The International Monetary Fund on Tuesday slashed its growth forecasts for the United States, China and most countries, citing the impact of U.S. tariffs now at 100-year highs and warning that rising trade tensions would further slow growth.

The IMF released an update to its World Economic Outlook compiled in just 10 days after U.S. President Donald Trump announced universal tariffs on nearly all trading partners and higher rates - currently suspended - on many countries.

It cut its forecast for global growth by 0.5 percentage point to 2.8% for 2025, and by 0.3 percentage point to 3% from its January forecast that growth would reach 3.3% in both years.

It said inflation was expected to decline more slowly than expected in January, given the impact of tariffs, reaching 4.3% in 2025 and 3.6% in 2026, with "notable" upward revisions for the U.S. and other advanced economies.

The IMF called the report a "reference forecast" based on developments through April 4, citing the extreme complexity and fluidity of the current moment.

The IMF said the swift escalation of trade tensions and "extremely high levels" of uncertainty about future policies would have a significant impact on global economic activity.

The IMF slashed its forecast for growth in global trade by 1.5 percentage point to 1.7%, half the growth seen in 2024, reflecting the accelerating fragmentation of the global economy.

The IMF downgraded its forecast for U.S. growth by 0.9 percentage point to 1.8% in 2025 - a full percentage point down from 2.8% growth in 2024 - and by 0.4 percentage point to 1.7% in 2026, citing policy uncertainty and trade tensions.

The IMF forecast growth in the Euro Area would slow to 0.8% in 2025 and 1.2% in 2026, with both forecasts about 0.2 percentage points down from January. It said Spain was an outlier, with a 2.5% growth forecast for 2025, a 0.2 percentage point upward revision, reflecting strong data.

Growth in Britain would hit 1.1% in 2025, 0.5 percentage point below the January forecast, edging higher to 1.4% in 2026, reflecting the impact of recent tariff announcements, higher gilt yields and weaker private consumption.

Trade tensions and tariffs were expected to shave 0.5 percentage point off Japan's economic activity in 2025, compared to the January forecast, with growth projected at 0.6%.

China's growth forecast was cut to 4% for 2025 and 2026, reflecting respective downward revisions of 0.6 percentage point and 0.5 percentage point from the January forecast.