Maintaining an Employee's Tax Status Information for Monthly Payroll
Income tax status data is controlled by the Infotype 0145 Income Tax. The amount of income tax is calculated from the Payroll and the SYOYO calculation, and is based on the status you enter in infotype 0145.
Individual tax status information is controlled with Infotype 0145. Although you can use the menu to maintain the data, SAP recommends that you perform a personnel event instead as this is the only way to ensure that a history of personnel tax status is saved.
Defining an Employee’s Individual Tax Status Information