The annual inflation rate in the US accelerated to 3.8% in April 2026, the highest since May 2023, and compared to 3.3% in March. Figures came above forecasts of 3.7% as the oil shock triggered by the war with Iran continues to push prices higher. Energy costs jumped 17.9%, the steepest annual increase since September 2022, compared to 12.5% in March, mostly due to gasoline (28.4% vs 18.9%) and fuel oil (54.3%). Inflation also accelerated for shelter (3.3% vs 3%) and food (2.3% vs 2.7%). Compared to the previous month, the CPI was up 0.6%, easing from the 0.9% rise recorded in March, which was the largest monthly gain since June 2022, and in line with forecasts. Core inflation rate also edged higher, albeit at a more moderate pace, to 2.8% year-on-year, the highest level since September, from 2.6% in March and above forecasts of 2.7%. On a monthly basis, core consumer prices increased by 0.4%, up from 0.2% in both February and March and forecasts of 0.3%.