The Canada US trade talks that were meant to prevent a new wave of import duties collapsed late on Friday night, triggering a 50% tariff on roughly $28 billion worth of Canadian goods and a promise from Ottawa to retaliate in kind. According to Prime Minister Mark Carney’s official statement, those tariffs went into effect at midnight after both sides blamed each other for a breakdown that, by all accounts, nobody saw coming until the final hours.
The snippet figure of $20 billion, reported widely, conflicts with Carney’s own statement on pm.gc.ca, which puts the affected goods at roughly $28 billion. The official figure stands.
‘Canada will match those tariffs dollar for dollar to protect our workers and businesses,’ Carney said. The retaliation is not rhetorical. The Packer reports that Canadian counter-tariffs targeting US steel, dairy, appliances, agricultural equipment, pulp, paper, and electronics are scheduled to begin on 8 September 2026.
What Broke the Canada US Trade Talks in the Final Hours
The picture that emerges from multiple accounts is one of a deal that existed on paper on 18 August before unravelling almost immediately. According to CBC News, US Trade Representative Jamieson Greer told the broadcaster that Canadian Trade Minister Dominic LeBlanc returned from Ottawa after a tentative agreement was struck on that date and brought fresh requests to the table. Greer described the Canadian side’s concerns about the deal’s ‘implementation’ as the reason Ottawa ultimately walked away.
Greer’s account to CNBC‘s Squawk Box, three days after the collapse, was that the two sides had ‘found the way to a deal’ by Tuesday night, only for Canadian negotiators to ‘want more’ in the final hours. The CBC interview added that there are currently ‘no open channels’ to bring both sides back to the table. That is the detail that matters most: this is not a pause in negotiations, it is an end to them, for now.
Carney’s version is that ‘last-minute changes in the US proposed terms were unfair, uneconomic and called into question the reliability of any deal.’ NBC News reported that Canadian and US negotiators were still in the US Trade Representative’s office past 10:30pm ET on Friday before the talks finally broke down. LeBlanc had told reporters on Thursday evening: ‘We’re very close, we continue to make progress.’ Twelve hours later, talks were dead.
The US offer, as described by Greer and reported by Fox Business, included meaningful tariff reductions on steel, aluminium, autos, and lumber, alongside a broader economic and national security partnership covering digital trade, critical minerals, aerospace, and export controls. Whether that package was genuinely withdrawn or merely reframed at the last minute is precisely what the two sides dispute.
The Economic and Political Weight of the Breakdown
The new tariffs cover 5.5% of Canadian exports to the United States, according to France 24, hitting goods that range from hockey sticks and cement to wine and wood products. Critically, the tariffs do not exempt Canadian products under the United States-Mexico-Canada Agreement (USMCA), which had shielded most Canadian exports for the preceding 18 months. That USMCA shield is now gone.
The two countries traded $880 billion in goods and services last year. The broader North American trading architecture, already under strain, now faces a direct challenge. Trade groups representing the auto, agriculture, and lumber industries expressed surprise and dismay, according to Politico. Candace Laing, head of the Canadian Chamber of Commerce, called the tariffs ‘a body blow to North American competitiveness,’ adding that they would raise costs for Americans while threatening Canadian customers, investment, and small businesses.
Carney said his government would announce additional support for Canadian workers in the coming days, building on nearly $25 billion in support already delivered over the past 18 months. Ontario Premier Doug Ford backed the response: ‘Team Canada needs to stand together more united than ever before. Everything needs to be on the table.’
My read is that the political damage may outlast the economic pain. Carney’s domestic position has been strengthened by his willingness to confront Washington; a petition to expel US Ambassador Pete Hoekstra has gathered 248,000 signatures. The moment Carney flinches, that changes. He almost certainly knows it.
The next fixed date is 8 September, when Canadian counter-tariffs begin. If Greer is right that there are ‘no open channels,’ the question is not whether a deal gets done before then. It is whether both sides can live with what comes after.
