Trump’s 10% global tariff takes effect, adding to trade uncertainty as 15% hike is weighed

A new global tariff announced by U.S. President Donald Trump has officially taken effect.

According to Bloomberg on the 24th (local time), a 10% global baseline tariff took effect starting that day. The move is aimed at keeping the tariff regime in place under a new legal basis after the Supreme Court invalidated the previous reciprocal-tariff measures.

Immediately after the court ruling last week, Trump signed an executive order imposing a 10% import tariff that can be applied for 150 days without congressional approval, citing Section 122 of the Trade Act of 1974. He later signaled the possibility of raising the rate to 15%, but no formal order to increase the tariff had been announced by the time it took effect. The administration is said to be preparing an additional executive order to lift the rate to 15%.

The measure is expected to bring the average effective tariff rate to about 10.2%. If the 15% increase materializes, the average tariff rate is projected to rise to around 12%.

The uncertainty surrounding tariffs is creating confusion among major trading partners. The European Union (EU) has temporarily suspended ratification procedures for a trade deal with the U.S., and India has also postponed its negotiation schedule. Countries such as the United Kingdom, which had previously agreed to a 10% tariff, are voicing concerns about the possibility of an increase to 15%. The European Central Bank (ECB) stressed that predictability in the global trading order is important.

Meanwhile, Trump warned of additional tariffs on countries that revisit existing agreements or “exploit agreements.” The tariff policy is also expected to be a key agenda item in a state of the union-style address scheduled for this week. Polls, however, show negative views of the tariff policy prevailing, adding to political pressure amid concerns over rising prices.