Is earn-out the same as contingent consideration in a Mexican LOI?

In Mexican SME practice, yes —both terms refer to the deferred, conditional tranche of consideration that is paid only if specific post-closing conditions are met. Technically, earn-out implies payment tied to performance; contingent consideration is broader and can include mechanics to offset liabilities. In practice the LOI uses both mechanics in the same tranche: performance conditions trigger payment, discovered liabilities reduce it peso for peso.

Can the buyer manipulate earn-out metrics after closing?

Yes, and that is the main risk for the seller. Once the buyer controls the business, it controls cost allocation, accounting policy, and revenue recognition. An EBITDA-based earn-out gives the buyer levers to reduce the metric —accelerating costs, allocating overhead, or changing accounting policies. Protections: metrics based on revenue, gross margin, or EBITDA with agreed accounting policies locked in the definitive agreement. Audit rights are non-negotiable.

What if the business deteriorates because of the buyer’s decisions after closing?

If the buyer makes operational decisions that hurt the metrics —changing prices, losing key staff, restructuring routes— and those decisions cause the earn-out conditions not to be met, the seller may have a claim depending on how the definitive agreement is drafted. A well-negotiated earn-out includes a covenant that the buyer will operate the business in the ordinary course during the earn-out period. Without that covenant, the seller has limited recourse.

In what types of Mexican SME transactions is earn-out most common?

In businesses with: high owner dependence (the buyer cannot verify that revenue will survive the transition), high customer concentration (top 3 account for 50%+ of revenue), declining or volatile EBITDA trends, or significant risk of undisclosed liabilities. In stable, diversified businesses with clean finances and a management team that operates independently of the founder, buyers have less reason to push for an earn-out —the risk profile does not justify the negotiation friction.

Earn-out: what it is and how it works in M&A | M&A Glossary

An earn-out (contingent consideration) is a deal mechanism that ties part of the sale price to the business’s performance after closing. Instead of paying all enterprise value at closing, the buyer defers a tranche —typically 20–40% of EV in Mexican SME transactions— subject to verifiable conditions over a defined period, usually 12–24 months. The earn-out is not a discount: it is a risk transfer mechanism. The buyer uses it to close a valuation gap when the seller’s EBITDA is hard to verify, concentrated, or owner-dependent. The seller accepts it as the price of closing the deal —or rejects it and walks away.

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For how common they are in Mexico and how to structure them (metric, cap, term), see the guide Earn-outs in Mexico: how common they are and how to structure them.

Why do buyers propose earn-outs?

Valuation gap
When buyer and seller cannot agree on normalized EBITDA —whether because the seller’s adjustments are aggressive or because the business has declining trends— the earn-out lets both sides bet on future performance instead of arguing about the past. If the business performs as the seller claims, the seller gets paid. If not, the buyer pays less.
Concentration and owner dependence
In businesses where more than 60% of revenue comes from 3 clients, or where the founder is the main relationship with each key account, the buyer cannot verify at closing whether that revenue will survive the change of ownership. The earn-out transfers that transition risk to the seller —the person best positioned to manage it.
Unquantified liabilities
When diligence reveals contingent liabilities that cannot be fully quantified at closing —pending tax disputes, informal labor arrangements, undisclosed payables— the earn-out tranche acts as a holdback that absorbs those liabilities peso for peso before the seller receives payment.

What is the typical structure of an earn-out in Mexico?

Component	Detail
Contingent tranche	25–35% of total EV
Measurement period	12–24 months post-closing
Measurement base	EBITDA, revenue, or retention of top‑5 clients
Full payment condition	Metrics meet or exceed agreed threshold
Peso-for-peso reduction	For pre-closing liabilities discovered post-close
Proportional reduction	If metrics fall between minimum threshold and target
Zero payment	If metrics fall below minimum threshold or liabilities exceed the tranche

Fictitious example, logistics services sector, Mexico 2024: a logistics services company with normalized EBITDA of MXN 4.1 million was acquired at 4.5× —enterprise value of MXN 18.45 million. The buyer structured consideration as follows:

Item	Value
Normalized EBITDA	4,100,000.00
Multiple / enterprise value	4.5× → 18.45 M MXN
Cash at closing (15%)	2,770,000.00
Seller note (55%, 11% annual, 3 years)	10,150,000.00
Earn-out (30%)	5,540,000.00
Earn-out conditions (month 18)	Retention of 4 clients; EBITDA ≥ 3.8 M year 1. Reduction for pre-closing liabilities.
Outcome	4 clients retained; EBITDA 3.95 M; earn-out 5.54 M MXN paid; total 18.45 M MXN.

