Retail Price Index

The Retail Price Index (RPI) is a measure of inflation, measuring monthly changes in the cost of purchasing a constant representative basket of consumer goods and services, and is closely linked with the cost-of-living adjustment (COLA) increases and periodic rent payment adjustments.


The RPI index is compiled using a large and representative selection of more than 440 different goods and services for which price movements are regularly monitored. Around 10,000 separate price quotations are used each month to compile the Index.

The current base reference period is December 2016=100. All RPI indices pertaining to the years prior to 2017 were also re-based to December 2016=100. This latest index series may be linked to the previous one by using a linking coefficient of 1.1199.​



 Contact Information:

Ms Denise Magrin
Head of Unit
2599 7312