Short description of SOS - Estimating/Invoicing/Payroll 3.06: Create quick & accurate estimates. Transfer Estimates to Invoicing with Time & Material Billing option. Keep up-to-date with Accounts Receivable reports. Track customer history of completed jobs & payment history. Enter/edit personnel data. Enter paychecks with automatic deductions for Federal Withholding, FICA & Medicare taxes. View/print monthly, quarterly, & YTD payroll reports.