Should I Include Tax in the Total Refund Amount?

Say your Pro finished an hour early and you need to refund $40.00 including a 6% tax rate. When entering in the amount to refund, do you enter $40.00, or $37.60? One of the great things about the Cloud refund suite is that it automatically pulls tax from the refund amount, so refunding the full amount including tax ($40.00 in this case) is the way to go.