*Note that there are options to transfer, share, assign married couples allowance for tax planning purposes and that the date of marriage (before or after 5 December 2005) has an impact.
**National Insurance is not payable by those under 16, or over the state retirement age. The details are complex, but most people who do pay NI will fall into one of the categories listed, and the purpose of this is to at least give a ballpark idea of the total tax and NI liability that you face. If you wish to find out if you are contracted in or out, ask whoever prepares the wages.
Tax credits are not included in this calculation.