PUTNAM NEW YORK TAX EXEMPT MONEY MARKET FUND
N-30D, 1996-07-25
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Putnam
New York
Tax Exempt
Money Market
Fund

SEMIANNUAL REPORT

May 31, 1996

[LOGO: BOSTON * LONDON * TOKYO]



Fund highlights

*  "The fund is positioned to take advantage of investment opportunities 
within New York and will maintain a high-quality portfolio while 
examining the state's uncertain economic environment." 

                                  -- Lindsey C. Strong, Manager
                   Putnam New York Tax Exempt Money Market Fund

*  "[G]iven that 1996 is an election year, the popularity of tax 
deductions and complexity of implementing any substantial changes to the 
tax codes help make the outlook for the muni market optimistic." 

           -- The Value Line Mutual Fund Survey, March 19, 1996


CONTENTS
4   Report from Putnam Management
7   Fund performance summary
9   Portfolio holdings
11  Financial statements



From the Chairman

[PHOTO OF GEORGE PUTNAM OMITTED]
(copyright) Karsh, Ottawa

Dear Shareholder:

Putnam New York Tax Exempt Money Market Fund began its current fiscal 
year, in the midst of one of the most vibrant fixed-income markets in 
recent memory, only to take an abrupt turn downward in March. The 
decline came in response to concern over the possibility of a pickup in 
inflation at the hands of an economy many perceived was still advancing 
too swiftly. 

Fund Manager Lindsey C. Strong, foreseeing such volatility even before 
the new fiscal year began, had shifted your fund's portfolio to shorter 
maturities. This move gave the fund a considerable advantage over many 
other funds. With the portfolio concentrated in high-quality corporate 
issues and shorter-term government agency securities, Lindsey believes 
share price and income stream should be preserved in a market 
environment that may remain somewhat unsettled over the next few months.

She provides a full discussion of your fund's performance and outlook in 
the report that follows. 

Respectfully yours, 


George Putnam
/S/George Putnam

Chairman of the Trustees

July 17, 1996



Report from the Fund Manager
Lindsey C. Strong

For the six months ended May 31, 1996, Putnam New York Tax Exempt Money 
Market Fund continued to provide a competitive total return while 
focusing on capital preservation, liquidity, and maintaining a stable 
$1.00 share price. Throughout the period, we implemented the fund's 
conservative investment strategy, which emphasizes short-term 
instruments of the highest quality in its pursuit of current income.

* PORTFOLIO MATURITIES ADJUSTED IN A SHIFTING ECONOMY

During the semiannual period, the economic environment in which your 
fund was managed shifted from one of slow economic growth and declining 
interest rates to one of stronger growth and uncertainty about the 
direction of interest rates. Since money market funds invest in short-
term, fixed-income securities, their yields rise and fall with the 
short-term interest rates that are controlled by the Federal Reserve 
Board. 

The slow-growth, low-inflation environment that persisted throughout 
1995 prompted the Fed to trim short-term interest rates by one quarter 
of a percentage point in December 1995 and again in January 1996. In 
this declining interest rate environment, our strategy emphasized 
extending the fund's average maturity in order to lock in higher yields. 

For most of 1996, however, stronger-than-expected economic growth has 
raised concerns that inflation may accelerate. February's employment 
gain figures were twice what analysts had forecast, fueling these 
concerns. March's and April's employment statistics were also robust. 
While the Fed took no action on interest rates from February through 
May, economic news led many analysts to conclude that additional rate 
declines were unlikely and that rate increases might well be on the 
horizon. 

Because of the uncertainty of this investment climate, we have adopted a 
more neutral strategy. We began to reduce the fund's average maturity so 
we would be in a position to take advantage of incrementally higher 
yields, should interest rates begin to rise. 

*CREDIT QUALITY AND DIVERSIFICATION REMAIN ESSENTIAL

The inability of Albany and New York City to balance their respective 
budgets has been a concern for several months. With less money flowing 
from Washington and state lawmakers wrestling with dwindling resources, 
we believe that the likelihood of a balanced state budget is smaller 
than ever. 

Further fiscal tightening will necessitate budgetary cutbacks in 
programs, which we believe will only make the economics of public 
agencies more problematic. Because we take a conservative approach to 
managing your fund -- one in which credit quality is paramount -- your 
fund has virtually no exposure to the state's budgetary problems. 

