UK Tax and NI Excel spreadsheet needed

[slinxy]

Hi

can some kind person create me a excel shreadsheet to work out my tax and NI on a monthy bases - I tried serveal times to create one but my maths always takes it out by a few pence each month...

Thanks

 

[Fourstar]

Can't you just use something like http://www.listentotaxman.com/ or one of the other hits off this google search?