An SBA 7(a) rate is not whatever a lender feels like charging: the SBA caps it as a base rate (usually the prime rate) plus a maximum spread that shrinks as the loan grows. This page is the reference: both cap tables (variable and fixed), the guaranty-fee tiers, and a worked example turning a quote into a true APR. It links from — and does not duplicate — the 504 vs 7(a) hub, where program choice is decided; the 504’s entirely different rate machinery is on the 504 rates page.
General information, not a loan offer. Maximums per SBA.gov’s 7(a) rate rules; the worked example uses a 7.00% prime rate for illustration — check the current WSJ prime before computing your own ceiling.
| Loan amount | Max spread | Max rate at 7.00% prime (example) |
|---|---|---|
| $50,000 or less | prime + 6.5% | 13.50% |
| $50,001 – $250,000 | prime + 6.0% | 13.00% |
| $250,001 – $350,000 | prime + 4.5% | 11.50% |
| Over $350,000 | prime + 3.0% | 10.00% |
| These are the SBA.gov maximums. Lenders may charge less (good borrowers at strong lenders routinely price inside the cap); they may not charge more. Most 7(a) loans are variable at prime + spread, adjusting with the prime rate — NerdWallet’s published maximums (variable 10–13.5% at a 7% prime) are this same table. |
Fixed 7(a) loans price off the same framework with SBA-published maximums that sit above the variable equivalents (NerdWallet/Fit Small Business put typical fixed maximums around 12–15% depending on size). Fixed 7(a) money is uncommon for larger loans — most borrowers take the variable cap; if a lender quotes fixed, compare it against the fixed maximum table on SBA.gov for your loan size before signing.
The SBA charges the lender a guaranty fee on the guaranteed portion of the loan, and lenders pass it to the borrower. FY2026 tiers (per sba7a.loans’ rate-and-fee calculator, summarising the SBA fee schedule):
| Loan amount | Guaranty fee (on the guaranteed portion) |
|---|---|
| Up to $150,000 | 2% |
| $150,001 – $700,000 | 3% |
| $700,001 – $1,000,000 | 3.5% |
| Over $1,000,000 | 3.5% on the first $1M of guaranteed portion + 3.75% on the remainder |
| Loans with a maturity of 12 months or less carry a flat 0.25% guaranty fee regardless of size. Two FY2026 categories pay 0%: loans to manufacturers (NAICS 31–33) up to $950,000, and SBA Express loans to veteran-owned businesses (per SBA Information Notice 5000-872051). The lender also pays the SBA an annual service fee of 0.55% of the outstanding guaranteed balance — that one may not be passed to the borrower. | |
| Plus: packaging fees (must be disclosed and reasonable), and the lender’s own closing costs. On loans of $500,000+, an SBA guaranty fee alone can run into five figures — it belongs in every true-cost comparison. |
$400,000 7(a) loan, 10-year term, quoted at prime (7.00%) + 3.00% = 10.00% (at the cap for its size). Monthly payment at 10%: $5,286. Guaranty fee: the guaranteed portion is 85% ($340,000) on a loan this size; at the 3%-tier structure the fee computes to roughly $10,200 financed into the deal, lifting the effective APR to roughly 10.6% — which is Bay Street Lending’s caution made numeric: the 7(a) caps are interest-rate ceilings, not APR limits; fees increase the effective APR above the cap.
What is the maximum interest rate on an SBA 7(a) loan? The cap table above — by loan size, prime + 6.5% down to prime + 3.0% for variable loans (SBA.gov’s published maximums, reproduced by NerdWallet). At a 7% prime, no legal 7(a) variable rate exceeds 13.5%.
Are SBA 7(a) rates fixed or variable? Either, but variable dominates: Fit Small Business lists typical fixed rates at 12–15% and variable at 10–13.5% (at its survey’s prime). Variable 7(a) rates reset with the WSJ prime — model a +2% scenario before taking a 25-year variable loan.
How is an SBA 7(a) rate calculated? Negotiated rate = base rate (usually prime) + spread, capped by loan size (QuickBooks and Nav both explain it this way). Your credit, collateral, and lender competition decide where inside the cap you land.
Do SBA fees count toward the rate cap? No — Bay Street’s exact warning: the caps are interest-rate ceilings, not APR limits; the guaranty and packaging fees sit on top, raising your effective APR (see the worked example).
What is the SBA guaranty fee on a 7(a) loan? A one-time fee on the guaranteed portion, tiered by loan size — FY2026 tiers of 2% / 3% / 3.5% / 3.75% per sba7a.loans’ summary of the SBA schedule. The SBA resets fees most fiscal years; confirm the current fee notice for your closing year.
General information, not a loan offer. Sources: SBA.gov 7(a) loans page (spread caps) and fee schedules; NerdWallet and Fit Small Business rate tables; QuickBooks/Nav explainers; Bay Street Lending (APR caution); sba7a.loans fee calculator (FY2026 tiers). Reviewed 2026-10-22.