US President Donald Trump speaks during a press conference at the White House in Washington, DC, on February 20, 2026.
Kevin Dietch | Getty Images News | Getty Images
President Donald Trump announced on Saturday that he would raise global tariffs from 10% to 15%, a day after the Supreme Court rejected broad parts of the president’s trade policy.
President Trump said in a post on Truth Social that the new tariffs are “effective immediately.” He also warned that additional levies would follow.
“As President of the United States, I will immediately take into effect raising the 10% global tariff on countries, many of which have been ‘stripped’ from the United States for decades, to the fully permissible and legally tested level of 15% without retaliation (until I showed up!),” he wrote.
“In the coming months, the Trump administration will determine and issue new legally permissible tariffs,” he added.
President Trump’s announcement asserted that the new tariffs would go into effect without delay, but it is unclear whether a formal document detailing the timing has been signed. The initial 10% tariffs are scheduled to go into effect on Tuesday, February 24 at 12:01 a.m. ET, according to a White House fact sheet released Friday.
The White House did not immediately respond to CNBC’s request for clarification.

President Trump, who is scheduled to deliver the State of the Union address to Congress on Tuesday, was dealt a blow on Friday when the Supreme Court ruled in a 6-3 tariff ruling that the president had wrongly invoked the International Emergency Economic Powers Act (IEEPA) to enforce the levy.
On Friday, hours after the ruling, President Trump imposed 10% tariffs worldwide under Section 122 of the Trade Act of 1974. The law authorizes the president to impose temporary tariffs for 150 days. Any extension requires parliamentary approval.
The president delivered scathing remarks about the Supreme Court’s decision in a social media post, calling it “ridiculous, ill-conceived and extremely anti-American.”
He also attacked Justices Neil Gorsuch and Amy Coney Barrett, who ruled for the majority.
The decision cheered Democrats in Congress, with Senate Minority Leader Chuck Schumer of New York calling the tariffs “disorderly and illegal” in a statement. Tariffs and the overall economy are expected to be key issues in the Democratic Party’s campaign for this November’s midterm elections.
Republicans were even more divided on the issue. Some criticized the Supreme Court’s decision, while others argued that Congress had the constitutional authority to enforce the levy.
Stocks initially rose on Friday following the Supreme Court ruling, but then fell back and then recovered again. Investors hope the ruling could ease tensions between the United States and its trading partners, provide refunds to affected companies and curb inflation.
How the U.S. government will proceed with refunds remains a question. According to one estimate, the U.S. government could owe importers more than $175 billion in refunds following the Supreme Court’s ruling.
