Talks to cut United States duties on Mexican steel, aluminum and vehicles have stalled inside the administration over Commerce Department resistance, leaving roughly half a trillion dollars of annual trade waiting on a rate decision as the USMCA joint review approaches.
WASHINGTON, Oct. 26, 2026
A tariff agreement between the United States and Mexico that negotiators on both sides believed was within reach has stalled, and the obstacle is not in Mexico City.
President Trump told reporters on Friday that “we’re very close to a deal with Mexico,” adding that any agreement would have to be very good for the United States or he would not close it. President Claudia Sheinbaum had struck a similar note three days earlier, saying “we are already very close, there are still some issues,” while declining to put a probability on completion. Behind those statements sits a negotiation that reporting in the past fortnight indicates has run into internal opposition within the administration rather than disagreement across the border.
At stake are the Section 232 duties that now reach the core of Mexican industrial exports: tariffs as high as 50 percent on steel and aluminum, and 25 percent on automobiles, together with duties on an expanding list of derivative products made from covered metals. Mexico has sought a reduction to 15 percent or less on vehicles, the rate applied to Japanese and South Korean cars, and a substantial cut on metals.
What was on the table
The package that negotiators had assembled through September would have cut the automobile tariff from 25 percent to 15 percent. Because the Section 232 automobile duty applies only to non United States content, the effective burden on a typical Mexican assembled vehicle with substantial American content would have fallen to roughly 10 to 12 percent.
That distinction matters because it is the metric Mexico has used to argue it should receive better terms than Canada. The Canadian arrangement, as understood by Mexican officials, carries a 15 percent headline rate that falls to roughly 7 percent effective after the maximum regional content discount. Mexican negotiators have argued that their supply chains carry comparable or greater American content and should receive at least equivalent treatment.
On metals, the direction was agreed but the magnitude was not. Officials familiar with the talks described optimism about a reduction from the current level, which reaches 50 percent, without a settled figure. A parallel question concerned finished products made from steel and aluminum, the derivative lists that Commerce has expanded repeatedly since 2025 and which now capture a wide range of manufactured goods well beyond primary metal.
In return, Mexico was to offer concessions that neither government has described publicly. Reporting has pointed to commitments on third country transshipment, screening of Chinese investment in Mexican manufacturing, and procurement or energy arrangements, but no text has been published and no signing date has been set.
Where it stopped
Reporting published on October 15 and developed further on October 20 identified Commerce Secretary Howard Lutnick as the official who declined to support the package. The objection, as described, was not to the concept of an agreement but to the depth of the cuts: resistance to major reductions on the 25 percent automobile rate, to major reductions on the 50 percent metals rates, and to lower treatment for finished products made from those materials.
The institutional dimension is notable. United States Trade Representative Jamieson Greer has led the administration’s trade agenda through most of 2026, meeting Sheinbaum and Economy Minister Marcelo Ebrard during the fourth round of USMCA discussions in early September. The reported intervention represents a reassertion of Commerce Department influence over an agreement that USTR had largely assembled, and it is the second occasion this year on which an advanced negotiation with a North American partner has been disrupted at a late stage. An emerging arrangement with Canada collapsed in August under comparable circumstances.
Both governments have publicly rejected the characterization of an impasse. The Commerce Department says it remains in constant dialogue with Mexico. Mexico’s deputy trade minister, Luis Rosendo Gutierrez, has said progress continues. Mexico’s Economy Ministry has described talks as constructive and noted that no deadlines have been set, a formulation that has recurred in Mexican statements since the summer.
The scale of what is being negotiated
Mexico is the largest single source of United States goods imports, and the figures explain why the negotiation has consumed so much senior attention on both sides.
United States goods trade with Mexico produced a deficit of 197.0 billion dollars in 2025, on exports of 337.3 billion dollars and imports of 534.3 billion dollars. Through the first eight months of 2026 the deficit ran at 155.9 billion dollars, on exports of 263.5 billion and imports of 419.3 billion. Ebrard has said that roughly 80 percent of Mexican exports to the United States still enter free of duty, principally through USMCA preference.
Modelled estimates of the applied United States tariff structure maintained by Global Trade Alert put the overall average rate on imports from Mexico at about 6.6 percent as of October 26, against 503 billion dollars of United States imports in 2024. That headline figure is close to meaningless on its own, and the model’s own documentation warns against quoting it at the sector level, because a USMCA partner’s average conceals a bimodal distribution: compliant goods enter at or near zero while non compliant goods carry the full Section 232 or residual rate.
