DREYFUS BASIC U S GOVERNMENT MONEY MARKET FUND
N-30D, 2000-04-13
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Dreyfus BASIC

U.S. Government

Money Market Fund

ANNUAL REPORT February 29, 2000

(reg.tm)





The  views  expressed herein are current to the date of this report. These views
and  the  composition  of the fund's portfolio are subject to change at any time
based on market and other conditions.

   * Not FDIC-Insured  * Not Bank-Guaranteed  * May Lose Value

Year 2000 Issues (Unaudited)

The fund could be adversely affected if the computer systems used by Dreyfus and
the fund's other service providers do not properly process and calculate
date-related information from and after January 1, 2000. Dreyfus has taken steps
designed to avoid year 2000-related problems in its systems and to monitor the
readiness  of other service providers.  In addition, issuers of securities in
which the fund invests may be adversely affected by year 2000-related problems.
This could have an impact on the value of the fund's investments and its share
price.


                                 Contents

                                 THE FUND
- --------------------------------------------------

                             2   Letter from the President

                             3   Discussion of Fund Performance

                             6   Statement of Investments

                             8   Statement of Assets and Liabilities

                             9   Statement of Operations

                            10   Statement of Changes in Net Assets

                            11   Financial Highlights

                            12   Notes to Financial Statements

                            16   Report of Independent Auditors

                            17   Important Tax Information

                                 FOR MORE INFORMATION
- ---------------------------------------------------------------------------

                                 Back Cover

                                                                       The Fund

                               Dreyfus BASIC  U.S. Government Money Market Fund

LETTER FROM THE PRESIDENT

Dear Shareholder:

We  are  pleased to present this annual report for Dreyfus BASIC U.S. Government
Money  Market  Fund,  covering  the  12-month  period from March 1, 1999 through
February  29,  2000. Inside, you'll find valuable information about how the fund
was  managed during the reporting period, including a discussion with the fund's
portfolio    manager,    Thomas    S.    Riordan.

When  the  reporting  period  began,  it  became apparent that international and
domestic  economies  were  growing faster than analysts expected, giving rise to
concerns  that  long-dormant  inflationary  pressures might re-emerge. Consumers
continued  to  spend heavily, unemployment levels reached new lows and the stock
market    continued    to    climb.

Because   unsustainable   economic  growth  may  trigger  unwanted  inflationary
pressures,  the  Federal Reserve Board raised key short-term interest rates four
times  during  the  reporting period. In total, the Federal Reserve Board raised
short-term interest rates by 1.00 percentage point since late June 1999. In this
environment, yields on money market securities rose.

We  appreciate  your  confidence over the past year, and we look forward to your
continued  participation  in  Dreyfus  BASIC  U.S. Government Money Market Fund

Sincerely,


Stephen E. Canter

President and Chief Investment Officer

The Dreyfus Corporation

March 23, 2000




DISCUSSION OF FUND PERFORMANCE

Thomas S. Riordan, Portfolio Manager

How did Dreyfus BASIC U.S. Government Money Market Fund perform during the
period?

For  the 12-month reporting period ended February 29, 2000, the fund produced an
annualized  yield  of  4.74%. Taking into account the effect of compounding, the
fund's annualized effective yield was 4.84%.(1)

What is the fund's investment approach?

There  are  many  factors we consider when managing the fund. We closely monitor
the  outlook  for economic growth and inflation. We follow overseas developments
for  any  influence  they  may  have on the domestic economy. The posture of the
Federal  Reserve  Board is also a key determinant in our decision as to how best
to structure the portfolio at any particular point in time.

Based  upon our economic outlook, we actively manage the average maturity of the
fund in an effort to take advantage of forecasted changes in interest rates. For
example, if we believe that interest rates are likely to fall, we typically will
lengthen  our  average  maturity  in  order  to  lock  in  today's higher rates.
Conversely, in a rising interest-rate environment, we typically will shorten our
maturities in order to be able to reinvest at higher rates in the future.

In  terms  of  investments,  the  fund  invests  only  in  securities  issued or
guaranteed as to principal and interest by the U.S. government, its agencies and
instrumentalities,  as  well as repurchase agreements backed by such securities

What other factors influenced the fund's performance?

The  fund' s  performance was primarily affected by rising interest rates during
the    12-month    reporting    period.

