Trump slaps big tariff on Canada, eyes hikes for others

US President Donald Trump is ramping up his tariff assault on Canada, saying the US will impose a 35 per cent tariff on imports in August and plans to impose blanket tariffs of 15 per cent or 20 per cent on most other trading partners.

In a letter released on his social media platform, Trump told Canadian Prime Minister Mark Carney the new rate would go into effect on August 1 and would go up if Canada retaliated.

In a post on X late on Thursday, Carney said his government would continue to defend Canadian workers and businesses in their negotiations with the US as they work towards that deadline.

The 35 per cent tariff is an increase from the current 25 per cent rate that Trump had assigned to Canada and is a blow to Carney, who was seeking to agree a trade pact with Washington.

An exclusion for goods covered by the United States-Mexico-Canada Agreement on trade was expected to stay in place, and 10 per cent tariffs on energy and fertiliser were also not set to change, though Trump had not made a final decision on those issues, an administration official said.

Trump complained in his letter about what he referred to as the flow of fentanyl from Canada as well as the country's tariff- and non-tariff trade barriers that hurt US dairy farmers and others.

He said the trade deficit was a threat to the US economy and national security.

"If Canada works with me to stop the flow of fentanyl, we will, perhaps, consider an adjustment to this letter," Trump wrote.

Canadian officials say a minuscule amount of fentanyl originates from Canada but they have taken measures to strengthen the border.

"Canada has made vital progress to stop the scourge of fentanyl in North America. We are committed to continuing to work with the United States to save lives and protect communities in both our countries," Carney said in his X post late on Tuesday.

The prime minister said in June that he and Trump had agreed to wrap up a new economic and security deal within 30 days.

Trump has broadened his trade war in recent days, setting new tariffs on a number of countries, including allies Japan and South Korea, along with a 50 per cent tariff on copper.

His latest salvo rattled investors anew, with US and European stock futures dipping in Asia on Friday as markets nervously awaited word on what tariff Trump would assign the European Union later on Friday.

In an interview with NBC News published on Thursday, Trump said other trading partners that had not yet received such letters would likely face blanket tariffs.

"Not everybody has to get a letter. You know that. We're just setting our tariffs," Trump said.

"We're just going to say all of the remaining countries are going to pay, whether it's 20 per cent or 15 per cent. We'll work that out now."

Canada is the second-largest US trading partner after Mexico, and the largest buyer of US exports.

Carney, who led his Liberal Party to a comeback election victory earlier in 2025 with a pledge to tackle trade challenges with the US, had been aiming to negotiate a trade deal by July 21.

In June, the Carney government scrapped a planned digital services tax targeting US technology firms after Trump abruptly called off trade talks saying the tax was a "blatant attack".