I understand that in the UK national insurance is a deduction made to your salary. I have seen this question/answer, that lists 2 very good websites that breakdown your take home pay for UK residents.
However, TAX has some clear guidlines, i.e. £10K tax free, 20% on earnings between £10K and £41K, and so on. Is there some guidelines like that for National Insurance?
To quote from the HMRC website:
If you're employed you pay Class 1 National Insurance contributions. The rates are:
if you earn more than £153 a week and up to £805 a week, you pay 12% of the amount you earn between £153 and £805
if you earn more than £805 a week, you also pay 2% of all your earnings over £805
You pay a lower rate if you're a member of your employer's contracted-out pension scheme.
If you're self-employed then it's much more complicated.
