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On 15 February 2024, the Consumer Price Index for January 2024 will be published using a new base period December 2023=100. Along with this rebasing of the index, the CSO will be updating the basket of goods and services that the Consumer Price Index is based on. More details of these changes will be given in the January 2024 release which will be published on 15 February 2024, and will be supported by a new Introduction to Series, December 2023=100, document as well as other supporting material. The Harmonised Index of Consumer Prices (HICP) will continue to be published to base 2015=100.
There will also be a change to the methodology for Insurance Connected with the Dwelling (COICOP 12.5.2) from January 2024 onwards. Further details of the changes will accompany the January 2024 release which will be published on 15 February 2024.
To calculate the percentage change in the CPI between two periods of time
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