How Seller Notes Work (And Why Lenders Love Them)

A seller note is simple in concept: instead of receiving the full purchase price at closing, the seller agrees to take a portion of it over time, paid by the buyer after the deal closes. The seller becomes a creditor. The buyer owes them money on a defined schedule.

In practice, the seller note is one of the most powerful structural tools in a business acquisition, and it does several things at once that neither the buyer nor the lender can replicate any other way.

What a Seller Note Actually Is

When a business sells for $1.5M and the seller agrees to carry a $150,000 note, the buyer brings $75,000 to closing (5% of the purchase price), the SBA 7(a) loan covers $1.275M (85%), and the seller's $150,000 note makes up the remaining 10%. The seller receives $1.35M at closing and collects the remaining $150,000 plus interest over the note term.

The note is documented with a promissory note specifying the principal, interest rate, repayment term, and subordination terms. That subordination piece is critical, and I will get to it in a moment.

On a standby note, the seller receives nothing during the standby period. No interest, no principal. They wait. This is the structure the SBA requires when the seller note is being used to reduce the buyer's equity injection below the standard 10%. (This math is not inclusive of closing costs or working capital, but the % is all the same)

Why Lenders Want to See Seller Notes

This is the part that surprises most buyers. Lenders do not just tolerate seller notes. They actively prefer deals that include them.

The reason is alignment. A seller who carries a note has a direct financial interest in what happens to the business after closing. If the business fails, the seller does not get paid. That creates a powerful incentive for honest disclosure during due diligence, real cooperation during the transition period, and genuine support when the buyer runs into the inevitable early-ownership challenges.

Compare that to a seller who receives every dollar at closing. Their involvement ends the moment the wire hits. If a key customer leaves in month three or a critical piece of equipment fails in month six, the seller has no financial reason to help. The note changes that equation entirely.

Lenders also read a seller note as a signal. A seller willing to carry paper is a seller who believes the business will continue to perform under new ownership. A seller who insists on an all-cash closing but can't explain why is a seller the lender looks at more carefully.

The Standby Requirement and What It Means

When a seller note is used to meet part of the SBA's equity injection requirement, the SBA mandates that the note sit on full standby for the life of the SBA loan. Full standby means no payments of any kind, principal or interest, until the SBA loan is paid off.

That is a significant ask. A seller carrying a $150,000 note on full standby for 10 years is effectively waiting a decade to see that money. Some sellers won't agree to it. Many will, particularly sellers motivated by retirement, health, or relocation rather than an immediate need for cash.

When a seller note is not being used to satisfy the equity injection (meaning the buyer is bringing the full 10% in cash), the standby requirement does not automatically apply. In those cases, the note can have an active repayment schedule, though the SBA lender will still require it to be subordinated to the SBA loan. Subordination means the SBA lender gets paid first in any liquidation scenario. The seller, as a subordinated creditor, is behind the bank in line.

How Seller Notes Affect the Math

Take a borrower buying a $2M landscaping company. Without a seller note, the buyer needs $200,000 in cash (10% equity injection) and the SBA loan covers $1.8M. With a seller note covering half the injection, the buyer brings $100,000 and the seller carries $100,000 on full standby. The SBA loan drops to $1.9M.

That $100,000 reduction in the buyer's cash requirement is meaningful. It is the difference between a buyer who can close this deal and one who needs another 18 months to save up. It is also the reason I tell every buyer to have the seller note conversation during the LOI phase, not after weeks of due diligence.

The note also reduces the SBA loan balance slightly, which improves debt service coverage. A lower monthly payment means more room between the business's earnings and its obligations. That coverage number matters to every lender running the underwriting analysis.

Structuring the Note to Get the Deal Done

The interest rate on a seller note is negotiable. Rates typically run in the 6 to 8% range. A higher rate compensates the seller for the risk and the wait. A lower rate reduces the buyer's future payment burden but may require other concessions in the purchase price.

Note term and repayment structure also matter. A seller note with a 5-year term and a balloon payment at maturity is a different risk profile than a 10-year fully amortizing note. Buyers generally prefer longer terms and lower payments. Sellers generally prefer shorter terms and faster repayment. The negotiation is real.

One structure worth knowing: a seller note with partial standby, where payments begin after a defined period (often 24 months) rather than at the end of the SBA loan term. Some lenders will accept this when the buyer's equity injection fully meets the 10% requirement and the seller note is not being used to satisfy any portion of that injection. It gives the seller more visibility on when they start getting paid while still subordinating their position to the bank.

What to Watch Out For

A seller who agrees to carry a note but pushes back hard on the standby requirement is worth examining. If the seller needs the cash immediately, that tells you something about their financial situation and possibly about the business's future cash flow.

Make sure the note terms are reflected accurately in the purchase agreement and that the SBA lender sees the full note documentation before closing. A seller note that surfaces for the first time at the closing table is a problem. Lenders need to review and approve the note structure as part of underwriting, not as a last-minute add.

Finally, do not treat the seller note as a substitute for real due diligence. The note creates alignment, but it does not protect you from a business with structural problems. Verify the cash flow, understand the customer relationships, and make sure the business can support the debt before you lean on the note structure to make the numbers work.

If you are working through this on your own deal, pre-qualify with us. It is free and takes two minutes.