HEFA) (Amherst
                                      College), 6.80%, 11/1/21          $     1,770,974

 NR          AAA           3,400      Massachusetts HEFA (Merrimack
                                      College), 7.125%, 7/1/12                3,853,934

 A1          A+              250      Massachusetts HEFA (Tufts
                                      University), 7.75%, 8/1/13                262,558

 Baa3        BBB-          1,250      Massachusetts IFA, (Dana
                                      Hall), 5.90%, 7/1/27                    1,274,513

 A1          NR            2,000      New England Educational Loan
                                      Marketing Corp., (AMT),
                                      6.90%, 11/1/09                          2,216,680
- ---------------------------------------------------------------------------------------
                                                                        $     9,378,659
- ---------------------------------------------------------------------------------------

Electric Utilities -- 6.2%
- ---------------------------------------------------------------------------------------
 NR          BBB        $  1,545      Guam Power Authority,
                                      5.25%, 10/1/23                    $     1,475,475

 Baa2        BBB+          5,060      Massachusetts Municipal
                                      Wholesale Electric Co.,    
                                      6.625%, 7/1/18                          5,412,429

 Baa2        BBB+          3,500      Massachusetts Municipal
                                      Wholesale Electric Co., 6.75%,  
                                      7/1/11                                  3,769,570

 Baa1        BBB+          3,000      Puerto Rico Electric Power
                                      Authority, 0%, 7/1/17                   1,061,370

 Baa1        BBB+         13,055      Puerto Rico Electric Power
                                      Authority, 0%, 7/1/17                   4,618,728
- ---------------------------------------------------------------------------------------
                                                                        $    16,337,572
- ---------------------------------------------------------------------------------------

Escrowed / Prerefunded -- 2.0%
- ---------------------------------------------------------------------------------------
 NR          AAA        $ 11,825      Massachusetts General
                                      Obligations Federal Assisted
                                      Housing, Section 8, 0%, 2/1/23    $     2,432,284

 NR          NR            2,400      Massachusetts HEFA (Fairview
                                      Care Facilities), 10.25%,  
                                      1/1/21                                  2,894,424
- ---------------------------------------------------------------------------------------
                                                                        $     5,326,708
- ---------------------------------------------------------------------------------------

General Obligations -- 4.5%
- ---------------------------------------------------------------------------------------
 A1          A+         $  3,400      Commonwealth of Massachusetts,
                                      5.00%, 1/1/12                     $     3,352,060

 NR          BBB             200      Government of Guam,
                                      5.375%, 11/15/13                          197,126

 NR          BBB           2,145      Government of Guam,
                                      5.40%, 11/15/18                         2,105,124

 A1          A+            3,015      Massachusetts Bay Transit
                                      Authority, (MBTA),
                                      5.50%, 3/1/21                           3,020,427

 A1          A+            1,000      Massachusetts Bay Transit
                                      Authority, (MBTA),
                                      5.90%, 3/1/12                           1,052,060

 Aaa         NR            1,700      Town of Nantucket,
                                      6.80%, 12/1/11                          1,896,945

 A1          A+              250      University of Massachusetts
                                      Building Authority,
                                      7.20%, 5/1/04                             285,083
- ---------------------------------------------------------------------------------------
                                                                        $    11,908,825
- ---------------------------------------------------------------------------------------

Hospitals -- 16.4%
- ---------------------------------------------------------------------------------------
 A1          A          $  3,000      Massachusetts HEFA (Charlton
                                      Memorial Hospital),
                                      7.25%, 7/1/13                     $     3,285,480

 Aa2         AA+           2,000      Massachusetts HEFA (Daughters
                                      of Charity Health System),
                                      6.10%, 7/1/14                           2,119,320

 NR          A-            1,020      Massachusetts HEFA (Jordan
                                      Hospital), 6.875%, 10/1/15              1,107,842

 NR          A-            2,870      Massachusetts HEFA (Jordan
                                      Hospital), 6.875%, 10/1/22              3,110,563

 Baa3        BB+           5,500      Massachusetts HEFA (Milford-
                                      Whitinsville Hospital),            
                                      7.75%, 7/15/17                          6,014,635

 Baa1        BBB+          2,000      Massachusetts HEFA (New
                                      England Baptist Hospital),      
                                      7.35%, 7/1/17                           2,162,340

 NR          BBB-          2,600      Massachusetts HEFA (North
                                      Adams Regional Hospital),
                                      6.625%, 7/1/18                          2,733,406

 Baa2        BBB           5,255      Massachusetts HEFA (Sisters of
                                      Providence Health System),
                                      6.50%, 11/15/08                         5,538,770

 Baa2        BBB           2,085      Massachusetts HEFA (Sisters of
                                      Providence Health System),
                                      6.625%, 11/15/22                        2,203,470

 A1          AA-             530      Massachusetts HEFA (Spaulding
                                      Rehabilitation Hospital),
                                      7.625%, 7/1/21                            552,965
</TABLE> 

