AI Guides › Money & Business

Using AI To Audit Your Own Subscriptions

By Nigel Guy · 2 min read

There's an obvious joke here — asking an AI tool to help you work out whether you need so many AI tools — and most people either avoid the exercise for that reason or do it half-heartedly, skimming a bank statement and cancelling whatever they don't recognise by name. Neither approach finds the real waste. The irony isn't a reason to skip the audit; it's the reason the audit works. An AI assistant is unusually good at the one part of this task humans are bad at: reading a long, boring list of transactions without losing patience halfway through.

The mechanism

1. Export your actual transaction history, not your memory of it — a bank or card statement covering the last three months, as a plain export or a screenshot.
2. Have the assistant group and total the charges by merchant. This is the tedious step it's genuinely faster at than you are: matching "OPENAI *CHATGPT" and "OpenAI, LLC" as the same line, spotting a subscription that quietly changed price.
3. Ask it to flag anything that looks duplicated in purpose — two note-taking apps, two AI writing tools — as a starting list for you to review, not a verdict.
4. You decide what each one is actually for, from memory, not from the assistant's guess at your workflow. It can't know that the "duplicate" transcription tool is actually your backup when the other one is down.
5. Cancel in the account itself, not by asking the assistant to do it. It can't cancel a subscription on your behalf, and anything that claims otherwise should be treated with suspicion.

What to skip

Skip asking the assistant to justify keeping a tool based on general reputation ("this is a popular choice") — popularity isn't evidence you personally use it. And skip doing this from memory alone; the entire value of the exercise comes from the transaction list, not from trying to recall your subscriptions off the top of your head.

Guardrails

• The assistant can read and total a list faster than you can, but it has no visibility into which subscriptions you actually open and use — that judgement stays with you.
• Never paste full card numbers or account credentials into a chat window to make this easier; a merchant name and an amount is all the exercise needs.
• Treat any category the assistant flags as "unclear" as a prompt to go check the account directly, not as grounds to leave it alone or cancel it on a guess.
• Re-run this every few months. Subscriptions creep back in quietly, and a clean audit today says nothing about what's been added since.

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