Earn-outs in Mexico: how common they are and how to structure them
In M&A in Mexico, the earn-out is the part of consideration that depends on meeting post-closing conditions (revenue, EBITDA, customer retention or other metrics). It appears when buyer and seller disagree on value or risk: the buyer wants to tie part of the price to performance; the seller accepts in exchange for a higher ceiling if targets are met. This guide summarizes how common earn-outs are in Mexican SME transactions, in what contexts they are used, and how to structure them — metric, cap, term and conditions — so the allocation of risk is clear.
The earn-out appears when there is disagreement on value or risk; the metric, the cap and the term define who bears the risk. Without a clear definition in the LOI and the contract, the dispute moves to the post-closing period.
How common are earn-outs in Mexico?
In Mexican SME transactions, earn-outs are not the rule in every deal, but they are common when the buyer wants to protect value or when there is uncertainty about revenue, key customers or seller dependence.
- Valuation gap. When the seller asks for a multiple or price the buyer is not willing to pay in full at closing, the earn-out bridges the gap: part of the price is paid if later targets are met.
- Customer concentration or uncertain revenue. When a material share of revenue depends on few contracts or the seller’s relationship with the customer, the buyer often asks for a contingent tranche tied to revenue or customer retention.
- Seller dependence. When operations or key customer relationships depend on the seller during the transition period, the earn-out aligns incentives: the seller remains motivated to hit the metrics.
- Deal size and buyer type. Private equity funds and strategic buyers with formal processes use earn-outs more often than individual or family-office buyers in very small deals; in mid-market SME deals (normalized EBITDA in the millions), the earn-out is a standard tool at the table.
How to structure an earn-out?
The structure of the earn-out determines who bears the risk and how performance is measured. The elements to define are the metric, the cap (and floor if any), the measurement period and the timing and form of payment.
| Element | What it is | What to agree |
|---|---|---|
| Metric | The variable that determines whether the earn-out is paid (and how much). | Revenue, EBITDA, customer retention or a combination; operational definition (which accounts, which period, accounting policies) to avoid disputes. |
| Cap (and floor) | Maximum payable under the earn-out; in some deals also a guaranteed minimum. | Clear cap in currency and term; if there is a floor, under what conditions; how amounts scale between floor and cap if applicable. |
| Measurement period | The period over which the metric is measured. | 12–36 months is typical for SMEs; longer periods increase risk for the seller (control changes, operations, accounting). |
| Payment | When and how the earn-out is paid once the outcome is determined. | Single payment at end of measurement period or instalments (e.g. by year); short gap between final numbers and payment; seller’s audit rights. |
Agreeing the earn-out in the LOI and reflecting it precisely in the definitive agreement avoids post-closing conflict. Useful steps:
- Define the metric in the LOI. Include the operational definition (revenue per which reports, EBITDA with which adjustments, customer retention under which criteria) and the measurement period. What is not written down is interpreted differently later.
- Set the cap and, if applicable, the floor. The cap limits the buyer’s exposure; a floor (guaranteed minimum) reduces the seller’s risk when the business is in the buyer’s hands and decisions can affect the metric.
- Specify who prepares the calculation and who reviews. Usually the buyer prepares the calculation at period end; the seller has a deadline to object and, if there is disagreement, a resolution mechanism (expert or independent determination) defined in the contract.
- Document and audit. The seller should have the right to review the information supporting the calculation; without access to data and methodology, the earn-out becomes a promise that is hard to enforce.
In this guide:
Earn-out — definition, conditions that trigger payment and how it differs from the seller note.
Consideration structure — cash, note, earn-out and adjustments.
How to structure a purchase offer in Mexico — price and adjustment mechanisms.
Seller note in Mexico — non-contingent tranche of consideration.
Earn-out simulator — model contingent payment scenarios.
How to sell your company in Mexico — process and preparation for closing.
Due diligence in Mexico — what the buyer reviews before setting consideration.
Sources
What to review after this guide?
The glossary entry on earn-out defines the concept and links to the simulator to model scenarios. The guide on How to structure a purchase offer in Mexico covers price, consideration and adjustment mechanisms where the earn-out is typically included.