SyloSpace
Office of National Statistics, Newport - geograph.org.uk - 5071471

What is happening to UK prices?

UK inflation rose to 3.5% in the year to September 2026, above the 2% target, driven by higher petrol and diesel prices, and is expected to rise again.

Updated 2 hours ago4 min readVersion 2

Photo: M J Roscoe · CC BY-SA 2.0 · Wikimedia Commons

The short answer

Evidence-backed AI-prepared starting map

UK inflation rose to 3.5% in the year to September 2026, the highest rate in nearly a year and above the Bank of England's 2% target, according to BBC News. The rise was slightly higher than economists had predicted and was driven by higher petrol and diesel prices. The BBC also reports that inflation is widely expected to rise again in the coming months. 1

What this rests on5 independent sources
  • Evidence 13
  • Interpretation 5

In brief

  1. UK inflation rose to 3.5% in the year to September 2026, the highest in nearly a year and above the 2% target, per BBC News.1

    Evidence-backed
  2. The rise was slightly above economists' predictions and was driven by higher petrol and diesel prices.1

    Evidence-backed
  3. CPI is built from a regularly revised basket of goods; 2026 changes added alcohol-free beer, dashboard cameras and pet grooming equipment.1

    Evidence-backed
  4. Research finds retail petrol prices can rise faster than they fall, and that gas price shocks pass into UK inflation more strongly than oil.23

    Evidence-backed

At a glance

The picture in numbers

Live · updated just now

BBC News report, 21 October 2026

3.5%

4 in every 100

UK inflation in the year to September 20261
For comparison with the 3.5% September rate

2%

2 in every 100

Bank of England's inflation target1
Year to September 2026, per BBC News
  • UK inflation3.5%
  • Bank of England target2%
Inflation rate vs the Bank of England target1

The evidence behind it

5 sources
  • Other studies and data4
  • Background1

When it was published

Newest from 2026

20182026
Sources on this page by kind and year
SourceKindYear
What is happening to UK prices?Background2026
Inflation effects of oil and gas prices in the UK: Symmetries and asymmetriesOther studies and data2024
Do petrol prices rise faster than they fall? Evidence from the UK retail and wholesale petrol sectorsOther studies and data2023
The role of inflation in the UK economy in the post-pandemic eraOther studies and data2023
The Rise and Rise of InflationOther studies and data2018

The community around it

No one has added to this page yet. Firsthand experience, a newer study or a different reading of the numbers would show up here, credited to you.

What it means for you

Which fits you?

Pick the situation closest to yours. Each answer says what it rests on.

If you want the headline number

the reported figure is 3.5% for the year to September 2026, above the Bank of England's 2% target, per BBC News.1

Evidence-backed

If you're trying to understand why fuel matters so much

petrol and diesel feed directly into the transport component of the CPI basket, and research shows retail pump prices can be stickier on the way down than on the way up.21

Evidence-backed

If you're weighing the 'expected to rise again' line

treat it as a forecast reported by the BBC, not an observed outcome; this page does not predict future inflation.1

Interpretation

If you're interested in how the Bank of England might respond

the BBC notes the Bank watches CPI closely when setting its base rate, but no Bank statement on this reading is included here.1

Evidence-backed

The full story · 4 chapters

What is happening to UK prices, and why did inflation rise in September?

Chapter 1: What the latest figures say

AI summary:Inflation hit 3.5% in the year to September 2026, above forecast and target, driven by fuel prices, with more rises expected.

Evidence-backed

Evidence-backed: Inflation in the UK rose to 3.5% in the year to September 2026, the highest rate in nearly a year and above the Bank of England's 2% target, per BBC News. The rise came in slightly higher than economists had predicted, and the BBC attributes it to higher petrol and diesel prices. The same report says inflation is widely expected to rise again in the coming months.1

Interpretation

Interpretation: Read plainly, this is a monthly CPI reading: prices across the tracked basket are 3.5% higher than a year earlier, not 3.5% higher than last month. The direction of travel (up, and above target) matters more for the Bank of England's interest-rate decision than the exact decimal, which is why the 'above forecast' detail is being reported.1

Chapter 2: How UK inflation is measured

AI summary:The ONS tracks prices of hundreds of everyday items in a regularly updated basket, and the Bank of England watches the resulting CPI closely.