                       See notes to financial statements

                                      10


<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

PORTFOLIO OF INVESTMENTS CONT'D


<TABLE> 
<CAPTION> 

Ratings (Unaudited) 
- ---------------------   Principal 
                        Amount    
             Standard   (000                                                    
Moody's      & Poor's   omitted)      Security                          Value   
- ----------------------------------------------------------------------------------------
<S>          <C>        <C>           <C>                               <C> 
Hospitals (continued)
- ----------------------------------------------------------------------------------------
 NR          AA         $  1,475      Massachusetts HEFA, (FHA),         
                                      (Deutsches Altenheim),             
                                      7.70%, 11/1/31                    $   1,594,696
                                                                         
 NR          NR            8,000      Massachusetts IFA,                 
                                      0%, 8/1/08                            4,574,640
                                                                         
 NR          NR            9,000      Massachusetts IFA (Biomedical      
                                      Research Corp.), 0%, 8/1/09           4,831,650
                                                                         
 NR          NR            6,000      Massachusetts IFA (Biomedical      
                                      Research Corp.), 0%, 8/1/10           3,018,240
- ----------------------------------------------------------------------------------------
                                                                        $  42,848,017
- ----------------------------------------------------------------------------------------
                                                                         
Housing -- 10.4%                                                         
- ----------------------------------------------------------------------------------------
 NR          AAA        $  2,750      Framingham Housing Authority,      
                                      (GNMA), 6.65%, 2/20/32            $   2,880,323
                                                                         
 A1          A+            5,000      Massachusetts HFA,                 
                                      6.375%, 4/1/21                        5,244,100
                                                                         
 Aa          A+            7,160      Massachusetts HFA, (AMT),          
                                      6.60%, 12/1/26                        7,562,177
                                                                         
 Aa          A+            6,365      Massachusetts HFA, (AMT),          
                                      6.60%, 12/1/26                        6,722,522
                                                                         
 Aa          A+            2,195      Massachusetts HFA, (AMT),          
                                      8.10%, 6/1/20                         2,258,304
                                                                         
 Aa          A+            1,500      Massachusetts HFA, (AMT),          
                                      8.10%, 12/1/21                        1,548,750
                                                                         
 Aaa         AAA           1,000      Massachusetts HFA, (FNMA),         
                                      6.875%, 11/15/11                      1,084,630
- ----------------------------------------------------------------------------------------
                                                                        $  27,300,806
- ----------------------------------------------------------------------------------------
                                                                         
Industrial Development Revenue / Pollution                               
Control Revenue -- 3.6%                                                  
- ----------------------------------------------------------------------------------------
 NR          NR         $  2,075      Massachusetts IFA (Hingham         
                                      Water Co.), (AMT),                 
                                      6.60%, 12/1/15                    $   2,227,865
                                                                         
 NR          NR            3,000      Massachusetts IFA (Hingham         
                                      Water Co.), (AMT),                 
                                      6.90%, 12/1/29                        3,261,060
                                                                         
 Baa3        BBB-          3,750      Puerto Rico Port Authority         
                                      (American Airlines), (AMT),        
                                      6.25%, 6/1/26                         4,013,475
- ----------------------------------------------------------------------------------------
                                                                        $   9,502,400
- ----------------------------------------------------------------------------------------
                                                                         
Insured-Colleges and Universities -- 0.4%                                
- ----------------------------------------------------------------------------------------
 Aaa         AAA        $  1,000      Massachusetts HEFA, (Berklee       
                                      College of Music), (MBIA),         
                                      5.10%, 10/1/27                    $     958,540
- ----------------------------------------------------------------------------------------
                                                                        $     958,540
- ----------------------------------------------------------------------------------------
                                                                         
Insured-Education -- 1.2%                                                
- ----------------------------------------------------------------------------------------
 Aaa         AAA        $  1,950      Massachusetts Educational          
                                      Finance Authority, (AMBAC),        
                                      (AMT), 7.30%, 1/1/12              $   2,109,647
                                                                         
 Aaa         AAA             290      Massachusetts Educational          
                                      Finance Authority, (MBIA),         
                                      (AMT), 7.25%, 1/1/09                    312,095
                                                                         
 Aaa         AAA             400      Massachusetts HEFA (Boston         
                                      University) "RIBS", (MBIA),        
                                      Variable Rate, 10/1/31/(1)/             468,500
                                                                         
 Aaa         AAA             250      Massachusetts HEFA                 
                                      (Northeastern University),         
                                      (AMBAC), 7.50%, 10/1/08                 263,398
- ----------------------------------------------------------------------------------------
                                                                        $   3,153,640
- ----------------------------------------------------------------------------------------
                                                                         
Insured-Electric Utilities -- 0.7%                                       
- ----------------------------------------------------------------------------------------
 Aaa         AAA        $  2,000      Massachusetts Municipal            
                                      Wholesale Electric Co., (MBIA),    
                                      4.75%, 7/1/10                     $   1,940,280
- ----------------------------------------------------------------------------------------
                                                                        $   1,940,280
- ----------------------------------------------------------------------------------------
                                                                         
Insured-General Obligations -- 1.4%                                      
- ----------------------------------------------------------------------------------------
 Aaa         AAA        $  1,795      City of Boston, (FSA),             
                                      4.875%, 9/1/09                    $   1,796,687
                                                                         
 NR          AAA           1,000      Commonwealth of Puerto Rico        
                                      "RIBS" (AMBAC), Variable           
                                      Rate, 7/1/15/(1)/                     1,090,000
                                                                         
