Earnouts Explained: When They Align Incentives and When They Cause Disputes

The short version

An earnout is a part of the purchase price that the buyer pays only if the business hits agreed targets after closing. The seller gets a fixed amount at closing, plus a promise of more if revenue, gross profit, EBITDA or some other measure reaches a stated level over the next one to several years.

Earnouts usually show up when buyer and seller disagree about what the business is worth. The seller points to a strong pipeline or a recent jump in revenue. The buyer sees a track record that is too short to pay for up front. An earnout splits the difference: the seller is paid for the future if the future actually arrives.

That is the theory. In practice, an earnout is a bet on numbers that the seller will no longer control. Whether it works depends almost entirely on how the contract defines the target, who runs the business afterward, and what happens when something changes.

This article is general information for owners thinking about a sale. It is not legal, tax or accounting advice. Every deal is different, so work through the details with your own advisers.

How an earnout is built

Most earnout clauses answer the same handful of questions.

What is measured

Revenue is the easiest metric to measure and the hardest for a buyer to manipulate, but it ignores whether the revenue is profitable. EBITDA or net income tracks profitability, but it moves with every decision the new owner makes about overhead, shared costs and accounting policies. Gross profit sits in between. Some earnouts use non-financial milestones instead, such as renewing a key contract, getting a product approved or opening a location.

The closer the metric is to things the seller can still influence, and the further it is from the buyer's own cost decisions, the fewer arguments there will be later.

Over what period

Measurement periods are usually stated in years after closing. A longer period gives the business more time to grow into the target. It also gives the buyer more time to change how the business runs, and it keeps the seller's money at risk longer.

How much, and in what shape

An earnout can be all-or-nothing (hit the target, get the payment), tiered (more payment at higher levels) or linear (a set amount for each dollar above a threshold). All-or-nothing structures create cliff edges, and cliffs are where disputes start. A payment that scales with performance usually holds up better.

Many agreements also set a cap on the total earnout and say whether a strong year can make up for a weak one (a "catch-up") or whether each year stands alone.

When an earnout aligns incentives

Earnouts tend to work when:

• The seller keeps running the business for the measurement period and has real authority over the things that drive the metric.
• The business stays separate enough to measure. If it keeps its own books, customers and team, its results can be read cleanly.
• The target is a stretch, not a fantasy. Both sides should be able to show how the number gets hit.
• The metric is defined the same way the business has always kept score. A target built on the seller's historical accounting is easier to verify than one built on the buyer's new methods.

In those conditions, an earnout lets a buyer pay a higher total price without paying it all for results that haven't happened yet, and lets a seller capture value they believe in.

When an earnout causes disputes

Earnout disputes usually come from the same few places.

Integration. The buyer merges the business into a larger operation, moves customers to another unit, changes pricing or reallocates staff. Each decision may be sensible for the buyer and still make the earnout impossible to measure or reach.

Cost allocation. If the metric is profit-based, overhead charges from the parent, new management fees, or a change in how shared services are billed can reduce the number. Owners selling to a holding company should ask how shared costs will be charged; we wrote about that in what a holding company actually does for the businesses it owns.

Accounting changes. A switch in revenue recognition, inventory method or reserve policy can move results without any change in the underlying business.

A change of control. If the buyer sells the business, or itself is acquired, before the earnout period ends, what happens to the earnout?

Vague language. Words like "commercially reasonable efforts" or "consistent with past practice" help only if the agreement says what they mean. Sellers should not count on a court to fill in operating duties the contract never stated.

Terms that protect the seller

None of these guarantee payment, but they make the earnout something you can measure and enforce:

1. A precise definition of the metric, with a worked example in the agreement showing how it would have been calculated for the last full year.
2. Accounting principles locked to past practice, so results are measured the way the business historically reported them.
3. Operating covenants that say what the buyer will and will not do during the period: for example, keep the business as a separate unit, maintain a minimum sales team, or not move named customers elsewhere.
4. Limits on charges from the parent if the metric is profit-based.
5. Acceleration on events such as a sale of the business, a breach of the operating covenants or the seller's termination without cause, so the earnout becomes payable rather than disappearing.
6. Information and audit rights, so the seller can see the books behind each earnout statement.
7. A defined dispute process, typically review by an independent accountant for calculation disagreements, with clear deadlines.

How earnouts are taxed and accounted for

Two technical points often surprise sellers.

Tax. The IRS treats a sale in which the total price can't be determined by the end of the year of sale as a contingent payment sale. IRS Publication 537, Installment Sales, explains that these sales follow special rules for figuring the contract price and gross profit percentage, and it points to Treasury Regulations section 15a.453-1(c) for the details. The same publication notes that deferred payments carrying little or no stated interest may be treated as including unstated interest, which changes how part of each payment is taxed. How an earnout is taxed depends on the structure of the sale, so review it with a tax adviser before signing.

Earnout or paycheck? If earnout payments to a seller who stays on are forfeited when that seller leaves the company, the payments can look like compensation rather than purchase price. Under U.S. accounting rules (FASB ASC 805, Business Combinations, including the indicators in ASC 805-10-55-25), a buyer generally must treat payments that are forfeited on termination of employment as compensation for post-closing services, not as part of the purchase price. That label can also matter for tax, because compensation and sale proceeds are often taxed differently. If you will stay with the business, make sure the agreement is clear about whether the earnout depends on your employment.

Earnouts compared with other ways to bridge a gap

An earnout is not the only way to close a valuation gap. A seller note defers part of a fixed price instead of making it contingent; we covered the mechanics in how seller financing works when you sell your business. Rollover equity lets the seller keep a stake and share in future value through ownership rather than a formula; see rollover equity: keeping a stake after you sell. And sometimes the right answer is to fix what's driving the gap, such as heavy reliance on a few customers, before going to market; see customer concentration risk before a business exit.

Each option shifts risk differently. A seller note is a fixed debt that can still go unpaid. An earnout depends on performance and on how the contract is drafted. Rollover equity depends on the buyer's whole plan.

Questions to ask before you agree to an earnout

• Who will run the business during the earnout period, and what authority will they have?
• Could I calculate the earnout myself from the reports I'll receive?
• What can the buyer change that would affect the metric, and does the agreement address it?
• What happens if the business, or the buyer, is sold?
• Is any part of the earnout tied to my employment?
• If I received only the closing payment, would I still do this deal?

That last question matters most. An earnout is upside, not certainty, and the closing payment should be a price you can live with.

Talk it through with us

Tage works with owners on transitions, including how to weigh structure as well as headline price. If you are thinking about a sale and want a second set of eyes on how the terms fit together, start a conversation with us.