United Kingdom Consumer Price Index

United Kingdom · Monthly series · EC-GB-CPI

Latest, September 2026

144.1 pts

+0.3% from August 2026

Open interactive chartUnited Kingdom Consumer Price Index in the app

144.1122.7101.2October 2016September 2026
History through September 2026.

Forecast

No forecast is cached this cycle.

AI confidence

No forecast yet

Evidence will appear when a forecast and its backtests are available.

How this assessment is made

AI confidence describes historical evidence for this forecast, not a probability of being correct. Each backtest fits on data available before its test window. The baseline carries the last value forward. Supported evidence requires at least six complete, non-overlapping tests, an error ratio below 0.90 (rounded to two decimals), and wins in a majority of tests. Ratios from 0.90 to below 1.10 are on par; 1.10 or above is weak evidence. Inconsistent wins produce mixed evidence. For a selected model, only the recent tests excluded from model selection determine this label. These are historical simulations using the available data, not a live trading track record; revisions and foundation-model pretraining can limit how closely they reproduce a past decision. Past performance can change.

Model comparison

Comparison not readyA forecast and enough history for rolling backtests are required.

Reading

That is the highest of the 120 readings since October 2016.

Written from the figures by a fixed template; no AI model is involved.

Recent history (24 observations)
The 24 most recent observations, newest first.
PeriodValue
September 2026144.1 pts
August 2026143.6 pts
July 2026142.9 pts
June 2026142.5 pts
May 2026142.4 pts
April 2026142.1 pts
March 2026141.0 pts
February 2026140.1 pts
January 2026139.5 pts
December 2025140.1 pts
November 2025139.5 pts
October 2025139.8 pts
September 2025139.3 pts
August 2025139.3 pts
July 2025139.0 pts
June 2025138.9 pts
May 2025138.4 pts
April 2025138.2 pts
March 2025136.5 pts
February 2025136.0 pts
January 2025135.4 pts
December 2024135.6 pts
November 2024135.1 pts
October 2024135.0 pts

Source

Data: public market data feeds.

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