US inflation reaches 3.7% as September energy costs jump

US consumer inflation accelerated in September, adding pressure to households and complicating the outlook for monetary policy. The Bureau of Labor Statistics said the Consumer Price Index rose 0.6% over the month and 3.7% over the 12 months through September, up from 3.4% in the year to August.

Energy was a central driver. The gasoline index rose 9.1% in September, accounting for more than half of the monthly increase in the overall index. The broader energy index rose 5.2% over the month, while the food index was unchanged.

Underlying price pressure remains

The measure excluding food and energy increased 0.3% in September, matching August’s monthly rise. Core prices were 2.6% higher than a year earlier, compared with 2.4% in August. The report also recorded monthly increases in categories including recreation, used vehicles, education, airline fares, medical care and apparel.

These figures matter because central bankers look beyond volatile fuel prices when judging whether inflation is becoming persistent. A jump driven by energy can fade if fuel prices reverse, but broader increases make the path back to the Federal Reserve’s 2% inflation goal more difficult.

What the data does—and does not—say

One monthly report does not determine the Federal Reserve’s next move. Policymakers will weigh further inflation readings, employment data, energy-market developments and the effects of interest rates already in place. Markets may react quickly to the release, but expectations are not the same as an official policy decision.

The BLS report is the primary source for these figures. Oseen will update this story as subsequent official data or a Federal Reserve decision changes the outlook.

Source: U.S. Bureau of Labor Statistics, Consumer Price Index, September 2026, released October 14, 2026. This article is an original Oseen summary of the official release.