This software is a PAYE ready reckoner for UK use only. It has a default tax code, representing the 2011-12 tax free allowance of £7,475 per annum.
Monthly gross salary should be entered and it will calculate Tax, National Insurance and Net when the 'calculate' button is pressed.
It assumes that the employee is under 65, receives no benefit in kind and is entitled to full personal allowances. It also assumes that income accrues evenly throughout the year.
It is not meant to be used to calculate real salaries and is merely for guidance.
