(Based on Use in Commerce) Software as a service (SAAS) services featuring software for bookkeeping, online invoicing, expense tracking, time tracking, financial reporting, payment processing, tax preparation, customer relationship management, and employee payroll administration.(Based on 44(e)) Software as a service (SAAS) services featuring software for bookkeeping, online invoicing, expense tracking, time tracking, financial reporting, payment processing, tax preparation, customer relation...