US imposes 50% tariffs on most Canadian goods
Washington is slapping a 50% duty on most Canadian imports, threatening to disrupt integrated supply chains and push US inflation higher.
The United States will impose a 50% tariff on most Canadian goods, White House officials confirmed on Monday. These sweeping duties will apply to products that were previously protected from import taxes under the United States-Mexico-Canada Agreement. The administration is exempting energy products, fish, critical minerals and potash from the new trade barriers.
An administration official, speaking on the condition of anonymity, said the tariffs are a direct response to Canada’s retaliatory measures over previous US trade actions. Trump’s official proclamations focus heavily on claims that Canada discriminates against American autos, alcohol and dairy products. For the automotive sector, the White House highlighted that Canada implemented a 25% tariff in April 2025 on US motor vehicles that do not qualify for USMCA preferential treatment.
The US president also took aim at Canada’s liquor and dairy sectors. The proclamations note that nearly all Canadian provinces and territories stopped purchasing and retailing American alcoholic beverages last year. This boycott was a countermeasure to Trump’s earlier tariffs and his political rhetoric about making Canada the 51st state.
Furthermore, Trump accused Canada of discriminating against American cheese in favor of European dairy imports. Beyond traditional trade disputes, the president has explicitly linked the economic pressure to cross-border environmental concerns. He wrote on Truth Social that the US is being “unnecessarily invaded by filthy, polluted, and unhealthy air” from Canadian wildfires.
Trump said he raised the issue directly with Canadian Prime Minister Mark Carney while they watched Sunday’s World Cup final together. “I told him, I mean, ‘You got to stop these fires from coming in and, you know, poisoning our air. Our air has been poisoned,’” Trump told reporters after the match. Carney, who won the Canadian premiership last year on a platform of resisting US pressure, has previously pushed back against the American president.
To execute the new tariffs, Trump signed three proclamations relying on Section 338 of the 1930 Trade Act. The use of this particular legal mechanism has attracted political scrutiny. Several Democratic lawmakers proposed repealing the section last year, arguing it grants the president excessive power to destabilize the economy.
The abrupt collapse of USMCA protections introduces severe uncertainty for corporate planning and cross-border supply chains. Investors are likely to price in higher inflation risks as the 50% duty hits a wide range of manufactured goods. The move marks a profound deterioration in economic relations between two historically integrated economies.
