Trump's 50% tariffs on steel and aluminium to come into effect today. What to expect

US President Donald Trump’s promise of a 50 per cent tariff hike on steel and aluminium imports comes into effect from today (June 4). While Trump hails the move as an attempt to revive the American steel and aluminium industry, this measure will severely impact businesses, from automotive manufacturers to home construction firms and especially, consumers.

Earlier, Trump justified the hike by citing national security concerns and the need to protect domestic steel and aluminium industries from what he terms “foreign dumping” and “excess production” that undercuts American competitiveness. He has stated that the 25 per cent tariff was not enough to prevent foreign products from “getting over the fence” and stealing American industry.

Economists and industry leaders are warning of wide-ranging impacts across supply chains. Industries heavily reliant on these metals, such as automakers, home builders, and even can manufacturers, are expected to face elevated input costs, which will likely be passed on to consumers in the form of higher prices for a vast spectrum of products, from cars and appliances to canned goods and construction materials.

What’s the tariff rate on imported steel and aluminium now?

Steel and aluminium imports are currently taxed at 25 per cent, a rate that both metals have faced across the board since March 12 when Trump’s order to remove steel exemptions and raise aluminium’s levy from his previously-imposed 2018 import taxes went into effect.

That’s about to double. In a proclamation issued Tuesday (June 3), Trump confirmed that the US will begin taxing nearly all steel and aluminium imports at 50 per cent after the clock strikes midnight Wednesday. Steel and aluminium from the UK, meanwhile, will continue to be levied at 25 per cent due to a recent trade deal.

Why is Trump raising these tariffs?

Trump says it’s all about protecting US industries. He reiterated that argument last Friday, when he first announced the 50 per cent tariff during a visit with steelworkers in Pennsylvania, where he also discussed a “planned partnership” between US Steel and Japan’s Nippon Steel.

In his speech at US Steel’s Mon Valley Works–Irvin Plant in suburban Pittsburgh, Trump said that the tariff hike would “further secure the steel industry in the US.” Shortly after, he took the same tone when sharing plans to also raise tariffs on imported aluminium.

In Tuesday’s proclamation, Trump also said that the higher tariffs would ensure that imported steel and aluminium would “not threaten to impair the national security.”

“In my judgement, the increased tariffs will more effectively counter foreign countries that continue to offload low-priced, excess steel and aluminium in the United States,” he said in the proclamation.

How is the industry responding?

While some analysts have credited the tariffs Trump imposed during his first term with strengthening domestic production of steel and aluminium, many others have warned that stark new levies can make it difficult for the industry to adjust.

Some organisations representing metal workers also note that tariffs aren’t the only solution needed to boost US manufacturing.

“While tariffs, used strategically, serve as a valuable tool in balancing the scales, it’s essential that we also pursue wider reforms of our global trading system,” David McCall, international president of the United Steelworkers union said in a statement, noting that work must be done “in collaboration with trusted allies” like Canada, the top exporter of steel and aluminium to the US, to help “contain the bad actors.”

Matt Meenan, vice president of external affairs at the Aluminum Association, added that the trade group “appreciates President Trump’s continued focus on strengthening the US aluminium industry,” but that “tariffs alone will not increase US primary aluminium production.”

“We also need consistent, predictable trade and tariff policy to plan for current and future investment,” Meenan said.

What kinds of products could be impacted by inflated tariffs?

A range of businesses that rely on foreign-made steel and aluminium have already begun feeling the impacts of Trump’s previously imposed levies. But the latest anticipated hikes could drive up costs even more.

Steel and aluminium are used in a range of products like washing machines, consumer electronics and cars. Much of the auto industry relies on a global supply chain. And even if you aren’t in the market to buy a new vehicle, repairs could involve parts that use imports of either metal, driving up overall maintenance and ownership costs.

In the grocery aisle, steel and aluminium are ubiquitous in the packaging for many foods, including canned tuna, soup and nuts. Experts warn that hiking import taxes on these materials could lead to higher grocery prices overall, further straining consumers’ wallets.

The aluminium and metal tariffs also carry wider implications for construction and transportation as a whole, as many key building parts and materials are made with these metals. Economists further warn of spillover impacts. Even if a product isn’t directly packaged in steel or aluminium, there could be higher costs to build the shelf it’s sold on, for example, or a truck used to transport it to the store. And all of that could trickle down to the consumer down the road.

If foreign competition becomes “priced out” due to these new tariffs, US steel and aluminium producers may also find room to raise their own prices. As a result, even companies that don’t buy these foreign metals could end up paying more.

Steel prices have already climbed 16 per cent since Trump became president in mid-January, according to the government’s Producer Price Index. And as of March 2025, steel costs $984 a metric ton in the US, significantly higher than in Europe ($690) or China ($392) , per the US Commerce Department.

Will there be any exceptions?

The new 50 per cent tariff rate will apply to nearly all steel and aluminium coming into the US from other countries. But the United Kingdom, which recently reached a sweeping trade agreement with the US, will see an exception.

As part of a trade deal reached between the two nations on May 8, the UK said that the US had agreed to eliminate its current 25 per cent duties on British steel and aluminium down to zero. That exemption had yet to go into effect in the weeks following,  but in his proclamation issued Tuesday, Trump acknowledged that it was “necessary and appropriate” to implement the deal, and would “accordingly provide different treatment” for these metals coming from the UK.

Per Trump’s proclamation, the duty on British steel and aluminium will now stay 25 per cent. But that rate could be adjusted starting on July 9 if the US government determines that Britain has not complied with the framework.

Trump’s planned hikes for steel and aluminium tariffs for the rest of the world could spark retaliation from other trading partners. In response to levies imposed on these metals earlier in the year, for example, the European Union previously outlined countermeasures.

The 27-nation bloc later delayed those actions until July 14 in an effort to ease negotiations but said on Monday that was preparing a list of measures to enact if a trade deal with the US crumbles.

With inputs from AP