Tax Insights: US imposes tariffs on steel and aluminum imports from Canada

March 14, 2025

Issue 2025-08R

March 14, 2025 update: On March 12, 2025, the United States started applying a 25% tariff on imports of steel and aluminum products from all countries, including Canada, under section 232 of the US Trade Expansion Act of 1962.

In response, the Canadian government announced that Canada will impose, starting March 13, 2025, a 25% surtax on an additional $29.8 billion* worth of US-origin goods (Canada is already applying a surtax on $30 billion of US‑origin goods, effective March 4, 2025). A remission of Canadian surtax may be available for eligible goods. The government is also assessing the US tariffs on the steel and aluminum content in certain derivative products and “may impose further counter tariffs in response.”

Steel and aluminum products from Canada are also subject to the 25% tariff imposed on Canadian-origin goods under the US International Emergency Economic Powers Act (IEEPA), which became effective March 4, 2025.** As such, these imports could be subject to a combined 50% tariff (i.e. a 25% tariff under the IEEPA and a 25% tariff under the Trade Expansion Act of 1962). However, with exemptions made available, effective March 7, 2025, for imported goods that qualify as originating goods under the Canada-United States-Mexico Agreement, the tariffs under the IEEPA may not be imposed at the time of import with the requisite evidentiary support.

The remainder of this Tax Insights was published on February 12, 2025. Except for a minor revision to the title, it has not been altered to reflect the Department of Finance’s March 12, 2025 announcement.

*   The $29.8 billion worth of goods includes: (i) a list of steel products worth $12.6 billion and aluminum products worth $3 billion, and (ii) other imported goods worth $14.2 billion, such as tools, computers and servers, display monitors, sport equipment and cast-iron products. See Department of Finance, Backgrounder “List of products from the United States subject to 25 per cent tariffs effective March 13, 2025Opens in a new window” (released March 12, 2025) at www.canada.ca/en/department-finance.htmlOpens in a new window.

**  For an update of the status of the US tariffs under the IEEPA, see our Tax InsightsUS tariffs and Canadian countermeasures: How will it affect Canadian businesses?Opens in a new window.” 

 

In brief

What happened?

On February 10 and 11, 2025, US President Donald Trump signed two executive orders1 that will impose, starting March 12, 2025, a 25% tariff on imports of steel and aluminum products from all countries, including Canada.

The orders are issued under section 232 of the US Trade Expansion Act of 1962 and cite reasons relating to “national security” to protect and revitalize the US domestic steel and aluminum industries to achieve “sustainable capacity utilization of at least 80%.”

Why is it relevant?

The US tariffs will affect consumers and many businesses, because steel and aluminum are key components of products in many industries, from consumer goods (e.g. cars, appliances, cans for food and beverages) to large infrastructure projects. They will increase costs and disrupt supply chains (e.g. the automotive manufacturing sector is highly integrated across North America) and reduce profit margins.

Starting March 12, 2025, imports of Canadian steel and aluminum products into the United States could face tariffs that exceed 25%, if the proposed 25% tariff on imported goods under the US International Emergency Economic Powers Act (IEEPA) is also implemented.2 Due to two distinct legal pathways, Canadian steel and aluminum imports could be subject to a combined 50% tariff (i.e. a 25% tariff under the IEEPA and the additional 25% tariff under section 232 of the Trade Expansion Act of 1962.)

Actions to consider

Primary producers of Canadian steel and aluminum should evaluate their sales channels to assess alternative markets where product sales would not face tariffs. To mitigate the impact of these tariffs, Canadian producers could also engage with their supply chain to negotiate lower raw material input costs and consider selling existing primary metal inventories to US clients before the tariffs are implemented. Staying informed of ongoing developments, including potential government incentives that could help the affected industries, and engaging in industry advocacy efforts can also be beneficial.

In detail

US tariffs on steel and aluminum imports

The executive orders signed on February 10 and 11, 2025 revise previous executive orders that had imposed, starting in March 2018, a 25% tariff on imports of steel products and a 10% tariff on imports of aluminum products. However, the previous executive orders had provided exemptions to certain countries (e.g. Canada had an exemption until May 31, 2018, and then from May 20, 2019 onwards).

