Can I switch energy supplier if I’m on prepayment in the UK?
Yes — almost every UK household on a prepayment (pay-as-you-go) meter can switch supplier or tariff, even with some debt on the meter. With the July 2026 price cap holding electricity at 26.11p/kWh and gas at 7.33p/kWh, a well-chosen prepay deal can still beat the cap. Compare whole-of-market options with EnergyPlus.
- Switch on prepayment — keep your meter, change supplier or tariff
- Owe money? You can switch with up to £500 of debt per fuel (Debt Assignment Protocol)
- Beat the July 2026 cap (26.11p/kWh elec) with a cheaper prepay or fixed deal
Home energy only. Whole-of-market comparison where available. Switching rules vary by supplier, meter type and any outstanding balance. Figures reflect the Ofgem July–September 2026 (Q3) cap.
Compare prepayment energy tariffs (whole-of-market)
If you pay as you go using a prepayment meter (key, card or smart prepay), you have the same legal right to switch supplier as a credit-meter customer. What can affect your switch is any outstanding balance, your meter type, and the new supplier’s acceptance rules — not a blanket ban on prepay switching.
EnergyPlus helps UK households compare across suppliers and gives clear next steps for your situation. Request your comparison and we’ll help you understand:
- Whether you can switch on prepayment right now, and to which suppliers
- Whether you can move to a standard credit-meter tariff if eligible
- What happens to your debt or credit — including the £500-per-fuel Debt Assignment Protocol
- How smart prepay switching differs from key/card meters
Quick answer (July 2026): Yes — in almost all cases you can switch supplier on prepayment in the UK. You can even switch while owing up to £500 per fuel using the Debt Assignment Protocol. The main reasons a switch is delayed or refused are debt above £500 per fuel, rare meter-compatibility issues, or a tenancy/landlord restriction on changing the meter (not on switching supplier). The current price benchmark is the Ofgem July 2026 cap: 26.11p/kWh electricity and 7.33p/kWh gas.
Get your prepayment switch options
Complete the form and we’ll match you with suitable home-energy tariffs for your meter type and payment preference.
What prepayment costs under the July 2026 price cap
Ofgem confirmed the latest energy price cap, and it took effect. The cap sets the maximum average unit rates and standing charges a supplier can charge on a standard variable tariff — including for most prepayment customers, whose capped rates are now broadly aligned with direct-debit rates rather than carrying the old prepay premium. Use these figures as your benchmark: a good prepay or fixed deal should match or beat them.
| Fuel (GB average) | Unit rate (July 2026 cap) | Standing charge |
|---|---|---|
| Electricity | 26.11p per kWh | 57.19p per day |
| Gas | 7.33p per kWh | 29.04p per day |
For a typical medium household (around 2,500 kWh of electricity and 9,500 kWh of gas (Ofgem updated values) a year), these unit rates plus standing charges are what your prepayment spend is measured against. The cap changes every quarter, so the October–December 2026 level is not yet confirmed — another reason to compare now and lock in value where a fixed prepay or credit deal beats the cap.
How to beat the cap on prepay: compare fixed prepayment tariffs and smart-prepay deals that price below 26.11p/kWh electricity or 7.33p/kWh gas, and watch the standing charges — a lower unit rate with a higher daily charge isn’t always cheaper for low users. Compare deals or read more on the price cap.
Why switching on prepayment can be worth it in 2026
Prepayment customers once faced fewer choices and a higher “prepay premium”. That gap has narrowed, and with smart prepayment meters now widespread, more suppliers offer competitive PAYG tariffs. Switching supplier or tariff can help you manage costs and avoid drifting on an uncompetitive plan.
Potentially lower unit rates
Some suppliers price prepay tariffs at or below the July 2026 cap (26.11p/kWh elec), especially for smart prepay meters. Comparing helps you spot better-value options.
Keep control of spend
Pay-as-you-go helps avoid bill shocks. Switching doesn’t change that — you can stay on prepay while still moving to a cheaper deal.
Better customer experience
App top-ups, emergency credit, friendly-credit hours and clearer usage insights are common with smart prepayment suppliers.
Move to credit if eligible
If your circumstances allow, you may switch meter mode and unlock a wider range of tariffs, including the cheapest fixed deals.
Switch even with debt
Owe up to £500 per fuel? The Debt Assignment Protocol lets your new supplier take on the debt so you can still move and keep repaying via top-ups.
No need to stay put
Being on prepayment does not lock you to your current supplier. You can almost always shop around for a fairer deal.
