Canada has imposed retaliatory tariffs of up to 50% on nearly $20 billion worth of U.S. goods, adding fresh pressure to one of the world’s most deeply integrated cross-border trading relationships.
The measures came into force shortly after midnight Tuesday and cover approximately C$27.6 billion ($20 billion) in U.S. imports. Tariff rates range from 15% to 50%, broadly mirroring the duties President Donald Trump imposed on Canadian products after trade negotiations between Washington and Ottawa broke down in August, according to the CBC.
Hundreds of American products are affected by the new Canadian measures, including steel, aluminum, clothing, furniture, dairy products, household appliances and industrial equipment.
Some products face the highest 50% rate, including U.S. milk, golf clubs, steel, aluminum, jackets and T-shirts. Cheese, toilet paper and certain air conditioners are subject to 25% duties, while forklifts and industrial molds are among the products facing a 15% tariff, according to the BBC.
For manufacturers, retailers and transportation providers, the new duties add another layer of cost and uncertainty to freight moving between the two countries. The scale of that exposure is significant: U.S.-Canada trade reached nearly $900 billion in 2025.
Canada’s latest tariffs cover around 8% of its imports from the United States. Steel, aluminum and furniture manufacturing are expected to be among the industries most heavily affected, while printing, paper, pulp, clothing and textiles also face substantial exposure.
The Canadian response follows Trump’s decision to impose 50% duties on approximately $20 billion in Canadian imports after negotiations between the two governments collapsed.
Prime Minister Mark Carney has characterized Ottawa’s approach as “dollar-for-dollar,” with the government seeking to put pressure on Washington while attempting to contain the impact on Canadian businesses and consumers.
That balancing act has already resulted in changes to the tariff list. Fresh fish and lobster were initially included among the targeted products but were subsequently removed following objections from Canada’s seafood industry. The episode underlines how closely connected the supply chains of the two countries remain.
Businesses prepare for higher costs
Canadian business organizations are warning that the latest escalation could further increase costs for companies already dealing with U.S. tariffs.
The Canadian Federation of Independent Business said roughly 40% of its small-business members that export goods are currently selling products affected by U.S. tariffs of 50%. The organization expects Canada’s retaliatory measures to hit an even larger proportion of its membership.
The CFIB has warned that the widening trade dispute could increase both economic uncertainty and prices. It is calling on Ottawa to expand assistance for small businesses facing the effects of the tariffs.
Economists have also cautioned that Canadian companies and consumers could ultimately face higher prices, as duties are collected on U.S. products entering Canada.
Ontario and Quebec may be particularly vulnerable because both provinces have large concentrations of manufacturing activity and are heavily dependent on trade with the United States.
The Canadian Chamber of Commerce has meanwhile urged Ottawa to keep its retaliation targeted.
“Businesses understand retaliation but don’t want to see endless escalation,” Candace Laing, the chamber’s president and CEO, said in a statement cited by the BBC. She added that companies are preparing for the dispute to persist.
Washington considers its next move
The dispute could escalate further.
U.S. Trade Representative Jamieson Greer said Tuesday that Washington could consider additional retaliatory tariffs on Canadian goods. Greer and Canadian Trade Minister Dominic LeBlanc were expected to speak Tuesday to discuss the potential U.S. response and the next steps, according to Radio-Canada.
Trump has also threatened to prevent Canadian aircraft manufacturer Bombardier from selling planes in the United States unless the company shifts manufacturing south of the border, according to the Associated Press.
Bombardier has responded by emphasizing the depth of its American supply chain.
The Montreal-based manufacturer said it works with approximately 2,800 U.S. companies across 47 states. Its American supplier network includes companies producing business-jet wings in Texas and flight-control components near Los Angeles.
Bombardier said its U.S. operations and supply chain support tens of thousands of jobs.
Why it matters: The latest tariffs could alter sourcing decisions and freight flows across the U.S.-Canada border while increasing costs for manufacturers, importers and other businesses operating within the highly integrated North American supply chain.
