Earnouts Explained

An earnout is a deal structure where part of the purchase price isn’t paid at closing. It’s paid later, and only if the business hits specific performance targets after the sale. Earnouts show up when a buyer and seller can’t fully agree on price, when there’s risk around key customers or contracts carrying over to the new owner, or when a buyer wants the seller to keep real, ongoing skin in the game through a transition period. Here’s how they’re built, where they tend to break down, and how to weigh an offer that includes one.

Why earnouts exist

Buyers and sellers often see value differently, especially when future growth is uncertain. The seller has lived with the business for years and believes in the forecast. The buyer is relying on someone else’s projections and answers to its own investors or lenders if they don’t come true.

An earnout bridges that gap. Instead of arguing over whose projection is right, the parties agree to a lower guaranteed price at closing, with additional payments tied to whether the seller’s projections actually play out. If the business performs, the seller gets paid for it. If it doesn’t, the buyer hasn’t overpaid.

They’re especially common when:

• +The business has a strong growth story that hasn’t fully played out yet
• +A key customer relationship or contract is new, unproven, or coming up for renewal
• +The seller is staying on for a transition period and the buyer wants continued alignment
• +There’s a meaningful gap between what the buyer is willing to pay upfront and what the seller believes the business is worth
• +Part of the value depends on a future event, like a regulatory approval or product launch, that hasn’t happened yet

How an earnout is built

Every earnout comes down to a few decisions: what gets measured, over what period, what level of performance triggers a payment, and how that payment is made. Each one shifts risk between the buyer and the seller.

What gets measured

Payments are tied to a specific, measurable metric. The usual options include:

• +Revenue: simple to measure and harder for the buyer’s cost decisions to affect, though buyers worry the seller will chase unprofitable sales.
• +Gross profit: a middle ground that captures pricing and direct costs without pulling in overhead.
• +EBITDA or another earnings measure: closest to how the business was likely valued, but the most exposed to accounting choices, cost allocations, and integration decisions after closing.
• +Customer or contract milestones: keeping a named customer, renewing a key contract, or hitting a volume commitment.
• +Regulatory or product milestones: an approval, a launch, or another event that much of the value depends on.

The further down the income statement a metric sits, the more the buyer’s decisions after closing can move it. Talk through that tradeoff during negotiations, not after the first earnout statement shows up.

The measurement period

Earnout periods usually run somewhere between one and three years after closing, with two years being a common middle ground. Some measure each year on its own, and others measure performance over the whole period. Annual tests get the seller paid sooner, but one bad year can cost that year’s payment for good. Cumulative tests smooth out timing swings but push everything to the end. A catch-up provision splits the difference, so a missed payment can still be earned if a later period makes up the shortfall.

Thresholds, targets, and caps

Most earnouts spell out three levels:

• +Threshold: the minimum performance needed before any earnout is paid, sometimes called the floor. Below it, the payment is zero.
• +Target: the level of performance that earns the full scheduled payment.
• +Cap: the most the seller can receive, no matter how well the business does.

Between the threshold and the target, the agreement either pays nothing until the target is hit (all-or-nothing) or pays a portion on a sliding scale. With an all-or-nothing test, missing the target by a dollar costs the full payment, which is exactly the kind of result that ends up in a dispute.

How and when it gets paid

After each measurement period, the buyer typically prepares a statement showing the results and the amount owed. The agreement should give the seller a set window to review it, access to the books behind it, and a way to object. Payment usually follows within a set number of days once the amount is final.

Two other things affect whether the seller actually gets paid. Many purchase agreements let the buyer deduct indemnification claims against the seller from earnout payments, so a dispute over something else in the deal can hold up the earnout. Sellers often push to limit those deductions to claims that have been finally resolved. And since an earnout is usually an unsecured promise to pay later, the buyer’s financial strength matters, along with any lender terms that could limit or delay payment.

Where earnouts get complicated

Who controls the business during the earnout period matters enormously. If the buyer controls operations after closing but the seller’s earnout depends on performance during that period, there’s an inherent tension. Decisions the buyer makes for legitimate business reasons, like cutting a product line, changing pricing, or integrating systems, can directly affect whether the seller gets paid. Well-drafted earnout provisions address this directly, sometimes by restricting certain buyer actions during the earnout period or defining how shared costs and resources get allocated.

Sellers sometimes ask the buyer to run the business to maximize the earnout. Buyers rarely agree, since it would tie their hands for years. A narrower set of commitments is more realistic, such as keeping the business as a separate unit, supporting it with reasonable sales and marketing resources, and not taking actions meant to reduce the earnout.

Measuring the metric can become a dispute magnet. If EBITDA is the target, whose accounting policies apply? How are shared corporate overhead costs allocated if the business is absorbed into a larger buyer? Are one-time integration costs excluded? These questions need clear answers in the purchase agreement itself, not left to interpretation after the fact. Many of the same adjustments that come up in a quality of earnings review show up again here.

A sample calculation attached to the agreement, built from the business’s historical numbers, shows both sides exactly how the metric is supposed to work. Earnouts have a reputation for ending up in disputes, so the agreement should also spell out who settles a disagreement and how quickly. Calculation disputes often go to an independent accounting firm, but whether that firm can also rule on how the buyer ran the business depends on the clause’s exact wording.

A sale or restructuring of the business can change everything. If the buyer sells the business, merges it into another company, or sells off a key piece during the earnout period, the seller’s ability to hit the targets can disappear overnight. Sellers often negotiate acceleration, where all or a set portion of the earnout becomes payable if that happens.

Tying the earnout to employment adds another layer. If the seller is staying on, the earnout and the employment agreement need to work together. If the seller is let go without cause, or the role changes in a way that makes the targets harder to hit, what happens to the earnout? The documents should answer that.

Weighing an offer that includes an earnout

An earnout isn’t the same as cash at closing. It’s inherently less certain. A seller comparing two offers, one all-cash and one with a lower upfront amount plus a substantial earnout, shouldn’t treat them as equal just because the totals match. The earnout portion is only worth what the seller can realistically expect to collect, which depends on how achievable the targets are, how long the money takes to arrive, how much influence the seller has over the results, and the buyer’s ability and willingness to pay.

A simple example

Questions to ask before agreeing to an earnout

• +What exactly is being measured, and under which accounting policies?
• +Is the target realistic based on the business’s actual track record, not just the forecast?
• +Who makes the operating decisions that drive the metric, and what limits apply to them?
• +Can the buyer deduct indemnification claims from earnout payments?
• +What happens if the buyer sells or restructures the business during the earnout period?
• +What happens to the earnout if the seller’s employment ends?
• +Who resolves disputes, and how quickly?

For buyers, the same questions apply in reverse. An earnout protects against overpaying, but it also means years of tracking and reporting results, built-in friction with a seller who may still be running the business, and limits that can slow integration. Sometimes a lower price, a seller note, or rollover equity solves the same problem with less friction.

This article is a general overview for educational purposes only and is not tax, legal, accounting, or investment advice. Every deal is different, so talk with your advisors before making decisions. If you don’t have the right team in place, reach out and we can help you build one.

The bottom line

Earnouts can be a genuinely useful tool for bridging a valuation gap and aligning incentives during a transition period, but they require careful drafting to avoid becoming a source of conflict later. Getting the metric definition, the measurement period, the control provisions, and the dispute resolution mechanism right upfront is far cheaper than litigating a disagreement two years after closing. And when comparing offers, remember an earnout is a delayed, contingent payment, not cash in hand.

ProDelta Advisors helps buyers and sellers structure earnout provisions and understand what an earnout is actually worth as part of a broader transaction.