EATON VANCE INVESTMENT TRUST
N-30D, 1998-05-26
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<PAGE>
 
       Investing                                                                
       For the                                                                  
       21st
       Century






     Annual Report March 31, 1998                      [PICTURE OF EDUCATION 
                                                       SIGN ON STONE WALL
                                                       APPEARS HERE]

[PICTURE OF BLURRED                   EV
CARS ON HIGHWAY
APPEARS HERE]                     TRADITIONAL

                                   NATIONAL

                               LIMITED MATURITY

                                MUNICIPALS FUND

                                  Eaton Vance
                     Global Management-Global Distribution


[PICTURE OF TOP ARCH OF BRIDGE
APPEARS HERE]

                                  Traditional


<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

LETTER TO SHAREHOLDERS


[PHOTO BOX APPEARS HERE]


EV Traditional National Limited Maturity Municipals Fund had a total return of
10.0% for the year ended March 31, 1998./1/ That return was the result of a rise
in net asset value per share from $9.75 on March 31, 1997 to $10.21 on March 31,
1998, and the reinvestment of $0.49 in dividends. /2/ By comparison, the average
return of the 140 funds in the Intermediate Municipal Debt category, as compiled
by Lipper Analytical Services, Inc.-- a nationally recognized monitor of mutual
fund performance -- was 8.2% for the same period./3/

Amid volatile global markets,
more investors were drawn
to municipal bonds...

The past year has been very good for municipal bonds. Against a backdrop of
moderate economic growth and low inflation, investors again focused on the
unique features of municipals, which are among the last remaining tax-advantaged
vehicles. In addition, the municipal market attracted an increasing number of
crossover investors from other markets. Many investors bought municipals in a
flight to quality as the domestic equity market reached overvalued levels and
emerging markets were caught up in the turmoil of the Asian currency crisis.

A sound economy has resulted in 
improving municipal credits...

The upbeat economic climate of recent years has provided strong support for the
municipal market. Steady job growth has generated increased tax revenues for
state and local issuers. As a result, many areas hard-hit in the recessions of
the 1970s and 1980s have made a significant economic comeback, a fact reflected
in the value of their bonds. We expect to see many more such stories emerge in
the coming year.

The municipal market continues to 
offer opportunities for 
tax-conscious investors...

At present, there is little sign of inflation on the horizon and the federal
budget situation has improved dramatically. Naturally, those conditions are
subject to change over time, and we will continue to closely monitor economic
progress. As for the tax-exempt market, we believe that municipals will continue
to serve their traditional function of financing vital public works, while
offering good opportunities for tax-conscious investors.


                             Sincerely,


                             /s/ Thomas J. Fetter

                             Thomas J. Fetter
                             President
                             May 8, 1998


- --------------------------------------------------------------------------------

Fund Information
as of March 31, 1998


Performance/4/ -
- --------------------------------------------------------------------------------

Average Annual Total Returns  (at net asset value)
- --------------------------------------------------------------------------------
One year                             10.0%
Life of Fund (6/3/94)                 5.9




SEC Average Annual Total Returns (including 2.25% sales charge)
- --------------------------------------------------------------------------------
One year                              7.5%
Life of Fund (6/3/94)                 5.3



[BAR GRAPH APPEARS HERE]


Five Largest Sector Weightings/5/
- --------------------------------------------------------------------------------

Industrial Development Bonds            18.1%
General Obligations                     11.7%
Nursing Homes                           11.7%
Escrowed/Prerefunded                    10.7%
Hospitals                               10.0%




/1/ This return does not include the Fund's 2.25% maximum sales charge. 
/2/ A portion of the Fund's income may be subject to federal income and/or
alternative minimum tax and state income tax. /3/ It is not possible to invest
directly in an Average or Index. /4/ Returns are calculated by determining the
percentage change in net asset value with all distributions reinvested. SEC
returns reflect sales charge as noted. /5/ Five largest sector weightings
account for 62.2% of the portfolio's investments, determined by dividing the
total market value of the holdings by the total investments of the portfolio.
Holdings are subject to change.

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.




                                       2
<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

MANAGEMENT DISCUSSION


[PHOTO OF WILLIAM H. AHERN, APPEARS HERE]

William H. Ahern,
Portfolio Manager

An interview with
William H. Ahern,
portfolio manager of
National Limited Maturity Portfolio.

Q: Bill, how would you characterize the intermediate-term municipal bond market
in the past year?

A: The intermediate-term market registered a good showing. As a measure of that
performance, the Lehman Brothers 7-year Municipal Bond Index rose 9.0% in the
year ended March 31./1/ Continued low inflation and manageable economic growth
provided a favorable backdrop for bonds in general. The municipal market did
slightly underperform the Treasury market due to a rise in municipal supply.
According to the Bond Market Association, municipal issuance rose to more than
$220 billion in 1997 alone, up from around $190 billion the previous year.

Because intermediate-term maturities tend to be less volatile than longer-term
maturities, the sector predictably lagged the longer-term end of the market.
But, more importantly, intermediate bonds performed according to expectations.
Overall, the intermediate market fared very well.

Q: The Fund finished its fiscal year near the top of its competitive universe,
according to Lipper Analytical Services, Inc., a nationally recognized monitor
of mutual fund performance./2/ What accounted for the Fund's excellent
performance? 

A: The Fund was helped by several factors. First, given our positive market view
and favorable outlook on inflation, the Fund maintained a slightly longer
average maturity. That helped the Fund participate fully in the market rally.

Second, several bonds purchased in previous periods were escrowed during the
fiscal year. Escrowed bonds are those that have been advance-refunded by their
issuers and are backed by Treasury bonds, making them the highest quality. When
a bond is escrowed, its credit quality is inevitably enhanced. The market
subsequently places a higher value on these bonds because they no longer have
credit risk.

Finally, the Fund benefited from its investments in non-rated bonds. With the
ongoing compression of quality spreads in recent years, non-rated bonds have
performed very well. The Portfolio has increased its efforts to find value in
that segment of the market.


- --------------------------------------------------------------------------------
Portfolio Quality Ratings/3/
- --------------------------------------------------------------------------------

[PIE CHART APPEARS HERE]

Non-Rated            42.3%
Ba                    4.3%
Baa                  22.8%
A                    12.7%
Aa                    6.2%
Aaa                  11.7%


Portfolio Overview/3/
- --------------------------------------------------------------------------------

Number of Issues                            76

Average Rating                              A-

Average Coupon                              6.45%

Average Effective Maturity                  8.69 years

Average Maturity                            12.73 years

Average Duration                            5.79 years



/1/ It is not possible to invest directly in an Index or Average.

/2/ Lipper rankings are based on total return and do not take sales charges into
    consideration. In Lipper's Intermediate Municipal Debt category as of
    3/31/98, EV Traditional National Limited Maturity Fund ranked #8 out of 140
    funds for 1 year.

/3/ Because the Portfolio is actively managed, Quality Ratings and Portfolio
    Overview are subject to change.


- --------------------------------------------------------------------------------
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.
- --------------------------------------------------------------------------------

                                       3
<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

MANAGEMENT DISCUSSION CONT'D



Q: Where did you concentrate the Portfolio's largest investments?

A: The Portfolio was well-diversified across the municipal bond spectrum.
Industrial development bonds (IDB) constituted the largest sector weighting. A
robust economy provided strong support for the projects underlying most IDB
bonds. Elsewhere, nursing homes represented another large focus. As part of a
broader, continuing care sector, many non-rated nursing home bonds have fared
well as quality spreads have narrowed and the sector has taken on increasing
importance within the overall health care system. Finally, general obligations
also provided good performance. As the economy has generated higher tax
revenues, the finances of state and local issuers have improved dramatically.
The performance of general obligations have reflected that improvement.