The performance of the U.S. economy during the first few months of 1999 was much
stronger   than   expected   in   the   wake   of   1998'  s  global   The  Fun


DISCUSSION OF FUND PERFORMANCE (CONTINUED)

financial crisis. Gross Domestic Product (GDP) grew at a rate of 4.3% during the
first  quarter  of  1999,  yet  inflation remained benign. Despite concerns that
faster  growth  might  rekindle long-dormant inflationary pressures, the Federal
Reserve Board held steady on rates.

In   May,  a  surprisingly  large  jump  in  the  Consumer  Price  Index  pushed
policymakers  to adopt a bias towards tightening monetary policy, which caused a
shift in market psychology. As a result, market participants began to anticipate
higher    rates.

In late June, the Fed raised short-term rates 25 basis points. At the same time,
it  announced  that  it  was  shifting  its  bias back to neutral, indicating no
intention  of  further  rate  increases  in  the immediate future. As the summer
progressed,  strong  economic  growth  with  rising  wages  reinforced the Fed's
inflation concerns. At its August meeting, the Fed raised the federal funds rate
by  another  25  basis  points,  and  signaled added resolve by also raising the
discount rate.

In  the  third  quarter,  GDP  growth  accelerated back to a rapid 4.8%, yet key
indicators  of  employment costs, job creation and inflation remained relatively
low.  Nonetheless,  the  Fed  implemented  a  third  25 basis point rate hike in
November.  The Fed took no action at its December meeting in an apparent attempt
to  quiet markets concerned with potential Y2K-related disruptions. In addition,
the  Fed  added  liquidity  to  the  banking  system  over  year-end, leading to
temporary  fluctuations  of  short-term interest rates. Despite this short-lived
market  volatility, few significant Y2K problems were reported when the new year
began.

Concerned  by  evidence  that  the  economy was gaining momentum, the Fed raised
interest rates for a fourth time in early February, for a total rate increase of
100  basis  points  during the 12-month reporting period. Furthermore, while the
Fed  maintained an officially neutral bias after its February rate hike, the Fed
indicated  that  its  inflation-fighting  resolve  is undiminished. Accordingly,
fixed-income   investors   widely   expected  further  short-term  interest-rate
increases    at    subsequent    Fed    meetings.


What is the fund's current strategy?

In  anticipation of rising interest rates, the fund adopted a somewhat defensive
strategy. Most significantly, we reduced the fund's average maturity in order to
build  in a liquidity cushion. Shorter maturities were designed to help the fund
benefit  from  any additional interest-rate increases, as well as to protect the
fund from potential volatility.

As  of February 29, 2000, the fund's average maturity remained relatively short.
However,  we  are  prepared  to  extend  the fund's average maturity if evidence
appears  that the economy is slowing in response to the Fed's previous moves. By
extending  the  fund' s  average  maturity  when  the Fed is near the end of the
current  series  of  rate hikes, we expect to be able to lock in prevailing high
current yields.

In addition, we are carefully monitoring changing supply-and-demand factors. The
U.S.  Treasury  recently  announced  its  intention  to  reduce  the issuance of
one-year Treasury bills from a monthly auction schedule to a quarterly schedule.
While  less  supply  of  one-year  Treasury  bills  may affect the fund's mix of
holdings,  we  currently expect to continue to find opportunities for attractive
yields  and  price  stability  among money market securities from other issuers,
such as U.S. government agencies.

March 23, 2000

(1)  ANNUALIZED EFFECTIVE YIELD IS BASED UPON DIVIDENDS DECLARED DAILY AND
REINVESTED MONTHLY. PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS. YIELDS
FLUCTUATE. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FDIC OR
ANY OTHER GOVERNMENT AGENCY. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF
YOUR INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN
THE FUND.

                                                             The Fund
<TABLE>
<CAPTION>

STATEMENT OF INVESTMENTS

STATEMENT OF INVESTMENTS

February 29, 2000

                                                                          Annualized

                                                                            Yield on

                                                                             Date of              Principal

U.S. GOVERNMENT AGENCIES--87.0%                                          Purchase (%)            Amount ($)            Value ($)
- ------------------------------------------------------------------------------------------------------------------------------------

Federal Farm Credit Bank,
   Consolidated Systemwide Medium Term Notes

<S>                                                                          <C>                <C>                   <C>
   6/29/2000                                                                  5.80(a)            40,000,000            39,996,251

Federal Home Loan Banks, Discount Notes

   3/29/2000                                                                     4.95            25,000,000            24,999,616

   4/5/2000                                                                      5.75            48,619,000            48,350,042

   4/7/2000                                                                      5.62            42,270,000            42,238,621

   4/12/2000                                                                     5.76            15,000,000            14,900,250

