Seller Note Valuation Gap: How to Close a Practice Deal

A seller note is money the seller lends the buyer as part of the sale price, repaid over time instead of collected in cash at closing. In practice acquisitions, I bring one up almost every time a bank’s appraisal or cash-flow underwriting comes in below what the seller wants for the practice. That’s the seller note valuation gap in a nutshell: the difference between what a lender will finance based on collections and what the seller believes the practice is worth, bridged by the seller carrying part of the price themselves. Structured correctly, with standby terms the primary lender can live with, it’s often the difference between a deal that closes and one that quietly falls apart in diligence.

What a Seller Note Actually Does in a Practice Deal

Think of the capital stack on a typical practice purchase as three layers: the buyer’s own equity injection, a bank or credit union loan (sometimes SBA-backed, more on that below), and — when there’s a gap — a seller note filling the space between them. The seller isn’t giving anything away; they’re financing part of their own sale price and getting paid back over an agreed term, usually with interest. What makes it valuable isn’t charity on the seller’s part. It’s that a seller who’s willing to stand behind their own asking price with real dollars at risk tells a lender something an appraisal can’t: the seller believes the transition will hold up. That belief, expressed as real capital at risk, is often what closes a seller note valuation gap that no appraisal alone can bridge.

I’ve written in more detail about how the mechanics of seller note structure and standby terms work loan by loan, but the short version for this discussion is that the note sits behind the senior lender in repayment priority, and that subordination is exactly what makes it usable.

Standby Terms: Why the Senior Lender Insists on Them

“Standby” means the seller agrees not to collect principal — and sometimes not even interest — on their note for a set period, often the full term of the senior loan or some portion of the early years. Lenders ask for this because a new owner’s first eighteen to thirty-six months are the highest-risk stretch of the whole deal. Referral patterns are shifting, some patients are testing the waters with the new owner, and collections can dip before they stabilize. Adding a second debt payment on top of the primary loan during that window raises the odds of a cash crunch that has nothing to do with whether the practice is fundamentally healthy.

In practice, standby terms usually include:

• A deferral period where no payments are due on the seller note at all
• A structure where interest accrues without being paid on an ongoing basis, then resumes on a set schedule
• A full subordination agreement spelling out that the senior lender gets paid first in any default or sale scenario
• Limits on the seller’s ability to accelerate or call the note early, even if the buyer misses a payment to them personally

None of this is boilerplate — the specific terms vary by lender, by deal size, and by how thin the underwriting cash flow already is. A buyer and seller who negotiate a note before talking to a lender sometimes have to go back and rework it once underwriting sees the full picture.

Where the Seller Note Valuation Gap Actually Comes From

The seller note valuation gap rarely shows up because a lender thinks the seller is lying about their numbers. It shows up because lenders and sellers are measuring different things. A seller often prices a practice off gross collections, goodwill built over twenty years, or what a broker’s rule-of-thumb multiple suggests comparable practices have sold for. A lender prices the deal off what the historical cash flow can service in debt payments after normalizing for add-backs, working capital needs, and a reasonable cushion for the transition period. Those two numbers frequently land in different places — sometimes 10%, sometimes 25% apart.

That gap is exactly what a seller note is built to absorb. Instead of the buyer trying to find more cash or the seller dropping the price outright, the seller finances the portion the bank won’t, and gets repaid over time as the practice proves it can carry the load. I’ve seen this close deals on dental and veterinary practices where the collections were strong but concentrated with one or two referring providers, and the appraised value based purely on normalized cash flow understated what the practice was realistically worth with the seller staying involved through transition.

Collections, Payer Mix, and Transition Risk: Why Underwriting Still Comes First

A seller note doesn’t replace underwriting — it works alongside it. Lenders still want to see trailing collections, payer mix concentration, and how much of the revenue depends on the outgoing owner’s personal relationships versus the practice’s referral base and staff. A heavily cash-pay chiropractic practice gets read differently than an insurance-heavy medical practice, and I cover that in more depth in our piece on how lenders handle practice cash flow underwriting. The seller note can soften the math on a marginal file, but it can’t manufacture cash flow that isn’t there, and a lender weighs the note alongside credit history, add-backs, and the buyer’s own equity injection rather than treating it as a stand-alone fix.

Transition length matters here too. A seller staying on for six to twelve months to introduce the buyer to referral sources and long-time patients meaningfully de-risks the deal in a lender’s eyes, and it’s common for the note terms to loosely track that transition period — standby through the handoff, amortization starting once the buyer has run the practice solo for a stretch.

Practice Real Estate and the Seller Note

When the sale includes the building — not just the practice — the seller note sometimes gets split conceptually even if it’s one document: part tied to goodwill and equipment, part tied to real estate. Real estate-backed seller notes tend to get friendlier standby terms because the lender has hard collateral behind that piece, which is worth understanding alongside our breakdown of what actually secures a practice loan. If the real estate is leased rather than purchased, that changes the equity injection conversation and the size of the gap the seller note needs to cover.

One thing I’ll say plainly: if a buyer doesn’t have much cash to put down and is leaning almost entirely on a seller note to make up for it, that’s a structure worth stress-testing carefully rather than assuming it will clear underwriting. Depending on the size and shape of the deal, an SBA-backed loan may be a better fit for financing the acquisition itself — that’s a separate conversation with its own rules, covered on our SBA 504 & 7(a) loan page.

Sellers carrying notes should also understand how the IRS treats installment sale income before they agree to terms, since spreading payments over years has real tax consequences — the IRS’s guide to installment sales is a useful starting point, though this isn’t tax advice and a CPA should weigh in on the seller’s specific return.

FAQ

Does a seller note always mean the practice is overpriced?
Not automatically. A seller note valuation gap can just as easily reflect two reasonable people measuring value differently — normalized cash flow versus long-term goodwill — rather than an inflated price. Lenders still scrutinize the underlying numbers regardless of how the deal is structured.

Can the seller note count toward the buyer’s equity injection?
Sometimes, depending on the lender and how the note is subordinated, though this varies by program and file. It’s worth reviewing alongside our explainer on what counts toward a practice acquisition equity injection before assuming it will.

Who decides the standby period length?
The senior lender typically drives it, since they’re the one taking on the immediate repayment risk during the transition. Buyer, seller, and lender usually negotiate the specifics together once the financing terms start taking shape.

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This article is general education, not financial advice or a commitment to lend. Loan programs, terms, and availability are subject to credit approval and may change. Loanatik LLC is an Equal Housing Lender. See our licensing & disclosures.