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<PAGE> PAGE 12
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<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .05
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<PER-SHARE-DISTRIBUTIONS> 0
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<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .70
<AVG-DEBT-OUTSTANDING> 0
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 153
<NAME> TREASURY CLASS 4
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JAN-31-1998
<PERIOD-START> FEB-01-1997
<PERIOD-END> JAN-31-1998
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<INVESTMENTS-AT-VALUE> 379181
<RECEIVABLES> 854
<ASSETS-OTHER> 163
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 380198
<PAYABLE-FOR-SECURITIES> 0
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<OTHER-ITEMS-LIABILITIES> 1485
<TOTAL-LIABILITIES> 1485
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<PAID-IN-CAPITAL-COMMON> 69069
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<SHARES-COMMON-PRIOR> 0
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<NET-ASSETS> 378713
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10244
<OTHER-INCOME> 0
<EXPENSES-NET> 804
<NET-INVESTMENT-INCOME> 9440
<REALIZED-GAINS-CURRENT> (9)
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<NET-CHANGE-FROM-OPS> 9431
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1214
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<NUMBER-OF-SHARES-SOLD> 194085
<NUMBER-OF-SHARES-REDEEMED> 125016
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 69069
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<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .95
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000701939
<NAME> SEI DAILY INCOME TRUST
<SERIES>
<NUMBER> 041
<NAME> CORPORATE DAILY
<MULTIPLIER> 1000
<S> <C>
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<PERIOD-END> JAN-31-1998
<INVESTMENTS-AT-COST> 71139
<INVESTMENTS-AT-VALUE> 71392
<RECEIVABLES> 565
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<TOTAL-ASSETS> 72033
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<TOTAL-LIABILITIES> 2462
<SENIOR-EQUITY> 69571
<PAID-IN-CAPITAL-COMMON> 69305
<SHARES-COMMON-STOCK> 34810
<SHARES-COMMON-PRIOR> 28060
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (3)
<ACCUMULATED-NET-GAINS> 16
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 253
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<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3482
<OTHER-INCOME> 0
<EXPENSES-NET> (206)
<NET-INVESTMENT-INCOME> 3276
<REALIZED-GAINS-CURRENT> 16
<APPREC-INCREASE-CURRENT> 306
<NET-CHANGE-FROM-OPS> 3598
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3276)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24250
<NUMBER-OF-SHARES-REDEEMED> (18508)
<SHARES-REINVESTED> 1008
<NET-CHANGE-IN-ASSETS> 6750
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (3)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 58
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 445
<AVERAGE-NET-ASSETS> 58370
<PER-SHARE-NAV-BEGIN> 2.00
<PER-SHARE-NII> .11
<PER-SHARE-GAIN-APPREC> .01
<PER-SHARE-DIVIDEND> (.11)
<PER-SHARE-DISTRIBUTIONS> 0
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<PER-SHARE-NAV-END> 1.99
<EXPENSE-RATIO> .35
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
To the Board of Trustees
of SEI Daily Income Trust:
In planning and performing our audit of the financial statements
of the SEI Daily Income Trust (the "Trust") for the year ended
January 31, 1998, we considered its internal controls, including
procedures 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 controls.
The management of the SEI Daily Income Trust is responsible
for establishing and maintaining internal controls. 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 objective of preparing financial statements for external
purposes that are fairly presented in conformity with generally
accepted accounting principles. Those controls include the
safeguarding of assets against unauthorized acquisition, use or
disposition.
Because of inherent limitations in internal controls, errors or fraud may
occur and not be detected. Also, projection of any evaluation of internal
controls 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 controls would not necessarily disclose all
matters in internal controls 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 any specific internal control components does not
reduce to a relatively low level the risk that errors 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 controls,
including procedures for safeguarding securities, that we consider to
be material weaknesses as defined above as of January 31, 1998.
This report is intended solely for the information and use of
management, the Board of Trustees and the Securities and Exchange
Commission.
ARTHUR ANDERSON LLP
Philadelphia, PA
March 6, 1998
