INSTITUTIONAL DAILY INCOME FUND
NSAR-B, 1999-05-28
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<PAGE>
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SIGNATURE   BERNADETTE N. FINN
TITLE       SECRETARY

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>           6
<LEGEND>            The  schedule   contains   summary   financial   information
                    extracted  from  the  financial  statements  and  supporting
                    schedules  as of the end of the most  current  period and is
                    qualified in its  entirety by  reference  to such  financial
                    statements.
</LEGEND>
<CIK>               0000918267
<NAME>              Institutional Daily Income Fund
<SERIES>
<NUMBER>            1
<NAME>              U.S. Treasury Portfolio - Class A

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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>           6
<LEGEND>            The  schedule   contains   summary   financial   information
                    extracted  from  the  financial  statements  and  supporting
                    schedules  as of the end of the most  current  period and is
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</LEGEND>
<CIK>               0000918267
<NAME>              Institutional Daily Income Fund
<SERIES>
<NUMBER>            2
<NAME>              U.S. Treasury Portfolio - Class B

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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>           6
<LEGEND>            The  schedule   contains   summary   financial   information
                    extracted  from  the  financial  statements  and  supporting
                    schedules  as of the end of the most  current  period and is
                    qualified in its  entirety by  reference  to such  financial
                    statements.
</LEGEND>
<CIK>               0000918267
<NAME>              Institutional Daily Income Fund
<SERIES>
<NUMBER>            3
<NAME>              Money Market Portfolio - Class A

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<OVERDISTRIB-NII-PRIOR>       0
<OVERDIST-NET-GAINS-PRIOR>    0
<GROSS-ADVISORY-FEES>         472729
<INTEREST-EXPENSE>            0
<GROSS-EXPENSE>               1394785
<AVERAGE-NET-ASSETS>          393941314
<PER-SHARE-NAV-BEGIN>         1.00
<PER-SHARE-NII>               .05
<PER-SHARE-GAIN-APPREC>       0
<PER-SHARE-DIVIDEND>          .05
<PER-SHARE-DISTRIBUTIONS>     0
<RETURNS-OF-CAPITAL>          0
<PER-SHARE-NAV-END>           1.00
<EXPENSE-RATIO>               .45
[AVG-DEBT-OUTSTANDING]        0
[AVG-DEBT-PER-SHARE]          0


</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>           6
<LEGEND>            The  schedule   contains   summary   financial   information
                    extracted  from  the  financial  statements  and  supporting
                    schedules  as of the end of the most  current  period and is
                    qualified in its  entirety by  reference  to such  financial
                    statements.
</LEGEND>
<CIK>               0000918267
<NAME>              Institutional Daily Income Fund
<SERIES>
<NUMBER>            4
<NAME>              Money Market Portfolio - Class B

