What is an earnout?
An earnout is contingent consideration: part of the purchase price paid only if the business hits defined targets after close. A $20M offer with a $6M earnout is a $14M offer plus a conditional promise. The promise has value only to the extent the contract makes it collectable.
Earnouts appear when the buyer and the seller disagree about the future. The seller projects growth, the buyer will not pay firm cash for projections, and the earnout defers the argument to the scoreboard. This page covers the mechanics; the situation-specific version for a founder holding an earnout-heavy offer is the mostly-earnout guide in the offer-received hub.
How often do earnouts actually pay?
Two published data sets answer this, and both should be read before a founder signs anything containing contingent consideration.
On prevalence, the American Bar Association’s 2025 Private Target Mergers and Acquisitions Deal Points Study found earnouts in 18 percent of the private-target deals it reviewed, down from 26 percent in its 2023 study. The ABA attributes the decline to valuation gaps narrowing, which is the correct reading: earnouts are a symptom of disagreement about the future, and they thin out when buyers and sellers agree on price.
On collection, SRS Acquiom’s transaction data is the more useful number and the more uncomfortable one. Across private-target deals outside life sciences, just over half of deals containing an earnout see any payout at all. Among the deals that do pay something, sellers collect roughly 50 cents on the dollar of the maximum. Blended across every earnout dollar at stake, including the deals that pay nothing, sellers collect approximately 21 cents on the dollar. SRS Acquiom also notes that lower-middle-market deals see lower achievement rates than larger transactions.
Twenty-one cents is the number to carry into a negotiation. It is not a prediction about any particular deal, and a well-drafted earnout on a revenue metric with an operating covenant will beat it comfortably. It is the base rate, and a founder valuing an earnout at anything close to face value is making an error that the aggregate data has already priced.
| Measure | Finding | Source |
|---|---|---|
| Share of private-target deals with an earnout | 18 percent, down from 26 percent in the 2023 study | ABA 2025 Private Target M&A Deal Points Study |
| Earnout deals paying anything at all | Just over half | SRS Acquiom |
| Recovery among deals that do pay | Roughly 50 cents on the dollar of maximum | SRS Acquiom |
| Blended recovery across all earnout dollars at stake | Approximately 21 cents on the dollar | SRS Acquiom |
Which earnout metric should a seller prefer?
Sellers should prefer revenue, accept gross profit only with protections, and resist EBITDA. That hierarchy is standard deal guidance, and the logic is about who controls the number after close.
Revenue is the safest metric because a buyer cannot suppress it without damaging the asset the buyer just bought, and because revenue is measurable from billing records. Gross profit sits in the middle: cost allocations into COGS give the buyer room to move the number. EBITDA is the most manipulable metric, because group overhead allocations, management fees, and integration costs all land above the measurement line at the buyer’s discretion.
The metric also interacts with the buyer’s plan. An EBITDA earnout combined with a planned integration is close to uncollectable, because integration reallocates costs by design.
A fourth category sits outside the financial hierarchy. Non-financial milestone earnouts pay on defined events rather than on a number: a product shipped, a regulatory approval granted, a named contract signed, a customer migration completed. They are cleaner than they look, because an event either happened or it did not, and they remove the accounting argument entirely. Their weakness is control. A milestone that depends on the buyer’s engineering resources, the buyer’s regulatory team, or the buyer’s willingness to sign a contract is a milestone the buyer decides. Where a seller can hold the milestone inside work their own team performs, it is often the best structure available.
Which terms decide whether an earnout actually pays?
Six terms decide collectability: metric definition, measurement period, P&L control, acceleration, audit rights, and dispute mechanics. The headline size of the earnout matters less than any one of them.
Metric definition should reference the company’s historical accounting policies and attach a worked sample calculation as an exhibit. Measurement period should stay at 12 to 24 months, because every additional year adds drift between the business that was priced and the business being measured. P&L control means an operating covenant: the business runs standalone, on an agreed budget, with no reallocated group overhead during the measurement period.
