Seller Financing a Business: How Seller Notes Work for Buyers

Updated October 22, 2026 · Deal Readout research

Seller financing means the seller lends you part of the purchase price. You pay the seller over time through a seller note, a loan agreement with an amount, interest rate, term, and payment schedule. In small-business deals, a seller note often sits next to a bank or SBA loan and covers part of the gap between your cash and the price.

Why seller financing matters to a buyer

Seller note terms to negotiate

TermWhat to decide
AmountThe part of the price the seller carries.
Interest rateFixed rate. Must be at or above the IRS applicable federal rate to avoid imputed interest.
Term and amortizationHow many years, and whether there is a balloon payment at the end.
StandbyWhether payments are paused (required in some SBA structures).
SecurityUsually a lien on business assets, behind the bank.
Right of offsetYour right to reduce payments if the seller breaches the agreement.

Seller financing with an SBA loan

Seller notes and SBA 7(a) loans are often used together. Under current SBA rules (SOP 50 10 8), the buyer must inject at least 10% of the project cost. A seller note can count toward up to half of that injection, but only if it is on full standby: no principal or interest payments for the life of the SBA loan. A seller note that is not on standby can still be part of the deal, but it does not count as your equity, and the lender includes its payments when testing debt coverage.

Worked example: how a seller note changes coverage

A business with $205,900 of verified SDE sells for $650,000. After a $55,000 manager salary, $150,900 is available for debt. Loans are 10 years at an assumed 10.25% (SBA) and 5 years at 6% (seller note).

StructureAnnual debt serviceDSCR
10% cash + 90% SBA ($585,000)$93,7441.61x
10% cash + 10% seller note ($65,000) + 80% SBA ($520,000), years 1–5$98,4081.53x
Same structure, years 6–10 (note paid off)$83,3281.81x

The seller note costs $1,257 a month. Because it is shorter than the bank loan, it lowers coverage in the first five years (1.53x vs. 1.61x) and raises it after. The structure with a note puts $65,000 of the seller’s money at risk alongside yours.

Seller note vs. earnout

A seller note is a fixed debt: you owe it regardless of results. An earnout is a payment that depends on future performance, such as revenue in the first two years. Earnouts help when buyer and seller disagree on what the business will earn. They also cause disputes about how results are measured, so define the metric and the accounting precisely.

Risks for the buyer

FAQ

How does seller financing work for a business?

You pay part of the price at closing and sign a note for the rest. You then make payments to the seller under the note’s terms, usually monthly.

Can I buy a business with seller financing and no money down?

Rarely, and not with an SBA loan, which requires a cash injection. See SBA loan to buy a business.