What happens if my SME does not meet USMCA rules of origin?

Products that do not qualify do not receive preferential tariff treatment; normal rates apply (most-favored-nation or other applicable tariff). In a transaction, a buyer may discount value or require remedies if a material part of the business depends on exports or imports that do not comply and are exposed to higher cost or customs risk.

How is compliance with rules of origin certified?

Under USMCA the exporter may self-certify that the good meets the rules of origin; no prior certificate from an authority is required. The importer must retain the certification in its records. For an SME that sells or buys in North American chains, having that documentation in order is what the buyer will review in due diligence.

Why does a buyer review rules of origin in due diligence?

Because the value of the business may depend on its flows with the U.S. or Canada continuing to enjoy preferential tariffs. If certifications are weak, regional content is not met, or the supply chain changes, the buyer assumes risk of higher cost or loss of preference. That translates into price adjustments or conditions in the LOI.

Rules of origin: what they are and why they matter in M&A | M&A Glossary

Rules of origin are the criteria that determine the country of origin of a product for purposes of a trade agreement. Under USMCA they define how much regional content a good must have to qualify for preferential tariff treatment among Mexico, the U.S., and Canada. Only those that meet the rules get reduced or zero tariffs; those that do not pay the normal rate. For a Mexican SME in M&A they matter because the buyer will verify that exports and imports actually qualify and that certifications and the supply chain support that compliance in due diligence.

Nearshoring guide and USMCA →

What are rules of origin under USMCA?

Under USMCA, rules of origin set the criteria for a product to be considered originating in the region (Mexico, the U.S., or Canada) and to receive preferential tariff treatment. They vary by sector and type of good: they may require a minimum share of regional value added, a change in tariff classification, or that certain processes be performed in North America. Only goods that meet the rules qualify for zero or reduced tariffs in trade among the three countries.

How do regional content and certification work?

Regional content is the share of the product’s value attributable to production or materials from the USMCA zone. The agreement defines how it is calculated (transaction value or net cost method, depending on chapter and sector). The exporter does the certification; no agency issues it in advance. The importer must keep the certification and supporting records. For an SME that exports or imports in North American chains, having that documentation in order is what a buyer will review in due diligence.

Why do they matter in M&A and due diligence?

In the sale or purchase of an SME, value may depend on flows with the U.S. or Canada continuing to enjoy preferential tariffs. If rules of origin are not met or certification is weak, the buyer assumes risk of higher customs cost or disputes. That is why due diligence reviews certifications, traceability of regional content, and exposure of revenue or costs to those flows. An SME with customers or inputs in North America must be able to demonstrate compliance; that reduces the risk the buyer discounts from price or structure.

What do buyers and sellers ask about rules of origin?

What happens if my SME does not meet USMCA rules of origin?: Products that do not qualify do not receive preferential tariff treatment; normal rates apply (most-favored-nation or other applicable tariff). In a transaction, a buyer may discount value or require remedies if a material part of the business depends on exports or imports that do not comply and are exposed to higher cost or customs risk.
How is compliance with rules of origin certified?: Under USMCA the exporter may self-certify that the good meets the rules of origin; no prior certificate from an authority is required. The importer must retain the certification in its records. For an SME that sells or buys in North American chains, having that documentation in order is what the buyer will review in due diligence.
Why does a buyer review rules of origin in due diligence?: Because the value of the business may depend on its flows with the U.S. or Canada continuing to enjoy preferential tariffs. If certifications are weak, regional content is not met, or the supply chain changes, the buyer assumes risk of higher cost or loss of preference. That translates into price adjustments or conditions in the LOI.

In this glossary:

USMCA — agreement and framework for rules of origin.

Due diligence — verification before closing.

Business valuation — methods and context.

Data room — documents the buyer reviews.

M&A (Mergers and Acquisitions) — process and context.

Customer concentration — risk in supply chains and customers.

Sources

Rules of origin define who gets USMCA’s preferential tariff treatment; in a transaction, buyer and seller verify that the SME complies and has the documentation to support it. To connect the agreement, investment, and opportunities for SMEs, see the nearshoring guide: opportunities for Mexican SMEs in 2026. For the operational detail in a transaction (what to review before selling or buying), see the guide USMCA and rules of origin: what a Mexican SME must know in a transaction.