Trump says he is cutting off trade talks with Canada

US President Donald Trump has said he is cutting off trade talks with Canada “immediately” as the country looks to start enforcing a tax policy targeting big tech companies.

The latest move, which he announced on social media, comes as the neighbouring nations had been working to agree a trade deal by mid-July.

Both countries have imposed tariffs on each other’s goods after Trump sparked a trade war earlier this year and threatened to annex Canada using “economic force”.

On Friday, the US president said he was ending talks due to what he called an “egregious tax” on tech companies and added he would announce new tariffs on goods crossing the border within the next week.

“We are hereby terminating ALL discussions on Trade with Canada, effective immediately,” he wrote on social media.

“We will let Canada know the Tariff that they will be paying to do business with the United States of America within the next seven day period.”

In brief comments to reporters, Prime Minister Mark Carney suggested that talks would continue.

“We will continue to conduct these complex negotiations in the best interest of Canadians,” he said.

Canada’s 3% digital services tax has been a sticking point in its relationship with the US since the law was enacted last year. The first payments are due on Monday.

Business groups estimate it will cost American companies more than $2bn a year.

Canadian officials had said they expected to address the issue as part of trade talks with the US.

There were hopes that the relatively warm relationship that newly-elected Carney has forged with Trump might help those negotiations.

The president’s latest move casts doubt on a future deal, though Trump has often used social media threats to try to gain leverage in talks or speed up negotiations he sees as stalling.

Last month, for example, he threatened to ramp up tariffs on goods arriving to US shores from the European Union, only to climb down a few days later.

Candace Laing, chief executive of the Canadian Chamber of Commerce which has been critical of the digital services tax, said that “last-minute surprises should be expected” as the deadline for a deal approaches.

“The tone and tenor of talks has improved in recent months, and we hope to see progress continue,” she added.

The US is Canada’s top trade partner, buying more than $400bn in goods last year under a longstanding free trade agreement.

But Trump hit that trade with a new 25% tariff earlier this year, citing concerns about drug trafficking at the border.

New US tariffs on cars, steel and aluminium have also scrambled relations. Car parts, for example, cross US, Mexican and Canadian borders multiple times before a vehicle is completely assembled and such import taxes threaten supply chains.

Trump later carved out exemptions for some goods in the face of widespread alarm from businesses in both the US and Canada, which has hit back with tariffs of its own on some US products.

Shares in the US fell on Friday after Trump said he was cutting off talks, but later bounced back with the S&P 500 closing at a record high.