UK Inflation Rate Today (CPI 3.5%): ONS Data, Breakdown & Cost of Living
UK Consumer Prices Index (CPI) inflation stands at 3.5%. View latest ONS series D7G7 data, basket breakdown, food and energy costs, and forecast.
Verified as of 2026 SEP
UK INFLATION RATE · Historical Multi-Year Cycle
Understanding the uk inflation rate Mechanism
The Consumer Prices Index (CPI) is the United Kingdom's headline metric for measuring consumer inflation. Compiled monthly by the Office for National Statistics (ONS) under dataset code MM23 (series D7G7), it tracks the price evolution of a representative basket of over 700 goods and services consumed by average UK households.
Inflation directly erodes purchasing power: a 3.5% annual rate means a basket of goods costing £1,000 twelve months ago now demands £1,035. Beyond household budgets, the September CPI print is statutorily critical: it determines the following April's state pension increase under the 'Triple Lock' (the higher of September inflation, wage growth, or 2.5%), as well as business rate adjustments and rail fare revisions.
While headline inflation has moderated significantly from the October 2022 peak of 11.1%, domestic services inflation and transportation costs have introduced upward friction into the Bank of England's final disinflation glidepath.
What This Means for Savers
To protect capital against 3.5% inflation, cash holdings must yield at least 3.5% after tax. With the Bank Rate at 3.75%, top cash accounts currently preserve purchasing power, but savers paying 40% higher-rate tax must use Cash ISAs to avoid losing real value to HMRC.
What This Means for Borrowers
Elevated inflation limits how rapidly the Bank of England can reduce borrowing costs. Mortgage borrowers should budget on the assumption that interest rates will stabilize around 3.25%–3.50% rather than returning to the near-zero levels of the 2010s.
Configure SITE_ADSENSE_ID in .env to serve active ads here.
Recommended Calculators & Strategic Guides
Free tools to stress-test your household budget against current interest and inflation benchmarks.
Frequently Asked Questions
What is the latest UK inflation rate? +
The UK Consumer Prices Index (CPI) annual inflation rate was 3.5% in the September 2026 data release from the Office for National Statistics.
What is the difference between CPI and CPIH? +
CPI covers consumer goods and services, while CPIH includes owner occupiers' housing costs (OOH) and Council Tax, providing a broader picture of household expenses.
How does inflation affect the UK State Pension? +
Under the Triple Lock rule, the basic and new State Pension rise each April by the highest of three figures: average earnings growth, 2.5%, or the previous September's CPI inflation rate.