Switching energy supplier is free, your gas and electricity stay on throughout, and your new supplier does the work. A switch should complete within 5 working days; if it doesn't, you're owed £40.
Checked 7 October 2026Written by the MyBillChecker team
Choose a new tariff. You'll need your postcode, usage and payment method; your bill has all three.
Your new supplier arranges the switch. You don't need to contact your old one.
Give a meter reading on switch day so both bills are accurate.
Get your final bill. Your old supplier must send it within 6 weeks, or pay you £40.
Your rights when switching
14-day cooling-off period: you can cancel without paying.
No exit fees on standard variable tariffs, or in the last 49 days of a fixed deal.
£40 automatic payment if the switch is late or the final bill is over 6 weeks late.
Credit refunded: any credit on your old account should be paid back.
Can I switch if I owe money?
If you pay by direct debit or bill and the debt is over 28 days old, your old supplier can stop the switch until it's paid. If you're on prepayment, you can often switch with a debt, which moves to your new supplier. Ask your supplier what limit applies. [Check the current limit before publishing.]
Frequently asked questions
Will my supply be cut off?
No. Only the company billing you changes.
Do I need a new meter?
No. Smart meters can occasionally stop working in smart mode after a switch; report it if so.
