I need help with this question as well.  What is a WORKABLE solution to this issue?  I need to be able to charge per diem and mileage to jobs but I also want to run that through payroll without it being taxable.  How can you do this?  I know that if there is labor associated with the reimbursement, the reimbursement will show up on the job cost, but not if it's only a reimbursement and no hours, even with a job selected on a labor line.  Please help.