We have structured a portfolio in which approximately 80% of your fund's 
investments are insured or backed by bank letters of credit. The 
insurance and letters of credit guarantee that the short-term debt 
(money market instruments) in which your fund invests will be paid 
within a certain period of time. These features add a significant 
measure of quality assurance, making many of the fund's holdings among 
the highest quality securities available. We intend to maintain the 
portfolio's high percentage of insured and bank-backed securities going 
forward and may even expand it, should appropriate investment 
opportunities arise.

The supply of municipal securities fluctuates broadly throughout the 
year. Nevertheless, we were able to find securities that measured up to 
our strict standards for high quality and liquidity. We primarily 
invested in variable rate demand notes (VRDNs) and municipal commercial 
paper issued by the state of New York. Variable rate demand notes are 
instruments that can be redeemed on short notice. They pay a variable 
interest rate that resets at daily, weekly, or monthly intervals and can 
be particularly useful in enabling us to manage the fund's average 
maturity and liquidity. Commercial paper is a short-term security issued 
by a municipality to finance capital or operating needs. 

PERFORMANCE COMPARISONS (5/31/96)

                            Current      After-tax        After-tax
                             return       return1          return2
- -----------------------------------------------------------------------
Passbook savings account     2.00%         1.07%             1.12%
- -----------------------------------------------------------------------
Taxable money market fund
7-day yield                  4.74          2.55              2.66
- -----------------------------------------------------------------------
3-month certificate of 
deposit (as of 5/29/96)      3.99          2.14              2.24
- -----------------------------------------------------------------------
Putnam New York 
Tax Exempt Money 
Market Fund (7-day yield)    3.14          3.14              3.14
- -----------------------------------------------------------------------

Sources: Bank of Boston (passbook savings), IBC/Donaghue's Money Fund 
Report (taxable money market fund 7-day yield), Bank Rate Monitor (3-
month Cds).

The principal value and interest of money market mutual funds are 
uninsured and designed to be fixed, while distributions vary daily. The 
principal value on passbook savings and bank CDs is generally insured up 
to certain limits by state and federal agencies. CDs, unlike stocks 
(which incur more risk), offer a fixed rate of return. Unlike money 
market funds, early withdrawals from bank CDs may be subject to 
substantial penalties. Investment returns will fluctuate. 1After-tax 
return assumes a combined 46.27% federal income tax, New York state and 
New York City tax rate. 2After-tax return assumes a combined 43.90% 
federal income tax and New York state personal income tax rate.

An investment in this fund is neither insured nor guaranteed by the U.S. 
government. The fund is managed to maintain a steady price of $1.00 per 
share, although there is no assurance this price will be maintained in 
the future. 

* OUR OUTLOOK

We are cautiously optimistic in our outlook for the economy and interest 
rates. Rising long-term interest rates, a fluctuating bond market, and 
strong employment data suggest that more robust economic growth and 
possibly higher inflation may be in the offing. We believe that short-
term interest rates could remain at current levels or edge upward. Given
this environment, we plan to maintain the fund's average maturity at a 
level that should keep the fund sufficiently flexible to take advantage 
of buying opportunities that may arise, while protecting its income 
stream.

The views expressed here are exclusively those of Putnam Management. 
They are not meant as investment advice. Although the described holdings 
were viewed favorably as of 5/31/96, there is no guarantee the fund will 
continue to hold these securities in the future. An investment in the 
fund is neither insured nor guaranteed by the U.S. government. There can 
be no assurance that the fund will be able to maintain a stable net
asset value of $1.00 per share.



Performance summary

Performance should always be considered in light of a fund's investment 
strategy. Putnam New York Tax Exempt Money Market Fund is designed for 
investors seeking current income free from federal income tax and New 
York State and New York City personal income taxes, consistent with 
preservation of capital and maintenance of liquidity and stability of 
principal. 

This section provides, at a glance, information about your fund's 
performance. Total return shows how the value of the fund's shares 
changed over time, assuming you held the shares through the entire 
period and reinvested all distributions in the fund. 