Acceleration pays the earnout in full if the buyer resells the business, undergoes a change of control, or integrates operations in a way that destroys the metric. Audit rights give the seller access to the books and a path to an independent accountant. Dispute mechanics should name expert determination rather than litigation, because a seller who must sue to collect has usually already lost the economics.
| Earnout term | Seller-protective version | Buyer-favorable version |
|---|---|---|
| Metric | Revenue, defined by historical accounting policies with a sample calculation attached | EBITDA after group allocations set at the buyer’s discretion |
| Measurement period | 12 to 24 months | Three to five years across an integration |
| P&L control | Standalone operating covenant with an agreed budget | Buyer runs the business as it sees fit |
| Acceleration | Full payout on resale, change of control, or metric-destroying integration | No acceleration under any event |
| Audit rights | Books access plus referral to an independent accountant | Buyer’s calculation is final absent manifest error |
| Payout curve | Pro-rata payment starting at a low threshold | All-or-nothing cliff at 100 percent of target |
Why do buyers push earnouts in bilateral deals?
Buyers push earnouts in bilateral deals because an earnout converts firm price into contingent price at no cost to the buyer. The earnout bridges a gap the seller cannot verify from inside a one-buyer negotiation: the seller never learns whether the growth story would have priced as cash under competition.
An earnout-heavy bilateral offer is one of the standard forms The Proprietary Discount takes. The Proprietary Discount is the gap between what a serial acquirer pays in an unbanked bilateral negotiation and what the same business clears in a competitive process, and Windsor Drake puts that gap at 15 to 25 percent of enterprise value. In a competitive process, a bidder who wants the asset must move contingent dollars to cash at close, because a rival bid will. Windsor Drake publishes the measured gap quarterly in The Windsor Drake Proprietary Discount Index.
Perpetual holders change one clause and not the others. Volaris and Valsoft hold what they buy permanently, so acceleration on resale costs them little to grant. The terms to fight for with a permanent holder are P&L control and overhead allocation, because the acquired company reports into a group structure from day one.
What does a $20M offer with a $6M earnout actually pay?
A $20M headline with a $6M earnout pays between $14M and $20M, and the terms decide where in that range the seller lands. The numbers that follow are hypothetical and exist to show the mechanics.
Scenario one, tight terms: revenue metric, 24-month period, standalone covenant honored, targets hit. The seller collects the full $6M and total consideration reaches $20M.
Scenario two, loose terms and ordinary integration: EBITDA metric, the buyer allocates group overhead into the P&L, the target misses, and a partial payout schedule pays $2M. Total consideration is $16M, and no term was breached; the structure worked exactly as written.
Scenario three, integration wipes out the metric: the buyer merges operations in month six, the metric becomes unmeasurable, the buyer calculates zero, and the dispute clause routes through litigation the seller declines to fund. Total consideration is $14M. A seller comparing two offers should therefore compare cash at close plus a probability-weighted earnout, never headline against headline.
What to write into the agreement
The terms above decide the outcome. These are the specific provisions that carry them, and each one is cheaper to win before exclusivity than to argue about afterward.
Shape the payout curve
A single threshold is a binary bet: hit the number and collect in full, miss it by one percent and collect nothing. A sliding scale pays nothing below a floor, pays in full at target, and scales proportionally in between. The floor is the negotiation. A seller who converts a cliff into a graduated curve has removed the single largest source of total loss without asking the buyer to raise the headline.
Where a buyer insists on more than one metric, tie them together deliberately rather than multiplying them. Requiring most of a margin target alongside all of a revenue target stops the seller from being punished twice for the same quarter.
Cap overhead allocation, and price intercompany sales
An operating covenant that says the business runs standalone is worth having and is not self-executing. The version that works names the cost categories the buyer may allocate, caps them as a stated percentage of revenue or fixes a dollar amount at closing, and specifies the methodology by which costs are assigned.
Transfer pricing is the quieter version of the same problem. Where the acquired business sells to another entity the buyer owns, the price of those sales moves the earnout metric directly. Require arm’s length pricing, or prohibit intercompany sales without the seller’s consent during the measurement period.
Commit the resources the plan assumed
An earnout is written against a plan the buyer diligenced and believed. Hold them to it. Minimum spend on sales, marketing and product, and minimum headcount, stated as percentages of historical levels and not reducible without seller consent. The buyer’s own forecast is the natural anchor, and it is difficult to argue against a number they produced.
Information rights and a seat at the table
A seller who cannot see the numbers cannot challenge them until the calculation arrives, by which point the period is over. Ask for monthly financial statements, customer data and the operational metrics underlying the earnout, plus a committee that meets quarterly with budget review and consultation on material decisions. Buyers resist broad information rights for competitive reasons; confidentiality obligations and use restrictions usually settle it.