 Aaa         AAA             600      Town of Tyngsborough, (AMBAC),     
                                      6.90%, 5/15/08                          669,714
- ----------------------------------------------------------------------------------------
                                                                        $   3,556,401
- ----------------------------------------------------------------------------------------
                                                                         
Insured-Hospitals -- 8.5%                                                
- ----------------------------------------------------------------------------------------
 Aaa         AAA        $    300      Massachusetts HEFA (Berkshire      
                                      Health Systems), (MBIA),           
                                      7.60%, 10/1/14                    $     316,827
</TABLE> 

                       See notes to financial statements

                                      11

<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

PORTFOLIO OF INVESTMENTS CONT'D

<TABLE> 
<CAPTION> 

Ratings (Unaudited) 
- ---------------------   Principal                                               
                        Amount                                                  
             Standard   (000                                                    
Moody's      & Poor's   omitted)      Security                             Value   
- -------------------------------------------------------------------------------------------
<S>          <C>        <C>           <C>                                  <C> 
Insured-Hospitals (continued)                                          
- -------------------------------------------------------------------------------------------
 Aaa         AAA        $  3,750      Massachusetts HEFA (Beth Israel       
                                      Hospital), (AMBAC), (AMT),            
                                      Variable Rate, 7/1/25/(1)/           $   4,082,813
                                                                            
 Aaa         AAA           1,040      Massachusetts HEFA (Beverly           
                                      Hospital), (MBIA),                    
                                      7.30%, 7/1/13                            1,111,708
                                                                            
 Aaa         AAA           1,500      Massachusetts HEFA (Capital Assist    
                                      Program), (MBIA),                     
                                      7.20%, 7/1/09                            1,602,240
                                                                            
 Aaa         AAA           1,885      Massachusetts HEFA (Fallon            
                                      Healthcare System), (FSA),            
                                      6.75%, 6/1/20/(2)/                       2,078,778
                                                                            
 Aaa         AAA           2,000      Massachusetts HEFA (St. Elizabeth     
                                      Hospital Issue) "LEVRRS", (FSA),      
                                      Variable Rate, 8/12/21/(1)/              2,340,000
                                                                            
 Aaa         AAA           2,600      Massachusetts HEFA (St. Luke's        
                                      Hospital) "Yield Curve Notes",        
                                      (MBIA), Variable                      
                                      Rate, 8/15/13/(1)/                       2,756,000
                                                                            
 Aaa         AAA           2,600      Massachusetts HEFA (St. Luke's        
                                      Hospital) "Yield Curve Notes",        
                                      Variable Rate,                        
                                      (MBIA), 8/15/23/(1)/                     2,700,750
                                                                            
 Aaa         AAA           3,000      Massachusetts HEFA (The Medical       
                                      Center of Central Massachusetts)      
                                      (AMBAC), "CARS", Variable             
                                      Rate, 6/23/22/(1)/                       3,618,750
                                                                            
 Aaa         AAA             700      Massachusetts HEFA (University        
                                      Hospital), (MBIA),                    
                                      7.25%, 7/1/19                              763,546
                                                                            
 Aaa         AAA           1,000      Massachusetts HEFA, (Lowell           
                                      General Hospital), Series B, (FSA),   
                                      5.25%, 6/1/16                              983,570
- -------------------------------------------------------------------------------------------
                                                                           $  22,354,982
- -------------------------------------------------------------------------------------------
                                                                            
Insured-Housing -- 0.6%                                                     
- -------------------------------------------------------------------------------------------
 Aaa         AAA        $  1,500      Massachusetts HFA, (AMBAC),           
                                      6.45%, 1/1/36                        $   1,586,565
- -------------------------------------------------------------------------------------------
                                                                           $   1,586,565
- -------------------------------------------------------------------------------------------
                                                                            
Insured-Life Care -- 0.9%                                                   
- -------------------------------------------------------------------------------------------
 Aaa         AAA        $  2,465      Massachusetts HEFA, (Partners         
                                      Healthcare), (MBIA),                  
                                      5.375%, 7/1/17                       $   2,448,485
- -------------------------------------------------------------------------------------------
                                                                           $   2,448,485
- -------------------------------------------------------------------------------------------
                                                                            
Insured-Transportation -- 5.5%                                              
- -------------------------------------------------------------------------------------------
 Aaa         AAA        $  5,860      Massachusetts Port Authority,         
                                      (AMT), (FGIC), 7.50%, 7/1/20         $   6,397,538
                                                                            
 Aaa         NR           26,970      Massachusetts Turnpike Authority, 
                                      (MBIA), 0%, 1/1/28                       5,162,867
                                                                            
 Aaa         NR            2,970      Massachusetts Turnpike Authority, 
                                      (MBIA), 5.00%, 1/1/37                    2,749,775
- -------------------------------------------------------------------------------------------
                                                                           $  14,310,180
- -------------------------------------------------------------------------------------------
                                                                            