The chapter detail is more useful. Vehicles under chapter 87 account for 136.6 billion dollars of 2024 imports with a modelled average near 11.5 percent. Machinery under chapter 84 accounts for 105.4 billion dollars at roughly 6.6 percent, and electrical equipment under chapter 85 for 87.1 billion dollars at roughly 3.7 percent. At individual product level, the modelled rate on passenger vehicles under subheading 8703.23.01, representing 26.1 billion dollars of 2024 trade, sits near 14.3 percent, while light trucks under 8704.31.01, representing 22.2 billion dollars, sit near 13.0 percent.
Those are the lines a ten point cut would move. On vehicles alone, the difference between a 25 percent and a 15 percent headline rate applied to non United States content is measured in billions of dollars annually across the Mexican assembly base, which employs roughly 800,000 people and supplies a large share of North American light vehicle production.
The review that is driving the clock
The negotiation is not happening in isolation. The USMCA joint review process is now underway, and both governments regard a tariff agreement as the precondition for a workable review rather than an outcome of it.
USTR opened a public comment process for the review on October 5. Mexico plans its own domestic consultations in January. Mexican officials have maintained that the agreement runs for another ten years under its own terms, a position that responds to statements from the United States side earlier in the year questioning whether the agreement would be carried forward in its current form.
The sequencing problem is straightforward. If the Section 232 duties remain at current levels into the review, Mexico enters that process arguing that the preferential architecture of USMCA has been hollowed out by measures imposed outside it. If the duties are cut first, the review becomes a negotiation about rules of origin, labor provisions and dispute settlement rather than about whether the agreement has any practical effect on the goods that matter most.
The United States midterm elections on November 3 add a further constraint. A tariff reduction for Mexico announced in the final week of a campaign would be difficult to defend in the industrial states where Section 232 metals duties are politically popular, which is one reading of the reluctance that has surfaced within the administration. That constraint lifts on November 4.
Why Section 232 carries the weight
The reason these particular duties are the subject of negotiation, rather than the broader tariff program, is the Supreme Court’s decision in February 2026 invalidating the tariffs imposed under the International Emergency Economic Powers Act.
That ruling removed the legal basis for a substantial part of the tariff architecture and triggered a refund process administered through the Court of International Trade that importers are still working through. What survived were the statutory trade remedies: Section 232 of the Trade Expansion Act of 1962, Section 301 of the Trade Act of 1974, and the older authorities that have been deployed in specific cases.
The consequence for Mexico is that the measures now constraining its exports are national security determinations made by the Commerce Department, which is precisely why the Commerce Secretary’s position carries decisive weight. A Section 232 adjustment is made by presidential proclamation on the basis of a departmental finding. Lowering a rate, granting a quota in lieu of a tariff, or carving out a partner requires Commerce to be comfortable with the change, in a way that an emergency measure did not.
It also means the instrument available to the two governments is more durable than what it replaced. A Section 232 arrangement, once proclaimed, is not vulnerable to the same legal challenge that unwound the emergency tariffs. Mexican negotiators have treated that durability as worth paying for.
Implications for importers and exporters
For importers, the practical guidance during a stall is to plan for continuity rather than relief.
USMCA certification discipline is the first priority. With the bimodal structure described above, the difference between a compliant and non compliant entry is the entire tariff. Importers should verify that regional value content calculations, labor value content requirements for vehicles, and the supporting records behind certifications of origin would survive a verification. Section 232 exposure attaches to the non originating content, and the quality of the content calculation determines the bill.
Second, derivative product lists require continuous monitoring. Commerce has added articles to the steel and aluminum derivative lists repeatedly, and an inclusion can convert a product that entered duty free last quarter into one carrying a metals content duty. Importers should maintain a standing process for reviewing Federal Register inclusions rather than checking periodically.
Third, retroactivity should not be assumed. If an agreement is reached after the election, there is no guarantee that reduced rates apply to entries already filed. Importers hoping for relief on current shipments should not build it into pricing.
Fourth, documentation standards should reflect the lesson of the February ruling. Entries filed under measures that are subsequently modified or invalidated are only recoverable if the entry record supports a claim. Protest deadlines and post summary correction windows run regardless of what happens in the negotiation.
For United States exporters, the exposure runs through Mexican purchasing decisions. Mexican buyers facing uncertainty about their own access to the United States market defer capital spending, which affects American machinery, equipment and component suppliers. United States exports to Mexico of 263.5 billion dollars in the first eight months of 2026 are a function of Mexican industrial activity, and that activity is in part a function of the tariff decision now pending.
The Canada comparison that neither side wants to make
Mexican officials have been careful in public about the comparison with Canada, and for good reason. The Canadian track has been the more turbulent of the two, and invoking it cuts both ways.
