January 2027 Energy Price Cap Forecast: Could Bills Rise 25%?

Energy bills could rise sharply from 1 January 2027. MoneySavingExpert’s roundup for the week beginning 14 September puts the average of three suppliers’ forecasts at £2,152 a year for a typical dual-fuel household paying by Direct Debit. That is around 25% above October’s confirmed £1,723 benchmark. These are forecasts, not announced January prices.

The roundup lists EDF at £2,165, British Gas at £2,160 and E.ON Next at £2,131. EDF’s figure is dated 15 September; the other two are dated 14 September. Against October, the projected increases range from 23.7% to 25.7%. The comparison uses annual consumption of 2,500 kWh of electricity and 9,500 kWh of gas.

The average would represent approximately £429 extra on an annualised basis. It does not mean an additional £429 is payable in January, or that every household’s bill will rise by the same amount. Dividing by 12 gives roughly £36 a month as a budgeting illustration, not a prediction of your Direct Debit.

EDF’s market commentary points to geopolitical uncertainty and lower-than-expected European gas storage as pressures on wholesale prices. Suppliers buy energy in advance, so changes in wholesale markets feed through to household tariffs with a delay. A sharp market movement today does not become tomorrow’s domestic unit rate.

The eventual cap also reflects costs beyond wholesale energy. This is why a chart showing gas prices cannot tell you exactly what your supplier will charge per kWh in January. Ofgem’s published decision will be the figure to use when it is available.

Cornwall Insight’s release dated 26 August forecast £1,872 for January, around 9% above October. That was an earlier market snapshot. It should not be presented as if it were issued alongside the mid-September forecasts. Cornwall also stressed that January would not be confirmed until November and that market conditions could still change.

Compare the date, payment method and assumed consumption before comparing two headlines. A forecast based on a different household usage assumption can look higher even without a comparable change in prices. On this page, the headline range comes from one dated roundup rather than a mixture of incompatible figures.

Find your current tariff name, its end date and your annual gas and electricity usage. If your fix ends during winter, compare the period after it expires as well as the price you pay today. A quote that looks attractive against a January forecast still needs to work over its full contract term.

Try a simple stress test: could your budget absorb a higher energy cost, and what premium would you accept for predictable rates? This is a planning exercise, not a reason to assume the worst forecast will happen. Our fixed-tariff guide explains how to weigh rates, exit fees and flexibility.