PUTNAM MANAGED MUNICIPAL INCOME TRUST
N-30D, 1994-06-29
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Putnam 
Managed 
Municipal 
Income 
Trust 

Semiannual 
Report 
April 30, 1994 

For investors seeking high 
current income exempt 
from federal income tax through a diversified 
portfolio of tax-exempt 
municipal securities 
A member 
of the Putnam 
Family of Funds 

Contents 
2    How your fund performed 
3    From the Chairman 
4    Report from Putnam Management 
     Semiannual Report 
6    Report of Independent Accountants 
7    Portfolio of investments owned 
14   Financial statements 
22   Fund performance supplement 

<PAGE>

How your 
fund performed 
For periods ended April 30, 1994 

<TABLE>
<CAPTION>
 Total return* 
                            Fund           Lehman Brothers 
                                 Market          Municipal        Consumer 
                      NAV         price         Bond Index     Price Index 
<S>                 <C>           <C>               <C>             <C>
6 months            -4.05%        -3.44%             -3.53%           1.17% 
1 year               4.73          4.66               2.16            2.36 
5 years             61.01         62.27              50.63           19.74 
 annualized          9.99         10.17               8.54            3.67 
Life-of-fund 
(since 2/24/89)     63.31         59.78              53.84           21.22 
 annualized          9.91          9.45               8.65            3.78 
</TABLE>

<TABLE>
<CAPTION>

 Share data (common shares)                Market 
                                  NAV       price 
<S>                            <C>        <C>            
October 31, 1993               $10.88     $11.375 
April 30, 1994                 $ 9.98     $10.500 
</TABLE>

<TABLE>
<CAPTION>
 Distributions (a)                                      Capital gains 
(common shares)                        Investment     Short-    Long- 
6 months ended              Number         income       term     term         Total 
<S>                            <C>       <C>            <C>    <C>        <C>
April 30, 1994                   6       $  0.381 $     0.034  $0.059     $   0.474 
(Preferred Shares) 
6 months ended April 30, 1994          Number     Series                   Total 
                                          550          A                  $1,297.46 
                                          550          B                  $1,122.76 
                                          650          C                  $1,210.17 
</TABLE>

<TABLE>
<CAPTION>
Current returns                                            Taxable 
  (common shares)                                     equivalents+ 
at the end of the period              Market                Market 
                                NAV    price       NAV       price 
<S>                           <C>       <C>      <C>         <C>
Current dividend rate         7.64%     7.26%    12.65%      12.02% 
</TABLE>

* Performance data represent past results. Investment return and principal 
value will fluctuate so that an investor's shares, when sold, may be worth 
more or less than their original cost. 
(a) Capital gains, if any, are taxable for federal and, in most cases, state 
purposes. For some investors, investment income may also be subject to the 
Alternative Minimum Tax. Investment income may be subject to state and local 
tax. 
+ Assumes the maximum federal tax rate of 39.6%. Results for investors 
subject to lower tax rates would not be as advantageous, although many such 
investors would have the opportunity to receive attractive tax benefits from 
a fund investment. Consult your tax advisor for more guidance. 

Terms you need to know 

Total return is the change in value of an investment from the beginning to 
the end of a period, assuming the reinvestment of all distributions. It may 
be shown at net asset value or at market price. 

Net asset value (NAV) is the value of all your fund's assets, minus any 
liabilities, the liquidation preference and cumulative unpaid dividends on 
the remarketed preferred shares, divided by the number of outstanding common 
shares. (See Note 1B on page 18.) 

Market price is the current trading price of one share of the fund. Market 
prices are set by transactions between buyers and sellers on the New York 
Stock Exchange. 

Current dividend rate is calculated by annualizing the income portion of the 
fund's most recent distribution and dividing by the NAV or market price on 
the last day of the period. 

Taxable equivalent return is the return that a taxable investment would have 
to produce to equal the fund's current return. 

Please see the fund performance supplement on page 22 for additional 
information about performance comparisons. 

<PAGE>

From the 
Chairman 

(George Putnam photo) 

George Putnam 
Chairman of the Trustees 
(C) Karsh, Ottawa 

Dear Shareholder: 

Many shareholders have been asking us whether we think the volatility that 
hit the securities markets in February and March was a prelude to further 
decline during the rest of 1994. We have been pointing out that the recent 
adjustments in the markets are a natural occurrence at this stage of the 
economic recovery. 

Some volatility will likely continue for a while as investors digest new 
realities in areas such as interest rates, inflation, and the pace of the 
recovery. But the economy is still strong, interest rates remain historically 
low, and inflation appears under control. Although there can never be 
assurance about performance, our prospects for the long term are still 
positive. 

Seasoned investors know there will occasionally be periods of rough going. 
But experience has also taught them that long-term investment programs should 
rarely be altered in response to short-term events. 

In the report that follows, Fund Manager Howard Manning discusses the 
performance of Putnam Managed Municipal Income Trust in this market 
environment. 

Respectfully yours, 

(Signature George Putnam) 

George Putnam 
June 15, 1994 

<PAGE>

Report from 
Putnam Management 

The last six months have been a very volatile period in the bond market. At 
the end of 1993, we experienced some of the lowest interest rates in recent 
history--along with extremely favorable market conditions for tax-free 
investments. The first quarter of 1994, however, was an abrupt change of 
pace. Early February brought the first in a series of short-term rate 
increases by the Federal Reserve Board, which resulted in interest rates 
generally increasing. Putnam Managed Municipal Income Trust's performance for 
six months ending on April 30, 1994 reflects the impact of the rate 
increases. The total return for common shares at NAV was -4.05% and at market 
price was -3.44%. 

Unanticipated growth spurs rate increases Responding to what it perceived as 
unexpected economic growth, the Federal Reserve Board raised short-term 
interest rates three times in the period between February and April. Because 
the Federal Reserve anticipated that economic growth could spur inflation, it 
decided to tighten the money supply, anticipating that the higher rates would 
curb inflation. 

Short-term market moves like the one we are experiencing now cannot be 
ignored, of course. Insofar as possible, we try to anticipate them and take 
appropriate defensive action when justified. But in general we tend to hold a 
longer view of your fund, one that considers underlying economic 
fundamentals, which do not necessarily drive short-term market trends. We 
also believe that every market, whether bull or bear, has the potential to 
create opportunities for your fund. 

Allocations shift in favor of high-yield bonds We are positioning the fund's 
portfolio to include a substantial position in higher-yielding bonds. These 
securities are not as sensitive to fluctuating interest rates as most 
investment grade bonds--which are highly liquid, due in part to their higher 
quality. The greater liquidity can contribute to price declines during market 
downtrends, as investors try to sell their most liquid assets first. Thus, in 
unfavorable market environments, less liquid, higher-yielding bonds may 
actually retain more of their value. Examples of higher- yielding bonds 
include health care sector bonds, industrial development bonds, and airline 
industry bonds. 

In the health care sector, we have been emphasizing hospital issues. Health 
care reform is evolving, and we believe that the market is leaning toward a 
managed-care approach, whether it is accomplished by the private sector or by 
the federal government. We generally look for securities of hospitals whose 
market position, quality of management, and financial performance have gone 
unnoticed by other investors 

<PAGE>

or are just starting to become recognized. We believe these issues hold the 
greatest potential for appreciation. 

Careful research uncovers opportunities Our credit analysis also showed that 
California bonds were undervalued in 1993 and provided a good buying 
opportunity for your fund. These bonds have already started to rebound in the 
first quarter of 1994. Airline industry bonds, particularly those at United 
and American, have also been a recent focus, as we believe they should 
respond well as the economy continues to strengthen. 

Although we don't expect any decline in the demand for tax exempt securities, 
we do anticipate a fairly dramatic decrease in issuances of municipal bonds 
over the next several months. Last year, roughly $290 billion of municipal 
bonds were issued. Of this total, $170 billion represented refunding of 
existing issues. Just as homeowners aren't as eager to refinance their 
mortgages in a rising interest rate environment, bond issuers are now much 
less willing to refinance their old debt. Consequently, we believe new bond 
issuances will be in the $150-$200 billion range in 1994. In a climate of 
rising interest rates, we expect this smaller supply to keep municipal bond 
prices from falling as quickly as those of taxable issues. It may also lead 
to a narrowing of the spread between tax-exempt and taxable securities. There 
can be no guarantee, however, that this will occur. 