Q: In what kind of industrial development projects did the Portfolio invest?

A: Typically, IDB projects are tied to commercial activity, and involve the
construction of facilities for resource recovery, solid waste disposal, energy
cogeneration, transportation, or port facilities. The Portfolio's IDB
investments ranged from paper companies such as International Paper Co.,
industrial manufacturers like Owens-Corning Fiberglass, and transportation
companies like Holt Hauling.

The bonds are attractive to investors because they often provide above-average
income while developing commercial interests that will generate further tax
revenues for communities. In addition, the bonds often finance projects that
contribute to cleaner water or air, and thus benefit these communities
environmentally.

Q: You indicated that nursing homes and life care facilities have played a
larger part in the Portfolio. Why have you found them attractive investments? 

A: From a total health care standpoint, these facilities are playing an
increasingly critical role. That is especially important in a rapidly aging
population. Continuing care facilities have been shown to be cost-effective and
more desirable alternatives for older patients, providing a wide range of
medical services while giving senior citizens a large measure of independence.

From an investment standpoint, we have devoted a good deal of our municipal
resources at Eaton Vance toward this sector. The projects are typically financed
by non-rated bonds, which, because of their higher coupons and the potential for
credit improvement, provide unusual opportunities for the Portfolio.

Your Investment at Work
- --------------------------------------------------------------------------------
   Pennsylvania EDA
   Resource Recovery                          [GRAPHIC OF BUILDING APPEARS HERE]
   Culver Project

 .  These bonds were issued to finance the development of a 102-megawatt,
   waste-coal-fired, power production facility.

 .  The project will generate electricity through the use of 552,000 tons per
   year of bituminous coal refuse left over from decades of coal mining in the
   region. The project is popular because it uses waste products to provide
   energy for the surrounding populations.

 .  This bond, rated BBB- by S&P, represents the efforts of the Portfolio to add
   value through lower-rated, investment-grade bonds that may have further
   upgrade potential.


                                       4
<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

Management Discussion Cont'd


Q: You suggested that the intermediate range of the municipal market performed
according to expectations during the past fiscal year. Why is that important to
investors? 

A: Investors are drawn to intermediate-term municipal bonds because they tend to
provide a good percentage of the yield of long-term bonds while limiting
volatility. Conservative, tax-conscious investors characteristically have among
their investment goals the relative stability of principal. Therefore, it's
comforting that, even as they slightly trailed the longer end of the market,
intermediate-term bonds performed as expected.

Q: What is your outlook for the intermediate-term municipal market in the coming
year?

A: While there has been virtually no sign of inflation, the Federal Reserve
nonetheless announced a bias toward higher interest rates at its last open
market meeting. Most economists have anticipated that the weakness in the Asian
economies would reduce U.S. growth rates slightly in 1998. However, the economy
continues to expand and, while we are a long way from dangerous inflation, the
growth rate bears watching.

If the Fed deems it necessary to raise interest rates at some point, the bond
market will, naturally, come under pressure. In that event, intermediate-term
municipals will continue to demonstrate the limited volatility that has made
them a favorite of conservative investors. In the meantime, municipal bonds
continue to provide good after-tax income in a high-tax era. In my view,
municipals should be a part of everyone's overall investment program.



                           [LINE GRAPH APPEARS HERE]

Comparison of Change in Value of a $10,000 Investment 
in EV Traditional National Limited Maturity Municipals
Fund vs. the Lehman Brothers 7-Year Municipal Bond Index*


 
               EV Traditional                                Lehman Brothers   
           National Limited Maturity    Fund, including      7-Year Municipal  
  Date         Municipals Fund         Max. Sales Change        Bond Index
- --------------------------------------------------------------------------------
 6/30/94            $10,000                 $9,773               $10,000
 7/31/94            $10,133                 $9,903               $10,141
 8/31/94            $10,165                 $9,934               $10,194
 9/30/94            $10,074                 $9,845               $10,096
10/31/94             $9,983                 $9,756                $9,995
11/30/94             $9,881                 $9,656                $9,849
12/31/94            $10,037                 $9,809                $9,999
 1/31/95            $10,205                 $9,973               $10,186
 2/28/95            $10,369                $10,133               $10,415
 3/31/95            $10,434                $10,196               $10,524
 4/30/95            $10,445                $10,207               $10,552
 5/31/95            $10,626                $10,384               $10,833
 6/30/95            $10,594                $10,353               $10,823
 7/31/95            $10,692                $10,448               $10,961
 8/31/95            $10,779                $10,534               $11,090
 9/30/95            $10,833                $10,586               $11,132
10/31/95            $10,931                $10,683               $11,229
11/30/95            $11,040                $10,789               $11,353
12/31/95            $11,096                $10,843               $11,413
 1/31/96            $11,163                $10,909               $11,524
 2/28/96            $11,107                $10,854               $11,485
 3/31/96            $10,988                $10,738               $11,372
 4/30/96            $10,977                $10,727               $11,352
 5/31/96            $10,956                $10,707               $11,334
 6/30/96            $11,001                $10,751               $11,422
 7/31/96            $11,058                $10,807               $11,516
 8/31/96            $11,094                $10,841               $11,523
 9/30/96            $11,195                $10,941               $11,627
10/31/96            $11,288                $11,031               $11,752
11/30/96            $11,481                $11,220               $11,948
12/31/96            $11,428                $11,168               $11,911
 1/31/97            $11,407                $11,147               $11,954
 2/28/97            $11,509                $11,247               $12,054
 3/31/97            $11,429                $11,169               $11,898
 4/30/97            $11,523                $11,261               $11,959
 5/31/97            $11,654                $11,389               $12,109
 6/30/97            $11,749                $11,482               $12,225
 7/31/97            $11,977                $11,704               $12,508
 8/31/97            $11,919                $11,648               $12,419
 9/30/97            $12,015                $11,742               $12,551
10/31/97            $12,065                $11,790               $12,625
11/30/97            $12,138                $11,861               $12,669
12/31/97            $12,321                $12,041               $12,825
 1/31/98            $12,494                $12,209               $12,959
 2/28/98            $12,527                $12,242               $12,970
 3/31/98            $12,566                $12,280               $12,971


Performance+
- --------------------------------------------------------------------------------

Average Annual Total Returns (At Net Asset Value)
- --------------------------------------------------------------------------------
One year                                             10.0%
Life of Fund (6/3/94)                                 5.9

Average Annual Total Returns (Including 2.25% sales charge)
- --------------------------------------------------------------------------------
One year                                              7.5%
Life of Fund (6/3/94)                                 5.3


* Source: Towers Data Systems, Bethesda, MD.

  The chart compares the Fund's total return with that of the Lehman Brothers
  7-year Municipal Bond Index, a broad-based, unmanaged market index of
  intermediate-maturity municipal bonds. Returns are calculated by determining
  the percentage change in net asset value (NAV) with all distributions
  reinvested. The lines on the chart represent the 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.


+ Returns are calculated by determining the percentage change in net asset value
  (NAV) with all distributions reinvested. SEC returns reflect sales charges as
  noted.

  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 their original cost.

