Camperman:-
Just to clarify:-
1 If you move to Spain intending to either formally work here, or to live here for longer than a total 183 in a year, or make your main residence here, then you must register on the EU Citizen Register immediately.
2 If you just come as a visitor but then stay permanently for 3 months or more you must register.
3 If you stay for 183 total in a year then you must register.
In cases 1 and 3 you are also tax resident, and possiblly in case 2 also.
PS You could of course lie and hope not to get caught.
This message was last edited by johnzx on 18/08/2016.