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Business Loan

SBA 7(a) Loan Calculator

Estimate SBA 7(a) payments for working capital, equipment, real estate, or a business purchase. The calculator adds the upfront guarantee fee to the balance, since most borrowers finance it rather than pay cash at closing.

By Michael Torey, Financial WriterLast reviewed: July 16, 2026
$500,000
7.75%

Monthly Payment

$6,135.54

SBA Guarantee Fee

$11,250.00

Total Financed

$511,250.00

Total Interest

$225,015.22

Total Cost

$736,265.22

How your rate gets set

The SBA caps 7(a) pricing but does not set it. Rates are quoted as a spread over a base, usually the prime rate published in the Wall Street Journal, and the SBA limits how wide that spread can go based on the size of the loan, with smaller loans allowed wider spreads. The lender negotiates your actual rate underneath that ceiling, and borrowers with clean financials routinely land below it. The permitted spreads are revised from time to time, so treat any chart you find online as a snapshot and confirm the current maximums with your lender. Most 7(a) loans are variable and reset quarterly as prime moves, which matters over a 10 or 25 year term. A variable rate usually starts lower than the fixed alternative, but the rate risk is yours. If a two-point rise in prime would strain your cash flow, price the fixed option before signing, and run both versions through this calculator to see the payment gap. For scale: on this calculator's default $500,000 loan with the fee financed, a one-point rate increase adds roughly $270 a month on a ten-year term.

Use of proceeds: what the money can fund

The 7(a) is the SBA's general-purpose program, and the approved-use list is long: buying an existing business or a partner's stake, purchasing or renovating owner-occupied commercial property, equipment and machinery, inventory, working capital, and refinancing business debt that sits on unreasonable terms. The term you get tracks the asset. Real estate can amortize up to 25 years, equipment to roughly 10 or its useful life, working capital shorter, which is why this calculator's term presets are grouped by use. Match the term to the asset's life. Financing short-lived inventory over a decade means you are still paying for goods you sold years ago. Refinancing deserves its own mention because it drives a lot of applications. Merchant cash advances and short-term online loans can carry effective rates several times what a 7(a) charges, and rolling them into one longer note frees monthly cash immediately. You will need to show the old debt was on unreasonable terms and that the new loan improves your position substantially; refinancing debt that is already reasonable just to stretch the maturity is not allowed. Mixed-use loans are common, and the term follows the mix. If one note funds $300,000 of equipment and $200,000 of working capital, the lender sets a blended maturity weighted by where the money goes, so the equipment share pulls the term longer and the working capital share pulls it shorter. Leasehold improvements, construction, and the soft costs around a project such as appraisals and closing fees can ride along in the same loan, which is one reason the 7(a) suits messy real-world projects that do not fit a single category. Partner buyouts deserve a note too, since they now make up a real slice of 7(a) volume. Buying out a co-owner counts as a change of ownership, so the valuation and equity rules for acquisitions apply, and the remaining owner's post-purchase balance sheet gets a hard look. If you are on either side of one, order the valuation early; it is the document most likely to hold up the deal. Some purposes are excluded no matter how strong the borrower: passive or speculative real estate, lending activities, gambling, pyramid sales, payments to owners, and businesses based outside the United States. The full eligibility rules are at sba.gov. And if the entire loan is a building or heavy equipment, compare the 504 first, since its fixed-rate debenture is often cheaper for exactly that job.

Guaranty mechanics: who is on the hook for what

The guarantee runs to the lender, not to you. If the loan defaults, the SBA reimburses the lender for the guaranteed share of the loss; nothing about the guarantee reduces what you owe. The SBA has historically backed a larger share of smaller loans, which is why this calculator offers two guarantee settings, and the upfront fee is charged on the guaranteed slice. That produces a quirk worth knowing: a higher guarantee percentage raises your fee, but it also makes a marginal file easier to approve because less of the bank's own money is exposed. Here is the fee at this calculator's defaults. A $500,000 loan at a 75 percent guarantee generates a fee of $11,250. Finance it and the payment on a ten-year note at 7.75 percent rises from about $6,001 to about $6,136, roughly $135 a month. Behind the guarantee sits your own signature. Every owner of 20 percent or more signs an unlimited personal guarantee, and it survives a later sale of your stake unless the lender releases you in writing. Lenders also frequently sell the guaranteed portion of 7(a) loans on a secondary market. Your payments and terms do not change when that happens, but it explains why servicing sometimes transfers to a company you have never heard of.

Before you apply

Build the file first: personal and business returns going back three years, up-to-date financial statements, Form 413 covering your personal finances, projections if the business is young, and for an acquisition the purchase agreement, seller financials, and an independent valuation. The Lender Match tool on sba.gov points you toward participating banks, and a Preferred Lender is worth favoring if speed matters. Funds usually disburse one to two weeks after closing, and the most common delay by far is an incomplete file. The agency-level screen below is mechanical, so clear it yourself before a lender does.
  • For-profit business operating in the United States
  • The owner has real money or time invested in the company
  • Financing is not reasonably available on comparable terms elsewhere
  • The business meets the size standard for its NAICS industry code, measured by receipts or employees
  • No excluded activities: lending, gambling, speculative real estate, or pyramid sales
  • All owners with a 20 percent or larger stake are prepared to sign personal guarantees

Payment Breakdown

Payment breakdown: $511,250.00 principal (69.4%), $225,015.22 interest (30.6%)

Principal

$511,250.00 (69.4%)

Interest

$225,015.22 (30.6%)

How This Calculator Works

The tool first computes the guarantee fee from the tiers it models: 2 percent of the guaranteed portion for loans up to $150,000, 3 percent up to $700,000, and 3.5 percent above, where the guaranteed portion is your loan times the guarantee percentage. The fee is added to principal, then the whole balance amortizes at a single fixed rate. That last assumption is the one to watch. Most 7(a) loans are variable, priced off the prime rate with quarterly resets, so a real payment moves as prime moves. The estimate also omits the SBA's annual servicing fee on the guaranteed balance and any lender closing costs. Fee tiers and guarantee percentages get revised, so check the current figures at sba.gov.

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Disclaimer: This calculator provides estimates for informational purposes only. Results are based on the information you provide and standard financial formulas. Actual loan terms, rates, and payments may vary. This is not financial advice. Please consult with a qualified financial professional and verify all figures with your lender before making borrowing decisions.