   4/13/2000                                                                     5.90            25,000,000            24,827,104

   5/26/2000                                                                     5.24             5,000,000             4,999,548

   5/31/2000                                                                     5.77            50,000,000            49,290,326

   7/14/2000                                                                     5.50            25,000,000            24,999,539

   7/19/2000                                                                     5.51            49,760,000            49,746,536

   12/1/2000                                                                     5.91            32,000,000            31,960,809

Federal Home Loan Banks, Floating Rate Notes

   6/21/2000                                                                  5.85(a)           165,000,000           164,980,193

   9/20/2000                                                                  5.91(a)           150,000,000           149,975,874

   9/25/2000                                                                  5.91(a)            50,000,000            49,991,697

Federal Home Loan Banks, Notes

   4/26/2000                                                                     4.94            11,000,000            11,000,438

Federal Home Loan Mortgage Corporation,
   Discount Notes

   4/4/2000                                                                      5.77             50,000,000           49,729,653

Federal National Mortgage Association, Discount Notes

   4/5/2000                                                                      5.77             50,000,000           49,722,431

   4/20/2000                                                                     4.96             10,000,000            9,999,206

Federal National Mortgage Association, Notes

   5/12/2000                                                                     5.06             25,000,000           25,000,146

TOTAL U.S. GOVERNMENT AGENCIES

   (cost $866,708,280)                                                                                                866,708,280


                                                                          Annualized

                                                                            Yield on

                                                                             Date of              Principal

REPURCHASE AGREEMENTS--12.3%                                             Purchase (%)            Amount ($)            Value ($)
- ------------------------------------------------------------------------------------------------------------------------------------

ABN AMRO Inc.
   dated 2/29/2000, due 3/1/2000 in the amount of
   $39,006,229 (fully collateralized by
   U.S. Treasury Notes 4.50% to 8.50%
   due from 11/15/2000 to
   1/31/2001, value $39,781,583)                                                 5.75             39,000,000         39,000,000

Barclays Capital Inc.
   dated 2/29/2000, due 3/1/2000 in the
   amount of $28,487,154 (fully collateralized by
   U.S. Treasury Bills, due 6/15/2000,
   value $29,071,197)                                                            5.25             28,483,000         28,483,000

Donaldson, Lufkin & Jenrette Securities Inc.
   dated 2/29/2000, due 3/1/2000 in the
   amount of $55,008,815 (fully collateralized by
   U.S. Treasury Notes 5.00% to 8.50%
   due from 11/15/2000 to
   2/28/2001, value $55,689,710)                                                 5.77             55,000,000         55,000,000

TOTAL REPURCHASE AGREEMENTS

   (cost $122,483,000)                                                                                               122,483,000
- ------------------------------------------------------------------------------------------------------------------------------------

TOTAL INVESTMENTS

   (cost $989,191,280)                                                          99.3%                                989,191,280

CASH AND RECEIVABLES (NET)                                                        .7%                                  7,105,520

NET ASSETS                                                                     100.0%                                996,296,800

(A) VARIABLE INTEREST RATE-SUBJECT TO PERIODIC CHANGE.

SEE NOTES TO FINANCIAL STATEMENTS.

                                                             The Fund
</TABLE>

STATEMENT OF ASSETS AND LIABILITIES

February 29, 2000

                                                             Cost        Value
- --------------------------------------------------------------------------------

ASSETS ($):

Investments in securities--See Statement of Investments
   (including repurchase agreements of
   $122,483,000)--Note 1(b)                            989,191,280  989,191,280

Interest receivable                                                  7,681,781

Prepaid expenses                                                        28,609

                                                                   996,901,670
- --------------------------------------------------------------------------------

LIABILITIES ($):

Due to The Dreyfus Corporation and affiliates                           223,338

Cash overdraft due to Custodian                                         272,988

Accrued expenses and other liabilities                                  108,544

                                                                        604,870
- --------------------------------------------------------------------------------

NET ASSETS ($)                                                      996,296,800
- --------------------------------------------------------------------------------

COMPOSITION OF NET ASSETS ($):

Paid-in capital                                                     996,915,460

Accumulated net realized gain (loss) on investments                   (618,660)
- --------------------------------------------------------------------------------

NET ASSETS ($)                                                      996,296,800
- --------------------------------------------------------------------------------

SHARES OUTSTANDING

(unlimited number of $.001 par value shares of Beneficial Interest authorized)
996,915,460

NET ASSET VALUE, offering and redemption price per share ($)               1.00

SEE NOTES TO FINANCIAL STATEMENTS.


