Trump Administration Prepares 50 Percent Canada Tariffs Under 1930 Trade Law
If no agreement is reached, the tariff action would mark one of the steepest unilateral trade measures the United States has applied to Canada under a statute that has rarely been invoked in...
The Trump administration has threatened to impose 50 percent tariffs on a broad range of Canadian imports effective midnight on August 19, 2026, according to reporting by The Hill published August 18, 2026. The White House cited what it characterized as 'discriminatory' Canadian trade measures as the basis for the action. Canada and the United States were engaged in last-minute negotiations as of Tuesday morning in an effort to avoid the tariffs taking effect.
The administration announced that the tariff authority derives from Section 338 of the Tariff Act of 1930, according to The Hill. Section 338 grants the president authority to impose additional duties on imports from countries found to discriminate against U.S. commerce. The provision has been used infrequently in contemporary trade policy, and its current invocation against Canada represents a notable application of a statute that predates modern trade agreements including the United States-Mexico-Canada Agreement, which was signed in 2020 and is on record at the Office of the United States Trade Representative.
Canada is the largest goods trading partner of the United States, with two-way trade totaling approximately 773 billion dollars in 2023, according to the Office of the United States Trade Representative's annual trade data. A 50 percent tariff applied broadly to Canadian imports would affect key sectors including automotive goods, energy products, and agricultural commodities. The specific list of affected product categories has not been publicly released in full as of the publication of this article. The full product scope would be contained in the Federal Register notice accompanying any final tariff action.
Congressional reaction to the tariff threat had not been formally recorded in the Congressional Record as of publication time. Several lawmakers from both parties have previously expressed concern about broad tariff authority being exercised without congressional approval, citing the Constitution's grant of trade powers to Congress under Article I, Section 8. Whether any legislative challenge will be introduced is unknown. Any such challenge would first appear as a bill filing in the House or Senate, retrievable via Congress.gov.
What remains unknown as of this report is whether negotiations produced an agreement before the midnight deadline, what specific Canadian measures the administration identified as discriminatory, and the full text of any executive action signed. The Federal Register and the Office of the United States Trade Representative's public disclosure portal would be the primary sources for those details once any final action is taken.