Key provisions in the February 10 and 11, 2025 executive orders include:

  • effective 12:01 am ET March 12, 2025, all imports of steel and aluminum products into the United States will be subject to a 25% tariff (in certain cases, the rate is higher for some countries); countries will no longer be eligible for exemptions from these tariffs
  • all imports of derivative steel and aluminum articles specified in the annex to the orders (or any subsequent annex) will also be subject to an additional 25% tariff; with respect to these derivative articles:
    • for certain specified derivative articles, the tariff will apply only to the steel or aluminum content of the article
    • the tariff does not apply for derivative articles that meet minimum US-produced steel or aluminum content requirements (i.e. made from steel “melted and poured” in the United States) if certification is provided to and accepted by the US Customs and Border Protection (CBP) that the requirements have been met
    • a process for including additional derivative steel and aluminum articles will be established, and domestic producers or industry associations will be able to request for additional derivative steel and aluminum articles to be subject to these tariffs
  • importers will no longer be able to obtain relief from these tariffs, and any previously granted relief for:
    • product exclusions, will remain effective until the earlier of their expiration date or the excluded product volume is imported
    • general approved exclusions, will be terminated as of March 12, 2025
  • the US CBP is directed to prioritize its efforts to stop tariff misclassifications and duty evasion schemes of imported steel and aluminum articles and derivative steel and aluminum articles that result in non-payment of the 25% tariff; the CBP will assess the maximum penalty permitted by law and will not consider any evidence of mitigating factors in its determination
  • no drawback will be available with respect to these tariffs

The takeaway

These tariffs will have a significant negative impact on Canada’s steel and aluminum industries, which export a considerable amount of their products to the United States. The impact would be even more devastating if the tariffs were 50% (as discussed above), instead of 25%. As mentioned above, Canadian steel and aluminum primary producers should evaluate their sales channels to assess alternative markets and engage with their supply chain to negotiate lower raw material input costs.

For Canadian companies procuring goods or components from the United States that contain material amounts of steel or aluminum, those goods or components are likely to have significant price increases to reflect the impact of US tariffs. These businesses should evaluate their supply chain options to understand the full impact of the tariffs on their input costs and identify alternative suppliers of goods or components from non-tariff countries. It is imperative to implement cost and cash management strategies, such as negotiating better terms with existing suppliers or finding efficiencies in their production or administrative processes. Businesses will need to adjust pricing strategies to reflect the increased costs, but still keep prices competitive, and seek cash flow mitigation strategies to manage a potential margin shortfall. In addition, importers of US steel and aluminum goods or components could consider increasing inventory levels of steel and aluminium products before the tariffs take effect to avoid immediate cost impacts.

We expect that Canada will announce measures to counter these US tariffs (e.g. imposing a Canadian surtax on certain US-origin imports). PwC can help your business navigate this current tariff situation. See our:

 

1. Executive Orders “Adjusting Imports of Steel into The United StatesOpens in a new window” (February 10, 2025) and “Adjusting Imports of Aluminum into The United StatesOpens in a new window” (February 11, 2025).
2. For more information on the potential IEEPA tariffs that could be implemented on March 4, 2025, see our Tax Insights “US tariffs and Canadian countermeasures: How will it affect Canadian businesses?Opens in a new window.”

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Martha Goncalves

Martha Goncalves

Partner, Tax, Customs & International Trade, PwC Canada

Philippe Pourreaux

Philippe Pourreaux

Partner, Value Creation, Deals, PwC Canada

Tel: +1 514 205 5144

Chris Casey

Chris Casey

PwC Canada Industrial Manufacturing and Automotive Sector Lead , PwC Canada

Tel: +1 416 320 8175

Michael Dobner

Michael Dobner

National Leader of Economics & Policy Practice, PwC Canada

Tel: +1 416 520 5859

Sean Rowe

Sean Rowe

National Deals Markets and Value Creation Leader, PwC Canada

Marc Levstein

Marc Levstein

Tax Business Units Leader, Global Structuring, PwC Canada

Tel: +1 647 388 5692

Colin Mowatt

Colin Mowatt

Partner, Tax Policy Leader, PwC Canada

Tel: +1 416 723 0321

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Sabrina Fitzgerald

Sabrina Fitzgerald

National Tax Leader, PwC Canada