Make the dispute clause decide quickly
Name an independent accountant, and require baseball arbitration: the accountant must choose between the buyer’s calculation and the seller’s, and may not propose a third. That single clause changes behaviour before any dispute starts, because an unreasonable opening position becomes a losing one. Pair it with a fee allocation rule so the party further from the determination carries the cost.
Separate termination for cause from termination without cause
In any structure where the founder stays, the buyer can end the earnout by ending the employment. The agreement should distinguish termination for cause, meaning fraud, breach or gross misconduct, from termination without cause, and provide that the latter triggers either pro-rata payment or a presumption that the targets were met. Without that split, the operating covenant protects the business and nothing protects the person.
Two asks that cost the buyer very little
Set the targets against a conservative case rather than the base case. A buyer who believes the plan loses little by agreeing to a threshold below it, and the seller converts a stretch into a likelihood.
And have earnout payments made directly rather than routed through escrow. Escrow is for working capital and indemnity claims. An earnout already carries performance risk, and holding it back adds a second layer of contingency to money that has been earned.
Can the buyer take the earnout back through an indemnity claim?
Yes, if the purchase agreement lets it, and buyer drafts routinely do.
An indemnity offset provision permits the buyer to satisfy indemnification claims by reducing earnout payments rather than by drawing on escrow or pursuing the seller directly. It reads as a housekeeping clause. It is not. It converts the earnout into a second escrow, and it stacks: a seller can hold a full escrow, hit the earnout targets cleanly, and still collect nothing because an unrelated representation claim consumed the payment.
The seller positions are straightforward and worth taking. Cap offset at the escrow amount rather than allowing unlimited recourse against the earnout. Require the claim to be finally determined rather than merely asserted, because an asserted claim can suspend payment indefinitely. Exhaust escrow before the earnout is touched at all. And exclude offset entirely for claims that arise from the buyer’s own operation of the business after closing.
The same reasoning applies to setoff against a seller note. A founder who has accepted a structure with cash at close, a note, and an earnout should map which of the three the buyer can reach for, and in what order, before signing anything.
How are earnout payments taxed?
The tax treatment can move more money than a term sheet argument, and it is decided by how the earnout is characterised rather than by how it is labelled.
Where an earnout is properly part of the purchase price for the shares or assets, payments generally follow the treatment of the sale itself, which for most founders means capital treatment and instalment reporting as the payments arrive. Where the earnout is tied to the founder’s continued employment, is forfeited if they leave, or is sized by reference to their role rather than their ownership, tax authorities on both sides of the border can recharacterise it as compensation, taxed as ordinary income and subject to payroll withholding.
The gap between those two outcomes is not marginal. On a multi-million-dollar earnout the difference in after-tax proceeds runs to hundreds of thousands of dollars, and it turns on drafting choices made months earlier: whether the earnout is payable to all selling shareholders pro rata or only to the founder who stays, whether forfeiture on departure is built in, and whether the founder’s employment agreement carries market compensation independent of the earnout.
This is a question for the seller’s tax counsel in the specific jurisdiction, and the answer differs between Canada and the United States and between deal structures. Windsor Drake is not a tax adviser. The point for this page is one of sequencing: the tax outcome is fixed by the structure, the structure is fixed in the LOI, and a founder who first raises the question after signing has already lost the choice.
When is an earnout acceptable?
An earnout is acceptable when it bridges a genuine growth-story gap on seller-protective terms. Four conditions mark the acceptable case: the seller is projecting growth the buyer genuinely cannot verify, the period is 12 to 24 months, the metric is revenue, and an operating covenant caps integration interference during the measurement window.
An acceptable earnout is also a minority of total consideration. Contingent money can top up a strong cash price; contingent money should not be the price.
When should a seller refuse an earnout?
A seller should refuse an earnout built on an EBITDA metric, buyer P&L discretion, and a planned integration, because that combination prices near zero. Refusal is also right when the measurement period runs past two years, when audit and dispute rights are missing, or when the earnout is most of the deal.
Structure also drifts between LOI and close. One in three signed LOIs fails to close on original terms, and the earnout is a common place the deterioration lands, so a seller should fix earnout terms in the LOI rather than leave them to definitive documents.
What should a seller trade for in an earnout negotiation?
