In this piece · 6 sections
What an earnout is — and why a buyer wants one
An earnout is the part of a sale price you don't get at closing. Instead of paying the full number on the wire, the buyer pays a portion up front and promises the rest later — but only if the website hits agreed performance targets in the months or years after the deal closes. It turns a single sticker price into a guaranteed slice plus a conditional slice.
Buyers reach for earnouts to solve two problems. The first is a valuation gap: the seller believes the site is worth more than the buyer is willing to commit cash for. An earnout bridges that gap by saying "prove the numbers hold and you'll get the difference." The seller keeps the upside on paper; the buyer only pays it if it materializes.
The second is risk. A website's earnings can depend on a single traffic channel, a recent algorithm update, or a niche that just spiked. The buyer wants to know revenue survives the handoff, not just that it existed the week of the sale. An earnout pushes some of that uncertainty back onto the seller, which is exactly why the headline price can go up when one is on the table.
Treat the headline number with the same skepticism a buyer treats your traffic. Before you negotiate any structure, anchor on a conservative, evidence-based range — our how-to-sell-a-website checklist walks the prep that earns a tighter band and a higher midpoint in the first place.
How earnouts are structured
Most website earnouts hang on one of two metrics: a top-line measure (revenue, often gross sales or recurring revenue) or a bottom-line measure (profit, SDE, or EBITDA). The choice matters more than the percentage.
Duration is the other lever. Short earnouts (6–12 months) limit how long your money is exposed but give the metric little time to prove itself. Longer earnouts (2–3 years) can capture more upside but keep you tied to a business you no longer own and run. The longer the window, the more the definitions and protections below matter.
Earnouts often travel with other deferred-payment tools — see seller financing a website sale for the case where you act as the lender instead of betting on future performance.
All-cash vs earnout: the seller's trade
The decision is rarely "more money or less money." It's "a smaller number you control versus a larger number you partly don't." Laid side by side, the trade is clearer:
The numbers above are illustrative dimensions, not a quoted band — every deal sets its own split. The honest summary: an earnout is a bet that the site performs after you hand over the keys, made on a field the other player now controls.
How to protect yourself in an earnout
Most earnout disputes come from vague drafting, not bad faith. The fix is making the conditional money as measurable and as insulated as possible before you sign.
- Define the metric precisely. "Revenue" and "profit" mean nothing until the contract says which line, on which report, computed how. Specify the accounting method, what counts as revenue, which costs are deductible, and how owner add-backs are handled. A clean SDE/EBITDA definition is the anchor.
- Get reporting and audit rights. You should receive regular figures and be able to verify them against source data. No visibility means no way to enforce the target.
- Add anti-manipulation covenants. Bar the buyer from shifting revenue out of the window, loading discretionary costs into the period, or starving the site of the spend it needs to hit targets.
- Negotiate acceleration. If the buyer sells the site, shuts it down, fires you, or changes the model mid-earnout, the remaining payments should accelerate or become due. Otherwise the buyer can engineer a miss.
None of this is legal advice. Earnout clauses are where deals go to litigation; have a transaction attorney draft the metric definitions, covenants, and acceleration triggers. This article is an editorial explainer from a valuation tool, not a substitute for counsel.
When to walk away from an earnout
Some earnouts are not worth the headline. Walk — or insist on more up-front cash — when the conditional portion is large but the metric sits entirely outside your control, especially a profit target run by a buyer who plans to restructure costs immediately.
Be wary when the window is long and the buyer is thinly capitalized or untested. A multi-year earnout is only as good as the buyer's solvency and good faith three years out. If you can't verify either, the conditional money is closer to a hope than an asset.
Also walk when the targets assume a growth curve the site has never demonstrated. An earnout pegged to a number the business has to materially exceed to pay isn't a price — it's a lottery ticket the buyer printed. Anchor the targets to what your evidence actually supports, the same conservative posture you'd want from any appraisal range.
How an earnout changes a site's effective value
From a valuation standpoint, an earnout doesn't raise what a site is worth — it changes how, when, and whether you collect it. The effective value to the seller is the guaranteed cash plus the conditional portion discounted for the odds it pays and the time you wait. The deeper that discount, the smaller the gap between an "impressive" headline and a realistic all-cash offer.
That's why the order of operations matters. Establish the site's defensible value range first — on evidence, conservatively — then judge any earnout against it. A structure is only attractive when the probability-weighted total clears what a firm offer would pay, after accounting for the months your money is exposed.
The same discipline applies on the way in: never let a buyer's structure define your number. Bring your own range to the table, see exactly which inputs move it, and treat the earnout as a financing wrapper around that value — not as the value itself. For more on deal mechanics and what you keep at the wire, the pricing page and the broader selling guides are the next stops.