Top industry sectors (4/30/94) 
(bar chart) 
Utilities                  23.5% 
Hospitals/health care      23.0% 
Transportation             14.0 
Industrial development      9.6% 
Education                   9.5% 
Housing                     5.7% 
Political subdivision  G.O. 5.3%
(general obligation) bonds   
(end of bar chart)

Outlook: Rates may continue to rise Continued strengthening of the economy 
could prompt the Federal Reserve to boost short-term interest rates once 
again. This could spark additional volatility in the municipal bond market. 
Nevertheless, our assessment of the long-term investment climate remains 
positive. Because municipal securities are among the last ways to shelter 
income from taxes, they should continue to benefit from strong demand, an 
expectation that bodes well for your fund's future long-term performance. 
Futhermore, we believe that your fund's inherent flexibility, combined with 
Putnam's credit research resources, will prove invaluable in enabling us to 
take advantage of whatever opportunities tomorrow's market may offer. 

<PAGE>

Putnam 
Managed 
Municipal 
Income 
Trust 

Semiannual Report 
For the six months ended April 30, 1994 

Report of Independent Accountants 

To the Trustees and Shareholders of 
Putnam Managed Municipal Income Trust 

We have audited the accompanying statement of assets and liabilities of 
Putnam Managed Municipal Income Trust, including the portfolio of investments 
owned, as of April 30, 1994, the related statement of operations for the six 
months then ended, the statement of changes in net assets for the six months 
ended April 30, 1994 and for the year ended October 31, 1993, and the 
"Financial Highlights" for the six months ended April 30, 1994, for each of 
the four years in the period ended October 31, 1993, and for the period 
February 24, 1989 (commencement of operations) to October 31, 1989. These 
financial statements and "Financial Highlights" are the responsibility of the 
Trust's management. Our responsibility is to express an opinion on these 
financial statements and "Financial Highlights" based on our audits. 

We conducted our audits in accordance with generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements and 
"Financial Highlights" are free of material misstatement. An audit includes 
examining, on a test basis, evidence supporting the amounts and disclosures 
in the financial statements. Our procedures included confirmation of 
securities owned as of April 30, 1994, by correspondence with the custodian 
and brokers. 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, the financial statements and "Financial Highlights" referred 
to above present fairly, in all material respects, the financial position of 
Putnam Managed Municipal Income Trust as of April 30, 1994, the results of 
its operations for the six months then ended, the changes in its net assets 
for the six months then ended and the year ended October 31, 1993, and the 
"Financial Highlights" for the six months ended April 30, 1994, for each of 
the four years in the period ended October 31, 1993, and for the period 
February 24, 1989 (commencement of operations) to October 31, 1989, in 
conformity with generally accepted accounting principles. 

Coopers & Lybrand 

Boston, Massachusetts 
June 17, 1994 

<PAGE>

Portfolio of 
investments owned 
April 30, 1994 

Municipal Bonds and Notes (100.3%)(a) 

<TABLE>
<CAPTION>
 Principal Amount                                Ratings (b)               Value 
<S>               <C>                                                <C>
Alabama (0.7%) 
   $4,450,000     Cullman Med. Park South 
                  Med. Clinic Board Rev. 
                  Rfdg. Bonds (Cullman 
                  Regl. Med. Ctr.), Ser. A, 
                  6-1/2s, 2/15/13                        Baa         $ 4,149,625 
Arizona (1.5%) 
    3,000,000     AZ Hlth. Fac. Auth. Hosp. 
                  Syst. Rev. Bonds (St. 
                  Luke's Hosp. Syst.), Ser. 
                  A, 10-1/8s, 11/1/15                     Ba           3,172,500 
    2,000,000     Gila Cnty., Indl. Dev. 
                  Auth. Poll. Control Rev. 
                  Bonds, Ser. 85, 8.9s, 
                  7/1/06                                 Baa           2,237,500 
    4,000,000     Payson, Ind. Dev. Auth. 
                  Hosp. Rev. Bonds (Payson 
                  Regional Med. Ctr. Inc. 
                  Project), 7.7s, 10/1/23                B/P           3,800,000 
                                                                       9,210,000 
California (21.5%) 
    5,000,000     CA State Hth. Facs. Fin. 
                  Insd. Rev. Bonds, 6.75s, 
                  6/1/15                                   A           5,000,000 
                  CA State Pub. Works Board 
                  Lease Rev. Bonds 
    6,220,000     (U. of CA Projects), 
                  Ser. B, 5-3/8s, 6/1/09                   A           5,714,625 
    5,000,000     (U. of CA Projects), 
                  Ser. B, 5-1/2s, 6/1/14                   A           4,493,750 
                  CA Statewide Cmntys. Dev. 
                  Auth. Certif. of 
                  Participation Rev. Bonds 
    6,800,000     (Sutter Hlth.) Municipal 
                  Bond Insurance Assoc. 
                  (MBIA), 5-1/2s, 8/15/23                AAA           5,992,500 
    5,000,000     (Childrens Hosp.), 
                  4-3/4s, 6/1/21                         AAA           3,968,750 
   $2,775,000     Corona, Certif. of 
                  Participation (Vista 
                  Hosp. Syst.), Ser. B, 
                  9-1/2s, 7/1/20                        BB/P         $ 2,899,875 
    2,760,000     Glendale, Hosp. Rev. 
                  Bonds (Verdugo Hills 
                  Hosp.), Ser. A, 10-1/8s, 
                  1/1/15                                   A           2,898,000 
    5,000,000     Los Angeles Cnty., Metro. 
                  Trans. Auth. Sales Tax 
                  Rev. Bonds, Financial 
                  Guaranty Insurance Co. 
                  (FGIC), Ser. A, 5s, 
                  7/1/21                                 AAA           4,156,250 
   28,800,000     Metro. Wtr. Dist. 
                  Southern CA Waterworks 
                  Rev Rfdg. Bonds, 6-3/4s, 
                  7/1/18                                 AAA          31,824,000 
                  Orange Cnty., Certif. of 
                  Participation (VRDN) 
   11,200,000     3.05s, 8/1/15 (Nos. 
                  1,3,5,7,11,13,14)                        A          11,200,000 
    8,000,000     (Nos. 1,2,3,6,7,11), 
                  Ser. C, FGIC, 1.7s, 
                  8/1/17                               VMIG1           8,000,000 
    7,440,000     Redding, Joint Pwrs. Fin. 
                  Auth. Solid Waste & Corp. 
                  Yard Rev. Bonds, Ser. A, 
                  5s, 1/1/18                               A           5,989,200 
    5,000,000     Sacramento Cnty., 
                  Sanitation Dist. Fin. 
                  Auth. Rev. Rfdg. Bonds, 
                  4-3/4s, 12/1/23                         AA           3,981,250 
    5,000,000     San Bernardino Cnty., 
                  Certif. of Participation 
                  (Med. Ctr. Financing 
                  Project), 5-1/2s, 8/1/24                 A           4,200,000 
                  U. of CA Rev. Rfdg. Bonds 
   15,000,000     (USCD Med. Ctr. Satellite 
                  Med. Fac.), 7.9s, 12/1/19              BBB          15,900,000 