TOTAL RETURN FOR PERIODS ENDED 5/31/96

                                      Lipper New York 
                                        Tax Exempt         Consumer
                       Fund shares   Money Market Fund       Price
                         at NAV          Average             Index
- ----------------------------------------------------------------------
6 months                  1.54%            1.48%               1.95%
- ----------------------------------------------------------------------
1 year                    3.13             3.11                2.89
- ----------------------------------------------------------------------
5 years                  13.52            13.93               15.49
Annual average            2.57             2.64                2.92
- ----------------------------------------------------------------------
Life of fund (10/26/87)  34.80            35.10               35.82
Annual average            3.53             3.57                3.62
- ----------------------------------------------------------------------

TOTAL RETURN FOR PERIODS ENDED 6/30/96 
(most recent calendar quarter)
                                                     Fund shares
                                                        at NAV
- ----------------------------------------------------------------------
6 months                                                  1.33%
- ----------------------------------------------------------------------
1 year                                                    2.92
- ----------------------------------------------------------------------
5 years                                                  13.22
Annual average                                            2.52
- ----------------------------------------------------------------------
Life of fund (10/26/87)                                   34.87
Annual average                                             3.51
- ----------------------------------------------------------------------

Performance data represent past results and should not be taken as an 
assurance of future performance. Investment returns will fluctuate. 

PRICE AND DISTRIBUTION INFORMATION
6 months ended 5/31/96 
- ----------------------------------------------------------------------
Distributions (number)                                       6
- ----------------------------------------------------------------------
Income                                                   $0.01535
- ----------------------------------------------------------------------
Current return (end of period)
- ----------------------------------------------------------------------
7-day yield1                                               3.14%
- ----------------------------------------------------------------------
Taxable equivalent2 (a)                                    5.60
- ----------------------------------------------------------------------
Taxable equivalent2 (b)                                    5.84
- ----------------------------------------------------------------------
30-day yield1                                              3.23
- ----------------------------------------------------------------------
Taxable equivalent2 (a)                                    5.76
- ----------------------------------------------------------------------
Taxable equivalent2 (b)                                    6.01
- ----------------------------------------------------------------------
1The 7- and 30-day yields are the two most common gauges for measuring 
money market mutual fund performance.

2Assumes (a) maximum 43.90% combined federal income tax and New York 
state personal income tax rate or (b) maximum 46.27% combined federal 
income tax, New York state and New York City personal income tax rate. 
Results for investors subject to lower tax rates would not be as 
advantageous.

For some investors, investment income may also be subject to the federal 
alternative minimum tax. Investment income may be subject to state and 
local taxes. 

TERMS AND DEFINITIONS

Net asset value (NAV) is the value of all your fund's assets, minus any 
liabilities, divided by the number of outstanding shares. 

COMPARATIVE BENCHMARKS

Lipper New York Tax Exempt Money Market Fund Average is an arithmetic 
average of the total return of all tax exempt money market mutual funds 
tracked by Lipper Analytical Services. Lipper is an independent rating 
organization for the mutual fund industry. Lipper rankings vary for 
other periods. The fund's holdings do not match those in the Lipper 
Average. 

Consumer Price Index (CPI) is a commonly used measure of inflation; it 
does not represent an investment return.



<TABLE>
<CAPTION>

Portfolio of investments owned
May 31,1996 (Unaudited)

            Key to Abbreviations
            FGIC- Federal Guaranty Insurance Corporation
            LOC- Letter of Credit
            MCP- Municipal Commercial Paper
            RAN- Revenue Anticipation Notes
            TAN- Tax Anticipation Notes
            VRDN- Variable Rate Demand Notes

MUNICIPAL BONDS AND NOTES  (84.9%) *
PRINCIPAL AMOUNT                                                                                         RATINGS **      VALUE

