Until de next 30th April companies are obliged to register their ultimate beneficial owner as per law nº. 89/2017 of 21st August. This can be done directly by the company, by its accountant or by a duly empowered lawyer by filling and sending an online form available at https://rcbe.justica.gov.pt/
All civil and commercial companies incorporated under Portuguese law, or companies with activity in Portugal that requires a tax number are subject to this obligation.
Noncompliance can lead to fines from € 1.000,00 to € 50.000,00.