How Earnouts Work in Business Sales for Sellers

A buyer says they can meet your asking price, but only if part of it is paid after closing. That proposal may be an earnout. Understanding how earnouts work in business sales is essential before you accept one, because an earnout can bridge a legitimate valuation gap or quietly shift meaningful risk back to you after you sell.

For owners of established businesses, an earnout is not simply a delayed payment. It’s a negotiated promise tied to future performance, buyer conduct, and contract language. The right structure can preserve value when a buyer believes in the company’s future but needs proof. The wrong structure can leave you working hard for proceeds you no longer control.

What an Earnout Is and Why Buyers Request One

An earnout is a portion of the purchase price paid after closing if the business reaches agreed performance targets. The buyer pays a fixed amount at closing, then pays additional consideration over a defined period, often one to three years, if the company hits benchmarks such as revenue, EBITDA, gross profit, customer retention, or unit growth.

Suppose a company is being sold for $8 million. The buyer may offer $6.5 million at closing and another $1.5 million if the business generates at least $2 million in EBITDA during the next two years. That doesn’t necessarily mean the buyer is trying to reduce the price. They may be uncertain whether recent growth is sustainable, whether a major customer will stay, or how the company performs through a leadership transition.

This shows up most often when I’m working a deal with a roll-up or private equity buyer. The offer usually comes in stages: an indication of interest first, then a letter of intent, and the LOI is where you first see the real mix of cash down versus what I call “golden handcuffs,” the earnout tied to key people staying on and hitting milestones. Knowing that mix early matters, because it changes how you evaluate the whole offer, not just the headline number.

Earnouts are common when the seller’s historical results and the buyer’s forecast don’t fully align. They also show up in businesses with rapid growth, recurring contracts, a concentrated customer base, founder-driven relationships, or a recent turnaround without a long track record yet.

For the seller, the benefit is clear: an earnout can help justify a higher total valuation than the buyer would pay entirely in cash at closing. The trade-off is just as clear: you have to earn a piece of your sale price after ownership has already changed hands.

How Earnouts Work in Business Sales: The Core Terms

Every earnout should answer three questions with precision: What must happen, how will it be measured, and what is paid when the target is met?

The performance metric is the foundation. Revenue is easy to understand but can be misleading if the buyer grows sales by discounting prices or adding unprofitable work. EBITDA may better reflect economic performance, but it’s more vulnerable to changes in accounting, overhead allocation, staffing, and discretionary decisions made by the new owner.

Gross profit, recurring revenue, customer retention, or revenue from named accounts can sometimes give a cleaner measure. If a buyer is concerned about three customers representing 40% of revenue, an earnout tied to the retention and continued spending of those specific accounts can directly address the risk both sides are actually trying to solve.

The agreement must also establish the measurement period and payment formula. A threshold structure pays nothing unless a target is reached. A tiered structure pays increasing amounts as performance improves. A proportional structure pays a percentage of the earnout based on actual results. I usually steer clients toward proportional or tiered formulas, since missing a target by a small margin shouldn’t erase a substantial payment entirely.

Timing matters as much as the formula. The agreement should state when financial results are prepared, how long the buyer has to review them, when a seller may object, and when payment is due.

How Earnout Payments Are Taxed

Earnout proceeds are generally treated as contingent payment sales for tax purposes, which is a different mechanism than a straightforward installment note. According to the IRS’s guidance on installment sales, when the total selling price isn’t fixed at closing, as is the case with most earnouts, specific rules determine how basis is recovered and when gain is recognized across the payment period. This is exactly the kind of detail that should get modeled with a tax advisor before you agree to the structure, not after the earnout terms are already locked into the purchase agreement.

The Central Risk: Control Changes at Closing

The most difficult feature of an earnout is straightforward: once the deal closes, the buyer owns the business. Yet your deferred purchase price may depend on decisions the buyer makes.

A buyer could change pricing, reduce sales staffing, combine your company with another operation, redirect customers, add corporate overhead, or prioritize short-term integration over the metric that drives your earnout. None of those decisions have to be improper to damage your payment. According to Harvard Business Review’s research on earnout structuring, earnouts are consistently one of the more litigated post-closing deal terms precisely because buyer and seller incentives diverge the moment ownership actually changes hands.

That’s why broad language such as “the business will be operated in the ordinary course” is rarely enough by itself. It may help, but it doesn’t tell the parties how expenses will be allocated, whether the business can be merged into an affiliate, or whether the buyer may discontinue a product line that supports the target.

The issue is especially significant for owners selling businesses valued between $1 million and $30 million. At this level, the buyer may be a strategic acquirer with multiple operating units, a private equity-backed platform, or an individual buyer who needs flexibility. Each situation requires a different level of protection and a realistic understanding of what control you’ll retain.