Tip: If you have a smart prepayment meter, switching is usually smoother — the meter can often be updated remotely with no engineer visit, and top-ups are managed through an app or online account.
Switching with prepayment debt: the £500 Debt Assignment Protocol
Owing money on your meter does not automatically stop you switching. Under the industry-wide Debt Assignment Protocol (DAP), a prepayment customer can switch supplier while owing up to £500 per fuel (so up to £500 on electricity and up to £500 on gas). Your new supplier takes the debt on, and you carry on repaying it through a small percentage of each top-up — just as you did before.
When the DAP lets you switch
- Your debt is £500 or less per fuel.
- The debt has been on the meter long enough to be confirmed (it isn’t a brand-new charge still in dispute).
- A new supplier is willing to accept the transfer — most do, though policies vary.
- You agree to keep repaying through your top-ups after the switch.
If you owe more than £500 per fuel
- The switch can be blocked until the balance is brought under the limit.
- Ask your current supplier about an affordable repayment plan to reduce the debt first.
- If you’re struggling, ask about hardship support, the Fuel Direct scheme, or a grant — suppliers must offer help to customers in difficulty.
- Once you’re back within £500 per fuel, the DAP route reopens.
Don’t know your balance? Check your meter’s debt screen, a recent top-up receipt, or ask your current supplier. Then use the comparison form and tell us your rough debt band so we suggest suppliers that accept DAP transfers.
How switching works for prepayment meters
Switching supplier moves your gas and/or electricity supply to a new provider. In most cases your meter stays in place. What can change is how you top up (app vs key/card), your tariff rates, and the supplier you deal with. Under current rules, a standard switch should complete in around five working days once it’s started, with a 14-day cooling-off period.
Key/card prepayment meters
- You may receive a new key/card from the new supplier, or be told your existing one still works.
- You may be asked for a meter serial number or a photo for verification.
- Your top-up network can change (PayPoint/Payzone, Post Office, or online where available).
Smart prepayment meters
- Switches often complete with no engineer visit — the meter is updated remotely.
- Top-ups are usually available via app, online, phone and retail outlets.
- The meter may briefly run in “safe mode” during parts of the switch, keeping your supply on.
What you’ll typically need
| Item | Why it matters | Where to find it |
|---|---|---|
| Postcode | Checks tariff availability and your regional network. | Your address. |
| Fuel type | Determines whether you’re switching gas, electricity or both. | Your meter setup / current supplier account. |
| Meter type | Affects eligible tariffs and the switching process. | Meter label, in-home display or your supplier account. |
| MPAN / MPRN | Speeds up matching your meters to the right address and tariff (optional but helpful). | A recent statement or your online account. |
| Any debt/arrears | Debt up to £500 per fuel can transfer under the DAP; more may delay the switch. | Your meter display, receipts or supplier statements. |
Important: If you have emergency credit active, some suppliers may ask you to top up or clear that balance before the switch finalises.
Can anything stop me switching on prepayment?
Usually you can switch, but a few common scenarios can delay or prevent it. Knowing these upfront helps you avoid wasted time and choose the right route.
1) Outstanding balance over £500 per fuel
Debt up to £500 per fuel can move with you under the Debt Assignment Protocol. Above that, a switch can be blocked until you reduce the balance. You may still proceed if:
- You agree a repayment plan to get under £500 per fuel
- Your new supplier accepts a DAP transfer
- You clear or reduce the arrears first
2) Meter compatibility
Not every supplier supports every prepayment setup. Some older key/card meters have limited tariff availability. Smart prepay is usually more flexible and gives wider choice.
3) You’re in a fixed term (rare for prepay)
Most prepayment tariffs are variable, but if you’re on a fixed deal an early exit fee may apply. We’ll help you weigh that before you proceed.
4) Tenancy/landlord considerations
As a tenant you can generally switch supplier if you pay the bills. A landlord might restrict a meter change (prepay to credit) but not usually a supplier switch. Check your tenancy agreement if unsure.
Being blocked from switching? It’s most often debt over £500 per fuel or an account status flag. Use the comparison form and tell us your meter type and debt band so we can suggest realistic options.
Step-by-step: switching supplier on prepayment
Here’s what the process typically looks like for UK households in 2026. Exact steps vary by supplier and meter type.
- Confirm your meter type (key/card or smart prepay). Not sure? We can help you identify it.
- Check any outstanding balance and whether it’s under £500 per fuel for a DAP transfer. Note any active emergency credit.
