<PAGE> PAGE 1
000 B000000 12/31/96
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001 A000000 MUTUAL OF AMERICA INSTITUTIONAL FUNDS INC.
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001 C000000 2122241600
002 A000000 320 PARK AVE
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002 C000000 NY
002 D010000 10022
003 000000 Y
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006 000000 N
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007 C010600 6
007 C010700 7
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008 D01AA01 NEW YORK
008 D02AA01 NY
008 D03AA01 10103
010 A00AA01 MUTUAL OF AMERICA LIFE INSURANCE COMPANY
010 C01AA01 NEW YORK
010 C02AA01 NY
010 C03AA01 10103
011 A00AA01 MUTUAL OF AMERICA LIFE INSURANCE COMPANY
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011 C01AA01 NEW YORK
011 C02AA01 NY
011 C03AA01 10103
<PAGE> PAGE 2
013 A00AA01 ARTHUR ANDERSEN LLP
013 B01AA01 NEW YORK
013 B02AA01 NY
013 B03AA01 10105
014 A00AA01 MUTUAL OF AMERICA LIFE INSURANCE COMPANY
014 B00AA01 8-15356
014 A00AA02 MUTUAL OF AMERICA SECURITIES CORP.
014 B00AA02 8-43278
015 A00AA01 INVESTORS FIDUCIARY TRUST COMPANY
015 B00AA01 C
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015 C02AA01 MO
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 9
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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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SIGNATURE BRIAN KEOGH
TITLE MANAGER
Board of Directors
Mutual of America Institutional Funds, Inc.:
In planning and performing our audit of the
financial statements of Mutual of America
Institutional Funds, Inc.
for the year ended December 31, 1996, we
considered its internal control structure, 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 the internal control structure.
The management of Mutual of America Institutional
Funds, Inc. is responsible for establishing and
maintaining an internal control structure. In
fulfilling this responsibility, estimates and
judgments by
management are required to assess the expected
benefits and related costs of internal control
structure
policies and procedures. The objectives of an
internal control structure are to provide
management with
reasonable, but not absolute, assurance that assets
are safeguarded against loss from unauthorized use
or
disposition and that transactions are executed in
accordance with management's authorization and
recorded
properly to permit preparation of financial
statements in conformity with generally accepted
accounting
principles.
Because of inherent limitations in any internal
control structure, errors or irregularities may occur
and not
be detected. Also, projection of any evaluation of
the structure 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 the internal control structure
would not necessarily disclose all matters in the
internal
control structure 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 the
specific internal control structure elements does not
reduce to a relatively low level the risk that errors or
irregularities in amounts that would be material 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 the
internal control structure, including procedures for
safeguarding securities, that we consider to be
material weaknesses as defined above as of
December 31, 1996.
This report is intended solely for the information
and use of management and the Securities and
Exchange
Commission.
[SIGNATURE ON FILE WITH ORIGINAL]
New York, New York
February 21, 1997
