TJ Madsen is among the founding members of the New Herald Tribune and chairs the editorial board. He worked for national syndicated newspapers in Newark, Philadelphia, and Baltimore before moving to the midwest.
September 6 , 2026
WASHINGTON — President Donald Trump announced Sunday that the United States would impose a 70% tariff on Canadian dollars entering the American financial system, dramatically escalating an already strained trade relationship with Canada.
The measure would represent an unprecedented expansion of the trade dispute beyond tariffs on physical goods. Trump said the policy was intended to address what he described as an unfair currency advantage enjoyed by Canada.
“This is about fairness,” Trump said in remarks at the White House. “For years, the United States has been treated unfairly, and we are going to correct that.”
Canadian Prime Minister Mark Carney rejected the proposed measure, calling it an attack on the country's economic sovereignty and warning that Ottawa would respond if Washington attempted to interfere with Canadian currency transactions.
“We will defend Canadian workers, Canadian businesses, and the Canadian dollar,” Carney said.
The announcement comes as relations between Washington and Ottawa are already under considerable strain. The United States imposed tariffs of up to 50% on a broad range of Canadian products in August, while Canada has announced retaliatory tariffs on selected U.S. goods beginning Sept. 8.
Economists would likely face an immediate question over how such a policy could work in practice. Unlike an imported physical product, a currency is an asset traded continuously through financial markets. A 70% charge on transactions involving Canadian dollars could sharply increase the cost of cross-border payments and potentially disrupt banks, businesses and investors.
The Canadian dollar was recently trading at roughly 72.5 U.S. cents, according to recent market data. Canada's economy remains heavily dependent on trade with the United States, which accounted for more than 66% of Canadian exports in July. Canada remains heavily reliant on U.S. trade, although the year-to-date U.S. export share has decreased to 68% from 73%. With the imposition of new U.S. tariffs, further strain on Canadian exporters is anticipated. Meanwhile, the Canadian dollar appreciated slightly to C$1.3792 per U.S. dollar (72.51 U.S. cents).
U.S. businesses with Canadian suppliers could also face higher costs. Industries that depend heavily on cross-border commerce, including energy, manufacturing, agriculture and retail, would be particularly exposed.
The announcement would add another layer to an increasingly complex dispute. Canadian officials have already prepared countermeasures covering hundreds of U.S. products, including steel, dairy, appliances, agricultural equipment, pulp and paper and electronics.
Financial markets would be expected to closely monitor the response from the Bank of Canada and the U.S. Federal Reserve. Analysts would also watch for possible changes in the value of the Canadian dollar, cross-border capital flows and the cost of financing between the two countries.
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