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Thinking of building an app that checks your payslip for mistakes - would this be useful?

58 replies

k282001 · 07/12/2025 18:58

A lot of people I know (including me) have had payslips that were wrong without realising – overtime rate slightly off, wrong tax code, missing hours, holiday pay paid at basic rate instead of average, etc.

I was thinking of making a simple app where you upload your payslip (PDF or photo) and it checks for:
– wrong overtime rate
– incorrect tax code
– NI issues
– pension % wrong
– missing hours
– holiday pay miscalculated

Basically a quick “is this payslip right?” checker that flags possible mistakes.

If this existed, would anyone actually use it?

And would people be willing to pay a small subscription for monthly checks, or would this only be useful as a free tool?

Honest thoughts appreciated – trying to see if it’s worth building or if people would think “nah, I can read it myself”.

OP posts:
NancyMitfordsLeftGlove · 10/12/2025 19:28

Bobiverse · 07/12/2025 22:34

I tried three different ones. You can do it yourself too.

Autistic people can write in a way that makes people think chatGPT has been used, and mumsnet is full of people like you who accuse lots of posters of using it when they haven’t. Obviously OP might not be autistic but I always check text before accusing anyone, just in case.

Oh come on. This is 1000% written by ChatGPT. Anyone who uses it a lot can spot it immediately. How do you think this app will work anyway? It will be powered by an existing AI model. This is someone thinking they can use AI to make money. I doubt it.

Wintersgirl · 10/12/2025 19:29

If huge companies like M&S get hacked, then something like this from small start up would be like taking candy from a baby for the hackers, way too much sensitive information, I'm sure YouGov offer something like this for free anyway

NancyMitfordsLeftGlove · 10/12/2025 19:29

Bobiverse · 07/12/2025 20:57

ChatGPT detector says that is 0% AI and is 100% human written.

ChatGPT detector is talking bollocks 😆

Didshejustsaythatoutloud · 10/12/2025 19:32

That sounds like a fab idea. Maybe you could set up an app to help decipher an NHS payslip.
I would subscribe £3 pm.

Wintersgirl · 10/12/2025 19:32

Firefumes · 07/12/2025 22:39

Why does someone always have to mention autism? On every unrelated thread?

I know every. single. time

messybutfun · 10/12/2025 21:54

There must be a fairly large percentage of employees like me not being paid hourly, get any overtime nor holiday pay. My payslip is fairly basic and not much that can go wrong so I have no need for an app to check it.

dad11122 · 13/12/2025 15:36

If nothing leaves your phone then how does the app understand what it’s looking at when you scan the payslip? Surely all payslips are a bit different in terms of layout, etc?

UxmalFan · 14/12/2025 09:39

There's a very serious problem if your employer's payroll system can't work out payment owed by multiplying hourly rate by hours worked.
Only the employee knows the number of hours actually worked.
I wouldn't bother and certainly would not pay for it.

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