Insured-Water and Sewer -- 0.9%                                             
- -------------------------------------------------------------------------------------------
 Aaa         AAA        $  2,500      Massachusetts Water Resources         
                                      Authority, (MBIA),                    
                                      4.75%, 12/1/21                       $   2,266,275
- -------------------------------------------------------------------------------------------
                                                                           $   2,266,275
- -------------------------------------------------------------------------------------------
                                                                            
Lease Revenue / Certificates of Participation -- 3.8%                       
- -------------------------------------------------------------------------------------------
 NR          A-         $  7,800      Plymouth County, MA (Plymouth         
                                      County Correctional Facility),        
                                      7.00%, 4/1/22                        $   8,733,738
                                                                            
 NR          BBB           1,200      Puerto Rico Industrial, Tourist, 
                                      Educational, Medical and 
                                      Environmental Control Authority 
                                      (Guaynabo Municipal Government 
                                      Center Lease), 5.625%, 7/1/22            1,201,320
- -------------------------------------------------------------------------------------------
                                                                           $   9,935,058
- -------------------------------------------------------------------------------------------
                                                                            
Life Care -- 0.8%                                                           
- -------------------------------------------------------------------------------------------
 NR          AAA        $  2,000      Boston, MA, Industrial                
                                      Development Financing Authority, 
                                      6.00%, 2/1/37                        $   2,056,140
- -------------------------------------------------------------------------------------------
                                                                           $   2,056,140
- -------------------------------------------------------------------------------------------
                                                                            
Nursing Homes -- 1.3%                                                       
- -------------------------------------------------------------------------------------------
 NR          NR         $  3,225      Massachusetts IFA (Age Institute 
                                      of Massachusetts),          
                                      8.05%, 11/1/25                       $   3,405,439
- -------------------------------------------------------------------------------------------
                                                                           $   3,405,439
- -------------------------------------------------------------------------------------------
                                                                            
Solid Waste -- 0.5%                                                         
- -------------------------------------------------------------------------------------------
 NR          NR         $  1,145      City of Pittsfield, Vicon Recovery 
                                      Associates, 7.95%, 11/1/04           $   1,193,285
- -------------------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                      12
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

PORTFOLIO OF INVESTMENTS CONT'D

<TABLE> 
<CAPTION> 
Ratings (Unaudited)
- ---------------------   Principal
                        Amount
             Standard   (000
Moody's      & Poor's   omitted)      Security                          Value
- --------------------------------------------------------------------------------------
<S>          <C>        <C>           <C>                               <C> 
Solid Waste (continued)
- --------------------------------------------------------------------------------------
                                                                        $  1,193,285
- --------------------------------------------------------------------------------------
                                                                        
Special Tax Revenue -- 3.5%                                              
- --------------------------------------------------------------------------------------
 Baa1        A          $ 3,300       Commonwealth of Puerto Rico        
                                      Highway and Transportation         
                                      Authority, 5.00%, 7/1/36          $  3,081,243
                                                                         
 Aa3         AA           3,500       State of Massachusetts,            
                                      5.00%, 6/1/17                        3,372,425
                                                                         
 NR          NR           2,350       Virgin Islands Public Finance      
                                      Authority, 7.25%, 10/1/18            2,624,856
- --------------------------------------------------------------------------------------
                                                                        $  9,078,524
- --------------------------------------------------------------------------------------
                                                                         
Transportation -- 12.0%                                                  
- --------------------------------------------------------------------------------------
 NR          BBB        $ 5,950       Guam Airport Authority, (AMT),     
                                      6.70%, 10/1/23                    $  6,450,871
                                                                         
 Aa3         AA-          3,000       Massachusetts Port Authority,      
                                      (AMT), 5.375%, 7/1/27                2,915,190
                                                                         
 A1          NR          22,535       Massachusetts Turnpike             
                                      Authority, 5.00%, 1/1/20            22,059,285
- --------------------------------------------------------------------------------------
                                                                        $ 31,425,346
- --------------------------------------------------------------------------------------
                                                                         
Water and Sewer -- 10.6%                                                 
- --------------------------------------------------------------------------------------
 Baa1        BBB        $12,185       City of Boston (Harbor Electric    
                                      Energy Co.), (AMT),                
                                      7.375%, 5/15/15                   $ 13,281,283
                                                                         
 A2          A            7,175       Massachusetts Water Resources      
                                      Authority, 5.00%, 3/1/22             6,704,894
                                                                         
 A2          A            1,500       Massachusetts Water Resources      
                                      Authority, 5.25%, 3/1/13             1,495,230
                                                                         
 A2          A            4,165       Massachusetts Water Resources      
                                      Authority, 5.25%, 12/1/15            4,174,371
                                                                         
 NR          NR           2,000       Virgin Islands Water and Power     
                                      Authority, 7.60%, 1/1/12             2,238,140
- --------------------------------------------------------------------------------------
                                                                        $ 27,893,918
- --------------------------------------------------------------------------------------
                                                                         
Total Tax-Exempt Investments -- 100.0%                                   
     (identified cost $238,584,146)                                     $261,875,700
- --------------------------------------------------------------------------------------
</TABLE> 

AMT - Interest earned from these securities may be considered a tax preference
  item for purposes of the Federal Alternative Minimum Tax.