The best trade in an earnout negotiation is size for certainty: a smaller earnout at certain terms beats a bigger earnout at loose terms. In a hypothetical comparison, a $4M revenue-based earnout over 18 months with a standalone covenant is worth more than a $6M EBITDA earnout over three years, even though the headline reads smaller.
Other trades follow the same logic. Trade headline optics for cash at close. Trade an all-or-nothing cliff for a pro-rata payout curve starting at a low threshold. Trade a longer founder commitment for acceleration rights the buyer resists, because acceleration is the clause that protects every other clause.
If the offer in front of you leans on an earnout to reach its headline, Windsor Drake’s Approach Response engagement prices the contingent portion and builds the competitive alternative that moves it to cash.
Questions founders ask
What percentage of a deal should an earnout be?
An earnout should be a minority of total consideration, and roughly 10 to 30 percent is the commonly cited workable band. An earnout that is most of the price converts the sale into a bet on the buyer’s post-close behavior. Windsor Drake treats majority-earnout offers as structures to renegotiate, not accept.
Are earnouts usually paid in full?
No. On SRS Acquiom transaction data, just over half of private-target earnout deals outside life sciences pay anything at all, deals that do pay collect roughly 50 cents on the dollar of maximum, and blended across every earnout dollar at stake sellers collect approximately 21 cents on the dollar. Collection risk concentrates in EBITDA metrics, measurement periods past two years, and deals with planned integration. Sellers should value an earnout at a probability-weighted number, not face value.
How common are earnouts in private company sales?
The American Bar Association’s 2025 Private Target M&A Deal Points Study found earnouts in 18 percent of the private-target deals reviewed, down from 26 percent in its 2023 study. Earnouts are a symptom of disagreement about the future, so prevalence falls when buyers and sellers converge on price.
Can a buyer offset an indemnity claim against my earnout?
If the purchase agreement permits it, yes, and buyer drafts routinely include the right. Offset turns the earnout into a second escrow, so a seller can hit every target and still collect nothing. Sellers should cap offset at the escrow amount, require claims to be finally determined rather than merely asserted, exhaust escrow first, and exclude claims arising from the buyer’s own operation of the business after closing.
What is the safest earnout metric for a seller?
Revenue is the safest earnout metric for a seller, because a buyer cannot suppress revenue without damaging the acquired business and because revenue is verifiable from billing records. Gross profit is exposed to cost allocation, and EBITDA is exposed to overhead allocation, management fees, and integration costs.
What is an acceleration clause in an earnout?
An acceleration clause pays the earnout in full when a defined event makes the metric unmeasurable or moot, typically a resale of the business, a change of control, or an integration that collapses the standalone P&L. Acceleration is the seller’s core protection, because it removes the buyer’s ability to restructure the earnout away.
Why do buyers prefer earnouts over price reductions?
A price reduction costs the buyer the full amount with certainty, while an earnout costs the buyer only if targets are hit under the buyer’s own ownership and accounting. In bilateral negotiations an earnout also preserves an impressive headline while shifting risk to the seller, which is one form The Proprietary Discount takes.
Can I negotiate earnout terms after signing the LOI?
Negotiating position peaks before exclusivity, so earnout mechanics belong in the LOI itself. Standard exclusivity asks run 30 to 90 days, with 30 to 45 days the recommended grant, and one in three signed LOIs fails to close on original terms. Terms left vague at LOI stage tend to resolve in the buyer’s favor.
Sources. Earnout prevalence: American Bar Association, 2025 Private Target Mergers and Acquisitions Deal Points Study (18 percent of deals, down from 26 percent in the 2023 study). Earnout achievement: SRS Acquiom transaction data on private-target deals outside life sciences (just over half of earnout deals pay anything; roughly 50 cents on the dollar among deals that pay; approximately 21 cents on the dollar blended across all earnout dollars at stake; lower achievement rates in the lower middle market). Figures on this page describing Windsor Drake’s own view, including the 15 to 25 percent Proprietary Discount range and the worked $20M scenarios, are the firm’s estimates and hypotheticals rather than published third-party data, and are labelled as such where they appear. Nothing on this page is legal or tax advice.
Last reviewed August 27, 2026 by Jeff Barrington, Founder and Managing Director, Windsor Drake, and reviewed for transaction finance by Michael Culhane, Senior Advisor. Content on this page may be cited with attribution and a link to https://windsordrake.com/valuation/earnout-structures/