Tariffs on Canadian Goods Take Effect as Trade Talks Collapse; Investment Summit Looms

U.S. President Donald Trump's 50% tariffs on scores of Canadian imports took effect Saturday after trade negotiations crumbled at the eleventh hour, according to The Manila Times. The new levies are expected to affect about 5% of Canada's annual exports to the U.S., roughly $20 billion in goods ranging from hockey sticks to agricultural products.

The tariffs were imposed under Section 338 of the Tariff Act of 1930, and the White House published a list of affected goods that includes honey, seeds, agricultural products, makeup, perfumes, clothing, jewelry, furniture, cameras, fabric, wine, and cement. The 50% levy also applies to some products that were previously protected under the US-Mexico-Canada Agreement (USMCA).

Canada's Prime Minister Mark Carney quickly promised Saturday that his government would roll out "dollar for dollar" retaliatory measures starting September 8. Canada's retaliatory tariffs will target steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics industries.

No further trade talks are scheduled, according to The Manila Times.

Escalating Rhetoric and Economic Impact

The latest escalation between the two countries plunges them deeper into a trade war. Mark Carney said Canada takes the retaliatory step "reluctantly," and described the U.S. demands as "unfair, uneconomic," adding that they called into question the reliability of any deal. He said the U.S. made last-minute changes to the framework, including reduced tariff relief for Canadian-made vehicles, restrictions on Canada's ability to strike trade deals with other countries, and weakened protections for language, culture, and sovereignty. Carney called the demands a "power play" and a question of sovereignty, saying they were "unacceptable."

Carney also said Canada had been willing to drop remaining retaliatory tariffs on steel, aluminum, and autos if the United States substantially lowered its own, and to encourage provinces to restore U.S. alcohol sales. He summed up the U.S. final demands as: "They asked too much and offered too little."

U.S. Trade Representative Jamieson Greer accused Canada of making "new demands and walkbacks of other commitments" that upended the deal. He said the U.S. was offering to cut tariffs on steel, autos, and lumber, "things that are sensitive for them." Greer added: "We've said enough, and so we've taken countermeasures. Our interest is in protecting American workers and protecting American supply chains."

President Trump posted on social media: "Canada wants the benefits of being a State, without being one!!!" He had previously paused the 50% tariffs for a three-day period, saying Canada and the U.S.A., subject to the finalization of documents, have a DEAL. On Monday, Trump threatened to raise tariffs on Canada's auto sector on January 1, 2027.

Carney responded to the escalating tensions, saying "You're at war when you get attacked" and that Canada had been "attacked" by the new American tariffs.

Ontario Premier Doug Ford added to the rhetoric, saying Canada should pull the plug on electricity it sells to utilities on the U.S. side of the border, stating "We power 1.5 million homes and businesses" and "Everything's on the table."

Investment Summit Under a Cloud

The trade war will hang over a high-powered investment summit in Toronto three weeks from now, according to The Globe and Mail. The Canada Investment Summit on September 14 and 15 will bring together the largest gathering of top business leaders ever to assemble in the country — perhaps as many as 250, including some of the most influential names in global finance, who collectively manage more than $120-trillion.

Led by Prime Minister Mark Carney and organized with help from two of Canada's largest pension funds, it is framed as a chance to showcase Canada as a destination for foreign capital and to deliver on Ottawa's promise to attract $500-billion in new private-sector investment within five years.

Michel Leduc, chief public affairs officer at the Canada Pension Plan Investment Board, which is a co-organizer of the summit and the country's largest pension fund with $864-billion in assets, said: "If you're an investor, you will have reasonable questions" about the fallout. The Public Sector Pension Investment Board, which manages a $321-billion pension fund for the federal public service, Canadian Armed Forces, and the RCMP, is the summit's other co-organizer.

It looked last week as though Canada was close to reaching a trade deal with the U.S. that would have locked in a base level of tariffs on key sectors such as automobiles, steel, and aluminum, but also provide clarity about the country's economic outlook. Instead, Canada's near-term prospects look highly uncertain after trade talks broke down.

Broader Trade and Economic Context

Canada sends the vast majority of its goods exports to the U.S. (72% last year). The two countries traded about $880 billion in goods and services last year, according to The Manila Times. About 330,000 people and goods worth roughly $2 billion cross the U.S.-Canada border every day. In 2025, more than $380 billion worth of goods were brought over the border from Canada, ranking it as the third-highest source of U.S. imports.

Research by the Tax Foundation found that Trump administration tariffs imposed under IEEPA cost Americans an average of $1,000 per household in 2025. John Ricco of the Yale Budget Lab estimated that the new measures would push the average tariff rate on Canadian imports to about 7.6%, from roughly 5.3%.

Neel Kashkari, president of the Federal Reserve Bank of Minneapolis, said the tariff fight with Canada could extend U.S. inflation.

Augustine Lo of law firm Dorsey & Whitney said: "Nearly all industries and professions are likely to see downstream effects from this spiraling trade dispute."

Mark Carney said Canada had secured 20 new deals over the past year, including economic and security partnerships.

A Leger survey measured 56 percent support among Canadians for holding the line and not making more concessions to the Trump administration.