Can You Switch Energy Supplier If You’re in Debt or on a Prepayment Meter?

If you’re in debt to an energy supplier or use a prepayment meter, you might worry that switching energy suppliers is impossible. You might even worry that it just isn’t an option for you. That’s a very common worry.

But the good news is that, in most cases, it is possible to switch. The rules are designed to protect you, not prevent you from switching.

In this guide, we will explain what is and isn’t possible, so you can make an informed decision without having to sift through complex rules.

Quick answer: Can I switch?

Your situationCan you switch?What to know
Debt under £500 (per fuel)Yes, usuallyYou don’t need to clear the debt first
Debt over £500 (per fuel)Not directlyYou may be able to switch via the Debt Assignment Protocol
Prepayment meter (traditional)YesFewer tariffs, but switching is still possible
Smart prepayment meterYes, often easierMore suppliers and flexible options
Want to move to a credit meterSometimesMay depend on credit checks and meter type

Switching Energy When You’re in Debt — The Ofgem Rules Explained

Energy suppliers are governed by rules set by Ofgem. These rules include guidelines on what to do when you’re in debt.

Here’s how it works:

  • If you owe less than £500 per fuel (gas and electricity are counted separately), your supplier will usually allow you to switch
  • If you owe £500 or more, your supplier can block the switch
  • The £500 limit applies to each fuel individually, not your total combined debt
  • You don’t have to pay off the debt before switching if you’re under the threshold

One important thing to keep in mind: switching supplier doesn’t make the debt disappear. It simply means you’ll pay your ongoing energy bills to a new provider.

What Is the Debt Assignment Protocol (DAP)?

If your debt is £500 or more, there might be a way to switch your supplier, and this is through a thing called the Debt Assignment Protocol (DAP).

This is a voluntary scheme that allows some customers to move their debt to a new supplier when they switch.

In simple terms:

  • Your new supplier takes on the debt
  • You repay it through your new account, usually via an agreed plan
  • Not all suppliers take part, so availability can vary

If you think this could apply to you, it’s worth speaking to:

  • Your current supplier
  • Citizens Advice
  • The Energy Ombudsman

They can help you understand if this option might be open to you.

What Happens to Your Debt When You Switch?

It’s completely understandable to wonder what happens to the money you owe if you move supplier.

Here’s the key point: your debt stays where it is.

  • You’ll still owe the money to your old supplier
  • They can continue to contact you and arrange repayment
  • Switching does not reduce or pause the debt
  • If you already have a repayment plan, it’s best to check how switching might affect it

The actual act of switching does not affect your credit score. Nevertheless, if you make an application for a credit meter or a tariff, a new supplier may run a check.

Switching Energy on a Prepayment Meter

Being on a prepayment meter doesn’t stop you from switching, although your options can be a bit more limited.

Traditional key or card meters

  • You can still switch suppliers
  • Some providers don’t offer prepayment tariffs, so choice may be narrower
  • Your new supplier will send you a new key or card

Smart prepayment meters

  • These offer more flexibility
  • Many suppliers accept smart prepayment customers
  • In some cases, your meter can be updated remotely, without needing new equipment

What to look out for

When comparing different tariffs, you need to make sure you are checking:

  • Unit rates (cost per kWh)
  • Standing charges
  • Emergency credit levels
  • How and where you can top up

Prepayment customers have traditionally paid a little more, although this is no longer the case because of price caps. It is still worth checking, though, as there are potential savings to be made.

Can You Switch From a Prepayment Meter to a Credit Meter?

Yes, and this may allow you to take advantage of even more competitive offers.

  • If you have a smart meter, your supplier may be able to switch you to credit mode remotely
  • With a traditional meter, you’ll usually need a physical replacement
  • Suppliers may carry out a credit check before approving the change

Why this matters: credit meters are more likely to have a number of tariffs available, which can save you money in the long run.

If You Cannot Switch Right Now — What Are Your Options?

If you are unable to switch now, it’s not the end of the world. There are a number of things you can do.

Talk to your supplier

You can ask for a repayment plan that works for your situation. Even small, regular payments can help bring your balance below £500.

Check for hardship support

Many suppliers offer hardship funds or grants. In some cases, these can reduce or even clear part of your debt.

Look into the Warm Home Discount

If you’re eligible, this provides a one-off payment towards your energy costs, which can help reduce what you owe.

Join the Priority Services Register

This is free and can give you extra support, especially if you’re dealing with financial pressure or other vulnerabilities.

Speak to Citizens Advice

They offer free, independent advice and can help you understand your rights and next steps.

Contact the Energy Ombudsman

If something doesn’t feel right, for example, if you believe you’ve been treated unfairly, they can step in and investigate.

How to Compare Energy Deals if You Are Eligible to Switch

If you’re able to switch, the process is simpler than many people expect.

  1. Check your debt level for each fuel
  2. Confirm your meter type (prepayment, smart prepayment, or credit)
  3. Find your energy usage from a recent bill or top-up history
  4. Enter your details into an energy comparison tool like Simply Switch
  5. Compare tariffs based on total cost, not just headline rates
  6. Choose a deal and switch – your supply won’t be interrupted

Everything is handled behind the scenes, so you won’t be left without energy at any point.

FAQs — Switching Energy in Debt or on a Prepayment Meter

Can my supplier refuse to let me switch if I owe money?

Yes, if the amount owed is £500 or more, including the fuel type.

Will switching energy affect my credit score?

No, the process of switching will not affect your credit score in any way.

Do I have to pay off my debt before switching?

Not if it’s under £500 per fuel. If it’s above that, the Debt Assignment Protocol may help.

Can I get a better deal on a prepayment meter?

Yes. The number of options may be smaller, but a comparison may still help you save money.

What is emergency credit?

It is a small reserve (usually £5 to £10) that ensures your supply remains on if you temporarily run out of credit.

Can I be forced onto a prepayment meter?

Yes, although this is rare, and usually, your bills need to be unpaid, and other options have been explored. If this happens to you, then advice is recommended.

Conclusion — Know Your Rights and Explore Your Options

Being in debt or a prepayment meter customer does not mean that you are unable to get a better deal on your gas and electric.

  • Many households with debt under £500 can still switch
  • Prepayment customers, especially those with smart meters, often have more choice than they realise
  • Even if switching isn’t possible today, there are clear steps to improve your situation

Most importantly, you’re not alone in this, and there are options available.

If you are eligible, then comparing may help you take back a bit of power and get a better deal for you.