New York  (84.9%)
<S>         <C>                                                                                          <C>       <C>
- -----------------------------------------------------------------------------------------------------------------------------
$2,000,000  Erie Cnty., RAN (Union Bank of Switzerland LOC), 
              4 1/2s, 9/20/96                                                                            VMIG1     $2,003,830
 2,000,000  Metropolitan Trans. Auth. Transit Fac. Rev. Bonds, 
              Ser. F, 8 3/8s, 7/1/16                                                                      AAA       2,047,642
 2,035,000  Monroe Cnty., Indl. Dev. Agcy. VRDN (Columbia 
              Sussex) (Cumberland Federal Savings and 
              Loan LOC), 5s , 11/1/14                                                                    A-1+       2,035,000
            N Y City, Hsg. Dev. Corp. VRDN
 3,300,000  (East 96th St. Project)(Bank of Tokyo-
              Mitsubishi LOC), Ser. A, 3.4s, 8/1/15                                                      VMIG1      3,300,000
   510,000  (Parkgate Tower Project)(Citibank LOC), 3.4s, 
              12/1/07                                                                                    VMIG1        510,000
 1,000,000  N Y City, Indl. Dev. Agcy. VRDN (Cab. Assoc. & RCB 
              Const. Project)(Bank of New York LOC), 4.05s, 
              12/1/01                                                                                     AA        1,000,000
 3,500,000  N Y State Dorm. Auth. Rev. Bonds (City Univ. 
              System) Ser. A, 7 5/8s, 7/1/13                                                              AAA       3,583,145
            N Y State Energy Research & Dev. Auth. Poll. 
              Control VRDN
 3,000,000  (Lilco Project)(Deutsche Bank LOC), Ser. A, 
              3 1/4s, 3/1/16                                                                             VMIG1      3,000,000
 1,200,000  (NY State Elec.& Gas Corp.)(Union Bank of 
              Switzerland LOC), Ser. D, 3.8s, 10/1/29                                                    A-1+       1,200,000
 1,100,000  (NY State Elec. & Gas Corp.)(Morgan Gnty. 
              Tr. Co. LOC), Ser. C, 3.6s, 6/1/29                                                         A-1+       1,100,000
 4,000,000  (Niagara Mohawk Pwr. Project) (Toronto 
              Dominion Bank LOC), Ser. 85 A, 3.8s, 7/1/15                                                A-1+       4,000,000
 1,000,000  (Rochester Gas & Electric)(Bank of New York 
              LOC), Ser. A, 3.45s, 10/1/14                                                                P-1       1,000,000
 2,000,000  NY State Hsg. Fin. Agcy. VRDN (Normandie Court 
              Project)( Societe Generale LOC), 3.5s, 5/15/15                                             VMIG1      2,000,000
 4,000,000  NY State Local Govt. Assistance Corp. VRDN (Swiss 
              Bank Corporation , Credit Suisse LOC), Ser. B, 
              3.4s, 4/1/23                                                                               VMIG1      4,000,000
 2,000,000  NY State Med. Care Fac. Fin. Agcy. VRDN (Lenox Hill Hosp.)
              (Chemical Bank LOC), Ser. A, 3 1/2s, 11/1/08                                               VMIG1      2,000,000
 2,100,000  North Hempstead, Solid Waste Mgmt. Auth. VRDN 
              (National Westminster Bank PLC LOC), Ser. A, 3.4s, 2/1/12                                  VMIG1      2,100,000
 2,300,000  Triborough Brdg. & Tunnel Auth. Special Obligation 
              VRDN, FGIC, 3.4s, 1/1/24                                                                   VMIG1      2,300,000
 2,500,000  Westchester Cnty., TAN, 3 3/4s, 12/11/96                                                      MIG1      2,508,428
                                                                                                                  -----------
            Total Municipal Bonds and Notes  (cost $39,688,045)                                                   $39,688,045

MUNICIPAL COMMERCIAL PAPER  (13.1%) *
PRINCIPAL AMOUNT                                                                                        RATINGS **      VALUE
- -----------------------------------------------------------------------------------------------------------------------------
$2,300,000  NY City, Water Finance MCP (Canadian Imperial 
              Bank of Commerce LOC), 3.7s, 8/8/96                                                        MIG1      $2,300,000
 1,900,000  NY State Dorm Auth. MCP (Memorial Sloan-
              Kettering Cancer Center)(Chase Manhattan Bank LOC), 3.65s, 8/6/96                          MIG1       1,900,000
 1,900,000  NY State Environmental Facilities Corp. MCP 
              (General Electric Project), 3.5s, 6/14/96                                                   P-1       1,900,000
                                                                                                                  -----------
            Total Municipal Commercial Paper  (cost $6,100,000)                                                   $ 6,100,000
- -----------------------------------------------------------------------------------------------------------------------------
            Total Investments (cost $45,788,045)***                                                               $45,788,045
- -----------------------------------------------------------------------------------------------------------------------------

  *  Percentages indicated are based on net assets of $46,723,681.
 **  The Moody's or Standard & Poor's ratings indicated are believed to be the most
     recent ratings available at May 31, 1996 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 May 31, 1996.
     Moody's Investor Service, Inc. and Standard & Poor's Corp. are the leading independent
     rating agencies for debt securities. Moody's uses the designation "Moody's Investment Grade"
     or "MIG" for most short-term municipal obligations, adding a "V" ("VMIG") for bonds
      with a demand or variable feature; the designation "P" is used for tax-exempt
     commercial paper. Standard & Poor's, uses "SP" for notes maturing in three years or less,
     "A" for bonds with a demand or variable feature.

