Selling Your Business — Cash, Earnout, or Seller Note Structure
When you sell a small business, the headline price almost never matches what you actually take home. A $2.4M deal with 100% cash at close, a $2.8M deal with 60% cash and 40% earnout, and a $2.6M deal with 70% cash and a 30% seller note can all produce very different five-year outcomes for the seller — and the worst of those three is sometimes the highest headline number.
Deal structure is at least as important as price, and most first-time sellers don't realize that until the LOI is already in front of them. Here's how the three main structures work, when each one fits, and where your leverage is in each negotiation.
Why deal structure matters as much as price
Buyers and sellers are usually negotiating two things at once even when it doesn't feel like it: the headline price (what gets reported) and the cash-equivalent value (what you actually get, risk-adjusted, after tax). A higher headline price with deferred or contingent components might be worth less than a lower headline price paid entirely at close.
The three primary structures you'll see in small business M&A:
- All-cash at close. Buyer pays the full purchase price at closing. Rare in deals over ~$1M unless there's a strategic acquirer with a checkbook or strong third-party financing.
- Cash + earnout. Buyer pays a portion at close, and additional contingent payments over 1–3 years if the business hits specific revenue, EBITDA, or customer-retention targets.
- Cash + seller note. Buyer pays a portion at close, and the seller carries a promissory note (typically 10–30% of purchase price) at a defined interest rate, repaid over 3–7 years regardless of business performance.
Many real deals are hybrid: cash + a small seller note + a small earnout. The terms of each component matter more than the labels.
Structure 1: All-cash at close (rare, but the gold standard)
All-cash deals exist mostly at two ends of the size spectrum: very small deals where a buyer just writes a personal check, and larger deals where strategic acquirers or PE buyers use third-party financing (SBA 7(a), commercial term debt, or their own capital). For deals in the $500K–$5M range with a financial buyer (not strategic), all-cash is rare.
You should push for all-cash when (a) your business has clean, stable, reproducible numbers that any third-party lender would underwrite easily, (b) there are multiple buyers competing for the deal, and (c) your numbers don't have any "one-time" or "we expect growth" assumptions baked into the asking price. If the buyer believes the trailing-twelve-month numbers are real, sustainable, and transferable, all-cash is feasible. If the buyer needs convincing on any of those, earnout shows up.
Structure 2: Cash + earnout (when buyers don't fully trust your numbers)
Earnouts are how a buyer says "I believe your numbers might be real, but I'm not paying full price for them until I see them under my ownership." The buyer pays a chunk at close (typically 50–80% of headline price) and the rest is contingent on the business hitting targets over the next 1–3 years.
Typical earnout structure
The thing first-time sellers often don't appreciate: earnouts are almost always paid at less than 100% of the maximum. Industry-typical earnout realization is in the 60–85% range, because targets are set aggressively, business performance dips through transition, and buyers control the post-close operating decisions that drive the metrics. If you're being offered $2.8M with $1.1M as earnout, the realistic expected value of that deal is closer to $2.5M, not $2.8M.
Earnouts make sense when (a) your business has a real growth story that you genuinely believe will continue, (b) you're willing to stay involved post-close to influence the metrics, and (c) the targets are tied to metrics you can actually impact (not buyer-side operating decisions).
Structure 3: Cash + seller note (you become the bank)
A seller note is debt: you carry a promissory note from the buyer for a portion of the purchase price, repaid over a fixed schedule at a defined interest rate. Unlike an earnout, the seller note isn't contingent on performance — the buyer owes you the money on a schedule, period.
Seller notes are common in SBA 7(a) deals because SBA underwriting often requires the seller to carry 10–25% as a "second" behind the SBA loan, with the seller note on standby for the first 24 months. They also show up in deals where the buyer can't get full third-party financing and needs the seller to bridge the gap.
The trade-off: a seller note gives you a contractual right to be paid, but it puts you behind any senior lender in priority and exposes you to the buyer's ability to run the business well enough to service the debt. If the business fails 18 months in, the SBA gets paid, the senior lender gets paid, and the seller note holder gets pennies. The interest rate on a seller note (typically 6–9%) should compensate for that risk, but a lot of seller notes are written at low interest rates because the seller didn't push hard enough on this term during the negotiation.
Negotiating leverage: which structure favors you
Your leverage depends on the buyer pool and the cleanliness of your numbers:
- Multiple strategic buyers competing: push hard for all-cash. Strategic buyers can pay it; financial buyers usually can't.
- One financial buyer, clean numbers, easy SBA approval: you can usually get to 80–90% cash + 10–20% seller note, with the note at a real interest rate.
- One financial buyer, mixed numbers, recent growth that may not sustain: earnout will show up. Push the cash portion as high as you can and the earnout targets to metrics you control.
- Niche business, narrow buyer pool, owner-dependent operations: expect heavy earnout and seller note. Your leverage is on terms (interest rate on note, structure of earnout targets), not on cash percentage.
The valuation rule-of-thumb gap
Most small business sellers fixate on the multiple — "businesses like mine sell for 3x EBITDA" — without realizing the multiple applies to a specific structure. A "3x EBITDA" headline number in a deal with 50% earnout is not the same as a "3x EBITDA" deal with 90% cash at close. When buyers quote multiples, ask what structure the multiple assumes. When a broker tells you your business is worth a certain headline number, ask what cash component is realistic at that price.
Run your business through the business valuation calculator to get a sense of the multiple range for your size and industry, and use the business cash-out structure modeler to see what different cash/earnout/note splits actually look like in expected-value terms over a 5-year window.
Tax and risk trade-offs in one paragraph
Cash at close is taxed at long-term capital gains (or sometimes ordinary income depending on entity and structure). Earnouts are often taxed when received, sometimes as ordinary income, which depending on your bracket can be materially less efficient than cash at close. Seller notes spread the gain over the repayment period (installment sale treatment under IRC 453 for most asset sales) which can be a tax advantage but also a risk concentration in the buyer. None of this should be decided without a CPA who specializes in small business M&A — the tax structure can move 10–20% of after-tax value.
Run the structure before you sign the LOI
The single most useful thing you can do before signing a letter of intent: model the expected after-tax value of the deal under three structure scenarios (high-cash, balanced, heavy-earnout) and see what the spread is. If the LOI you're offered is in the "heavy-earnout" column and the expected realized value is materially lower than the high-cash column, that's a negotiation lever — not a reason to walk, necessarily, but a number to bring back to the table.
Send me the LOI (or a summary). I'll model the realized value vs the headline.