
Fact of the Week: A 10 Percent Increase in the Effective U.S. Tariff Rate Could Lead to an Inflation Increase of up to 1.2 Percent
Source: James Freeman, “Voters Still Hate Inflation…” The Wall Street Journal, March 26, 2025.
Commentary: President Trump’s announcement of tariffs on April 2 added to an already worrying inflationary outlook for the United States and world economy. Heightened tariffs will increase the price of goods directly by adding a tax to imported products, and indirectly by inflating the cost of downstream domestic goods and services. Experts suggest that increasing the U.S. effective tariff rate by 10 percentage points will increase inflation by up to 1.2 percent. However, the tariffs announced on April 2 are expected to increase the effective tariff rate by more than double that, between 20 and 25 percentage points, meaning inflation can be expected to increase accordingly. High tariffs can also lead to stagflation, a scenario in which increasing inflation is coupled with economic stagnation and rising unemployment. Stagflation is difficult to combat with monetary policy, the Federal Reserve’s most effective tool in fighting inflation, making stagflation particularly dangerous.