- --------------------------------------------------------------------------------
Federal income tax information on distributions. For Federal income tax
purposes, 99.78% of the total dividends paid by the Fund from net investment
income during the year ended March 31, 1998 is designated as an exempt-interest
dividend.
- --------------------------------------------------------------------------------



                                       5
<PAGE>

EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

FINANCIAL STATEMENTS

Statement of Assets and Liabilities                                            


As of March 31, 1998

Assets
- --------------------------------------------------------------------------------
Investment in National Limited Maturity Municipals Portfolio,      $12,939,408
    at value (Note 1A) (identified cost,                           $12,459,278
Receivable from the Administrator (Note 4)                              14,421
Deferred organization expenses (Note 1D)                                 7,664
- --------------------------------------------------------------------------------
Total assets                                                       $12,961,493
- --------------------------------------------------------------------------------


Liabilities
- --------------------------------------------------------------------------------
Payable to affiliate for Trustees' fees (Note 4)                   $        47
Accrued expenses                                                        11,486
- --------------------------------------------------------------------------------
Total liabilities                                                  $    11,533
- --------------------------------------------------------------------------------
Net Assets for 1,268,789 shares of
     beneficial interest outstanding                               $12,949,960
- --------------------------------------------------------------------------------


Sources of Net Assets
- --------------------------------------------------------------------------------
Paid-in capital                                                    $12,576,842
Accumulated net realized loss on investments from
    Portfolio (computed on the basis of identified cost)              (106,521)
Accumulated distributions in excess of net investment income              (491)
Net unrealized appreciation of investments from
    Portfolio (computed on basis of identified cost)                   480,130
- --------------------------------------------------------------------------------
Total                                                              $12,949,960
- --------------------------------------------------------------------------------


Net Asset Value and Redemption
Price Per Share (Note 4)
- --------------------------------------------------------------------------------
($12,949,960 / 1,268,789 shares of
     beneficial interest outstanding)                              $     10.21
- --------------------------------------------------------------------------------


Computation of Offering Price
- --------------------------------------------------------------------------------
Offering price per share (100 / 97.75 of $10.21)                   $     10.45
- --------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price is reduced.


Statement of Operations

For the Year Ended
March 31, 1998

Investment Income (Note 1B)
- --------------------------------------------------------------------------------
Interest income allocated from Portfolio                           $   576,850
Expenses allocated from Portfolio                                      (55,463)
- --------------------------------------------------------------------------------
Net investment income from Portfolio                               $   521,387
- --------------------------------------------------------------------------------


Expenses
- --------------------------------------------------------------------------------
Compensation of Trustees not members of the
    Administrator's organization (Note 4)                          $       173
Service fees (Note 5)                                                    8,829
Registration fees                                                       23,558
Printing and postage                                                    10,869
Legal and accounting services                                            9,234
Custodian fee                                                            9,093
Amortization of organization expenses (Note 1D)                          7,526
Transfer and dividend disbursing agent fees                              6,958
Miscellaneous                                                            1,850
- --------------------------------------------------------------------------------
Total expenses                                                     $    78,090
- --------------------------------------------------------------------------------
Deduct --
    Allocation of expenses to the Administrator (Note 4)           $    14,421
- --------------------------------------------------------------------------------
Total expense reductions                                           $    14,421
- --------------------------------------------------------------------------------

Net expenses                                                       $    63,669
- --------------------------------------------------------------------------------

Net investment income                                              $   457,718
- --------------------------------------------------------------------------------


Realized and Unrealized
Gain (Loss) from Portfolio
- --------------------------------------------------------------------------------
Net realized gain (loss) --
    Investment transactions (identified cost basis)                $    79,542
    Financial futures contracts                                        (96,448)
- --------------------------------------------------------------------------------
Net realized loss on investment transactions                       $   (16,906)
- --------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) --
    Investments                                                    $   442,165
    Financial futures contracts                                        (11,264)
- --------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation)               
    of investments                                                 $   430,901
- --------------------------------------------------------------------------------

Net realized and unrealized gain on investments                    $   413,995
- --------------------------------------------------------------------------------

Net increase in net assets from operations                         $   871,713
- --------------------------------------------------------------------------------


                       See notes to financial statements

                                       6
<PAGE>

EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

FINANCIAL STATEMENTS CONT'D

Statements of Changes in Net Assets


Increase (Decrease)                        Year Ended           Year Ended
in Net Assets                              March 31, 1998       March 31, 1997
- --------------------------------------------------------------------------------
From operations --                 
    Net investment income                     $   457,718         $   450,830
    Net realized loss on           
        investment transactions                   (16,906)           (113,728)
    Net change in unrealized       
        appreciation (depreciation)
        of investments                            430,901              38,437
- --------------------------------------------------------------------------------
Net increase in net assets from operations    $   871,713         $   375,539
- --------------------------------------------------------------------------------
Distributions to shareholders (Note 2) --                    
    From net investment income                $  (458,844)        $  (449,106)
    In excess of net investment income               (491)                 --
    From net realized gain on investments              --             (80,698)
- --------------------------------------------------------------------------------
Total distributions to shareholders           $  (459,335)        $  (529,804)
- --------------------------------------------------------------------------------
Transactions in shares of beneficial                     
    interest (Note 3) --           
    Proceeds from sale of shares              $ 6,645,600         $ 2,771,280
    Net asset value of shares      
        issued to shareholders     
        in payment of                              80,114             144,257
        distributions declared     
    Cost of shares redeemed                    (1,429,298)         (5,522,642)
- --------------------------------------------------------------------------------
Net increase (decrease) in net assets from 
    Fund share transactions                   $ 5,296,416         $(2,607,105)
- --------------------------------------------------------------------------------

Net increase (decrease) in net assets         $ 5,708,794         $(2,761,370)
- --------------------------------------------------------------------------------


Net Assets                         
- --------------------------------------------------------------------------------
At beginning of year                          $ 7,241,166         $10,002,536
- --------------------------------------------------------------------------------
At end of year                                $12,949,960         $ 7,241,166
- --------------------------------------------------------------------------------


Accumulated undistributed          
(distribution in excess of)        
net investment income 
included in net assets                         
- --------------------------------------------------------------------------------
At end of year                                $      (491)        $     1,126
- --------------------------------------------------------------------------------


                       See notes to financial statements

                                       7
<PAGE>

EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

FINANCIAL STATEMENTS CONT'D

Financial Highlights

<TABLE> 
<CAPTION> 
                                                                                        Year Ended March 31,
                                                                   --------------------------------------------------------------
                                                                     1998           1997               1996           1995*
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                                                <C>             <C>               <C>             <C> 
Net asset value --  Beginning of year                              $  9.750        $ 9.960           $  9.930        $ 10.000
- ---------------------------------------------------------------------------------------------------------------------------------

Income from operations
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                              $  0.488        $ 0.492           $  0.492        $  0.402
Net realized and unrealized gain (loss) on investments                0.462         (0.100)             0.029          (0.066)++
- ---------------------------------------------------------------------------------------------------------------------------------

Total income from operations                                       $  0.950        $ 0.392           $  0.521        $  0.336
- ---------------------------------------------------------------------------------------------------------------------------------


Less distributions
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $ (0.489)       $(0.490)          $ (0.491)       $ (0.402)
In excess of net investment income                                   (0.001)            --                --           (0.004)
From net realized gain on investments                                   --          (0.112)               --              --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions                                                $ (0.490)       $(0.602)          $ (0.491)       $ (0.406)
- ---------------------------------------------------------------------------------------------------------------------------------


Net asset value -- End of year                                     $ 10.210        $ 9.750           $  9.960        $  9.930
- ---------------------------------------------------------------------------------------------------------------------------------


Total Return/(1)/                                                      9.95%          4.02%              5.31%           3.48%
- ---------------------------------------------------------------------------------------------------------------------------------