Evidence-backed

Evidence-backed: The Office for National Statistics tracks the prices of hundreds of everyday items, including food and fuel, in a virtual 'basket of goods' that is regularly updated to reflect shopping trends. In 2026, alcohol-free beer, dashboard cameras and pet grooming equipment were added, while premium bottled lager and sheets of wrapping paper were removed. The main measure is the Consumer Prices Index (CPI), published every month, and the Bank of England watches it closely when setting its base interest rate.1

Interpretation

Interpretation: CPI is a constructed index with a history of methodological change, not a raw tally of receipts; the basket revisions above are a live example of how what counts as 'inflation' shifts over time. That means month-to-month moves partly reflect weighting and basket choices as well as underlying price pressure.41

This part rests on

4. The Rise and Rise of Inflation
Where did our current measures of consumer price inflation come from? Who made the important changes that led to the sophisticated methodology we use today, and when were those changes made? Rob O'Neill, Jeff Ralph and Paul Smith explore the history of one of our most important economic indicators
Read original source
1. What is happening to UK prices?
Inflation in the UK rose to 3.5% in the year to September, the highest rate in nearly a year and above the Bank of England's 2% target. The rise was slightly higher than economists had predicted, driven by higher petrol and diesel prices. Inflation is widely expected to rise again in the coming months. Inflation is the increase in the price of something over time. For example, if a bottle of milk costs £1 but is £1.05 a year later, then annual milk inflation is 5%. The prices of hundreds of everyday items, including food and fuel, are tracked by the Office for National Statistics (ONS). This virtual "basket of goods" is regularly updated to reflect shopping trends, with alcohol-free beer, dashboard cameras, and pet grooming equipment among items added in 2026 , while premium bottled lager and sheets of wrapping paper were removed. The ONS uses price changes in the basket of goods over the previous 12 months to calculate inflation. The main inflation measure is called the Consumer Prices Index (CPI) , external , and the latest figure is published every month. The Bank of England looks closely at the inflation figures when deciding whether to increase, lower or hold its base interest rate, which is currently 3.75%. Putting rates up makes borrowing more expensive, giving people and businesses less money to spend, reducing demand for goods and slowing price rises. But it is a careful balancing act – increasing borrowing costs also risks harming the economy.
Read original source

2 independent sources

Step by stepHow the inflation basket is built
  1. Track pricesThe ONS follows prices of hundreds of everyday items, including food and fuel.
  2. Update the basketItems are added or removed to reflect shopping trends, such as alcohol-free beer.
  3. Publish CPIThe Consumer Prices Index is published every month.
  4. Set interest ratesThe Bank of England watches CPI closely when setting its base rate.

Drawn from this chapter's text

Chapter 3: Why fuel prices move inflation

AI summary:Research shows petrol prices can rise faster than they fall, and gas price shocks pass into UK inflation more strongly than oil.

Evidence-backed

Evidence-backed: Research on UK data from January 2020 to July 2022 found significant price asymmetries in the retail petrol sector: retail prices respond more rigidly to changes in input costs, so consumers can face petrol prices that rise faster than they fall. The wholesale sector was found to be more flexible to crude oil changes, with asymmetries less persistent. The authors argue retail firms' pricing decisions should be a focus for policymakers.2

Evidence-backed

Evidence-backed: A separate study of UK inflation and energy prices found a symmetric response of inflation to gas price shocks but an asymmetric response to oil price shocks, and that gas price dynamics pass through to inflation more strongly than oil. The authors suggest a more diversified energy mix could reduce energy price pass-through into inflation.3

Interpretation

Interpretation: Together these help explain the mechanism behind a fuel-driven uptick: pump prices feed directly into the transport component of the basket, and the pass-through can be uneven in both directions. They do not, on their own, quantify how much of the September 2026 rise came from fuel versus other categories.23