<PAGE>

California (continued) 
  $10,000,000     American Municipal  Bond 
                  Assurance Corp, (AMBAC), 
                  (Multi. Purpose 
                  Projects), Ser. C, 5.2s, 
                  9/1/10                                 AAA        $  9,037,500 
    9,000,000     AMBAC, (Multi. Purpose 
                  Projects), Ser. C, 5s, 
                  9/1/23                                 AAA           7,402,500 
                                                                     132,658,200 
Colorado (4.6%) 
                  Denver, City & Cnty. 
                  Arpt. Rev. Bonds 
    4,000,000     Ser. A, 8-3/4s, 11/15/23               Baa           4,355,000 
    7,000,000     Ser. A, 8-1/2s, 11/15/23               Baa           7,481,250 
    8,050,000     Ser. D, 7-3/4s, 11/15/21               Baa           8,180,813 
    6,500,000     (United Air Lines 
                  Project), Ser. A, 6-7/8s, 
                  10/1/32                                Baa           6,020,625 
    2,500,000     Ser. C, 6-3/4s, 11/15/13               Baa           2,300,450 
                                                                      28,338,138 
Florida (6.4%) 
    5,000,000     Hernando Cnty., Indl. 
                  Dev. Rev. Bonds (FL 
                  Crushed Stone Co.), 
                  8-1/2s, 12/1/14                        B/P           5,181,250 
    2,000,000     Hillsborough Cnty., 
                  Aviation Auth. Special 
                  Purpose Rev. Bonds, 
                  (USAir Project), 8.6s, 
                  1/15/22                                 Ba           2,010,000 
    7,900,000     Lee Cnty., Hosp. Board of 
                  Directors Hosp. RIBS (Lee 
                  Memorial Hosp.), MBIA, 
                  9.219s, 3/26/20                        Aaa           8,117,250 
    3,000,000     Miami, Hlth. Facs. Auth. 
                  Rev. Bonds (Cedars Med. 
                  Ctr.), Ser. A, 8.3s, 
                  10/1/07                              AAA/P           3,378,750 
                  Palm Beach Cnty., Hlth. 
                  Fac. Auth. Rev. Bonds 
   $1,585,000     Rfdg.(JFK Med. Ctr. Inc. 
                  Project), 8-7/8s, 12/1/18              BBB        $  1,860,394 
    1,380,000     (JFK Med. Ctr. Inc. 
                  Project), 8-7/8s, 12/1/18              BBB           1,528,350 
   16,350,000     Tampa, Cap. Impt. Rev. 
                  Bonds, Ser. B, 8-3/8s, 
                  10/1/18                                BBB          17,576,250 
                                                                      39,652,244 
Georgia (0.6%) 
    3,250,000     Gwinnett Cnty., Indl. 
                  Dev. Auth. Rev. Bonds 
                  (Kawneer Co. Inc. 
                  Project), Ser. 84, 
                  9-1/2s, 6/1/15                       BBB/P           3,485,625 
Illinois (3.1%) 
    5,000,000     Chicago, O'Hare Intl. 
                  Arpt. Rev. Bonds, Ser. B, 
                  10-3/8s, 1/1/09                          A           5,331,250 
                  Chicago, O'Hare Intl. 
                  Arpt. Special Fac. Fac. 
                  Rev. Bond, (United 
                  Airlines Inc.), 
    5,608,000     Ser. B, 8.95s, 5/1/18                  Baa           6,217,870 
    3,375,000     Ser. 84A, 8.85s, 5/1/18                Baa           3,758,906 
    1,925,000     Ser. 84B, 8.85s, 5/1/18                Baa           2,143,969 
    2,500,000     IL Dev. Fin. Auth. 
                  Retirement Hsg. Rev. 
                  Bonds (Regency 
                  Park-Lincolnwood), Ser. 
                  A, 10-1/4s, 4/15/19 (d)                B/P           1,750,000 
                                                                      19,201,995 
Iowa (0.9%) 
                  IA Fin. Auth. Hlth. Care 
                  Fac. Rev. Bonds (Mercy 
                  Hlth. Initatives 
                  Projects), 
    3,000,000     9.95s, 7/1/19                         BB/P           3,093,750 
    2,350,000     9.85s, 7/1/09                         BB/P           2,420,500 
                                                                       5,514,250 

<PAGE>

Kansas (2.8%) 
   $7,500,000     Burlington, Poll. Control 
                  RIBS (Kansas Gas & 
                  Electric), Ser. 91-4, 
                  MBIA, 10.842s, 6/1/31                  AAA         $ 8,400,000 
    8,400,000     Witchita, Hosp. RIBS, 
                  Ser. III-A, MBIA, 10.32s, 
                  10/1/17                                AAA           8,694,000 
                                                                      17,094,000 
Louisiana (3.5%) 
    5,000,000     Hodge, Combined Util. 
                  Rev. Bonds (Stone 
                  Container Corp.), 9s, 
                  3/1/10                                 B/P           5,137,500 
                  Port of New Orleans, 
                  Indl. Dev. Rev. Bonds 
                  (Continental Grain Co. 
                  Project), 
    4,000,000     Ser. A, 14-1/2s, 2/1/02                 BB           4,640,000 
    3,500,000     14-1/2s, 1/1/02                         BB           4,060,000 
                  West Feliciana Parish, 
                  Poll. Control Rev. Bonds 
                  (Gulf States Util. Co, 
                  Project) 
    2,000,000     Ser. C, 12s, 5/1/14                    Baa           2,135,000 
    5,500,000     Ser. A, 10-5/8s, 5/1/14                 AA           5,864,375 
                                                                      21,836,875 
Maine (0.5%) 
    3,000,000     ME Fin. Auth. Solid Waste 
                  Recycling Facs. Rev. 
                  Bonds (Great Northern 
                  Paper Project), 7-3/4s, 
                  10/1/22                                Baa           3,187,500 
Maryland (0.8%) 
    4,000,000     MD State Hlth. & Higher 
                  Edl. Facs. Auth. Rev. 
                  Bonds (Doctors Cmnty. 
                  Hosp.), 8-3/4s, 7/1/12                 BBB           4,815,000 
Massachusetts (2.1%) 
   $2,000,000     MA State Indl. Fin. Agcy. 
                  1st. Mtge. Rev. Bonds 
                  (Pioneer Valley Living 
                  Ctr.), 7s, 10/1/20                     B/P         $ 1,882,500 
    5,000,000     MA State Indl. Fin. Agcy. 
                  Resource Recvy. Rev. 
                  Bonds (Southeastern MA 
                  Project), Ser. B, 9-1/4s, 
                  7/1/15                                  BB           5,612,500 
                  MA State Indl. Fin. Agcy. 
                  Rev. Bonds 
    2,000,000     (Orchard Cove Inc.), 9s, 
                  5/1/22                                BB/P           2,240,000 
    1,323,784     (Pioneer Valley Living 
                  Ctr.), 10s, 10/1/20 (d)                  B               1,655 
    2,925,000     MA State Indl. Fin. Agcy. 
                  Tunnel Rev. Bonds (MA 
                  Tpk.), 9s, 10/1/20                    BB/P           2,976,188 
                                                                      12,712,843 
Michigan (6.0%) 
    5,000,000     Detroit, Dev. Fin. Auth. 
                  Tax Increment Rev. Bonds 
                  Ser. A, 9.5s, 5/1/21                 BBB/P           6,181,250 
    4,780,000     Highland Park, Hosp. Fin. 
                  Auth. Fac. Rev. Bonds (MI 
                  Hlth. Care Corp. 
                  Project), Ser. A, 9-7/8s, 
                  12/1/19                                  B           5,030,950 
                  MI State Hosp. Fin. Auth. 
                  Rev. Rfdg. Bonds 
                  (Detroit-Macomb Hosp. 
                  Corp.) 
    3,035,000     Ser. A, 7.4s, 6/1/13                     B           2,947,744 
    4,800,000     Ser. A, 7.3s, 6/1/01                     B           4,752,000 
                  MI State Strategic Fund 
                  Ltd. Oblig. Rev. Bonds 
    4,000,000     (Blue Water Fiber 
                  Project), 8s, 1/1/12                     B           3,920,000 
    7,000,000     (Environmental Research 
                  Project), 8-1/8s, 10/1/14                A           7,490,000 

