What Is an Earnout in an Ecommerce Acquisition?
Written by Christopher Krassnig - Founder - Kairos Exchange and ZenoX Media. Last reviewed 11 August 2026.
An earnout pays part of the purchase price after closing, tied to the store hitting agreed revenue or profit targets under the new owner. Buyers and their lenders will not pay upfront for growth that has not happened yet, so an earnout lets the seller share in it if it does. It differs from a seller note, which pays on a fixed schedule regardless of performance.
Looking to buy one? Join the buyer waitlist
Why Buyers and Sellers Reach for One
Deals stall when the two sides disagree about the future, not the past. The seller points at a growth trend and prices it in. The buyer, or the buyer's lender, will not pay cash today for a trend that has not proven itself yet. An earnout splits the difference: part of the price closes now, and the rest depends on the store actually hitting the numbers the seller is confident about.
How It Differs from a Seller Note
A seller note is a fixed obligation: the buyer owes a set schedule of payments regardless of how the store performs after handover. An earnout is contingent, the seller only gets the extra payment if the business actually hits the agreed target, and gets nothing extra if it does not. A note is a loan. An earnout is a bet on the future, taken by the seller instead of the buyer.
What Makes an Earnout Work, and What Wrecks One
Every earnout needs a metric both sides can check against the same source data, revenue or profit read straight from the order ledger, not a number one side has to take the other's word on. Disputes happen when the metric is vague, when the buyer changes how the business runs during the earnout period, or when nobody agreed in writing what happens if the new owner's own decisions affect the result.
Related questions
Checked against
- Harvard Law School Forum on Corporate Governance, Harvard Law School Forum on Corporate Governance: the art and science of earn-outs in M&A (2025) - read 11 August 2026
Buying a Store Somewhere Else?
Kairos Due Diligence works on any deal - Flippa, a broker, a private sale. A person reads the store's raw numbers and writes you a report. If the deal is bad, the report says walk away. From EUR 1.5k, no account needed.
Answered. Now Get in Line for the First Store
When the doors open, verified stores go to the waitlist first. You have done the reading part. The list is the part with a queue.