Terms That Protect the Seller’s Earnout

A well-negotiated earnout doesn’t try to run the buyer’s company from the sidelines. It identifies the specific actions that could unfairly undermine the agreed metric and addresses them directly.

Consider protections around accounting consistency. If EBITDA determines the payment, the agreement should define which accounting principles apply, how revenue is recognized, and how shared expenses or corporate charges are treated. Ideally, the calculation follows the company’s historical practices unless both sides agree otherwise.

Sellers should also address revenue diversion. If the buyer moves a customer, sales team, contract, or product opportunity to an affiliated company, the related revenue may need to count toward the earnout as though it remained in the acquired business.

Access to information is another practical safeguard. You should receive regular financial statements and sufficient backup to verify the calculation, with a defined review period and a clear dispute process, often involving an independent accounting firm if the parties can’t resolve a disagreement.

Depending on the deal, sellers may also negotiate covenants covering staffing levels, sales and marketing support, key customer relationships, or the buyer’s ability to materially change the business before the earnout period ends. These provisions should be targeted. Overreaching restrictions can make a buyer unwilling to proceed or can create disputes over ordinary business decisions.

Finally, pay attention to credit risk. An earnout is only as reliable as the buyer’s ability and willingness to pay. If a meaningful portion of your proceeds is deferred, understand who’s obligated to pay, whether a parent company guarantees the obligation, and what remedies apply if payment is late.

Your Role After the Sale Matters

Many earnouts are paired with an employment or consulting agreement. The buyer may want the seller to remain involved for 12 to 24 months to transition customer relationships, lead a team, or protect institutional knowledge.

That can work well when expectations are clear. But it creates another layer of risk: do you lose the earnout if you leave? What happens if the buyer terminates you without cause, materially changes your duties, or fails to provide the resources needed to hit the target?

I always tell my clients we need to know very early on what role they’ll actually play after closing, and what the milestones tied to that role look like, because that’s what determines whether the earnout is realistic or just a number on paper. A seller should resist an arrangement where the buyer can end the working relationship and automatically eliminate the earnout.

When an Earnout Makes Sense

An earnout can be a constructive solution when it’s used to resolve a specific, measurable uncertainty. A company that has just won several large contracts, entered a new market, or demonstrated unusual growth may be worth more than its trailing financial statements alone suggest.

It’s less attractive when it fills a basic financing gap. If the buyer can’t fund the agreed price and is using an earnout as a substitute for cash, the seller should ask whether the buyer has the resources, experience, and conviction to complete the transaction. I also pay close attention to a buyer’s track record with prior acquisitions here. I don’t like to see short-term flippers looking to buy low and sell high fast; that pattern tells you a lot about whether they’ll actually manage the business in a way that lets your earnout pay out.

The best earnouts tend to have a short duration, simple metrics, transparent calculations, and a payment formula that avoids an all-or-nothing result.

Negotiate the Whole Deal, Not Just the Headline Price

A high purchase price can be misleading if a large percentage depends on uncertain future events. When comparing offers, separate the cash paid at closing, seller financing, contingent earnout payments, rollover equity, working capital adjustments, and indemnity exposure. Then assess the probability and risk of each component.

A lower headline offer with more cash at closing and fewer contingencies can be stronger than a higher offer with an aggressive earnout. Your personal goals matter here. An owner planning retirement may value certainty differently than an owner who wants to stay involved and believes deeply in the company’s next stage of growth.

Before you agree to deferred proceeds, ask whether the target is truly within your influence after closing, whether the calculation can be verified, and whether the payment is worth the risk you’re accepting. A carefully structured earnout can recognize your business’s future potential. A vague one can turn part of your exit into a problem you thought you’d already sold.

Frequently Asked Questions

Are Earnouts Common in Small Business Sales?

Earnouts show up more often in businesses with rapid recent growth, a concentrated customer base, or a buyer who’s uncertain whether current performance will hold, particularly with roll-up and private equity buyers. They’re less common in straightforward, stable Main Street deals.

What Happens if a Buyer Doesn’t Hit the Earnout Target?

It depends entirely on the payment formula. A threshold structure pays nothing if the target is missed, even by a small margin, while tiered or proportional structures pay a partial amount based on actual results, which is generally the fairer approach for sellers.

Can a Seller Refuse an Earnout and Ask for All Cash?

Yes, and it’s a reasonable position, especially if you need certainty or don’t want ongoing exposure to a business you no longer control. The trade-off is that an all-cash structure may come with a lower total purchase price than one that includes an earnout.