U.S. tariffs on $20 billion in Canadian goods take effect; Canada announces matching retaliation for September 8

The United States imposed 50% tariffs on $20 billion of Canadian products effective 12:01 a.m. ET on Saturday, August 22, 2026, after trade negotiations between the two countries collapsed Friday night. Hours after the tariffs took effect, Canadian Prime Minister Mark Carney announced that Canada would respond with matching retaliatory tariffs to take effect on September 8, the Tuesday after Labour Day.

The tariff escalation marks a major breakdown in last-minute negotiations aimed at averting a trade war between the countries. According to NPR's reporting, the two nations had been working toward a deal through the end of the week, but discussions fell apart before the midnight deadline.

According to ABC News, the U.S. tariffs targeted dozens of products including dairy products, alcoholic beverages, cement, and hockey equipment. The tariffs applied to products compliant with the United States-Mexico-Canada Agreement (USMCA), though significant exemptions left out some top Canadian imports such as oil, gas and potash, per ABC News. U.S. Customs and Border Protection issued a bulletin to businesses Friday warning that officers would ensure importers complied with the new rates starting immediately after midnight, according to NPR.

In response, Carney said Canada would match the U.S. action "dollar for dollar" with its own tariffs. According to NPR's reporting, Canadian retaliatory tariffs will focus on American sectors including steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics.

In a statement on social media, Carney said important progress had been made in recent weeks toward "improving Canada's position as having the best deal in the world with the U.S.," but that progress did not meet Canada's objectives. Carney blamed the U.S. for the collapse, stating "Last-minute changes in the U.S. proposed terms were unfair, uneconomic, and called into question the reliability of any deal." At a Saturday press conference, per ABC News, Carney identified sticking points including "changes by the U.S. over its levels of tariffs on automobiles that he claimed would have hurt Canada's economy over time," and stated "They asked too much and offered too little."

U.S. Trade Representative Jamieson Greer offered a different account of the breakdown, per NPR. Greer said Canada had "declined to finalize the trade deal under the terms agreed earlier this week" and that "new demands and walk backs of other commitments by Canada have upended the careful balance reached in the past days." According to Greer, the United States had earlier this week agreed to provide Canada "significant tariff reductions on steel, aluminum, autos, and lumber." The U.S. offer would have included "supply chain coordination on aerospace, complementary actions to address unfair trade practices, critical minerals cooperation, increased enforcement against imports produced with forced labor, and the announcement of formal U.S.-Mexico-Canada Agreement (USMCA) negotiations," per Greer's statement to NPR. Greer also stated that "Canada is continuing to maintain its prolonged retaliation against the United States, including, among other things, flat-out prohibitions on certain American goods and services."

Earlier this week, per ABC News, Trump had suggested the deal might include the Keystone XL Pipeline, stating "Keystone XL Pipeline, long ago killed by Sleepy Joe Biden, may be awoken from the grave!" Trump also claimed that as part of a preliminary deal, Canadian tariffs on American agricultural goods would be "non-existent," stating "The tariffs will be non-existent for our farmers. Our farmers were paying tremendous tariffs into Canada. And those tariffs are going to be totally eviscerated down to zero." According to ABC News, Trump had earlier this week claimed the U.S. had reached a preliminary deal to resolve the dispute with Canada, and had pushed back a previous tariff deadline just days before this one to allow time for negotiations.