Earnouts in 2026: Structure, Negotiation and When to Refuse

An earnout is the part of your sale price you haven't been paid yet. The buyer pays some cash at closing and promises the rest if the business hits agreed targets after they own it. It closes the gap between what you think the company is worth and what the buyer will fund today, and it moves the risk of being wrong from their balance sheet to yours.

An earnout is deferred purchase price paid only if the business hits agreed targets, usually revenue or EBITDA, over 1–3 years after closing. Buyers use it to bridge a valuation gap and shift performance risk to the seller. In our work on 50+ M&A transactions, the earnout is where sellers lose the most money after the LOI, so treat it as upside, never as price.

Full disclosure: we run a sell-side M&A advisory practice, so we negotiate earnouts for a living and we've watched founders sign ones that were never going to pay. This guide, written for sellers negotiating in 2026, covers what an earnout is, how it's built, what the deal-terms data says about size and payout, a worked example, the traps, how to negotiate, and when the right answer is no.

What is an earnout and why do buyers propose one?

Buyers propose an earnout for 4 reasons: to bridge a valuation gap without paying for growth that hasn't happened, to shift performance risk onto the seller, to keep the founder engaged through the transition, and to fund part of the price from the company's own future cash flow. All 4 are rational for the buyer. None of them is a reason for you to accept the first version.

Start with the gap. You believe the company is worth $10M because next year's pipeline closes; the buyer believes it's worth $7M because pipelines slip. Nobody is lying, and neither side can prove the future. An earnout says: pay $7M now, and the rest if the pipeline does close. Legal commentators describe exactly this use, alongside aligning incentives and cutting the buyer's upfront cheque (A&O Shearman via the Harvard Law School Forum).

• Valuation gap. The buyer won't pay for a forecast; the earnout lets them pay for it later, only if it arrives.
• Risk transfer. If growth stalls after closing, the buyer paid a lower price. If it doesn't, they pay the full price out of profits the business generated for them. Either way they're covered.
• Retention. An earnout keeps the founder motivated through integration, when customer relationships are most fragile (Axial).
• Cheap financing. Part of the price is funded by the company's own future earnings instead of the buyer's debt or equity, which matters more when borrowing is expensive.

That line from the Delaware bench is the whole subject in 1 sentence. The buyer isn't being unfair by proposing an earnout; they're postponing the price argument to a time when they hold the books, the budget and the sales team. Your job is to make sure the postponed argument is one you can win, or to trade it for cash now.

How does an earnout work? The 7 terms that define it

An earnout is defined by 7 terms: the metric (revenue, EBITDA or a milestone), the measurement period, the threshold and cap, the payment schedule, what happens on a change of control, the buyer's covenants on how the business is run, and the dispute mechanism. Every one is negotiable. We've seen the metric definition alone swing the payout by more than the headline percentage.

The metric is the term that decides everything else. Revenue is the most common choice, followed by EBITDA, and the reason is instructive: sellers want the top line because the buyer's cost allocations can't touch it, while buyers want profit because revenue bought with margin isn't value to them (A&O Shearman). EBITDA is the usual compromise, and it only works if the agreement defines which overheads the buyer may charge to your business. Milestones (a regulatory approval, a signed enterprise contract) are cleaner because they're binary, and life-sciences deals rely on them almost entirely.

Period and cap set the odds. A single cumulative test over 3 years is a coin flip you can't influence by year 3; annual tests with a sliding scale let you bank the first year before integration bites. Acceleration is the term founders forget until the buyer itself gets acquired: fewer than a third of the earnouts in the ABA's 2025 study accelerate on a change of control, so if it isn't in your agreement, your earnout follows the business to an owner who never negotiated with you (Bloomberg Law, citing the ABA study).

How big are earnouts in practice? What the 2026 deal-terms data shows

Roughly a quarter of private-company deals carry an earnout, and where one exists the median potential payout is about a third of the closing payment. The catch: across all deals with an earnout, closer to 1 in 5 earnout dollars actually gets paid (SRS Acquiom). In our work, that payout rate is the number to price a bid on, not the headline.