    Moody's Investor Services, Inc.
    MIG1/VMIG1 = Best quality; strong protection of cash flows, superior liquidity and broad access to refinancing
    MIG2/VMIG2 = High quality; ample protection of cash flows, superior liquidity support and ability to refinance
    P-1 = Superior capacity for repayment
    P-2 = Strong capacity for repayment
    AAA = Extremely strong capacity to pay interest and repay principal
    AA = Strong capacity to pay interest and repay principal and differs from the higher rated issues only in a small degree

    Standard & Poor's Corp.
    SP-1 = Overwhelming safety characteristics
    SP-2 = Strong capacity to pay principal and interest
    A-1+ = Overwhelming degree of credit and protection
    A-1 = Strong degree of safety
    A-2 = Considered strong but lacks solid strength for timely repayment

*** The aggregate identified cost on a tax basis is the same.

    The rates on VRDNs are the current rates at May 31, 1996, which are subject to change
    based on the terms of the security.

    The fund had the following industry group concentrations greater than 10% on May 31,
    1996 (as a percentage of net assets):

    Housing               26.1%
    Energy                22.0
    Transportation        11.4

    The accompanying notes are an integral part of these financial statements.

</TABLE>


<TABLE>
<CAPTION>

Statement of assets and liabilities
May 31, 1996 (Unaudited)

<S>                                                                           <C>
Assets
- ------------------------------------------------------------------------------------------
Investments in securities, at amortized cost (Note 1)                          $45,788,045
- ------------------------------------------------------------------------------------------
Cash                                                                               616,210
- ------------------------------------------------------------------------------------------
Interest and other receivables                                                     437,559
- ------------------------------------------------------------------------------------------
Receivable for shares of the fund sold                                             129,943
- ------------------------------------------------------------------------------------------
Total assets                                                                    46,971,757

Liabilities
- ------------------------------------------------------------------------------------------
Distributions payable to shareholders                                               74,448
- ------------------------------------------------------------------------------------------
Payable for shares of the fund repurchased                                         116,854
- ------------------------------------------------------------------------------------------
Payable for compensation of Manager (Note 2)                                        34,707
- ------------------------------------------------------------------------------------------
Payable for compensation of Trustees (Note 2)                                           82
- ------------------------------------------------------------------------------------------
Payable for administrative services (Note 2)                                           737
- ------------------------------------------------------------------------------------------
Other accrued expenses                                                              21,248
- ------------------------------------------------------------------------------------------
Total liabilities                                                                  248,076
- ------------------------------------------------------------------------------------------
Net assets                                                                     $46,723,681

Represented by
- ------------------------------------------------------------------------------------------
Paid-in-capital (Note 4)                                                       $46,723,681
- ------------------------------------------------------------------------------------------
Net asset value, offering and redemption price per share
($46,723,681 divided by 46,723,681 shares)                                           $1.00
- ------------------------------------------------------------------------------------------

The accompanying notes are an integral part of these financial statements.

</TABLE>



<TABLE>
<CAPTION>

Statement of operations
Six months ended May 31, 1996 (Unaudited)

<S>                                                                        <C>
Tax Exempt Interest Income:                                                 $743,537
- ------------------------------------------------------------------------------------

Expenses:
- ------------------------------------------------------------------------------------
Compensation of Manager (Note 2)                                              97,207
- ------------------------------------------------------------------------------------
Investor servicing and custodian fees (Note 2)                                33,986
- ------------------------------------------------------------------------------------
Compensation of Trustees (Note 2)                                              2,912
- ------------------------------------------------------------------------------------
Administrative services (Note 2)                                               2,171
- ------------------------------------------------------------------------------------
Reports to shareholders                                                        5,489
- ------------------------------------------------------------------------------------
Registration fees                                                              9,618
- ------------------------------------------------------------------------------------
Auditing                                                                       8,255
- ------------------------------------------------------------------------------------
Other                                                                            794
- ------------------------------------------------------------------------------------
Total expenses                                                               160,432
- ------------------------------------------------------------------------------------
Expense reduction (Note 2)                                                   (51,487)
- ------------------------------------------------------------------------------------
Net expenses                                                                 108,945
- ------------------------------------------------------------------------------------
Net investment income                                                        634,592
- ------------------------------------------------------------------------------------
Net increase in net assets resulting from operations                        $634,592
- ------------------------------------------------------------------------------------

The accompanying notes are an integral part of these financial statements.

