M&A Earnouts: How They Work, Why Nearly Half of Sellers Get Nothing, and How to Negotiate Better Terms

What Is an M&A Earnout?

It’s a buyer’s payment to the seller’s management team contingent upon their hitting defined performance goals after the sale closes. This article — written from the seller’s perspective — covers why buyers ask for them, how they work, why they so often disappoint, and how to negotiate one you might actually collect.

Key Takeaways

• Earnouts appeared in just 18% of private-target deals in 2025 — the lowest share since 2006, down from 26% two years earlier.
• Only about 55% of sellers with an earnout collect anything at all.
• Across all earnout deals, roughly 21 cents of every potential earnout dollar actually gets paid.
• What decides whether you get paid isn’t the metric. It’s who calculates the result, whether the buyer can offset claims against it, and whether your protections are in writing.

Earnout Use Is Cyclical

Earnouts are in retreat. They appeared in about 20% of private target deals in 2021, peaked near 26% in 2023, then fell to about 18% in 2025. Life sciences is the exception: those earn-outs are much more common because so much value hinges on unproven clinical milestones.

Understanding why matters, because the same forces determine whether you’ll face one. Four things drove the reversal:

• Sellers got their negotiating mojo back. The 2023 peak came during a buyer’s market. As deal activity recovered and processes became competitive again, sellers stopped accepting contingent paper and pushed for more cash at close instead.
• Financing reopened. Earnouts are partly a financing tool. When debt is expensive and scarce, a buyer who can’t fund the full price tries to defer part of it in the form of payments (earnouts) due later. As credit loosened and private equity buyers returned in force, that pressure eased.
• Price expectations finally reset. The 2022 jump in rates and inflation deflated valuations overnight, but sellers kept pricing off 2021 comparables. Earnouts bridged the gap between what buyers were willing to pay and what sellers demanded. It took roughly two years for seller expectations to adjust downward, and once they did, the need for earnouts declined.
• Buyers soured on them too. Earnouts delay disagreements over value rather than settling them. Unfortunately, those disagreements have gotten expensive — putting aside legal fees, one 2024 Delaware ruling cost a buyer more than $1 billion for violating its earnout covenants.

One caveat worth knowing, because it may apply to you: earnouts remain concentrated in smaller transactions. On deals under $10 million, the earnout is often nearly 40% of the price, versus about 20% on deals above $500 million.

Earnout Benchmarks: Size and Duration

Revenue drives about two-thirds of earnouts. The rest split among EBITDA, other financial-statement metrics, and operating milestones like R&D or client retention. For sellers, one rule carries the most weight: the further down the income statement your earnout driver sits, the more exposed it is to decisions you don’t control.

Earnouts average roughly 15% to 20% of total deal value excluding those in life sciences. That assumes full payout, which as we’ll see is a large assumption. The typical earnout period runs two years, with a practical range of six months to five years, usually limited by how long you’re willing to stay.

Of the 55% of sellers who collect something, about half reach the maximum possible. So roughly a quarter of all sellers with an earnout get everything they hoped. At least a quarter of earnouts end up contested.

Why So Many Earnouts Go Unpaid

Four things account for most failures, and only one of them is performance.

The targets were never realistic. Optimism that helps close a deal makes for terrible forecasting, and the number that gets written into the agreement is often one nobody could have hit.

The metric was vulnerable. The further down the income statement your driver sits, the more exposed it is to decisions you no longer control. EBITDA-based earnouts pay out least often for exactly this reason.

The buyer controlled the scoreboard. The buyer prepares the calculation, andwhere the agreement is silent on audit rights, objection windows, and dispute resolution, the buyer’s number stands.

The goalposts moved — often unintentionally. Picture a parent company that raises corporate overhead allocations across its entire portfolio for reasons unrelated to your business. The charge lands on your EBITDA. The buyer didn’t set out to shortchange you but you still don’t get paid.

Notice what isn’t on this list: your business underperformed. That happens too. But most unpaid earnouts fail on structure, which is the part you can negotiate.

