How to workout PAYE?
Answers:
http://www.hmrc.gov.uk/employers/employe. in this you will find a CD Rom with Tax and NI caluclators. And phone the helpline if need be http://www.hmrc.gov.uk/contactus/helplin.
Good Luck
Contact the helpline on 0845 300 3939
Totally impossible for mere mortals
Your Q is a bit vague,
General rule is that tax is 20% of your Gross income, but it depends on your circumstances.
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