> ## Content Index
> Fetch the complete content index at: https://bullquill.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# UK inflation September 2026: CPI rises to 3.5% on fuel costs
- URL: https://bullquill.com/uk-inflation-rises-to-3-5-percent-september/
- Published: 2026-10-21T09:14:26.000Z
- Updated: 2026-10-23T17:29:02.000Z
- Description: Petrol averaged 169.5p per litre, the highest since August 2022, while services inflation climbed to 3.7%. The figures land before the 28 October Budget and the Bank of England's 5 November rate decision.
- Author: Rowan Ashby
- Tags: Economy, Trending, #lang-en, #tr-uk-inflation-rises-to-3-5-percent-september

## Key takeaways

- UK consumer price inflation (CPI) rose to 3.5% in the 12 months to September 2026, up from 3.1% in August, according to the Office for National Statistics (ONS).
- Motor fuels were the main driver: fuel prices were 29.8% higher than a year earlier, and petrol averaged 169.5p per litre, the highest since August 2022.
- Price pressure broadened: core CPI rose to 2.8% from 2.6%, goods inflation climbed to 3.2% and services inflation to 3.7%.
- Food inflation held at 1.3%, and restaurants and hotels provided the largest offsetting downward effect.
- The release comes two weeks before the Bank of England's 5 November rate decision and one week before the 28 October Budget, on the same morning that ONS borrowing figures came in above official forecasts.

UK inflation rose to 3.5% in the 12 months to September 2026, up from 3.1% in August, the Office for National Statistics said on 21 October. Motor fuels were the main driver, with fuel prices 29.8% higher than a year earlier.

The broader CPIH measure, which includes owner occupiers' housing costs and council tax and is the ONS's lead measure, rose to 3.6% from 3.3%.

## The September figures at a glance

The table below sets out the headline and component rates published in the ONS bulletin. All figures are 12-month rates unless stated otherwise.

| Measure                                         | August 2026 | September 2026 | Monthly change, Sep 2026 |
| ----------------------------------------------- | ----------- | -------------- | ------------------------ |
| CPI (all items)                                 | 3.1%        | 3.5%           | +0.4%                    |
| CPIH (all items)                                | 3.3%        | 3.6%           | +0.4%                    |
| Core CPI (excl. energy, food, alcohol, tobacco) | 2.6%        | 2.8%           | +0.2%                    |
| CPI goods                                       | 2.7%        | 3.2%           | +0.8%                    |
| CPI services                                    | 3.4%        | 3.7%           | 0.0%                     |
| Transport (division)                            | 4.6%        | 6.6%           | \-0.4%                   |
| Motor fuels                                     | 23.0%       | 29.8%          | n/a                      |
| Housing and household services (CPI)            | 4.9%        | 5.3%           | +0.6%                    |
| Food and non-alcoholic beverages                | 1.3%        | 1.3%           | \-0.2%                   |
| Restaurants and hotels                          | 4.1%        | 3.8%           | n/a                      |

*Source: ONS, Consumer price inflation, UK: September 2026, published 21 October 2026 (data as of 21 October 2026, 06:00 UTC). "n/a" means the monthly figure was not given in the summary used for this article.*

## What drove the jump

### Fuel at the pump

The ONS said transport, mainly motor fuels, made the largest upward contribution to the change in the annual rate between August and September. The annual rate for the transport division rose to 6.6% from 4.6%, and motor fuel prices were 29.8% higher than a year earlier, up from 23.0% in August. The statistics office put the average price of petrol at 169.5 pence per litre and diesel at 192.5 pence per litre in September, the highest levels since August 2022 and July 2022 respectively. Transport alone contributed 0.94 percentage points to the 3.5% CPI rate.

Prices across the transport division actually fell 0.4% during September itself. The annual rate still rose because the fall was smaller than the one recorded a year earlier. Air fares show the same effect. They fell 19.5% between August and September, a normal seasonal drop after the summer peak, but that was much less than the 28.8% fall in the same period of 2025\. The ONS said the upward effect came mostly from European routes.

