SBA Loan Payment Calculator
SBA loans come with long terms, competitive rates, and a guarantee fee. Enter your loan details to see the monthly payment and true total cost.
Last updated: October 2026
SBA loan details
What SBA loans are
SBA loans are small-business loans made by banks and lenders but partially guaranteed by the U.S. Small Business Administration. That guarantee, usually 75% to 85% of the loan, lets lenders offer longer terms and lower rates than a conventional business loan, because the government absorbs most of the loss if the borrower defaults. The flagship 7(a) program covers working capital, equipment, and real estate; the 504 program focuses on major fixed assets like buildings and heavy machinery.
The guarantee fee
The guarantee is not free. Borrowers pay an SBA guarantee fee, typically 2% to 3.5% of the guaranteed portion, with the exact percentage set by SBA fee schedules that change yearly. Most borrowers finance the fee into the loan rather than paying cash at closing, which means you pay interest on the fee too. This calculator follows that common practice: the fee is added to the loan amount before the payment is computed. Treat the fee as an estimate and confirm the current schedule with your lender, since SBA adjusts it.
Monthly payment = P x r / (1 - (1 + r)-n)
The payment itself uses standard amortization on the financed amount: P is the loan plus the financed fee, r is APR divided by 12, and n is the term in months.
Worked example
A $250,000 SBA 7(a) loan at 8.5% APR for 10 years with a 3% guarantee fee: the fee is $7,500, so the financed amount is $257,500. The monthly rate is 0.085/12 = 0.007083 and n = 120, giving a monthly payment of $3,192.63. Total of payments = $3,192.63 x 120 = $383,116, of which $125,616 is interest. The true total cost of the $250,000 loan is about $383,116: the fee plus ten years of interest roughly add 53% on top of the amount borrowed.
SBA loan terms and rates
SBA 7(a) rates are typically quoted as prime plus a spread, often landing between 7% and 11% in recent years, with maximum spreads set by SBA rules. Terms run up to 10 years for working capital and equipment and up to 25 years for real estate, which is far longer than most conventional business loans and a big reason the payments stay manageable. Longer terms mean lower payments but much more total interest, so match the term to the asset's useful life: do not take 10 years to pay for equipment that lasts 5.
| Program | Typical use | Max term |
|---|---|---|
| 7(a) | Working capital, equipment, real estate | 10 years (25 for real estate) |
| 504 | Major fixed assets, buildings | 20 to 25 years |
| Microloan | Small startups, up to $50,000 | 6 years |
Who qualifies
SBA lenders look for a reasonable credit score (typically 650+ for 7(a), higher is better), at least a couple of years in business or a strong business plan, demonstrated cash flow to cover the payment, and usually collateral plus a personal guarantee from owners with 20%+ stakes. Approval takes longer than conventional loans, often 30 to 90 days, because both the lender and the SBA review the file. Start the application before you need the money.
Reducing your total cost
Shorten the term if cash flow allows: a 7-year term instead of 10 cuts total interest substantially. Negotiate the spread over prime with competing lenders, since SBA sets maximums, not fixed rates. Pay the fee in cash at closing if you can, rather than financing it and paying interest on it for a decade. And prepay when possible: most SBA loans allow prepayment, though some 7(a) loans with longer terms carry a prepayment penalty in the first few years.
SBA Loan FAQs
What is an SBA loan?
An SBA loan is a small-business loan issued by a bank or lender and partially guaranteed by the U.S. Small Business Administration. The guarantee lets lenders offer longer terms and lower rates than conventional business loans. The 7(a) program is the most common, covering working capital, equipment, and real estate.
What is the SBA guarantee fee?
A one-time fee for the government guarantee, typically 2% to 3.5% of the guaranteed portion, set by SBA fee schedules that change yearly. Most borrowers finance it into the loan rather than paying cash at closing. This calculator treats the fee percent as an estimate.
What are typical SBA loan rates and terms?
SBA 7(a) rates are usually quoted as prime plus a spread, often landing between 7% and 11%, with maximum spreads capped by SBA rules. Terms run up to 10 years for working capital and up to 25 years for real estate.
Do I need collateral for an SBA loan?
Usually yes, plus a personal guarantee from owners holding 20% or more of the business. The SBA requires lenders to collateralize to the maximum extent possible, though loans are not automatically declined for lack of full collateral.
How long does SBA loan approval take?
Typically 30 to 90 days from application to funding, because both the lender and the SBA review the file. Express programs can move faster for smaller amounts. Apply well before you need the funds.
Can I prepay an SBA loan?
Most SBA loans allow prepayment, which saves interest. Some 7(a) loans with maturities of 15 years or more carry a prepayment penalty during the first few years, so check your loan terms before paying extra.
What is the difference between SBA 7(a) and 504 loans?
7(a) is the general-purpose program for working capital, equipment, inventory, and real estate with terms up to 10 or 25 years. 504 is specifically for major fixed assets like buildings and heavy equipment, with 20 to 25 year terms and a different structure involving a Certified Development Company.