The US global tariff increase to 15 percent follows a Supreme Court ruling that blocked earlier emergency trade measures.

WASHINGTON: The US global tariff increase to 15 percent has been announced by President Donald Trump after the Supreme Court ruled against tariffs imposed under an economic emergency law. The decision marks a new phase in the administration’s trade policy following legal challenges over executive authority.

In a 6–3 ruling, the US Supreme Court found that the President had overstepped his legal powers by implementing broad reciprocal tariffs without clear approval from Congress. The judgement declared the earlier measures unlawful, prompting an immediate response from the White House.

Reacting to the verdict, President Trump confirmed the revised US global tariff increase in a statement on social media.

””Based on a thorough, detailed, and complete review of the ridiculous, poorly written, and extraordinarily anti-American decision on Tariffs issued yesterday. I, as President of the United States of America, will be, effective immediately, raising the 10% Worldwide Tariff on Countries, many of which have been “ripping” the U.S. off for decades, without retribution (until I came along!), to the fully allowed, and legally tested, 15% level,” he said in a post on posted on Truth Social.

The President had previously introduced a 10 percent global tariff after the court deemed his administration’s earlier trade framework illegal. The new rate, set at 15 percent, is presented by the administration as compliant with existing trade provisions.

Economists note that the US global tariff increase could have significant implications for global trade flows, import costs and diplomatic relations. Analysts are closely watching market reactions and potential responses from key trading partners.

The development underscores the continuing debate in Washington over the balance of power between the executive branch and Congress in shaping US trade policy.