SBA loan basics
Short answer
SBA 7(a) loan interest rates are typically variable, tied to a base rate like the Prime Rate, plus a spread. The SBA sets maximum allowable rates, not specific rates.
SBA 7(a) loan rates are variable and capped by the SBA. Lenders can charge an interest rate based on a commonly published base rate (such as the Wall Street Journal Prime Rate, LIBOR (for legacy loans) or SOFR) plus a fixed percentage spread. The maximum spread allowed depends on the loan amount and term. This structure ensures competitive pricing while allowing for market fluctuations.
A borrower secures a $300,000 SBA 7(a) loan. The lender offers a rate of Prime + 2.75%. If the Prime Rate is 8.50%, the initial interest rate would be 11.25%.
Lenders must ensure the proposed interest rate (base rate plus spread) does not exceed the maximum allowed by SBA policy based on the loan size and term. They also need to clearly communicate the variable nature of the rate to borrowers.
7(a) Loan Program — Terms, Conditions, and Eligibility
U.S. Small Business Administration · Official SBA source
SOP 50 10 - Lender and Development Company Loan Programs
7(a) Alternative Base Rate Options
Last checked 2026-06-13. Official sources control — verify before relying on any rule for a live deal.
Last reviewed 2026-06-13 · SBA sources checked through 2026-06-13. DealRoom analysis of public SBA 7(a) lending records (FY2020–present). Grounded in the current SBA rulebook; verify against the official sources above before relying on it for a live deal. Not legal, tax, or financial advice, and not an approval decision.
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