Ratios/Supplemental Data+
- ---------------------------------------------------------------------------------------------------------------------------------
Net assets, end of year (000's omitted)                            $ 12,950        $ 7,241           $ 10,003        $  7,795
Ratio of net expenses to average daily net assets/(2)(3)/              1.27%          1.07%              0.75%           0.58%+
Ratio of net expenses to average daily net assets after custodian      
    fee reduction/(2)/                                                 1.26%          1.05%              0.74%            --
Ratio of net investment income to average daily net assets             4.85%          4.98%              4.88%           4.68%+
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE> 
+  The operating expenses of the Fund and the Portfolio 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> 
    Expenses/(2)(3)/                                                   1.43%          1.31%              1.34%           2.79%+
    Expenses after custodian fee reduction/(2)/                        1.42%          1.29%              1.33%            --
    Net investment income                                              4.69%          4.75%              4.29%           2.47%+
Net investment income per share                                    $  0.472        $ 0.469           $  0.432        $  0.212
- -------------------------------------------------------------------------------------------------------------------------------
</TABLE> 
+     Annualized.
++    The per share amount is not in accord with the net realized and unrealized
      gains and losses for the period because of the timing of sales of Fund
      shares and the amount of the per share realized and unrealized gains and
      losses at such time.
*     For the period from the start of business, June 3, 1994, to March 31,
      1995.
/(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 reinvestment date. Total return
      is not computed on an annualized basis.
/(2)/ Includes the Fund's share of its corresponding Portfolio's allocated
      expenses.
/(3)/ The expense ratios for the year ended March 31, 1996 and periods
      thereafter have been adjusted to reflect a change in reporting
      requirements. The new reporting guidelines require the Fund, as well as
      its corresponding Portfolio, to increase its expense ratio by the effect
      of any expense offset arrangements with its service providers. The expense
      ratios for each of the prior periods have not been adjusted to reflect
      this change.

                       See notes to financial statements

                                       8
<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

NOTES TO FINANCIAL STATEMENTS

  1 Significant Accounting Policies
    ---------------------------------------------------------------------------
    EV Traditional National Limited Maturity Municipals Fund (the Fund) is a
    diversified series of Eaton Vance Investment 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 the National Limited Maturity 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 (13.9% at March 31, 1998). 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.

    On June 23, 1997, the Board of Trustees approved a Plan of Reorganization
    (the "Plan") for the Trust. Under the terms of the Plan, the EV Marathon
    National Limited Maturity Municipals Fund (the Successor Fund), a separate
    series of the Trust, would acquire substantially all of the assets and
    liabilities of the Fund (the Acquired Fund). The transaction will be
    structured for tax purposes to qualify as a tax-free reorganization under
    the Internal Revenue Code. The Trust will issue and deliver to the Acquired
    Fund a number of full and fractional shares of beneficial interest of a
    separate class of the Successor Fund (Class A shares), which will be equal
    in value to the net asset value per share of the Acquired Fund multiplied by
    the number of full and fractional shares of the Acquired Fund then
    outstanding. Such transaction will occur after the close of business, on
    March 31, 1998.

    Effective April 1, 1998, the EV Marathon National Limited Maturity
    Municipals Fund changed its name to the Eaton Vance National Limited
    Maturity Municipals Fund.

    A Investment Valuation -- 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 gains on investments. Accordingly, no
    provision for federal income or excise tax is necessary. At March 31, 1998,
    the Fund, for federal income tax purposes, had a capital loss carryover of
    $136,372 which will reduce the 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 tax. Such capital loss carryover will expire on
    March 31, 2005 ($107,811) and March 31, 2006 ($28,561). Dividends paid by
    the Fund from net interest on tax-exempt municipal bonds allocated from the
    Portfolio are not included 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 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.

                                       9
<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

NOTES TO FINANCIAL STATEMENTS CONT'D

    F 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 the Fund or the
    Portfolio maintains with IBT. All significant credit balances used to reduce
    the Fund's custodian fees are reported as a reduction of operating expenses
    on the Statement of Operations.

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


  2 Distribution 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
    the Fund at the net asset value as of the reinvestment date. Distributions
    are paid in the form of additional shares 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 results 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.


  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:

                                                     Year Ended March 31,
                                           ----------------------------------
                                                 1998                1997
       ----------------------------------------------------------------------
       Sales                                   661,019              279,206
       Issued to shareholders
         electing to receive
         payments of
         distributions in 
         Fund shares                             7,999               14,623

       Redemptions                            (143,102)            (555,174)
       ----------------------------------------------------------------------
       Net increase (decrease)                 525,916             (261,345)
       ----------------------------------------------------------------------



  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,
    $14,421 of expenses related to the operation of the Fund were allocated to
    EVM. Certain of the officers and Trustees of the Fund and the Portfolio are
    officers and directors/trustees of the above organizations. Except as to
    Trustees of the Fund and 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 advisor fee earned by BMR. Eaton Vance
    Distributors, Inc. (EVD) received $1,274 as its portion of the sales charge
    on sales of Fund shares for the year ended March 31, 1998.


  5 Service Plan
    ---------------------------------------------------------------------------
    The Fund adopted a service plan on April 14, 1994 designed to meet the
    requirements of Rule 12b-1 under the Investment Company Act of 1940 and the
    service fee requirements of the sales charge rule of The National
    Association of Securities Dealers Inc. The Service Plan provides that the
    Fund may make service fee payments to the Principal Underwriter, Eaton Vance
    Distributors, Inc. (EVD), a subsidiary of Eaton Vance Management, Authorized
    Firms or other persons in amounts not exceeding 0.25% of the Fund's average
    daily net assets for any fiscal year. The Trustees have initially
    implemented the Plan by authorizing the Fund to make quarterly service fee
    payments to the Principal Underwriter and Authorized Firms in amounts not
    exceeding 0.15% of the Fund's average daily net assets for any fiscal year
    which is attributable to shares of a Fund sold by such persons and remaining
    outstanding for at least one year. The Fund paid or accrued service fees to
    or payable to EVD for the year ended March 31, 1998, in the amount $8,829.
    Service fee payments are made for personal services and/or the maintenance
    of shareholder accounts.

    Certain of the officers and Trustees of the Fund are officers or directors
    of EVD.


  6 Investment Transactions
    --------------------------------------------------------------------------
    Increases and decreases in the Fund's investment in the Portfolio for the
    year ended March 31, 1998 aggregated $6,697,111 and $1,936,442,
    respectively.

                                       10
<PAGE>

EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998

INDEPENDENT AUDITORS' REPORT


To the Trustees and Shareholders
of Eaton Vance Investment Trust:
- --------------------------------------------------------------------------------
We have audited the accompanying statement of assets and liabilities of EV
Traditional National Limited Maturity Municipals Fund (one of the series
constituting the Eaton Vance Investment Trust) as of March 31, 1998, the related
statement of operations for the year then ended, the statements of changes in
net assets for the years ended March 31, 1998 and 1997 and the financial
highlights for each of the years in the three-year period ended March 31, 1998
and for the period from the start of business, June 3, 1994, to March 31, 1995.
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 audits 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 EV Traditional
National Limited Maturity Municipals Fund at March 31, 1998, the results of its
operations, the changes in its net assets and its financial highlights for the
respective stated periods in conformity with generally accepted accounting
principles.

