UK CPI inflation explained

Last updated: 23 October 2026 · By Forexuro Desk · Editorial policy

Published 23 October 2026 · Reviewed by the Forexuro Desk editorial team

What it is

The UK Consumer Prices Index measures changes in the prices of goods and services bought by households. The Bank of England's inflation target of 2% is set in terms of CPI. Markets watch headline, core (excluding energy, food, alcohol and tobacco) and services inflation. It is published by the UK Office for National Statistics (ONS).

What to watch in the release

• Headline CPI. The target measure.
• Core CPI. Excludes energy, food, alcohol and tobacco.
• Services CPI. Closely watched by the Bank of England as a sign of domestic price pressure.

When it is released

It is published monthly at 7:00am UK time, usually around the middle of the month, covering the previous month. Use the market sessions clock to convert times, and read market sessions and the economic calendar.

Why it moves markets

Inflation surprises change expectations for Bank Rate. In October 2026 UK September CPI came in at 3.5% against a forecast of 3.4%, which added to expectations of a Bank of England hike. See the Bank of England on our central banks page.

Which pairs and gold it moves

• GBP/USD: The main pair for UK inflation news.
• EUR/GBP: Pound strength or weakness shows directly in EUR/GBP.

How much any market moves depends on the size of the surprise and on what else is happening; there is no fixed reaction. Gold and the dollar pairs often react most when a release changes expectations for interest rates.

UK CPI in context

UK CPI is compiled by the Office for National Statistics and is the measure the Bank of England's 2% inflation target is set against. The ONS treats CPIH, which adds owner occupiers' housing costs, as its lead measure, but for markets the CPI figure is the one that counts. UK inflation rose to its highest level in about four decades in 2022, and since then the Bank has paid particular attention to services inflation, which is closely tied to wage growth and tends to fall more slowly than goods prices.

The release comes out at 7:00am UK time, before most of Europe is fully active, so the first reaction in sterling can happen on thinner liquidity than later in the London morning. GBP/USD reflects the sterling side and the dollar's own mood, while EUR/GBP isolates the UK surprise against the euro and is often the cleaner read of how traders interpreted the data.

Because the Bank of England's Monetary Policy Committee meets eight times a year, a CPI release that lands shortly before a decision can carry extra weight. Compare core and services figures with the Bank's own projections in its latest Monetary Policy Report, not just with the consensus forecast.

How to trade around it carefully

1. Check the exact release time on an economic calendar and convert it to your time zone. Clocks change in the UK on 25 October 2026 and in the US on 1 November 2026, so the gap between London and New York is temporarily one hour.
2. Know the consensus forecast and the previous figure, including any revisions. Markets react to the surprise, not the number itself.
3. Decide in advance whether you will be flat, hold with reduced size or wait for the first move to settle. Many traders avoid opening new positions in the minutes before a top tier release.
4. Expect wider spreads and possible slippage. Stops can be filled worse than their level when liquidity thins; see slippage.
5. Size down. If you hold through the release, a smaller position from the position size calculator keeps the money at risk within your plan.
6. Let the dust settle. The first spike often reverses as the details are digested; waiting for a retest of a level can be calmer than chasing the first candle.

Forexuro signal alerts include a stop loss on every trade, and the team flags major releases on the free Telegram channel before they land. For this release the most relevant page is the GBP/USD signals page.

Related reading

• UK inflation and rate hike bets
• Bank of England rate decision
• Slippage, gaps and weekend risk
• This week's forecasts

More events: Non-farm payrolls (NFP) · US CPI inflation · FOMC rate decision · ECB rate decision · Bank of England rate decision · Bank of Japan rate decision · US GDP · US PCE inflation · PMI surveys · Retail sales · Unemployment rate · RBA rate decision · RBNZ rate decision · Bank of Canada rate decision · SNB rate decision

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