SBA loan basics
Short answer
SBA 7(a) loan interest rates can be either fixed or variable, depending on the lender and the terms negotiated. Most 7(a) loans are variable.
The SBA allows lenders to offer both fixed and variable interest rates, subject to maximum allowable rates. Variable rates are typically tied to a base rate like the Prime Rate, Term SOFR, or the SBA Peg Rate, plus a spread (margin) determined by the lender and capped by the SBA. Fixed rates are less common but are permitted.
A $500,000 SBA 7(a) loan might be offered at Prime + 2.75%, meaning if the Prime Rate is 8.50%, the borrower pays 11.25%, subject to adjustments as Prime changes.
Insider move
Lenders must adhere to the SBA's maximum interest rate caps, which vary by loan amount and term. They also ensure borrowers understand the implications of a variable rate, including potential payment fluctuations.
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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