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What a seller note actually does

Nearly every SBA acquisition we advise on includes some seller financing.

It is the most flexible piece of the capital stack and the most misunderstood.

A seller note does four specific jobs:

• Bridges the gap between what the bank will carry and the purchase price
• Signals that the seller believes in the business after the keys change hands
• Shifts debt off the bank's fully amortizing stack to help coverage
• On standby it reduces the cash you bring to close.

Notice what is not on that list: price. The real lever is the split between bank debt and seller paper, which the sources and uses below makes visible.

Standby: does your note actually count?

The word doing the heavy lifting is standby, and there is a world of difference between the two flavors.

• Full standby, life of the loan. No payments of principal or interest until the SBA loan is repaid. This is the version that can count toward your 10% equity injection, capped at half of the required injection. The rest has to be your cash.
• Short standby (e.g., 24 months). Payments pause early, then begin. It helps cash flow in the transition years, but it does not count toward the injection, and the bank counts the note in its coverage test once payments start.

The old rule, where a 24-month no-payment note could count toward the down payment, went away when the guidelines changed in June 2025. Today only a note on full standby for the life of the loan counts, and only up to half the injection. Standby lowers the cash you need at close. It does not erase a thin coverage profile; lenders test debt service after the standby burns off.

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​ The structure decision: two levers

Take one $2.20MM project and build the stack up in three steps. The same headline price finances three different ways, and the two charts below show why.

• All bank debt. The buyer funds the full $220K injection in cash and the bank lends $1.98MM. Cleanest to underwrite, the most cash out of pocket, and nothing softening the coverage test.
• Add a full-standby note for half the injection. Buyer cash drops to $110K and a full-standby note covers the other $110K. The bank still lends $1.98MM, so the cash at close is cut in half while coverage is unchanged.
• Add an amortizing seller note for 15% of the price. A separate $330K amortizing note, not counted toward the injection, carries part of the price and shifts that debt off the bank. The senior loan falls to $1.65MM, and structured with interest-only early years it lifts coverage over the 1.25x floor.

Here is the same structure as a sources and uses table. Every lender models this slightly differently, so treat it as a teaching frame, not a quote.

Why amortization is the hidden lever

If you take one structuring idea from this issue, make it this one. When you are buying a business without real estate, the SBA 7(a) loan is always amortized over 10 years, which sets the pace for the senior debt.

The trap is failing to match it on the seller note. If the amortization you negotiate on the seller note is shorter than 10 years, say 5 years, you are repaying that principal at roughly twice the speed of the SBA loan.

That creates two problems. First, optics: an SBA lender does not love seeing the seller paid back twice as fast as the bank, because it looks like the seller is quietly made whole ahead of the senior lender. Second, and more concrete, it hurts your debt service coverage. A faster principal paydown means a bigger annual debt service number, which pushes DSCR down at exactly the moment you need it to clear the 1.25x floor.

The fix is straightforward:

Stretch the seller note's amortization to match the 10-year SBA loan, or as close as you can get, and use a balloon to shorten the actual payoff if the seller wants their money sooner. Matching the amortization keeps annual debt service low and the coverage math healthy; the balloon handles the seller's timeline without wrecking the early years.

A real structure, start to finish

Theory is cleaner than reality, so here is an anonymized composite from a deal we advised on. A specialty manufacturing business, roughly $3.2MM enterprise value on about $640K of EBITDA. At five times earnings it was a full price, and the seller would not move off it.

The bank, underwriting to a 1.25x coverage floor after a market-rate owner salary, would only carry about $1.95MM of senior debt against that cash flow. Left as a simple cash-plus-bank-loan deal, the numbers did not close: there was roughly a $1.3MM gap between the price the seller wanted and the debt the business could service. Walking was on the table. Instead, the gap got engineered into three layers of seller paper, each doing a different job.

Here is how the money came together. Treat the figures as illustrative and rounded; the point is the shape of the stack, not the exact dollars.

How the Seller Paper was Layered

• The amortizing seller carry, about $0.8MM, the backbone. This was the bulk of the bridge, roughly a quarter of the price. It signaled the seller's confidence in the business after the keys changed hands and kept the bank loan down to a coverage-friendly size. We ran it interest-only for the first two years, then amortizing with a balloon at year five, so the early years (when the buyer is still learning the business) carried almost no principal. The rate was set at the bank rate, since the note is subordinate, not senior.
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• The full-standby slice, about $0.17MM, for injection credit. A piece of the seller paper was placed on full standby for the life of the SBA loan, taking no principal or interest until the bank is repaid. That let it count toward the buyer's 10% equity injection (half of the $340K required), which cut the cash the buyer had to write at close from $340K down to $170K. The seller signed the standby agreement at the LOI stage, not at closing.
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• The forgivable performance note, about $0.3MM, the alignment piece. This slice was payable only if the business hit an EBITDA threshold for two consecutive years. If performance slipped, it simply went away, effectively lowering the price after the fact and putting the seller's money where their projections were. We tied the trigger to verifiable historical profitability rather than a forward forecast, because a forgiveness clause hung on a projection is exactly the kind of thing a credit officer flags as speculative.
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• The SBA 7(a) senior loan, about $1.95MM, sized to coverage. The bank loan was sized so that even the weaker historical years cleared roughly 1.25x after a market salary. The seller paper, not the bank, absorbed the rest of the price.

The amortization choices were not cosmetic; they were the difference between clearing and missing the floor. With roughly $500K of cash flow available for debt service after a market-rate owner salary, the senior loan alone carried about $320K of annual debt service, a healthy 1.5x on its own.