<PAGE>

Michigan (continued) 
   $4,000,000     Midland Cnty., Econ. Dev. 
                  Corp. Poll. Control Rev. 
                  Bonds Ser. B, 9-1/2s, 
                  7/23/09                                  B         $ 4,415,000 
    2,150,000     Wayne Charter Cnty., 
                  Special Arpt. Fac. Rev. 
                  Bonds 
                  (Republic Airlines Inc. 
                  Project), Ser. C, 
                  10-3/8s, 12/1/15                         B           2,305,875 
                                                                      37,042,819 
Minnesota (1.0%) 
    2,000,000     Chaska, Indl. Dev. Rev. 
                  Bonds 
                  (Lifecore Biomedical Inc. 
                  Project), 10-1/4s, 9/1/20               BB           2,300,000 
    4,000,000     St. Paul, Hsg. & Redev. 
                  Auth. Rev. Bonds (Hosp. 
                  Crossover Healtheast 
                  Project), 
                  Ser. A, 6-5/8s, 11/1/17                Baa           3,780,000 
                                                                       6,080,000 
Mississippi (1.2%) 
                  Claiborne Cnty., Poll. 
                  Control Rev. Bonds 
                  (Middle South Energy, 
                  Inc.) 
    2,500,000     Ser. C, 9-7/8s, 12/1/14              BBB/P           2,884,375 
    4,100,000     Ser. A, 9-1/2s, 12/1/13              BBB/P           4,674,000 
                                                                       7,558,375 
Missouri (0.7%) 
    4,000,000     Kansas City, Indl. Dev. 
                  Auth. Hlth. Fac. Rev. 
                  Bonds (Park Lane Med. 
                  Ctr. Project), 8-3/4s, 
                  1/1/15                               BBB/P           4,350,000 
Nebraska (1.7%) 
   $1,600,000     NE Investment Fin. Auth. 
                  Single Fam. Mtge. Rev. 
                  Bonds, 
                  Ser. B, GNMA Coll. 
                  9.452s, 3/15/22                        AAA         $ 1,768,000 
    8,005,000     NE Investment Fin. Auth. 
                  Single Fam. Mtge. 
                  RIBS, 1st. Ser., GNMA 
                  Coll., MBIA, 8-1/8s, 
                  8/15/38                                AAA           8,415,256 
                                                                      10,183,256 
Nevada (1.5%) 
                  Clark Cnty., Indl. Dev. 
                  Rev. Bonds 
    4,000,000     (NV Pwr. Co. Project), 
                  7.8s, 6/1/20                           Baa           4,280,000 
    4,850,000     (Southwest Gas Corp.), 
                  Ser. B, 7-1/2s, 9/1/32                  Ba           5,025,813 
                                                                       9,305,813 
New Hampshire (1.3%) 
                  NH Higher Edl. & Hlth. 
                  Fac. Auth. Rev. Bonds 
    2,260,000     (Alice Peck Day Memorial 
                  Hosp. Project), 9-3/8s, 
                  11/1/20                              BBB/P           2,333,450 
    3,000,000     (Mary Hitchcock Mem. 
                  Hosp.), FGIC, 5-3/4s, 
                  8/15/23 (c)                            AAA           2,756,250 
    2,800,000     NH State Indl. Dev. Auth. 
                  Poll. Control Rev. Bonds 
                  (United Illuminating 
                  Co.), Ser. B, 10-3/4s, 
                  10/1/12                                Baa           3,279,500 
                                                                       8,369,200 
New Jersey (3.4%) 
    3,000,000     NJ Econ. Dev. Auth. Elec. 
                  Energy Fac. Rev. Bonds 
                  (Vineland Cogeneration 
                  L.P. Project), 7-7/8s, 
                  6/1/19                                BB/P           3,180,000 

<PAGE>

New Jersey (continued) 
   $2,000,000     NJ Econ. Dev. Auth. Rev. 
                  Bonds 
                  (Tevco Inc. Project), 
                  8-1/8s, 10/1/09                      A/P           $ 2,155,000 
                  NJ Hlth. Care Fac. Fin. 
                  Auth. Rev. Bonds 
    4,680,000     (Mountainside Hosp.), 
                  Ser. A, 9s, 8/1/25                    AA             5,066,100 
    5,000,000     (St. Elizabeth Hosp.), 
                  Ser. B, 8-1/4s, 7/1/20               Baa             5,343,750 
    5,000,000     Union Cnty., Utils. Auth. 
                  Solid Waste Rev. Bonds, 
                  Ser. A, 7.2s, 6/15/14                  A             5,131,250 
                                                                      20,876,100 
New York (7.4%) 
    7,000,000     NY City G.O. VRDN 
                  2.95s, 8/15/23                         A             7,000,000 
                  NY City, G.O. Bonds 
    7,000,000     Ser. F, 8-1/4s, 11/15/10               A             8,058,750 
    4,925,000     Ser. D, 8s, 8/1/01                   Aaa             5,805,344 
   12,000,000     Ser. B, 7-1/2s, 2/1/04                 A            13,095,000 
    5,000,000     Ser. C, 7s, 2/1/12                     A             5,225,000 
    6,000,000     Ser. H, 7s, 2/1/07                     A             6,322,500 
                                                                      45,506,594 
North Dakota (0.3%) 
    1,930,000     ND State Hsg. Fin. Agcy. 
                  Single Fam. Mtge. Rev. 
                  Bonds 
                  Ser. A, 8-3/8s, 7/1/21                Aa             2,038,563 
Ohio (4.2%) 
    1,950,000     Dayton, Special Fac. Rev. 
                  Bonds (Emery Air Freight 
                  Corp.), Ser. A, 12-1/2s, 
                  10/1/09                              B/P             2,269,313 
      965,000     Hamilton Cnty., Indl. 
                  Dev. Rev. Bonds 
                  (Provident Assn. 
                  Participation), 9s, 
                  12/1/08 (d)                          D/P               386,000 
Ohio (continued) 
  $20,000,000     OH State Air Quality Dev. 
                  Auth. Poll. Control Rev. 
                  Bonds (Cleveland Co. 
                  Project), FGIC, 8s, 
                  12/1/13                              AAA           $23,150,000 
                                                                      25,805,313 
Oklahoma (2.2%) 
    3,000,000     Oklahoma Cnty., Indl. 
                  Auth. Rev. Bonds (Epworth 
                  Villa Project), Ser. A, 
                  10-1/4s, 4/1/19                     BB/P             3,183,750 
   10,000,000     Tulsa, Muni. Arpt. Trust 
                  Rev. Bonds (American 
                  Airlines Corp.), 7.6s, 
                  12/1/30                              Baa            10,212,500 
                                                                      13,396,250 
Pennsylvania (3.2%) 
    4,000,000     Allegheny Cnty., Indl. 
                  Dev. Auth. Arpt. Special 
                  Facs. Rev. Bonds (USAir 
                  Inc. Project), 
                  Ser. B, 8-1/2s, 3/1/21                Ba             3,920,000 
    4,000,000     Geisinger, Auth. Hlth. 
                  Syst. Rev. Bonds, Ser. A, 
                  5.45s, 7/1/22                         AA             3,940,000 
    6,000,000     PA State Higher Ed. 
                  Assistance Agcy. Student 
                  Loan RIBS, Ser. B, MBIA, 
                  8.253s, 3/1/20                       AAA             6,675,000 
                  Philadelphia, Wtr. & Swr 
                  Rev. Bonds, FGIC 
    4,000,000     5.2s, 6/15/05                        AAA             3,760,000 
    4,000,000     4.8s, 6/15/05                        AAA             1,640,000 
                                                                      19,935,000 
Puerto Rico (1.0%) 
    6,245,000     Puerto Rico Elec. Pwr. 
                  Auth. Rev. Bonds, 6s, 
                  7/1/16                                 A             6,018,619 

