EnergyPlus · May 2026

Can I switch energy supplier if I have a prepayment meter? (May 2026)

Yes — most UK households on a prepayment (PAYG) meter can switch energy supplier. Since the prepayment cap was aligned just below the default tariff cap in April 2024, PAYG households have more competitive tariffs and a clearer right to switch. This page sets out the May 2026 rules: who can switch, what happens with debt, how smart PAYG fits in, and how long it takes.

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Editorial information, not financial advice. Prices and policy can change — always confirm against the supplier and Ofgem.

Switching with a prepayment meter — the May 2026 essentials

Most prepay households can switch supplier in 5 working days under the Faster Switching guarantee. If you owe up to £500 per fuel to your current supplier, the Debt Assignment Protocol lets you transfer the debt to the new supplier. Smart-PAYG (SMETS2 in prepay mode) opens up the best tariffs and app-based top-ups. Switching is free and you don't lose supply at any point.

Quick checklist (May 2026):

  • PAYG switches complete in 5 working days under Faster Switching.
  • Up to £500 per fuel of debt is transferable under the Debt Assignment Protocol.
  • Smart PAYG (SMETS2) unlocks the best PAYG tariffs in 2026.
  • Switching is free — no fee from either supplier.
Last updated
May 2026
Reviewed by
Energy Specialist
Audience
UK households & small businesses

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Switching energy supplier with a prepayment meter (May 2026)

A clear, current overview to help you choose with confidence.

Eligibility — who can switch

If your debt to your current supplier is £500 or less per fuel and the account is in your name, you can switch. Higher debt requires talking to your current supplier first — they may agree to a repayment plan or write down the debt.

Smart PAYG opens the door

A SMETS2 meter in prepayment mode lets you switch to smart-PAYG tariffs from Octopus, British Gas, EDF, OVO and ScottishPower, with app top-ups, real-time balance and emergency credit.

Switch from PAYG to direct debit

If you can budget a fixed monthly direct debit and pass a soft credit check, your supplier will change the meter mode (no physical swap on smart meters) and you'll unlock credit-meter fixes priced ~6% below the cap.

Protections during the switch

You don't lose supply during the switch. Friendly-hours protection (no disconnection at night, on Sundays or bank holidays) and emergency credit continue throughout, and the Priority Services Register protections carry across to the new supplier.

Compare like-for-like

How prepayment switching options compare in May 2026.

What to compare Typical range (May 2026) Notes
Stay on PAYG, same supplier Default prepay tariff May 2026 prepayment cap applies.
Switch PAYG supplier 5 working days Faster Switching; PAYG cap still applies.
Switch to smart PAYG Free SMETS2 upgrade Better tariffs and app top-ups.
Switch from PAYG to direct debit Credit check needed Unlocks credit-meter fixes ~2–6% below default cap.
Switch with debt (≤£500/fuel) Debt Assignment Protocol Debt transferred to new supplier.

How to switch energy supplier on a prepayment meter (May 2026)

  1. 1. Check your debt position

    If under £500/fuel, the Debt Assignment Protocol covers you. Above that, talk to your current supplier first.

  2. 2. Ask about smart PAYG

    If you still have a legacy key/card meter, request a SMETS2 prepay upgrade — it's free and unlocks the best PAYG tariffs.

  3. 3. Get whole-of-market PAYG quotes

    Use the form on this page to surface PAYG-compatible tariffs in your postcode.

  4. 4. Pick a tariff and apply

    The new supplier handles the switch end-to-end. You don't lose supply at any point.

  5. 5. Submit a closing top-up balance/read

    Helps reconcile the final bill with your current supplier.

  6. 6. Re-register with PSR if eligible

    Each supplier maintains its own Priority Services Register — re-register with the new supplier.

Common pitfalls to avoid

The most frequent issues we see when households and businesses act on what looks like a good deal.

  • Switching while in dispute over a bill — resolve the dispute first to avoid carrying it across.
  • Forgetting to take a closing meter read on switch day — protects against incorrect final bills.
  • Not telling the new supplier about Priority Services Register status — you have to re-register with them.
  • Picking a tariff without checking unit rate + standing charge — the prepay cap is a ceiling, not a price.

Frequently asked questions

Can I switch energy supplier with a prepayment meter?

Yes. Most UK prepayment customers can switch supplier under the Faster Switching guarantee, completing in 5 working days. If you owe £500 or less per fuel to your current supplier, the Debt Assignment Protocol lets you carry the debt across to the new supplier.

Does switching cost anything on prepay?

No — switching is free and neither the current nor the new supplier charges a fee. Your top-up balance is preserved and continues to work during the switch.

What is the Debt Assignment Protocol?

An Ofgem-backed framework that lets PAYG customers switch supplier even if they owe money. The threshold is £500 per fuel; above that, you'll usually need to clear or agree a repayment plan with your current supplier first.

How long does PAYG switching take in May 2026?

Five working days under the Faster Switching guarantee. The new supplier handles the paperwork, your meter keeps working with your existing top-up methods until the change-over, and you don't lose supply at any point.

Can I switch from prepay to direct debit?

Yes — your supplier can change a SMETS2 meter from prepay mode to credit mode remotely (no engineer visit needed). You'll need to pass a soft credit check. Once on credit metering you can pick fixed tariffs typically 2–6% below the cap.

What tariffs can prepay customers pick?

All prepayment-eligible tariffs, including smart-PAYG products from major suppliers and an increasing number of PAYG fixes. The prepayment cap is the maximum rate, not the price — cheaper PAYG products exist.

Do I keep my emergency credit when I switch?

Yes — standard Ofgem protections (emergency credit, friendly hours, no disconnection at night/Sunday/bank holiday) continue throughout the switch and apply on the new supplier from day one.

Will my Priority Services Register status transfer?

Not automatically. Each supplier maintains its own PSR. When you switch, register with the new supplier so they know about any vulnerabilities or accessibility needs.

Trust, methodology and sources

Page governance

Reviewed by
Energy Specialist
Last updated
May 2026

How we keep this page current

We refresh this page each month against the latest Ofgem cap, supplier tariff changes and current scheme guidance. Worked numbers are illustrative; quotes you receive via the comparison form are personalised to your meter and postcode.

Editorial independence: our priority is clarity and like-for-like comparison. Where commercial relationships exist, options are still presented on suitability and the information available at the time.

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If you spot anything that looks out of date (a rule change, a new scheme), please contact EnergyPlus so we can review and update this page.

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Updated on 19 May 2026