The same fuel shock is visible elsewhere. In the United States, [higher gas prices are straining household budgets and food banks](https://bullquill.com/us-gas-prices-strain-household-budgets/), while refiners are reporting much fatter margins: [Valero's third-quarter profit rose to $6.8 billion](https://bullquill.com/valero-q3-2026-results-refining-margins/). Rising rates have also hit bond portfolios, as shown by [Norway's wealth fund posting a -0.5% third-quarter return](https://bullquill.com/norway-wealth-fund-q3-negative-return/).

### Household energy and housing costs

The CPI housing and household services division rose to 5.3% from 4.9%. Within the CPIH breakdown, the ONS reported that kerosene, a heating fuel used mainly in homes off the gas grid, was up 22.7% on the year. Electricity, gas and other fuels contributed 0.19 percentage points to CPIH, their largest contribution since September 2025\. Owner occupiers' housing costs, which appear only in CPIH, rose 4.0%, up from 3.9%.

### Goods and services both firmer

The rise was not limited to energy. Goods inflation went up to 3.2% from 2.7%, and services inflation to 3.7% from 3.4%. Core CPI, which excludes energy, food, alcohol and tobacco, rose to 2.8% from 2.6%. Recreation and culture added upward pressure, with its annual rate climbing to 2.3% from 1.6%. The ONS pointed to computer game downloads and live music, with smaller effects from package holidays, cultural events and some electronics.

### Food steady, hospitality cooler

Food and non-alcoholic beverage prices rose 1.3% on the year, the same rate as in August, and fell 0.2% during the month. The ONS said food's contribution to CPIH was the smallest since September 2021\. Restaurants and hotels made the largest downward contribution, with that division's rate easing to 3.8% from 4.1%. Hotel prices rose 2.3% during the month, compared with 3.8% a year earlier.

The ONS bulletin also noted that the Food and Drink Federation expects food inflation to "arrive later and persist for longer". The Bank of England made a similar point in September. It said indirect effects of the energy shock on supply chains, particularly in food, had been small so far but may have been "delayed rather than avoided".

## The Bank of England's rate path

At its last meeting, which ended on 16 September 2026, the Bank of England's Monetary Policy Committee (MPC) held Bank Rate at 3.75% by a 6–3 vote. Andrew Bailey, Sarah Breeden, Swati Dhingra, Clare Lombardelli, Dave Ramsden and Alan Taylor voted to hold. Megan Greene, Catherine L Mann and Huw Pill voted for a rise of 0.25 percentage points to 4%.

In its September summary the Bank said CPI inflation was likely to keep rising. It expected the rate to reach about 3¾% in the fourth quarter of 2026 and slightly above 4% in the first quarter of 2027\. It estimated that about 0.7 percentage points of August's 1.1-point overshoot above the 2% target came directly from energy, mostly motor fuels. The committee judged that risks to the outlook were skewed to the upside, more so than in July, and noted that Ofgem's energy price cap is expected to rise substantially again in early 2027\. The Bank said: "Monetary policy is being set to ensure inflation comes down to 2% sustainably."

September's 3.5% reading is consistent with the upward path the Bank described. It does not by itself show whether inflation is running ahead of or behind the Bank's quarterly projection. The next MPC decision, with the November Monetary Policy Report, is due on 5 November 2026.

## Budget and borrowing

The inflation data arrived on the same morning as the ONS public sector finance statistics. These were the last major official figures before Chancellor John Healey presents the Budget on Wednesday 28 October, when the Office for Budget Responsibility (OBR) will also publish its updated economic and fiscal forecast.

The ONS said public sector net borrowing was £24.5 billion in September 2026\. That was £1.8 billion more than a year earlier and £1.9 billion above the OBR's forecast. Borrowing in the financial year to September totalled £97.8 billion, £4.4 billion less than in the same period of 2025 but £6.0 billion above the OBR forecast. Central government debt interest was £10.9 billion in September, of which £4.0 billion reflected the inflation uplift on index-linked gilts, linked mainly to a 0.6% rise in the Retail Prices Index between June and July.

