Why Your Energy Bill Is Going Up — and What It Means for Prices Everywhere

UK inflation is expected to have risen to 2.9% in July 2026, up from 2.6% in June. The main reason: Ofgem — the regulator that sets a limit on how much energy companies can charge households — raised that limit by 13% in July. Official confirmation comes on 19 August, and economists surveyed by The Guardian expect the number to land at 2.9%. The Guardian

Inflation is the rate at which prices for everyday goods and services go up over time. When inflation rises, your money buys less. The 13% cap increase pushed average annual household energy bills to £1,862. Thomas Pugh, an economist at RSM UK, says the cap rise alone will add about 0.44 percentage points to the inflation rate. Energy is the biggest single reason for the July jump, though not the only one. Reuters

The broader context here is the ongoing Iran war, which continues to shake up global energy markets and make oil prices unstable. UK inflation had been on track to fall close to the government's 2% target before the conflict started. A brief pause in fighting earlier in the summer let June's inflation dip to 2.6%, down from a high of 3.8% the year before. That break now looks short-lived. Reuters

The Bank of England — the UK's central bank, which manages interest rates — expects inflation to reach 3.2% before the end of 2026. At its July meeting, the committee that sets rates voted 6-3 to keep the Bank Rate at 3.75%, saying they wanted to wait and see how the Iran war affects prices at home. With July's numbers likely to confirm those worries, the Bank is now considering raising interest rates as early as September. Reuters

Interest rates are the Bank's main tool. When rates go up, borrowing becomes more expensive, which tends to slow spending and cool prices down — but it can also slow the economy.

Businesses are also expecting to raise their own prices. A Bank of England survey showed companies planning to increase their prices by 4.1% over the coming year, up from 4.0% previously. That suggests cost pressures may be working their way into wages and everyday prices, even though separate data expected this week is likely to show wage growth continuing to slow. Reuters

The inflation comeback complicates what had been a good economic story. Britain's economy grew faster than any other G7 nation in the first half of 2026, according to official figures released in August. A rate rise in September would test whether that growth can last, especially if the Bank believes inflation is becoming a permanent problem rather than a temporary one.

For Andy Burnham's government, the timing is tough. The renewed squeeze on household budgets arrives just before what is already expected to be a difficult autumn budget, leaving less room for help with bills. The energy cap rise and broader inflation will increase political pressure to step in, even as Treasury planners weigh competing demands.

More household cost pressures could be coming. Ofwat, the water regulator, is looking at plans for "surge pricing" — charging customers more for water during droughts, when usage is high, and less in winter. The idea is still at the proposal stage, but it would add another seasonal charge to household bills at a time when energy costs are already elevated.

The Office for National Statistics (ONS), which measures inflation, has also changed how it tracks grocery prices. Since the February 2026 figures, the ONS has used scanner data — information collected at supermarket checkouts and online — covering about 50% of the UK grocery market. That means roughly 300 million price points from sales of over a billion items per month. The ONS found that its older method would have produced a slightly higher grocery inflation reading of 3.1% for the year to February 2026, compared with the official 3.0% — suggesting the new method is slightly lowering the measured rate. ONS

The government's Great British Summer Savings scheme, announced on 21 May and effective from 25 June, did not affect the June 2026 inflation figures because it started after the data was collected. The scheme could affect a small number of items the ONS tracks, such as tickets to attractions and cultural events, and might have a small downward effect on the July numbers. ONS

The direction is now clear, even if the exact size is not. Inflation fell to 2.8% in April — its lowest since March 2025 — then to 2.6% in June. July's expected 2.9% reverses that downward trend. The Bank's forecast of 3.2% by year-end, combined with businesses expecting to raise prices above 4%, suggests the period of falling inflation that began in late 2025 has stalled. Whether that stall turns into a longer-term rise depends mostly on what happens with the Iran conflict and how it affects energy markets — things the Bank of England cannot control.

What policymakers can control is their response. A rate rise in September would show the Bank sees this as more than a one-off blip from the energy cap. The 6-3 vote at the July meeting already showed a group ready to act. If Wednesday's figures confirm the 2.9% forecast, the question for September is no longer whether to raise rates, but how aggressively.