Canada-US Trade Deal Collapse Leaves 50% Tariffs and a Standoff

From "we have a deal" to a trade war in four days

In late August, the United States and Canada appeared to be close to a trade agreement. Within a week the talks had collapsed. Seven weeks later, the two countries are still in a tariff war that neither side is in a hurry to end. How the "very good" deal fell apart says less about any one sticking point than about how far apart Washington and Ottawa now are on what their economic relationship should be.

On the Tuesday of the deadline week, President Donald Trump paused his threatened tariffs for three days and posted that the two sides "have a DEAL!"2 He said he had a "very good conversation" with Prime Minister Mark Carney. He also claimed that Canadian tariffs on American farm goods would be "eviscerated down to zero." Asked about relief on Canadian steel and aluminum, he was less specific.1 The BBC reported that Trump called the emerging agreement "very good" for both countries.7 Even on Friday, hours before the talks failed, Trump said he still thought a deal could be reached.10

It was not. Minutes before the midnight deadline on Friday, August 21, Carney suspended negotiations and called his team home. He said "last-minute changes" in the American terms were "unfair, uneconomic" and "called into question the reliability of any deal."8 At 12:01 a.m. on Saturday, 50% U.S. tariffs took effect on goods ranging from hockey sticks to wine.1

Two incompatible accounts of the collapse

Each government tells the story in a way that puts the blame on the other. U.S. Trade Representative Jamieson Greer said Canada had "declined to finalize the trade deal under the terms agreed earlier this week." He said Canada's "new demands and walk backs" had upset a careful balance, even though the U.S. had offered Canada "the best treatment of any major exporter to our market."1 Greer also said Washington had offered significant tariff cuts on steel, aluminum, autos and lumber, but he gave no figures.2

Carney's version is more detailed, and that matters. He said the U.S. side wanted to limit the auto tariff relief to cars, leaving out medium and heavy trucks. He said American negotiators tried in the final hours to restrict Canada's ability to sign trade deals with other countries. He also said they pushed to limit Canada's protections for its language and culture.2 His shortest summary was that the Americans "asked too much and offered too little."1 In a later address, he said U.S. demands would have undermined Canada's auto, steel and forest-products industries, and that Washington wanted "dependency, not a true economic partnership."15

Neither account can be fully checked, and reporting on the expected terms does not line up. Reuters, cited by DW, reported that the deal would have cut U.S. tariffs on Canadian vehicles from 25% to 15% and halved steel and aluminum duties to 25%.9 The BBC reported the same numbers.7 NBC, citing Bloomberg, said American negotiators had agreed to cut both car and metals tariffs from 25% to 15%.2 This is more than a footnote. If the main concessions were still unsettled days before the deadline, then Trump's "we have a deal" was always closer to a framework than a finished text.

Our reading is that Carney's list of late demands is more specific and more consistent with the record than the vague U.S. charge of Canadian "walk backs." The USTR's own description of the deal included "economic security commitments" and "digital trade alignment."1 That broad scope fits Carney's complaint that the talks had grown beyond tariffs into sovereignty and other trade relationships. Still, Ottawa has not released its texts, and its spokespeople have repeatedly declined to give NBC more detail.2

What Canada had offered

Carney said publicly what Canada had been willing to give up. Ottawa would have dropped its remaining retaliatory tariffs on steel, aluminum and autos if Washington cut its own tariffs to levels where Canadian exports made economic sense. It would also have encouraged the provinces to put American alcohol back on store shelves.4 He said Canada would have made administrative changes to its dairy supply-management system without dismantling it.29 These are real concessions in Canadian politics. They also set a clear limit: Ottawa was willing to trade tariffs for tariffs, but not policy independence.

