The integration process in Spain for EU citizens follows a structured sequence. First, register with your local town hall for the Padrón Municipal, confirming your address. Next, obtain your NIE for all legal and financial activities. Following this, apply for your Certificado de Registro de Ciudadano de la Unión, establishing your residency. With residency established, access to the public healthcare system (Sistema Nacional de Salud) is possible, often linked to employment or pension contributions. Finally, establishing tax residency requires spending more than 183 days per year in Spain. These steps typically take 3 to 6 months to complete effectively, requiring sequential application and accurate documentation submission at each stage.