CPI inflation rises to 3.5%, highest since October 2025

21 October 2026 · Source: ONS, Consumer price inflation, UK: September 2026

Line chart of UK CPI inflation over 12 months to September 2026, rising to 3.5 per cent, the highest since October 2025, with transport and motor fuels the largest upward contribution.

UK CPI inflation rose to 3.5% in the 12 months to September 2026, the highest since October 2025, with transport and motor fuels the largest upward contribution.

Every figure in this chart was read in the primary source before it was drawn.

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