What was announced

Ottawa said it had sized its counter-measures to match the trade value covered by the 50 per cent US tariffs on Canadian goods — an 'equal and reciprocal' principle. The list covers more than 700 categories worth C$27.6 billion (about US$20 billion).

Rates fall into three bands: 50 per cent on steel, aluminium and clothing; 25 per cent on home appliances and dairy; and 15 per cent on items such as air conditioners. Mobile phones and cosmetics are also reported to be on the list.

The support package announced alongside is worth C$7.5 billion (about US$5.4 billion), covering small and medium-sized enterprises, corporate cash-flow financing and assistance for workers exposed to the new tariffs.

How it got here

The measures follow the collapse of bilateral trade talks. Washington had already applied 50 per cent tariffs to Canadian steel, and said on Aug. 24 it would raise tariffs on cars, auto parts and steel to 50 per cent from Jan. 1, 2027.

Canada signalled on Aug. 22, immediately after talks broke down, that counter-measures would take effect Sept. 8; this announcement fixes the product lines and rates. Ottawa has repeatedly said it will not concede unilaterally.

Who pays

Tariffs are paid by importers in the importing country, and the cost typically passes partly into consumer prices through distribution. Canadian consumers may see higher prices for American appliances, clothing and food, while US exporters may see orders fall.

North American supply chains cross the border repeatedly, so when both sides raise tariffs at once, some components are charged twice along the way. Autos and appliances are particularly exposed.

Asian firms are not insulated. Companies with plants in Canada or the United States serving the whole North American market must recalculate logistics and sourcing. Korean and Taiwanese manufacturers are among them.

What remains open

Roughly two weeks remain before the Sept. 8 start date, leaving room for talks to resume. Neither side has publicly signalled a retreat. This paper will report on whether the measures take effect as announced and whether the product list is adjusted.