<PAGE>

South Carolina (0.9%) 
   $5,000,000     SC State Hsg. Fin. & Dev. 
                  Auth. Multi-Fam. Mtge. 
                  Rev. Bonds, 
                  8-1/2s, 10/1/21                        BBB         $ 5,512,500 
Tennessee (1.5%) 
    8,840,000     Metro. Nashville & 
                  Davidson Cnty., Hlth. & 
                  Ed. Fac. Board Rev. Bonds 
                  (Vanderbilt U.), Ser. A, 
                  10-1/2s, 12/1/14                         A           9,348,300 
Texas (8.6%) 
    2,750,000     Amarillo, Hlth. Fac. 
                  Hosp. Corp. RIBS (High 
                  Plains Baptist Hosp.), 
                  9.672s, 1/3/22                         AAA           2,822,188 
                  Bexar Cnty., Hlth. Fac. 
                  Dev. Corp. Rev. Bonds 
    3,200,000     (Heartway Corp.), Ser. 
                  A-1, 10-1/4s, 3/1/19                   B/P           3,432,000 
    3,200,000     (St. Lukes Lutheran Hosp. 
                  Project), 7.9s, 5/1/11                 Baa           3,384,000 
    7,250,000     Brazos River, Poll. 
                  Control Auth. Rev. Bonds 
                  (TX Utils. Elec. Co. 
                  Project), Ser. A, 7-7/8s, 
                  3/1/21                                 Baa           7,784,688 
   11,500,000     Dallas-Fort Worth, Intl. 
                  Arpt. Fac. Impt. Corp. 
                  Rev. Bonds (American 
                  Airlines Inc.), 7-1/2s, 
                  11/1/25                                Baa          11,686,875 
    1,154,831     Harris Cnty., Indl. Dev. 
                  Corp. Arpt. Facs. Rev. 
                  Bonds (Continental 
                  Airlines Inc.), 7.95s, 
                  7/1/19                                 B/P           1,094,202 
                  Houston, Hsg. Fin. Corp. 
                  Single Fam. Mtge. Rev. 
                  Bonds 
    2,841,000     Ser. A, 10-7/8s, 2/15/16               Baa           2,926,230 
   $2,240,000     (Lomas & Nettleton 
                  Administration Co.), Ser. 
                  B, 10-3/8s, 12/15/13                   Baa         $ 2,290,400 
    3,825,000     North Central Hlth. Fac. 
                  Dev. Corp. Rev. Bonds (U. 
                  Med. Ctr. Inc. Project), 
                  7-3/4s, 4/1/17                        AA/P           3,920,625 
                  Southeast TX Hsg. Fin. 
                  Corp. Multi-Fam. RIBS 
    3,000,000      (Bayou Park Village Apt. 
                  Project), Ser. B, 
                  10.175s, 8/1/16                        B/P           3,041,250 
    5,000,000     (Pavilion Place Apts. 
                  Project), Ser. A, 7.6s, 
                  7/1/16                               BBB/P           5,062,500 
    2,500,000     Southeast TX Hsg. Fin. 
                  Corp. Multi-Fam. Rev. 
                  Bonds 
                  (Promenade Place Apts. 
                  Project), Ser. B, 9-1/2s, 
                  8/1/16                                 B/P           2,509,375 
    3,000,000     Tarrant Cnty., Hlth. 
                  Facs. Dev. Corp. Hosp. 
                  Rev. Bonds (Cmnty. Hlth. 
                  Care Foundation Inc. 
                  Project), 10-1/8s, 4/1/21              B/P           3,157,500 
                                                                      53,111,833 
Virginia (1.7%) 
    5,400,000     Fredericksburg, Indl. 
                  Dev. Auth. Hosp. Facs. 
                  Inverse Rate Floaters, 
                  FGIC, 8.354s, 8/15/23                  AAA           5,670,000 
    5,000,000     Winchester, Indl. Dev. 
                  Auth. Hosp. Inverse Rate 
                  Floaters, AMBAC, 5.534s, 
                  1/1/15                                 AAA           4,718,750 
                                                                      10,388,750 

<PAGE>

Washington (2.9%) 
                  WA State Pub. Pwr. Supply 
                  Syst. Rev. Bonds (Nuclear 
                  Project No. 1) 
   $9,685,000     Ser. A, 7-1/2s, 7/1/15                  AA        $ 10,871,408 
    6,315,000     Ser. A, 7-1/2s, 7/1/15                  AA           6,772,838 
                                                                      17,644,246 
West Virginia (0.6%) 
    4,000,000     Marion Cnty., Cmnty. 
                  Solid Waste Disp. Fac. 
                  Rev. Bonds (American Pwr. 
                  Paper Recycling Project), 
                  8-1/4s, 12/1/11 (c)                    B/P           4,005,000 
                  Total Investments 
                  (cost $603,163,250)(e)                            $618,332,826 
</TABLE>
(a)Percentages indicated are based on net assets of $616,737,297. Net assets 
available to common shareholders are $441,574,763, which corresponds to a net 
asset value per common share of $9.98. 
(b)The Moody's or Standard & Poor's ratings indicated are believed to be the 
most recent ratings available at April 30, 1994, for the securities listed. 
Ratings are generally ascribed to securities at the time of issuance. While 
the agencies may from time to time revise such ratings, they undertake no 
obligation to do so, and the ratings do not necessarily represent what the 
agencies would ascribe to these securities at April 30, 1994. Securities 
rated by Putnam are indicated by "/P" and are not publicly rated. Ratings are 
not covered by the Report of Independent Accountants. 
(c)These Securities, valued at $6,761,250 or 1.1% of the Fund's net assets, 
have been purchased on a "forward commitment" basis--that is, the Fund has 
agreed to take delivery of and make payment for these securities beyond the 
settlement time of five business days after the trade date and subsequent to 
the date of this report. The purchase price and interest rate of these 
securities are fixed at the trade date, although the Fund does not earn any 
interest on these securities until the settlement date. 
(d)Non-income-producing security. 
(e)The aggregate identified cost on a tax basis is $603,203,393, resulting in 
gross unrealized appreciation and depreciation of $28,596,644 and 
$13,467,211, respectively, or net unrealized appreciation of $15,129,433. 
The rates shown on Variable Rate Demand Notes (VRDN) and Residual Interest 
Bonds (RIBS) are the current interest rates at April 30, 1994, which are 
subject to change based on the terms of the security. 

The Fund had the following industry group concentrations greater than 10% on 
April 30, 1994 (as a percentage of net assets): 
Utilities 23.5% 
Hospitals/Health Care 23.0 
Transportation 14.0 

The table below shows the percentage of the Fund's investments at April 30, 
1994 assigned to the various rating categories by Moody's and Standard and 
Poor's and in unrated securities determined by Putnam Management to be of 
comparable quality. 

<TABLE>
<CAPTION>
                                      Unrated securities of 
                  Rated securities      comparable quality, 
                  as percentage of         as percentage of 
Rating           Fund's Net assets        Fund's net assets 
<S>                           <C>                       <C>
"AAA"/"Aaa"                   25.1%                     0.5% 
"AA"/"Aa"                      6.2                      0.6 
"A"/"A"                       17.4                      0.3 
"BBB"/"Baa"                   25.8                      4.7 
"BB"/"Ba"                      5.0                      3.2 
"B"/"B"                        3.8                      6.0 
"D"/"D"                       --                        0.1 
VMIG1                         --                        1.3 
</TABLE>
U.S. Treasury Bond Futures Outstanding 
at April 30, 1994 

<TABLE>
<CAPTION>
                                Aggregate 
Number of               Total        Face  Expiration      Unrealized 
Contracts               Value       Value        Date    Appreciation 
<S>                <C>         <C>             <C>           <C>
50 US Treasury 
  Bond 
  Futures 
  (Sell)           $5,225,000  $5,285,937      Jun/94         $60,937 
</TABLE>