Key Earnout Terms

Performance Metrics

The targets your team must hit to qualify for payment:

• Revenue. Typical for growth-stage businesses where scaling matters more than margin. Historically the highest-paying metric, for the reason noted above: it sits relatively untouched at the top of the income statement.
• EBITDA. More common in slower-growing or older companies valued on cash flow. Historically the lowest-paying metric because of all the things that can affect it, some of them out of the seller’s control, again like corporate overhead.
• Client retention. Common for service delivery businesses, and useful for motivating your team to protect high-value accounts.
• Product or R&D milestones. In fields like AI, an earnout may turn on IP filings or successful product launches.
• Strategic goals. Whatever motivated the buyer to acquire you — often sales of your products into the buyer’s customer base or vice versa.
• Other. Network effects, technology transfer into the buyer’s product line, hybrid formulas combining two weighted metrics, and similar constructions.

Payment Terms

Usually cash. Measurement periods are typically annual rather than quarterly, with payment falling due within 60 to 90 days after the buyer delivers its earnout statement.

Earnout Period

Typically, one to three years, with a median of two. Milestone-driven and life-sciences deals often run longer.

Cap or Maximum Payout

The ceiling on what you can earn. Not all earnouts have one, and in our view few should. Why limit your reward during the earnout period as long as the buyer keeps benefiting from your success?

What You Gain

An earnout can maximize your valuation, keep your team motivated and loyal — especially if you share the proceeds with key employees — and reduce your overall risk when part of your consideration at close is illiquid or volatile, like private company stock.

What You Risk

• Lack of control. You may face buyer-imposed obstacles to hitting your targets, particularly when the buyer doesn’t understand your operations or starts folding them into its own.
• Poorly designed metrics. One seller we know was charged after close for the buyer’s HR department, a service it had been buying elsewhere for a fraction of the price. Its earnout was based on EBITDA growth. Ouch.
• Aggressive targets. Unrealistic goals demoralize teams, and this isn’t only the buyer’s fault. Sellers overpromise in their enthusiasm to close, then to their surprise find themselves held to their own hockey-stick projections.
• Set-off. Many purchase agreements let the buyer deduct indemnification claims from earnout payments. That one clause turns every post-close dispute into a direct hit against your earnout comp, and gives the buyer an incentive to look for claims. Try to exclude set-offs, cap them, or confine recovery to the amount being held in escrow post close. At minimum, require that claims be finally resolved before anything is deducted.
• Buyer credit risk. An earnout is an unsecured promise, usually ranking behind the lenders who financed your deal. If the buyer is thinly capitalized or heavily levered, ask for escrowed funds, a parent guarantee, or security. Earnout rights are also generally non-transferable, so you can’t sell or borrow against yours.

PEG vs. Strategic Buyer: How Buyer Type Changes Your Earnout

Almost all private equity groups allow selling managers who stay on to buy minority (“rollover”) equity in the successor company at the same price the PEG paid. Since most PEGs consider that incentive enough, only about a fifth also offer earnouts. Those earnouts tend to be lower risk, because you’ll keep running the business as a stand-alone entity and making the operating decisions.

The exception is a PEG that owns companies which could synergize with yours. Those firms behave like strategic buyers, with the risks (and potential opportunities for revenue increases) that follow.

Integration Raises the Risk

Any integration effort compromises your control over expenses to some degree. That would matter less if integrations reliably worked. Bain’s surveys have found roughly 60% of deals fall short of the acquirer’s own expectations, and the broader research has long put failure rates at 70% or higher. Bain now argues experienced serial acquirers have improved those odds considerably, something worth knowing when you’re sizing up potential buyers. When integrations fail, sellers chasing earnout goals become collateral damage.

The partial antidote: again, negotiate metrics as high up the income statement as possible. Revenue is the least vulnerable, though even it suffers when marketing, sales, support, or R&D get cut. In contrast, an earnout tied to after-tax profit can be bled dry a hundred different ways.

Buyer Type Also Sets the Clock

Your buyer’s identity determines how long you’re signing up for, and the two profiles are quite different.

PEGs are working toward a sale of their own, typically in about five years. Unless you’re underperforming, they’ll want your team in place until then. They’re not operators themselves and would rather not hassle with recruiting replacements.

So, expect an earnout period measured against that horizon, five years or more. In exchange you get continuity, operating control as a stand-alone entity, rollover equity, and time to recover from a bad quarter.