- Compare whole-of-market options against the July 2026 cap (26.11p/kWh elec, 7.33p/kWh gas) using EnergyPlus, and pick a suitable tariff.
- Submit your switch request and keep topping up as normal until it completes.
- Take a meter reading where possible (some prepay meters show usage/credit rather than a reading). Your supplier confirms what’s needed.
- Receive new top-up instructions (new key/card or smart-app details). Keep them safe.
- Switch completes — usually within about five working days — and your new tariff applies. Follow any agreed debt-repayment method.
Typical timelines (what to expect)
| Stage | Prepay key/card | Smart prepay |
|---|---|---|
| Switch request submitted | Same day | Same day |
| Supplier checks / acceptance (incl. any DAP) | A few days | A few days |
| Top-up method issued | New key/card or instructions | App/account details |
| Switch completion | Around 5 working days* | Around 5 working days* |
*Timings can vary due to meter types, data matching, debt checks and supplier processes. There’s a 14-day cooling-off period on most switches. We’ll guide you based on your details.
Common mistakes to avoid when switching prepayment energy
Not checking debt first
If you owe money, knowing whether it’s under £500 per fuel tells you instantly whether a DAP transfer is on the table.
Running too low during the switch
Keep enough credit on the meter while the switch processes. Top up as usual until you’re told the new method is live.
Chasing the lowest unit rate only
A headline rate below 26.11p/kWh isn’t the whole story — check the standing charge too, especially if you’re a low user.
Not sure which applies to you? Start with the comparison form and choose “Not sure” for meter type or debt. We’ll still point you in the right direction.
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FAQs: switching energy supplier on prepayment (UK)
Yes, in many cases. Under the Debt Assignment Protocol you can switch while owing up to £500 per fuel (so up to £500 on gas and up to £500 on electricity). Your new supplier takes on the debt and you keep repaying it through your top-ups. If you owe more than £500 per fuel, you’ll usually need to reduce the balance first.
Not sure of your balance? Select the closest option in the comparison form and we’ll advise what’s realistic.
No — switching supplier never disconnects your energy. Keep topping up as normal until your new supplier confirms your new top-up method is active. The physical supply continues throughout.
The Ofgem cap sets average electricity at 26.11p/kWh (57.19p/day standing charge) and gas at 7.33p/kWh (29.04p/day). Prepayment capped rates are now broadly aligned with direct debit. A good fixed prepay or smart-prepay deal aims to match or beat these unit rates — comparing is how you find one.
Often, yes. Suppliers may run eligibility checks (such as payment history or a credit check) and may want any debt cleared or managed first. Moving to a credit meter can unlock the cheapest fixed deals. Tenants may need landlord approval to change the meter mode or the meter itself.
A standard switch usually completes in around five working days once it’s started, with a 14-day cooling-off period. Debt checks, a DAP transfer or meter data matching can add a little time. You keep your supply throughout.
No. You can switch with a traditional key/card meter too. Smart prepay simply tends to offer wider tariff choice, remote switching with no engineer visit, and easier app top-ups.
If you’re responsible for paying the energy bills, you can usually switch supplier. If the landlord pays, the account holder decides. Changing the meter type (prepay to credit) may need landlord consent, but switching supplier generally does not.
That’s common with prepayment. Submit your postcode and meter type in the form and share anything you do know (for example, top-up receipt branding or your MPAN/MPRN if you have it). We’ll help you progress from there.
Looking for the fastest route? Use the Compare prepayment deals form and we’ll focus only on tariffs compatible with your meter and circumstances.
Trusted by UK households
People use EnergyPlus to make sense of energy options — especially when switching feels complicated, like with prepayment meters.
“I didn’t realise I could switch while staying on prepay. The options were explained clearly and I moved to a better tariff.”
Homeowner, West Midlands
“We’re renting and thought we were stuck. EnergyPlus helped us understand what we could change and what we couldn’t.”
Tenant, Greater Manchester
“I had a small debt on the meter and still switched under the £500 rule. Straightforward next steps, no sales fluff.”
Household customer, Kent
Whole-of-market approach: we compare across a broad range of UK suppliers where available, focusing on suitability for your meter type and preferences.
Clear, current guidance: if debt, tenancy or meter compatibility affects your switch, we flag it early. Last updated July 2026, benchmarked against the Ofgem July 2026 (Q3) price cap.
Ready to switch your prepayment energy supplier?
Complete the comparison form to see prepayment-friendly options — including deals that beat the July 2026 cap — and understand any restrictions before you commit.
It only takes a couple of minutes. Home energy only.
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