Canada's counter-tariffs go live on $28 billion of US goods as Trump targets Bombardier

Canada's retaliatory tariffs on about CA$27.6 billion of United States goods came into force at 00:01 on 8 September, after a weekend in which Ottawa and Washington held no talks. Prime Minister Mark Carney's office said there had been no last-minute contact. President Donald Trump spent the same hours posting insults about Canada and threatening to stop Montreal-based Bombardier from selling jets in the American market unless the company builds them there.

The new Canadian surtaxes sit at 15 percent, 25 percent or 50 percent across nearly 900 tariff lines. Finance Minister Francois-Philippe Champagne described the package as dollar-for-dollar and rate-for-rate against the 50 percent Section 338 duties the United States applied to roughly US$20 billion of Canadian exports from 22 August. Those American duties followed the collapse of talks on 21 August, when Carney said U.S. negotiators had tabled last-minute demands Ottawa would not accept.

Steel and aluminium, and most of their derivatives, now face a 50 percent Canadian surtax, matching the rate Washington charges on those metals from Canada. Paper products, selected textiles and apparel, certain furniture and lighting, and some electronics, including smartphones, also sit in the top band. Dairy inputs such as milk powder, whey and casein are in that group. Appliances, agricultural equipment, some seafood and cheese take 25 percent. A thinner 15 percent line covers other electronics and tools. Officials told reporters the list also reaches prepared foods, perfumes and toiletries, plastics, lumber, wood pulp, carpets, hand tools, machinery, rail engines, motorcycles and gaming equipment.

CUSMA-originating goods keep an exemption on some existing lines. The new list still adds to older Canadian surtaxes on U.S. steel, aluminium, steel derivatives and motor vehicles. The motor-vehicle surtax stays at 25 percent. Ottawa had already published the retaliation after the August breakdown and then waited until 8 September so importers could reroute cargo and apply for remissions where those exist.

Trump's Bombardier threat arrived on Truth Social on 7 September, hours before the Canadian clock started. "NO MORE SELLING BOMBARDIER IN THE UNITED STATES! Their products aren't good enough!" he wrote. A second post said that if the company wanted the American market it "must build here, and stop treating America like a 'piggybank.'" The White House issued no formal rule. The Federal Aviation Administration has already certified the aircraft in question. How a social-media ban would be enforced on deliveries already approved remains unanswered.

It is the second time this year Trump has named Bombardier. In January he said the United States was decertifying Global Express business jets and threatened 50 percent import tariffs on Canadian-made aircraft until Canada's regulator certified several Gulfstream models. Neither step happened. Canada later certified those Gulfstream types. Five days before the latest post, Trump told reporters in the Oval Office that the first threat had begun as a favour for a wealthy friend who could not buy a Gulfstream in Canada.

More than half of Bombardier's revenue comes from the United States. The company did not issue a public reply in time for the first cycle of coverage. Trump also said Canada blocks Gulfstream from doing business north of the border. That claim sits against the February certifications. He has separately floated renaming Lake Ontario "Lake America" and warned that tariffs on Canadian cars, trucks, parts and steel could rise to 50 percent on 1 January 2027 unless production moves south.

The goods now taxed in Canada are the ones American plants actually ship north: appliances for households, paper for printers, farm machines for Prairie buyers, electronics for retailers. Canadian steel users already pay more for U.S. metal. The Alberta honey sector, which sends about 70 percent of this year's exports to the United States and now faces a 50 percent American duty from 22 August, is on the other side of the same ledger. Ottawa's counter-tariffs do not reopen that market. They raise the price of selected U.S. goods inside Canada while Champagne's office prepares a support package for workers and firms hit by the American list.

Carney walked away on 21 August. Trump's 50 percent tariffs on Canadian goods took effect the next day. Canada published its matching list and set 8 September as the start date. No negotiating session filled the gap. The two governments now tax each other's metals at 50 percent, keep auto duties in place, and argue in public about a jet maker whose certification file is already closed. The next scheduled American escalation on vehicles is 1 January. Until then the working fact is simpler. The border that carried the densest two-way goods trade in the world now carries two published tariff books, and both are live.