Diagnosis
You cannot calculate tax if there are payments entered in different costcenters during a single process.

Procedure
If you want to calculate tax for payments that are entered in differentcost centers, you need to separate them and process paymentscorresponding to each cost center separately. For example, within aregular payroll, you can make additional payments that are assigned tothe current cost center. But you will have to make any payments enteredin a cost center other than the current one through an off-cycle run.