Check a billNot Billed for Energy in Over a Year?
If you have not received an accurate bill for a long time, do not just argue that the amount feels unfair. Identify the billing gap, the supply period and which charges may be older than 12 months.
Use together
The short answer
A long gap without accurate bills is a red flag for back-billing checks. Build a timeline of statements, estimated readings, actual readings and supplier messages before deciding what amount to dispute.
Timeline to build
Last accurate bill
Find the last bill based on reliable readings.
Missing period
Mark months with no bill or only estimates.
Supplier contact
Save messages where you gave readings or asked for a bill.
New large bill
Separate current usage from older usage.
Ask for a period breakdown
Please identify any charges relating to energy used more than 12 months before the bill date.
Please explain whether you consider those older charges recoverable under back-billing rules and why.
Frequently asked questions
What if I used the energy?
Using energy does not automatically decide whether older charges can be recovered. The back-billing rules and facts matter.
What if I never sent readings?
That can affect the analysis. Gather evidence of whether you had access to readings, whether the supplier asked and whether you cooperated.
Can I ask for a payment plan?
Yes. Even if part of the bill is valid, ask for affordable payment support in writing.
Official sources used for this page
BillDecoded translates official process and billing information into practical checks. It is not affiliated with the Ombudsman, Ofgem, Citizens Advice, Which? or any supplier.