                                        DELOITTE & TOUCHE LLP
                                        Boston, Massachusetts
                                        May 1, 1998




                                      11

<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998

PORTFOLIO OF INVESTMENTS


Tax-Exempt Investments -- 100.0%
                                                                             
                                
          
Ratings (Unaudited) Principal                                      
- ------------------- Amount                                        
          Standard  (000's                                        
Moody's   & Poor's  omitted)   Security                      Value 
- -------------------------------------------------------------------------- 

Assisted  Living -- 1.2%
- -------------------------------------------------------------------------- 
 NR        NR       $1,000     New Jersey Economic
                               Development Authority,
                               (Chelsea at East
                               Brunswick), (AMT),            
                               8.00%, 10/1/07                $ 1,107,710 
- -------------------------------------------------------------------------- 
                                                             $ 1,107,710
- -------------------------------------------------------------------------- 

Cogeneration -- 4.3%
- --------------------------------------------------------------------------  
 NR        BBB      $  650     Eastern Connecticut
                               Resource Recovery
                               Authority, (Wheelabrator      
                               Lisbon), (AMT), 5.50%,
                               1/1/20                        $   643,435
 NR        BBB-      1,120     New Jersey EDA,
                               (Trigen-Trenton), (AMT),        
                               6.10%, 12/1/05                  1,207,102
 NR        BB+       1,250     New Jersey EDA, (Vineland
                               Cogeneration) (AMT),
                               7.875%, 6/1/19                  1,376,313
 NR        NR          500     Palm Beach County, FL,
                               Okeelanta Power Project,
                               (AMT), 6.85%, 2/15/21             400,000
 NR        NR          500     Palm Beach County, FL,
                               Osceola Power Project,
                               (AMT), 6.95%, 1/1/22              395,000
- --------------------------------------------------------------------------  
                                                             $ 4,021,850
- --------------------------------------------------------------------------  

Colleges and Universities -- 1.2%
- --------------------------------------------------------------------------   
 Aa        AA-      $1,700     University of Illinois,                   
                               0.00%, 4/1/15                 $   707,948 
 Aa        AA-       1,000     University of Illinois,                   
                               0.00%, 4/1/16                     394,140 
- --------------------------------------------------------------------------   
                                                             $ 1,102,088
- --------------------------------------------------------------------------   

Economic Development Revenue -- 1.0%
- --------------------------------------------------------------------------    
 NR        BB-      $  950     Michigan State Strategic
                               Fund, 6.25%, 8/1/12           $   981,065
- --------------------------------------------------------------------------    
                                                             $   981,065
- --------------------------------------------------------------------------    

Education -- 1.2%
- --------------------------------------------------------------------------    
 Ba1       NR       $1,000     New Hampshire Higher
                               Education and Health
                               Facilities Authority          
                               (Colby-Sawyer College),
                               7.20%, 6/1/12                 $ 1,086,240
- --------------------------------------------------------------------------    
                                                             $ 1,086,240
- --------------------------------------------------------------------------    


Escrowed/Prerefunded -- 10.7%
- --------------------------------------------------------------------------     
 Aaa       AAA      $1,500     Grand Ledge, MI, Public
                               School District, (MBIA),
                               Prerefunded to 5/1/04,                    
                               7.875%, 5/1/11                $ 1,809,690 
 NR        NR        3,500     Maricopa County, AZ, IDA,
                               Multifamily, 6.45%, 1/1/17      3,954,964
 NR        NR          990     Maricopa County, AZ, IDA,
                               Multifamily, 7.876%, 1/1/11     1,194,683
 Aaa       NR        3,000     Massachusetts Turnpike
                               Authority, 5.00%, 1/1/20/(1)/   2,990,759
- --------------------------------------------------------------------------     
                                                             $ 9,950,096
- --------------------------------------------------------------------------     

General Obligations -- 11.7%
- --------------------------------------------------------------------------      
 Baa2      BBB+     $4,000     Detroit, MI, 6.50%,                       
                               4/1/02/(2)/                   $ 4,306,559 
 Aa1       AA+         750     Ohio State, 0.00%, 8/1/08         468,068
 NR        NR        1,800     Pennsylvania Economic
                               Development Financing
                               Authority, (Resource
                               Recovery for Northampton),      
                               6.75%, 1/1/07                   1,966,824  
 Baa1      A         1,500     Puerto Rico Aqueduct and
                               Sewer Authority, 5.00%,         
                               7/1/15                          1,474,365  
 NR        NR        2,540     Youngstown, OH, County
                               School District, 6.40%,         
                               7/1/00                          2,633,802 
- --------------------------------------------------------------------------      
                                                             $10,849,618
- -------------------------------------------------------------------------- 

Hospitals -- 10.0%
- -------------------------------------------------------------------------- 
 NR        NR       $1,900     Colorado Health Facilities
                               Authority, (Steamboat
                               Springs Health), 
                               5.00%, 9/15/03                $ 1,914,839   
 NR        NR          500     Colorado Health Facilities
                               Authority, (Steamboat
                               Springs Health),                  
                               5.30%, 9/15/09                    500,625 
 Baa3      NR        1,340     Massachusetts Health and
                               Educational Facilities
                               Authority, (Milford-             
                               Whitinsville Hospital),                   
                               Series B, 7.125%, 7/15/02       1,427,328 
 NR        BBB         500     Michigan State Hospital
                               (Gratiot Community Hospital),
                               6.10%, 10/1/07                    539,310
 NR        BB-         500     New Hampshire Higher
                               Educational And Health
                               Facilities Authority,
                               (Littleton Hospital                       
                               Association), 5.45%, 5/1/08       502,865 



                       See notes to financial statements

                                       12
<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998

PORTFOLIO OF INVESTMENTS CONT'D


Ratings (Unaudited) Principal                                      
- ------------------- Amount                                        
          Standard  (000's                                        
Moody's   & Poor's  omitted)   Security                      Value 
- -------------------------------------------------------------------------- 

Hospitals (continued)
- -------------------------------------------------------------------------- 
 NR        BBB-     $1,390     New Hampshire Higher
                               Educational And Health
                               Facilities Authority,
                               (Monadnock Community          
                               Hospital), 5.60%, 10/1/12     $ 1,412,991
 Baa       BBB-      1,830     Richardson, TX, Hospital
                               Authority, (Richardson
                               Medical Center), 6.50%,                   
                               12/1/12                         1,969,867 
 NR        BBB         500     Valley, AL, Special Tax
                               Care Facilities Financing
                               Authority, (Lanier Memorial       
                               Hospital), 5.45%, 11/1/11         502,320 
 NR        BBB         530     Valley, AL, Special Tax
                               Care Facilities Financing
                               Authority, (Lanier Memorial       
                               Hospital), 5.50%, 11/1/07         546,902  
- -------------------------------------------------------------------------- 
                                                             $ 9,317,047
- --------------------------------------------------------------------------  

Housing -- 5.8%
- --------------------------------------------------------------------------   
 A2        NR       $1,005     Illinois Development
                               Finance Authority, Elderly
                               Housing, (Mattoon Tower),     
                               (Section 8), 6.35%, 7/1/10    $ 1,045,059 
 Baa3      NR        1,035     Illinois Development
                               Finance Authority, Elderly
                               Housing, (Rome Meadows),        
                               6.40%, 2/1/03                   1,065,129 
 Baa3      NR        1,145     Illinois Development
                               Finance Authority, Elderly
                               Housing, (Rome Meadows),        
                               6.65%, 2/1/06                   1,187,239 
 Aa2       AA        2,000     Wisconsin Housing and
                               Economic Development
                               Authority, (Home Ownership),               
                               (AMT), 6.45%, 9/1/27            2,137,560 
- --------------------------------------------------------------------------   
                                                             $ 5,434,987
- --------------------------------------------------------------------------   

