BLS Finds Shelter Inflation Understated by Up to 0.6% During 2025 Shutdown

*TL;DR: Shelter inflation was likely 0.3%‑0.6% higher year‑over‑year during the 2025 shutdown because the BLS assumed rents stayed flat.

Context The October 2025 federal funding lapse halted the CPI’s housing survey, leaving a gap in rent and owners’ equivalent rent (OER) data. Without fresh numbers, the Bureau of Labor Statistics (BLS) applied a “carry‑forward” method, treating rents as unchanged for the affected sample.

Key Facts - The carry‑forward approach froze rent and OER indexes in October 2025, making shelter inflation appear cooler for the next several months. - BLS research tested alternative estimation methods; every scenario produced higher rent and OER growth than the official CPI figures released at the time. - Depending on the method, shelter inflation may have been understated by 0.3% to 0.6% on a year‑over‑year basis during the shutdown period. - In April 2026, the housing panel was resurveyed, and the official and research shelter‑inflation indexes converged, effectively correcting the temporary distortion.

What It Means The understatement, while numerically modest, matters for markets that track inflation closely and for Federal Reserve policy expectations, where a few tenths of a percent can influence rate decisions. The BLS emphasizes that the bias was temporary, not structural; the April 2026 survey captured two six‑month cycles, aligning the official CPI with the research estimates. Analysts will watch upcoming CPI releases for any lingering effects and for how the BLS refines methodology when survey disruptions occur.