Seller Financing When Buying a Business: How a Seller Note Works and What to Negotiate

What is seller financing when buying a business?

Seller financing (also called a seller note, seller carry or vendor take-back) is a loan from the seller to the buyer for part of the purchase price. The buyer pays the rest at closing from its own cash and any bank or SBA loan. The buyer then repays the seller in installments, with interest, under a promissory note.

Example: a buyer agrees to pay $800,000 for a landscaping company. The buyer puts in $100,000, an SBA lender funds $620,000, and the seller carries an $80,000 note at an agreed rate over seven years. The seller receives $720,000 at closing and the rest over time, if the buyer pays.

For the buyer, seller financing lowers the cash needed and signals that the seller believes in the business. For the seller, it can widen the pool of buyers and may support a higher price. The cost to the seller is risk: the seller is now a lender to a small business it no longer controls.

How much of the price is usually seller financed?

There is no official market figure, and published estimates vary widely. Broker and marketplace guides cite ranges from roughly 10% to a third or more of the price, depending on the industry, the buyer's financing and how hard the business is to sell. Treat any single number as a rough rule of thumb, not a standard.

What matters more than the percentage is the structure: the term, whether payments are made monthly or held back, whether there is a large balloon payment at the end, and whether the seller has any security if the buyer stops paying.

What does a seller note cost? A worked example

Take the $80,000 note from the landscaping example, at an illustrative 8% fixed rate (not a market quote) over seven years with monthly payments. The buyer pays about $1,247 a month for 84 months, roughly $104,700 in total, so the note carries about $24,700 of interest on top of the $80,000 of principal.

Change the structure and the risk moves. If the same note is interest only at about $533 a month with the full $80,000 due as a balloon in year seven, the buyer's monthly cash flow is easier but the seller has most of its money at risk until the very end. If the note must sit on full standby for the life of a ten-year SBA loan, the seller may receive nothing for a decade, with interest accruing. Before agreeing a price that depends on a seller note, sellers should ask what the note is really worth to them on those terms, and buyers should check that the business's cash flow can carry the bank loan and the note together.

How do SBA loans affect seller financing?

Many Main Street acquisitions use SBA 7(a) loans, and the SBA's Standard Operating Procedure shapes the seller note. As of 2026, the key rules reported by lenders and practitioners are:

• A change of ownership requires a minimum equity injection of 10% of total project cost.
• A seller note can count toward that injection only if it is on full standby, meaning no payments of principal or interest, for the life of the SBA loan, and only for up to half of the required injection.
• A seller note that is not on full standby can still be part of the deal, but the lender counts its payments when testing whether the business can service its debt.
• Updated change-of-ownership rules (SOP 50 10 8.1) apply to loans that receive an SBA loan number on or after October 1, 2026, so confirm which version governs your loan with the lender.
• SBA lenders generally do not allow earnout payments to the seller in a change-of-ownership loan.

What terms should a seller note include?

A seller note is a promissory note, and the same red flags apply as with any loan. The table compares wording that leaves one side exposed with a more balanced version.

What security should a seller ask for?

An unsecured seller note is one of the most common seller red flags. If the business fails, the bank is paid first from the assets and an unsecured seller may recover little or nothing. Sellers usually ask for some combination of:

• A security interest in the business assets, perfected by filing a UCC-1 financing statement with the state, usually second in line behind the senior lender.
• A pledge of the buyer entity's shares or membership interests, so the seller can take back ownership after a default (subject to the senior lender's rights).
• A personal guarantee from the buyer's owners. Because the buyer typically operates through a new LLC with few assets of its own, a note without a personal guarantee may be worth little if the business struggles.
• Financial reporting, such as quarterly financial statements, so the seller sees trouble before payments stop.
• Limits on what the buyer can do while the note is outstanding: no sale of the business, no large distributions to owners and no new senior debt without consent.

What happens if the buyer defaults on a seller note?

On paper, a default lets the seller accelerate the note (declare the full balance due) and enforce its security. In practice, if there is a senior bank or SBA loan, the seller will have signed a subordination or standby agreement that limits what it can do. That agreement often bars the seller from suing, accelerating or foreclosing until the senior loan is repaid or a standstill period expires.

Sellers should read the subordination agreement as carefully as the note itself, because it can override the note's remedies. Buyers should check that the default triggers are reasonable: a single late payment, a minor covenant breach or a change in the buyer's management should not accelerate the entire balance without notice and a chance to cure.

Ask also how the note interacts with the rest of the deal. If the buyer finds a breach of the seller's representations after closing, can it stop paying the note? A right of setoff gives the buyer leverage; a narrow setoff limited to resolved claims protects the seller from having payments withheld over a disputed claim.

How is a seller note taxed?

Seller financing can let the seller spread the tax on the gain over the years payments are received, under the installment method in Internal Revenue Code section 453, reported on Form 6252. Not everything qualifies: depreciation recapture on equipment is generally taxed in the year of sale even if the cash arrives later (section 453(i)), and inventory sales are not eligible.

The interest rate matters for tax too. If the note charges less than the applicable federal rate published monthly by the IRS, the tax rules under sections 483 and 1274 can recharacterize part of the principal as interest. Interest is ordinary income to the seller and generally deductible to the buyer as a business expense. Have an accountant model the note before the rate is agreed.

Seller financing negotiation checklist

The Business Purchase analyzer calculates the seller note's monthly payment and total interest from the draft, and flags whether it is secured, subordinated or subject to setoff. Use the results alongside this checklist, then confirm the final terms with your attorney and lender.

• Is the note amount, rate, term and payment schedule stated in the purchase agreement and the note itself, and do they match?
• Does the rate meet the applicable federal rate?
• If SBA financing is involved, is the note on full or partial standby, and has the lender approved it?
• Is the note secured, and who files the UCC-1?
• Is there a personal guarantee, and is it limited?
• What does the subordination agreement allow the seller to do after a default?
• Is there notice and a cure period before acceleration?
• Can the buyer prepay without penalty?
• Is setoff against the note limited to resolved indemnity claims?
• What happens to the note if the buyer resells the business?