</TABLE>



<TABLE>
<CAPTION>

Statement of changes in net assets
                                                                 Six months ended           Year ended
                                                                           May 31          November 30
                                                                            1996*                 1995
- -------------------------------------------------------------------------------------------------------
<S>                                                                     <C>                <C>
Increase (decrease) in net assets
- -------------------------------------------------------------------------------------------------------
Operations:
- -------------------------------------------------------------------------------------------------------
Net investment income                                                    $634,592           $1,415,126
- -------------------------------------------------------------------------------------------------------
Net increase in net assets resulting from operations                      634,592            1,415,126
- -------------------------------------------------------------------------------------------------------
Distributions to shareholders:
- -------------------------------------------------------------------------------------------------------
   From net investment income                                            (634,592)          (1,415,126)
- -------------------------------------------------------------------------------------------------------
Increase (decrease) from capital share transactions (Note 4)            7,850,406           (5,941,726)
- -------------------------------------------------------------------------------------------------------
Total increase (decrease) in net assets                                 7,850,406           (5,941,726)
- -------------------------------------------------------------------------------------------------------
Net assets
- -------------------------------------------------------------------------------------------------------
Beginning of period                                                    38,873,275           44,815,001
- -------------------------------------------------------------------------------------------------------
End of period                                                         $46,723,681          $38,873,275
- -------------------------------------------------------------------------------------------------------
* Unaudited

The accompanying notes are an integral part of these financial statements.

</TABLE>



<TABLE>
<CAPTION>

Financial highlights
(For a share outstanding throughout the period)
                                                            Six
                                                   months ended
                                                         May 31                     Year ended November 30
                                                        -----------------------------------------------------------------
                                                           1996 *       1995       1994       1993      1992         1991
                                                        -----------------------------------------------------------------
<S>                                                      <C>          <C>        <C>        <C>       <C>          <C>
Net asset value, beginning of period                      $1.00        $1.00      $1.00      $1.00     $1.00        $1.00
- -------------------------------------------------------------------------------------------------------------------------
Investment operations
- -------------------------------------------------------------------------------------------------------------------------
Net investment income                                     .0154        .0318      .0188      .0165     .0259 (a)    .0399 (a)
- -------------------------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (P/E) on investments         -            -          -      .0001         -            -
- -------------------------------------------------------------------------------------------------------------------------
Total from investment operations                         $.0154       $.0318     $.0188     $.0166    $.0259       $.0399
- -------------------------------------------------------------------------------------------------------------------------
Less distributions:
- -------------------------------------------------------------------------------------------------------------------------
From net investment income                               (.0154)      (.0318)    (.0188)    (.0165)   (.0259)      (.0399)
- -------------------------------------------------------------------------------------------------------------------------
From net realized gain on investments                         -            -          -       (.0001)      -            -
- -------------------------------------------------------------------------------------------------------------------------
Total distributions                                      (.0154)      (.0318)    (.0188)    (.0166)   (.0259)      (.0399)
- -------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                            $1.00        $1.00      $1.00      $1.00     $1.00        $1.00
- -------------------------------------------------------------------------------------------------------------------------
Total investment return at net asset value (%)(b)          1.54 (d)     3.23       1.90       1.67      2.62         4.07
- -------------------------------------------------------------------------------------------------------------------------
Net assets, end of year (in thousands)                  $46,724      $38,873    $44,815    $50,473   $57,705      $64,286
- -------------------------------------------------------------------------------------------------------------------------
Ratio of expenses to average net assets (%)(c)              .37 (d)      .91        .77        .91       .78 (a)      .80 (a)
- -------------------------------------------------------------------------------------------------------------------------
Ratio of net investment income to average net assets (%)   1.47 (d)     3.18       1.86       1.69      2.59 (a)     3.96 (a)

*   Unaudited

(a) Reflects an expense limitation. As a result of such limitations, expenses
    of the fund for the years ended November 30, 1992 and 1991
    reflect reductions of $0.0024 and $0.0034 per share, respectively.

