<PAGE> PAGE 1
000 B000000 09/30/1999
000 C000000 0000088498
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 SECURITY INCOME FUND
001 B000000 811-2120
001 C000000 7854313127
002 A000000 700 HARRISON
002 B000000 TOPEKA
002 C000000 KS
002 D010000 66636
002 D020000 0001
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 5
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C020800 CAPITAL PRESERVATION SERIES
007 C030800 N
007 C010900 9
007 C011000 10
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
027 000000 Y
077 A000000 Y
077 B000000 Y
077 D000000 Y
077 Q010000 Y
<PAGE> PAGE 2
078 000000 N
010 A000801 SECURITY MANAGEMENT COMPANY, LLC
010 B000801 84-01497
010 C010801 TOPEKA
010 C020801 KS
010 C030801 66636
010 C040801 0001
011 A000801 SECURITY DISTRIBUTORS, INC.
011 B000801 8-10781
011 C010801 TOPEKA
011 C020801 KS
011 C030801 66636
011 C040801 0001
012 A000801 SECURITY MANAGEMENT COMPANY, LLC
012 B000801 84-01497
012 C010801 TOPEKA
012 C020801 KS
012 C030801 66636
012 C040801 0001
013 A000801 ERNST & YOUNG LLP
013 B010801 KANSAS CITY
013 B020801 MO
013 B030801 64105
013 B040801 2143
015 A000801 UMB BANK, N.A.
015 B000801 C
015 C010801 KANSAS CITY
015 C020801 MO
015 C030801 64106
015 E010801 X
018 000800 Y
019 A000800 Y
019 B000800 35
019 C000800 SECURITYFU
028 A010800 0
028 A020800 0
028 A030800 0
028 A040800 0
028 B010800 5000
028 B020800 0
028 B030800 0
028 B040800 0
028 C010800 20025
028 C020800 0
028 C030800 0
028 C040800 0
028 D010800 200
028 D020800 45
028 D030800 0
028 D040800 0
028 E010800 16462
<PAGE> PAGE 3
028 E020800 120
028 E030800 0
028 E040800 16343
028 F010800 172
028 F020800 118
028 F030800 0
028 F040800 20
028 G010800 41859
028 G020800 283
028 G030800 0
028 G040800 16363
028 H000800 0
030 A000800 0
030 B000800 0.00
030 C000800 0.00
031 A000800 0
031 B000800 0
032 000800 0
033 000800 0
034 000800 Y
035 000800 0
036 A000800 N
036 B000800 0
037 000800 N
038 000800 0
039 000800 N
040 000800 Y
041 000800 Y
042 A000800 0
042 B000800 0
042 C000800 100
042 D000800 0
042 E000800 0
042 F000800 0
042 G000800 0
042 H000800 0
043 000800 28
044 000800 0
045 000800 N
048 000800 0.000
048 A010800 0
048 A020800 0.000
048 B010800 0
048 B020800 0.000
048 C010800 0
048 C020800 0.000
048 D010800 0
048 D020800 0.000
048 E010800 0
048 E020800 0.000
048 F010800 0
<PAGE> PAGE 4
048 F020800 0.000
048 G010800 0
048 G020800 0.000
048 H010800 0
048 H020800 0.000
048 I010800 0
048 I020800 0.000
048 J010800 0
048 J020800 0.000
048 K010800 0
048 K020800 0.000
055 A000800 N
055 B000800 N
056 000800 N
057 000800 N
058 A000800 N
059 000800 Y
060 B000800 Y
061 000800 20
062 A000800 N
062 B000800 0.0
062 C000800 0.0
062 D000800 0.0
062 E000800 0.0
062 F000800 0.0
062 G000800 0.0
062 H000800 0.0
062 I000800 0.0
062 J000800 0.0
062 K000800 0.0
062 L000800 0.0
062 M000800 0.0
062 N000800 0.0
062 O000800 0.0
062 P000800 0.0
062 Q000800 0.0
062 R000800 0.0
063 A000800 0
063 B000800 0.0
066 A000800 Y
066 B000800 N
066 C000800 N
066 D000800 N
066 E000800 N
066 F000800 Y
066 G000800 N
067 000800 N