The earn-out is not a penalty on the seller —it is a shared bet on the real value of the business. A seller who knows the business accepts that bet. One who does not negotiates it down.

How does earn-out differ from contingent consideration and the seller note?

Concept	Type	Description
Seller note	Fixed obligation	The buyer must pay principal and interest regardless of business performance. It is debt, not contingent. The seller is the creditor.
Contingent consideration (earn-out)	Variable obligation	The buyer pays only if conditions are met. Performance risk sits with the seller after closing. In Mexican SME practice these terms are often used interchangeably —both refer to the deferred, conditional tranche of consideration.
Escrow / holdback	Risk holdback	Fixed amount held by a third party (or the buyer) for a defined period to cover specific known risks —pending tax dispute, warranty claim period. Released when the risk expires or reduced by actual claims. Not tied to performance but to risk.

In Mexican SME transactions all three appear in the same deal: seller note for the stable middle tranche, earn-out for the performance-contingent tranche, and sometimes a small escrow for specific identified risks. See consideration structure and the LOI for how they are documented.

What does the seller negotiate in an earn-out?

Measurement base
EBITDA is harder to manipulate than revenue —but the buyer controls post-closing accounting. The seller should push for metrics based on revenue or gross margin instead of EBITDA if the buyer will control cost allocation after closing.
Measurement period
Shorter is better for the seller. 12 months leaves less time for external factors to hurt performance. 24 months exposes the seller to market risk they no longer control.
Minimum thresholds and proportionality
A binary earn-out (all or nothing) is the worst structure for the seller. Push for a graduated scale: full payment above target, proportional payment between a floor and target, zero only below the floor.
Definition of offsettable liabilities
The peso-for-peso reduction clause must define exactly what qualifies as an offsettable liability —with a cap, deadline, and claim process. An open liability offset gives the buyer unlimited rights to adjust the earn-out tranche downward.
Audit right
The seller must retain the right to audit the buyer’s financial statements for the earn-out period. Without this, the seller has no way to verify the metrics the buyer reports.

What do buyers and sellers ask about earn-out?

Is earn-out the same as contingent consideration in a Mexican LOI?: In Mexican SME practice, yes —both terms refer to the deferred, conditional tranche of consideration that is paid only if specific post-closing conditions are met. Technically, earn-out implies payment tied to performance; contingent consideration is broader and can include mechanics to offset liabilities. In practice the LOI uses both mechanics in the same tranche: performance conditions trigger payment, discovered liabilities reduce it peso for peso.
Can the buyer manipulate earn-out metrics after closing?: Yes, and that is the main risk for the seller. Once the buyer controls the business, it controls cost allocation, accounting policy, and revenue recognition. An EBITDA-based earn-out gives the buyer levers to reduce the metric —accelerating costs, allocating overhead, or changing accounting policies. Protections: metrics based on revenue, gross margin, or EBITDA with agreed accounting policies locked in the definitive agreement. Audit rights are non-negotiable.
What if the business deteriorates because of the buyer’s decisions after closing?: If the buyer makes operational decisions that hurt the metrics —changing prices, losing key staff, restructuring routes— and those decisions cause the earn-out conditions not to be met, the seller may have a claim depending on how the definitive agreement is drafted. A well-negotiated earn-out includes a covenant that the buyer will operate the business in the ordinary course during the earn-out period. Without that covenant, the seller has limited recourse.
In what types of Mexican SME transactions is earn-out most common?: In businesses with: high owner dependence (the buyer cannot verify that revenue will survive the transition), high customer concentration (top 3 account for 50%+ of revenue), declining or volatile EBITDA trends, or significant risk of undisclosed liabilities. In stable, diversified businesses with clean finances and a management team that operates independently of the founder, buyers have less reason to push for an earn-out —the risk profile does not justify the negotiation friction.

In this glossary:

Normalized EBITDA — most common earn-out measurement base.

LOI — where the earn-out tranche and conditions are agreed.

Due diligence — where risks that affect the earn-out are identified.

EBITDA multiple — earn-out affects the effective multiple the seller receives.

DSCR — business’s capacity to support debt and payments tied to earn-out and seller note.

Sources

The earn-out is a powerful tool to align interests and close valuation gaps in Mexican SME transactions. To understand how it fits into valuation methods and the full deal structure, see the guide to business valuation methods in Mexico.