Here is the picture in 2026. SRS Acquiom's latest Deal Terms Study puts earnouts in 24% of non-life-sciences private-target deals, with a median potential payout of 34% of the closing payment and most measurement periods running 1–2 years. The ABA's Private Target Deal Points Study, which tracks public buyers of middle-market private targets, finds earnouts in only 18% of agreements and notes that fewer than a third accelerate on a change of control. Earnouts cluster in smaller deals: SRS Acquiom reports them in 35% of transactions up to $25M. And across every deal with an earnout, closer to 1 in 5 earnout dollars is ever paid. Put together: the smaller your company, the likelier an earnout; the larger it is relative to cash at close, the likelier it ends in a dispute rather than a payment; and the buyer's covenants, not the headline, decide which.

Two things follow for a seller. First, the earnout is a real term in a quarter of deals and in more than a third of small ones, so plan for it before the first offer arrives; our guide to selling your startup covers where it sits in the process. Second, the payout rate tells you how to value a bid: an offer with a large earnout should be compared with an all-cash offer using what the earnout is likely to pay, not what it could pay.

Earnout example: a $30M sale with an $8M earnout (fictional, worked)

A fictional example: a buyer offers $30M for a SaaS company, most of it at closing and the rest over 2 years if revenue hits agreed targets. Hit both years and the founders get the full price. Miss year two by a modest margin after the buyer cuts the sales team, and the earnout pays a fraction. The gap is decided by decisions the founders no longer make.

Meet Northwind, a fictional B2B SaaS company. The founders want $30M; the buyer's model supports $22M. The compromise: cash at closing at the buyer's number, plus an earnout of up to $8M split equally across 2 annual revenue tests. Each test pays nothing below 90% of target, the full tranche at target, and a straight line in between. No cliff, no cumulative test, and the agreement defines revenue by the company's historical recognition policy, with a worked calculation attached as a schedule.

Nothing in scenarios B and C is misconduct. Merging sales teams and bundling products are ordinary integration decisions, and each one cut the founders' proceeds by more than any price negotiation would have. That's why we model the founder waterfall at every bid before advising on one. In our work, a $25M all-cash offer can net founders more than a $35M deal with 25% rollover and a 3-year earnout, and founders who haven't run that comparison tend to anchor on the bigger headline. Our valuation and financial modeling teams build that comparison as a standard part of a sell-side mandate.

What are the 5 earnout traps that cost sellers money?

5 traps account for most of the earnout money we've seen sellers lose: the buyer controls the metric, integration changes the business the target was set for, the accounting definitions leave room for overhead and revenue-recognition choices, indemnity claims get set off against the payout, and disputes take years to resolve. Each is a drafting problem before it's a performance problem.

1. The buyer controls the metric. After closing, the buyer sets prices, headcount, marketing spend and which customers to keep. An EBITDA target is theirs to hit or miss; you only own the consequences.
2. Integration kills the metric. The target was set for a standalone company. Merge the sales team, retire a product line or move customers onto the buyer's contract paper, and 'Northwind revenue' stops being measurable. Delaware courts have spent years on exactly this question (A&O Shearman).
3. Accounting definitions. Which overheads are charged to your unit, how revenue is recognised, what counts as extraordinary. Without a schedule and a worked example, every one is decided by the buyer's finance team.
4. Setoff. More than half of earnouts let the buyer deduct indemnity claims from the payout. A disputed claim can freeze money you've already earned.
5. Disputes. The largest recent example is Johnson & Johnson's purchase of Auris Health: $3.4B at closing with up to $2.35B in milestones, followed by a trial in which the court found the buyer had breached its efforts obligation and committed fraud (A&O Shearman). Few sellers can fund that fight.

How do you negotiate an earnout?

Negotiate the metric before the amount: pick one you influence after closing, add a floor and a sliding scale instead of a cliff, shorten the period, and write down how the buyer must run the business. Then secure information rights, change-of-control acceleration, and an independent accountant as the dispute route. In our work, sellers with 2+ bidders get most of this; sellers with 1 get the buyer's draft.