The legal weapon: a never-used 1930 statute

The Section 338 tariffs are unusual. They rely on a provision of the Tariff Act of 1930 that lets the president impose duties of up to 50% on countries found to discriminate against U.S. commerce. A UBS economist noted that it had never been used before, so there is no court precedent.1 Washington turned to it after the Supreme Court struck down many of Trump's emergency tariffs under the International Emergency Economic Powers Act earlier in 2026. That ruling led to a temporary 10% global tariff that largely exempted USMCA-compliant Canadian goods.5

USMCA compliance is no shield against Section 338, which is why these tariffs hurt more than their size suggests. About 80% of Canada's U.S.-bound shipments have entered duty-free under USMCA exemptions. The new levies remove that cushion for the goods they cover.17 Carney has called the tariffs a "direct violation" of the pact Trump signed in his first term, and NBC expects a court challenge.2

The dollar amounts differ between outlets mainly because of currency. U.S. coverage puts the affected goods at about US$20 billion.2 Ottawa says C$28 billion.8 That works out to about 5% of Canadian exports.3 Oil, gas and potash are exempt.1 The narrow coverage is deliberate. It puts pressure on politically sensitive sectors such as dairy, spirits and wine while sparing the energy that American refiners depend on.

Retaliation, then retaliation against the retaliation

Canada's counter-tariffs took effect on September 8. They apply rates of 15%, 25% and 50% to about C$27.6 billion of U.S. goods, and Canada's steel and aluminum duties doubled to 50%.13 Reports disagree on how many products are covered. Some put the list at more than 700.12 The Globe and Mail counted 629 items.21 The New York Times reported that Canadian officials chose many targets because they are produced in states that voted for Trump.15

Washington escalated the same day. Trump ordered bans on imports of some Canadian alcohol, whey, molasses and large motorcycles. He added 50% tariffs on cheeses, furniture, paper and aluminum products, and dropped a few items such as cement.21 He also told the General Services Administration to remove Canadian-origin products from federal procurement schedules,18 and threatened Bombardier's access to the U.S. market.18 The bans took effect on September 29 and cover nearly $1 billion of goods, about 87% of it alcohol.25

The sums are small next to roughly $880 billion in annual two-way trade,25 but they are growing. Ottawa has also warned of possible targeted retaliation if Trump goes ahead with threatened 50% tariffs on Canadian cars, trucks, parts and steel starting January 1.13 A Globe analysis estimated that Canada's effective tariff rate on U.S. imports could rise from about 0.2% to 3.8%, the highest since the 1980s.21

The economic and political ledger

The estimated costs are meaningful but not devastating, which helps explain why the standoff continues. Economist Trevor Tombe estimated that up to 90,000 Canadian jobs could be at risk. Analysts expect a GDP hit of 0.3% to 0.6%.7 Desjardins warned of a "double shock" for Canadian brewers and distillers, who face U.S. tariffs on their exports and Canadian tariffs on imported cans and bottles.21 On the U.S. side, an Ohio manufacturer said its plans for a Canadian distribution facility have slowed.

Public opinion on both sides favors Ottawa for now. A Nanos poll for the Globe found 85% of Canadians supported rejecting the deal and 80% backed dollar-for-dollar retaliation.21 A Reuters/Ipsos poll found only 20% of Americans approved of Trump's Canada tariffs.17 Analysts warn that Carney's support could fade within months as the costs build up.17

Where things stand

Formal talks remain suspended, though officials still communicate. Trade Minister Dominic LeBlanc says detailed negotiations are not taking place but contact continues.23 Trump has predicted that Canadians will come back saying "Sir, we are sorry."24 LeBlanc answered that Ottawa will not apologize for defending Canadian workers.23 On October 8, Greer said Washington was holding to its position while staying in regular contact.27 Meanwhile, the U.S. is negotiating bilaterally with Mexico, and the USTR has opened consultations ahead of the 2027 USMCA review.27

Carney's longer-term plan is to reduce Canada's dependence on the U.S. He calls diversification "plan A," not a fallback.29 He aims to double non-U.S. trade within a decade, is pursuing a deal with India by December, and has embraced the idea of associate membership in the EU.25 He has said he will not time any escalation around the U.S. midterms.23

The most likely outcome, in our view, is a long stalemate. One trade lawyer expects it to last months rather than weeks, because the damage so far is not large enough to force either side back to the table.25 The "very good" deal failed because Washington tried to secure commitments on sovereignty along with tariff cuts, and Ottawa decided that some tariffs were a better outcome than becoming more dependent on the United States.