Industrial Development Revenue/
Pollution Control Revenue -- 18.1%
- --------------------------------------------------------------------------    
 NR        NR       $  690     Austin, TX (Cargoport
                               Development LLC) (AMT),       
                               7.50%, 10/1/07                $   735,071 
 NR        NR          455     Austin, TX (Cargoport
                               Development LLC) (AMT),           
                               8.30%, 10/1/21                    506,602 
 A1        NR        1,060     Boise, ID, (Western Trailer
                               Co.), (LOC: First Security
                               Bank), (AMT), 5.05%, 9/1/06     1,047,439
 NR        BBB-      1,000     Clark County, NV, (Nevada
                               Power Co.), (AMT), 5.90%,                 
                               10/1/30                         1,026,170 
 A3        A-        1,000     Columbus, NC (International
                               Paper Co.), 5.80%, 12/1/16      1,048,340
 A3        A-          750     Essex County, NY, LOC,
                               (International Paper Co.),                
                               (AMT), 5.70%, 7/1/16              800,850 
 NR        NR          900     Iowa Finance Authority,
                               Commercial Development
                               Revenue, (Southbridge                     
                               Mall), 6.375%, 12/1/13            906,129 
 NR        NR        3,445     Jackson, TN, Solid Waste
                               Disposal (Owens-Corning
                               Fiberglass), (AMT), 6.25%,                
                               3/31/04/(2)/                    3,564,472 
 A3        A-          500     Jones County,
                               (International Paper Co.),                
                               5.80%, 10/1/21                    514,810 
 NR        NR          500     Kimball, NE, EDA, (Clean
                               Harbors Inc.) (AMT),                      
                               10.75%, 9/1/26                    549,765 
 NR        NR        1,000     New Jersey EDA, (Holt
                               Hauling), 7.90%, 3/1/27         1,142,860
 NR        NR          750     Ohio Solid Waste Revenue,
                               (Republic Engineered Steels
                               Inc.), (AMT), 9.00%, 6/1/21       808,665
 NR        BBB-      2,000     Pennsylvania Economic
                               Development Financing
                               Authority, (Resources            
                               Recovery - Culver Project),               
                               (AMT), 7.05%, 12/1/10           2,227,220 
 NR        NR          500     Robbins, IL, Resources
                               Recovery, (AMT), 8.375%,                  
                               10/15/10                          523,575 
 NR        NR        1,330     Santa Fe, NM (Crow Hobbs),
                               8.25%, 9/1/05                   1,391,193
- --------------------------------------------------------------------------    
                                                             $16,793,161
- --------------------------------------------------------------------------    

Insured-Colleges and Universities -- 0.2%
- --------------------------------------------------------------------------    
 Aaa       AAA      $  500     Southern Illinois
                               University, Housing and
                               Auxiliary Facilities,                     
                               (MBIA), 0.00%, 4/1/17         $   186,100 
- --------------------------------------------------------------------------    
                                                             $   186,100
- --------------------------------------------------------------------------     

Insured-General Obligations -- 1.6%
- --------------------------------------------------------------------------     
 Aaa       AAA      $  500     Kalamazoo, MI, (MBIA),
                               5.40%, 5/1/14                 $   528,720
 Aaa       AAA       1,000     Willow Run, MI, Community
                               School District, (AMBAC),                 
                               5.00%, 5/1/16                     984,750 
- --------------------------------------------------------------------------     
                                                             $ 1,513,470
- --------------------------------------------------------------------------     


                       See notes to financial statements

                                       13
<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998

PORTFOLIO OF INVESTMENTS CONT'D


Ratings (Unaudited) Principal                                      
- ------------------- Amount                                        
          Standard  (000's                                        
Moody's   & Poor's  omitted)   Security                      Value 
- -------------------------------------------------------------------------- 

Insured-Housing -- 2.5%
- -------------------------------------------------------------------------- 
 Aaa       AAA      $2,115     Massachusetts HFA,
                               (Harborpoint Development),
                               (AMBAC), (AMT), 6.20%,        
                               12/1/10                       $ 2,290,630
- -------------------------------------------------------------------------- 
                                                             $ 2,290,630
- -------------------------------------------------------------------------- 

Insured-Industrial Development Revenue -- 0.6%
- -------------------------------------------------------------------------- 
 Aaa       AAA      $  260     Arkansas Development
                               Finance Authority, (ADFA
                               Guaranty Program), (AMBAC),   
                               (AMT), 5.40%, 11/1/12         $   261,227
 Aaa       AAA         260     Arkansas Development
                               Finance Authority, (AEDC
                               Guaranty Program), (AMBAC),       
                               (AMT), 5.40%, 11/1/12             261,227
- -------------------------------------------------------------------------- 
                                                             $   522,454
- -------------------------------------------------------------------------- 

Insured-Special Tax Revenue -- 0.6%
- -------------------------------------------------------------------------- 
 Aaa       AAA      $  500     George L. Smith, (Georgia
                               World Congress Center -
                               Domed Stadium Project),
                               (MBIA), (AMT),                
                               6.00%, 7/1/06/(3)/            $   527,020
- -------------------------------------------------------------------------- 
                                                             $   527,020
- -------------------------------------------------------------------------- 

Insured-Transportation -- 1.1%
- -------------------------------------------------------------------------- 
 Aaa       AAA      $1,000     Chicago, IL (O'Hare
                               International Airport),      
                               (AMBAC), 5.50%, 1/1/16        $ 1,020,660
- -------------------------------------------------------------------------- 
                                                             $ 1,020,660
- -------------------------------------------------------------------------- 

Lease Revenue/
Certificates of Participation -- 0.6%
- -------------------------------------------------------------------------- 
 Baa3      NR       $  500     Mashantucket Western Pequot
                               Tribe, CT, 5.55%, 9/1/08      $   525,410
- -------------------------------------------------------------------------- 
                                                             $   525,410
- -------------------------------------------------------------------------- 

Life Care -- 4.0%
- -------------------------------------------------------------------------- 
 NR        NR       $1,065     Florence, KY, Housing
                               Facilities, (Bluegrass
                               Housing), 7.25%, 5/1/07       $ 1,134,470
 NR        NR        2,000     Illinois Health Facilities
                               Authority, (Lutheran Social
                               Services), 6.125%, 8/15/10      2,090,160
 NR        NR          475     Vermont State Industrial
                               Development Authority,
                               (Wake Robins), 8.00%, 4/1/99      478,392
- -------------------------------------------------------------------------- 
                                                             $ 3,703,022
- --------------------------------------------------------------------------  

Miscellaneous -- 0.6%
- --------------------------------------------------------------------------  
 NR        NR       $  600     Tax Revenue Exempt
                               Securities Trust, Community
                               Health Provider, (Pooled
                               Loan Program Various States               
                               Trust Certificates), 6.00%,
                               12/1/36                       $   605,010 
- --------------------------------------------------------------------------  
                                                             $   605,010
- --------------------------------------------------------------------------   

Nursing Homes -- 11.7%
- --------------------------------------------------------------------------   
 NR        NR       $1,105     Arizona Health Facilities
                               Authority Assisted Living
                               Facilities, (Mesa), 7.625%,               
                               1/1/06                        $ 1,141,399 
 NR        A+        3,500     California Statewide
                               Communities Development
                               Corporation, (Pacific                     
                               Homes), 5.90%, 4/1/09           3,724,559 
 NR        NR          650     Citrus County, FL,
                               Industrial Development
                               Authority, (Beverly                       
                               Enterprises), 5.00%,
                               4/1/03/(3)/                       650,572 
 NR        NR        1,000     Clovis, NM, Industrial
                               Development Revenue,
                               (Retirement Ranches, Inc.),               
                               7.75%, 4/1/19                   1,022,420   
 NR        NR          850     Fairfield, OH, EDR,
                               (Beverly Enterprises),                     
                               8.50%, 1/1/03                     926,798 
 NR        NR        1,500     Massachusetts Industrial
                               Finance Agency, Health Care
                               Facilities, (Age Institute
                               of Massachusetts),                         
                               7.60%, 11/1/05                  1,605,300 
 NR        NR        1,550     Saint Tammany Public Trust
                               Finance Authority, LA
                               (Christwood), 8.75%, 11/15/05   1,799,287
- --------------------------------------------------------------------------   
                                                             $10,870,335
- --------------------------------------------------------------------------    