In contrast, strategic buyers are operators. They often believe they already have the talent they need in-house, so they retain fewer of your people for shorter periods, and earnout terms around two years are common. You’re free sooner, but the tradeoff is that two years leaves little room to recover from disappointment, and corporate integration may limit your ability to do something about it anyway.

Neither is better. If you don’t want to spend another five years running the business, a strategic buyer is a better fit: just price the shorter runway into your earnout targets. If you’re happy to stay and want a second bite at the apple, the PEG’s longer clock provides more time to achieve earnout targets, and probably with less interference along the way.

How to Negotiate Favorable Earnout Terms

Model It First

Work with your M&A advisor on a financial model that simulates operating inside the buyer’s environment. Ideally you get the buyer’s input when doing this, though they may hesitate for fear you’ll use the data to reprice the deal. Either way, committing to an earnout before you know whether it’s achievable is like flying into clouds without an instrument rating.

Contain Integration Risk

Build an integration roadmap before closing, not after. It should define who’s responsible for what, when, and how. The best strategic acquirers name a deal champion from their own ranks to own both the transaction and the integration; research consistently links dedicated integration leadership to better outcomes.

Simplify and Freeze Earnout Metrics

Use drivers that are unambiguous and don’t mutate. “Mutation” means how they’re defined can unexpectedly migrate from the version you’ve used to one the buyer uses. Adopting GAAP is best, but know it’s not foolproof: after all, EBITDA itself is not a term recognized as a Generally Accepted Accounting Principle. Say explicitly how corporate overhead allocations, shared-service charges, and purchase accounting will be handled. Most earnout disputes are about which accounting convention applies.

Who Calculates Earnouts and How to Resolve Disputes

After your first earnout period closes, the buyer prepares and presents to you an accounting. You’ve been anticipating it, but it’s disappointing and you disagree with the numbers. So how do you come to an agreement short of involving third parties?     

Most of the time, purchase documents are silent on the subject because you focused on the metrics instead and the buyer didn’t mind leaving things vague. To avoid this invitation to litigation, obtain in writing before closing:

• Audit rights and access to the books, records, and people behind the calculations.
• Agreement that for a specified time after you receive a statement, you may dispute it, say 30 to 45 days.
• Each statement will fully describe the metrics in use, their values, and the related amounts owed.
• Mutual commitment to use in the event of a dispute a named accountant whose determination binds both sides, with fees going to the loser.

Limit the Buyer’s Operating Control

Separately, get agreement on how the business will be run while your earnout is underway. Examples: prohibitions on firing key employees, commitments to maintain sales and R&D spending, restrictions on discontinuing product lines, and a requirement that the business be operated as a separate reporting unit so the numbers stay measurable.

Changes of Control

What happens if the buyer is sold or resells your company while your earnout is active? Sellers almost always prefer an “acceleration” of all future earnout payments so that they become due upon the close date of the control transaction. Otherwise, the conditions that follow the change could make your carefully negotiated earnout terms wholly irrelevant.

How your earnout may be valued under such circumstances is highly variable, with details beyond the scope of this article. Suffice it to say that often what’s most advantageous to the seller is an arrangement whereby buyer and seller agree in advance to hire a named expert who present values the remaining payment stream. In such circumstances, the more that stream is backloaded, the more difficult the present value calculation becomes. See the “Avoid Cliffs” section below.

Resist Caps

Sellers don’t ask buyers to keep paying them for value created after the earnout ends. So why would they agree to a ceiling when they outperform during it?

That said, know what you’re up against. Buyers cap earnouts because their lenders and investment committees approved a maximum price, and that ceiling is often immovable. If it won’t move, trade it for a lower threshold, a longer period, earlier payments, or a rate that accelerates once you pass certain targets.

Avoid Cliffs

Don’t let payments bunch up at the end of the term. Create milestones that pay along the way; it reduces the risk of collecting nothing and keeps morale up. And avoid all-or-nothing triggers. Use sliding or tiered payments instead: $500,000 if revenue grows 10%, $750,000 if it grows 20%.

