Canada’s 50% Counter-Tariffs Hit U.S. as Trump Threatens to Shut Bombardier Out of American Market

Canada’s dollar-for-dollar retaliatory tariffs officially took full effect Tuesday, September 8, targeting approximately C$27.6 billion ($20 billion USD) in American imports. The measures mark another major escalation in an unwanted trade war with the Trump administration following the collapse of negotiations aimed at preventing an increasingly damaging economic confrontation between the longtime allies.

The Canadian measures followed President Donald Trump’s decision to impose 50% duties on Canadian goods. Prime Minister Mark Carney’s government responded with its promised retaliation after negotiations in Washington failed to produce an agreement. The new tariffs came into force at midnight, significantly expanding the number of American industries and exporters caught in the cross-border dispute.

American steel and aluminum are among the most heavily affected products. Canada doubled its duties on those imports from 25% to 50%, increasing pressure on two strategically important U.S. industries. Ottawa’s retaliation also extends to hundreds of other products, transforming what began as a tariff confrontation into a broader economic battle affecting manufacturers, exporters and consumers.

Approximately 700 categories of American goods now face Canadian tariffs ranging from 15% to 50%. The targeted imports include dairy products such as cheese, along with appliances, electronics, motorcycles and cosmetics. Ottawa designed the package to maximize pressure on American exporters while attempting to prevent unnecessary disruptions to Canadian consumers and important domestic supply chains.

Canada’s tariff list was also designed to create pressure within the United States by affecting exporters in politically competitive states ahead of the upcoming midterm elections. Ottawa nevertheless made adjustments to protect Canadian interests, removing certain American seafood products from an earlier version of its retaliation while preparing a $7.5 billion assistance package for affected Canadian businesses and workers.

Carney has repeatedly portrayed Canada’s response as defensive rather than an economic confrontation his government wanted. After negotiations collapsed, he described Washington’s tariffs as a «miscalculation» intended to «hurt and divide us.» The prime minister then used considerably stronger language to characterize the dispute, declaring: «You’re at war when you get attacked. We got attacked.»

The prime minister has insisted Canada will defend its workers «dollar-for-dollar» while refusing to return to negotiations under the same circumstances. Carney said meaningful discussions can resume «when the Americans stop doing memes, stop throwing shade, stop trying to be tough and start being serious.» His tougher approach has helped rally significant domestic support behind Canada’s response.

Hours before Canada’s tariff deadline, Trump opened another front by directly threatening Canadian aircraft manufacturer Bombardier. «NO MORE SELLING BOMBARDIER IN THE UNITED STATES! Their products aren’t good enough! Over 50% of their revenue comes from the United States — They live off American Buyers, American Companies, American Airports, and American Service,» Trump wrote on Truth Social.

Trump linked his Bombardier threat to accusations that Canada unfairly restricts American businesses, including Gulfstream Aerospace. «They even blocked Gulfstream Aerospace from doing business in Canada — Completely unjust and unfair!» he wrote. Targeting Bombardier potentially expands the confrontation into aerospace, an economically important industry built around highly specialized jobs, suppliers and deeply integrated North American commercial relationships.

Trump demanded that companies benefiting from the American market increase manufacturing inside the United States. «That Era is OVER! If they want our Market, they must build here, and stop treating America like a “piggybank.” BUY AMERICAN. FLY ON AMERICAN AIRLINERS. ENJOY AMERICAN LIQUOR AND BEVERAGES. SAIL ON LAKE AMERICA. AMERICA FIRST!» he wrote.

With Canada’s retaliation now fully implemented and Trump threatening Bombardier, the dispute has moved well beyond its original tariff battle. Ottawa maintains that its measures are an unavoidable response to American pressure, while Washington continues threatening additional Canadian industries. Neither government appears ready to retreat, leaving businesses, workers and consumers facing an increasingly unpredictable economic confrontation.