Inflation jumps to 3.7% in final report before midterms as Trump faces affordability test and Fed weighs rate hike

Inflation accelerated in September, reaching 3.7% annually in the latest snapshot of consumer prices before the November midterm elections. Rising gasoline costs drove much of the increase, but higher prices across several other categories also raised concerns about whether inflation is becoming more persistent.

The report presents a fresh challenge for President Donald Trump as voters continue to grapple with the cost of living. It also complicates the Federal Reserve’s efforts to control inflation, with the possibility of another interest rate increase back in focus ahead of its late-October policy meeting.

The Consumer Price Index (CPI), which measures the prices consumers pay for a broad range of goods and services, rose 3.7% over the 12 months through September, up from 3.4% in August, according to the U.S. Bureau of Labor Statistics.

On a monthly basis, consumer prices increased 0.6% in September, compared with a 0.4% gain in August. The annual inflation rate also exceeded economists’ expectations of 3.6%, signaling that price pressures remain a challenge for households and policymakers.

The increase is significant because inflation has remained above the Federal Reserve’s 2% long-term target, even as policymakers have adjusted interest rates in response to changing economic conditions.

Gasoline prices accounted for more than half of the monthly increase

Energy costs were the biggest driver of September’s inflation jump. Gasoline prices rose 9.1% during the month, accounting for more than half of the overall monthly increase in consumer prices, according to the Labor Department.

The broader energy index increased 5.2% in September after rising 2.1% in August. Over the past 12 months, energy prices climbed 20.4%, while gasoline prices surged 34.2%.

The increases reflect renewed pressure on fuel markets amid geopolitical tensions and disruptions affecting global energy supplies. For households, higher gasoline prices can also make commuting, shopping and other everyday activities more expensive.

Core inflation also accelerated, raising concerns about broader price pressures

Even after excluding food and energy, which tend to experience more volatile price swings, inflation showed signs of strengthening.

Core CPI increased 0.3% in September, matching August’s monthly increase. The annual core inflation rate rose to 2.6% from 2.4% in August, exceeding economists’ expectations of 2.5%.

That measure is important because it can help economists assess whether inflation is spreading beyond temporary movements in fuel and other volatile prices. The latest figures suggest that higher energy costs are not the only concern facing the Federal Reserve.

Several other categories also recorded price increases in September, adding to the financial pressure on consumers.

Shelter costs rose 0.4% during the month, accelerating from a 0.3% increase in August. Shelter prices were up 3.2% over the past year, keeping housing expenses an important contributor to inflation.

Airline fares also increased, with prices up 22.4% over the 12 months through September. Recreation, education and medical care recorded monthly increases as well.

These increases matter because households cannot always avoid essential expenses such as housing and health care. Even when gasoline prices eventually ease, rising costs across other categories can keep overall living expenses elevated.

Grocery prices were mixed despite rising overall inflation

Food prices provided some relief in September, although the picture varied by category.

The overall food index was unchanged from August. Grocery prices, measured by the food-at-home index, declined 0.1% during the month, while restaurant and other food-away-from-home prices increased 0.2%.

Over the past year, grocery prices rose 1.8%, while food-away-from-home prices climbed 3.5%. The overall food index was up 2.5% over the same period.

The monthly decline in grocery prices offers a contrast to the sharp increase in energy costs. However, a slowdown in food inflation does not mean prices have returned to earlier levels. Consumers generally continue paying more than they did before the cumulative price increases of recent years.

A potential Fed rate hike is back on the table

The hotter-than-expected inflation report has revived speculation that the Federal Reserve could raise interest rates again at its October meeting.

The Fed raised its benchmark interest rate in September to a target range of 3.75% to 4%, marking its first increase since 2023. The decision reflected concerns that inflation was not moving sustainably toward the central bank’s 2% target.

Following the September CPI release, financial markets reassessed the likelihood of another increase at the Fed’s October 27-28 meeting. Some economists argued that stronger price pressures, including increases outside energy, could justify further tightening. Others favored waiting for more data before making another move.

A rate hike is not guaranteed. Federal Reserve officials must weigh inflation risks against the possibility that tighter monetary policy could weaken economic growth and employment.

If the Fed raises rates again, the effects could extend beyond financial markets and reach households and businesses.

Higher benchmark rates can put upward pressure on borrowing costs for credit cards, some auto loans and other forms of variable-rate debt. Mortgage rates do not move in lockstep with the federal funds rate, but expectations for future Fed policy can influence mortgage rates and other longer-term borrowing costs.

For consumers already dealing with higher gasoline and housing expenses, additional borrowing costs could make it harder to manage monthly budgets. Businesses could also face higher financing expenses, potentially affecting investment, hiring and prices.

On the other hand, the Fed uses higher rates to restrain demand and help bring inflation down over time. Policymakers must decide whether the risk of persistent inflation outweighs the economic costs of further tightening.

What happens next for inflation and the Federal Reserve

The next major question is whether September’s increase proves temporary or signals a broader acceleration in inflation.

If energy prices stabilize and price increases in other categories moderate, the Fed could have more room to hold rates steady while monitoring the economy. But if core inflation continues to accelerate, policymakers could face stronger pressure to raise rates again.

The October 27-28 meeting will be an important test of how the central bank interprets the latest figures. Investors, businesses and households will be watching for signs of whether the Fed believes inflation is becoming more entrenched.

For Trump, the report underscores the political difficulty of improving affordability when global energy costs and domestic price pressures remain elevated. With the midterms approaching, the trajectory of inflation could shape both the economic outlook and voters’ assessments of the administration’s performance.

The inflation report adds pressure on Trump before the midterms

The September report arrives at a politically sensitive time for Trump and congressional Republicans, with the November midterm elections approaching.

Affordability remains a key concern for voters who have experienced years of higher prices for housing, groceries, transportation and other necessities. Although the annual inflation rate measures how quickly prices are increasing rather than the overall cost of living, another acceleration could reinforce public frustration.

The latest figures also complicate the administration’s efforts to demonstrate progress on the economy. Rising gasoline prices are particularly visible to consumers, making them an important part of the affordability debate.

For Republicans, the challenge is to convince voters that economic policies are improving household finances. Democrats, meanwhile, have an opportunity to highlight persistent living costs as they seek to challenge the administration’s economic record.

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Social Security announces 3.6% COLA for 2027, but Medicare premiums could eat into the $75 monthly raise

Social Security recipients will receive a 3.6% cost-of-living adjustment (COLA) in 2027, increasing average retirement benefits by about $75 a month. But with inflation reaching 3.7% in September and Medicare premiums for 2027 still awaiting official announcement, retirees may find that the increase provides less financial relief than expected. The Social Security Administration (SSA) announced the adjustment on Oct. 14, with higher retirement, survivor and disability payments scheduled to begin in January. The increase will affect nearly 72 million Social Security beneficiaries, while approximately 7.3 million Supplemental Security Income (SSI) recipients will receive higher payments beginning Dec. 31, 2026. Although the adjustment is intended to protect purchasing power, rising expenses for housing, food, transportation and health care could absorb much of the additional income. For retirees enrolled in Medicare, the final increase in their monthly checks will depend partly on changes to premiums and other deductions.

Social Security announces 3.6% COLA for 2027, but Medicare premiums could eat into the $75 monthly raise

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