<S>                               <C>
<FISCAL-YEAR-END>             MAR-31-1999
<PERIOD-START>                APR-01-1998
<PERIOD-END>                  MAR-31-1999
<PERIOD-TYPE>                 12-MOS
<INVESTMENTS-AT-COST>         502816160
<INVESTMENTS-AT-VALUE>        502816160
<RECEIVABLES>                 971713
<ASSETS-OTHER>                0
<OTHER-ITEMS-ASSETS>          290748
<TOTAL-ASSETS>                504078621
<PAYABLE-FOR-SECURITIES>      0
<SENIOR-LONG-TERM-DEBT>       0
<OTHER-ITEMS-LIABILITIES>     701512
<TOTAL-LIABILITIES>           701512
<SENIOR-EQUITY>               0
<PAID-IN-CAPITAL-COMMON>      503377109
<SHARES-COMMON-STOCK>         503377109
<SHARES-COMMON-PRIOR>         336549942
<ACCUMULATED-NII-CURRENT>     0
<OVERDISTRIBUTION-NII>        0
<ACCUMULATED-NET-GAINS>       0
<OVERDISTRIBUTION-GAINS>      0
<ACCUM-APPREC-OR-DEPREC>      0
<NET-ASSETS>                  503377109
<DIVIDEND-INCOME>             0
<INTEREST-INCOME>             21415924
<OTHER-INCOME>                0
<EXPENSES-NET>                1186082
<NET-INVESTMENT-INCOME>       20229842
<REALIZED-GAINS-CURRENT>      4250
<APPREC-INCREASE-CURRENT>     0
<NET-CHANGE-FROM-OPS>         20234092
<EQUALIZATION>                0
<DISTRIBUTIONS-OF-INCOME>     20229842
<DISTRIBUTIONS-OF-GAINS>      4250
<DISTRIBUTIONS-OTHER>         0
<NUMBER-OF-SHARES-SOLD>       2374852730
<NUMBER-OF-SHARES-REDEEMED>   2227460988
<SHARES-REINVESTED>           19435425
<NET-CHANGE-IN-ASSETS>        166827167
<ACCUMULATED-NII-PRIOR>       0
<ACCUMULATED-GAINS-PRIOR>     0
<OVERDISTRIB-NII-PRIOR>       0
<OVERDIST-NET-GAINS-PRIOR>    0
<GROSS-ADVISORY-FEES>         472729
<INTEREST-EXPENSE>            0
<GROSS-EXPENSE>               1394785
<AVERAGE-NET-ASSETS>          393941314
<PER-SHARE-NAV-BEGIN>         1.00
<PER-SHARE-NII>               .05
<PER-SHARE-GAIN-APPREC>       0
<PER-SHARE-DIVIDEND>          .05
<PER-SHARE-DISTRIBUTIONS>     0
<RETURNS-OF-CAPITAL>          0
<PER-SHARE-NAV-END>           1.00
<EXPENSE-RATIO>               .20
[AVG-DEBT-OUTSTANDING]        0
[AVG-DEBT-PER-SHARE]          0


</TABLE>


                     REPORT OF CERTIFIED PUBLIC ACCOUNTANTS








To the Shareholders and
The Board of Trustees of
Institutional Daily Income Fund


In planning and  performing  our audit of the financial  statements of the Money
Market Portfolio and the U.S. Treasury  Portfolio of Institutional  Daily Income
Fund for the year ended March 31, 1999,  we  considered  its  internal  control,
including control activities for safeguarding securities,  in order to determine
our  auditing  procedures  for the  purpose  of  expressing  our  opinion on the
financial  statements and to comply with the  requirements of Form N-SAR, not to
provide assurance on internal control.


The  management  of   Institutional   Daily  Income  Fund  is  responsible   for
establishing   and   maintaining    internal   control.   In   fulfilling   this
responsibility, estimates and judgments by management are required to assess the
expected  benefits and related costs of controls.  Generally,  controls that are
relevant to an audit  pertain to the entity's  objective of preparing  financial
statements for external  purposes that are fairly  presented in conformity  with
generally accepted accounting principles. Those controls include safeguarding of
assets against unauthorized acquisition, use, or disposition.


Because of inherent  limitations in internal  control,  error or fraud may occur
and not be detected.  Also,  projection of any evaluation of internal control to
future periods is subject to the risk that it may become  inadequate  because of
changes in conditions or that the  effectiveness of the design and operation may
deteriorate.

Our consideration of internal control would not necessarily disclose all matters
in  internal   control  that  might  be  material   weaknesses  under  standards
established  by the  American  Institute  of  Certified  Public  Accountants.  A
material weakness is a condition in which the design or operation of one or more
of the internal control components does not reduce to a relatively low level the
risk  that  misstatements  caused  by error or fraud in  amounts  that  would be
material in relation to the financial statements being audited may occur and not
be  detected  within a timely  period  by  employees  in the  normal  course  of
performing  their assigned  functions.  However,  we noted no matters  involving
internal  control  and  its  operation,   including  controls  for  safeguarding
securities,  that we consider to be material  weaknesses  as defined above as of
March 31, 1999.


This report is intended solely for the  information  and use of management,  the
Board of Trustees of  Institutional  Daily  Income Fund and the  Securities  and
Exchange Commission.

                                                     McGladrey & Pullen, LLP


New York, New York
April 30, 1999





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