UK Inflation Rises to 3.1% as Higher Fuel Costs Put Pressure on Household Budgets

Inflation in the United Kingdom rose to 3.1% in August 2026, according to the latest available figures from the Office for National Statistics.

The Consumer Prices Index (CPI), which measures changes in the prices of goods and services purchased by households, increased from an annual rate of 2.9% in July.

The rise means that the overall pace of consumer price increases accelerated during August.

Transport costs, particularly motor fuels, were the largest contributor to the increase in the annual inflation rate.

The figures were published on 16 September and remain the latest official monthly inflation data as of 8 October.

Fuel prices push inflation higher

The ONS identified transport as the biggest upward contributor to the change in the annual rate of inflation.

Transport inflation increased from 3.6% in July to 4.6% in August.

Changes in petrol and diesel prices can affect households directly through the cost of running vehicles.

They can also create pressure for businesses that depend on transport, although any resulting changes in retail prices may take time and depend on other factors.

For households already managing rent, mortgages, food bills and utility costs, further increases in transport spending can reduce the money available for other purchases.

What about food prices?

The ONS reported that annual food and non-alcoholic beverage inflation was 1.3% in August, unchanged from July.

This was considerably lower than the headline inflation rate.

However, lower food inflation does not necessarily mean the cost of an average shopping basket is falling.

It means that the measured rate at which those food prices are increasing is relatively low compared with the previous year.

Individual products can still become more expensive or cheaper at different rates.

Inflation remains above the Bank of England's target

The Bank of England is responsible for monetary policy aimed at keeping inflation sustainably at 2%.

At 3.1%, the August CPI figure remained above that target.

A separate measure, CPIH, which includes owner-occupiers' housing costs, reached 3.3% in August, compared with 3.1% in July.

The different measures provide complementary information about changes in prices faced by households.

The Bank of England held interest rates at 3.75% in September, with policymakers expressing concern about persistent energy-related inflation pressures.

Does higher inflation mean prices are rising faster?

Inflation is often misunderstood.

An annual inflation rate of 3.1% does not mean that prices increased by 3.1% in August alone.

It means that the CPI basket of goods and services was, on average, 3.1% more expensive than in August 2025.

The actual month-on-month CPI increase in August 2026 was 0.5%.

Equally, a future fall in the inflation rate would not automatically mean prices were falling. Prices could still be increasing, but at a slower pace.

What happens next?

The next official inflation figures are scheduled for 21 October 2026.

Those figures will provide a clearer indication of whether inflation continued to accelerate in September.

Inflation developments will also be important ahead of the Bank of England's November interest rate announcement.

For households, the crucial question is whether growth in wages and other income can keep pace with changes in essential living costs.

Keep Updated UK will continue examining inflation, household finances and the economic decisions affecting everyday costs.