STATEMENT OF OPERATIONS

Year Ended February 29, 2000

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

INVESTMENT INCOME ($):

INTEREST INCOME                                                     56,905,388

EXPENSES:

Management fee--Note 2(a)                                            5,473,309

Shareholder servicing costs--Note 2(b)                               1,046,339

Custodian fees                                                          89,598

Registration fees                                                       38,906

Professional fees                                                       35,897

Prospectus and shareholders' reports                                    25,884

Trustees' fees and expenses--Note 2(c)                                  24,771

Miscellaneous                                                           13,686

TOTAL EXPENSES                                                       6,748,390

Less--reduction in management fee due to
  undertaking--Note 2(a)                                           (1,824,495)

NET EXPENSES                                                         4,923,895

INVESTMENT INCOME--NET                                              51,981,493
- --------------------------------------------------------------------------------

NET REALIZED GAIN (LOSS) ON INVESTMENTS--NOTE 1(B) ($)                   9,654

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS                51,991,147

SEE NOTES TO FINANCIAL STATEMENTS.

                                                             The Fund


STATEMENT OF CHANGES IN NET ASSETS

                                                      Year Ended
                                      ------------------------------------------

                                        February 29, 2000    February 28, 1999
- --------------------------------------------------------------------------------

OPERATIONS ($):

Investment income--net                         51,981,493          61,063,913

Net realized gain (loss) from investments           9,654            (11,328)

NET INCREASE (DECREASE) IN NET ASSETS
   RESULTING FROM OPERATIONS                   51,991,147          61,052,585
- --------------------------------------------------------------------------------

DIVIDENDS TO SHAREHOLDERS FROM ($):

INVESTMENT INCOME--NET                       (52,276,234)         (60,955,715)
- --------------------------------------------------------------------------------

BENEFICIAL INTEREST TRANSACTIONS ($1.00 per share):

Net proceeds from shares sold                 805,249,908       1,024,399,996

Dividends reinvested                           49,748,818          57,885,133

Cost of shares redeemed                   (1,041,015,631)      (1,208,430,626)

INCREASE (DECREASE) IN NET ASSETS
   FROM BENEFICIAL INTEREST TRANSACTIONS    (186,016,905)       (126,145,497)

TOTAL INCREASE (DECREASE) IN NET ASSETS     (186,301,992)       (126,048,627)
- --------------------------------------------------------------------------------

NET ASSETS ($):

Beginning of period                         1,182,598,792        1,308,647,419

END OF PERIOD                                 996,296,800        1,182,598,792

Undistributed investment income-net                 --                 294,741

SEE NOTES TO FINANCIAL STATEMENTS.

<TABLE>
<CAPTION>

FINANCIAL HIGHLIGHTS

The  following table describes the performance for the fiscal periods indicated.
Total return shows how much your investment in the fund would have increased (or
decreased)  during  each  period,  assuming you had reinvested all dividends and
distributions.  These  figures  have  been  derived  from  the  fund's financial
statements.

                                                                                     Fiscal Year Ended February,
                                                                 ------------------------------------------------------------------

                                                                 2000          1999           1998          1997          1996
- ------------------------------------------------------------------------------------------------------------------------------------

PER SHARE DATA ($):

<S>                                                              <C>           <C>            <C>            <C>           <C>
Net asset value, beginning of period                             1.00          1.00           1.00           1.00          1.00

Investment Operations:

Investment income--net                                            .048          .049           .052           .051          .058

Distributions:

Dividends from investment income--net                            (.048)        (.049)         (.052)         (.051)        (.058)

Net asset value, end of period                                   1.00          1.00           1.00           1.00          1.00
- ------------------------------------------------------------------------------------------------------------------------------------

TOTAL RETURN (%)                                                 4.88          5.06           5.33           5.20          5.94
- ------------------------------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA (%):

Ratio of expenses to average net assets                           .45           .45            .45            .45           .31

Ratio of net investment income
   to average net assets                                         4.75          4.97           5.22           5.09          5.79

Decrease reflected in above expense
   ratios due to undertakings by
   The Dreyfus Corporation                                        .17           .16            .17            .20           .36

Net Assets, end of period ($ x 1,000)                         996,297      1,182,599     1,308,647       1,459,949     1,366,056

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund

NOTES TO FINANCIAL STATEMENTS

NOTE 1--Significant Accounting Policies:

Dreyfus BASIC U.S. Government Money Market Fund (the "fund") is registered under
the  Investment  Company  Act  of 1940, as amended (the "Act"), as a diversified
open-end  management  investment  company. The fund's investment objective is to
provide  investors  with as high a level of current income as is consistent with
the  preservation  of  capital  and  the  maintenance  of liquidity. The Dreyfus
Corporation (the "Manager") serves as the fund's investment adviser. The Manager
is  a direct subsidiary of Mellon Bank, N.A., which is a wholly-owned subsidiary
of  Mellon  Financial Corporation ("Mellon"). Premier Mutual Fund Services, Inc.
is  the distributor of the fund's shares, which are sold to the public without a
sales charge.

