A tit-for-tat trade war is a lose-lose game for everyone economically, yet this week has seen continued escalation in the tariff conflict between Canada and the United States.

Canada’s counter-tariffs on $27.6 billion of U.S. imports into Canada—or about six per cent of goods—came into effect on Sept. 8 following recent U.S. levies on Canadian imports.

That same day, the U.S. announced a ban multiple dairy products, alcoholic beverages and motorcycles from Canada starting Sept. 29.

A return to the negotiating table is imperative for businesses and households in both countries to avoid further damage. Consequences of this fallout could include disruptions in the supply chain, modest increases in inflation and potential job losses.

The dollar amount of goods covered by the scheduled U.S. ban is sector-specific and contained. Dairy products and alcoholic beverages are a relative drop in the bucket when it comes to Canadian exports to the U.S., especially compared to autos, steel, aluminum or energy in terms of sheer dollar value in trade.

But this move symbolizes a significant step up in the trade conflict as it is fundamentally different from imposing tariff percentages.

This chart shows the value of Canadian imports into the U.S. in 2025

The U.S. has only placed bans on products from China amid ongoing global trade tensions; China and Canada are the only two countries that have directly retaliated against U.S. measures.

Uncertainty remains endemic

The indirect economic impact is more serious.

Uncertainty remains the elephant in the room; businesses can account for tariffs, but they cannot plan for rules that seem to change on a near-constant basis.

Making decisions on investment, staffing and inventory is considerably more challenging when businesses don’t know whether they would even be allowed to sell their products.

The latest move by the U.S. differs from the outset of trade tensions in 2025, where there was more space between announcing and implementing tariffs. Now, compounding measures with deeper consequences are seemingly introduced with minimal time for businesses to develop mitigation strategies.

As a result, households in both countries could see higher inflation and increased uncertainty regarding income and job security.

Smaller Canadian businesses that predominantly export to the U.S. without much diversification would see the most damage if they are shut out of the U.S. market.

More broadly speaking, this move sends a warning to other U.S. trade partners that steep escalation could happen if they retaliate against U.S. trade measures.

This chart shows the changes of Canadian imports into the U.S. from 2016 to 2025

While dramatic in nature, it’s important to note that these moves are not unprecedented.

Since last year, multiple provincial governments in Canada removed U.S. alcohol from their shelves. Some also limited government procurement contracts with U.S. companies—though the federal government never implemented such a strategy.

The forward guidance coming out of Ottawa has a somber tone, warning of hard times ahead and emphasizing that while the aggregate impact of the trade war might not be devastating, some sectors would be more hurt than others.

This is not the rosy outlook Canadian businesses would want heading into the fall and the holiday season—especially as the domestic economy is emerging from a slump.

Beneath the headline

Imports of alcoholic beverages from the U.S. to Canada peaked in 2023 and have since declined to 2021 levels. This is due to multiple provinces pulling U.S.-made liquor off their shelves when trade tensions first emerged in 2025.

In contrast, dairy trade between the two countries has risen steadily in both directions—but a ban would change that quickly.

Canada imports more alcohol beverages and dairy products from the U.S. than it exports southward. Alcohol exports from Canada to the U.S. topped US $1 billion in 2024, while dairy exports topped out at US $262 million in 2025.

In contrast, vehicle imports from Canada into the U.S. were above US $50 billion in 2023 and 2024 before dropping to US $45 billion in 2025. Meanwhile, the U.S. imported nearly US $10 billion in Canadian lumber and US $5 billion in Canadian steel in 2025.