What to do if your energy tariff is ending

Key takeaways

• As your fixed-rate tariff nears its end, explore other tariffs for potentially lower prices, better customer service, or renewable energy options

• If you don’t switch after your tariff ends, you’ll be placed on a standard variable tariff which Ofgem caps

• Until 30 September 2025, the energy price cap stood at £1,720. This has risen to £1,755 for the period 1 October to 31 December 2025

• Switching early might incur exit fees, typically ranging from £30 to £50, so weigh these fees against potential savings from a new tariff

How do I find out when my energy tariff ends?

Your energy provider is legally required to notify you between 42 to 49 days before your tariff ends, giving you ample time to make a decision about your next steps.

If you're outside this window, you can find out this information yourself if you're still a way off your end date by:

• Checking your bill: Find your most recent energy bill and your end date will be provided in the section dedicated to your key information, which includes details such as your tariff name and your account number.

• Checking in with your provider: If the information isn't clear on your bill, or if you have further questions, give your energy provider a call. Having your account number handy will expedite the process.

If you switch before your tariff end date ‘window’, you’ll be subject to an exit fee which is charged per fuel.

What should I do when my tariff is ending?

At the end of your fix, you'll likely be moved onto your supplier’s variable rate tariff unless they offer you a new fixed rate.

Before you're moved onto a variable rate, we'd recommend shopping around. If you can find a fixed rate tariff that's below the current price cap (£1,755), you'll probably save money over the course of your contract term.

For reference, here are the current unit rates and standing charges set by Ofgem for the October–December 2025 price cap period (for customers paying by Direct Debit, including 5% VAT):

What happens if I don’t switch after my tariff end date?

Failing to switch after your tariff ends isn't the end of the world, but it does have financial implications:

• You'll be placed on a standard variable tariff, which is capped by Ofgem. Until 30 September 2025, the average annual bill for such tariffs, paid by Direct Debit, was £1,720. This has now risen to £1,755 for 1 October to 31 December 2025.

• The cap is subject to change every quarter. However, keep in mind that the cap limits unit prices, not total bills — your actual costs depend on your usage and payment method.

Related: What is the energy price cap?

Can I switch energy providers before my tariff end date?

You can switch early, but suppliers often charge exit fees. These typically range from £30 to £50 per fuel. It's essential to balance any potential exit fees against the savings a new tariff might offer.

If you're sticking with the same energy provider but want to change your tariff, there may be some wiggle room but this is purely at the discretion of your provider.

Your energy bill should indicate whether you have exit fees. Alternatively, contact your provider for this information.

What if my business energy tariff is ending?

Business energy contracts have their own set of rules:

• You can only compare and switch business energy contracts during the designated 'switching window' before your contract's end date

• Not switching or renewing can lead to expensive 'out-of-contract' rates or 'rollover' contracts

• It's crucial to compare and secure a new business energy deal during the switching window to avoid unnecessary costs