Canada will impose retaliatory tariffs on a broad range of US goods, including agricultural products, steel, aluminum, and manufactured goods, effective September 8, 2026.
Canada will impose retaliatory tariffs of up to 50% on $27.6bn of US goods from September 8, 2026, matching the rate and value of new US duties on Canadian exports. The move targets steel, aluminum, dairy, appliances, and manufactured goods, raising the delivered cost of everything from aluminum wire to kitchenware and cosmetics. Importers of US products will pay the new rates on every shipment cleared after midnight on the effective date1.
The tariffs cover 1,463 tariff lines across a dozen sectors, with the highest rate reserved for metals and industrial inputs. Steel plates, aluminum structures, copper wire, and stainless-steel bars all face the 50% duty, while household items such as aluminum pots and plastic tableware are taxed at 25%. Dairy products, including cheese and baking mixes, also attract the lower rate2, 3.
It comes after the US raised its own tariffs to 50% on $27.6bn of Canadian goods, effective August 22. Canada’s response is designed to restore price parity for domestic producers competing with now-taxed US imports. The government said the measure would “protect Canadian workers, farmers, families, and businesses” and help them “compete with US products in the Canadian market”1.
The metals hit hardest
Steel and aluminum account for the largest share of the new tariffs. Every flat-rolled steel product—whether coated, painted, or clad—now carries a 50% duty, up from the previous 25% counter-tariff. That includes hot-rolled bars, cold-finished rods, and structural sections used in construction and manufacturing. Aluminum is treated the same: unwrought metal, bars, rods, wire, tubes, and even kitchen foil are all taxed at the top rate2, 3.
The lists name specific dimensions and alloys, leaving little room for reclassification. Steel wire with a cross-section over 6 mm, aluminum foil thinner than 0.2 mm, and stainless-steel plates wider than 600 mm are all captured. Importers of these products must now pay the duty on top of the invoice price, raising the delivered cost of every tonne by half2.
Household goods and foodstuffs
Beyond metals, the tariffs reach deep into consumer and food supply chains. Aluminum pots, plastic tableware, and perfumes all face 25% duties, while baking mixes, molasses, and wood charcoal are taxed at 50%. The lists specify package sizes and butterfat content for baking ingredients, showing the granularity of the targeting. A 25 kg bag of high-fat baking mix, for example, is treated differently from a 1 kg retail pack2, 3.
Duty rate on consumer and food lines
Cosmetics are singled out: lipstick, eyeshadow, and sunscreen all carry the 50% rate. The inclusion of these products suggests an intent to spread the economic pain beyond industrial buyers to everyday consumers. Importers of these goods must now decide whether to absorb the cost or pass it on, knowing that US suppliers have little incentive to discount2.
Who pays and when
The duty is levied at the border and must be paid by the importer of record before the goods are released. There is no grace period: shipments arriving on or after September 8 will be assessed the new rate, regardless of when they were ordered or shipped. Customs brokers have been advised to update their systems to flag the affected tariff lines and calculate the higher duty1.
Who has to act
The government has not offered any exemption or remission process beyond the existing tariff remission framework. Companies seeking relief must apply individually, and approval is not guaranteed. The Canada Strong Diversification Fund, announced alongside the tariffs, is intended to help firms adapt, but details on eligibility and disbursement remain sparse1.
What the tariffs do not change
Existing counter-tariffs on US autos and other products remain in place. The new measures do not alter Canada’s Most-Favoured-Nation rates for other trading partners, so imports from Europe or Asia are unaffected. The government also left open the possibility of further adjustments, noting that the list could be revised if the US modifies its own tariffs1.
What changed, and what did not
The timing—two weeks after the US duties took effect—gives importers little time to adjust supply chains. Contracts already in transit will be hit, and new orders will have to factor in the higher cost. The government said the delay was necessary to finalise the product lists and publish the legal text, but it leaves little room for manoeuvre1.
The next steps
The tariffs are set to remain in place until the US removes its own duties. The government has not announced a review date, but the documents suggest the list will be updated if the US changes its tariff schedule. In the meantime, importers must either pay the duty or find alternative suppliers outside the US, a shift that could take months to implement1.
Two mirrored tariff walls
| Question | Canada, on US goods | United States, on Canadian goods |
|---|---|---|
| Top duty rate | Up to 50% | 50% |
| Goods covered | $27.6bn | $27.6bn |
| Effective | September 8, 2026 | August 22 |
| How long | Until the US removes its duties | Canada revises list if US adjusts |
The move signals a hardening of Canada’s trade stance, but it also raises the risk of further escalation. With both countries now levying 50% duties on billions of dollars of each other’s goods, the delivered cost of cross-border trade has effectively doubled in key sectors. For importers, the immediate task is compliance; for the wider economy, the longer-term question is whether the tariffs will achieve their stated goal of protecting domestic producers or simply raise prices for everyone.
Sources
- ↩ Canada imposes targeted counter-tariffs in response to U.S. tariffs https://www.canada.ca/en/department-finance/news/2026/08/canada-announces-targeted-countermeasures-and-substantive-support-for-workers-and-businesses-in-response-to-us-tariffs.html
- ↩ List of U.S. products subject to counter-tariffs effective September 8, 2026 https://www.canada.ca/en/department-finance/news/2026/08/list-of-products-from-the-united-states-subject-to-counter-tariffs-effective-september-8-2026.html
- ↩ U.S. Products Subject to Canadian Counter Tariffs https://www.canada.ca/en/department-finance/programs/international-trade-finance-policy/canadas-response-us-tariffs/complete-list-us-products-subject-to-counter-tariffs.html