According to SRS Acquiom's 2024 M&A Deal Terms Study, which analyzed more than 2,100 private-target transactions, 33% of those deals included an earnout as part of the purchase price. That means one in three business owners who signed a purchase agreement did not receive their full price at closing. They received a promise.
Understanding what that promise is worth before you sign it is the difference between a clean exit and a three-year dispute with your new PE owner.
This is what earnout structures look like in lower-middle-market private equity deals, what the data says about actual payouts, and what protections you need in writing before you close.
What an earnout is and why PE buyers use it
An earnout is a contingent payment mechanism. You sell your business at a headline price. A portion of that price is withheld. You earn it back by hitting defined performance targets after the deal closes.
PE buyers use earnouts for one primary reason: they do not fully believe your forward projections. You are projecting 20% revenue growth next year. The buyer is not convinced. Rather than kill the deal, they structure a portion of the purchase price as contingent on whether that growth actually happens.
In the lower middle market, buyers also use earnouts when a business has high owner dependence, a customer concentration above 20%, or fewer than three years of audited financials. Each of those conditions creates binary risk. An earnout shifts that risk back to the seller.
From the seller's perspective, an earnout can feel like a fair compromise. If your projections are accurate, you get paid. In practice, the data tells a different story.
What the data actually shows about earnout payouts
SRS Acquiom has tracked earnout outcomes across thousands of transactions. The headline finding is hard to soften: earnouts pay out approximately 21 cents on the dollar across all non-life-sciences deals. Less than a quarter of what was promised is actually received.
For deals where any payout occurs, the number improves. Sellers in that group recover about half the maximum earnout value. But the larger group, the deals where earnouts pay out zero, drags the average down sharply.
Earnout duration data adds context. The median earnout period is 24 months. Eighty-one percent of earnouts run longer than one year. Advisors broadly agree that anything beyond 36 months is seller-unfavorable because external risk compounds over time. The business can miss targets for reasons entirely outside the seller's control: a recession, a supply chain disruption, a buyer decision to cut the sales team to improve margins.
The typical earnout in a lower-middle-market deal represents roughly 31% of the closing payment, per SRS Acquiom. That is a material number. If your headline deal is $10 million, the earnout portion could be $3 million you may never see.
The three earnout trigger structures you will face
SRS Acquiom data shows that revenue is the trigger metric in 62% of earnout deals. EBITDA accounts for 22%. Many deals use multiple metrics.
Revenue-based triggers favor sellers. Revenue is harder for a buyer to manipulate after closing. EBITDA-based triggers favor buyers because EBITDA is directly affected by decisions the buyer makes post-acquisition, including management fees, overhead allocations, and capital expenditure timing.
The mechanics of how the threshold is measured also matters. Most PE buyers prefer a binary structure: you hit the number, you get the earnout payment. Sellers should push for a proportional or tiered structure where partial performance earns partial payment. A deal that pays nothing at 94% of target and everything at 100% is a bad deal for the seller.
The risks most sellers miss
EOD training teaches you to look past the obvious trigger. The real threat is often the secondary device. In earnout negotiations, the secondary device is the operating clause.
PE buyers routinely charge portfolio companies annual management fees. These fees run $250,000 to $1 million or more depending on deal size. If your earnout is EBITDA-based, every dollar of management fee reduces your earnout-eligible earnings dollar for dollar. The buyer profits twice: once from the management fee and once from the earnout they do not have to pay.
Overhead allocation is the same mechanism with a different name. A PE firm may reallocate corporate legal costs, IT infrastructure, insurance premiums, and HR expenses onto your former company after closing. Each allocation compresses EBITDA and reduces what you earn.
The SRS Acquiom data on this point is worth reading carefully: 70% of earnout deals allow buyers to offset indemnity claims against earnout payments. This means if the buyer brings an indemnification claim against you after closing, they can withhold earnout payments while the dispute is pending. Three percent of deals required buyers to operate the business consistently with prior practices. Three percent required buyers to maximize earnout achievement.
That gap between 70% and 3% is where sellers get hurt.
What a well-structured earnout looks like
The table below maps the critical deal points. Review quality of earnings due diligence before you get to this stage so you understand your own financials before a buyer does.
| Structural Element | Seller-Protective Version | Seller-Unfavorable Version |
|---|---|---|
| Metric | Revenue or gross profit | EBITDA with no cost controls |
| Threshold structure | Tiered proportional payouts | Binary all-or-nothing |
| Duration | 12 to 24 months | 36 months or longer |
| Dispute resolution | Named independent accounting firm | Left to litigation |
| Seller oversight | Audit rights with quarterly reporting | No information rights |
| Operational protections | Express covenants on budgets and headcount | No operating restrictions on buyer |
| Acceleration clause | Full payout triggered by change of control | Silent on change of control |
| Indemnity offset | Expressly prohibited | Buyer can withhold payments for claims |
The acceleration clause deserves particular attention. If a PE buyer acquires your business and then sells it to a larger buyer within the earnout period, you want full payment triggered at that moment. Without an acceleration clause, the new owner inherits the earnout obligation but has no incentive to help you hit the targets. Deals get restructured. Focus shifts. The earnout payment evaporates inside a larger integration.
