What the NIE is, who needs it, which documents to bring, what it costs and how to book your appointment – updated for 2026.
EU citizens can just start working. Everyone else needs the right visa and permit. The main routes, documents and steps for 2026.
Residence periods, the DELE A2 and CCSE exams, the fee, the online application and the oath: how foreign residents become Spanish citizens in 2026.