It  is  the  fund's policy to maintain a continuous net asset value per share of
$1.00; the fund has adopted certain investment, portfolio valuation and dividend
and distribution policies to enable it to do so. There is no assurance, however,
that  the  fund  will  be able to maintain a stable net asset value per share of
$1.00.

The  fund' s  financial  statements  are  prepared  in accordance with generally
accepted accounting principles which may require the use of management estimates
and assumptions. Actual results could differ from those estimates.

(a) Portfolio valuation: Investments in securities are valued at amortized cost,
which  has been determined by the fund's Board of Trustees to represent the fair
value of the fund's investments.

(b)  Securities  transactions and investment income: Securities transactions are
recorded  on  a  trade  date  basis.  Realized  gain  and  loss  from securities
transactions  are  recorded  on  the  identified  cost basis. Interest income is
recognized  on the accrual basis. Cost of investments represents amortized cost.
Under the terms of the custody agreement, the fund received net earnings credits
of  $2,659 based on available cash balances left on deposit. Income earned under
this arrangement is included in interest income.


The  fund  may  enter  into  repurchase  agreements with financial institutions,
deemed  to  be  creditworthy  by  the  fund' s  Manager, subject to the seller's
agreement  to repurchase and the fund's agreement to resell such securities at a
mutually   agreed   upon  price.  Securities  purchased  subject  to  repurchase
agreements are deposited with the fund's custodian and, pursuant to the terms of
the  repurchase  agreement,  must have an aggregate market value greater than or
equal  to  the repurchase price plus accrued interest at all times. If the value
of  the underlying securities falls below the value of the repurchase price plus
accrued  interest,  the  fund  will  require  the  seller  to deposit additional
collateral by the next business day. If the request for additional collateral is
not met, or the seller defaults on its repurchase obligation, the fund maintains
the  right  to  sell the underlying securities at market value and may claim any
resulting loss against the seller.

(c) Dividends to shareholders: It is the policy of the fund to declare dividends
daily  from  investment  income-net.  Such dividends are paid monthly. Dividends
from  net realized capital gain are normally declared and paid annually, but the
fund  may  make  distributions  on  a  more  frequent  basis  to comply with the
distribution  requirements of the Internal Revenue Code of 1986, as amended (the
" Code" ). To the extent that net realized capital gain can be offset by capital
loss carryovers, it is the policy of the fund not to distribute such gain.

(d) Federal income taxes: It is the policy of the fund to continue to qualify as
a  regulated  investment company, if such qualification is in the best interests
of  its  shareholders,  by complying with the applicable provisions of the Code,
and  to  make  distributions  of  taxable  income  sufficient to relieve it from
substantially all Federal income and excise taxes.

The  fund  has  an  unused  capital  loss  carryover  of  approximately $619,000
available  for  Federal  income  tax  purposes  to be applied against future net
securities  profits,  if  any,  realized subsequent to February 29, 2000. If not
applied,  $200  of  the  carryover  expires  in fiscal 2003, $523,000 expires in
fiscal  2005, $43,300 expires in fiscal 2006, $52,000 expires in fiscal 2007 and
$500 expires in fiscal 2008.

                                                             The Fund

NOTES TO FINANCIAL STATEMENTS (CONTINUED)

At  February  29,  2000, the cost of investments for Federal income tax purposes
was substantially the same as the cost for financial reporting purposes (see the
Statement of Investments).

NOTE 2--Management Fee and Other Transactions With Affiliates:

(a)  Pursuant  to a management agreement with the Manager, the management fee is
computed  at  the  annual  rate  of .50 of 1% of the value of the fund's average
daily  net assets and is payable monthly. The Manager has undertaken, until such
time  as  it  gives  shareholders  at  least 90 days' notice to the contrary, to
reduce  the  management  fee  paid  by  the  fund, to the extent that the fund's
aggregate  expenses,  exclusive of taxes, brokerage fees, interest on borrowings
and  extraordinary  expenses, exceed an annual rate of .45 of 1% of the value of
the  fund' s average daily net assets. The reduction in management fee, pursuant
to  the undertaking, amounted to $1,824,495 during the period ended February 29,
2000.

