Canada will impose counter-tariffs between 15% and 50% [1] on various U.S. imports starting Sept. 8 [2].

The move marks a significant escalation in trade tensions between the two neighbors. It follows a decree by U.S. President Donald Trump to impose 50% [4] tariffs on Canadian products, threatening the stability of the North American supply chain.

Prime Minister Mark Carney and Finance Minister Daniel Thibeault announced the measures on Aug. 22 [5]. The tariffs target several key sectors, including steel, dairy, household appliances, agricultural equipment, paper, and electronics [1].

To mitigate the economic impact on domestic industries, the Canadian federal government is releasing C$7.5 billion [3] in support funds. This financial package is intended to stabilize businesses affected by the trade dispute.

Finance Minister Daniel Thibeault said the government would act « quoi qu'il en coûte » and « aussi longtemps que nécessaire » [6], phrases meaning whatever it takes and as long as necessary.

The retaliatory measures come after President Trump said, « Ça suffit ! » [7] regarding the ongoing trade friction.

While the announcement was made on Aug. 22 [5], some reports differed on the specific day of the week the announcement occurred. The government maintains that the new duties on U.S. goods will be fully active by Sept. 8 [2].

Canada will impose counter-tariffs between 15% and 50% on various U.S. imports.

This trade conflict signals a shift toward protectionism in North America, moving away from the integrated trade relationship established by previous agreements. By targeting a broad spectrum of goods—from agriculture to electronics—Canada is attempting to create maximum political and economic pressure on the U.S. administration while using multi-billion dollar subsidies to shield its own internal market from the resulting volatility.