Pooled Loans -- 4.6%
- --------------------------------------------------------------------------    
 Aa2       NR       $1,900     Arizona Educational Loan
                               Marketing Corp., (AMT),                   
                               6.25%, 6/1/06                 $ 2,076,130  
 A         NR        1,000     Arizona Student Loan
                               Acquisition Authority,                    
                               (AMT), 7.625%, 5/1/10           1,112,750 
 A         NR        1,000     Arkansas State Student Loan
                               Authority, (AMT), 6.25%,                  
                               6/1/10                          1,056,120 
- --------------------------------------------------------------------------    
                                                             $ 4,245,000
- --------------------------------------------------------------------------    

                       See notes to financial statements

                                       14
<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998

PORTFOLIO OF INVESTMENTS CONT'D


Ratings (Unaudited) Principal                                      
- ------------------- Amount                                        
           Standard (000's                                        
Moody's    & Poor's omitted)   Security                      Value 
- -------------------------------------------------------------------------- 

Transportation -- 6.7%
- -------------------------------------------------------------------------- 
 Baa1      BBB      $2,000     Denver, CO City and County
                               Airport, (AMT), 7.00%,        
                               11/15/99                      $ 2,094,760 
 NR        NR        1,225     Eagle County, CO, Airport
                               Terminal Corp. (American
                               Airlines), (AMT), 6.75%,        
                               5/1/06                          1,309,268
 NR        NR          900     Los Angeles, CA, Regional
                               Airport Improvement
                               Corporate Lease,
                               (TransWorld Airlines),            
                               6.125%, 5/15/00                   900,117
 NR        NR          260     Memphis-Shelby County, TN
                               Airport Authority, 6.125%,        
                               12/1/16                           266,578
 Baa2      BBB         500     Memphis-Shelby County, TN,
                               (Federal Express Co.),            
                               5.35%, 9/1/12                     512,115
 NR        NR        1,000     Northwest Arkansas Regional
                               Airport Authority, (AMT),       
                               7.625%, 2/1/27                  1,154,370
- -------------------------------------------------------------------------- 
                                                             $ 6,237,208
- -------------------------------------------------------------------------- 

Total Tax-Exempt Investments -- 100.0%
    (identified cost $87,240,993)                            $92,890,181
- -------------------------------------------------------------------------- 

The Portfolio invests primarily in debt securities issued by municipalities. The
ability of the issuers of the debt securities to meet their obligations may be
affected by economic developments in a specific industry or municipality. In
order to reduce the risk of such economic developments, at March 31, 1998, 8.5%
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 3.3% to 5.2%
of total investments.

At March 31, 1998, the concentration of the Portfolio's investments in the
various states, determined as a percentage of total investments is as
follows:

     Arizona                                              10%
     Michigan                                             10%
     Others, representing less than 10% individually      80%

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

/(1)/ Security (or a portion thereof) has been segregated to cover margin
      requirements on open financial futures contracts. 
/(2)/ Security has been segregated to cover when-issued securities.
/(3)/ When-issued security.

                       See notes to financial statements

                                       15
<PAGE>

National Limited Maturity Municipals Portfolio as of March 31, 1998

FINANCIAL STATEMENTS

Statement of Assets and Liabilities                                           


As of March 31, 1998
Assets
- --------------------------------------------------------------------------------
Investments, at value (Note 1A)
    (identified cost, $87,240,993)                           $92,890,181
Cash                                                                 459
Receivable for investments sold                                   20,000
Interest receivable                                            1,720,255
Deferred organization expenses (Note 1D)                             219
- --------------------------------------------------------------------------------
Total assets                                                 $94,631,114
- --------------------------------------------------------------------------------


Liabilities
- --------------------------------------------------------------------------------
Payable for when-issued securities (Note 1G)                 $ 1,173,564
Demand note payable (Note 3)                                     297,000
Payable for daily variation margin on open
    financial futures contracts (Notes 1E and 6)                  21,562
Payable to affiliate for Trustees' fees (Note 2)                   1,945
Accrued expenses                                                   9,783
- --------------------------------------------------------------------------------
Total liabilities                                            $ 1,503,854
- --------------------------------------------------------------------------------
Net Assets applicable to investors' interest in Portfolio    $93,127,260
- --------------------------------------------------------------------------------


Sources of Net Assets
- --------------------------------------------------------------------------------
Net proceeds from capital contributions and withdrawals      $87,497,879
Net unrealized appreciation of investments (computed
    on the basis of identified cost)                           5,629,381
- --------------------------------------------------------------------------------
Total                                                        $93,127,260
- --------------------------------------------------------------------------------



Statement of Operations

For the Year Ended
March 31, 1998
Investment Income (Note 1B)
- --------------------------------------------------------------------------------
Interest income                                              $ 5,904,500
- --------------------------------------------------------------------------------
Total investment income                                      $ 5,904,500
- --------------------------------------------------------------------------------


Expenses
- --------------------------------------------------------------------------------
Investment adviser fee (Note 2)                              $   466,594
Compensation of Trustees not members of the
    Investment Adviser's organization (Note 2)                     7,331
Custodian fee (Note 1H)                                           57,976
Legal and accounting services                                     21,214
Amortization of organization expenses (Note 1D)                    2,468
Miscellaneous                                                     27,479
- --------------------------------------------------------------------------------
Total expenses                                               $   583,062
- --------------------------------------------------------------------------------
Deduct --
    Reduction of custodian fee (Note 1H)                     $    12,223
- --------------------------------------------------------------------------------
Total expense reductions                                     $    12,223
- --------------------------------------------------------------------------------

Net expenses                                                 $   570,839
- --------------------------------------------------------------------------------

Net investment income                                        $ 5,333,661
- --------------------------------------------------------------------------------


Realized and Unrealized
Gain (Loss) on Investments
- --------------------------------------------------------------------------------
Net realized gain (loss) --
    Investment transactions (identified cost basis)          $ 1,034,776
    Financial futures contracts                               (1,196,652)
- --------------------------------------------------------------------------------
Net realized loss on investment transactions                 $  (161,876)
- --------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) --
    Investments (identified cost basis)                      $ 4,827,994
    Financial futures contracts                                 (158,570)
- --------------------------------------------------------------------------------
Net change in unrealized appreciation (depreciation)         
    of investments                                           $ 4,669,424
- --------------------------------------------------------------------------------

Net realized and unrealized gain on investments              $ 4,507,548
- --------------------------------------------------------------------------------

Net increase in net assets from operations                   $ 9,841,209
- --------------------------------------------------------------------------------

                       See notes to financial statements

                                      16
<PAGE>

National Limited Maturity Municipals Portfolio as of March 31, 1998

FINANCIAL STATEMENTS CONT'D

Statements of Changes in Net Assets

<TABLE> 
<CAPTION> 

Increase (Decrease)                   Year Ended             Year Ended
in Net Assets                         March 31, 1998         March 31, 1997
- --------------------------------------------------------------------------------
<S>                                   <C>                    <C>  
From operations --
    Net investment income             $   5,333,661          $    6,518,710
    Net realized loss on
        investment transactions            (161,876)             (1,129,741)
    Net change in unrealized
        appreciation (depreciation)  
        of investments                    4,669,424                (150,139)
- --------------------------------------------------------------------------------
Net increase in net assets
    from operations                   $   9,841,209          $    5,238,830
- --------------------------------------------------------------------------------
Capital transactions --
    Contributions                     $  44,850,231          $    8,914,088
    Withdrawals                         (64,067,696)            (46,425,770)
- --------------------------------------------------------------------------------
Net decrease in net assets from
    capital transactions              $ (19,217,465)         $  (37,511,682)
- --------------------------------------------------------------------------------


