How Much Does British Gas Cost in the UK?
British Gas charges the average UK household around £130 per month for dual fuel (gas and electricity). As the UK's largest energy supplier, serving approximately 7 million homes, British Gas prices are governed by Ofgem's quarterly price cap on standard variable tariffs. Fixed-rate deals may be priced above or below the cap.
| Tariff Type | Typical Monthly Cost | Contract Length | Key Feature |
|---|---|---|---|
| Standard Variable (Flex) | £130 | Rolling monthly | Price cap protected |
| Fixed Price (Future) | £125–£140 | 12 months | Price certainty |
| Green Future | £130–£135 | 12 months | 100% green electricity |
| HomeCare Cover | £12–£30 add-on | 12 months | Boiler and home emergency cover |
British Gas is part of the Centrica group and has a long-standing presence in UK energy. According to Ofgem's latest data, the price cap for a typical dual fuel household stands at roughly £1,568 per year. British Gas also offers HomeCare packages for boiler cover and home emergencies, which are billed separately.
For a full comparison of UK energy suppliers, see our guide to UK Utilities subscriptions.
Does British Gas Auto-Renew?
Yes, British Gas bills automatically renew each month via direct debit. Your monthly payment is set based on estimated annual consumption, spread evenly across 12 months. British Gas reviews your direct debit amount at least once a year to ensure it reflects your actual usage.
If you are on a fixed-rate tariff, British Gas will write to you at least 49 days before the deal ends. At that point, you can choose a new deal, switch supplier, or be automatically moved to the standard variable tariff. According to Citizens Advice data, 38% of UK energy customers are on default variable tariffs and could save by switching.
How to Cancel British Gas
Leaving British Gas is managed through your new energy supplier. You do not need to contact British Gas directly to cancel — the switching process is handled automatically under Ofgem's switching guarantee.
Step-by-step process
- Compare energy deals on Uswitch, MoneySupermarket, or directly with suppliers
- Sign up with your chosen new supplier
- The new supplier notifies British Gas and manages the switch
- The switch completes within 5 working days
- British Gas sends a final bill and refunds any credit balance within 10 working days
- No exit fees apply on standard variable tariffs
Fixed-rate tariff customers should check for exit fees before switching. British Gas typically charges £30 per fuel (up to £60 total) for early exit from fixed deals, though this varies by tariff.
For alternative suppliers, see our guides to Octopus Energy and EDF Energy.
Is British Gas Worth It in 2026?
British Gas offers reliability and brand recognition but is rarely the cheapest option. Its strength lies in bundled services like HomeCare boiler cover and the Hive smart home ecosystem.
| Pros | Cons |
|---|---|
| UK's largest supplier with nationwide engineer network | Typically not the cheapest energy supplier |
| HomeCare boiler and home emergency cover available | Customer service ratings lower than Octopus Energy |
| Hive smart thermostat integration | Exit fees on some fixed tariffs (up to £60) |
| British Gas Rewards loyalty programme | Standard variable tariff is price cap maximum |
| Physical presence with local engineers | App can be slow to update meter readings |
British Gas's biggest advantage is its engineer network — the largest in the UK with over 9,000 engineers. If you value bundled boiler cover alongside your energy supply, British Gas HomeCare is a competitive option. However, for energy supply alone, Octopus Energy and OVO Energy consistently score higher for value and customer service.
Track Your British Gas Subscription with Prunely
Prunely lets you add your British Gas direct debit to see exactly when your next payment date falls. Set custom reminders so you get an alert before you are charged. Track your energy spending alongside all your other subscriptions — broadband, insurance, streaming, and more — without connecting a bank account. Prunely is free for up to 5 subscriptions.
Frequently Asked Questions
How much does British Gas cost per month in the UK?
The average British Gas bill is around £130 per month for dual fuel (gas and electricity) in a typical UK household. Your actual cost depends on property size, energy efficiency, and usage. All standard variable tariffs are capped by Ofgem's price cap, set quarterly.
Is British Gas more expensive than other suppliers?
British Gas standard variable tariff is priced at or near the Ofgem price cap, which is the same maximum for all suppliers. However, fixed deals and specialist tariffs from suppliers like Octopus Energy may undercut British Gas. Always compare deals before your fixed tariff ends.
Are there exit fees for leaving British Gas?
Standard variable tariff customers can switch at any time with no exit fees. Fixed-rate tariff customers may face exit fees of up to £30 per fuel (£60 total). Check your tariff terms in your British Gas online account or on your latest statement before switching.
Does British Gas offer green energy?
British Gas offers a Green Future tariff that includes 100% renewable electricity backed by REGO certificates. The gas element is carbon-offset. For fully renewable energy as standard, suppliers like Octopus Energy include green electricity on all tariffs.
How do I track my British Gas spending?
Add your British Gas direct debit to Prunely to track your monthly payments alongside all your other subscriptions. You can also check usage through the British Gas app or website, which shows daily consumption data for smart meter customers.