Trump orders 50% tariffs on nearly $20 billion of Canadian goods over trade disputes

President Donald Trump signed three proclamations on July 20, 2026, ordering 50% tariffs on nearly $20 billion of Canadian imports, with the measures scheduled to take effect on August 19. The administration invoked Section 338 of the Tariff Act of 1930 in what Reuters described as the statute's first known use in nearly a century. The tariffs cover a wide range of goods, including wine, dairy products, cement and hockey gear, while exempting energy, potash, fish, critical minerals and products already covered by Section 232 tariffs. Prime Minister Mark Carney said Canada had merely matched earlier U.S. auto tariffs and that the dispute had raised costs for families, particularly in the United States. Ontario Premier Doug Ford said Canada should respond “tariff for tariff, dollar for dollar” if the measures proceed, while the 30-day notice period leaves time for possible negotiations.

Section 338 tariff authority

• ▪President Donald Trump signed three proclamations on July 20, 2026, to impose 50% tariffs on approximately $20 billion worth of Canadian goods.
• ▪The 50% tariffs are scheduled to take effect on August 19, 2026, following a 30-day notice period.
• ▪President Donald Trump invoked Section 338 of the Tariff Act of 1930 to authorize the 50% tariffs, marking the first known usage of this statute in nearly a century.
• ▪The new tariffs exempt Canadian energy products, potash, fish, critical minerals, and products already covered by Section 232 tariffs.

Canadian retaliatory trade measures

• ▪Prime Minister Mark Carney stated that Canada's trade measures merely matched prior U.S. tariffs that were in direct violation of the USMCA.
• ▪The White House stated that Canada and China are the only two countries that chose to retaliate against President Donald Trump's tariffs over the past 18 months.

Targeted dairy products

• ▪The White House cited Canada's dairy supply-management system as one of the grounds for the new tariffs.
• ▪The Trump administration complained that Canada allows greater dairy market access under its trade agreement with the European Union than under the USMCA.

Targeted alcohol products

• ▪The administration cited decisions by most Canadian provinces to halt purchases or retail sales of U.S. alcohol in response to earlier U.S. tariffs.
• ▪The White House said Canadian imports of U.S. alcoholic beverages fell 81% over the previous year.

Targeted automotive sector

• ▪The administration cited Canada's treatment of U.S.-made vehicles as a reason for the tariffs, while products already covered by Section 232 tariffs are exempt from the new measures.
• ▪The White House said Canadian imports of U.S. motor vehicles fell 22% over the previous year.

Provincial premier responses

• ▪Quebec Premier Christine Fréchette declared that any weakening of Canada's dairy supply management system is non-negotiable.
• ▪Ontario Premier Doug Ford urged that Canada should respond to the new U.S. tariffs "tariff for tariff, dollar for dollar."