USMCA Review Raises the Cost of Uncertainty: Tariff Risk Shakes Mexico’s Production Supply Chain
The USMCA review could redefine rules and costs; losing tariff exemptions would raise prices and strain investment across North America.
On July 1, the first formal review of the United States–Mexico–Canada Agreement (USMCA) begins—a process arriving at a time of realignment for Mexico’s economy. On the one hand, the country remains heavily dependent on external demand; on the other, it has gained relevance as a regional manufacturing platform amid the reshoring/relocation of supply chains (nearshoring). In that context, the main risk is not necessarily that the agreement collapses, but that the conditions that currently support frictionless trade erode—especially the tariff exemptions tied to compliance with rules of origin.
An estimate by the Tax Foundation puts the potential impact of removing that tariff “shield” into perspective: between 2027 and 2036, U.S. businesses and consumers would pay roughly $466 billion more in tariffs. The calculation assumes that cars, auto parts, and trucks that currently enter under the USMCA would face a 25% duty, while the rest of covered goods would pay 10%, on top of other existing trade charges. Although the total is counted on the U.S. side, the shock would ripple through the region via fewer orders, tighter margins, and price renegotiations along highly integrated supply chains in which Mexico plays a key link.
For Mexico, the risk is concentrated in sectors where integration with the United States runs deepest—automotive, electronics, machinery, medical equipment, and export manufacturing—and where regulatory compliance is already a cost factor. Uncertainty over whether the agreement will be extended for another 16 years or shift into annual reviews through 2036 can become, by itself, an additional tax: it makes investment decisions more expensive, stretches out expansion timelines, and forces companies to allocate more resources to compliance management, traceability, and origin audits.
The backdrop is that the U.S. trade agenda has changed. The debate is no longer limited to opening markets or lowering costs; it is intertwined with economic security, supply resilience, technological competition with China, and controls on sensitive goods. Specialized consultancies have described this possible outcome as “managed fragmentation”: the USMCA would remain in place, but with more incremental requirements, more practical exceptions, and a heavier regulatory burden—directly affecting costs and logistics timelines.
In macro terms, Mexico enters the review with strengths and vulnerabilities. Monetary stability and fiscal prudence have served as anchors of confidence, but potential growth remains constrained by bottlenecks—energy, water, logistics infrastructure, and security—that slow the pace of new industrial projects. In that setting, any tariff increase or tightening of rules of origin acts as an additional brake: it reduces Mexico’s relative appeal versus other locations, even within the region itself, and raises the likelihood that some production will be reconfigured to meet stricter regional-content thresholds.
Rules of Origin, Compliance, and the New Bill for Trade
The discussion over rules of origin is the most technical core—and the one with the greatest economic impact. If the criteria for proving regional content are tightened—for example, for auto parts, steel, aluminum, electronics, or chemicals—companies will face a decision: relocate suppliers into North America, absorb higher costs, or pay tariffs. For Mexico, the first option can be an opportunity if it manages to attract higher value-added links in the chain; however, it also requires investment in local suppliers, certifications, human capital, and reliable energy. The alternative of absorbing costs squeezes margins and can translate into lower real wages or reduced hiring in export segments, while paying tariffs would erode competitiveness versus rivals that do comply with the rules or that receive domestic incentives on the U.S. side.
Moreover, compliance is no longer just paperwork. The global trend points toward more customs checks, more audits, and greater transparency requirements around components, traceability, and processes. For mid-sized companies plugged into export networks—particularly in Mexico’s Bajío region and the country’s northern states—this can mean additional investment in systems, advisory services, and supplier controls. In the short term, that burden can slow exports; in the medium term, if managed well, it could professionalize supply chains and raise the bar for competing in strategic sectors.
The weight of regional integration also helps explain why a full breakup seems less likely. In 2024, trade in goods and services among Mexico, the United States, and Canada approached $2 trillion, reflecting an interdependence that makes it costly to “unwind” the production network. A Chicago Council on Global Affairs survey, in collaboration with firms in Mexico and Canada, also found broad public support for the agreement: 73% in Mexico, 78% in the United States, and 81% in Canada believe the USMCA benefits their country’s economy. Where views diverge is on the “how”: in Mexico, a meaningful share favors renegotiation rather than keeping current rules unchanged, consistent with the sense that conditions have shifted and that some areas need updating.
For the Mexican government, the challenge will be to balance export pragmatism with an industrial strategy that addresses the new filters embedded in U.S. trade policy. The nearshoring opportunity is still there, but it is increasingly selective: competitive labor and geographic proximity are no longer enough; energy availability, regulatory certainty, border infrastructure, and security along logistics corridors also matter. On that chessboard, the outcome of the USMCA review will serve as a signal for investment flows in the coming years.
Looking ahead, the baseline scenario points to a USMCA that remains in force but becomes more demanding: stricter rules of origin, greater scrutiny of investments, and an added layer of uncertainty that increases the cost of doing business. For Mexico, minimizing damage and capturing opportunities will depend on accelerating infrastructure, strengthening local suppliers, and maintaining technical dialogue channels that reduce trade friction.
