ocr: The Billing Phase Function allows you to set uP different billing methods for each phase of the job. These methods include Time & Material, Hourly, Percent Complete, Fixed Fee, Square Foot, and four types of Cost Plus. This function contains several screens that allow you to determine how labor, expense, and reimbursable charges are to appear on the worksheet and invoice. In addition, individual sort levels can be chosen for the worksheet and the invoice.