In Singapore, there are some unique features in the calculation of payslips for employees. An example is the calculation of CPF (Central Provident Fund) payments that apply to both employees and employers, although at different rates, depending on a number of factors. In addition, the calculation of overtime pay is subject to rules & regulations in Singapore. There is also the issue of "contract of service" versus "contract for service".
General issues include the calculation of additional pay and deductions, such as deductions for charitable causes. The yearly salary statements need to be printed or auto-submitted for inclusion into Income Tax calculations.