The non-lucrative residence residency is a Spanish visa available to non-EU citizens who have sufficient economic means to stay in the country without engaging in any work or professional activity.
If you’ve made the decision to come and live permanently in Spain, you must legally make it your home . The Spanish government’s definition of ‘permanent’ is if you’re in the country for a total of 183 days or more per year.
The NIE (Número de identidad de extranjero) is your all-purpose identification and tax number in Spain. You need it for everything that involves a official process in Spain, such as owning a car or home.