The portfolio invests primarily in debt securities issued by Massachusetts
municipalities. The ability of the issuers of the debt securities to meet their
obligations may be affected by the economic developments in a specific industry
or municipality. In order to reduce the risk associated with such economic
developments, at September 30, 1997, 20.1% of the securities in the portfolio of
investments are backed by bond insurance of various financial institutions and
financial guaranty assurance agencies. The aggregate percentage insured by
financial institutions ranged from 2.4% to 9.8% of total investments.

/(1)/ Security has been issued as an inverse floater bond.
/(2)/ Security (or a portion thereof) has been segregated to cover margin
      requirements on open financial futures contracts.

                       See notes to financial statements

                                      13
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

FINANCIAL STATEMENTS

Statement of Assets and Liabilities                            

<TABLE> 
<CAPTION> 

As of September 30, 1997
Assets
- ------------------------------------------------------------------------------
<S>                                                              <C> 
Investments, at value (Note 1A)
   (identified cost basis $238,584,146)                          $261,875,700
Cash                                                                1,204,933
Interest receivable                                                 4,168,799
Receivable for daily variation margin
   on open financial futures contracts (Note 1E)                       26,125
Deferred organization expenses (Note 1D)                                2,001
- ------------------------------------------------------------------------------
Total assets                                                     $267,277,558
- ------------------------------------------------------------------------------

Liabilities
- ------------------------------------------------------------------------------
Payable for investments purchased                                $ 13,594,370
Payable to affiliate for Trustees' fees (Note 2)                        3,867
Accrued expenses                                                        4,560
- ------------------------------------------------------------------------------
Total liabilities                                                $ 13,602,797
- ------------------------------------------------------------------------------
Net Assets applicable to investors' interest in Portfolio        $253,674,761
- ------------------------------------------------------------------------------

Sources of Net Assets
- ------------------------------------------------------------------------------
Net proceeds from capital contributions and withdrawals          $230,616,384

Net unrealized appreciation of investments and financial
  futures contracts (computed on basis of identified cost)         23,058,377
- ------------------------------------------------------------------------------
Total                                                            $253,674,761
- ------------------------------------------------------------------------------

<CAPTION> 

Statement of Operations

For the Year Ended September 30, 1997
Investment Income (Note 1B)
- ------------------------------------------------------------------------------
<S>                                                              <C> 
Interest income                                                  $ 16,713,453
- ------------------------------------------------------------------------------
Total income                                                     $ 16,713,453
- ------------------------------------------------------------------------------

Expenses
- ------------------------------------------------------------------------------
Investment adviser fee (Note 2)                                  $  1,203,548
Compensation of Trustees not members of the Investment
  Adviser's organization (Note 2)                                      15,444
Custodian fee (Note 1J)                                               135,200
Legal and accounting services                                          30,911
Amortization of organization expenses (Note 1D)                         5,208
Miscellaneous                                                          42,327
- ------------------------------------------------------------------------------
Total expenses                                                   $  1,432,638
- ------------------------------------------------------------------------------
Less Allocations--
   Reduction of custodian fee (Note 1J)                          $     38,619
- ------------------------------------------------------------------------------
Total expense reductions                                         $     38,619
- ------------------------------------------------------------------------------

Net expenses                                                     $  1,394,019
- ------------------------------------------------------------------------------

Net investment income                                            $ 15,319,434
- ------------------------------------------------------------------------------

Realized and Unrealized Gain (Loss) on Investments
- ------------------------------------------------------------------------------
Net realized gain (loss)--
   Investment transactions (identified cost basis)               $  5,018,545
   Financial futures contracts                                     (2,898,402)
- ------------------------------------------------------------------------------
Net realized gain on investments                                 $  2,120,143
- ------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation)--
   Investments (identified cost basis)                           $  6,730,261
   Financial futures contracts                                         75,551
- ------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation)
  of investments                                                 $  6,805,812
- ------------------------------------------------------------------------------

Net realized and unrealized gain on investments                  $  8,925,955
- ------------------------------------------------------------------------------

Net increase in net assets from operations                       $ 24,245,389
- ------------------------------------------------------------------------------
</TABLE> 



                       See notes to financial statements

                                       14

<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997 

FINANCIAL STATEMENTS CONT'D 

Statements of Changes in Net Assets
<TABLE> 
<CAPTION> 
Increase (Decrease)                         Year Ended          Year Ended
in Net Assets                               September 30, 1997  September 30, 1996
- -----------------------------------------------------------------------------------
<S>                                         <C>                 <C>   
From operations --
   Net investment income                          $ 15,319,434        $ 16,966,016
   Net realized gain on investments                  2,120,143           3,096,278
   Net change in unrealized appreciation
      (depreciation) of investments                  6,805,812          (1,167,330)
- -----------------------------------------------------------------------------------
Net increase in net assets from operations        $ 24,245,389        $ 18,894,964
- -----------------------------------------------------------------------------------
Capital transactions --
   Contributions                                  $ 12,526,247        $ 16,336,133
   Withdrawals                                     (64,226,111)        (56,272,108)
- -----------------------------------------------------------------------------------
Net decrease in net assets resulting from
   capital transactions                           $(51,699,864)       $(39,935,975)
- -----------------------------------------------------------------------------------

Total decrease in net assets                      $(27,454,475)       $(21,041,011)
- -----------------------------------------------------------------------------------