Stack a fully amortizing $0.8MM carry on top of that and you add close to $120K a year, dropping blended coverage toward 1.1x, under the floor and dead on arrival.

By running the carry interest-only for the first two years, roughly $64K a year, and pushing the principal to a year-five balloon, early-year debt service stayed near $385K and blended coverage held around 1.3x. The buyer got breathing room in the hardest years; the seller got a defined payoff date.

The paperwork mattered as much as the math. Because every one of these notes sat behind the bank, each required an SBA Form 155 standby and subordination agreement, negotiated into the LOI rather than sprung at the closing table. The forgivable note drew the most underwriter scrutiny: the credit team wanted the performance trigger pinned to numbers it could verify, and it sized the loan as though that note would always be paid, so a missed threshold could only help coverage, never hurt it. That conservatism is what got it comfortable approving the deal.

What lenders actually pushed back on

These are real, anonymized examples from deals we worked in 2024 and 2025. No client names, no bank names, just the recurring places where lenders sent a seller note structure back for changes.

FROM THE FIELD: 2024

• Annual payments, when the bank wanted monthly. A buyer's LOI proposed a seller note paid in one lump sum each year. The lender's underwriters wanted level monthly payments instead, because the lumpy schedule muddied the coverage math. The note was restructured to monthly amortization and the deal moved ahead.
• A forgiveness trigger tied to a forward projection. A buyer wanted the note forgiven if future EBITDA fell below a target. The lender read a forward-looking forgiveness clause as speculative, so we reworked it to reference verifiable historical profitability the bank could actually underwrite.

FROM THE FIELD: 2025

• A standby that hid the real coverage. An $800K seller note sat on a two-year standby at 10%. Once the standby burned off, the payments pushed coverage below the lender's threshold. The fix was a longer amortization and reshaped payments so DSCR still cleared after the standby ended.
• A note built for one bank's credit box. A sub-$1MM file came back declined on coverage. Because the note had been cut to fit that one lender's box, re-shopping it to the next lender meant re-structuring the note for a different appetite. Seller paper built for one credit box is not automatically portable.
• Too tight, so shift onto seller paper. A lender's credit team called the cash flow too tight as proposed. Rather than argue price, the structure added seller carry and modified the payment terms, exactly the move when coverage is thin.

The common thread: lenders were not rejecting seller notes. They were rejecting seller notes that ignored the coverage math or the SBA rules. Design to those rules first and the pushback mostly disappears.

Where seller notes go wrong

• Assuming a 24-month standby counts as equity. Only full standby for the life of the loan counts toward the injection, and only up to half of it.
• Oversizing the note and breaking coverage. The bank tests total debt service including the seller note. A big note at a market rate, especially on a short amortization, can sink DSCR.
• Leaving standby talks for the eleventh hour. Sellers who learn at closing that their note is on full standby tend to react badly. Negotiate it with the LOI, not at the closing table.
• Forgetting about future refinancing. To refinance a seller note later, you generally need two years of current payments on it. A note that sat on full standby can leave you stuck. A practical trick: build in a nominal payment, even $10 a month, so the note stays eligible to refinance down the road.

Negotiating: terms that matter

• Rate: typically near or below the bank rate. The note is subordinate, not senior.
• Term and amortization: match the SBA loan's 10-year amortization where you can; longer is friendlier to coverage, with a balloon to shorten the real payoff.
• Standby period: full life-of-loan if you need injection credit; otherwise size it to the transition.
• Subordination: the bank will require it, documented on SBA Form 155. Build it into the LOI.
• Security: usually unsecured or a junior lien. The seller keeps skin in the game.

BEFORE YOU SIGN THE LOI: A 7-POINT CHECK
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• Confirm the seller will sign SBA Form 155.
• Decide which portion, if any, is full standby for injection credit (max 50% of the injection).
• Match the note's amortization to the 10-year SBA schedule; use a balloon for the seller's timeline.
• Stress-test DSCR with the note's payments included, against the 1.25x floor.
• Set the rate at or below the bank rate, since the note is subordinate.
• Build in a nominal payment so the note stays refinance-eligible.
• Get subordination language into the LOI, not the closing table.

Quick questions & answers

Q. Does a seller note always have to be on standby?

A. No. It only has to be on full standby if you want it to count toward your equity injection. Otherwise it can amortize and take payments, but it still sits behind the SBA loan via Form 155.

Q. How much of my down payment can a seller note cover?

A. Up to half of the required injection, and only when it is on full standby for the life of the loan. The rest of the injection has to be your cash.

Q. Will a seller note hurt my loan approval?

A. Often the opposite. Many lenders want to see seller paper because it signals the seller stands behind the business, and some will not do an acquisition without it.

Thanks for reading!

If you're working on an acquisition, or are in the pre-LOI phases, you can book a short, informal call here to meet our team and learn how we can help you.

For pre-LOI buyers ready to explore opportunities: Schedule a meet & greet call​

Already have a deal under LOI and need financing help: Schedule an LOI consultation​

Until next time,

Matthias Smith

President, Pioneer Capital Advisory

​www.pioneercapitaladvisory.com​
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Disclaimer: The information in this newsletter is for informational purposes only and should not be considered legal or financial advice. Business buyers are encouraged to consult with their legal counsel and accountant to ensure the proper structuring of their transactions and to fully understand the tax implications of seller financing.

Thanks for reading. Feel free to reply directly to this email with any questions or thoughts.