Invoices 1,2,3 is a one-station or multi-station program for issuing VAT invoices and correcting VAT invoices, dedicated to companies that do not run warehouse management. The application contains VAT registers, a database of contractors, a price list of goods and services, a library of currencies, currency rates as well as units of measurement and symbols of PKWiU. It supports all types of VAT invoices and corrections currently in force, as well as enables the work of many issuers understood as separate business entities.

Invoices 1,2,3 allow you to create sales documents in any currency and in Polish or English language. In addition, you can export invoices to such formats as PDF, HTML, XML, TXT and many others, and send them as an e-mail attachment directly from the application level. In the presented version of Faktury 1,2,3 is dedicated to service and commercial companies that do not run warehouse management.

The user interface is designed to make invoicing as fast and error-free as possible. This program is written in client-server technology. The server part is one of the best free database engines, the Firebird server.