<PAGE>

Statement of 
assets and liabilities 
April 30, 1994 

<TABLE>
<S>                   <S>                                                               <C>              <C>
Assets                Investments in securities, at value (identified cost $603,163,250) (Note 1)        $618,332,826 
                      Cash                                                                                 10,098,069 
                      Interest and other receivables                                                       13,458,614 
                      Receivable for variation margins on futures                                              12,500 
                        Total assets                                                                      641,902,009 
Liabilities           Distributions payable to shareholders                             $ 2,808,396 
                      Payable for securities purchased                                   21,230,011 
                      Payable for compensation of Manager (Note 3)                        1,028,532 
                      Payable for administrative services (Note 3)                            4,655 
                      Payable for investor servicing and custodian fees (Note 3)             82,525 
                      Other accrued expenses                                                 10,593 
                        Total liabilities                                                                  25,164,712 
                      Net assets                                                                         $616,737,297 
Represented by        Series A, B, and C remarketed preferred shares, without par value; 
                         8,000 shares authorized (1,750 shares issued at $100,000 per share 
                         liquidation preference) (Note 2)                                                $175,000,000 
                      Common shares, without par value; unlimited, shares authorized 44,226,908 
                         shares outstanding                                                               407,593,538 
                      Undistributed net investment income                                                  17,345,863 
                      Accumulated net realized gain on investments                                          1,567,384 
                      Net unrealized appreciation of investments                                           15,230,512 
                      Net assets                                                                         $616,737,297 
Computation of        Remarketed preferred shares at liquidation preference                              $175,000,000 
net asset value       Cumulative undeclared dividends on remarketed preferred shares                          162,534 
                      Net assets allocated to remarketed preferred shares at liquidation preference       175,162,534 
                      Net assets available to common shares: Net asset value per share $9.98 
                         ($441,574,763 divided by 44,226,908 shares)                                      441,574,763 
                      Net assets                                                                         $616,737,297 
</TABLE>

<PAGE>

Statement of 
operations 
Six months ended April 30, 1994 
<TABLE>
               <S>                                                            <C>             <C>
               Tax exempt interest income                                                     $ 23,838,483 
               Expenses: 
               Compensation of Manager (Note 3)                               $2,126,496 
               Investor servicing and custodian fees (Note 3)                    227,823 
               Compensation of Trustees (Note 3)                                  10,395 
               Auditing                                                           25,563 
               Reports to shareholders                                            23,248 
               Legal                                                               6,954 
               Postage                                                            10,974 
               Administrative services (Note 3)                                    6,872 
               Exchange listing fees                                              18,923 
               Amortization of organization expenses (Note 1)                      2,705 
               Preferred share remarketing agent fees                            229,884 
               Other                                                              19,259 
                 Total expenses                                                                  2,709,096 
               Net investment income                                                            21,129,387 
               Net realized gain on investments (Notes 1 and 4)                                  1,302,513 
               Net realized gain on futures contracts (Notes 1 and 4)                              388,070 
               Net unrealized depreciation of investments during the 
                 period                                                                        (39,169,058) 
               Net loss on investments                                                         (37,478,475) 
               Net decrease in net assets resulting from operations                           $(16,349,088) 

</TABLE>

<PAGE>

Statement of 
changes in net assets 

<TABLE>
<CAPTION>
                                                                                         Six months ended         Year ended 
                                                                                                 April 30         October 31 
                                                                                                     1994               1993 
<S>                         <S>                                                              <C>                <C>   
Increase (decrease)         Operations: 
in net assets               Net investment income                                            $ 21,129,387       $ 42,995,265 
                            Net realized gain on investments                                    1,302,513          4,171,187 
                            Net realized gain (loss) on futures contracts                         388,070            (80,733) 
                            Net unrealized appreciation (depreciation) of 
                            investments                                                       (39,169,058)        40,690,659 
                            Net increase (decrease) in assets resulting from 
                            operations                                                        (16,349,088)        87,776,378 
                            Distributions to remarketed preferred shareholders from 
                            net investment income                                              (2,116,306)        (4,480,767) 
                            Net increase (decrease) in assets resulting from 
                            operations applicable to common shareholders (excluding 
                            cumulative undeclared dividends on remarketed preferred 
                            shares of $162,534 and $161,821, respectively)                    (18,465,394)        83,295,611 
                             Distributions to common shareholders from: 
                              net investment income                                           (16,801,392)       (33,293,276) 
                              net realized gain on investments                                 (4,091,847)        (3,434,385) 
                             Increase from capital share transactions, common 
                             shares                                                             3,274,060          5,405,135 
                            Total increase (decrease) in net assets                           (36,084,573)        51,973,085 
Net assets                  Beginning of period                                               652,821,870        600,848,785 
                            End of period (including undistributed net investment 
                            income of $17,345,863 and $15,145,211, respectively)             $616,737,297       $652,821,870 
Number of fund shares       Common shares outstanding at beginning of period                   43,918,097         43,395,575 
                            Common shares issued in connection with reinvestment of 
                            distributions                                                         308,811            522,522 
                            Common shares outstanding at end of period                         44,226,908         43,918,097 
                            Remarketed preferred shares outstanding at end of period                1,750              1,750 
</TABLE>

Financial Highlights 
(For a share outstanding throughout the period) 

<TABLE>
<CAPTION>
                                                                                                          For the period 
                                                                                                       February 24, 1989 
                                                 Six months                                                (commencement 
                                                      ended                                            of operations) to 
                                                   April 30                   Year ended October 31           October 31 
Common Shares                                          1994      1993      1992      1991      1990                 1989 
<S>                                                  <C>       <C>       <C>       <C>       <C>                 <C>
Net Asset Value, Beginning of Period                 $10.88    $ 9.81    $ 9.44    $ 8.94    $ 9.31              $  9.30 
Investment Operations: 
Net Investment Income                                   .48       .98      1.01      1.02      1.02                  .54 
Net Realized and Unrealized Gain (Loss) on 
  Investments                                          (.86)     1.04       .26       .44      (.35)              --* 
Total from Investment Operations                       (.38)     2.02      1.27      1.46       .67                  .54 
Less Distributions from: 
Net Investment Income 
  to Preferred Shareholders                            (.05)     (.11)     (.14)     (.20)     (.25)                (.02) 
 to Common Shareholders                                (.38)     (.76)     (.76)     (.76)     (.76)                (.47) 
Net Realized Gain on Investments 
 to Preferred Shareholders                            --        --        --        --        --                   -- 
 to Common Shareholders                                (.09)     (.08)    --        --         (.02)               -- 
Total Distributions                                   (0.52)     (.95)     (.90)     (.96)    (1.03)                (.49) 
Change in Cumulative Undeclared Dividends on 
  Remarketed Preferred Shares                         --        --        --        --        --                    (.01) 
Initial Offering Expenses                             --        --        --        --         (.01)                (.03) 
Net Asset Value, End of Period                       $ 9.98    $10.88    $ 9.81    $ 9.44    $ 8.94              $  9.31 
Market Value End of Period (common shares)           $10.50    $11.38    $ 9.88    $10.00    $ 8.88              $  9.50 
Total Investment Return at Market Value 
  (common shares) (%)                                 (3.44)(c) 24.84      6.72     22.33      1.72                 (.25)(a) 
Net Assets, End of Period 
  (Total Fund) 
  (in thousands)                                   $616,737  $652,660  $600,849  $580,495  $555,583             $567,749 
Ratio of Expenses to Average Net Assets (%) 
  (b)                                                  1.17(a)   1.22      1.24      1.33      1.29                  .91(a) 
Ratio of Net Investment Income to Average Net 
  Assets (%)(b)                                        8.23(a)   8.44      8.94      8.92      8.39                 8.72(a) 
Portfolio Turnover Rate (%)                           18.56(c)  35.16     67.72     49.62     41.48               107.11(c) 
</TABLE>
* The amount shown in this caption, while mathematically determinable by the 
summation of amounts computed daily is also the balancing figure derived from 
the other figures in the statement and has been so computed. 
(a) Annualized. 
(b) Ratios reflect net assets available to common shares only; net investment 
income ratio also reflects reduction for dividend payments to preferred 
shareholders. 
(c) Not annualized. 