(b) Total investment return assumes dividend reinvestments.

(c) The ratio of expenses to average net assets for the period ended November 30,
    1995 and thereafter, includes amounts paid through expense offset arrangements.
    Prior period ratios exclude these amounts. (See Note 2).

(d) Not annualized

</TABLE>



Notes to financial statements
May 31, 1996 (Unaudited)

Note 1 
Significant accounting policies

The fund is registered under the Investment Company Act of 1940, as 
amended, as a nondiversified, open-end management investment company. 
The fund seeks as high a level of current income exempt from Federal 
income tax, New York State and New York City personal income taxes as 
Putnam Investment Management, Inc. ("Putnam Managment"), the fund's 
manager, a wholly-owned subsidiary of Putnam Investments, Inc., believes 
is consistent with maintenance of liquidity and stability of principal. 
The fund invests primarily in a nondiversified portfolio of short-term 
New York tax exempt securities. 

The following is a summary of significant accounting policies 
consistently followed by the fund in the preparation of its financial 
statements. The preparation of financial statements is in conformity 
with generally accepted accounting principles and requires management to
make estimates and assumptions that affect the reported amounts of 
assets and liabilities. Actual results could differ from those 
estimates.

A) Security valuation The valuation of the fund's portfolio instruments 
is determined by means of the amortized cost method as set forth in Rule 
2a-7 under the Investment Company Act of 1940. The amortized cost of an 
instrument is determined by valuing it at cost originally and thereafter 
amortizing any discount or premium from its face value at a constant
rate until maturity. 

B) Security transactions Security transactions are accounted for on the 
trade date (date the order to buy or sell is executed).

C) 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 on securities held and for excise tax on income and capital 
gains.

At November 30, 1995, the fund had a capital loss carryover of 
approximately $6,605 available to offset future net capital gain, if 
any, which will expire on November 30, 2002.

D) Interest income and distributions to shareholders Interest is 
recorded on the accrual basis. Income dividends (and distributions of 
realized gains, if any) are recorded daily by the fund and are 
distributed monthly to the shareholders. The amount and character of 
income and gains to be distributed are determined in accordance with 
income tax regulations which may differ from generally accepted 
accounting principles.

Note 2 
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. Such fee is based on the following annual rates: 0.45% of the 
first $500 million of average net assets, 0.35% of the next $500 
million, 0.30% of the next $500 million, and 0.25% of any amount over 
$1.5 billion, subject, under current law, to reduction in any year by 
the amount of certain brokerage commissions and fees (less expenses) 
received by affiliates of Putnam Management on the fund's portfolio 
transactions.

The fund reimburses Putnam Management 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.

Trustees of the fund receive an annual Trustees fee of $390 and an 
additional fee for each Trustee's meeting attended. Trustees who are not 
interested persons of Putnam Management and who serve on committees of 
the Trustees receive additional fees for attendance at certain committee 
meetings.

The fund adopted a Trustee Fee Deferral Plan (the "Plan") which allows 
the Trustees to defer the receipt of all or a portion of Trustees Fees 
payable on or after July 1, 1995. The deferred fees remain invested in 
certain Putnam funds until distribution in accordance with the Plan.

Custodial functions for the fund's assets are provided by Putnam 
Fiduciary Trust Company (PFTC), a wholly-owned subsidiary of Putnam 
Investments, Inc. Investor servicing agent functions are provided by 
Putnam Investor Services, a division of PFTC. 

For the six months ended May 31, 1996, fund expenses were reduced by 
$51,487 under expense offset arrangements with PFTC. Investor servicing 
and custodian fees reported in the Statement of operations exclude these 
credits. The fund could have invested a portion of the assets utilized 
in connection with the expense offset arrangements in an income 
producing asset if it had not entered into such arrangements.

The fund has adopted a distribution plan (the "Plan") pursuant to Rule 
12b-1 under the Investment Company Act of 1940. The purpose of the Plan 
is to compensate Putnam Mutual Funds Corp., a wholly-owned subsidary of 
Putnam Investments, Inc., for services provided and expenses incurred by 
it  in distributing shares of the fund. The Plan provides for payment by 
the fund to Putnam Mutual Funds Corp. at an annual rate of up to 0.35% 
of the fund's average net assets. No payments under the Plan are 
currently authorized.

