Work out your annual income from the money you’ve received so far this year. A year to date calculator or YTD calculator is a tool used by lenders to work out your annual income from the income you earned in a part of a year.The lender will either use the YTD gross income figure from your most recent payslip, the gross income stated in your last group certificate or the ATO Income Statement (obtained from myGov website). In most cases, the banks will calculate your income from both your payslip and group certificate. They will use the lower of the two incomes in their assessment