IP Law Daily, VITAL BRIEFING—Fifty percent U.S. tariffs on Canadian imports take effect; Ottawa to retaliate, (Aug 28, 2026)
The Canadian government indicated that it would impose tariffs of up to 50 percent on imports from the U.S. starting in September, with an aim of targeting the same value of goods as impacted by the new U.S. tariffs.
In this edition of Tariff Insights, Thomas Thompson provides a summary of one of the most volatile and contentious weeks in the history of the U.S.-Canadian trade relationship, resulting in the onset of an unprecedented trade war between the two North American trading partners. Some of the developments Thompson explores in his piece include:
The Trump administration’s invocation of the long-dormant Smoot-Hawley Tariff Act of 1930 to authorize the tariffs, despite failing to satisfy the law’s requirement that the International Trade Commission first make a finding that the U.S. has been discriminated against by Canada.
A growing consensus among Canadians that the collapse of the tariff talks is an indication that the longstanding Canada-U.S. relationship has come to an end, and further confirmation for many Canadians that Canada cannot trust the Trump administration.
The Trump administration’s position, which is premised on the view that the U.S. has been the victim of clear and deliberate Canadian abuse in the realm of international trade, and that President Trump has taken action to end Canada’s free ride at the U.S.’s expense.
To read the piece, click on Fifty percent U.S. tariffs on Canadian imports take effect; Ottawa to retaliate.
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