(b)  Under  the  Shareholder  Services Plan, the fund reimburses Dreyfus Service
Corporation,  a  wholly-owned subsidiary of the Manager, an amount not to exceed
an  annual rate of .25 of 1% of the value of the fund's average daily net assets
for certain allocated expenses of providing personal services and/or maintaining
shareholder  accounts.  The  services  provided  may  include  personal services
relating  to  shareholder  accounts,  such  as  answering  shareholder inquiries
regarding  the  fund  and  providing reports and other information, and services
related  to  the  maintenance  of  shareholder accounts. During the period ended
February  29,  2000,  the  fund was charged $825,168 pursuant to the Shareholder
Services Plan.

The  fund  compensates  Dreyfus Transfer, Inc., a wholly-owned subsidiary of the
Manager,   under  a  transfer  agency  agreement  for  providing  personnel  and
facilities  to  perform transfer agency services for the fund. During the period
ended  February 29, 2000, the fund was charged $155,703 pursuant to the transfer
agency agreement.


(c)  Each  trustee  who  is  not  an  "affiliated  person" as defined in the Act
receives from the fund an annual fee of $1,500 and an attendance fee of $250 per
meeting.  The  Chairman  of  the  Board  receives  an  additional  25%  of  such
compensation.

NOTE 3--Subsequent Event:

At a meeting of the fund's Board of Trustees held on February 9, 2000, the Board
approved  the  termination  of  the  fund' s Distribution Agreement with Premier
Mutual  Fund  Services,  Inc.,  and  approved  a new Distribution Agreement with
Dreyfus Service Corporation. The new Distribution Agreement with Dreyfus Service
Corporation became effective on March 22, 2000.

                                                             The Fund

REPORT OF INDEPENDENT AUDITORS

Shareholders and Board of Trustees

Dreyfus BASIC U.S. Government Money Market Fund

We  have audited the accompanying statement of assets and liabilities of Dreyfus
BASIC U.S. Government Money Market Fund, including the statement of investments,
as  of  February  29, 2000, and the related statement of operations for the year
then  ended, the statement of changes in net assets for each of the two years in
the  period then ended, and financial highlights for each of the years indicated
therein.   These   financial   statements   and  financial  highlights  are  the
responsibility  of  the  Fund' 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 auditing standards generally accepted
in the United States. 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  and  financial  highlights.  Our procedures included
confirmation  of securities owned as of February 29, 2000 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
Dreyfus  BASIC  U.S.  Government  Money  Market  Fund  at February 29, 2000, the
results of its operations for the year then ended, the changes in its net assets
for each of the two years in the period then ended, and the financial highlights
for  each  of  the  indicated  years,  in  conformity with accounting principles
generally accepted in the United States.


New York, New York

April 3, 2000



IMPORTANT TAX INFORMATION (Unaudited)

For  state  individual income tax purposes, the fund hereby designates 75.56% of
the  ordinary  income  dividends  paid during its fiscal year ended February 29,
2000  as  attributable  to interest income from direct obligations of the United
States.  Such dividends are currently exempt from taxation for individual income
tax purposes in most states, including New York, California, and the District of
Columbia.

                                                             The Fund

                                                           For More Information

                        Dreyfus BASIC U.S. Government Money Market Fund

                        200 Park Avenue

                        New York, NY 10166

                            Manager

                        The Dreyfus Corporation

                        200 Park Avenue

                        New York, NY 10166

                            Custodian

                        The Bank of New York

                        100 Church Street

                        New York, NY 10286

                            Transfer Agent &

                            Dividend Disbursing Agent

                        Dreyfus Transfer, Inc.

                        P.O. Box 9671

                        Providence, RI 02940

                            Distributor

                        Dreyfus Service Corporation

                        200 Park Avenue

                        New York, NY 10166

To obtain information:

BY TELEPHONE Call 1-800-645-6561

BY MAIL  Write to:  The Dreyfus Family of Funds 144 Glenn Curtiss Boulevard
Uniondale, NY 11556-0144

BY E-MAIL  Send your request to [email protected]

ON THE INTERNET  Information can be viewed online or downloaded from:

http://www.dreyfus.com

(c) 2000 Dreyfus Service Corporation                                   124AR002





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