October 2026. Commerce's parts process provides a window each January, April, July and October for manufacturers to ask that more part categories be added to the 25% parts tariff. No notice for the October window had been published as of this review. A window can widen the list of taxed parts; it cannot change the rate. Federal Register, Sept 17, 2025

Date unset. US-Mexico talks on autos, steel and aluminum. Mexican officials told Automotive News on Sept 30, 2026 that negotiators are working to cut the US tariff on Mexican light vehicles from 25% to 15%; a round scheduled for that week was postponed and nothing is signed. The same talks carry the US proposal to lift USMCA's regional content threshold from 75% to 82%.

Jan 1, 2027, claimed. Trump said on Truth Social on Aug 24, 2026 that tariffs on Canadian cars, trucks, parts and steel would rise to 50% on this date. No proclamation or Federal Register notice implements it as of this review. If one appears, it becomes the first increase in the vehicle rate since the tariff took effect.

Sept 29, 2026. No change to the car tariff. The import ban on select Canadian goods took effect: some alcohol and dairy items, and motorcycles over 800cc. Cars, trucks and auto parts are outside its scope. Federal Register

Sept 8, 2026. No change to the car tariff. The White House imposed an import ban, rather than a duty, on select Canadian goods effective Sept 29, 2026: motorcycles over 800cc and some alcohol and dairy items. Cars, trucks and auto parts are outside its scope. Federal Register

Sept 8, 2026. No change to the car tariff. A second proclamation reshuffled the Canadian goods inside the existing 50% duty, adding all-terrain vehicles and dropping items including rock salt and cement, effective Sept 15, 2026. From that date the 50% also stacks on top of any Section 232 duty for the goods on the list. Passenger cars, light trucks and auto parts are still not on it. Federal Register; CSMS #69851916

Aug 24, 2026. Announced only. Trump said on Truth Social that tariffs on Canadian cars, trucks, auto parts and steel would rise to 50% on Jan 1, 2027, after trade talks collapsed. A social media post binds nothing at the border; see "Announced but not in effect" below.

Aug 22, 2026. No change to the car tariff. The 50% Section 338 duty on roughly 554 categories of other Canadian goods (paper, cement, plywood, furniture, cosmetics, textiles, jewelry, toys) took effect after a brief suspension, once talks toward a lower Canada-specific vehicle rate broke down. CSMS #69606660

Aug 21, 2026. No change to the car tariff. Talks to cut Canada's vehicle rate from 25% to 15% collapsed. The 15% rate never took effect and the 25% rate kept applying throughout.

Aug 18, 2026. No change to the car tariff. The White House suspended the 50% goods duty for three days, citing a Canadian commitment to remove its own discrimination against US vehicle exports. Proclamation 11056

Jul 20, 2026. No change to the car tariff. The White House imposed the original 50% duty on the Canadian goods list, citing Canada's own 25% tariff on US-built vehicles as the discrimination it offsets. The proclamation's text exempts anything already taxed under the Section 232 auto tariff, which is why vehicles and parts are absent from the list. Proclamation 11048

May 2026. Parts rate cut for Taiwan. Taiwanese auto parts moved from 25% to 15% in total under a US-Taiwan investment agreement. Taiwanese vehicles were not included. Federal Register

May 1, 2026. Announced only. Trump said he would raise the tariff on EU cars and trucks from 15% to 25%. No implementing document followed, and the 15% EU rate is still in the tariff schedule.

Jan 26, 2026. Announced only. Trump posted that South Korean cars would go back to 25%. No implementing document followed, and the 15% Korea rate is still in the tariff schedule.

Dec 4, 2025. Rate cut for South Korea. Korean vehicles and parts moved to 15% in total, backdated to Nov 1, 2025. Federal Register

Nov 1, 2025. New tariff on medium and heavy trucks. A separate Section 232 tariff put 25% on medium and heavy trucks and their parts and 10% on buses. Passenger cars and light trucks were unaffected. Proclamation 10984

Sept 25, 2025. Rate cut for the EU. EU vehicles and parts moved to 15% in total, backdated to Aug 1, 2025. Federal Register

Sept 16, 2025. Rate cut for Japan. Japanese vehicles and parts moved to 15% in total. Federal Register

Jun 30, 2025. Rate cut for the UK. Up to 100,000 UK vehicles a year moved to 10% in total, with UK parts at 10%. Executive Order 14309

USMCA vehicles pay 25% on non-US content only. CBP calculates the tariff on the vehicle's value minus its documented US content, so the sticker price is the wrong base. The importer submits and verifies a US-content figure for each model. More US content means a smaller bill; less means something close to the full 25%. Federal Register, May 20, 2025

USMCA-qualifying auto parts are fully exempt from the parts tariff, for now. Proclamation 10908 calls the exemption temporary: Commerce is expected to replace it with a narrower rule that, like the vehicle rule, applies only to a part's US-origin content. Commerce has not issued that rule.

