<PAGE>
Filed Pursuant to Rule 424(b)(3)
File No. 333-87333
- --------------------------------------------------------------------------------
ABFS Investment Notes
Begin Earning These High Rates
Prospectus Supplement dated November 1, 1999.
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
TERM RATE ANNUAL YIELD* BONUS BONUS RATE BONUS YIELD
<S> <C> <C> <C> <C> <C>
3-5 Months 7.50% 7.78% NA NA NA
6-11 Months 8.25% 8.59% +.25 8.50% 8.87%
12-17 Months 8.85% 9.25% +.25 9.10% 9.52%
18-23 Months 9.10% 9.52% +.25 9.35% 9.80%
24-29 Months 9.35% 9.80% +.25 9.60% 10.07%
30-35 Months 9.60% 10.07% +.25 9.85% 10.35%
36-47 Months 9.85% 10.35% +.25 10.10% 10.62%
48-59 Months 10.20% 10.73% +.25 10.45% 11.01%
60-83 Months 11.00% 11.62% +.25 11.25% 11.90%
84-119 Months 11.10% 11.73% +.25 11.35% 12.01%
120 Months 11.35% 12.01% +.25 11.60% 12.29%
Money Market Notes 6.15% 6.34% NA NA NA
</TABLE>
Minimum for Investment Notes and Money Market Notes $1,000
For more information, call
1-800-776-4001
[ABFS LOGO]
2255 Glades Road BalaPointe Office Centre 2425 East Camelback Road
Suite 311E 111 Presidential Boulevard Suite 1065
Boca Raton, FL 33431 Bala Cynwyd, PA 19004 Phoenix, AZ 85016
- --------------------------------------------------------------------------------
AMERICAN BUSINESS FINANCIAL SERVICES, INC. IS A NASDAQ LISTED COMPANY (ABFI).
- --------------------------------------------------------------------------------
An offer can only be made by the Prospectus dated November 1, 1999, delivered in
conjunction with this Rate Supplement dated November 1, 1999. See "Risk Factors"
in the Prospectus for a discussion of certain factors which should be considered
in connection with an investment in the Notes.
*Interest is compounded daily based on a 365-day year. The effective annual
yield assumes all interest remains invested for 365 days. Subordinated
Investment Notes represent obligation of the Company and are not certificates
of deposit or insured by the FDIC or any governmental or private entity. This
announcement is neither an offer to sell nor a solicitation of an offer to
buy Subordinated Investment Notes. This offer is made by prospectus only. The
rates for the Investment Notes are available through November 22, 1999. The
interest rate paid on the Money Market Notes is subject to change from time
to time at the Company's sole discretion provided that such rate shall not be
reduced below 4.0% per year. Written notice of any decrease in rate will be
provided to holders of such notes at least 14 days prior to the effective
date of the change. No notice will be provided in connection with an increase
in the interest rate paid on such notes.