National CPI Inflation, All Items (COICOP 1999, Monthly, YoY, NSA): United States

The latest reading SOTW holds for United States is 3.74% y/y for 2026-09, from OECD.

Reviewed series · Prices · Monthly · % y/y · OECD.CPI.COICOP1999.ALL.YOY.M · USA

National consumer price index (not the HICP), all items, change from the same month a year earlier, in the COICOP 1999 classification. It is a separate identity from OECD.CPI.COICOP2018.ALL.YOY.M and is not spliced into it. Enrolled only for reviewed countries still reporting COICOP 1999 currently; the United Kingdom (the OECD series does not match ONS CPI) and India (does not match MoSPI's 2024-base CPI) are excluded. OECD Data Terms section 3 permits commercial reuse with attribution except separately restricted or third-party-owned data; no additional restriction was identified in the pinned flow metadata reviewed 2026-10-13. Collection time is not an original publication timestamp. Source observation flags and reference periods are retained.

This is a reviewed series. Open it in the interactive economic data explorer to choose dates, compare countries and see its source evidence and recorded history.

Latest

3.74

% y/y · 2026-09

Previous

3.40

% y/y · 2026-08

Oldest shown

1.46

% y/y · 2016-09

Readings shown

120

Newest readings; the full history is in the API