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<PAGE> PAGE 2
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<PAGE> PAGE 3
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SIGNATURE MICHAEL TANSLEY
TITLE TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000717854
<NAME> ELFUN INCOME FUND
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> DEC-31-1999
<INVESTMENTS-AT-COST> 324797
<INVESTMENTS-AT-VALUE> 314017
<RECEIVABLES> 12027
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 326044
<PAYABLE-FOR-SECURITIES> 38744
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 19319
<TOTAL-LIABILITIES> 58063
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 284415
<SHARES-COMMON-STOCK> 24998
<SHARES-COMMON-PRIOR> 23719
<ACCUMULATED-NII-CURRENT> 248
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (5902)
<OVERDISTRIBUTION-GAINS> 0
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<NET-ASSETS> 267981
<DIVIDEND-INCOME> 438
<INTEREST-INCOME> 18041
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<EXPENSES-NET> (500)
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<REALIZED-GAINS-CURRENT> (5803)
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<ACCUMULATED-GAINS-PRIOR> 903
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<GROSS-EXPENSE> 500
<AVERAGE-NET-ASSETS> 274683
<PER-SHARE-NAV-BEGIN> 11.560
<PER-SHARE-NII> 0.730
<PER-SHARE-GAIN-APPREC> (0.800)
<PER-SHARE-DIVIDEND> (0.730)
<PER-SHARE-DISTRIBUTIONS> (0.040)
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</TABLE>
N-SAR for Elfun Income Fund
Item 77D:
On June 8, 1999, the Board of Trustees of the Elfun Income Fund voted
To increase the Fund's non-fundamental limitation on investments in
Mortgage dollar rolls from 10% to 25% of total Fund assets.
To the Board of Trustees and Shareholders of
the Elfun Income Fund:
In planning and performing our audit of the financial statements of the
Elfun Income Fund for the year ended December 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 the Elfun 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 the
safeguarding of assets against unauthorized acquisition, use or
disposition.
Because of inherent limitations in internal control, errors or
irregularities may occur and not be detected. Also, projection of any
evaluation of internal control to future periods is subject to the risks
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 errors or irregularities 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.
This report is intended solely for the information and use of management,
the Board of Trustees of the Elfun Income Fund, and the Securities and
Exchange Commission and is not intended to be and should not be used by
anyone other than these specified parties.
New York, New York
February 4, 2000
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