Is proof of address should be resident or non-resident, if non-resident, are you sure they can accept foreign bank statement with non resident address as proof of address for NIF?
Shall foreign bank statement be in Portuguese address? if its in Portuguese address is easier to get NIF or not in Portuguese address? overall what will make it difference if I register as resident address or non-resident address? (by considering factors like: easy to open, easy to maintain no domicile issue happens, no tax issue happen, …) may please advise?