The PE buyer side of this equation
Not all PE buyers structure earnouts to exploit them. In the lower middle market, where deal flow is relationship-driven and reputation matters, buyers who routinely manipulate earnouts lose deal flow. Business brokers, M&A advisors, and the seller community talk.
The better PE buyers use earnouts specifically because they believe in the seller's projections and want the seller to remain engaged during the transition period. When an earnout is structured properly with operational protections, audit rights, and a revenue metric, it can function as a legitimate bridge between seller valuation expectations and buyer risk tolerance.
The key question to ask any PE buyer during due diligence: show me the earnout payment history on your last five acquisitions. A buyer who cannot or will not answer that question is telling you something important.
Per the TKO Miller M&A advisory group, buyers who invest in a business post-acquisition may actually improve earnout achievement because they bring resources the seller lacked. Infrastructure, distribution, hiring capacity, and capital all expand what the business can produce. The earnout risk is not uniformly negative. It depends on the buyer's operating thesis.
Delaware courts and earnout enforcement trends
Legal enforcement of earnout obligations is improving for sellers. In six of seven major earnout decisions in Delaware courts in the past two years, courts found in favor of the seller, reflecting growing judicial skepticism of buyer manipulation post-close. That is a meaningful shift from earlier case law.
What this means practically: if you have a well-drafted earnout with specific operational protections and a buyer fails to meet those obligations, your legal remedies are stronger than they were five years ago. The enforcement trend is moving in sellers' favor.
The counterweight is cost. M&A earnout disputes cost $1 million to $5 million to litigate. Most sellers in the lower middle market cannot absorb that cost or the management distraction that comes with it. Legal recourse is a last resort, not a substitute for good drafting upfront.
How to evaluate whether to accept an earnout
Before you accept any earnout as part of a PE deal, answer four questions.
First: what percentage of the total purchase price is deferred? If it is above 25%, you are taking on material risk that you may not get paid. Push to reduce that percentage before negotiating the mechanics.
Second: what is the metric, and who controls it? Revenue you mostly control. EBITDA after PE ownership changes, you do not. If the metric is EBITDA, demand hard cost controls.
Third: what are the operational constraints on the buyer? If there are none, you have no protection. Walk away or demand them.
Fourth: what does the buyer's earnout payment history look like? If they will not show you, that is an answer.
The Seyfarth 2024-2025 Middle Market M&A Survey found that 13% of middle market deals included earnouts. That percentage is climbing as valuation gaps between buyers and sellers persist. More sellers in 2026 will face this decision than did in 2020 or 2021.
Preparation is the only defense. Know what you are signing before you sign it. If your buyer is a veteran-founded PE firm that has skin in the game alongside you, that changes the dynamic. If it is a financial buyer whose carry depends on suppressing your earnout payment, you need every clause your attorney can draft.
The earnout conversation starts at the term sheet, not the purchase agreement. By the time you get to the definitive agreement, the fundamental structure is already set.
Jonathan Bates is a partner at Patriot Growth Capital and a U.S. Navy EOD officer veteran. PGC acquires and mentors veteran-led and veteran-founded businesses. 5% of PGC revenue is donated to the veteran community. This article is for informational purposes only and does not constitute legal or financial advice. Consult a qualified M&A attorney before entering any acquisition agreement.
Frequently Asked Questions
What percentage of private-target deals include an earnout, and how much do sellers typically collect?
According to SRS Acquiom's 2024 M&A Deal Terms Study of more than 2,100 transactions, 33% of deals included an earnout. Across all non-life-sciences deals, earnouts pay out approximately 21 cents on the dollar. For deals where any payout occurs, sellers recover about half the maximum earnout value.
Why are EBITDA-based earnout triggers riskier for sellers than revenue-based triggers?
EBITDA is directly affected by decisions the buyer makes post-acquisition, including management fees, overhead allocations, and capital expenditure timing. Revenue is harder for a buyer to manipulate after closing. PE buyers can charge portfolio companies annual management fees that reduce EBITDA dollar for dollar and shrink what a seller earns under an EBITDA-based earnout.
What is an acceleration clause and why does it matter in an earnout?
An acceleration clause triggers full earnout payment if the buyer sells the business to a larger buyer during the earnout period. Without one, the new owner inherits the earnout obligation but has no incentive to help the seller hit the targets, and the payment can disappear inside a larger integration. Sellers should push for this clause in every earnout negotiation.
How have Delaware courts recently ruled on earnout disputes?
In six of seven major earnout decisions in Delaware courts in the past two years, courts found in favor of the seller, reflecting growing judicial skepticism of buyer manipulation post-close. That is a meaningful shift from earlier case law, giving sellers stronger legal remedies when buyers fail to meet specific operational obligations. The counterweight is that M&A earnout disputes cost one million to five million dollars to litigate, making good drafting more important than legal recourse.
