US inflation rises to 3.7% as September gasoline prices drive CPI higher

The US Bureau of Labor Statistics reported a 0.6% monthly CPI rise in September and 3.7% annual inflation, led by a sharp increase in gasoline.

Published 15 October 2026 (IST); reporting and source material checked through 14 October 2026.

The number behind the headline

The US Consumer Price Index increased 3.7% over the 12 months through September 2026, according to the Bureau of Labor Statistics release published on 14 October. Compared with August, the seasonally adjusted index rose 0.6%. These figures measure changes in a basket of consumer goods and services, not a uniform price increase for every household. The headline annual rate was higher than August’s 3.4%, putting fresh attention on energy and household affordability.

Gasoline did much of the lifting

The gasoline index jumped 9.1% in September, accounting for more than half the monthly increase in headline CPI. The broader energy index was up 5.2% over the month. Such movements affect travel and transport directly and can eventually raise costs for goods moved by road or air. They do not mean grocery, rent and every other price category rose at the same pace.

Core inflation gives a different signal

Excluding food and energy, the index rose 2.6% over the year and 0.3% over the month. Economists track this measure because fuel and food can be especially volatile. But core inflation is not the complete cost-of-living experience: households must still buy groceries, pay utility bills and travel to work. Looking at headline and core inflation together is more informative than treating either as the only true number.

Policy questions remain open

The report will shape debate about the Federal Reserve’s next decision, but the CPI release itself does not announce any interest-rate change. Policymakers also consider jobs, wages and growth. The most useful follow-up will be the next monthly inflation release and official central-bank statements, rather than treating an individual news headline as a rate forecast.

Sources and documentation

This report is based on the following publicly available documents and reporting. Claims have been attributed where independent verification is incomplete.

Frequently asked questions

What was the September 2026 US annual inflation rate?

The official CPI figure was 3.7%.

What drove the monthly increase?

Gasoline rose 9.1% and accounted for more than half of the monthly CPI increase.

What was the monthly US CPI change?

The seasonally adjusted all-items CPI rose 0.6% in September.

How much did the energy index increase?

It rose 5.2% over the month.

Was the core annual rate also 3.7%?

No. Core CPI, excluding food and energy, increased 2.6% over 12 months.