New PCE Calculation Will Shift Inflation Reporting

The Bureau of Economic Analysis will update how it measures pricing trends in software, legal, and financial services.

Updated on Sept. 28, 2026 in Inflation

Isometric editorial illustration of a precision index needle balanced on stacked geometric cuboids, symbolizing economic data adjustment. — The Bureau of Economic Analysis will introduce a revised methodology for calculating Personal Consumption Expenditures on September 30, affecting inflation data since 2021. AI Illustration. Upload story photo >

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Will the upcoming inflation data cause the Federal Reserve to pause interest rate hikes?

On September 30, 2026, the Bureau of Economic Analysis will publish August Personal Consumption Expenditures (PCE) data alongside a new calculation methodology. This change will retroactively adjust data dating back to the first quarter of 2021 to improve accuracy in specific service categories.

Why it matters

The updated methodology aims to resolve pricing distortions in key sectors, potentially resulting in a lower headline inflation figure. Since policymakers prioritize PCE for rate decisions, this shift directly impacts the data used by the Federal Reserve to calibrate future monetary policy.

The August headline inflation estimate sits at 3.8 percent, up from 3.7 percent in July. Methodological adjustments to software and services could reduce annual core inflation by as much as 40 basis points, potentially slowing the rate to 2.9 percent.

The players

Bureau of Economic Analysis

A federal agency that provides official macroeconomic data to inform U.S. government policy and business planning.

Federal Reserve

The central banking system of the United States responsible for managing national monetary policy and interest rates.

Cleveland Fed

A regional bank within the Federal Reserve System that produces independent economic forecasts and inflation estimates.

The details

The Bureau of Economic Analysis is integrating IRS income data, federal budget figures, and the Census Bureau Annual Integrated Economic Survey to refine its price indexing. By better capturing pricing trends in computer software, legal services, and portfolio management, the agency seeks to remove volatility that previously skewed core inflation readings. Operators should note that these updates alter the historical baseline back to early 2021, changing the reference points for long-term trend analysis.

Q1 2021 is the retroactive effective date for the updated PCE methodology.
September 2026 was when the Federal Reserve implemented a quarter-point interest rate increase.
September 30, 2026, marks the publication of the August PCE data and the new methodology.
October 2026 is the date of the next Federal Reserve policy meeting.

Market Landscape

This methodology update aligns with the Federal Reserve's reliance on PCE inflation data to determine the nation's interest rate trajectory. By refining the inputs for software and service sector pricing, the bureau is adjusting the primary gauge used to set the current monetary environment.

Operators should prepare for a potential revision in historical inflation data, which may alter the metrics used for cost-of-living adjustments or contract indexing. Monitor the upcoming October Federal Reserve meeting to see how officials incorporate this new calculation into their interest rate outlook.

The takeaway

The government's refined calculation method may lead to lower reported core inflation, potentially easing pressure on future interest rate hikes. Review current vendor contracts and service agreements that include inflation-based price escalators to determine if they remain indexed to the pre-revision data.