US inflation hits 3.8% in April as Iran war drives up costs

US consumer prices rose 3.8% in April from a year earlier, the fastest pace in three years, as the Iran war pushed energy and food costs higher and deepened the political pressure on the Trump administration ahead of the midterms.

"The inflation data reflects a direct passthrough from higher energy costs that is now cascading through the broader economy," said James Okafor, macro analyst at Edgen. "Core goods are still moderating, but the energy component is overwhelming that progress."

Gasoline prices surged 28.4% year-over-year, while electricity costs rose 6.1%, Bureau of Labor Statistics data showed. The food-at-home category climbed 2.9%, with tomatoes up 50%, coffee up 29% and ground beef up 18.9%. The overall reading exceeded the Federal Reserve's 2% target by a wide margin and came in above the 3.4% consensus estimate.

The data raises the stakes for the Fed's next meeting in June, where rate-cut expectations are fading. Overnight index swaps now price less than a 50% probability of a cut before September, compared with near-certain odds of three quarter-point reductions priced in January. Higher borrowing costs would compound the strain on households already spending an extra $40 billion on gasoline since the war began, according to Wall Street Journal estimates.

The inflation print marks the third consecutive month of acceleration, reversing the disinflation trend that had brought the annual rate to 2.4% in September 2025. The last time CPI exceeded 3.8% was in early 2023, when the post-pandemic inflation wave was still receding.

The transmission from the Iran war is visible across multiple layers of the economy. Brent crude traded at $91 a barrel late last week, up from $60 in early January, before the conflict disrupted shipments through the Strait of Hormuz. The International Energy Agency estimates a cumulative shortfall of roughly 1 billion barrels in global oil deliveries from the Gulf since the war began, with global inventories dropping 250 million barrels to fill the gap.

American agriculture is feeling the pinch from both sides. The Farm Bureau reported that 70% of farmers say they cannot afford all the fertilizer they need, as key inputs that travel through the Strait of Hormuz have become more expensive. That could translate into lower crop yields and higher food prices in coming months — a lagged effect not yet captured in the April CPI.

The bond market is already pricing in the implications. The 30-year US Treasury yield hit its highest level in three decades last week, as investors factored in both higher inflation and the rising fiscal costs of increased defense spending and fuel subsidies. Mortgage rates have followed yields higher, adding to affordability pressures in the housing market.

For the Trump administration, the data presents a political challenge. Treasury Secretary Scott Bessent has argued that the US energy boom insulates the economy from the worst of the shock, pointing to an additional 145 million barrels of crude exports since the war began and roughly $50 billion in additional revenues for US energy producers. But the flip side is that American consumers have spent an extra $40 billion at the pump, with lower-income households hit disproportionately, according to New York Fed research.

The divergence between producer and consumer captures the K-shaped nature of the shock. US energy exporters benefit from higher global prices, while households and farmers bear the cost. With the midterm elections approaching, that asymmetry is becoming a central political vulnerability.

This article is for informational purposes only and does not constitute investment advice.