The Spain NIE number is the Foreigner’s Identification Number (Numero de Identificacion de Extranjero). Your NIE number is the official number used to identify UK nationals residing in Spain. You must apply for an NIE number if you plan to stay in Spain for more than 90 days.
An NIE is required for many significant activities, including working, studying, purchasing properties, paying taxes, and opening a bank account. As soon as you arrive in Spain, contact your neighbourhood Oficina de Extranjeros (Foreigner’s Office), to schedule an appointment for your NIE number.