Inflation rose last month, pushed upward by surging gasoline prices as the ongoing conflict with Iran continues to exert heavy influence on global oil markets, according to the latest Consumer Price Index report released on Wednesday by the U.S. Bureau of Labor Statistics.
Overall consumer prices rose 3.7% for the 12 months through September, accelerating from a 3.4% annual increase recorded in August. The Consumer Price Index measures the average costs that consumers pay for a comprehensive basket of goods and services, including food, energy, commodities, and everyday services. On a monthly basis, overall prices rose 0.6%, driven largely by a sharp 9.1% monthly surge in gasoline prices alone. That represents a notable acceleration from the 0.4% monthly increase seen in August, immediately transmitting upward pressure across the broader economy, driving up mortgage rates, and adding mounting pressure on the Federal Reserve to further increase its benchmark interest rate.
Energy prices have climbed precipitously across the board, with gasoline registering a staggering 34.2% increase year-over-year. Other vital energy expenses, including electricity and natural gas, have also grown more expensive for households. Meanwhile, shelter costs continued their stubborn upward trajectory, with that major category climbing 3.2% compared to the same time a year ago. Prices for a broad array of other consumer goods—ranging from used cars and trucks and higher education to airline fares, medical care, and apparel—also registered increases, compounding the financial squeeze on households nationwide.
The rapid economic shifts have hit the housing market particularly hard. Freddie Mac mortgage rates have climbed substantially in recent weeks, moving from 6.66% in late August up to 7.4% now. Even a surprise, temporary bump in existing home sales during the late summer months has failed to counteract the deep pessimism settling over consumers as Americans grapple with severe housing affordability issues. For many young people and prospective buyers, homeownership appears increasingly out of reach as the market climbs to dizzying heights.
The Federal Reserve previously raised its benchmark interest rate to a range of 3.75% to 4.00% at its September meeting, a decision based in large part on persistent inflation readings. Because the central bank’s monetary policy decisions carry massive implications for the housing market, policymakers will be watching subsequent CPI data with intense scrutiny.
Jake Krimmel, a senior economist at Realtor.com, noted that the general consensus among forecasters—including projections from FactSet and the Cleveland Fed’s inflation nowcasting models—anticipated headline inflation to rise 3.6% year-over-year and 0.5% month-over-month. However, this latest report serves as the final inflation read before the Federal Reserve’s crucial upcoming vote on interest rates scheduled for October 28.
Even so, Krimmel observed that the latest reading will likely have little marginal bearing on a housing market that has already slowed down significantly. At a bare minimum, the Federal Reserve will want clear confirmation that inflation is not getting worse, but that alone will not mean policymakers view the current rate of price growth as acceptable.
Rough waters ahead
Josh Hirt, a senior U.S. economist at Vanguard, pointed out that continued economic growth demonstrates underlying resilience within the broader economy. This resilience is supported by solid business investment, rising payrolls through September, and a labor market that, while no longer accelerating at frantic speeds, remains remarkably steady.
Vanguard projects that core inflation will hover around 3% year-over-year during the final three months of the year. Furthermore, the financial institution anticipates that the Federal Reserve will likely hold interest rates steady at its upcoming October meeting before potentially implementing a 25-basis-point rate increase in December.
Recent upward revisions to income data depict a healthier backdrop for consumer spending and underscore an economy that is accelerating as we move toward year-end, according to Hirt.
However, Krimmel cautioned that the recent surge in mortgage rates will deal a painful blow to the housing market. The 74-basis-point increase in mortgage rates over the past few weeks equates to a direct 7.2% loss in purchasing power for buyers. For a household working with a budget of $2,000 a month dedicated to mortgage principal and interest, that means their purchasing power has abruptly dropped by $22,000.
Combined with the traditional market slowdown that accompanies the arrival of autumn, the real estate sector is bracing for some cold months ahead, Krimmel said. Already, the strain is visible, with 20.8% of active housing listings seeing price cuts in September alone.
Getting inflation under control remains paramount for the housing market over the next few months, according to Krimmel. If price stability is achieved by early 2027, the market could finally see relief in the form of lower mortgage rates. Such a stabilization could also translate into real wage gains—which currently sit at roughly 3%, remaining well below the expected 3.6% inflation rate.
Reversing these negative trends will ultimately improve purchasing power, help ease the persistent lock-in effect keeping current homeowners from selling, and guide both housing affordability and overall market activity back toward normal conditions.
