You perform the tax calculation through subschema EST0. This subschema calculates the employees’ employment tax deductions and payments and allocates the corresponding payment keys to be processed when executing the main payroll schema.

In the payroll schema the previous steps have taken place which are a condition for performing this process correctly.

The subschema EST0 (Tax Calculation) processes the function EST00. The EST00 function:

• Assigns the tax basis wage type to a payment key wage type, depending on the payment key assigned to the employee in the infotype Fiscal Data (0062)
• Determines the deduction percentage to apply to the general tax basis and the payment-in-kind tax basis.
• Determines the tax deduction amount and the payment.
• Stores the results in the internal IT table and, depending on the parameter set, also stores them in the results RT table.

The payroll calculation includes specification of the deduction amount of employee employment tax.

You will also find more information in the documentation on the corresponding fields in the system.