Trade talks between Canada and the U.S. have failed to produce an agreement that would have prevented new tariffs coming into force, sparking another period of tension between the historic allies.

The two governments were working toward a deal that would avoid 50 percent duties on a host of Canadian goods. Despite President Donald Trump stating this week that a “very good deal” was close to being finalized, reported disagreements over the terms on cars and alcohol, among other things, appear to have dashed hopes of any agreement.

In a statement on Friday, Canadian Prime Minister Mark Carney said that “last-minute changes in the U.S. proposed terms were unfair, uneconomic, and called into question the reliability of any deal.”

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The U.S. side, meanwhile, described the breakdown as “a missed opportunity for Canada to partner with the United States, which is the fastest growing economy in the G7.”

Canadian Prime Minister Mark Carney is greeted by President Donald Trump as he arrives at the West Wing of the White House, Tuesday, May 6, 2025, in Washington. (AP Photo/Mark Schiefelbein)Which Tariffs Are Taking Effect?

The tariffs are being imposed under Section 338 of the Tariff Act of 1930, which the Office of the U.S. Trade Representative (USTR) said permits the president to “impose duties of up to 50 percent on imports of a foreign country to offset the burden or disadvantage from a foreign country’s unequal imposition on or discrimination against the commerce of the United States.”

The duties target motor vehicles, alcoholic beverages, and dairy, and are being used “to offset Canada’s unreasonable and discriminatory measures against these products,” it said.

And the collapse in negotiations means 50 percent duties on hundreds of Canadian products together worth around $20 billion have now taken effect.

Prime Minister Mark Carney attends a housing announcement in Toronto, on Wednesday, Aug. 5, 2026.Motor Vehicles

“Canada, through discrimination against or an unreasonable and unequal imposition on U.S. auto and auto parts exports, burdens U.S. commerce but not the commerce of other countries and disadvantages U.S. commerce compared to the commerce of other countries,” the White House wrote in July.

Alcohol

Last year, several Canadian provinces banned the sale of U.S. alcohol in response to President Trump’s tariffs. Many continue to do so, creating difficulty for American merchants.

Prime Minister Carney had requested that these bans be shelved to help the negotiations with the U.S., and NBC News reports that the issue had become a key point of contention between the two sides.

The administration said that a 50 percent duty on the country’s alcohol would help to “offset the burden or disadvantage on U.S. commerce from Canada’s discrimination.”

Dairy

The U.S. had been lobbying Canada to adjust its dairy quotes to grant more access for American producers, and has accused the country of denying it the benefits “Canada affords to materially similar dairy commerce from certain other foreign countries.”

As a result, dairy products, including milk, cream, whey, caseinates, lactose and cheese ingredients have now been hit with the new 50 percent duty.

Other Targeted Products

The government’s announcements on motor vehicle and alcohol duties also cover hundreds of unrelated goods, meaning the new tariffs extend well beyond the three categories outside by the USTR.

This includes agricultural products such as seeds; food products like bakery mixes; textiles and clothing; cosmetics; furniture and household goods; electronics and machinery; diamonds; and toys.

The new duties are in addition to existing tariffs on Canadian steel, aluminum and lumber.

US President Donald Trump speaks to reporters before boarding Air Force One at Joint Base Andrews, Maryland on August 21, 2026. Trump is headed to Myrtle Beach, South Carolina to attend a campaign rally for US Senator Darline Graham. (Photo by SAUL LOEB / AFP via Getty Images)

Unlike past tariffs on Canadian goods, the U.S. has said that there will be no exemptions for those covered by the U.S.-Mexico-Canada Agreement (USMCA). However, the White House has confirmed exemptions for energy products, potash, fish, critical ⁠minerals and those already covered by Trump’s Section 232 tariffs.

The tariffs were initially meant to take effect on Wednesday, but Trump postponed this deadline for further negotiations. No further talks have yet been announced.

Canadian PM Mark Carney Vows Response

The new duties apply to around five percent of the $382 billion worth of goods the U.S. imported from Canada last year. But despite their relatively narrow impact on commerce, the tariffs have triggered a sharp response from Ottawa.

“We have recognized from the beginning that America has changed, and that we will not return to our old relationship,” Prime Minister Carney said in a statement. “Our government understood, before many, that America is altering all its trade relationships. Putting tariffs on its closest allies and charging for access to its vast market.”

View of the Gordie Howe International Bridge during the opening ceremony in Windsor, Ontario in July.

The prime minister said he would announce further support for Canadian workers businesses in the coming days.

“The prime minister has my full support for a strong response—tariff for tariff, dollar for dollar,” Ontario Premier Doug Ford posted to X. “As we fight to protect Canadian sovereignty and economic security, everything needs to be on the table. Ontario is ready to do its part.”

The Tariffs Canada Might Impose on US

Announcing the suspension of negotiations shortly before the Friday night deadline, Carney said he would impose reciprocal tariffs on US goods “dollar for dollar”.

As of Saturday, however, Ottawa has not publicly announced which U.S. products could face these new retaliatory tariffs.

Prior to the latest escalation, Canadian countermeasures were focused on sectors such as U.S. steel and aluminum, as well as certain vehicles not covered by the USMCA.

Newsweek has contacted Canada’s finance ministry and Global Affairs Canada—which manages the country’s trade relations—for further comment.

Contact Newsweek editor on this story: Edward Pearcey.