Higher Energy Bills to Hit Millions of Britons from October: Ofgem Cap Reaches 3-Year High

Millions of households across Britain will pay more for their gas and electricity from 1 October, after regulator Ofgem confirmed a 4 per cent rise in its energy price cap for the final three months of 2026.

The new cap sets a typical annual bill for a dual-fuel household paying by direct debit at £1,723 ($2,343), up £60 ($82) a year, or around £5 ($7) a month, from the current £1,663 ($2,262). Ofgem said the cap covers roughly 22M households on default tariffs, limiting what suppliers can charge per unit of energy rather than putting a ceiling on any single bill. About 11M households on fixed deals will not be affected.

Ofgem announced the change on 26 August 2026. It attributed the increase to higher wholesale gas prices tied to the ongoing conflict in the Middle East, which it called the dominant driver of recent price swings. Wholesale costs have risen about 11 per cent over the past three months.

A Three-Year High Heading Into Winter

The headline figure understates how the cap compares with earlier years, because Ofgem lowered its definition of a typical household in July. Measured on the previous consumption basis, which allows a like-for-like comparison, the cap rises from £1,862 ($2,532) to £1,935 ($2,632). Adjusted for inflation, Ofgem said the new level runs 7 per cent above the same quarter in 2025.

Independent analyst Cornwall Insight, whose final forecast matched the official rise, said the cap would reach its highest level since July 2023 on a unit-for-unit basis. On the previous basis, the cash rise works out at £73 ($99) a year. Its principal consultant, Dr Craig Lowrey, said the latest hike was 'driven by international conflict rather than domestic policy,' and warned it would fall hardest on struggling households as winter approaches.

The rise is uneven. Ofgem said gas bills would climb about 8 per cent, while households that do not use gas would see an increase of less than 1 per cent. Electricity costs stay broadly stable because the government removed VAT from domestic electricity bills from the same date. Without that intervention, Ofgem said, the typical bill would have been around £45 ($61) higher.

Prices still sit well below their peak. Ofgem noted the cap remains 52 per cent lower than in 2022, when the government stepped in to hold bills at £2,500 ($3,400) during the height of the energy crisis.

What Households Can Do to Cut Costs

Ofgem said savings are available for those willing to shop around. Neil Kenward, its director general for markets, said fixed tariffs were on offer at £100 ($136) or more below the October cap, and that some suppliers reward smart meter customers with cheaper electricity used outside peak hours.

How people pay also matters. Under the October cap, prepayment customers face the lowest rates, at £1,678 ($2,282), an average of around £45 ($61) a year less than direct debit. Those who pay on receipt of a bill are charged the most, at about £1,861 ($2,531). Anyone struggling to keep up should speak to their supplier first, the regulator said, noting that firms must offer support such as affordable repayment plans.

Energy Debt Climbs to Record Levels

The rise lands as household energy debt reaches record levels. Trade body Energy UK said domestic customers owed around £6B ($8.2B) at the end of June 2026, a figure it expects to reach £7B ($9.5B) by the end of the year without action. More than 3M customers are now in debt or arrears, owing an average of about £1,800 ($2,450), the group said.

That debt is spread across every bill. Energy UK said it already adds roughly £50 ($68) a year, or about 3 per cent, to a typical annual charge.

A separate Ofgem plan to write off about £500M ($680M) of debt for the poorest customers needs government legislation and has yet to move forward.

Further increases may follow. Cornwall Insight forecasts another rise in January, though it cautioned that its view could shift given volatile wholesale markets.

Ofgem is due to confirm the January cap in November.