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Security Benefit Life Insurance Company 700 SW Harrison St.
Security Benefit Group, Inc. Topeka, Kansas 66636-0001
Security Distributors, Inc. (785) 431-3000
Security Management Company, LLC
May 10, 1999
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC 20549
Subj: Security Income Fund, File Nos.: 811-2120 and 2-38414
Security Municipal Bond Fund, File Nos.: 811-3225 and 2-73223
Security Cash Fund, File Nos.: 811-3073 and 2-68387
Dear Sir or Madam:
In accordance with the provisions of Rule 497(j) under the Securities Act of
1933, please accept this letter as certification that the Prospectus and
Statement of Additional Information for each of Security Income Fund, Security
Municipal Bond Fund and Security Cash Fund do not differ from that contained in
Post-Effective Amendment No. 63 to Security Income Fund's registration
statement, No. 19 to Security Municipal Bond Fund's registration statement and
No. 22 to Security Cash Fund's registration statement. These Post-Effective
Amendments were filed electronically on April 30, 1999.
If you have any questions concerning this filing, please contact me at
(785) 431-3321.
Sincerely,
CHRIS SWICKARD
Chris Swickard
Assistant Secretary
Security Income Fund
Security Municipal Bond Fund
Security Cash Fund
