The program's interface is very clear and the navigation is intuitive, thanks to which it should not be difficult to work with people who are not familiar with using the computer. On the functional side, the program's capabilities include issuing invoices and various types of invoices (VAT, VAT MP, VAT RR, VAT margin, pro forma, internal, corrective), duplicates and corrective notes - also in foreign languages and currencies. It allows you to maintain a directory of contractors and products, although it does not have (similarly to any other program in this group) functions to service the warehouse. It allows you to modify the graphic layout of generated documents. It does not support fiscal devices.
Simple Invoices allows printing of transfer forms, and is also integrated with the payroll, interest and tax calculators. An optional English-language user interface is also available.
New in version 2.0
Issuing debt collection documents: reminders and calls for payment as well as interest notes