068 A000800 N
068 B000800 N
069 000800 N
070 A010800 Y
<PAGE> PAGE 5
070 A020800 N
070 B010800 Y
070 B020800 N
070 C010800 Y
070 C020800 N
070 D010800 Y
070 D020800 N
070 E010800 Y
070 E020800 N
070 F010800 Y
070 F020800 N
070 G010800 Y
070 G020800 N
070 H010800 Y
070 H020800 N
070 I010800 Y
070 I020800 N
070 J010800 N
070 J020800 N
070 K010800 Y
070 K020800 Y
070 L010800 Y
070 L020800 N
070 M010800 Y
070 M020800 N
070 N010800 Y
070 N020800 N
070 O010800 Y
070 O020800 N
070 P010800 Y
070 P020800 Y
070 Q010800 N
070 Q020800 N
070 R010800 N
070 R020800 N
071 A000800 0
071 B000800 0
071 C000800 0
071 D000800 0
072 A000800 5
072 B000800 493
072 C000800 0
072 D000800 0
072 E000800 0
072 F000800 15
072 G000800 7
072 H000800 0
072 I000800 0
072 J000800 0
072 K000800 0
072 L000800 0
<PAGE> PAGE 6
072 M000800 0
072 N000800 11
072 O000800 0
072 P000800 0
072 Q000800 0
072 R000800 2
072 S000800 0
072 T000800 28
072 U000800 0
072 V000800 0
072 W000800 5
072 X000800 68
072 Y000800 0
072 Z000800 425
072AA000800 0
072BB000800 33
072CC010800 33
072CC020800 0
072DD010800 291
072DD020800 134
072EE000800 0
073 A010800 0.0000
073 A020800 0.0000
073 B000800 0.0000
073 C000800 0.0000
074 A000800 0
074 B000800 0
074 C000800 0
074 D000800 0
074 E000800 0
074 F000800 0
074 G000800 0
074 H000800 0
074 I000800 25779
074 J000800 0
074 K000800 0
074 L000800 0
074 M000800 0
074 N000800 25779
074 O000800 0
074 P000800 142
074 Q000800 0
074 R010800 0
074 R020800 0
074 R030800 0
074 R040800 31
074 S000800 0
074 T000800 25606
074 U010800 2526
074 U020800 52
074 V010800 0.00
<PAGE> PAGE 7
074 V020800 0.00
074 W000800 0.0000
074 X000800 22
074 Y000800 0
075 A000800 0
075 B000800 12977
076 000800 0.00
080 A000800 NATIONAL UNION FIRE INSURANCE CO.
080 C000800 6875
081 A000800 Y
081 B000800 33
082 A000800 N
082 B000800 0
083 A000800 N
083 B000800 0
084 A000800 N
084 B000800 0
085 A000800 Y
085 B000800 N
SIGNATURE AMY J. LEE
TITLE SECRETARY
EXHIBIT 77Q-1
RESOLVED, that the Bylaws of SBL Fund, Security Equity Fund, Security Ultra
Fund, Security Growth and Income Fund, Security Cash Fund, Security Income
Fund, Security Municipal Bond Fund, and Advisor's Fund are hereby amended
to allow shareholders to vote, in addition to voting in person or by proxy,
by telephone or through the Internet.
EXHIBIT 77B: Accountant's Report on Internal Control
Report of Independent Auditors
To the Board of Directors
Security Income Fund - Security Capital Preservation Fund
In planning and performing our audit of the financial statements of Security
Capital Preservation Fund (the "Fund") for the year ended September 30, 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, and not to provide assurance on internal control.
The management of the 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 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 at
September 30, 1999.
This report is intended solely for the information and use of the board of
directors and management of Security Capital Preservation 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.
