Not every deal is paid entirely in cash on completion. In many mid market transactions, part of the price is deferred and tied to how the business performs after the sale. This is an earnout, and it is one of the most common, and most misunderstood, features of a deal. Handled well, an earnout can bridge a genuine gap between what you want and what a buyer will pay. Handled badly, it can leave you working for years to earn money you thought you had already sold the business for.

Why earnouts exist

An earnout usually appears when the buyer and seller disagree about the future. You believe the business will keep growing and are pricing it on that basis. The buyer is less certain, and does not want to pay today for growth that may not arrive. The earnout is the compromise. The buyer pays part of the price now, and the rest later, but only if the business hits agreed targets. In effect, you are asked to prove the future you promised, and to get paid as you do.

There is a logic to this, and in the right circumstances an earnout can be a fair way to close a gap that would otherwise sink the deal. But it changes your position in a fundamental way. Part of your payment now depends on events after you have handed over control.

Where earnouts go wrong

The central tension in every earnout is control. You are being asked to hit targets in a business that someone else now owns and directs. The buyer may change strategy, cut investment, reallocate costs, or make decisions that suit their wider plans but happen to depress the very profits your earnout depends on. Sometimes this is deliberate. Often it is simply the natural consequence of new ownership. Either way, you can find your payout slipping away for reasons outside your hands.

Disputes are common. The targets that seemed clear when the deal was signed become contested when real money hangs on them. How is profit defined. Which costs count. What happens if the buyer integrates your business into theirs and the numbers can no longer be separated cleanly. Every one of these questions can become a fight, and the party holding the money usually has the upper hand.

How to protect yourself

If part of your price is coming through an earnout, the details are everything, and they must be nailed down before you sign, not left to good faith afterward. Define the targets precisely and in a way you can actually measure. Agree exactly how the relevant profits will be calculated, and protect them from being eroded by the buyer's cost allocations or strategic changes.

Secure the influence you need to deliver. If your earnout depends on the performance of the business, you need protections over the decisions that drive that performance during the earnout period, so that the buyer cannot quietly undermine your target. Keep the earnout period as short as is reasonable, because the longer it runs, the more can change and the more can go wrong. And build in clear mechanisms for resolving disputes, since some disagreement is almost inevitable.

The honest bottom line

An earnout is not something to fear, but it is something to respect. The cash you receive on completion is money in your hands. The earnout is a promise that depends on the future, on the buyer's conduct, and on the fine print you agreed. Owners who understand this treat the earnout terms as seriously as the headline price, because in practice they are just as much a part of what you will actually be paid. If a buyer offers you a wonderful number with most of it hidden inside an earnout, the right response is not gratitude. It is careful scrutiny.