General knowledge
The Tax Agency has a registry of powers of attorney that allows the registration of powers granted by individuals and legal entities to carry out tax procedures online.
In order to alleviate the difficulties of proving the representation of someone acting online and to promote action before the public administration on behalf of third parties electronically, the Tax Agency has a register of powers of attorney that allows the registration of powers granted by natural and legal persons to carry out those procedures and actions that, in tax matters, can be carried out online through this Tax Agency website.