Electricity bills carry a higher tax burden than gas, roughly 25% of the unit price is VAT and environmental levies, compared to 5% on gas. The new Prime Minister has cut the tax on household electricity, as reported by GOV.UK. The move is intended to give households breathing space on the cost of living, but for anyone considering a heat pump, solar panels, or better insulation, the cut changes the maths on payback periods and running costs.
Who qualifies, and who doesn’t
The tax cut applies to all domestic electricity bills in Great Britain, regardless of supplier or tariff. Ofgem’s price cap already sets a maximum unit rate, and the government’s reduction in VAT, from 20% to 5% on the energy component, will appear as a lower standing charge or unit rate from the next billing cycle. Households on prepayment meters and standard variable tariffs both benefit. The catch is that the cut is temporary, currently confirmed until March 2027. Beyond that, the Treasury has not committed to an extension.
What it costs a typical 3-bed semi
A typical household using 2,900 kWh of electricity per year on the price cap sees a saving of roughly £120 annually from the VAT cut alone. If environmental levies are also reduced, as some reports suggest, the saving could reach £180. For a home with a heat pump, which uses around 4,500 kWh of electricity annually, the saving jumps to £190–£280 per year. That makes the running cost of a heat pump roughly 10–15% lower than it was last month. Energy Saving Trust data shows the average heat pump now costs about the same to run as a modern gas boiler, before accounting for any solar self-generation.
But what about the EPC impact?
Lower electricity costs improve the case for electrifying heating, but the EPC rating itself depends on the efficiency of the heat pump and the building fabric. A poorly insulated home still leaks heat, regardless of fuel price. The tax cut does not change the fact that cavity wall insulation (£1,500–£3,000) and loft insulation (£500–£1,000) remain the cheapest ways to move from an EPC D to C. What the cut does is make the annual running cost of an electric heating system more competitive, which may nudge homeowners who were on the fence about heat pumps to apply for the Boiler Upgrade Scheme grant of £7,500.
What homeowners should do now
Check your latest bill for the unit rate and standing charge. If the tax cut has not yet appeared, contact your supplier, they are required to pass it on within one billing cycle. Then compare the new electricity rate against your gas rate. If the gap has narrowed to less than 3p per kWh, a heat pump becomes a serious contender. For those planning solar panels, lower electricity costs mean a slightly longer payback period for the panels themselves, but the combination of solar + heat pump still offers the best long-term hedge against gas price volatility. Apply for the Boiler Upgrade Scheme before 31 March 2027 to lock in the grant while the tax cut is in place.
Frequently Asked Questions
Yes, if your supplier passes the reduction on promptly. Check your next bill for a lower unit rate or standing charge. If it hasn't changed after one billing cycle, contact your supplier.
Slightly, because the electricity you export is worth less if grid prices are lower. But solar panels still reduce your overall bill by 40–60%, and paired with a heat pump they remain a strong investment for energy independence.
