3.7%: US Inflation Beats Forecasts in September as Motor Fuel Drives Costs Higher
October 15, 2026 · Frisian News
Photo: Wikimedia Commons
US consumer prices rose 3.7% in the year to September 2026, above market forecasts and well beyond the Federal Reserve's 2% target, with gasoline up 34.2% over 12 months accounting for over half the monthly increase.
The Bureau of Labor Statistics put the annual consumer price index at 3.7% for the year to September, up from 3.4% in August and above the 3.6% that economists surveyed by Dow Jones had forecast. That figure sits 1.7 percentage points above the Federal Reserve's stated 2% target, and it arrived before midterm elections next month, fought largely on the cost of living.
Motor fuel drove the number. Gasoline rose 9.1% in September alone, according to BLS data, and accounted for over half of the monthly all-items increase. Over the past 12 months, pump prices are up 34.2%. Bureau of Transportation Statistics figures put the national average for regular gasoline at $4.36 a gallon in September, up 37.6% from September 2025. On the West Coast, drivers paid $5.54 a gallon. Diesel No. 2 reached $6.29 a gallon in September, a new all-time high and 67.8% above where it stood a year ago, according to BTS.
The fuel surge traces back to the US-Israel conflict with Iran. Before that war began, crude oil traded at just over $70 a barrel, according to the BBC. Constricted supplies pushed it above $100. The broader energy index climbed 20.4% over the past 12 months, with fuel oil, used in home heating, up 74.2% over the year, according to the BLS.
The Fed responded in September with its first interest rate increase in more than three years, lifting the benchmark federal funds rate by a quarter of a percentage point to a target range of 3.75% to 4%, according to CNBC. CME Group's FedWatch tool showed futures traders pricing better than 96% odds of at least one further rise before year-end, with roughly a 50-50 chance of a half-point move by December. The probability of a hike at the October 27-28 Federal Open Market Committee meeting stood at about 54%.
Inflation has exceeded the Fed's 2% target every month since March 2021, BLS data show. Fed officials also monitor core CPI, which strips out food and energy, and which came in at 2.6% for the year to September. Even that figure beat forecasts: Dow Jones economists had expected 2.5%. Carson Group chief macro strategist Sonu Varghese told CNBC that "core inflation ran at a 3.7% annualized pace in September and 3.2% over three years," and warned that the full impact of higher diesel prices had yet to feed through.
Tariffs are adding a second layer of pressure. Research from the Federal Reserve Bank of New York found that each percentage point rise in average tariffs translates into roughly a 0.25% consumer goods price increase after one year, and that US businesses absorbed nearly 90% of the added cost rather than overseas exporters. Apparel prices, which are sensitive to import levies, rose 0.3% in September and are 3.4% higher than a year ago, according to BLS data.
The Social Security Administration moved quickly after the data dropped, announcing a 3.6% cost-of-living adjustment for 2027 that will raise the average retirement benefit by $75 a month, according to the BBC. About 72 million people receive Social Security payments. The adjustment takes effect in January; the 7.2 million receiving supplemental security income see increased payments from December 31.
Food prices offered no reprieve but no new shock. BLS figures show food inflation running at 2.5% for the year, flat on the month. Shelter costs climbed 3.2% annually.
Published October 15, 2026 · Frisian News