gst - vat invoicing is a complete sales management system that includes: invoicing, inventory management, automated billing, mailing list management, and sales tracking. special attention has been paid to meeting the goods and services tax (gst) and value added tax (vat) tracking and reporting requirements of jurisdictions that impose gst or vat taxes. features: * an intuitive graphical interface with pop-up menus and pick lists that minimize typing. * inventory management once you record purchases of the products that you sell, gvi tracks inventories by deducting items sold from inventory on hand. inventory may be managed using either the first in-first out or last in-first out methods. * customer tracking. customer profile reports show each customer, the items they have purchased and the dates each item was purchased. * sales tracking. product sales reports give a complete picture of the products that are selling and those that are not. the buyers report shows you the names of customers who have purchased a particular product.  special tax reports provide information needed when filing gst / vat taxes. * mailing list management. customers can be separated into up to 100 groups. mailing lists and address labels can be generated for any combination of one or more groups of customers. this feature lets you target your mass mailings to just those customers who are most likely to respond to a given mailing. * gvi can be configured to automatically compute two sales taxes (e.g., canadian gst and pst). * income data entered into gvi can be imported into owl’s gst / vat accounting (gva) to provide complete tracking of both sales income and business expenses.