Reside in Spain for 10 years. Yes, that's right. You need to have lived in Spain for 10 consecutive years to be eligible to become a Spanish citizen.
Become fluent in Spanish. In order to become a citizen of Spain, you'll need to be able to speak, read and write Spanish with little or no difficulty. You might be asked to prove this fluency if it falls into question during the application process.
Prove that you are residing in Spain the majority of the time. While there are no restrictions on travel during the 10 year residency period, Spanish officials will attempt to find out whether or not you've actually been living in Spain legitimately during that period of time. It is likely that your citizenship request will be denied if your residency comes into question.
Fill out an application for Spanish citizenship. This will require that you provide copies of your current documents. A background check is also needed to prove that you are a person of good character.
Submit your application with the requisite filing fee. This fee may vary considerably depending on your individual circumstances.
