Fiscalization in Portugal was introduced in 2008.
Portugal has a so-called software-type fiscalization system. The concept is technologically open and not limited by the proprietary solution of any manufacturer
There are no mandatory hardware devices that have to be used (e.g. certified fiscal printers), but one of the main requirements in Portugal, besides sending data online, is to use a certified POS solution that ensures that all transactions are recorded and stored in the way that manipulations are not possible.
Source Tijana Milojevic