Canada will impose retaliatory tariffs on U.S. goods ranging from 15% to 50% starting Sept. 8 [3, 4].
The move marks a significant escalation in trade tensions between the two neighbors, threatening the stability of one of the world's largest bilateral trading relationships.
Industry Minister Mélanie Joly said the measures on Tuesday were a direct response to U.S. tariffs on Canadian steel, aluminum, and other products [1, 5]. These include duties imposed under Section 338 and Section 232 of U.S. trade law [5, 6].
"We are fighting back," Joly said [1].
The Canadian government is targeting 700 individual tariff lines [3]. The specific rates applied to selected U.S. products will be 15%, 25%, and 50% [3].
Reports on the total value of the affected U.S. goods vary. CBC News said the value is approximately $28 billion [1], while Global News cited a figure of $27.6 billion [3]. The Los Angeles Times reported a lower estimate of $20 billion [2].
The tariffs are scheduled to take effect at 12:01 a.m. on Tuesday, Sept. 8, 2026 [3, 4].
Ottawa said the action was a dollar-for-dollar countermeasure [5]. The federal government in Ottawa intends to use these tariffs to pressure the U.S. to remove its own duties on Canadian exports [2, 7].
“"We are fighting back."”
This trade conflict represents a shift toward protectionism between two highly integrated economies. By targeting a broad range of goods—estimated between $20 billion and $28 billion—Canada is attempting to create enough economic pressure across various U.S. sectors to force a renegotiation of steel and aluminum duties. If neither side concedes, the resulting price increases for consumers and disrupted supply chains could slow economic growth in both nations.