Net Assets
- -----------------------------------------------------------------------------------
At beginning of period                            $281,129,236        $302,170,247
- -----------------------------------------------------------------------------------
At end of period                                  $253,674,761        $281,129,236
- -----------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                       15
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

FINANCIAL STATEMENTS CONT'D

Supplementary Data

<TABLE> 
<CAPTION> 
                                                                               Year Ended September 30,
                                                           --------------------------------------------------------------
                                                             1997           1996        1995       1994        1993*
- -------------------------------------------------------------------------------------------------------------------------

Ratios to average daily net assets
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                      <C>            <C>         <C>        <C>         <C> 
Net Expenses/(1)/                                            0.54%          0.55%       0.56%      0.51%       0.49%+
Net expenses, after custodian fee reduction                  0.52%          0.54%       0.53%        --          --
Net investment income                                        5.75%          5.77%       6.00%      5.74%       5.72%+
Portfolio Turnover                                             35%            51%         87%        53%         38%
- -------------------------------------------------------------------------------------------------------------------------
Net assets, end of period (000s omitted)                 $253,675       $281,129    $302,170   $308,540    $290,613
- -------------------------------------------------------------------------------------------------------------------------
</TABLE> 

+     Annualized.
*     For the period from the start of business, February 1, 1993 to September
      30, 1993.
/(1)/ The expense ratios for the year ended September 30, 1995 and periods
      thereafter have been adjusted to reflect a change in reporting
      requirements. The new reporting guidelines require the Portfolio to
      increase its expense ratio by the effect of any expense offset
      arrangements with its service providers. The expense ratios for the prior
      periods have not been adjusted to reflect this change.


                       See notes to financial statements

                                      16
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

NOTES TO FINANCIAL STATEMENTS 


1 Significant Accounting Policies
  ------------------------------------------------------------------------------
  Massachusetts Municipals Portfolio (the Portfolio) is registered under the
  Investment Company Act of 1940 as a non-diversified, open-end management
  investment company which was organized as a trust under the laws of the State
  of New York on May 1, 1992. The Declaration of Trust permits the Trustees to
  issue interests in the Portfolio. The following is a summary of significant
  accounting policies consistently followed by the Portfolio in the preparation
  of its financial statements. The policies are in conformity with generally
  accepted accounting principles.

  A Investment Valuations -- Municipal bonds are normally valued on the basis of
  valuations furnished by a pricing service. Taxable obligations, if any, for
  which price quotations are readily available are normally valued at the mean
  between the latest bid and asked prices. Futures contracts and options on
  futures contracts listed on commodity exchanges are valued at closing
  settlement prices. Options on futures contracts which are traded over the
  counter are valued at the mean between the latest bid and asked prices.
  Short-term obligations, maturing in sixty days or less, are valued at
  amortized cost, which approximates value. Investments for which valuations or
  market quotations are unavailable are valued at fair market value using
  methods determined in good faith by or at the direction of the Trustees.

  B Income -- Interest income is determined on the basis of interest accrued,
  adjusted for amortization of premium or discount when required for Federal
  income tax purposes.

  C Income Taxes -- The Portfolio has elected to be treated as a partnership for
  Federal tax purposes. No provision is made by the Portfolio for Federal or
  state taxes on any taxable income of the Portfolio because each investor in
  the Portfolio is ultimately responsible for the payment of any taxes on its
  share of such income. Since some of the Portfolio's investors are regulated
  investment companies that invest all or substantially all of their assets in
  the Portfolio, the Portfolio normally must satisfy the applicable source of
  income and diversification requirements (under the Internal Revenue Code) in
  order for its investors to satisfy them. The Portfolio will allocate, at least
  annually among its investors, each investor's distributive share of the
  Portfolio's net taxable (if any) and tax-exempt investment income, net
  realized capital gains, and any other items of income, gain, loss, deduction
  or credit. Interest income received by the Portfolio on investments in
  municipal bonds which is excludable from gross income under the Internal
  Revenue Code, will retain its status as income exempt from Federal income tax
  when allocated to the Portfolio's investors. The portion of such interest, if
  any, earned on private activity bonds issued after August 7, 1986, may be
  considered a tax preference item for investors.

  D Deferred Organization Expenses -- Costs incurred by the Portfolio in
  connection with its organization are being amortized on the straight-line
  basis over five years.


  E Financial Futures Contracts -- Upon the entering of a financial futures
  contract, the Portfolio is required to deposit ("initial margin") either in
  cash or securities an amount equal to a certain percentage of the purchase
  price indicated in the financial futures contract. Subsequent payments are
  made or received by the Portfolio ("margin maintenance") each day, dependent
  on the daily fluctuations in the value of the underlying security, and are
  recorded for book purposes as unrealized gains or losses by the Portfolio. The
  Portfolio's investment in financial futures contracts is designed only to
  hedge against anticipated future changes in interest rates. Should interest
  rates move unexpectedly, the Portfolio may not achieve the anticipated
  benefits of the financial futures contracts and may realize a loss.

