Gas Prices Fuel March Inflation Spike

U.S. inflation accelerated in March 2026 , with a sharp rise in gasoline prices after a U.S.-Israeli attack on Iran disrupted global energy supplies. The latest data points to renewed price pressure after inflation has remained a central economic issue since 2021, with knock-on effects for households and confidence.

The Consumer Price Index (CPI) posted its biggest one-month increase since 2022. On a year-over-year basis, CPI rose to 3.3% , described as the highest reading in nearly two years. Officials and data cited the energy shock as a key driver, with gasoline costs rising 21.2% in March, the largest one-month percentage increase since the 1960s.

Inflation pressures also appeared broader than fuel alone. The Federal Reserve’s preferred inflation measure was cited at a 4.1% annual rate over the three months ending in February, indicating that price increases were not confined to a single category. The combination of higher energy costs and wider price gains adds to the challenge of bringing inflation down in a durable way.

Consumer attitudes have weakened alongside the renewed inflation pulse. The University of Michigan’s preliminary consumer sentiment reading for April fell to its lowest level in decades, and the decline was described as deeper than the lows recorded during the 2022 inflation peak or the 2008 financial crisis. The data underscores how persistent price increases can weigh on perceptions even when other headline indicators appear resilient.

Since January 2021, consumer prices have risen a cumulative 26% , contributing to dissatisfaction despite solid GDP growth. At the same time, the labor market has shown signs of cooling. Hiring rates in February matched pandemic lows, and average hourly earnings growth slowed to 3.5% year-over-year in March, down from 5.9% in 2022.

For markets and policymakers, the key uncertainty is how long the energy-driven shock persists and how much it feeds into broader pricing behavior. The data presented links the March inflation acceleration to disrupted global energy supplies, while also showing softer job prospects and weaker sentiment. The next steps for inflation and growth will depend on how these forces evolve, including whether energy costs stabilize and whether broader price pressures cool.