Can I use a virtual mailbox address for my NIE or tax correspondence in Spain?
Yes, services like The Digital PO Box provide correspondence addresses that can be used for communication with the Agencia Tributaria and other Spanish authorities. However, a virtual mailbox is not a legal domicile or fiscal residence. For NIE applications, you may need to show a residential address during the initial process, but ongoing correspondence can be directed to your TDPB address.