The short version
A Fuse Energy credit balance refund follows the same Ofgem rulebook as every other UK supplier. Fuse has six weeks from the switch or account closure date to send a final bill, then 10 working days from that bill to return any confirmed credit. The energy final bill refund 10 working days rule is the same for Octopus Energy, OVO Energy and every other licensed supplier - no separate deadline applies just because Fuse is a newer, app-only brand.
The Fuse Energy credit balance refund 2026 rules are unchanged from previous years, since Ofgem has not revised its guaranteed standards. Where suppliers differ is what happens either side of that legal minimum: Fuse runs the process through its app and 24/7 live chat, Octopus targets a tighter internal two-week refund, and OVO sticks to the standard 10 working days but often takes the full six weeks to issue the final statement.
How SwitchInsights tracked this
SwitchInsights' analysis weighted the final-bill stage and the refund stage separately, since a supplier can beat the legal minimum on one and not the other. SwitchInsights research combined Ofgem's guaranteed standards (as of July 2026) with the published refund processes at Fuse, Octopus and OVO, then cross-checked how each played out in real customer reports on Trustpilot, MoneySavingExpert and Resolver. We will refresh this guide whenever Ofgem revises the guaranteed standards or a supplier changes its published process.
What the Ofgem credit balance refund rules require
The Ofgem credit balance refund rules set two clocks whether you switch, move home, or close an account in credit. The first covers the final bill: your outgoing supplier has up to six weeks to issue it, using confirmed meter readings. The second starts once that bill lands: the supplier then has 10 working days to refund any confirmed credit, usually to the bank account the direct debit came from.
Miss the 10-working-day window and the supplier owes automatic compensation, typically £30, without you claiming. That sits alongside the Energy Ombudsman route, which only opens if a supplier fails to resolve a dispute within eight weeks.
| Stage | Ofgem deadline | What happens if missed |
|---|---|---|
| Final bill issued | Within 6 weeks of switch or closure | No automatic compensation, but you can raise a formal complaint |
| Credit balance refunded | Within 10 working days of the final bill | Automatic compensation, typically £30 |
| Unresolved complaint escalation | 8 weeks with no resolution, or a deadlock letter | You can refer the case to the Energy Ombudsman |
How Fuse Energy's refund process works
Fuse launched in July 2023 and now serves over 200,000 UK households as of May 2026, positioning itself as an app-first supplier instead of a call-centre operation. No phone line exists for billing queries. Instead, Fuse routes final readings, closing statements and credit refunds through the app and a 24/7 Fuse Energy live chat staffed by humans.
That structure cuts both ways. Customer reports describe Fuse Energy live chat resolving final-reading disputes with a previous supplier quickly, which is often the real bottleneck in a delayed refund. Customers less comfortable managing an account through an app alone have found the lack of a phone number frustrating when a case needs escalating. Either way, the Fuse Energy credit balance refund UK households receive still runs on the same Ofgem clock.
A Fuse Energy exit fee lowers the refund amount, not the refund date. Fuse charges an exit fee, reported at around £100, on some dual-fuel fixed tariffs if you leave before the term ends. It is deducted from your final bill before any remaining credit is calculated, so a smaller-than-expected refund is often an exit fee, not an error. Not every tariff carries one - check your terms in the app.
Real customer experiences: what people report
Fuse Energy Trustpilot reviews sit around 4.7 to 4.8 out of 5 from several thousand entries as of mid-2026, which is high for a UK energy supplier. Refund-related reviews fall into two groups: straightforward cases where the final reading was agreed and the credit landed inside the 10-working-day window, and slower cases where the previous supplier had not confirmed a closing reading, which held up Fuse regardless of how fast Fuse itself moved.
MoneySavingExpert threads describe a similar split, with some customers reporting a slow initial response that moved quickly once escalated. Complaints logged through Resolver tend to resolve faster once a formal reference exists, which points to a written complaint trail as the more reliable route.
