Earnout Provision

An earnout provision (or earn-out) is a contractual clause in an acquisition agreement that ties a portion of the purchase price to the acquired company’s future performance. Rather than paying a fixed price at closing, the buyer agrees to pay additional cash (or stock) if the business hits certain targets—revenue, EBITDA, customer retention, or profitability milestones—in the years following the deal. Earnouts address buyer-seller disagreement on valuation by deferring part of the price until uncertainty about the business’s future resolves.

Why earnouts emerge in M&A

Buyer and seller often disagree on what a business is worth. A private company founder might believe the company will grow 30% annually; the buyer, more conservative, projects 15% growth. Rather than walk away, they can structure the price with a base payment (say, $50 million) plus an earnout: $10 million if the company hits $30 million revenue in year two, and another $10 million if it hits $40 million in year three. If the business performs strongly, the seller gets the full price; if it underperforms, the seller bears part of the downside. This structure aligns incentives and resolves valuation deadlock by letting future performance determine the actual price paid.

Measurement disputes and earnout mechanics

Earnouts are typically measured against standardized accounting metrics like revenue (top-line sales) or EBITDA (earnings before interest, taxes, depreciation, amortization). The acquisition agreement specifies exactly how these metrics are calculated: Do intercompany transactions count toward revenue? What depreciation methodology is used? What happens if the company changes accounting policies? These details matter enormously because a small change in the calculation can swing the earnout by millions. Disputes are common; a buyer might argue that unusually high post-acquisition expenses reduced EBITDA, while the seller contends those expenses were necessary for growth and shouldn’t count against the earnout. Earnout disagreements are a leading source of post-closing M&A friction.

Incentive alignment and unintended consequences

From the buyer’s perspective, an earnout is attractive because it reduces upfront cash and ties additional payment to performance, aligning seller incentives with the company’s success post-closing. The seller, motivated by the earnout, may invest in customer relationships, product development, or staff retention to hit targets. However, earnouts can also create perverse incentives. A seller might prioritize short-term revenue growth (hitting the year-one earnout target) over long-term profitability, loading the company with risky contracts or low-margin sales. The buyer, wanting to preserve cash, might underfund the business post-closing, handicapping growth. Successful earnout dynamics require ongoing collaboration and trust—not always present after a change-of-control.

Seller economics and tax considerations

From a tax perspective, earnouts are contingent consideration that must be included in the purchase price for calculating gain. If a seller receives $50 million in cash at closing and $10 million in earnout in year two, the full $60 million is the sale price for capital gains purposes. The year-two earnout is ordinary income (not capital gain) to most sellers, subject to higher tax rates. This tax asymmetry can offset the benefit of deferring payment. For sellers, an earnout is also riskier—if the buyer mismanages the business post-closing, the earnout may not be achieved through no fault of the seller. Some sellers prefer a lower all-cash price to an uncertain earnout.

Earnout structures and frequency in different sectors

Earnouts are especially common in acquisitions of private businesses, startups, or strategic bolt-ons, where uncertainty about future performance is high. Tech and SaaS acquisitions frequently use earnouts because revenue trajectories are volatile. Large acquisitions of mature, stable businesses are less likely to use earnouts; the buyer is confident in valuation and the seller wants certainty. Earnouts are rarely used when one party has far more bargaining power—in a fire-sale scenario, the buyer imposes its valuation with no earnout; in a hot auction, buyers compete with all-cash bids, leaving no room for earnouts. The prevalence of earnouts thus signals a balanced deal with genuine valuation uncertainty.