CPI reports
Pick any month or calendar year back to 1990 and the full report builds itself — headline numbers, category detail, charts and a written summary — ready to download as a formatted PDF or CSV.
CPI-U index
336.9
Year over year
+4.00%
Month over month
+0.57%
Change vs prior month
0.31pp
Summary · Sep '26
Headline CPI-U stood at an index level of 336.9 in Sep '26, up +4.00% from a year earlier and +0.57% on the month. Annual inflation accelerated from +3.69% in the prior month, and compares with +2.92% twelve months ago.
Energy led the basket at +20.59% year over year, while Medical care was the softest component at +1.67%. Across the eight major groups the spread between fastest and slowest was 18.92 percentage points.
Weighted by basket share, Housing contributed the most to the annual rate — roughly 1.56 percentage points of the 4.00% total, reflecting its 44.9% weight.
Alternative measures for Sep '26: BLS CPI-U +4.00%, Core CPI (ex food & energy) +2.82%, BLS CPI-W +4.21%, Chained C-CPI-U +3.85%. Differences between these series come from population coverage and substitution treatment rather than from different price collections.
Headline CPI, trailing 24 months
Year-over-year % through Sep '26
Category detail · Sep '26
Year-over-year % by major expenditure group
Report tables · Sep '26
Category detail and alternative measures
| Category | Weight | Index | YoY | Contrib. |
|---|---|---|---|---|
| Energy | 6.4% | 341.6 | +20.59% | 1.32pp |
| Transportation | 16.4% | 295.9 | +8.01% | 1.31pp |
| Apparel | 2.5% | 140.0 | +6.10% | 0.15pp |
| Housing | 44.9% | 361.4 | +3.47% | 1.56pp |
| Recreation | 5.4% | 145.9 | +3.15% | 0.17pp |
| Food | 13.6% | 350.9 | +2.82% | 0.38pp |
| Education & comms. | 5.8% | 150.9 | +2.55% | 0.15pp |
| Medical care | 8.1% | 593.7 | +1.67% | 0.14pp |
| Series | Index | YoY |
|---|---|---|
| BLS CPI-U | 336.9 | +4.00% |
| Core CPI (ex food & energy) | 339.3 | +2.82% |
| BLS CPI-W | 330.7 | +4.21% |
| Chained C-CPI-U | 186.8 | +3.85% |
Monthly and annual reports are available for every period back to 1990. Annual reports use annual-average inflation, the same convention the BLS uses to describe a full year, with the December-over-December rate shown alongside. Reports are generated from the same live BLS series that power the dashboard. Category figures are not seasonally adjusted and basket weights are BLS relative-importance values. Informational only — verify against the official release before publishing.