If you’re on a fixed-rate tariff and want to switch suppliers, you’ll usually have to pay an exit fee to get out of your contract unless you’re within 49 days of the tariff end date. Even if you do have to pay a fee, it might still be worthwhile making the switch. Work out how much you could save by switching to another supplier and subtract the exit fee, to see if you’d be better off. If you’re on a standard variable tariff, you won’t usually be required to pay an exit fee.