Net decrease in net assets            $  (9,376,256)         $  (32,272,852)
- --------------------------------------------------------------------------------


Net Assets
- --------------------------------------------------------------------------------
At beginning of year                  $ 102,503,516          $  134,776,368
- --------------------------------------------------------------------------------
At end of year                        $  93,127,260          $  102,503,516
- --------------------------------------------------------------------------------
</TABLE> 

                       See notes to financial statements

                                      17
<PAGE>


National Limited Maturity Municipals Portfolio as of March 31, 1998

FINANCIAL STATEMENTS CONT'D

Supplementary Data

<TABLE> 
<CAPTION> 
                                                                        Year Ended March 31,
                                              ------------------------------------------------------------------------------
                                               1998             1997             1996             1995             1994*
- ----------------------------------------------------------------------------------------------------------------------------

Ratios to average daily net assets
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                            <C>             <C>              <C>              <C>              <C>
Expenses (1)                                     0.60%            0.60%            0.57%            0.53%            0.52%+
Expenses after custodian fee reduction           0.59%            0.58%            0.56%              --               --
Net investment income                            5.53%            5.45%            5.08%            5.02%            4.74%+
Portfolio Turnover                                 41%              68%              68%              56%              21%
- ----------------------------------------------------------------------------------------------------------------------------
Net assets, end of year (000's omitted)       $93,127        $ 102,504        $ 134,776        $ 169,621        $ 177,842
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE> 


+   Annualized.
*   For the period from the start of business, May 3, 1993, to March 31, 1994.
/(1)/ The expense ratios for the year ended March 31, 1996 and periods
    thereafter have been adjusted to reflect a change in reporting requirements.
    The new reporting guidelines require the Portfolio to increase its expense
    ratios by the effect of any expense offset arrangements with its service
    providers. The expense ratios for each of the prior periods have not been
    adjusted to reflect this change.

                       See notes to financial statements

                                      18
<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998 

NOTES TO FINANCIAL STATEMENTS

1 Significant Accounting Policies
  ------------------------------------------------------------------------------
  National Limited Maturity Municipals Portfolio (the Portfolio) seeks to
  provide (1) a high level of income exempt from regular federal income tax and
  (2) limited principal fluctuation. The Portfolio is registered under the
  Investment Company Act of 1940 as a 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 of the Portfolio. The policies are in conformity with
  generally accepted accounting principles.

  A Investment Valuation -- 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 listed on the
  commodity exchanges are valued at closing settlement 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 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 is 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. 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, a Portfolio will realize a loss in the amount of the
  cost of the option. When a Portfolio enters into a closing sales transaction,
  the Portfolio will realize a gain or loss depending on whether the sales
  proceeds from the closing sales transaction is 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.

                                       19
<PAGE>
 
National Limited Maturity Municipals Portfolio as of March 31, 1998 

NOTES TO FINANCIAL STATEMENTS CONT'D


  H 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
  balances the Portfolio maintains with IBT. All significant credit balances
  used to reduce the Portfolio's custodian fees are reported as a reduction of
  operating expenses on the Statement of Operations.

  I 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 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.

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

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 March 31, 1998, the fee was equivalent to 0.48% of the
  Portfolio's average net assets for such period and amounted to $466,594.
  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. Certain of the officers and
  Trustees of the Portfolio are officers and directors/trustees of the above
  organizations. Trustees of the Portfolio that are not affiliated with the
  Investment Adviser may elect to defer receipt of all or a percentage of their
  annual fees in accordance with the terms of the Trustees Deferred Compensation
  Plan. For the year ended March 31, 1998, no significant amounts have been
  deferred.

3 Line of Credit
  ------------------------------------------------------------------------------
  The Portfolio participates with other portfolios and funds managed by BMR and
  EVM and its affiliates in a $100 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 either the Eurodollar rate or federal funds rate. In addition, a
  fee computed at an annual rate of 0.10% 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 period.

4 Investments
  ------------------------------------------------------------------------------
  Purchases and sales of investments, other than U.S. Government securities and
  short-term obligations, aggregated $39,870,169 and $55,540,077, respectively,
  for the year ended March 31, 1998.

5 Federal Income Tax Basis of Investments
  ------------------------------------------------------------------------------
  The cost and unrealized appreciation/depreciation in value of the investments
  owned at March 31, 1998, as computed on a federal income tax basis, were as
  follows:

  Aggregate cost                                                 $  87,240,993
  ------------------------------------------------------------------------------
  Gross unrealized appreciation                                  $   5,673,416
  
  Gross unrealized depreciation                                        (24,228)
  ------------------------------------------------------------------------------
  Net unrealized appreciation                                    $   5,649,188
  ------------------------------------------------------------------------------


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 written
  options and 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. A summary of
  obligations under these financial instruments at March 31, 1998 were as
  follows:


<PAGE>

   Futures
   Contracts                                                   Net Unrealized
   Expiration Date       Contracts                 Position    Appreciation
  ------------------------------------------------------------------------------
   6/98                  46 U.S. Treasury Bonds    Short       $      19,807
  ------------------------------------------------------------------------------

                                       20
<PAGE>
National Limited Maturity Municipals Portfolio as of March 31, 1998

INDEPENDENT AUDITORS' REPORT

To the Trustees and Investors of
National Limited Maturity Municipals Portfolio:
- ----------------------------------------------------
We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of National Limited Maturity Municipals Portfolio
as of March 31, 1998, the related statement of operations for the year then
ended, the statements of changes in net assets for the years ended March 31,
1998 and 1997 and the supplementary data for each of the years in the four-year
period ended March 31, 1998 and for the period from the start of business, May
3, 1993, to March 31, 1994. 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 audits 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 March
31, 1998 by correspondence with the custodian and brokers; where replies were
not received, alternative procedures were performed. 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 National Limited Maturity
Municipals Portfolio at March 31, 1998, the results of its operations, the
changes in its net assets and its supplementary data for the respective stated
periods in conformity with generally accepted accounting principles.

                                  DELOITTE & TOUCHE LLP
                                  Boston, Massachusetts
                                  May 1, 1998


                                      21

<PAGE>
 
EV Traditional National Limited Maturity Municipals Fund as of March 31, 1998
INVESTMENT MANAGEMENT


EV Traditional National Limited Maturity Municipals Fund


         Officers                         Independent Trustees                 
         Thomas J. Fetter                 Donald R. Dwight                     
         President                        President, Dwight Partners, Inc.     
                                                                               
         James B. Hawkes                  Samuel L. Hayes, III                 
         Vice President and Trustee       Jacob H. Schiff Professor of 
                                          Investment Banking, Harvard 
                                          University Graduate School of 
         Robert B. MacIntosh              Business Administration               
         Vice President                                                         
                                          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 
                                                                               
                                                                               
National Limited Maturity Municipals Portfolio


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




                                      22
<PAGE>
 
                       This Page Intentionally Left Blank
<PAGE>
 
Investment Advisor of
National Limited Maturity Municipals Portfolio
Boston Management and Research
24 Federal Street
Boston, MA 02110


Administrator of
EV Traditional National Limited Maturity Municipals Fund
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
Attention: Eaton Vance Funds
P.O. Box 5123
Westborough, MA 01581-5123


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


EV Traditional National Limited
Maturity Municipals Fund
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 distribution
   plan, sales charges and expenses.  Please read the prospectus carefully 
                       before you invest or send money.
- --------------------------------------------------------------------------------
                                                                   T-LNASRC-5/98


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