How does a prepayment meter work and how do I manage one?

Prepayment meters are not simply pay-as-you-go energy. Three mechanisms sit underneath — the standing charge, emergency credit, and the debt recovery rate — and none of them is obvious from the display. Understanding all three is what separates a manageable meter from one that quietly consumes every top-up.

Safety

Step by step

1. Find out your standing charge.It accrues daily whether or not the property is occupied. This is why a meter left alone for two weeks is in debt when you return, and it surprises almost everyone.
2. Learn how to check the meter's balance and debt separately.The display shows both, usually under different buttons. Credit is what you have; debt is what is being deducted from future top-ups.
3. Find out your debt recovery rate.If there is a debt on the meter, a proportion of every top-up goes to it before any energy. Ask the supplier what rate is set and what proportion of each top-up reaches your supply.
4. Ask for the recovery rate to be reduced if you cannot manage.Suppliers are expected to set it at an affordable level. If most of your top-up is disappearing into debt, say so and ask for it to be reassessed against your circumstances.
5. Understand emergency credit.It is a short-term advance, not a gift, and the amount is repaid from the next top-up along with any accrued standing charge. Using it repeatedly builds a debt that never clears.
6. Top up before you run low, not when the meter warns you.Topping up in larger amounts less often reduces the number of near-misses, and some payment methods take time to reach the meter.
7. Keep credit on the meter over cold snaps and holidays.Leaving a property with a low balance is how people return to no heating and a debt balance built from standing charges alone.
8. Ask whether a credit meter would be better.You can ask to move to a credit meter. A supplier may ask for a credit check or a deposit, but the request costs nothing and prepayment is not always the cheaper option.
9. Register on the Priority Services Register.It is free, and it matters more on a prepayment meter because self-disconnection risk is higher.
10. Get free advice if you are self-disconnecting.Going without heat or power because you cannot top up is treated seriously. Citizens Advice and your supplier both have routes, including additional support credit in some circumstances.

Tips

• Keep the top-up key or card somewhere fixed. Replacing a lost one takes days, during which you cannot add credit.
• Note the exact top-up amount and the balance before and after, once. It tells you what proportion is going to debt and standing charge without having to ask anyone.
• If the meter is a smart meter in prepayment mode, top-ups usually reach it in minutes, but a poor signal can delay them. Do not leave it to the last hour.

Common mistakes

• Treating emergency credit as spare credit — It is borrowed and it is repaid with the standing charge that accrued while you used it, so a household that lives on it never gets ahead.
• Assuming an empty house costs nothing — The standing charge accrues every day regardless of usage, so an unoccupied property still builds a balance to clear.

If it doesn't work

Questions people ask