We reimburse some of our employees for mileage. We currently have this set up as a non-taxable pay type (piece rate), where we input the miles and then let the system calculate the reimbursement. However, we recently found out that the system is applying FICA and other benefits based on this reimbursement...

We just had a new issue raise it's ugly head with payroll. We have an employee that gets salary from 2 departments and volunteer mileage from another. The software as of April is now splitting her fica, worker's comp, unemployment comp between the salary departments and the mileage department...