The country deals set a total, not an add-on. For the EU, Japan and South Korea, 15% is the whole duty on a car or part. Where a product's ordinary duty is already 15% or more, no Section 232 tariff is added at all.

A quarterly process can add parts to the tariff's scope. Commerce opened recurring submission windows (January, April, July, October) for manufacturers to request that specific parts be added to the 25% list. It widens what is covered; it never moves the rate, and it has nothing to do with the Canada dispute. Federal Register, Sept 17, 2025

A parts offset softens the tariff for US assembly. Automakers can offset part of their parts tariffs with a credit worth 3.75% of the sticker price of each vehicle they assemble in the US, now extended through April 30, 2030. Federal Register, Jul 29, 2026

Medium and heavy trucks have their own tariff: 25% on trucks and their parts and 10% on buses since Nov 1, 2025, with a similar USMCA content rule. Proclamation 10984

Cars and auto parts stay off the Canada Section 338 list. Proclamation 11048 originally excluded anything already under a Section 232 duty. Since Sept 15, 2026 the 50% stacks on top of Section 232 for the goods the list names, which include some small off-road vehicles and motorcycles but no passenger cars, light trucks or auto parts. CSMS #69851916

Other 2026 tariffs exempt cars and parts. The temporary 10% Section 122 surcharge (Feb 24 to late July 2026) and the Section 301 tariffs that took effect Jul 24, 2026 both exclude goods covered by the Section 232 auto tariff. Proclamation 11012; USTR notice, Jul 28, 2026

A 50% rate on Canadian vehicles, trucks, parts and steel from Jan 1, 2027. Trump announced it on Truth Social on Aug 24, 2026, after trade talks with Canada broke down; outlets including CNBC reported it. No Federal Register notice or presidential proclamation implements it as of this review. Enacted as described, it would double the current 25% rate for Canadian-origin vehicles, parts and steel.

A 25% rate on EU cars and trucks. Trump said on May 1, 2026 he would raise it from 15%, then gave the EU until July 4 to finish its side of the deal, which the EU approved in June. No implementing document was issued, and the tariff schedule still carries the 15% EU rate.

A 25% rate on South Korean cars. Trump posted on Jan 26, 2026 that he would raise it from 15%. No implementing document followed; the 15% Korea rate is still in the tariff schedule.

A 15% rate on Mexican light vehicles. Under negotiation, according to Mexican officials quoted by Automotive News on Sept 30, 2026, who put the effective rate at 10% to 12% once the US-content deduction applies. Not signed.

A US-Canada deal cutting the Canada-specific vehicle rate from 25% to 15%. Reported as close to signed in mid-August 2026, with a side dispute over whether the content credit should count US content only or all North American content. Talks collapsed on Aug 21, 2026 and nobody signed. The 25% baseline, with its existing US-content deduction, applied the whole time.

A US proposal to raise USMCA's regional content threshold from 75% to 82%, with a 50% US-specific floor. Raised in bilateral US-Mexico talks that opened in June 2026, separate from the treaty-wide USMCA joint review. Still unresolved; a round scheduled for late September 2026 was postponed. No new threshold has taken effect.

Where a car is built decides its tariff. Cars from the EU, Japan and South Korea pay 15%, UK cars within the quota 10%, and most other imports 25%. Those rates have been in place since 2025, so a price rise on one of those cars this year did not come from a new tariff action on this page.

A car assembled in Canada or Mexico is not taxed less by default. Its exposure depends on the manufacturer's documented US-content share, which varies by model and rarely reaches a window sticker.

The Canada dispute you read about this year, including the 50% duty, the three-day suspension and the September import ban, taxes paper, cement, textiles and similar goods. It has not changed what a car or truck costs at the border.

Open threads that could change prices: the claimed Jan 2027 jump to 50% on Canadian vehicles, the announced but unimplemented 25% rates for EU and Korean cars, and a possible 15% rate for Mexican vehicles. None is in effect as of this review.

Beer and Plywood Get Hit at Midnight. Cars Are Why There's No Deal. (Aug 18): how the 50% goods duty came to be justified by a vehicle dispute it does not tax.

Canada's Tariff Lands at 15%, Tentatively. One Undecided Rule Halves the Bill. (Aug 20): the content-credit math behind the 15% deal. Talks collapsed the next day and the rate never took effect.

Trump's 50% Canada Tariff Would Tax Toyota and Honda Most of All (Aug 25): which brands build in Canada, and what a 50% rate would cost them if it is ever enacted.

White House Wants 82% Content in USMCA. Canada Wasn't Invited. (Jun 2): the regional content threshold ask, still unresolved.

Three Tariff Clocks, One Cliff: Auto's July Converges on the 24th (Jul 5): the USMCA review and Section 301 timelines that frame everything above.