• The U.S. Bureau of Labor Statistics will release the December 2025 Consumer Price Index (CPI) report on January 13, 2026, following its standard monthly schedule.
  • September 2025 data showed annual inflation rising to 3.0%, the highest since January 2025, with shelter costs and used vehicles among key drivers.
  • The upcoming report will provide critical insights into year-end price pressures, influencing monetary policy expectations for early 2026.

Inflation Data Awaited Amid Persistent Pressures

The U.S. Bureau of Labor Statistics (BLS) has scheduled the December 2025 Consumer Price Index (CPI) report for release on January 13, 2026, according to its standard monthly reporting timeline. This announcement comes as recent inflation readings have shown a gradual uptick, with September's annual rate climbing to 3.0%—the highest level since January 2025. That figure represented an increase from 2.9% in August, though it slightly missed forecasts of 3.1%.

On a seasonally adjusted basis, the CPI-U increased 0.3% in September, following a 0.4% rise in August. Core CPI, which excludes volatile food and energy components, rose 0.2% for the month and 3.0% over the 12-month period, highlighting underlying price pressures that continue to challenge policymakers. "The persistence in core services, particularly shelter, remains a key concern," noted one analyst familiar with the data, speaking on condition of anonymity due to the sensitivity of upcoming releases.

Key Drivers and Market Implications

Several categories have contributed significantly to recent inflation trends. Shelter costs increased 3.6% over the year, representing one of the largest contributors to overall price growth. Used cars and trucks saw a 5.1% annual increase, posting one of the largest gains, while household furnishings and operations rose 4.1% over the same period. Medical care services increased 3.3% annually, adding to service-sector inflation pressures.

In contrast, energy commodities, particularly gasoline, fell 0.5% over the 12-month period, though utility (piped) gas service surged 11.7% annually, reflecting significant heating cost pressures. These mixed signals have left markets parsing the data for clues on whether inflation is moderating or settling at elevated levels. Efforts to reach BLS officials for additional comment on the December report's potential impact were unsuccessful ahead of the release.

Looking Ahead to Year-End Data

The December CPI report will provide crucial information about inflation trends during the final months of 2025, directly influencing expectations for monetary policy decisions in early 2026. With shelter and service inflation proving sticky, even as some commodity prices ease, the focus will be on whether year-end figures show any meaningful deceleration. Market participants are closely watching for any shifts that could signal a change in the Federal Reserve's approach, though recent statements suggest a cautious stance remains in place.

As one economist put it, "The December numbers will tell us if we're seeing a genuine cooling or just seasonal noise." The report's timing in mid-January means it will arrive just as policymakers and investors assess the broader economic landscape for the new year, making it a key data point amid ongoing debates about interest rates and economic resilience.