Why UK Inflation Is Rising: Energy Prices, Food Costs and the Winter Outlook
UK inflation has begun moving higher again after easing earlier in 2026. The immediate cause is largely energy: household bills rose when the regulated price cap increased in July, while higher wholesale gas and oil costs began working through transport, business expenses and consumer prices.
The Office for National Statistics reported that the Consumer Prices Index rose by 2.9% in the year to July, up from 2.6% in June. That remains well below the peak reached during the 2022 energy crisis, but it is above the Bank of England’s 2% target.
The energy shock starts with wholesale markets
Ofgem’s price cap does not set a single annual bill for every household. It limits the unit rates and standing charges suppliers can apply to most default tariffs. The amount a household pays depends on consumption, region, payment method and meter type.
For July to September 2026, Ofgem set the typical dual-fuel direct-debit cap at £1,862 a year, 13% higher than in the previous quarter. The regulator said the increase reflected higher wholesale gas prices. Gas became the larger source of the rise, making households especially exposed as colder weather increases demand.
Energy affects inflation in two ways:
- Directly: gas and electricity bills carry significant weight in household price indices.
- Indirectly: fuel, heating and electricity raise the costs faced by shops, manufacturers, farms, transport companies and service businesses.
Those indirect costs can take months to reach final prices. Food is particularly sensitive because production, refrigeration, storage and distribution all require energy.
Why July’s increase may not become another crisis
The current rise does not automatically signal a return to the extraordinary conditions of 2022. The scale and duration of the wholesale energy shock matter more than one monthly inflation reading. A temporary jump can fade as energy prices stabilise and earlier increases drop out of the annual comparison.
The Bank of England expects inflation to rise later in 2026, with its July Monetary Policy Report projecting CPI inflation at about 3.2% in the final quarter. It also says weaker demand, a looser labour market and existing interest-rate pressure should restrain broader price and wage increases.
What households should watch this winter
Ofgem is due to publish the cap for October to December 2026 by 26 August. Forecasts before that announcement cannot establish the final bill level. The key variables are wholesale gas prices, network and policy costs, supplier allowances and how much energy a household uses.
For families, the practical issue is not just the headline inflation rate. It is the combination of energy, rent, food and borrowing costs, which can rise faster than the average basket used to calculate CPI. A household that spends a large share of its income on heating may feel a sharper squeeze even when national inflation appears moderate.