The Retail Price Index in the United Kingdom rose by 0.6% month-on-month in August 2026, slightly below market expectations of a 0.7% increase but matching the pace from the previous month. Retail Price Index MoM in the United Kingdom averaged 0.43 percent from 1947 until 2026, reaching an all time high of 4.30 percent in July of 1979 and a record low of -1.50 percent in July of 1948. source: Office for National Statistics



Calendar GMT Reference Actual Previous Consensus TEForecast
2026-08-19 06:00 AM
Retail Price Index MoM
Jul 0.6% 0.3% 0.8% 0.6%
2026-09-16 06:00 AM
Retail Price Index MoM
Aug 0.6% 0.6% 0.7% 0.5%
2026-10-21 06:00 AM
Retail Price Index MoM
Sep 0.6% 0.3%


Related Last Previous Unit Reference
Inflation Rate YoY 3.10 2.90 percent Aug 2026
Inflation Rate MoM 0.50 0.30 percent Aug 2026
Retail Price Index 421.60 419.10 percent Aug 2026
Retail Price Index YoY 3.40 3.20 percent Aug 2026


United Kingdom Retail Price Index MoM
The Retail Prices Index (RPI) is a long-standing measure of inflation in the UK, originally designed as a compensation index to protect workers from price increases following the First World War. It covers private households but excludes the top 4% of households by income and pensioner households deriving at least 75% of their income from benefits. The RPI provides inflation estimates from 1947, with its first official consumer price inflation release published in January 1956. Until the introduction of the UK Consumer Prices Index (CPI) in 1996, the RPI and its derivatives were the UK's sole official measures of consumer price inflation.
Actual Previous Highest Lowest Dates Unit Frequency
0.60 0.60 4.30 -1.50 1947 - 2026 percent Monthly
NSA