Consumer prices index, all items, United Kingdom

Overview

Over the last five years the series ranged from 112.1 (August 2021) to 143.6 (August 2026). Since January 2006 the full range is 78.5 (January 2006) to 143.6 (August 2026).

Key facts

Unit: index (2015 = 100). Source: Office for National Statistics. Contains public sector information licensed under the Open Government Licence v3.0. EconoMonitor is not affiliated with or endorsed by the ONS.

The latest reading of 143.6 in August 2026 is above its five-year average of 131.4 and above its ten-year average of 119.0. It is higher than 100% of all 248 readings since January 2006. It has risen for 7 readings in a row up to August 2026. Over the last 12 readings, from September 2025 to August 2026, it averaged 141.1, with a high of 143.6 in August 2026 and a low of 139.3 in September 2025. In the last ten years the largest rise from one reading to the next was in April 2022, to 120.0 from 117.1 in March 2022, and the largest fall was in January 2019, to 106.3 from 107.1 in December 2018.

Among the last 9 complete years, the average was highest in 2025, at 138.4, and lowest in 2017, at 103.4.

The same measure elsewhere: 336.3 in the United States (September 2026, Consumer price index (CPI-U), all items); 170.0 in Canada (September 2026, Consumer price index, all-items); 102.3 in Australia (Q2 2026, Consumer price index, all groups). Definitions differ between countries; each page gives its own.

CPI all items index, 2015 = 100.

Consumer prices index, all items is published monthly by Office for National Statistics in its ONS MM23, CDID D7BT release. It is measured in index (2015 = 100) and is not seasonally adjusted. EconoMonitor holds all 248 readings since January 2006 under the publisher's code D7BT/MM23, keeps earlier values when the publisher revises them, and compares each release with the downloaded file before it is shown.

• Frequency: monthly; seasonal adjustment: NSA.
• Unit: index (2015 = 100).
• Release: ONS MM23, CDID D7BT, published by Office for National Statistics.
• Source series code: D7BT/MM23.
• Methodology: how EconoMonitor stores and checks this series.

Definitions of the other measures quoted on this page: Consumer price index (CPI-U), all items (US), Consumer price index, all-items (CA), Consumer price index, all groups (AU). Source: U.S. Bureau of Labor Statistics. EconoMonitor is not affiliated with or endorsed by BLS. Source: Statistics Canada, table 18-10-0004-01, 2026-09-30. Reproduced and distributed on an "as is" basis with the permission of Statistics Canada. For our calculations: Adapted from Statistics Canada, table 18-10-0004-01, 2026-09-30. This does not constitute an endorsement by Statistics Canada of this product. Source: Australian Bureau of Statistics, Consumer Price Index (6401.0), 2026-06-30 (CC BY 4.0). Figures calculated by EconoMonitor are based on ABS data. EconoMonitor is not affiliated with or endorsed by the ABS.

Source: Office for National Statistics. Contains public sector information licensed under the Open Government Licence v3.0. EconoMonitor is not affiliated with or endorsed by the ONS. Checks for this release: Check A passed, Check B passed.

Data and analysis only, not financial advice. Data publishers do not endorse EconoMonitor. See the disclaimer and methodology.