Before You Sign

• Understand the tax treatment. Earnout proceeds may be taxed as ordinary income or as capital gains, and the dividing line usually comes down to whether payment depends on your continued employment. If it does, the IRS is likely to treat it as compensation: deductible to the buyer but ordinary income plus payroll taxes to you. But if instead it turns purely on business performance regardless of who’s running things, it’s more likely considered part of the purchase price and treated as capital gain. Buyers prefer the first outcome. You want the second. Bring in a tax advisor during negotiation, not after.
• Confirm you want the job. The earnout period is a commitment to stay. If you plan to leave within a year of closing, a strategic buyer may suit you better — but be careful about accepting volatile targets you won’t be around to influence. 
• Don’t bank on it. With roughly 45% of earnouts paying nothing and the average paying about 21 cents on the dollar, plan as though yours may never arrive. If the deal only works for you at full payout, it doesn’t work for you.
• Hire well. Seasoned M&A and tax advisors, and their financial modeling, are what stand between a well-structured earnout and an expensive lesson.

Frequently Asked Questions

• How common are earnouts? Less common than most sellers assume, and currently declining. Earnouts appeared in 18% of private-target deals in 2025, down from 26% in 2023 and the lowest level since 2006. Other surveys report 13% to 22%. Life sciences is the major exception, where earnouts are routine.
• What percentage of the purchase price is a typical earnout? Outside life sciences, roughly 15% to 20% of total deal value, assuming full payout. In life sciences the share is far higher — often a majority of total potential consideration because so much value depends on clinical and regulatory milestones.
• Do earnouts usually get paid? Only partially. About 55% of sellers collect something, meaning roughly 45% collect nothing. Across all earnout deals, only about 21 cents of every potential dollar is actually paid. Of those who collect, about half reach the maximum.
• How long do earnouts last? The median is 24 months. The practical range runs from six months to five years, with one to three years most typical. Duration is usually limited by how long the seller’s team is willing to stay.
• Can a buyer avoid paying an earnout? More easily than sellers expect. The buyer prepares the calculation, may be able to offset indemnification claims against it, and is in the default position of controlling operating decisions that could drive earnout metrics. You as seller can at least negotiate the management of each of those routes, but only in the purchase agreement. Once you sign that, those terms are either settled or left unaddressed, something that also typically favors the buyer.
• What’s the difference between an earnout and a holdback? A holdback is money you’ve already earned that the buyer retains temporarily as security; you get it unless something goes wrong. An earnout is money you haven’t earned yet and will receive only if specified targets are met.
  

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Sources

ABA 2025 Private Target M&A Deal Points Study — The benchmark survey of negotiated terms in U.S. private company acquisitions, published December 2025. Source of the 26%-to-18% decline in earnout use and the rise of representations and warranties insurance.
The New Normal in Private M&A: Key Takeaways from the 2025 ABA Deal Points Study — A readable summary of the 2025 study, including the historical arc of earnout prevalence back to 2006.
SRS Acquiom: Managing M&A Earnouts — Source of the payout data: about 21 cents on the dollar, contested at least 28% of the time, and the share of deals renegotiated to avoid litigation.
SRS Acquiom: Earnout and Milestone Trends — Prevalence and structure trends drawn from SRS Acquiom’s proprietary deal database, which skews toward venture-backed and lower middle market transactions.
SRS Acquiom: 2025 M&A Claims Insights — Payout rates by deal size, plus data on how earnout outcomes differ in lower middle market transactions.
SRS Acquiom: Key Trends from the 2025 Deal Terms Study — Source of the point that fewer earnouts reflect returning seller leverage, as sellers push for higher upfront values.
Earnouts in M&A: Risk Allocation, Incentives, and Post-Closing Disputes — Charles River Associates, March 2026. Source of the deal-size breakdown showing earnouts represent a far larger share of price on small transactions than on large ones.
Bain & Company: How Companies Got So Good at M&A — Bain’s own account of deal success rates, including why it now argues the long-cited 70% failure rate no longer describes experienced acquirers.
The Art and Science of Earn-Outs in M&A — Harvard Law School Forum on Corporate Governance. A more technical treatment of metric design, efforts standards, and buyer covenants for readers who want to go deeper.
Venable LLP on earnout taxation — Detailed guidance on when earnout proceeds are treated as purchase price versus compensation.
Kuhn Capital related reading: Metrics That Sell a Tech Company | Which Investor Fits Your Company’s Stage? | Looking Forward to Exit? Not So Fast