This part rests on

2. Do petrol prices rise faster than they fall? Evidence from the UK retail and wholesale petrol sectors
This study investigates the presence of price asymmetries in the UK retail and wholesale petrol sectors over the period of January 2020–July 2022. The scope of this research is to explore whether petrol prices rise faster than they fall according to changes in input costs, namely fuel and international crude oil prices for the retail and wholesale sector respectively. As the time sample considers the shocks of covid-19 restrictions and rising inflation, the presence of structural breaks is assumed which may contribute to asymmetric behaviour. The Autoregressive Distributive Lag (ARDL) approach is implemented in the pricing equation of the model by formulating four versions for each sector, according to the presence of asymmetries and price-cost margins. The results provide significant evidence of price asymmetries in the retail petrol sector; however, such asymmetries are less pronounced over high margin periods. The wholesale sector is found to be more flexible to changes in crude oil prices as asymmetries are less persistent throughout the sample. Therefore, consumers face rigid petrol prices because of retail firms’ decisions, which should be the focus of policy makers.
Read original source
3. Inflation effects of oil and gas prices in the UK: Symmetries and asymmetries
The United Kingdom is among the countries experiencing a cost-of-living crisis believed to be influenced, at least in part, by the dynamics of the international oil and gas markets. To this end, this study aims to achieve to achieve two objectives. Firstly, the dynamic association between the UK's inflation and oil and gas prices is examined. Further, the study examines whether the response of the UK's inflation to energy price dynamics is (a)symmetric. This study adopts wavelet coherency to determine the dynamic co-movement between energy prices and inflation. In addition, the dynamic simulated autoregressive distributed lag model (DS-ARDL) is used to examine the dynamic response of inflation to energy price changes. The estimation results reveal a symmetric response of inflation to gas price shocks. Further, the response of inflation to oil price shocks is asymmetric. Interestingly, the effect of gas price dynamics passes more strongly to inflation than to oil price dynamics. These findings suggest that a more diversified energy mix could help prevent substantial energy price pass-through to inflationary pressures.
Read original source

2 independent sources

Petrol stationRed Hill filling station on the A6 Loughborough Road - geograph.org.uk - 4306310Photo: Mat Fascione · CC BY-SA 2.0 · Wikimedia Commons
Side by sidePetrol versus gas in price pass-through
PointPetrolGas
Price responseRetail prices rise faster than they fallInflation responds symmetrically to price shocks
Pass-through strengthWholesale prices more flexible to crude oilPasses through to inflation more strongly than oil

Drawn from this chapter's text

Chapter 4: Policy context

AI summary:One analysis argues UK inflation policy shifted toward fiscal tools and government support for lower-income households, a contested reading that predates these figures.

Evidence-backed

Evidence-backed: Analysis of the post-pandemic period describes a shift in UK inflation regulation, with the cost-of-living crisis given top priority and government support for lower-income households delivered mainly through income redistribution and benefits. The paper argues the official approach moved from monetary toward fiscal tools, including higher taxes and National Insurance contributions, and that Bank of England measures became more consistent with financing government borrowing than with maintaining price stability.5

Interpretation

Interpretation: This is a contested reading of policy rather than a settled account, and it predates the September 2026 figures; treat it as context for how the UK has approached inflation, not as an explanation of this month's number.5

Add a source or a different interpretation

What would strengthen or challenge this answer?

Your contribution joins the discussion. Changes to the shared answer are reviewed separately.

Your turn

Where do you stand?

Pick a question to answer, vote in the poll, or tell us if this helped. Individual answers stay private; only totals are shown.

The conversation starts here

A few questions from this page to take the topic further. Bring a source, another angle or something you've tried.

3 open questions

  • ResearcherLooks for evidenceFrom this page

    The page says the 3.5% figure and the 'above forecast' claim come from a single BBC report. What would the ONS's own September 2026 CPI release need to show to confirm or revise those numbers?

  • ChallengerTests an assumptionFrom this page

    The page ties the September rise to petrol and diesel prices. In what situations might fuel costs explain little of a CPI rise, so this explanation would not hold?

  • ExplorerInvites experienceFrom this page

    The page notes the 2026 CPI basket added items like alcohol-free beer and pet grooming equipment. Which of these basket changes, if any, have you noticed affecting how price changes get reported?