1. Pick a metric you can move. Revenue or gross profit over EBITDA; a milestone over any financial metric if a clean one exists. If the buyer insists on EBITDA, fix the overhead allocation in a schedule and cap it.
2. Replace the cliff with a curve. A floor at which partial payment starts, a straight line to the cap, and annual tests so the first year is banked before integration lands.
3. Shorten the period. Every extra year adds decisions you don't control. If the buyer wants 3 years, ask what they'd pay in cash for a 2-year version.
4. Write the operating covenants. Consistent with past practice, an agreed budget and headcount, no cost-shifting into your unit, separate books, no disposal of the business. Buyers resist these and most sellers give up too early, which is why the covenants appear in a minority of deals.
5. Get information rights. Monthly reporting against the metric, access to the ledger, and an audit right at the buyer's cost if the variance exceeds an agreed threshold.
6. Accelerate on change of control and termination without cause. If the buyer sells the business or removes you, the remaining earnout pays out at the cap. Exclude resignation and for-cause termination so the buyer can accept it.
7. Name the referee. An independent accountant 'acting as an expert, not an arbitrator', limited to calculation disputes, on a short timetable; that drafting distinction has decided real cases (A&O Shearman).
8. Trade it. Every earnout has a cash equivalent. Ask for the price with no earnout, the price with a seller note, and the price with the earnout, and compare them at the payout you actually expect.

None of these moves works without leverage, and leverage comes from the process rather than the clause. A seller with 1 bidder negotiates the buyer's draft; a seller with 3 chooses between structures, and the earnout becomes a choice rather than a condition. Advisors on Axial's network say the same thing in fewer words: the best defence against a bad earnout is leverage (Axial). That is the strongest argument for running a competitive process and, if you hire help, for hiring someone who has negotiated these terms before: our guides to the best M&A advisors for startups and to M&A advisor fees cover how to choose and what it costs.

When should you refuse an earnout?

Refuse an earnout when the buyer won't fix the metric definition, won't accept any operating covenant, or plans an integration that makes the target unmeasurable. Refuse it when the cash at close is below your walk-away number, because an earnout that can pay zero doesn't change that. And refuse it when a credible all-cash bid exists at a lower headline; in our experience it usually nets more.

The cleanest test: would you sell the company for the cash at close alone? If yes, the earnout is upside and you can accept more risk in its terms. If no, you are relying on the earnout to reach your number, and the data says most of that money never arrives. Check what your sector's exit multiples support before you decide whether the cash portion is a fair standalone price or a discount dressed up with a contingent bonus.

How does Waveup handle earnouts in a sell-side process?

We treat the earnout as a valuation problem first and a drafting problem second. Every bid is modelled through the founder waterfall at the payout we expect, not the cap, so a smaller all-cash offer can beat a larger structured one. Then we run enough parallel buyers that the earnout is one option among several. M&A advisory starts from a $10K retainer, no success fee on the advisory work.

In practice that means 3 things inside a mandate. The CIM and model are built so the buyer's synergy case is explicit, which narrows the valuation gap the earnout is supposed to bridge. The buyer list is wide enough that at least 2 bidders reach the LOI stage, which is when earnout terms are actually negotiated. And the earnout schedule, metric definitions and covenants are drafted with your counsel before exclusivity, not discovered in the purchase agreement. Olena Petrosyuk, who leads our M&A practice, is ex-Lazard, JP Morgan and Oliver Wyman with 10+ years in M&A, and she writes or reviews every CIM we produce.

You don't need us if you have 1 obvious buyer, experienced M&A counsel and a cash offer that clears your number; in that case the earnout is a drafting exercise your lawyer can run. You do need help when the earnout is the difference between yes and no, because that's when leverage, modelling and the buyer list matter more than the clause. Full sell-side processes run 6–12 months industry-wide; in our work, prepared sellers close about 70% faster than sellers running alone.