An arrangement with Ottawa appeared settled in August before collapsing late. Since then the relationship has moved in a different direction entirely, with the United States applying duties to Canadian goods under Section 338 of the Tariff Act of 1930, an authority that had gone essentially unused for decades, and modifying the scope of additional duties on Canadian products as recently as October 23, with changes taking effect October 30. Separate reporting has indicated the administration is also preparing to remove duties from some Canadian goods while adding them to others.
For Mexico, the lesson drawn in private is that an incomplete negotiation is not a stable state. The Canadian experience suggests that where a package fails to close, the vacuum is filled by unilateral measures rather than by a return to the status quo. That assessment is one reason Mexican negotiators have pressed to conclude something, even at terms short of their opening position.
The comparison also shapes the United States side. Having seen one North American negotiation fail and the relationship deteriorate afterward, officials who favor an agreement with Mexico can point to a concrete counterfactual. Those who favor holding the line on metals can point to the same case and argue that the duties were sustained without the commercial damage that was predicted.
What the sectors are saying
United States steel producers and the aluminum industry have consistently opposed partner specific relief, arguing that the Section 232 program only works if it is comprehensive and that quota or rate carve outs invite transshipment. Their position has carried substantial weight with Commerce throughout the program’s life and is the clearest institutional explanation for the resistance now reported.
Automakers are split in a way that is less visible than it appears. Manufacturers with large Mexican assembly footprints want the vehicle rate reduced. Those with proportionally more United States assembly but Mexican component sourcing care more about the derivative metals lists and about rules of origin treatment than about the headline vehicle rate. The result is that the industry has not spoken with one voice, which has weakened its influence.
Mexican industry associations have focused on the derivative question, arguing that the expansion of covered articles has had a larger cumulative effect on Mexican manufacturers than the headline metals rates, because derivative inclusions reach products that were never part of the metals trade and that have no realistic domestic United States alternative supplier.
Agricultural and consumer goods exporters on both sides have largely stayed out of the dispute, since the great majority of that trade continues to move duty free under USMCA preference and is not touched by the Section 232 measures at issue.
Analysis: the cost of the delay
The economic cost of an unresolved negotiation is not the tariff itself, which companies have now absorbed or passed through for the better part of two years. It is the inability to make location decisions.
North American automotive and metals supply chains are reconfigured on five to seven year horizons. A manufacturer deciding whether to place a new line in Mexico, in the United States or in a third country needs a view of the applicable rate that extends beyond the next election cycle. What the past year has supplied instead is a sequence of near agreements, each reported as imminent and each unconsummated.
The observable result has been deferral rather than relocation. Announced greenfield investment in Mexican manufacturing has slowed, but the anticipated reshoring to the United States has not materialized at corresponding scale, because the same uncertainty that deters Mexican investment also deters American investment premised on a rate structure that may change.
That is the argument Mexican negotiators have put to their counterparts: that an agreement at a higher rate is worth more to both economies than the prospect of a lower rate that never arrives.
Reading the signals
Three indicators will tell a trade desk whether the negotiation is moving before any announcement is made.
The first is the content of the USTR comment docket opened on October 5. Submissions from the steel and aluminum associations, from automakers and from Mexican industry bodies will reveal where each constituency believes the fight is, and a surge of filings on derivative treatment would suggest that is where the final package is being contested.
The second is personnel and process. Trade agreements of this kind are closed by the agency that carries the pen. If USTR resumes leading the Mexican file in public appearances after the election, an agreement is likely in prospect. If Commerce takes a more visible role, the probable outcome is a narrower technical arrangement focused on quotas and verification rather than on rates.
The third is Mexican domestic positioning ahead of the January consultations. Sheinbaum has conditioned any agreement on consistency with Mexican constitutional requirements and on employment protection, and the scope of the consultation Mexico opens in January will indicate how much room her government believes it has.
None of these is a substitute for the announcement itself. But in a negotiation that has been described as close for two months, the observable process is more informative than the statements.
Outlook
The most probable sequence is that the negotiation resumes after November 3 and concludes in some form before Mexico’s January consultations, because both governments need a settled tariff baseline to conduct the USMCA review productively.
The principal uncertainty is the depth of any cut. The reported internal objection was to magnitude rather than to the existence of an agreement, which suggests a landing zone above Mexico’s stated target. A vehicle rate in the high teens, a metals reduction that falls well short of the 50 percent to 15 percent move Mexico has sought, and a narrower derivative carve out than Mexican industry wants would all be consistent with the positions that have surfaced.
For companies on both sides of the border, the planning assumption through year end should be that current rates hold. The negotiation has been described as close since September, and it is not yet closed.