Note 3 
Purchases and sales of securities 

During the six months ended May 31, 1996, purchases and sales (including 
maturities) of investment securities (all short-term investments) 
aggregated $176,520,525 and $170,052,000, respectively. In determining 
the net gain or loss on securities sold, the cost of securities has been 
determined on the identified cost basis.

Note 4 
Capital shares 

At May 31, 1996, there was an unlimited number of shares of beneficial 
interest authorized. Transactions in capital shares at a constant net 
asset value of $1.00 per share were as follows:

                         Six months     Year ended 
                       ended May 31     November 30
                               1996            1995
- ---------------------------------------------------
Shares sold             165,731,226     186,252,463
Shares issued in 
connection with 
reinvestment of 
distributions               621,887       1,305,570
- ---------------------------------------------------
                        166,353,113     187,558,033

Shares 
repurchased            (158,502,707)   (193,499,759)
- ---------------------------------------------------
Net increase
(decrease)                7,850,406      (5,941,726)
- ---------------------------------------------------


Our commitment to quality service

* CHOOSE AWARD-WINNING SERVICE

Putnam Investor Services has won the DALBAR Quality Tested Service Seal 
for the past six years. In 1995, over 146,000 tests of 56 shareholder 
service components demonstrated that Putnam outperformed the industry 
standard in every category.

* HELP YOUR INVESTMENT GROW

Set up a systematic program for investing with as little as $25 a month 
from a Putnam money market fund or from your checking or savings 
account.*

* SWITCH FUNDS EASILY

You can move money from one account to another with the same class of 
shares without a service charge. (This privilege is subject to change or 
termination.)

* ACCESS YOUR MONEY QUICKLY

You can get checks sent regularly or redeem shares any business day at 
the then-current net asset value, which may be more or less than the 
original cost of the shares.

For details about any of these or other services, contact your financial 
advisor or call the toll-free number shown below and speak with a 
helpful Putnam representative.

To make an additional investment in this or any other Putnam fund, 
contact your financial advisor or call our toll-free number: 1-800-225-
1581.

*Regular investing of course, does not guarantee a profit or protect 
against a loss in a declining market.



Fund information

INVESTMENT MANAGER

Putnam Investment 
Management, Inc.
One Post Office Square
Boston, MA 02109

MARKETING SERVICES

Putnam Mutual Funds Corp.
One Post Office Square
Boston, MA 02109

CUSTODIAN

Putnam Fiduciary Trust Company

LEGAL COUNSEL

Ropes & Gray

TRUSTEES

George Putnam, Chairman
William F. Pounds, Vice Chairman
Jameson Adkins Baxter
Hans H. Estin
John A. Hill
Ronald J. Jackson
Elizabeth T. Kennan
Lawrence J. Lasser
Robert E. Patterson
Donald S. Perkins
George Putnam, III
Eli Shapiro
A.J.C. Smith
W. Nicholas Thorndike

OFFICERS

George Putnam
President 

Charles E. Porter
Executive Vice President

Patricia C. Flaherty
Senior Vice President

John D. Hughes
Senior Vice President and Treasurer

Lawrence J. Lasser
Vice President 

Gordon H. Silver
Vice President 

Gary N. Coburn
Vice President

James E. Erickson
Vice President

William F. McGue
Vice President

Blake E. Anderson
Vice President

Lindsey C. Strong
Vice President and Fund Manager 

William N. Shiebler
Vice President 

John R. Verani
Vice President 

Paul M. O'Neil
Vice President 

Beverly Marcus
Clerk and Assistant Treasurer

This report is for the information of shareholders of Putnam New York 
Tax Exempt Money Market Fund. 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, and the most recent copy of Putnam's Quarterly Performance 
Summary. For more information, or to request a prospectus, call toll 
free: 1-800-225-1581.

Shares of mutual funds are not deposits or obligations of, or guaranteed 
or endorsed by, any financial institution, are not insured by the 
Federal Deposit Insurance Corporation (FDIC), the Federal Reserve Board 
or any other agency, and involve risk, including the possible loss of 
principal amount invested.



PUTNAM INVESTMENTS

The Putnam Funds
One Post Office Square
Boston, Massachusetts 02109

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Putnam
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