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Tariffs and Trade Resource Centre

Discussions on trade policy have spilled over Canada-U.S.-Mexico borders to involve trade partners around the world. With sudden shifts by the new U.S. administration, the continuing threat of new tariffs and trade barriers creates growing uncertainty in the market. These tariffs also provide a strong motivation for businesses to reorient their trade and supply chains to mitigate risk and remain globally competitive.

What would tariffs mean for Canadian exports, sector by sector? What’s the potential impact of retaliatory measures? How would reciprocal tariffs impact Canada-U.S. relations — and your business? How and where can you reposition inbound and outbound trade to other markets?

Keep an eye on this page as BLG’s international trade lawyers bring you the latest on the tariff issue, and how your company can adapt.

Canada US

The inside track on U.S. tariffs and Canadian trade

From Rambod Behboodi 


April 2, 2025 – U.S. trade war escalates: “Liberation Day” promises new barriers to free trade

On April 2, President Trump announced a series of tariffs on imports into the United States:

  • 25 per cent tariffs on foreign-made automobiles and parts;
  • variegated tariffs on a wide range of trading partners;
  • baseline 10 per cent tariff on all other countries; and
  • as reported by news agencies, CUSMA-compliant products will not be subject to the baseline.

News reports also indicate that the exemption for CUSMA-compliant products in “fentanyl” tariffs will continue for the time being.

We underline that the Executive Order has not yet been published. We will provide additional information as and when the EO is signed.


March 26, 2025 – The end of an integrated North American auto manufacturing sector?

An automated social media account apparently linked to the US Department of Government Efficiency (DOGE) had the following to say about the latest US tariff announcement:

The $100B revenue isn’t a “tax hike”—it’s a reclamation of funds from foreign competitors who’ve rigged trade for decades.

There are at least four issues with this sentence; more on that later. The $100B figure refers to the announcement by President Trump, on 26 March 2025, that he will revive his own 2019 finding, based on a Commerce Department report, that:

automobiles and certain automobile parts are being imported into the United States in such quantities and under such circumstances as to threaten to impair the national security of the United States

and, as a result subjected automobiles (as of 3 April) and auto parts (as of 3 May) to a 25% tariff.

The United States imports about $200B worth of automobiles. The top five exporters of autos to the United States are:

Mexico: $78B

Japan: $40B

S. Korea: $37B

Canada: $31B

Germany: $25B

The maximum revenue that can be raised out from a 25% tariff on $200B of imports is, of course, $50B. The “Autonomous AI uncovering waste & inefficiencies in government spending & policy” – and presumably the US government – has a basic math issue. 

Tariffs, by raising the cost of imported goods, will generally result in lower imports. That, at any rate, is why they are imposed in most instances – to reduce competition for domestic goods. And so, that $50B revenue is likely to be lower than expected. Tariffs are reflected in higher domestic prices for the goods – and, in that sense, the only “fund reclamation” that’s taking place is from the pockets of US consumers, rather than foreign competitors.

The picture is even more complex than that.

Well over $100B of these imports are from Mexico and Canada, parties to the Canada-United States-Mexico Agreement, negotiated and signed by President Trump in his first Administration. The Proclamation notes, in this respect, that,

the revisions to the […] United States-Mexico-Canada Agreement (USMCA), have not yielded sufficient positive outcomes.  The threat to national security posed by imports of automobiles and certain automobile parts remains and has increased.  Investments resulting from other efforts, such as legislation, have also not yielded sufficient positive outcomes to eliminate the threat to national security from such imports.

CUSMA, or the USMCA, was built on the NAFTA, an agreement promoted and advanced by the United States in the early 1990s, which was in turn based on the Canada-US Free Trade Agreement, which entered into force in 1989. The automotive rules of origin of the CUSFTA were founded on the Canada-United States Automotive Products Agreement – the Auto Pact – which entered into force in 1965. 

In recognition of this 60-year economic and industrial integration history in the automotive sector, the understanding is that for CUSMA products, the tariffs will apply only to the non-US component of a vehicle, rather than its full value. This would mean a reduction in the impact of the tariffs on US consumers, such an approach has two ancillary – and possibly intended – effects: it will substantially increase the compliance costs of the automotive sector; it also upends the complex and heavily negotiated CUSMA rules of origin. But if all works out, it would mean that tariffs on Mexican and Canadian exports to the United States are going to be less than the full rate: at least for Canadian automobiles, roughly half of the input is US-made. So not even $50B. 

The lesson in all of this? AI has a long way to go before gaining sentience and taking over the world: basic math appears to defeat it, and words it uses – “rigged” – have less than a robust connection with history, or facts.

One final note: the auto tariffs are distinct from the “reciprocal” tariffs expected on 2 April, and likely the “fentanyl” tariffs suspended and due on the same date.


March 12, 2025 – Trade War goes global

On March 12, 2025, promised (or threatened) U.S. tariffs of 25per cent on imports of steel and aluminium, and certain products containing steel and aluminium, “from most countries” under section 232 of the Trade Expansion Act of 1962 came into effect. This was after a new finding that the “articles are being imported into the United States in such quantities and under such circumstances as to threaten to impair the national security of the United States”.

These new measures are not, of course, new. For the most part, they reinstate the June 2018 tariffs on steel and aluminum products that covered items such as steel pipes. The 2025 measures go further by increasing the tariffs on aluminum to 25 per cent, up from 10 per cent in 2018, and by extending the tariffs to other steel and aluminum products, such as household products.

In response, so far, the EU has announced retaliatory tariffs targeting €26 billion worth of U.S. goods, in two tranches. First, the EU will unsuspend the measures on €8 billion worth of goods originally imposed in 2018 and 2020. Second, the EU will impose a package of new measures on €18 billion of U.S. trade, as of mid-April, after consultations with Member States and stakeholders. The consultations are expected to take two weeks. On March 26, 2025, and in the following days, the consultation period will conclude and the Commission will finalize its draft of the countermeasures which is to take effect by mid-April.

Tariff and trade related insights

Canadian exports

With regulatory changes threatening just about every sector of the Canadian economy, BLG’s guidance as a full-service firm will prove a real advantage to Canadian companies looking for strategic solutions on tariff and non-tariff trade barriers. Our International Trade & Investment Group is the most senior and experienced in Canada, and can provide assistance to clients in all industries, including on:

  • Tariff mitigation
  • Supply-chain restructuring
  • Change in business relationships between related Canada-U.S. parties
  • Transfer pricing concerns
  • Certification of origin issues
  • Force majeure and related contractual clauses

You can’t afford to be passive in protecting your interests.

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