US inflation accelerates to 3.7 percent on surging fuel costs

Inflation in the United States rose by more than anticipated in the year to September, according to official figures released in the final data update before the midterm elections. The pace of price increases accelerated to 3.7 percent, up from 3.4 percent in the twelve months to August. This higher-than-expected rise was primarily driven by a significant increase in petrol prices, which have climbed following disruptions to energy supplies in the Middle East resulting from the conflict between the United States, Israel and Iran. The upcoming elections are being heavily influenced by cost-of-living pressures across the country, making this data point a critical factor in the political discourse.

The Bureau of Labor Statistics measures inflation through the consumer price index, which tracks price changes in hundreds of everyday items, including fresh food, gasoline and medical services. The agency regularly updates this basket of goods to reflect changing consumer spending and lifestyle habits. In September alone, vehicle fuel prices jumped by 9.1 percent, accounting for more than half of the overall increase in inflation. Over the past twelve months, vehicle fuel prices have surged by 34.2 percent. Broader energy inflation rose by 20.4 percent over the year, with prices for fuel oil, energy services and electricity all climbing. Notably, fuel oil, which is used for home heating, increased by 74.2 percent over the same period.

The surge in energy costs is linked to global supply constraints. Before the recent conflict with Iran, crude oil was trading at just over $70 a barrel. However, as the conflict constricted supplies, the price quickly rose and is currently above $100. Experts indicate that the US Federal Reserve is closely monitoring whether these energy costs will begin to affect other areas of the economy, such as food prices, and drive inflation higher. At present, food inflation remains subdued, having been flat over the month of September and standing at 2.5 percent across the year. Core inflation, which excludes food and energy prices, was recorded at 2.6 percent.

Shortly after the release of the latest inflation data, the Social Security Administration announced that benefits including old age, survivors and disability insurance would rise by 3.6 percent in 2027. This cost-of-living adjustment will result in an average retirement benefit increase of $75 a month. The adjustment takes effect in January for approximately 72 million people, while increased payments for the 7.2 million recipients of supplemental security income will begin on 31 December.

Trade policy has also contributed to recent price pressures. Since assuming office for a second term, President Donald Trump introduced tariffs on most US trading partners. Although most of these additional global levies were outlawed by the Supreme Court in February, the president announced a new 10 percent global tariff to replace them. Research from the Federal Reserve Bank of New York suggests that these higher import taxes have impacted inflation. The study found that exporters reduced prices very little in response to the new tariffs, meaning US-based businesses absorbed nearly 90 percent of the added tax cost. Furthermore, higher tariffs indirectly affected the prices of locally made goods, as many US producers rely on overseas parts and materials. The Federal Reserve found that every percentage point increase in average tariffs led to nearly a 0.25 percent price increase for consumer goods after one year.

While current inflation is above the Federal Reserve’s target of 2 percent, it remains lower than peaks seen in previous years. During the pandemic, supply chain disruptions pushed inflation up, and in early 2022, the Russian invasion of Ukraine caused oil prices to surge over $100 a barrel. These factors drove inflation to a peak of approximately 9 percent. Economists note that a moderate level of inflation is considered healthy for an economy, as it encourages spending rather than saving. However, if inflation rises too slowly or falls, consumers may delay purchases, potentially leading to wage cuts or job reductions as businesses cope with lower demand.