A threatened 50 percent US tariff on Canadian-built cars, trucks and auto parts is set to take effect January 1, 2027, and negotiators say they remain far from a deal to stop it.
US Trade Representative Jamieson Greer told reporters at the G20 Trade Ministerial in Milwaukee that there are still “a handful of outstanding issues that are quite difficult to resolve.”
What is at stake
Trump’s tariff threat would double top-line U.S. tariffs on Canadian auto imports, which currently sit at 25%. The rate officials had discussed cutting to 15% before talks collapsed in August.
President Trump said in a social media post that the U.S. will impose a 50% tariff on all Canadian automotive and steel imports, effective Jan. 1, 2027, after trade talks between the two nations collapsed.
The current 25 percent duty stems from Section 232 of the Trade Expansion Act, and automakers have been absorbing much of that cost rather than passing it directly to buyers, a dynamic covered in GCN’s look at how GM heads into Q3 earnings after raising its 2026 guidance twice.
Trade talks have been frozen since trade negotiations between the two countries broke down in August, and Canada responded with its own counter-tariffs.
Imported Canadian steel already faces a 50% levy.
Politicians weigh in on both sides
Conservative Leader Pierre Poilievre was in Detroit on October 13 to make a case for tariff-free trade in the auto sector.
Poilievre’s plan also includes standing firm against unfair trade practices and making it easier to buy Canadian by taking the GST off Canadian-made automobiles.
For Canada, Poilievre said his plan would mean production growing between 500,000 and 800,000 automobiles over the next 10 years in order to get duty-free access, which he said would boost vehicle production in Canada to around two million, up from the current 1.2 million.
The stakes for Canadian workers are significant. According to the Government of Canada, more than 90% of Canadian-made vehicles and 60% of parts are exported to the U.S. That puts 125,000 direct jobs at stake, and the wider auto sector supports more than 500,000 workers.
On the US side, the politics are shifting too. The trade war is solidifying itself as a major ballot-box issue in pivotal states ahead of the U.S. midterm elections, including Michigan, the heart of the U.S. auto industry. Despite having previously supported President Trump’s tariffs, Michigan Republican Senate nominee Mike Rogers called for an immediate end to the tariff war in an ad, saying “Here in Michigan, we know that Canada is not our enemy,” and “We need to end this tariff war now. As Michigan senator, I’ll bring both parties together to lower your prices.” In a debate with his Democratic opponent Abdul El-Sayed, Rogers said he wants a deal with Canada and that the current tariffs are too high.
The Milwaukee gathering of G20 trade ministers produced no breakthrough on the dispute between the U.S. and Canada.
Why USMCA content rules complicate pricing
Automakers and dealers face a practical problem in pricing 2027 models because the tariff math depends heavily on how much US content a given vehicle contains.
Under current rules, if a model qualifies under USMCA, the importer can document its American content and pay the tariff only on the non-U.S. portion.
But overstating that content lets Customs apply the duty to the vehicle’s full value, retroactively.
That uncertainty leaves dealers unable to firmly quote prices on Canadian-built trucks and SUVs headed to lots next year.
Buyers shopping for vehicles built north of the border, including popular models from Ford, GM and Stellantis plants in Ontario, can check a vehicle’s origin directly, since a first character of “2” in the VIN means the vehicle was built in Canada, and NHTSA’s VIN decoder will show plant details.
A Canadian government official cautioned against assuming the threat will simply expire. International Trade Minister Dominic LeBlanc said on CBC’s Power & Politics, “Like a lot of threats we’ve seen from this administration you have to take it seriously even if it may not come to pass.”
What happens next
With Ottawa and Washington both holding firm, industry analysts expect the deadline to remain a live risk through the final weeks of the year.
The 25 percent duty is already in force, and Trump has threatened to lift it to 50 percent on Jan. 1 as retaliation for Ottawa’s counter-tariffs. A deal could still land before Jan. 1, or the deadline could shift.
For now, automakers with cross-border supply chains, including those recently expanding assembly lines covered in GCN’s report on Volkswagen’s 2027 Atlas production at its Chattanooga plant, are left planning around a tariff rate that could double in a matter of weeks, with no finalized agreement to prevent it.
