After two full years with your Carne de Extranjeria ( You still have to pay your foreigner’s tax during that time) you can apply for ‘Inmigrante’ status, which is a permanent visa with no expiry date. To do so you must complete the following:
● Form F004 (Either click on the link and print it off the website. Ignore the description, just find F004, open the document and print it. Or get it for free at immigrations.) Check “Cambio de calidad migratoria a Inmigrante”
● Pay S/. 58.93
● Pay $300 if not married to a Peruvian to change your calidad migratoria.
● Make sure your Tasa Anual and Prorroga have been paid
● Copy Passport
● Copy CE
● Letter to immigrations.
● Not have left Peru for more than 3 consecutive months in one year.
● Present your first and most recent paystubs.
● INTERPOL background check
A person who has 2 years of legal residency in Peru, be it by marriage or other reasons such as work, can apply for naturalization. The 2 year requirement starts from the date one acquires residency in the country, provided that residency never lapses. The years must be consecutive. If a person has a work visa that expires, and renews it later, it doesn’t count as two consecutive years. The renewal must happen before the expiration of the first. For married people, simply staying in the country is sufficient.
The person does not lose their previous citizenship, no letter of resignation of it is required. Unless acquiring citizenship in Peru would conflict with the former country’s laws, such as for Japanese Citizens.

