What is M&A and how does it work in Mexico

M&A (mergers and acquisitions) is the set of transactions through which companies transfer ownership, merge operations, or acquire assets. In Mexico the term applies mainly to small and mid-size companies (SMEs), not only to large corporate deals. The sale of a family-owned distributor, the merger of two manufacturers, or the acquisition of operating assets are all M&A. Understanding how M&A is structured in the Mexican context — from asset purchase vs share purchase to the seller note and COFECE thresholds — is essential for founders weighing a sale.

Why is M&A in Mexico different?

Four dimensions in which SME M&A in Mexico differs from markets like the US or Europe:

Aspect	Mexico (SME)	US / Europe (reference)
Typical structure and tax	Asset purchase predominant (to avoid labor/tax/IMSS liabilities). Income tax on gain from asset sale; share transfer treated differently. Negotiated in the LOI.	Share purchase more common; institutional debt allows different structures.
Financing	Little bank credit. Seller note is standard: typical 15% at closing, 50% note (10–12%, 3 years), 35% contingent. The seller is the de facto lender.	Acquisition credit more accessible (SBA, leveraged finance); seller does not necessarily finance the buyer.
Business profile and risk	Mostly family businesses; founder = operator and client relationships. Lower multiples, extended transitions, contingent tied to retention. Owner dependency 85%+ frequent.	Professional management more common; less seller dependency.
Regulation	COFECE: thresholds by value and share. Most SMEs below threshold; if notification applies, +30–60 days. Confirm in LOI.	Own regimes (FTC, EU); different thresholds and timelines.

What are the stages of the M&A process?

The seven stages, from the decision to sell through closing and transition:

Preparation and decision to sell

Scope (assets vs company), timeline and expectations; align with market reality and prepare the business narrative.

EBITDA normalization and capital readiness

Build normalized EBITDA as the valuation base; without it reported EBITDA is not defensible. See Normalized EBITDA.

Identifying and approaching buyers

Buyer list (strategic or financial), sale materials (teaser, CIM) and outreach under confidentiality.

Term sheet and LOI

Enterprise value (multiple of normalized EBITDA), three-tranche structure and exclusivity. See LOI and term sheet.

Due diligence

Verification of assets, liabilities, contracts, customer concentration, labor and tax. Many deals are renegotiated or break here. More in due diligence.

Definitive agreement negotiation

Purchase agreement, representations and warranties, closing conditions, seller note and contingent consideration.

Closing and transition

Signing, disbursement per structure, operational handover and transition period; measurement of contingent consideration post-closing.

For what the buyer does at each stage, see The sale process: what the buyer does at each stage.

What examples illustrate deals that close vs break?

Two anonymized cases: one that closes because seller and buyer share the valuation base; one that breaks because normalization and risks were not prepared.

Aspect	Closes (water distribution)	Breaks (B2B services)
Reported EBITDA	MXN 4.85M	MXN 6.2M
Normalized EBITDA	MXN 3.44M	MXN 3.1M (in diligence)
Multiple / EV	4.0x → MXN 13.77M	3.5x (risk-adjusted) → MXN 10.85M defensible
Structure	15% closing, 50% note 12% 3 years, 35% contingent	Seller anchored to 5x (MXN 31M); buyer walks
Key risks	Top 5 (54%), churn, institutional gap, 85% dependency — disclosed.	71% in 3 clients, no contracts; founder runs everything; MXN 1.8M labor not disclosed.
Outcome	Closed: seller accepted normalization; buyer presented detailed bridge.	Broke: seller had not normalized; buyer had — and walked.

The pattern is consistent: the buyer who builds the normalization bridge first controls the negotiation. The seller who enters without having built it negotiates on the wrong base. For the multiple framework, EBITDA multiple.

Why do M&A transactions fail in Mexico?

Deals break or get renegotiated when one of these causes appears without having been priced or disclosed:

Cause	Effect
EBITDA does not survive normalization	Family expenses, above-market compensation, one-off items. In diligence the number collapses.
Customer concentration not disclosed	If a substantial share of revenue depends on one or few clients and it was not communicated, the buyer adjusts price or exits.
Owner dependency without transition plan	The buyer discounts the risk in the multiple or structure. If no one can run the business without the founder, the deal does not close or closes at much lower value.
Hidden liabilities in diligence	Labor, tax, environmental reduce net value peso for peso or blow up the deal.
Expectation anchored to a multiple the business cannot support	The seller assumes “5x” without considering normalization or concentration; the offer comes in lower and distrust breaks the process.

How do you prepare for a sale?

Four steps that reduce the risk of the process breaking or value being discounted:

1. Normalize EBITDA before entering any process. Build the bridge of adjustments a buyer will make; without that base you negotiate on numbers that do not survive diligence.
2. Understand the consideration structure. Not just headline enterprise value: what share goes in cash at closing, in seller note and in contingent; timelines and conditions.
3. Reduce owner dependency and customer concentration. Every risk the buyer finds becomes a discount or contingency; document relationships and contracts before going to market.
4. Review liabilities and contingencies. Labor, tax, environmental; disclose and quantify what shows up in diligence to avoid surprises that break the deal.

You can use the EBITDA calculator to build that base.

On the blog:

The sale process: what the buyer does at each stage — stages, documents and buyer decisions.

How to prepare your company for a sale: what the buyer will review before making an offer — what the buyer reviews before offering.

Financing for business acquisitions in Mexico — debt, seller note and mixed structures.

What is EBITDA and how is it calculated — base of the multiple and normalization.

Why your company may be worth less than 3x EBITDA — and what to do about it.

How to structure a seller note in Mexico: rate, term and conditions — structure and conditions in the LOI.

What to look for before making a purchase offer — factors that determine value before offering.

Sources

M&A in Mexico demands clarity on structure, normalization and value expectations before you sit down to negotiate. To apply this framework to your case, explore How to sell your company in Mexico: complete guide for founders and How to buy a company in Mexico: complete guide for buyers.