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YES

As of 13 August 2026, AI can check your energy bill for errors.

This still needs a person who signs their name to it.

Can you do it?

5 minutesto a draft.

30 minutesto something you’d act on.

Cost, all in£0

Skill neededchat-fluent

Who has to check ityou

What the alternative costsThe available tool data gives no price for a specialist energy-bill checking service.

If this goes wrong, you may challenge the wrong charge, miss an overcharge or pay an amount that needs correcting later.

What to actually do

  1. Hand it to a person

    The route this page recommends

    A person who owns the outcome does this end to end, worth it when the failure is dear.

  2. Use a tool built for this

    Second choice

  3. Do it yourself

    The distant third

    A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

    How to actually do it

    1. Open the latest energy bill and copy its text into a document, or take a clear image showing the billing period, readings, rates, standing charges, VAT, payments and amount due.
    2. Gather the tariff confirmation, price-change notices, meter readings with their dates, and bank records or statements showing payments to the supplier.
    3. Paste the bill and supporting information into a chatbot with the supplied prompt, keeping each source under its labelled heading.
    4. Compare the chatbot's extracted figures with the original bill and correct any transcription mistakes before relying on its calculations.
    5. Recalculate the consumption, unit charges, standing charges, VAT, payments and balance using the bill and tariff documents, then mark each flagged issue as confirmed, possible or unsupported.
    6. Send the drafted supplier message with copies of the relevant bill pages and meter readings, and ask the supplier to confirm the tariff, readings and account balance in writing.
    7. Keep the supplier's reply and compare its corrected figures with the bill before changing your direct debit or disputing the amount.

    Prompt

    Check the UK energy bill and supporting information pasted below for possible errors. Do not assume missing facts and do not invent rates, readings, dates or payments. First extract the billing period, meter readings, units, unit rates, standing charges, discounts, VAT, payments, balance and amount due. Then reproduce the supplier's arithmetic line by line, identify any mismatch, and compare the charges with the tariff terms and meter readings I provide. Separate confirmed arithmetic errors from possible issues that only the supplier can confirm. State exactly what evidence is missing, give the checks I can do myself, and draft a concise message to the supplier asking them to investigate. Do not tell me that a charge is wrong unless the supplied evidence proves it.

Bill:
[PASTE BILL OR TRANSCRIBED BILL]

Tariff terms or confirmation:
[PASTE TARIFF DETAILS]

Meter readings and dates:
[PASTE READINGS]

Payments and previous balance:
[PASTE PAYMENT RECORDS]

Anything the supplier has already told me:
[PASTE REPLIES OR WRITE NONE]

    Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

What it gets wrong

  • AI cannot see the supplier's internal meter, tariff or account records, so it cannot confirm whether the supplier applied the correct account data.
  • AI cannot know whether a meter reading was taken correctly or whether a backdated adjustment reflects a genuine supplier correction.
  • AI can misread a poor scan or confuse a current reading with a previous reading, so every extracted figure needs comparison with the original bill.
  • AI cannot recover money or make the supplier correct the account; you must raise the dispute and keep the evidence.

Even on a YES, the friction has a name: verification cost, real time truth and stakes of error.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

AxisScore (0–2)
Output2
Inputs2
Verification1
Liability2
Effort delta2
Total9 / 10

The methodology and its thresholds are published in full.

FAQ

Can ChatGPT check my energy bill?
Yes. It can extract the figures, redo the arithmetic and flag inconsistencies in readings, rates, payments and the balance. You still need to compare its figures with the original bill and ask the supplier to confirm account-level issues.
How do I know if my energy bill is wrong?
Compare the opening and closing meter readings, consumption, unit rates, standing charges, VAT, payments and previous balance with your tariff documents and records. AI can organise and calculate those comparisons, but the supplier must confirm errors involving its internal account data.
Can AI read a photo of my energy bill?
Yes, if the image is clear enough for it to distinguish the figures, labels and dates. Check every extracted number against the photograph because a blurred scan, decimal point or meter-reading digit can change the result.
What should I do if my energy supplier has overcharged me?
Keep the bill, meter readings, tariff evidence and payment records, then ask the supplier to explain and correct the specific discrepancy in writing. If the issue remains unresolved, use the supplier's formal complaints process and follow the applicable independent dispute route.

Nearby answers

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Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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