Bank of England faces fresh headache as UK energy bills climb for the second straight quarter

British households just caught a break from inflation. Now that break is over.

Ofgem, the UK’s energy regulator, announced a 4% increase to the domestic energy price cap effective October 1 through December 31, 2026. The move raises the typical annual bill for a dual-fuel household paying by direct debit to £1,723, a £60 bump from the current cap of £1,663.

What’s driving the increase

The culprit is familiar: wholesale gas prices. They’ve surged 61% over the past three months, driven largely by escalating tensions in the Middle East, particularly involving Iran.

Gas unit rates are set to climb 8.7% to 7.97p per kilowatt-hour. Electricity, by contrast, is barely budging, with rates rising just 0.8% to 26.32p/kWh. That modest electricity number is partly thanks to the government’s temporary removal of VAT on electricity bills, a measure that saves households roughly £45 annually on the energy cap, independent of Ofgem’s quarterly adjustments.

This latest hike lands on top of a 13% increase that took effect in July 2026. Back-to-back rises have pushed bills to their highest point in three years. Roughly 22 million households on standard variable tariffs will feel the impact. The approximately 11 million customers who locked in fixed-rate deals are, for now, insulated.

Analysts at Cornwall Insight are already projecting a potential further increase of 9% in January 2027.

Why the Bank of England cares deeply

The energy price cap was first introduced in 2019 and is reviewed quarterly by Ofgem. It protects around 65% of UK energy customers against supplier overcharging, effectively setting a ceiling on what providers can charge per unit of gas and electricity. But the cap follows wholesale markets with a lag, meaning the current increase reflects price movements that have already occurred, not a forecast of where energy costs are headed.

The political dimension

The government’s VAT removal on electricity was designed as a visible, tangible benefit for consumers. But a £45 annual saving looks modest next to a £60 increase, and the optics of that math are not favorable. If Cornwall Insight’s January 2027 projection proves accurate, the gap between what the government is giving and what the market is taking will only widen.

For 22 million households adjusting their budgets this autumn, the £60 annual increase translates to roughly £5 more per month, a figure that’s cumulative alongside July’s 13% jump. Three years of relative relief on energy costs are firmly in the rearview mirror.

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