Certificate from the General Records Office with revenue stamp; Certificate of family situation with revenue stamp; Certificate of residence history; if there is more than one municipality of legal residence, certification of residence history for each municipality must be provided with revenue stamp; Authenticated copies of tax forms 740 or 101 for the three years immediately preceding application, or certificate issued by the authorized tax office of income earned in the three years immediately preceding application.
application for citizenship to be made on a pre-printed form available at the Prefecture of the place of residence; birth certificate from country of origin with all pertinent data; in the case of documented impossibility, statement issued by the diplomatic or consular authorities of the country of origin, duly translated and witnessed, indicating name, surname, date and place of birth as well as names of applicant’s father and mother; Criminal record from applicant’s country of origin and country of residence (self-certificate from EU citizens only); Authorization of the authorities of the country of origin to release all pertinent information on the applicant that may be requested by the Italian diplomatic authorities, using the pre-printed form available from the Prefecture; Declaration renouncing the protection of the Italian diplomatic and consular authorities from the authorities of the country of origin, using the pre-printed form available at the Prefecture (only for applicants requesting citizenship in order to reside in Italy) Certificate with revenue stamp of Italian citizenship of spouse (only for those applying for citizenship following matrimony). After application is made the following additional documentation will be requested by the competent authorities: Certificate concerning charges pending in the applicant’s area of residence issued by the Public Prosecutor’s Office at the locally authorized courts; Data concerning the applicant’s entrance and period of stay; Copy of marriage certificate from the Italian municipality where the marriage is registered (only for those applying for citizenship following matrimony). In order to shorten the process the applicant can always send certificates in his/her possession, even if not authenticated, by electronic means.
Italian citizenship can be reinstated once it is lost
One year from the date in which residence is established in Italy, except in the case of renunciation within that same period. By Application serving in the Italian armed forces; being hired as a public servant at the service of the State, even abroad; residents abroad: providing the Italian Consulate with a statement stating the intention to reinstate Italian citizenship and establishing residency in Italy within one year of that statement; statement by Italian citizens who automatically lost citizenship by marrying a foreigner before January 1st 1948.