<PAGE>

Notes to 
financial statements 
April 30, 1994 

Note 1 Significant accounting policies 

The Fund is registered under the Investment Company Act of 1940, as amended, 
as a diversified, closed-end management investment company. The Fund's 
investment objective is to seek a high level of current income exempt from 
federal income tax. The Fund intends to achieve its objective by investing in 
a diversified portfolio of tax-exempt municipal securities which Putnam 
believes does not involve undue risk to income or principal. Up to 50% of the 
Fund's assets may consist of high-yield tax-exempt municipal securities that 
are below investment grade and involve special risk considerations. The Fund 
also uses leverage by issuing preferred shares in an effort to increase the 
income to the common shares. 

The following is a summary of significant accounting policies consistently 
followed by the Fund in the preparation of its financial statements. The 
policies are in conformity with generally accepted accounting principles. 

A) Security valuation Tax-exempt bonds and notes are stated on the basis of 
valuations provided by a pricing service, approved by the Trustees, which 
uses information with respect to transactions in bonds, quotations from bond 
dealers, market transactions in comparable securities and various 
relationships between securities in determining value. The fair value of 
restricted securities is determined by the Manager following procedures 
approved by the Trustees, and such valuations and procedures are reviewed 
periodically by Trustees. 

B) Determination of net asset value Net asset value of the common shares is 
determined by dividing the value of all assets of the Fund (including accrued 
interest and dividends), less all liabilities (including accrued expenses), 
and the liquidation value and cumulative unpaid dividends of any outstanding 
remarketed preferred shares, by the total number of common shares 
outstanding. 

C) Futures contracts A futures contract is an agreement between two parties 
to buy or sell a security at a set price on a future date. Upon entering into 
such a contract the Fund is required to pledge to the broker an amount of 
cash or securities equal to the minimum "initial margin" requirements of the 
exchange. Pursuant to the contract, the Fund agrees to receive from or pay to 
the broker an amount of cash equal to the daily fluctuation in value of the 
contract. Such receipts or payments are known as "variation margin," and are 
recorded by the Fund as unrealized gains or losses. When the contract is 
closed, the Fund records a realized gain or loss equal to the difference 
between the value of the contract at the time it was opened and the value at 
the time it was closed. The potential risk to the Fund is that the change in 
value of the underlying securities may not correspond to the change in value 
of the futures contracts. 

D) Security transactions and related investment income Security transactions 
are accounted for on the trade date (date the order to buy or sell is 
executed). Interest income is recorded on the accrual basis. 

E) Federal taxes It is the policy of the Fund to distribute all of its income 
within the prescribed time and otherwise comply with the provisions of the 
Internal Revenue Code applicable to regulated investment companies. It is 
also the intention of the Fund to distribute an amount sufficient to avoid 
imposition of any excise tax under Section 4982 of the Internal Revenue Code 
of 1986. Therefore, no provision has been made for federal taxes on income, 
capital gains or unrealized appreciation of securities held and excise tax on 
income and capital gains. 

F) Distributions to shareholders Distributions to common and preferred 
shareholders are recorded by the Fund on the ex-dividend date. Dividends on 
each share of remarketed preferred shares will accumulate from its Date of 
Original Issue and will be payable, when, as and if declared by the Board of 
Trustees, on the applicable Dividend Payment Dates. The dividend period for 
Series A and B is a 28-day period, and the dividend period for Series C is a 
7-day period. The applicable dividend rates for the remarketed preferred 
shares on April 30, 1994 were: Series A-- 2.54%; Series B--2.69%; Series 
C--3.125%. 

G) Amortization of bond premium and discount Any premium resulting from the 
purchase of securities in excess of maturity value is amortized on a 
yield-to-maturity basis. Discount on zero-coupon bonds, original issued 
discount bonds and step-up bonds is accreted according to the effective yield 
method. 

H) Unamortized organization expenses Expenses incurred by the Fund in 
connection with its organization aggregated $44,495. These expenses are being 
amortized on a straight-line basis over a five-year period. 

<PAGE>

Note 2 Remarketed Preferred Shares 

On September 28, 1989 the Fund issued 550 shares Series A Remarketed 
Preferred (RP), 550 shares Series B RP and 650 shares Series C RP 
(collectively, the "Original RP"). The Original RP Shares are redeemable at 
the option of the Fund on any dividend payment date at a redemption price of 
$100,000 per share, plus an amount equal to any dividends accumulated on a 
daily basis but unpaid through the redemption date (whether or not such 
dividends have been declared) and, in certain circumstances, a call premium. 

It is anticipated that dividends paid to holders of remarketed preferred 
shares will be considered tax-exempt dividends under the Internal Revenue 
Code of 1986, as amended. To the extent that the Fund earns taxable income 
and capital gains by the conclusion of a fiscal year, it will be required to 
apportion to the holders of the remarketed preferred shares throughout that 
year additional dividends as necessary to result in an after-tax yield 
equivalent to the applicable dividend rate for the period. For six months 
ended April 30, 1994, the Fund has earned no such taxable income or gains. 

Under the Investment Company Act of 1940, the Fund is required to maintain 
asset coverage of at least 200% with respect to the remarketed preferred 
shares as of the last business day of each month in which any such shares are 
outstanding. Additionally, the Fund is required to meet more stringent asset 
coverage requirements under the terms of the remarketed preferred shares and 
the shares' rating agencies. Should these requirements not be met, or should 
dividends accrued on the remarketed preferred shares not be paid, the Fund 
may be restricted in its ability to declare dividends to common shareholders 
or may be required to redeem certain of the remarketed preferred shares. At 
April 30, 1994, no such restrictions have been placed on the Fund. 

Note 3 Management fee, administrative services, and other transactions 

Compensation of Putnam Management, for management and investment advisory 
services, is paid quarterly based on the average net assets of the Fund, 
including proceeds from the remarketed preferred offering. Such fee is based 
on the annual rate of 0.70% of the first $500 million, 0.60% of the next $500 
million, 0.55% of the next $500 million and 0.50% of any amount over $1.5 
billion. 

If dividends payable on remarketed preferred shares during any dividend 
payment period plus any expenses attributable to remarketed preferred shares 
for that period exceed the Fund's net income attributable to the proceeds of 
the remarketed preferred shares during that period, then the fee payable to 
Putnam for that period will be reduced by the amount of the excess (but not 
more than .70% of the liquidation preference of the remarketed preferred 
shares outstanding during the period). 

The Fund also reimburses the Manager for the compensation and related 
expenses of certain officers of the Fund and their staff who provide 
administrative services to the Fund. The aggregate amount of all such 
reimbursements is determined annually by the Trustees. For six months ended 
April 30, 1994, the Fund paid $ 6,872 for these services. 

Trustees of the Fund receive an annual Trustee's fee of $1,320 and an 
additional fee for each Trustees' meeting attended. Trustees who are not 
interested persons of the Manager and who serve on committees of the Trustees 
receive additional fees for attendance at certain committee meetings. 

Custodial functions for the Fund are provided by Putnam Fiduciary Trust 
Company (PFTC), a subsidiary of Putnam Investments, Inc. Investor servicing 
agent functions are currently provided by Putnam Investor Services, a 
division of PFTC. Fees paid for these investor servicing and custodial 
functions for six months ended April 30, 1994, amounted to $227,823. 

Investor servicing and custodian fees reported in the Statement of operations 
for six months ended April 30, 1994, have been reduced by credit allowed by 
PFTC. 

<PAGE>

Note 4 Purchases and sales of securities 

During six months ended April 30, 1994, purchases and sales of investment 
securities other than short-term investments aggregated $115,829,173 and 
$127,496,056, respectively. There were no purchase or sales of short term 
obligations. In determining the net gain or loss on securities sold, the cost 
of securities has been determined on the identified cost basis. 

Transactions in U.S. Treasury Bond futures contracts during the period are 
summarized as follows. 

<TABLE>
<CAPTION>
                                   Sales of Futures Contracts 
                                 Number of          Aggregate 
                                 Contracts         Face Value 
<S>                                   <C>        <C><C>
Contracts opened                       350       $ 37,729,280 
Contracts closed                      (300)       (32,443,343) 
Open at end of year                     50       $  5,285,937 
</TABLE>

Note 5 Reclassification of Capital Accounts 

Effective November 1, 1993, Putnam Managed Municipal Income Trust has adopted 
the provisions of Statement of Position 93-2 (SOP) "Determination, Disclosure 
and Financial Statement Presentation of Income, Capital Gain and Return of 
Capital distributions by Investment Companies". The purpose of this SOP is to 
report the accumulated net investment income (loss) and accumulated net 
realized gain (loss) accounts in such a manner as to approximate amounts 
available for future distributions (or to offset future realized capital 
gains) and to achieve uniformity in the presentation of distributions by 
investment companies. 

