# Japan CPI — Since 1946 · Plover Analytics

> Japan's Consumer Price Index back to August 1946 — all items less imputed rent, the longest continuous run the Statistics Bureau publishes.

Page: https://ploveranalytics.com/cpi-long.html

## Consumer Price Index — since 1946

Latest reading, September 2026: All items less imputed rent · YoY 2.4%; All items less imputed rent · MoM 0.0%; All items less imputed rent · 3m Annualized 2.8%.

_Latest values, as published_

| Period | All items less imputed rent (index) | All items less imputed rent · YoY (%) |
|---|---:|---:|
| Sep 2026 | 102.5 | 2.4 |
| Aug 2026 | 102.5 | 2.2 |
| Jul 2026 | 102.4 | 2.3 |
| Jun 2026 | 101.8 | 1.9 |
| May 2026 | 101.7 | 1.7 |
| Apr 2026 | 101.1 | 1.5 |
| Mar 2026 | 100.7 | 1.6 |
| Feb 2026 | 100.2 | 1.4 |
| Jan 2026 | 100.9 | 1.7 |
| Dec 2025 | 101.0 | 2.3 |
| Nov 2025 | 101.2 | 3.3 |
| Oct 2025 | 100.8 | 3.4 |
| Sep 2025 | 100.1 | 3.4 |

YoY: (index[t] / index[t−12 months] − 1) × 100, from published index values.

Source: Statistics Bureau of Japan. · Data through September 2026 · JSON: https://ploveranalytics.com/api/v1/cpi-jp-long/overview · CSV: https://ploveranalytics.com/api/v1/cpi-jp-long/observations?series=0163&format=csv

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Every figure above is either as published by its source (official) or calculated by this platform with the formula stated beside it. Missing is shown as —, never as zero. Guidance for quoting: https://ploveranalytics.com/llms.txt