When you move into a UK property, contact the existing energy supplier promptly, give your move-in meter readings and ask about available tariffs. You can usually switch supplier, although check your tenancy agreement if energy is included in your rent or managed by your landlord. If paying is difficult, speak to the supplier about affordable payment options and check gov.uk for current help with energy costs and benefits. Eligibility for support depends on your circumstances, so an advice service such as Citizens Advice may also help.