Auto sector faces a tariff speed bump as US-Canada trade relations worsen

The auto sector is emerging as a key pressure point as US-Canada trade tensions escalate. While newly implemented 50% Section 338 tariffs on select Canadian goods will weigh modestly on US growth, threatened 50% tariffs on Canadian autos, trucks, and parts could have broader consequences—raising vehicle prices, squeezing industry margins, and increasing inflation risks after the midterm elections.

The newly implemented Section 338 tariffs have pushed the overall US effective tariff rate to 9.9%. Along with Canada’s planned counter-tariffs, the latest escalation is expected to trim 0.1ppt from US GDP growth next year.

Separately, President Trump has threatened 50% tariffs on Canadian autos, trucks, and car parts beginning in January 2027. If implemented, these duties could feed through more noticeably to consumer prices, as automakers and dealerships have already absorbed much of the cost of earlier tariffs and have less room to cushion another increase.

The timing of the threatened auto tariffs—shortly after the 2026 midterm elections—suggests domestic politics may currently be constraining the administration’s trade policy. A more protectionist approach after the elections could create additional inflation risks and put particular pressure on Midwestern states whose auto industries rely heavily on Canadian-made components.

Download the report for more detailed insights.