SBA loan basics
Short answer
SBA 7(a) loan interest rates are variable or fixed and are capped by the SBA, typically ranging from Prime Rate plus 2.25% to 4.75% for most loans, depending on the loan amount and term.
The SBA sets a maximum allowable interest rate for 7(a) loans based on the Prime Rate (or an alternative base rate) plus a permissible spread. The specific spread depends on the loan amount and maturity. Lenders negotiate the exact rate with the borrower within these caps.
If the Prime Rate is 8.50%, a small loan of $150,000 might have a maximum variable rate of Prime + 3.00% (11.50%). A larger loan of $1,000,000 could have a maximum variable rate of Prime + 2.25% (10.75%).
Insider move
Lenders consider their cost of funds, administrative expenses, the risk profile of the borrower, and market conditions when setting rates within SBA limits. They must comply with SBA rate caps to maintain the guaranty.
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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