At the end of December 2020, Guernsey’s annual inflation, as measured by the changes in the RPIX, was 1.6%.
The RPIX, which excludes the mortgage interest payment item, is the States’ preferred measure of inflation.
The RPI change in December 2020 was 1.0%.
The latest Inflation Bulletin, which contains more details on RPI and RPIX, can be downloaded from gov.gg together with Supplementary & Historic Information and the Inflation Calculator — which can work out the RPI or RPIX change over any time period and any value of money you choose (e.g. for a rent or maintenance review).