If your employee's tax is higher this month compared with the previous month, please check that the allowance is assigned with the correct code property as follows:
Go to the Payroll module and click Pay Element Setup.
Select the allowance and click on the three-dotted button.
Monthly basis allowance- do not select Subject to Tax Additional Wage Code.
Variable basis allowance (saraan tambahan)- select Subject to Tax Additional Wage Code.
Lastly, compare your employee's income with the PCB calculator.