A payroll software does the payroll calculations for you every month. One of the main advantages of having a payroll software is that it saves time in calculating and paying out employees after account tax payments, pre tax deductions, superannuation, bonuses, and other sundry payments. 

Another advantage of having a payroll software is that it produces accurate payslips; this means that it will save the organization the hassle of manually entering payroll information and to make expensive mistakes; it also means that employees will be able to view their payroll online.