“I pay you part now and the rest if the company performs.” That is how an earnout sounds at the negotiating table. It sounds reasonable, and sometimes it is. What decides whether it is a bridge or a trap is not the idea: it is the fine print.
Because the earnout shows up late in the negotiation, when the seller is already emotionally committed to the deal, it is worth understanding before it appears. That is the purpose of this article.
What It Actually Is
An earnout is a portion of the sale price that remains conditional on the company's future results, typically measured 1 to 3 years after closing. The buyer pays part at signing and the rest only if the company hits the agreed metrics: revenue, EBITDA, customer retention, or others.
In regional practice it appears frequently for a structural reason: in a market without abundant public comparables, valuation gaps between buyer and seller are wide, and the earnout is the standard instrument for closing them without either side giving in completely.
When It Makes Sense
Three legitimate scenarios:
An honest valuation gap. Buyer and seller hold defensible but different valuations. The earnout allows one side to say: if the company delivers what you claim, you collect what you are asking for.
Value still to be proven. Part of the price rests on recent or future results: a large new contract, a line of business taking off. The buyer does not pay in full for what is not yet history; the earnout gives the seller a route to collect it once it is.
The owner stays through the transition. If the seller will keep operating the business for a period, the earnout aligns their incentive with the performance of the company they still run.
The criterion we apply in practice: an earnout is acceptable when it covers the gap between two defensible valuations. It is dangerous when it covers the gap between evidence and wishful thinking: at that point the seller is financing the buyer's dream.
Where It Turns Into a Trap
Three patterns account for most of the conflicts:
Metrics the buyer can move from inside the operation. After closing, the buyer controls the company. If the earnout metric is an “adjustable” EBITDA, the buyer can depress it with no apparent bad faith: charging corporate costs to the operation, accelerating expenses, deferring revenue. The detail most fought over afterwards is exactly that one: who controls the expenses that affect the metric.
Long periods. Every additional year of earnout is a year in which the seller's wealth depends on decisions they no longer make, in a company they no longer control, under a strategy that can change.
Ambiguous definitions. “Normalized EBITDA”, “segment revenue”, “active customers”: every term not defined with accounting precision in the contract is a potential lawsuit. Badly drafted earnouts do not end in payments: they end in lawyers.
The 3 Rules That Protect the Seller
1. Simple, auditable metrics. Revenue before EBITDA: the higher up the income statement, the less room for manipulation. And auditable by a third party defined in advance.
2. A short period. Ideally no more than 2 years. If the buyer needs 4 years to believe in the company, the problem is not solved with a longer earnout: it is solved with a different price or a different buyer.
3. Operating control agreed in writing. Which decisions the buyer cannot take during the period without adjusting the earnout (selling assets, changing the commercial strategy, charging group costs). This is agreed before closing. After closing there is no negotiation: there is whatever the contract says.
A necessary clarification: the structures described in this article are educational and their implementation varies with the negotiation and the jurisdiction. Drafting the earnout is the work of the transaction lawyer; the role of the M&A advisor is to make sure the economic structure arrives at that table well designed.
The Prior Question Almost Nobody Asks
Before debating the fine print of the earnout, the seller should ask why it appeared. If it is a bridge between reasonable valuations, it is a legitimate tool and the 3 rules make it manageable. If it appeared because the company could not prove its numbers in due diligence, the earnout is the symptom: the real problem was preparation, and that is solved before the process, not in the payment structure.
Our M&A Advisory practice works with business owners across Central America on the design and negotiation of the payment structure, earnout included, before it reaches the lawyer's table.