After the Supreme Court blocked many of his sweeping import taxes on Friday, the president said he would introduce a 10% global rate. He then said on Saturday that the rate would be 15%. However, according to official documents, the tariffs have been set at the lower rate from Tuesday with no directive to increase the rate issued. The BBC has contacted the White House for comment. The White House is working to update the rate to 15% to reflect Trump's announcement, a White House official told Reuters, without saying when the change might come into force.

"I think it simply adds to the chaos and mess," said Carsten Brzeski, an analyst with investment bank ING, referring to the fast-changing tariffs and their effects on businesses. "In terms of uncertainty we're back to where we were last year," he told the BBC's Today programme, adding there was now a higher risk that the US's trading partners would retaliate. "The risk of a real fully-fledged tariff war - trade war - escalation is clearly higher than last year," he said. An executive order signed by Trump on Friday said the temporary 10% import duty was intended to "address fundamental international payments problems and continue the Administration's work to rebalance our trade relationships to benefit American workers, farmers, and manufacturers". The administration is applying the levy under Section 122 of the 1974 Trade Act, which allows the president to impose the charge for 150 days without congressional approval. The president has argued that tariffs are necessary to reduce America's trade deficit - the amount by which imports exceed exports. But the deficit reached a fresh high last year, widening by 2.1% compared to 2024 and hitting roughly $1.2 trillion (£890bn). The US has already collected at least $130bn in tariffs using the 1977 International Emergency Economic Powers Act (IEEPA), according to the most recent official data. (BBC)