ONS Releases December 2025 UK Inflation Data

Overview

• The ONS published the Consumer price inflation, UK: December 2025 release on 21 January 2026 with updated CPIH, CPI and RPI tables.
• The package includes percentage changes, weights and supplementary tables that complement the main inflation time series.
• A detailed briefing note sets out item-level contributors to CPIH and RPI movements, notable changes, a reconciliation summary and an outlook to the next release.
• Price quote data for locally collected items and consumption segment indices are provided as supporting datasets for research use only and are not accredited statistics.
• The headline inflation outputs are accredited official statistics following independent OSR review for trustworthiness, quality and value.