SBA loan basics
Short answer
SBA 7(a) variable interest rates are typically capped at Prime Rate plus a spread, with the spread usually ranging from 2.25% to 4.75% depending on loan size and term.
The SBA sets maximum allowable spreads over the Prime Rate (or other approved base rates) for different loan amounts and maturities. For example, larger loans and shorter terms might have lower spreads, while smaller loans or longer terms may have higher spreads, but always within SBA caps.
If the Prime Rate is 8.50%, a borrower with a $500,000 loan might be offered an interest rate of Prime + 2.75%, resulting in a 11.25% rate. The specific spread will be negotiated with the lender within SBA maximums.
13 CFR Part 120 — Business Loans
Office of the Federal Register · Federal regulation
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 2026-06-14. Official sources control — verify before relying on any rule for a live deal.
Last reviewed 2026-06-14 · SBA sources checked through 2026-06-14. 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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