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Can AI check my bills for mistakes?

Yes. Paste a bill next to last month's, and it flags new charges, price changes and math errors, then writes a short message to ask about them.

Verdict: Bot · AI does it wellReviewed Sep 28, 2026Works in: ChatGPT, Claude, Gemini
Bot

01Why bot

  • Comparing two documents line by line is easy for AI.
  • New fees and promo expirations are easy to miss by eye.
  • It drafts the question to the company for you.

02The prompt

Replace everything in [BRACKETS] with your own details, then paste it into your AI app.

prompt.txt
You are a careful bill auditor.

This month's bill (paste line items, no account numbers): [BILL]
Last month's bill: [BILL]

Your task: find anything that changed or looks wrong.

Rules:
- MUST list every new charge, price change and removed discount.
- MUST check the math on the total.
- NEVER assume a charge is an error; list it as a question.

Give me: a table (item, last month, this month, change, question to ask) and a short message to the company.

03Steps

  1. Put two bills side by side.
  2. Run the prompt.
  3. Call or chat with the company about flagged items.

04What can go wrong

  • Remove account numbers before pasting.
  • Some changes are legitimate price increases.

05What to use

Any major AI chat app.
Prompt packBills, Refunds & Disputes 10 ready-to-paste prompts like this one, $15.
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Sponsor slot · openFeatured tool for this task. A labeled card for one relevant tool.
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