Trade relations between the United States and Canada have sharply deteriorated after US President Donald trump announced a 50 per cent tariff on a broad range of Canadian imports, accusing Ottawa of unfair trade practices against American automobiles, dairy products and alcoholic beverages.
The new duties, unveiled through an executive action on Monday, are expected to take effect in 30 days and mark one of the most significant escalations in the long-running trade dispute between the two North American neighbours. The tariffs will apply to a wide range of Canadian consumer and industrial goods, including wine, hockey sticks and cement. However, several of Canada’s major exports—including energy products, potash, critical minerals and fish—have been exempted from the measures.
Responding to the announcement, Canadian Prime Minister Mark Carney said his government was prepared to intensify negotiations with Washington in an effort to resolve the dispute before the tariffs come into force. In a statement posted on X, Mr. Carney criticized the latest action as another unilateral move by the United States, arguing that it violated the spirit of the Canada-United States-Mexico Agreement (USMCA).
“This is the latest in a series of unilateral US trade actions that began with the US imposing a series of tariffs in direct violation of the Canada-United States-Mexico Agreement,” he said. Mr. Carney also referred to what he described as continuing threats to Canada’s sovereignty, an apparent reference to President Trump’s repeated remarks suggesting that Canada should become America’s 51st state.
The latest measures further deepen trade barriers already imposed by both countries. The United States currently maintains tariffs ranging from 15 to 50 per cent on Canadian steel, aluminium and copper, alongside a 35 per cent tariff on Canadian softwood lumber and a 25 per cent duty on non-US vehicle parts.
Canada, in turn, has imposed 25 per cent counter-tariffs on selected American imports, including steel, aluminium and motor vehicles, after retaliating against earlier US trade measures introduced last year. A White House fact sheet said the new tariffs would apply regardless of whether products qualify for preferential treatment under the USMCA, signaling a significant departure from the free trade framework negotiated during President Trump’s first administration.
The White House justified the decision by citing what it described as discriminatory Canadian trade policies in three key sectors. On automobiles, the administration argued that Canada unfairly taxes imports of US-made vehicles and parts that fall outside the USMCA framework while offering more favorable treatment to imports from other countries.
Washington also renewed long-standing criticism of Canada’s dairy supply management system, which restricts foreign dairy imports through quotas and imposes tariffs of up to 300 per cent on products exceeding those limits.
Another major grievance relates to the continued boycott of American alcoholic beverages by most Canadian provinces. The restrictions were introduced last year in response to previous US tariffs, with provincial governments maintaining they will only be lifted once Washington removes duties on key Canadian exports.
Ontario Premier Doug Ford called for a firm response, urging Ottawa to match any US measures with equivalent tariffs. “If these tariffs proceed, Canada should respond tariff for tariff, dollar for dollar,” he wrote on X.
The announcement comes despite an earlier ruling by the US Supreme Court, which struck down many of President Trump’s global tariffs imposed under the International Emergency Economic Powers Act (IEEPA), finding that the administration had exceeded its authority under legislation intended for national emergencies.
Unlike those earlier measures, the latest tariffs have been imposed under Section 338 of the Tariff Act of 1930, an infrequently used provision that allows the United States to respond to alleged discriminatory trade practices by foreign governments. The legal basis has not yet been tested in court.
Trade experts say the move represents a significant shift in North American trade policy.
Michael Devereux, an economics professor at the University of British Columbia, described the tariffs as a direct challenge to the USMCA, noting that they target products that were previously protected under the trade agreement negotiated and signed by President Trump in 2018.
While some analysts believe the tougher stance could be intended to pressure Canada into new negotiations, others warn it risks triggering another round of retaliatory measures that could disrupt integrated supply chains and increase costs for businesses and consumers on both sides of the border.
Business groups have already urged both governments to return to the negotiating table before the new tariffs take effect, warning that prolonged trade tensions could undermine one of the world’s largest bilateral trading relationships.
Philbert Amiba Ayuusah.