U.K., Australia Face Higher Costs Under Trump’s New 15% Global Tariffs

Many important U.S. trading partners are facing higher duties after President Trump, reacting to a Supreme Court setback, set the rate on a new set of global tariffs at 15 percent.

1.    Triggering Event:
The Supreme Court of the United States struck down President Donald Trump’s earlier sweeping “reciprocal” tariffs.

2.    Administration’s Response:

o    Imposed new tariffs under Section 122 of the Trade Act.

o    Initially set at 10%, then raised to 15%, the maximum allowed under that authority.

o    Valid for 150 days unless extended by Congress.

3.    Mixed Impact Globally:

o    Some countries saw tariffs reduced.

o    Others, including the U.K. and Australia, are now worse off.

Impact on the United Kingdom

4.    Earlier Trade Deal:

o    Britain had secured a 10% tariff rate in a May trade deal during Trump’s second term.

o    Agreement also included lower sectoral tariffs on cars and aircraft parts.

5.    New Situation:

o    The across-the-board 15% tariff overrides Britain’s earlier preferential rate.

o    Raises effective duties, weakening the perceived “special relationship.”

6.    Political Reaction:

o    Education Secretary Bridget Phillipson said discussions are ongoing.

o    British Chambers of Commerce warned businesses would be dismayed.

7.    Economic Stakes:

o    U.K. exported about £60 billion ($81 billion) in goods to the U.S. last year.

o    Services dominate trade, but goods exports are still significant.

8.    Relative Loss:
According to Global Trade Alert, Britain is the biggest loser among the U.S.’s top 20 import partners under the new structure.

Impact on Australia

9.    Free Trade Agreement Context:

o    The Australia–United States Free Trade Agreement eliminated most trade barriers.

o    Australia was earlier subject to a 10% baseline tariff.

10.  Higher Duties Now:

·         The new 15% rate increases tariffs on most Australian exports.

11.  Government Reaction:
Prime Minister Anthony Albanese called the levies unfair and reaffirmed support for free and fair trade.

12.  Strategic Dimension:

·         The U.S.–Australia partnership includes cooperation on critical minerals and rare earths.

·         Trade friction could strain broader security ties.

Other Affected Countries

13.  Also Worse Off:

·         Japan

·         South Korea

·         Major members of the European Union

14.  Potential Beneficiaries:
Brazil, China and India may comparatively benefit under the revised tariff structure.

Broader Implications

15.  Trade Deals in Doubt:
Agreements negotiated only months ago are now uncertain.

16.  Temporary Nature:
The 15% tariffs are a short-term measure, pending possible alternative legal mechanisms.

17.  Alliance Strain:
For close U.S. allies like the U.K. and Australia, the move introduces uncertainty into both economic and strategic relationships.

Overall Significance

Trump’s shift to a 15% global tariff following the Supreme Court ruling has reshuffled trade advantages, leaving key U.S. allies facing higher duties than under prior negotiated deals and injecting fresh volatility into global trade relations.

 

[ABS News Service/24.02.2026]

After the Supreme Court struck down the legal basis for President Trump’s sweeping tariffs on Friday, many U.S. trading partners saw the tariff rate on their goods lowered from what they faced before the ruling. But for others, like Britain and Australia, the math went the other way.

The legal setback led the Trump administration to announce that it would temporarily impose new 10 percent tariffs under a different law, Section 122 of the Trade Act. Over the weekend, the administration raised the rate to 15 percent, the maximum the law allows.

Like the earlier “reciprocal” tariffs that were invalidated by the court, the new import duties upend years of economic cooperation. In some cases, the new tariffs thrust into doubt trade deals agreed to only months ago.

Britain became the first country to reach a trade deal during Mr. Trump’s second term, and both governments emphasized the “special relationship” between the two countries. As part of the deal, reached in May, Britain secured a 10 percent tariff rate, which was applied on top of existing levies. Britain also secured some lower sectoral tariffs, which rely on a U.S. legal authority not subject to the Supreme Court ruling, on its exports of cars and plane parts, in exchange for accepting higher imports of American beef and ethanol.

After Mr. Trump said on Saturday that he would raise an across-the-board tariff to 15 percent, putting Britain in a worse situation, government leaders in London sounded less certain about their country’s special status. Bridget Phillipson, the education secretary, said on Sky News on Sunday that Britain had secured a “preferential deal” and that “we would hope and expect that to continue, but these discussions are ongoing.”

The higher global tariff rate makes Britain the biggest loser among America’s top 20 import countries, with Japan, South Korea and major European Union members also worse off, according to Global Trade Alert, a nonprofit policy tracker. Brazil, China and India stand to benefit the most.

Most of Britain’s trade with the United States is in services, but last year it exported about 60 billion pounds ($81 billion) of goods to the United States, from about 40,000 companies.

These businesses “will be dismayed at this latest turn of events,” William Bain, head of trade policy at the British Chambers of Commerce, said in a statement. “We had feared that the president’s Plan B response could be worse for British businesses and so it is proving.”

For Australia, a free-trade agreement signed in 2005 eliminated virtually all trade barriers between it and the United States. Mr. Trump’s initial batch of tariffs last spring imposed a base-line 10 percent rate on Australia and many other countries. That means that Australia is also now subject to higher rates than before the court ruling for most of its exports.

Prime Minister Anthony Albanese of Australia called the new levies unfair at a news conference on Monday. “We will of course make appropriate representations,” he said. “We support free and fair trade.”

A White House official said the 15 percent tariffs were a temporary measure while the administration pursues other legal authorities to impose permanent rates closer to the rates negotiated in trade deals.

Trade with the United States is a small fraction of Australia’s total trade activity, but it is strategically important. In October, the two countries signed a deal to secure the supply of critical minerals and rare earths, materials the United States needs as it tries to reduce its dependence on China, which has used restrictions on rare earth exports as a trade cudgel. Australia is the world’s fourth-largest rare earth producer, according to the Center for Strategic and International Studies.

Strong economic ties between Australia and the United States were viewed as important factor for national security, said Jared Mondschein, director of research at the United States Studies Centre, an Australian think tank. Rewriting the trade rules, he added, “doesn’t help the U.S.-Australia alliance.”

Several aspects of Britain’s trade agreement with the United States have been bogged down in negotiations, which have been complicated by the Supreme Court ruling. Britain has been pushing for the United States to enact lower tariffs on its steel exports, while the Trump administration wants Britain to accept more U.S. agricultural goods and is frustrated with the country’s digital services taxes and regulations.

“This is an evolving situation,” Ms. Phillipson said on Sunday. “But of course, we want to get the best possible deal for British businesses.”