Trump raises global tariffs to 15%. After the Supreme Court's decision, it tightens its trade policy
In a social media post on Saturday, Trump announced that the increase would be effective “with immediate effect.” He emphasized that the new rates apply to countries that – as he said – “have used the US for decades without consequences.”
“I, as President of the United States of America, will, effective immediately, raise 10 percent worldwide tariffs on countries, many of which have been “robbing” the United States with impunity for decades (until I came along!), to the fully permitted and legally tested level of 15 percent. Over the next few months, my administration will identify and implement new legally permissible tariffs that will continue our incredibly successful process of Making America Great Again – BIGGER THAN EVER BEFORE!!! Thank you for your attention,” reads the American leader's entry.
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The day before, right after the verdict was announced, the president introduced a 10 percent tax rate. global tariff, arguing that it a way to maintain the coherence of its trade policy. Now the stakes are rising to the maximum level, which – as he noted – has been “legally tested”.
The tariff increase could have wide-ranging implications for global trade, supply chains and U.S. relationships with key economic partners. Economists point out that the decision came as global markets are still trying to stabilize after a series of trade tensions in recent years.
The Supreme Court's decision also raises questions about the revenue generated from customs duties. According to Bloomberg analysis, more than 1,500 companies filed tariff-related lawsuits in the Commercial Court in preparation for the ruling.
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The Supreme Court's ruling did not decide whether importers are entitled to refunds, leaving the matter to lower courts – meaning a potential risk of up to $170 billion, or more than half of the revenue raised by Trump's tariffs. Trump criticized the judges for their lack of guidance, but Treasury Secretary Scott Bessent said that despite the ruling, tariff revenues are expected to remain “virtually unchanged” in 2026.
According to data from the Customs and Border Protection Office, quoted by “FT”, the funds obtained by mid-December 2025 from the introduced customs duties amounted to USD 133.5 billion. In turn, data from Yale University say it is USD 142 billion. for all of 2025, and JPMorgan bank estimates that the total amount of duties collected may be up to USD 200 billion.
Donald Trump increases tariffs
According to information provided by the White House, the initial tariffs of 10% announced by Donald Trump on Friday were to come into force on February 24 at. 00:01 Washington time. On the same evening, the former US president is scheduled to deliver a state of the nation address before the joint houses of Congress. However, in Saturday's post, Trump did not specify when exactly the higher tariffs would come into force.
On Friday, the Supreme Court ruled by a 6-3 vote that Trump had acted unlawfullyciting the decades-old federal Emergency Powers Act to justify the so-called mutual customs duties. Last April, the former president used the International Emergency Economic Powers Act (IEEPA) to impose tariffs ranging from 10 to as much as 50 percent. on dozens of key trading partners of the United States.