Fuse Energy vs Octopus Energy vs OVO Energy on refund speed
None of the three can legally refund slower than Ofgem's 10-working-day rule. An Octopus Energy credit balance refund and an OVO Energy credit balance refund sit on the same legal floor as Fuse Energy. The differences lie in how quickly the final bill arrives.
| Supplier | Final bill process | Refund target | Contact route for delays |
|---|---|---|---|
| Fuse Energy | App-based, final reading confirmed via chat | Standard 10 working days, no published faster SLA | 24/7 live chat only, no phone line |
| Octopus Energy | Says most customers get a final bill within 4 weeks | Around 2 weeks, with same-day refunds piloted for some accounts | Phone, chat, and in-app refund requests |
| OVO Energy | Final statement can take close to the full 6 weeks | 10 working days from the final statement, refunded automatically | Phone, online help centre, and community forum |
Octopus has the tightest published target and the widest contact options. OVO is reliable on the 10-working-day refund step but slower on the final statement. Fuse sits in between: no faster commitment than the legal minimum, but a live chat channel that reports suggest responds quickly once a case is formally raised. SwitchInsights rates all three as legally compliant, with Octopus the fastest in practice.
Why energy credit refunds get delayed
- Disputed final meter readings stop the final bill from being issued, which means the 10-working-day clock never starts.
- Outstanding exit fees or deposits get deducted before your credit balance is calculated, shrinking or eliminating an expected refund.
- Bank or ID verification checks can hold up a larger refund if the account on file has recently changed.
- An early direct debit cancellation can delay the final bill itself, which is why Ofgem and Citizens Advice recommend keeping it active until the bill lands.
How to chase a delayed Fuse Energy refund
Here is the Fuse Energy credit balance refund step by step process to follow if the money has not landed.
The 10-working-day clock starts from the final bill, not the switch date.
Ask for a written complaint reference. That starts Ofgem's eight-week clock if you later need to escalate.
If your previous supplier has not confirmed the closing reading, the delay usually sits with them. Use the SwitchPilot tariff tracker to confirm the rate you switched on while the case is open.
Resolver creates a timestamped complaint trail, which tends to move faster than an informal chat thread.
If Fuse has not resolved the case in eight weeks, or issues a deadlock letter sooner, take it to the Energy Ombudsman for a binding decision.
SwitchInsights' take
A Fuse Energy credit balance refund runs on the same Ofgem clock as any other supplier: six weeks for the final bill, then 10 working days for the money. Fuse has not published a faster internal target the way Octopus has, so treat 10 working days after your final bill as the realistic ceiling. If that date passes, use live chat to get a written reference - that is the step that unlocks the Ombudsman route later.
While you wait, compare rates on the SwitchPilot tariff tracker instead of assuming your next tariff has to come from the same supplier.
Frequently asked questions
How long does Fuse Energy take to refund a credit balance?
Fuse follows Ofgem's standard: a final bill within six weeks of switching or closure, then a refund of any confirmed credit within 10 working days of that bill. Reports suggest Fuse generally meets this once the final reading is agreed.
What does the law require for energy credit balance refunds?
Ofgem's guaranteed standards require a final bill within six weeks of account closure, then a refund of any confirmed credit within 10 working days. Missing the refund deadline triggers automatic compensation, typically £30.
Is Fuse Energy slower than Octopus Energy at refunding credit?
Octopus publicises a tighter internal target of around two weeks and has piloted same-day refunds for some closed accounts. Fuse has not published a faster commitment, so it defaults to the standard 10 working days.
Is Fuse Energy slower than OVO Energy at refunding credit?
OVO also refunds within 10 working days of the final statement, but that statement can take close to the full six weeks. Fuse's app-based process can move faster at the reading-confirmation stage, though results vary.
Why is my Fuse Energy refund taking longer than 10 working days?
The most common cause is a disputed or missing final meter reading, often from the previous supplier rather than Fuse. Bank verification checks and an unresolved exit fee or deposit balance can also hold things up.
How do I chase a delayed refund from Fuse Energy?
Confirm the final bill date in the app, then raise the delay through Fuse's 24/7 live chat and ask for a written complaint reference. If it is not resolved in eight weeks, escalate through Resolver or the Energy Ombudsman.
Does Fuse Energy charge an exit fee that reduces my refund?
Some Fuse dual-fuel tariffs carry an exit fee, reported at around £100, which is deducted from the final bill before the credit balance is worked out. Not every tariff carries this fee, so check your terms in the app.