Readers' pollNo answers yet

How much do rising UK prices affect your household finances?

How much do rising UK prices affect your household finances?
Your perspective belongs in the picture.Join free to vote

Your individual answer is private. Only totals are shown.

Did this answer your question?

Be the first to vote
Your perspective belongs in the picture.Join free to vote
More quick questions: how you feel, and questions from connected pages

How do you feel about this?

No votes yet
Your perspective belongs in the picture.Join free to vote

Quick questions from connected pages

Keep exploring

Where this leads

What is happening to UK prices?You are here

One finding can inform several topics. Connections and subtopic reports are shown for exploring; they aren't extra evidence for this page.

Before you go

What to remember

Try to recall each hidden figure before you reveal it. Remembering, not rereading, is what makes it stick.

  1. UK inflation rose to in the year to September 2026, the highest in nearly a year and above the 2% target, per BBC News.

  2. The rise was slightly above economists' predictions and was driven by higher petrol and diesel prices.

  3. CPI is built from a regularly revised basket of goods; 2026 changes added alcohol-free beer, dashboard cameras and pet grooming equipment.

This answer keeps changing

When new evidence or a better source comes in, this page is updated (it's on version 2, last changed 2 hours ago). Follow it to be told when that happens.

Petrol station forecourt in Stadhampton - geograph.org.uk - 4835761Up nextSurging fuel prices push UK inflation rate to 3.5% ahead of BudgetWhy did UK inflation rise to 3.5% in September 2026, and what does it mean for the Budget and interest rates?

Ask this Sylo

Still wondering about something?

Answers come only from this page's reviewed material, with citations, and say plainly when the page doesn't cover it yet.

Follow the story

This page changes as sources and experiences are reviewed. Follow it, share it or add what you know.

CommentsFollow

Behind this page

Who's adding to it, where it comes from, how it changed and what would make it better. Always open to everyone.

Comments

Comments

Bring this topic into focus. Add a useful source, a concrete example or a different view.

Sources

Numbers match the citations in the article. A working link isn't proof that a page supports a claim; check the quoted passage and date.