  F Options on Financial Futures Contracts -- Upon the purchase of a put option
  on a financial futures contract by the Portfolio, the premium paid is recorded
  as an investment, the value of which is marked-to-market daily. When a
  purchased option expires, the Portfolio will realize a loss in the amount of
  the cost of the option. When the Portfolio enters into a closing sales
  transaction, the Portfolio will realize a gain or loss depending on whether
  the sales proceeds from the closing sale transaction are greater or less than
  the cost of the option. When the Portfolio exercises a put option, settlement
  is made in cash. The risk associated with purchasing options is limited to the
  premium originally paid.

  G When-issued and Delayed Delivery Transactions -- The Portfolio may engage in
  when-issued and delayed delivery transactions. The Portfolio records
  when-issued securities on trade date and maintains security positions such
  that sufficient liquid assets will be available to make payments for the
  securities purchased. Securities purchased on a when-issued or delayed
  delivery basis are marked-to-market daily and begin earning interest on
  settlement date.

  H Use of Estimates -- The preparation of the financial statements in
  conformity with generally accepted accounting principles requires management
  to make estimates and assumptions that affect the reported amounts

                                       17
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

NOTES TO FINANCIAL STATEMENTS CONT'D


  of assets and liabilities at the date of the financial statements and the
  reported amounts of revenue and expense during the reporting period. Actual
  results could differ from those estimates.

  I Other -- Investment transactions are accounted for on a trade date basis.

  J Expense Reduction -- Investors Bank & Trust Company (IBT) serves as
  custodian of the Portfolio. Pursuant to the custodian agreement, IBT receives
  a fee reduced by credits which are determined based on the average daily cash
  balance the Portfolio maintains with IBT. All significant credit balances used
  to reduce the Portfolio's custodian fees are reflected as a reduction of
  operating expense on the Statement of Operations.


2 Investment Adviser Fee and Other Transactions with Affiliates
  ------------------------------------------------------------------------------

  The investment adviser fee is earned by Boston Management and Research (BMR),
  a wholly-owned subsidiary of Eaton Vance Management (EVM), as compensation for
  management and investment advisory services rendered to the Portfolio. The fee
  is based upon a percentage of average daily net assets plus a percentage of
  gross income (i.e., income other than gains from the sale of securities). For
  the year ended September 30, 1997, the fee was equivalent to 0.45%
  (annualized) of the Portfolio's average net assets and amounted to $1,203,548.
  Except as to Trustees of the Portfolio who are not members of EVM's or BMR's
  organization, officers and Trustees receive remuneration for their services to
  the Portfolio out of such investment adviser fee.

  Trustees of the Portfolio that are not affiliated with the Investment Adviser
  may elect to defer receipt of all or a portion of their annual fees in
  accordance with the terms of the Trustees Deferred Compensation Plan. For the
  year ended September 30, 1997, no significant amounts have been deferred.

  Certain of the officers and Trustees of the Portfolio are officers and
  directors/trustees of the above organizations.

3 Investments
  ------------------------------------------------------------------------------
  For the year ended September 30, 1997, purchases and sales of investments,
  other than U.S. Government securities, purchased option transactions, and
  short-term obligations, aggregated $91,051,927 and $118,236,663, respectively.

4 Federal Income Tax Basis of Investments
  ------------------------------------------------------------------------------
  The cost and unrealized appreciation/depreciation in value of the investments
  owned by the Portfolio at September 30, 1997, as computed on a federal income
  tax basis, were as follows:

<TABLE> 
<CAPTION> 

  <S>                                                           <C> 
  Aggregate cost                                                $ 238,584,146
  ------------------------------------------------------------------------------
  Gross unrealized appreciation                                 $  23,368,596
  Gross unrealized depreciation                                       (77,042)
  ------------------------------------------------------------------------------
  Net unrealized appreciation                                   $  23,291,554
  ------------------------------------------------------------------------------
</TABLE> 

5 Line of Credit
  ------------------------------------------------------------------------------
  The Portfolio participates with other portfolios and funds managed by BMR and
  EVM and its affiliates in a $120 million unsecured line of credit agreement
  with a group of banks. The Portfolio may temporarily borrow from the line of
  credit to satisfy redemption requests or settle investment transactions.
  Interest is charged to each portfolio or fund based on its borrowings at an
  amount above the banks' adjusted certificate of deposit rate, eurodollar rate
  or federal funds rate. In addition, a fee computed at an annual rate of 0.15%
  on the daily unused portion of the line of credit is allocated among the
  participating portfolios and funds at the end of each quarter. The Portfolio
  did not have any significant borrowings or allocated fees during the year
  ended September 30, 1997.

6 Financial Instruments
  ------------------------------------------------------------------------------
  The Portfolio regularly trades in financial instruments with off-balance sheet
  risk in the normal course of its investing activities to assist in managing
  exposure to various market risks. These financial instruments include futures
  contracts and may involve, to a varying degree, elements of risk in excess of
  the amounts recognized for financial statement purposes.

  The notional or contractual amounts of these instruments represent the
  investment the Portfolio has in particular classes of financial instruments
  and does not necessarily represent the amounts potentially subject to risk.
  The measurement of the risks associated with these instruments is meaningful
  only when all related and offsetting transactions are considered.