As a result of the SOP, the Fund has reclassified $11,037 to decrease 
undistributed net investment income and $11,033 to increase accumulated net 
realized gain and $4 to increase additional paid in capital. 

These adjustments represent the cumulative amounts necessary to report these 
balances through October 31, 1993, the close of the Fund's last fiscal year 
end for financial reporting and tax purposes. 

<PAGE>

Selected 
Quarterly 
Data 
(Unaudited) 
<TABLE>
<CAPTION>
                                                         Three months ended 
                 April     January     October        July       April     January     October         July       April    January 
                    30          31          31          31          30          31          31           31          30         31 
                  1994        1994        1993        1993        1993        1993        1992         1992        1992       1992
<S>     <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>
Total 
investment 
income 
Total   $11,884,996 $11,953,487 $12,131,634 $12,114,324 $12,113,227 $12,176,829  $12,077,608  $12,062,083  $12,190,166 $12,398,032
Per share      $.27        $.27        $.28        $.28        $.28        $.27         $.28         $.28         $.29        $.28 
Net 
investment 
income 
available 
to 
common 
shareholders 
Total     $9,602,081  $9,411,000  $9,644,213 $9,601,179  $9,772,176  $9,496,930   $9,622,505   $9,279,368   $9,552,718  $9,177,562 
Per share       $.22        $.21        $.21       $.22        $.23        $.21         $.22         $.22         $.22        $.21 
Net 
realized 
and 
unrealized 
gain (loss) 
on 
investments 
Total   $(40,050,878) $2,572,403 $12,792,002 $8,635,842  $7,911,957 $15,441,312 $(22,383,227) $26,611,672 $(1,170,558) $5,230,983 
Per share     $(.92)        $.06        $.30       $.20        $.18        $.36        $(.52)        $.68       $(.02)       $.12 
Net 
increase 
(decrease) 
in 
net assets 
available 
to 
common 
shareholders 
resulting 
from 
operations 
Total  $(30,448,797) $11,983,403 $22,436,215 $18,237,021 $17,684,133 $24,938,242 $(12,760,722) $38,891,040 $8,382,160 $14,408,545 
Per share     $(.70)        $.27        $.51        $.42        $.41        $.57        $(.30)        $.90       $.20        $.33 
Net assets 
available 
to common 
shareholders 
at the end of 
the period 
Total $441,574,763$479,160,197$477,660,049$462,370,289 $451,177,789 $440,618,960 $425,694,046$445,652,126$413,804,418$412,632,107 
  Per share  $9.98      $10.87      $10.88      $10.56       $10.33       $10.11        $9.81      $10.30       $9.59       $9.58 
</TABLE>

<PAGE>

Fund 
Performance 
Supplement 

Putnam Managed Municipal Income Trust is a portfolio managed for high current 
income exempt from federal income tax through a diversified portfolio of 
tax-exempt municipal securities. The fund invests in lower-rated, 
high-yielding securities, which pose a greater risk to principal than 
higher-rated securities. High-yield securities are rated lower than 
investment-grade securities because there is a greater possibility that 
negative changes in the issuer's financial condition, or in general economic 
conditions, may hinder the issuer's ability to pay principal and interest on 
securities. 
Fund performance data do not take into account any adjustment made for taxes 
payable on reinvested distributions. 
The Lehman Brothers Municipal Bond Index is an unmanaged list of long-term, 
fixed-rate, investment-grade, tax-exempt bonds representative of the 
municipal bond market. The index does not take into account brokerage 
commissions or other costs, may include bonds different from those in the 
fund, and may pose different risks from the fund. 
The Consumer Price Index is a commonly used measure of inflation; it does not 
represent an investment return. 
The fund performance supplement has been prepared by Putnam Management to 
provide additional information about the fund and the indexes used for 
performance comparisons. The information is not part of the portfolio of 
investments owned or the financial statements. 

<PAGE>

Your 
Trustees 
George Putnam 
Chairman 
Chairman and President, 
The Putnam Funds 
William F. Pounds 
Vice Chairman 
Professor of Management 
Jameson Adkins Baxter 
President, 
Baxter Associates, Inc. 
Hans H. Estin 
Vice Chairman, 
North American 
Management CorporationJohn A. Hill 
Principal and 
Managing Director, 
First Reserve Corp. 
Elizabeth T. Kennan 
President, 
Mount Holyoke College 
Lawrence J. Lasser 
President and 
Chief Executive Officer, 
Putnam Investments, Inc. 
Robert E. Patterson 
Executive Vice President, 
Cabot Partners 
Limited Partnership 
Donald S. Perkins 
Director of various 
corporations 
George Putnam, III 
President, New Generation 
Research, Inc. 
A.J.C. Smith 
Chairman of the Board 
and Chief Executive Officer, 
Marsh & McLennan 
Companies, Inc. 
W. Nicholas Thorndike 
Director of various 
corporations 

<PAGE>

Putnam 
Managed 
Municipal 
Income 
Trust 

Fund information 

Investment manager 
Putnam Investment 
Management 
One Post Office Square 
Boston, MA 02109 

Marketing services 
Putnam Mutual Funds 
One Post Office Square 
Boston, MA 02109 

Investor servicing agent 
Putnam Investor Services 
Mailing address: 
P.O. Box 41203 
Providence, RI 02940-1203 
1-800-225-1581 

Custodian 
Putnam Fiduciary 
Trust Company 

Legal counsel 
Ropes & Gray 

Independent accountants 
Coopers & Lybrand 

       (DALBAR LOGO) 

 Putnam Investor Services 
  has received the DALBAR 
 award each year since the 
  award's 1990 inception. 
 In more than 10,000 tests 
     of 38 shareholder 
    service components, 
    Putnam outperformed 
   the industry standard 
    in every category. 

MMM-12457 

<PAGE>

Officers 
George Putnam 
President 

Charles E. Porter 
Executive Vice President 

Patricia C. Flaherty 
Senior Vice President 

Lawrence J. Lasser 
Vice President 

Gordon H. Silver 
Vice President 

John R. Verani 
Vice President 

Gary N. Coburn 
Vice President 

James P. Erickson 
Vice President 
and Fund Manager 

William N. Shiebler 
Vice President 

John D. Hughes 
Vice President 
and Treasurer 

Paul O'Neil 
Vice President 

Beverly Marcus 
Vice President 
and Clerk 

This report is for the information of shareholders of Putnam Managed 
Municipal Income Trust. It may 
also be used as sales literature when preceded or 
accompanied by the current prospectus, which gives 
details of sales charges, investment objectives, and 
operating policies of the fund. 
Call 1-800-225-1581 weekdays from 9 a.m. to 5 p.m. Eastern Time for 
up-to-date information about the fund's NAV or to request Putnam's quarterly 
Closed-End Fund Commentary 

PUTNAMINVESTMENTS 
      The Putnam Funds 
      One Post Office Square 
      Boston, Massachusetts 02109 


Bulk Rate 
U.S. Postage 
Paid 
Boston, MA 
Permit No. 53749 

<PAGE>

APPENDIX TO FORM N-30D FILINGS TO DESCRIBE DIFFERENCES BETWEEN PRINTED
AND EDGAR-FILED TEXTS:

(1)  Bold and italic typefaces are displayed in normal type.

(2)  Headers (e.g., the name of the fund) are omitted.

(3)  Certain tabular and columnar headings and symbols are displayed 
     differently in this filing.

(4)  Bullet points and similar graphic signals are omitted.

(5)  Page numbering is omitted.

(6)  Pound sterling symbol replaced with (pound); Japanese yen replaced
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