This is the link between inflation and the Budget debate. Higher inflation raises the cost of servicing index-linked debt, and it can feed into the OBR's forecasts for spending and tax receipts. The Treasury has said the Budget will meet the government's fiscal rules. How the OBR's new forecasts treat the recent rise in energy-driven inflation will not be known until 28 October.

## What is still unknown

- **How long the fuel effect lasts.** The annual rate depends on future pump prices and on how they compare with last year's levels. The Bank of England has said developments in the Middle East could change the outlook significantly.
- **Second-round effects.** Higher energy costs could still pass through to food and services prices with a lag. The September data show stable food inflation but firmer core and services inflation.
- **The MPC's reaction.** Three members already voted for a rise in September. The full committee's view will be clear only on 5 November.
- **The fiscal picture.** Borrowing is above the OBR's earlier forecasts. Whether that leads to tax or spending changes will be known only when the Budget is presented.

## What it means

For households, September's figures mean prices are rising faster than they were in August, mainly because of fuel. Food prices, however, have stayed comparatively stable. For the Bank of England, a rising headline rate together with firmer core and services inflation strengthens the case made by the three members who voted for a rate rise in September. The majority has so far chosen to hold, and the Bank's own projections already assumed inflation would keep climbing into early 2027\. For the Treasury, higher inflation adds to debt interest costs at a time when borrowing is running above forecast, one week before the Budget. The next data points to watch are the Bank's 5 November decision and the October CPI release, which the ONS has scheduled for 18 November 2026.

## Related coverage

- [Why the Fed Is Weighing Another Rate Hike Before Its Oct. 28 Decision](https://bullquill.com/fed-october-meeting-rate-hike-debate-explained/)
- [RBA's Hauser says inflation outlook worse, November hike undecided](https://bullquill.com/rba-inflation-outlook-worse-november-hike-uncertain/)
- [Europe daily brief: STOXX 600 dips as oil eases, France weighs](https://bullquill.com/europe-stocks-daily-brief-2026-10-21/)
- [Forex brief: dollar steadies near 101.7 as yen and euro stay weak](https://bullquill.com/forex-daily-brief-2026-10-21/)

## Frequently asked questions

### What was UK inflation in September 2026?

The ONS said CPI inflation was 3.5% in the 12 months to September 2026, up from 3.1% in August. The broader CPIH measure rose to 3.6% from 3.3%.

### Why did UK inflation rise in September 2026?

The largest upward contribution came from transport, mainly motor fuels, which were 29.8% higher than a year earlier. Goods, services and core inflation also rose, while restaurants and hotels had the largest downward effect.

### When does the Bank of England next decide on interest rates?

The next Monetary Policy Committee decision is due on 5 November 2026\. In September the committee held Bank Rate at 3.75% by a 6-3 vote, with three members voting for a rise to 4%.

### When is the next UK inflation release?

The ONS has scheduled October 2026 consumer price inflation figures for 18 November 2026.

## Sources

- [Office for National Statistics: Consumer price inflation, UK: September 2026](https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/september2026?ref=bullquill.com)
- [GOV.UK: Consumer price inflation, UK: September 2026 (release announcement)](https://www.gov.uk/government/statistics/announcements/consumer-price-inflation-uk-september-2026?ref=bullquill.com)
- [Bank of England: Monetary Policy Summary and minutes, September 2026](https://www.bankofengland.co.uk/monetary-policy-summary-and-minutes/2026/september-2026?ref=bullquill.com)
- [Office for National Statistics: Public sector finances, UK: September 2026](https://www.ons.gov.uk/economy/governmentpublicsectorandtaxes/publicsectorfinance/bulletins/publicsectorfinances/september2026?ref=bullquill.com)
- [HM Treasury: Chancellor letter to the Treasury Select Committee on the Budget 2026 date](https://www.gov.uk/government/publications/chancellor-letter-to-the-treasury-select-committee-tsc-budget-2026-date?ref=bullquill.com)

This article is for information only and is not investment advice.