SBA loan basics
Short answer
Most SBA 7(a) loans have variable interest rates, typically linked to the Prime Rate, plus an additional percentage set by the lender. The SBA sets caps on these rates.
SBA 7(a) loans feature maximum interest rates set by the SBA, which vary based on the loan size and maturity. Lenders offer rates that are either fixed or variable, with variable rates being common. These variable rates are usually indexed to a base rate such as the Wall Street Journal Prime Rate, to which a lender's spread is added.
A $500,000 SBA 7(a) loan might be priced at "Prime + 2.25%". If the Prime Rate is 8.50%, the borrower's interest rate would be 10.75%, subject to any SBA maximums for that loan amount and term.
Insider move
Lenders must ensure their offered interest rates comply with the SBA's maximum allowable rates. They also evaluate the borrower's financial stability to manage potential rate increases with variable rate loans.
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 2026-06-13. 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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