{"metric":"rpi_annual_rate","title":"RPI inflation rate","topic":"economy","unit":"percent","measure_type":"percentage","geography":"K02000001","comparison_method":"year_on_year","latest":{"period_start":"2026-07-01","period_end":"2026-07-31","period_label":"July 2026","value":3.2,"status":"final","vintage":"2026-08-18"},"comparison":{"period_label":"July 2025","value":4.8,"vintage":"2026-08-18"},"source":{"publisher":"ONS","publication":"Consumer price inflation time series (MM23)","landing_url":"https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/latest","sheet":"MM23","table":"CZBH","row":"RPI All Items: Percentage change over 12 months: Jan 1987=100","column":"2026 JUL","raw_value":"3.2","file_url":"https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/latest","file_sha256":"68aab2fc37eaf9df4c4cbd29ac28dd280a0fbdc10791981c5a08b3ecc4b0c713","release_date":"2026-08-18","release_label":"Consumer price inflation, UK: July 2026"},"definition":"The percentage change over twelve months in the Retail Prices Index, a legacy measure retained because it still governs some contracts, index-linked gilts and student loan interest.\n","does_not_measure":"A statistically sound measure of inflation: RPI lost its National Statistic status in 2013 and ONS advises against its use.\n","links":{"page":"/economy/rpi-annual-rate","series":"/api/metrics/rpi_annual_rate/series","vintages":"/api/metrics/rpi_annual_rate/vintages"}}