ERNST & YOUNG LLP
November 8, 1999
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000088498
<NAME> SECURITY INCOME FUND
<SERIES>
<NUMBER> 081
<NAME> CAPITAL PRESERVATION SERIES - A
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 5-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> MAY-03-1999
<PERIOD-END> SEP-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 25952
<INVESTMENTS-AT-VALUE> 25952
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 25952
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 173
<TOTAL-LIABILITIES> 173
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 25779
<SHARES-COMMON-STOCK> 2526
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (33)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 33
<NET-ASSETS> 25779
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 493
<OTHER-INCOME> 0
<EXPENSES-NET> 68
<NET-INVESTMENT-INCOME> 425
<REALIZED-GAINS-CURRENT> (33)
<APPREC-INCREASE-CURRENT> 33
<NET-CHANGE-FROM-OPS> 425
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 291
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2513
<NUMBER-OF-SHARES-REDEEMED> 2
<SHARES-REINVESTED> 15
<NET-CHANGE-IN-ASSETS> 25261
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 15
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 68
<AVERAGE-NET-ASSETS> 12977
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> .22
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> .22
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.00
<EXPENSE-RATIO> .77
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000088498
<NAME> SECURITY INCOME FUND
<SERIES>
<NUMBER> 082
<NAME> CAPITAL PRESERVATION SERIES - B
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 5-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> MAY-03-1999
<PERIOD-END> SEP-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 25952
<INVESTMENTS-AT-VALUE> 25952
<RECEIVABLES> 0
<ASSETS-OTHER> 25952
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 0
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 173
<TOTAL-LIABILITIES> 173
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 25779
<SHARES-COMMON-STOCK> 32
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (33)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 33
<NET-ASSETS> 25779
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 493
<OTHER-INCOME> 0
<EXPENSES-NET> 68
<NET-INVESTMENT-INCOME> 425
<REALIZED-GAINS-CURRENT> (33)
<APPREC-INCREASE-CURRENT> 33
<NET-CHANGE-FROM-OPS> 425
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 66
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 840
<NUMBER-OF-SHARES-REDEEMED> 814
<SHARES-REINVESTED> 6
<NET-CHANGE-IN-ASSETS> 324
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 15
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 68
<AVERAGE-NET-ASSETS> 12977
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> .20
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> .20
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.00
<EXPENSE-RATIO> 1.40
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000088498
<NAME> SECURITY INCOME FUND
<SERIES>
<NUMBER> 083
<NAME> CAPITAL PRESERVATION SERIES - C
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 5-MOS
<FISCAL-YEAR-END> SEP-30-1999
<PERIOD-START> MAY-03-1999
<PERIOD-END> SEP-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 25952
<INVESTMENTS-AT-VALUE> 25952
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 25952
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 173
<TOTAL-LIABILITIES> 173
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 25779
<SHARES-COMMON-STOCK> 19
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (33)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 33
<NET-ASSETS> 25779
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 493
<OTHER-INCOME> 0
<EXPENSES-NET> 68
<NET-INVESTMENT-INCOME> 425
<REALIZED-GAINS-CURRENT> (33)
<APPREC-INCREASE-CURRENT> 33
<NET-CHANGE-FROM-OPS> 425
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 68
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 833
<NUMBER-OF-SHARES-REDEEMED> 821
<SHARES-REINVESTED> 7
<NET-CHANGE-IN-ASSETS> 194
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 15
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 68
<AVERAGE-NET-ASSETS> 12977
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> .21
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> .21
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.00
<EXPENSE-RATIO> 0
</TABLE>
EXHIBIT 77D: Policies with respect to security investments
WHEREAS, certain states formerly imposed restrictions on the investments
which could be made by registered investment companies, which restrictions
were not required by the Investment Company Act of 1940 (the "1940 Act");
WHEREAS, the National Securities Market Improvement Act of 1996 pre-empted
the states' ability to impose investment restrictions on investment
companies registered under the 1940 Act; and
WHEREAS, the Board of Directors of Security Equity Fund, Security Growth
and Income Fund, Security Ultra Fund, SBL Fund, Security Income Fund,
Security Municipal Bond Fund and Security Cash Fund has determined that it
is in the best interests of the Security Funds and their respective
shareholders to remove the state law investment limitations from their
respective registration statements;
NOW THEREFORE, BE IT RESOLVED, that the appropriate officers of the
Security Funds are authorized and directed to remove the following
investment limitations from the registration statements of the Security
Fund:
The investment limitation that (i) a Fund limit the aggregate market value
of all securities or currencies covering call or put options to 25% of the
market value of the Fund's net assets, (ii) a Fund will not write a covered
put option if as a result, the aggregate market value of all portfolio
securities or currencies covering put or call options exceeds 25% of the
market value of the Fund's net assets, and (iii) a Fund not commit more
than 5% of its assets to premiums when purchasing call and put options.