  1. 1
    What is happening to UK prices?
    BBC NewsPublished Oct 21, 2026Checked Oct 21, 2026
    “Inflation in the UK rose to 3.5% in the year to September, the highest rate in nearly a year and above the Bank of England's 2% target. The rise was slightly higher than economists had predicted, driven by higher petrol and diesel prices. Inflation is widely expected to rise again in the coming months. Inflation is the increase in the price of something over time. For example, if a bottle of milk costs £1 but is £1.05 a year later, then annual milk inflation is 5%. The prices of hundreds of everyday items, including food and fuel, are tracked by the Office for National Statistics (ONS). This virtual "basket of goods" is regularly updated to reflect shopping trends, with alcohol-free beer, dashboard cameras, and pet grooming equipment among items added in 2026 , while premium bottled lager and sheets of wrapping paper were removed. The ONS uses price changes in the basket of goods over the previous 12 months to calculate inflation. The main inflation measure is called the Consumer Prices Index (CPI) , external , and the latest figure is published every month. The Bank of England looks closely at the inflation figures when deciding whether to increase, lower or hold its base interest rate, which is currently 3.75%. Putting rates up makes borrowing more expensive, giving people and businesses less money to spend, reducing demand for goods and slowing price rises. But it is a careful balancing act – increasing borrowing costs also risks harming the economy.”
  2. 2
    Do petrol prices rise faster than they fall? Evidence from the UK retail and wholesale petrol sectors
    The Journal of Economic Asymmetries (Amountzias)Published Aug 15, 2023Checked Oct 21, 2026
    “This study investigates the presence of price asymmetries in the UK retail and wholesale petrol sectors over the period of January 2020–July 2022. The scope of this research is to explore whether petrol prices rise faster than they fall according to changes in input costs, namely fuel and international crude oil prices for the retail and wholesale sector respectively. As the time sample considers the shocks of covid-19 restrictions and rising inflation, the presence of structural breaks is assumed which may contribute to asymmetric behaviour. The Autoregressive Distributive Lag (ARDL) approach is implemented in the pricing equation of the model by formulating four versions for each sector, according to the presence of asymmetries and price-cost margins. The results provide significant evidence of price asymmetries in the retail petrol sector; however, such asymmetries are less pronounced over high margin periods. The wholesale sector is found to be more flexible to changes in crude oil prices as asymmetries are less persistent throughout the sample. Therefore, consumers face rigid petrol prices because of retail firms’ decisions, which should be the focus of policy makers.”
  3. 3
    Inflation effects of oil and gas prices in the UK: Symmetries and asymmetries
    Utilities Policy (Abubakar et al.)Published Jul 27, 2024Checked Oct 21, 2026
    “The United Kingdom is among the countries experiencing a cost-of-living crisis believed to be influenced, at least in part, by the dynamics of the international oil and gas markets. To this end, this study aims to achieve to achieve two objectives. Firstly, the dynamic association between the UK's inflation and oil and gas prices is examined. Further, the study examines whether the response of the UK's inflation to energy price dynamics is (a)symmetric. This study adopts wavelet coherency to determine the dynamic co-movement between energy prices and inflation. In addition, the dynamic simulated autoregressive distributed lag model (DS-ARDL) is used to examine the dynamic response of inflation to energy price changes. The estimation results reveal a symmetric response of inflation to gas price shocks. Further, the response of inflation to oil price shocks is asymmetric. Interestingly, the effect of gas price dynamics passes more strongly to inflation than to oil price dynamics. These findings suggest that a more diversified energy mix could help prevent substantial energy price pass-through to inflationary pressures.”
  4. 4
    The Rise and Rise of Inflation
    Significance (O'Neill et al.)Published Apr 1, 2018Checked Oct 21, 2026
    “Where did our current measures of consumer price inflation come from? Who made the important changes that led to the sophisticated methodology we use today, and when were those changes made? Rob O'Neill, Jeff Ralph and Paul Smith explore the history of one of our most important economic indicators”
  5. 5
    The role of inflation in the UK economy in the post-pandemic era
    Contemporary Europe (Podkolzina)Published Apr 15, 2023Checked Oct 21, 2026
    “Based on the analysis of the economic literature, speeches given by the central bank’s staff, official documents and statistical data the author discusses the implicit transition in the regulation approaches used by HM Treasury and the Bank of England. There is some evidence that the cost-of-living crisis as a part of the inflation problem gets a top priority in the post-pandemic era. The government addresses this issue mainly through the income redistribution and benefits and financial support for lower income households. With regard to the inflation problem per se, the official approach implies the shift from monetary to fiscal tools. It means the expanding use of automatic stabilizers through increasing taxes and NICs in accordance with the IMF recommendations. Meanwhile, the Bank of England’s measures are more consistent with the task of financing the government’s borrowing than maintaining the price stability. These findings highlight the rising role of the state in the UK economy. The paper concludes with some comments regarding the split within the conservative party over the marked shifts in the monetary and fiscal policy.”

How it changed

Published 1 time since Oct 21, 2026.

  1. Version 2Oct 21, 2026Live now

    AI-prepared Starting Map from live research.

    • First published version.
Every version, side by side

Help improve it

The brief is open about what's uncertain. These are the specific gaps that new material would fill.

  • “What the latest figures say” rests on one independent source

    A second, independent source that confirms or challenges it would make this part more reliable.

  • “Policy context” rests on one independent source

    A second, independent source that confirms or challenges it would make this part more reliable.

Open questions

  • What does the ONS's own CPI release for September 2026 state, and how large was the gap between the outturn and economists' forecasts?

    No answers yet

  • How much of the September rise came from petrol and diesel versus other categories such as food and services?

    No answers yet

  • What does the Bank of England say about the reading, and does it change expectations for the base rate?

    No answers yet

Explore how this topic connects

Narrower questions connect to broader Sylos. Explore their findings, sources and the people contributing to each.

Ask this Sylo

Answers only from “What is happening to UK prices?”

Ask anything about this page. The AI reads only its reviewed brief, sources and contributions, cites what it used, and says when the page doesn't cover something.