                                       18
<PAGE>
 
Massachusetts Municipals Portfolio as of September 30, 1997

NOTES TO FINANCIAL STATEMENTS CONT'D


A summary of obligations under these financial instruments at September 30,
1997, is as follows:
<TABLE> 
<CAPTION> 

Futures
Contracts                                         Net         
Expiration                                        Unrealized   
Date         Contracts                Position    Depreciation
- ---------------------------------------------------------------
<S>          <C>                      <C>           <C> 
12/97        76 U.S. Treasury Bonds   Short         $(233,177)
- ---------------------------------------------------------------
</TABLE> 

At September 30, 1997, the Portfolio had sufficient cash and/or securities to
cover margin requirements on open futures contracts.

                                       19
<PAGE>
 
EV Massachusetts Municipals Portfolio as of September 30, 1997

INDEPENDENT AUDITORS' REPORT



To the Trustees and Investors 
of Massachusetts Municipals Portfolio
- --------------------------------------------------------------------------------
We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of Massachusetts Municipals Portfolio as of
September 30, 1997, the related statement of operations for year then ended, the
statements of changes in net assets for the years ended September 30, 1997 and
1996 and the supplementary data for each of the four years in the period ended
September 30, 1997 and for the period from the start of business, February 1,
1993, to September 30, 1993. These financial statements and supplementary data
are the responsibility of the Trust's management. Our responsibility is to
express an opinion on these financial statements and supplementary data based on
our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and supplementary
data are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities held as of
September 30, 1997 by correspondence with the custodian and brokers; where
replies were not received from brokers, we performed other audit procedures. An
audit also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion. 

In our opinion, such financial statements and supplementary data present fairly,
in all material respects, the financial position of the Portfolio at September
30, 1997, and the results of its operations, the changes in net assets and
supplementary data for the respective stated periods, in conformity with
generally accepted accounting principles.

                                                         DELOITTE & TOUCHE LLP
                                                         Boston, Massachusetts
                                                         November 7, 1997


                                      20


<PAGE>
 
Massachusetts Municipal Bond Portfolio as of September 30, 1997

INVESTMENT MANAGEMENT

<TABLE> 
<CAPTION> 
Massachusetts Municipal Bond Portfolio
                    <S>                               <C> 
                    Officers                          Independent Trustees 
                    Thomas J. Fetter                  Donald R. Dwight                        
                    President                         President, Dwight Partners, Inc.        
                                                      Chairman, Newspapers of New England, Inc.
                    James B. Hawkes          
                    Vice President and Trustee        Samuel L. Hayes, III                      
                                                      Jacob H. Schiff Professor of Investment   
                    Robert B. MacIntosh               Banking, Harvard University Graduate School
                    Vice President                    of Business Administration                 
                                             
                    James L. O'Connor                 Norton H. Reamer                   
                    Treasurer                         President and Director, United Asset
                                                      Management Corporation              
                    Alan R. Dynner           
                    Secretary                         John L. Thorndike                               
                                                      Formerly Director, Fiduciary Company Incorporated
                                                                                                      
                                                      Jack L. Treynor                                 
                                                      Investment Adviser and Consultant                

<CAPTION> 

Massachusetts Municipals Portfolio
                    <S>                               <C> 
                    Officers                          Independent Trustees                     
                    Thomas J. Fetter                  Donald R. Dwight                         
                    President                         President, Dwight Partners, Inc.         
                                                      Chairman, Newspapers of New England, Inc. 
                    James B. Hawkes           
                    Vice President and Trustee        Samuel L. Hayes, III                         
                                                      Jacob H. Schiff Professor of Investment      
                    Robert B. MacIntosh               Banking, Harvard University Graduate School of
                    Vice President and                Business Administration                       
                    Portfolio Manager         
                                                      Norton H. Reamer                   
                    James L. O'Connor                 President and Director, United Asset
                    Treasurer                         Management Corporation              
                                              
                    Alan R. Dynner                    John L. Thorndike                                
                    Secretary                         Formerly Director, Fiduciary Company Incorporated 
           
                                                      Jack L. Treynor                  
                                                      Investment Adviser and Consultant 
</TABLE> 


                                       21
<PAGE>
 
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<PAGE>
 
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<PAGE>
 

Portfolio Investment Advisor
Boston Management and Research 
24 Federal Street
Boston, MA 02110


Fund Administrator
Eaton Vance Management
24 Federal Street
Boston, MA 02110


Principal Underwriter
Eaton Vance Distributors, Inc.
24 Federal Street
Boston, MA 02110
(617) 482-8260


Custodian 
Investors Bank & Trust Company
200 Clarendon Street
Boston, MA 02116


Transfer Agent 
First Data Investor Services Group, Inc.
Attention: Eaton Vance Funds
P.O. Box 5123
Westborough, MA 01581-5123


Independent Auditors
Deloitte & Touche LLP
125 Summer Street 
Boston, MA 02110




Eaton Vance Municipals Trust
24 Federal Street
Boston, MA 02110



- --------------------------------------------------------------------------------
    This report must be preceded or accompanied by a current prospectus which 
contains more complete information on the Fund, including its sales charges and 
expenses.  Please read the prospectus carefully before you invest or send money.
- --------------------------------------------------------------------------------
                                                                    MMBSRC-12/97


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