Earnout
A portion of purchase price paid to the seller after closing, contingent on the business achieving specific performance targets — used to bridge valuation gaps and share post-close risk.
Full Definition
Earnouts defer a portion of the purchase price (typically 10–30% in SMB deals, though occasionally higher) contingent on the business achieving specified targets in a defined post-close period. Common targets: revenue, EBITDA, gross profit, customer retention, specific contract wins, or integration milestones. Earnout periods typically run 12–36 months. Payment is usually in cash; occasionally in buyer equity.
How it actually works: Earnouts emerge when buyer and seller can't agree on value. Seller believes the projection; buyer doesn't. Rather than split the difference at closing, the buyer pays for proven performance and the seller gets upside if their projection comes true. In theory, elegant; in practice, earnouts are among the most-litigated provisions in M&A because the formula is usually a revenue or EBITDA number that the buyer controls for 1–3 years after closing — and the buyer has every incentive to manage the business in ways that reduce the earnout (investments, acquisitions, accounting changes, corporate overhead allocations).
The architecture matters enormously. A revenue-based earnout is cleaner but lets the buyer "buy" the earnout through unprofitable growth. An EBITDA earnout is closer to the right economic measure but gives the buyer accounting discretion. A "thresholds and tiers" structure (e.g., full earnout at Year 1 EBITDA of $5M, zero at $4M, sliding scale between) is more common than binary earnouts. Well-drafted earnouts include operating covenants (seller protections about how the business will be run), accounting methodologies (consistency with historicals), and dispute resolution (independent accountant, specific process).
Seller vs. Buyer Perspective
Assume you won't fully earn the earnout. Studies consistently show earnouts pay out at 40–70% of their maximum value on average. Negotiate the terms as if you'll sue to collect: specific operating covenants (buyer won't materially change the business, won't load corporate overhead, will use commercially reasonable efforts), consistent accounting with historical methods, a well-defined formula, short periods (12–18 months better than 36), a dispute mechanism that doesn't bankrupt you, and acceleration on change of control or if the buyer terminates key personnel. Better yet: push to minimize the earnout. If the buyer needs an earnout to justify the price, you might be better off accepting a lower price with no earnout. Cash today beats promised cash tomorrow every time.
Earnouts are powerful risk-sharing tools but they're also litigation magnets. Design for clarity: exact financial definitions, no ambiguity about consolidation or pro-formas, no discretion in calculations. Don't promise more protection than you need — "commercially reasonable efforts" is a softer standard than "best efforts," and you want the softer one. Plan operations with the earnout in mind: aggressive integration early can kill the earnout and create legal exposure. Most earnout disputes are about buyer operational changes the seller didn't anticipate. Also: model the earnout cost scenarios — the earnout can cost you more than closing an extra $2M of price if the business over-performs.
Real-World Example
A $3.5M EBITDA digital marketing agency is sold to a strategic buyer at $17.5M enterprise value. The seller projected 20% EBITDA growth; the buyer underwrote flat. To bridge, the deal closes at $14M upfront with a $5M earnout over 24 months: full $5M payable if cumulative EBITDA over 24 months exceeds $8M (2-year target), sliding scale down to zero at $6.5M. Year 1 goes well — $3.9M EBITDA. Year 2: the buyer restructures to integrate the agency into a broader service line, eliminating a sales team that had been driving 15% of the agency's revenue. Year 2 EBITDA: $3.2M. Cumulative: $7.1M, earnout payout: $1.5M (30% of max). Seller sues, arguing the buyer's restructuring violated the "commercially reasonable efforts" covenant. Two years of litigation, settled for $2.3M total (46% of max). Lesson: operating covenants and good faith standards matter, but the seller still left $2.7M on the table.
Why It Matters & Common Pitfalls
- !Earnouts pay out at partial rates more often than not. Plan accordingly; don't count on full payout for lifestyle planning.
- !Accounting manipulation risk. The buyer can change accounting methods, add corporate overhead, or accelerate investments to reduce the EBITDA base. Draft tight definitions with historical consistency as the default.
- !Change of control. Earnouts often survive an acquisition of the buyer, but the terms matter — acceleration at fair value is the seller-friendly term.
- !Integration risk. Aggressive integration early in the earnout period usually means the earnout fails. Buyers who plan to integrate should offer less earnout, more upfront.
- !Escrow/security. Earnouts are unsecured obligations unless structured otherwise. In smaller deals, consider an earnout escrow.
- !Tax treatment. Earnout payments can be treated as additional purchase price (capital gains) or compensation (ordinary income) depending on structure. The seller's employment status post-close matters.
Frequently Asked Questions
What is an earnout in M&A?↓
What percentage of earnouts actually pay out in full?↓
How are earnouts calculated?↓
Why are earnouts often litigated?↓
Related Terms
Rollover Equity
A transaction structure where the seller retains or acquires ownership in the post-close business — typically 5-25% of the new equity — continuing participation in upside alongside the new owner. Essentially synonymous with "equity rollover."
Escrow
A portion of purchase price held by a neutral third party after closing to secure the seller's indemnification obligations — a buyer's cushion against post-close claims.
Indemnification
The seller's post-close obligation to reimburse the buyer for losses arising from breaches of representations, warranties, or covenants — the primary mechanism that makes the purchase agreement actually protective.
Post-Closing Adjustment
Reconciliation of estimated closing balances (working capital, debt, cash) to final actual amounts, with net difference paid between buyer and seller — typically finalized 60-120 days after closing.
Valuation Gap
The difference between a seller's asking price and a buyer's offered price — typically bridged through contingent consideration mechanisms (earnouts, rollover equity, seller notes) rather than simple price compromise.
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Disclaimer: The information provided on this page is for educational and informational purposes only. It should not be considered financial, legal, or investment advice. Business valuations depend on many factors specific to each situation. Always consult with qualified professionals — including business brokers, CPAs, and M&A attorneys — before making acquisition or sale decisions. LegacyVector is not a licensed broker, financial advisor, or attorney. Data shown may be based on limited samples and may not reflect current market conditions.
LegacyVector Research Team
Reviewed by M&A professionals · Updated April 2026