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October 21, 2026UK CONSUMER PRICE INDEX, SEPTEMBER 2026 
UK Consumer Price Index including owner-occupiers' housing costs (CPIH) rose 3.6% year-over-year in September 2026, up 0.3 percentage points from its year-over-year in August 2026. The UK CPI index was up 3.5% year-over-year in September 2026, up 0.4 percentage points from year-over-year in August.
Owner occupiers' housing costs account for roughly 18% of the CPIH basket and remain the principal reason CPIH differs from CPI, as it is included in CPIH but excluded from CPI. In September, transport made the largest upward contributions to the annual inflation rate, contributing to the monthly change of both CPIH and CPI inflation. Restaurants and hotels made the largest downward contribution.
Sources: United Kingdom Office for National Statistics Statistical bulletin
Statistics Canada. Table 18-10-0004-01 Consumer Price Index, monthly, not seasonally adjusted