Earnout vs Seller Note: Which Deferred Payment Is Safer for the Seller?

What is the difference between an earnout and a seller note?

A seller note (also called seller financing or a seller carry) is a promissory note from the buyer to the seller for part of the price. Say a business sells for $900,000 and the seller carries $150,000 at an agreed interest rate over five years. The buyer owes the full $150,000 plus interest regardless of how the business performs. If it does not pay, it is in default.

An earnout is contingent purchase price. Using the same price, the parties might agree $750,000 at closing plus up to $150,000 if gross revenue exceeds an agreed figure in each of the next two years. If revenue falls short, the seller may get part of the earnout or nothing. Nothing is owed unless the target is hit.

Both defer payment, both depend on the buyer remaining solvent, and both can be combined in one deal. But a note shifts business risk to the buyer, while an earnout shifts it back to the seller.

Earnout vs seller note: which is safer for the seller?

For most sellers, the seller note is safer. The amount is fixed, the obligation is unconditional and the note can be secured by the business assets and a personal guarantee. The seller's main risk is that the buyer cannot pay, which the seller can reduce with security, financial reporting and covenants.

An earnout carries the same credit risk plus performance risk and control risk. After closing the buyer runs the business. It can change prices, cut marketing, move customers to another entity, raise overhead or shift costs in ways that lower the earnout metric, often for sound business reasons. Courts generally enforce earnout clauses as written and are reluctant to read in protections the seller did not negotiate. Earnout disputes are among the most common post-closing fights in private deals.

The trade-off is price. A buyer will usually accept a higher headline price with an earnout than with a note, because the buyer only pays the extra if the business earns it. A seller who is confident in the business, and who stays involved, may rationally prefer a larger earnout to a smaller guaranteed note.

Why would a seller ever accept an earnout?

Earnouts solve a valuation gap. If the seller says the business will grow 20% next year and the buyer only believes this year's numbers, an earnout lets both be right: the buyer pays for growth only if it appears. Earnouts are also common where revenue depends on a few large customers who might leave after a sale, or where the business is recovering from a bad year.

A seller can make an earnout safer by keeping it simple. Gross revenue, or revenue from named customers, is harder for the buyer to reduce than profit, because the buyer controls costs. Short periods (one or two years), annual payments rather than one payment at the end, and a fixed formula with a worked example in the agreement all reduce the room for argument.

Why would a buyer prefer an earnout over a seller note?

For the buyer the logic runs the other way. A seller note is debt the business must service even in a bad year, and it sits on top of any bank loan. An earnout only costs money when the business is doing well enough to pay it. That makes an earnout attractive when the buyer doubts the seller's projections or when cash flow is tight.

Buyers should not assume an earnout is free, though. A poorly drafted earnout invites litigation, and a seller who stays on as an employee while the earnout runs may resist changes the buyer wants to make. The buyer usually wants the agreement to confirm its right to run the business in its own discretion, while the seller wants operating covenants. That tension has to be settled in writing.

How do SBA lenders treat earnouts and seller notes?

Many small acquisitions use SBA 7(a) loans, and the SBA's Standard Operating Procedure treats the two very differently. As of 2026, practitioners and lenders report that payments to the seller under an earnout are not permitted in an SBA change-of-ownership loan, because they leave the seller with a continuing stake in the business. A deal that needs SBA financing will usually have to replace an earnout with a seller note or a lower price.

Seller notes are allowed. Under SOP 50 10 8, carried forward into SOP 50 10 8.1 for loans numbered on or after October 1, 2026, a change of ownership needs an equity injection of at least 10% of total project cost, and a seller note can count for up to half of that injection only if it is on full standby, meaning no principal or interest payments for the life of the SBA loan. A note that is not on full standby can still be part of the deal, but the lender includes its payments when testing whether the business can carry its debt. Confirm the current rules with your lender, because SOP versions change.

How are earnouts and seller notes taxed?

Both can let the seller spread tax on the gain over the years payments are received, under the installment method in 26 U.S.C. section 453. A seller note is a standard installment sale: the gain is recognized proportionally as principal is collected, and interest is ordinary income.

An earnout is usually a contingent payment sale under Treasury Regulation section 15a.453-1(c). If the agreement states a maximum earnout, the regulation treats that maximum as the selling price for spreading basis. If there is no maximum but a fixed period, basis is recovered in equal annual amounts over that period. Part of each deferred payment may also be treated as interest if the agreement does not state one. Depreciation recapture on equipment is generally taxed in the year of sale either way. These rules can shift real money between years, so model both structures with an accountant before agreeing one.

A worked example: the same price, two structures

Take a business with a $900,000 headline price and $750,000 paid in cash at closing. In version A, the remaining $150,000 is a seller note at an illustrative 8% over five years with monthly payments (not a market quote). The buyer pays about $3,041 a month, roughly $182,500 in total, so the seller collects about $32,500 of interest on top of the $150,000, provided the buyer keeps paying.

In version B, the remaining $150,000 is an earnout: $75,000 for each of the next two years in which gross revenue exceeds $1.2 million. If year one revenue is $1.25 million and year two is $1.18 million, the seller receives $75,000, not $150,000, and no interest. A small change in pricing, a lost customer or a shift of sales to the buyer's other company can decide that second payment.

On these illustrative figures, the note's expected value to the seller is the full $182,500 less the risk of default. The earnout's is anywhere from zero to $150,000. That gap is why sellers usually ask for a higher headline price, or a lower revenue target, before accepting an earnout instead of a note.

What should a seller negotiate for each option?

For a seller note: security in the business assets with a UCC-1 filing, a personal guarantee from the buyer's owners, an interest rate at or above the applicable federal rate, monthly amortizing payments rather than a large balloon, notice and cure before default, a limit on setoff to resolved claims, and acceleration if the buyer sells the business. If there is a senior lender, read the subordination agreement, because it can limit every remedy in the note.

For an earnout: a simple metric, defined accounting rules with an example calculation, a duty to run the business in the ordinary course, a list of things the buyer may not do (such as moving customers to an affiliate), access to the books, a deadline for the buyer's calculation, an independent accountant to resolve disputes, and acceleration of the full earnout if the buyer sells the business or terminates the seller without cause.

Can a deal use both, and how should you decide?

Yes. A common structure is cash at closing, a modest seller note for part of the fixed price and a small earnout on top for upside. The note gives the seller a floor, and the earnout bridges the remaining valuation gap. Check how the two interact: can the buyer set off an earnout dispute against note payments, and does a default on the note accelerate the earnout?

To decide, sellers should ask three questions. How much of the price am I willing to risk on decisions I will not make? Can the buyer's balance sheet and cash flow support a note? Is SBA financing involved, which effectively rules out an earnout? The Business Purchase analyzer splits the price in your purchase agreement into guaranteed, held back, paid over time and contingent amounts, and flags whether the note is secured and the earnout defined. Confirm the final terms with your attorney and accountant before you sign.