Submitting an application for Italian citizenship by residence requires careful preparation of the supporting documentation. Among the documents that deserve particular attention are the birth certificate and the criminal record certificates issued by the authorities of the applicant's country of origin and of any other country where the applicant has lived for at least six months since the age of 14. Incomplete, outdated, or improperly authenticated documentation may delay the application process or result in requests for additional documents from the competent authorities.
Why the birth certificate is essential
The birth certificate is one of the key documents required for an application for Italian citizenship by residence, as it enables the authorities to accurately verify the applicant's identity, personal details, and parentage. It is therefore essential that the certificate contains all the required information and is free from errors.
Although, in most cases, a birth certificate does not have a formal expiration date, it is advisable to submit a recently issued copy if the available document is particularly old or contains incomplete annotations. The Italian authorities may request an updated certificate if they consider it necessary to verify the applicant's current civil status.
The role of the criminal record certificate
Alongside the birth certificate, the criminal record certificate plays a crucial role because it allows the authorities to determine whether the applicant has any criminal convictions that could affect the granting of Italian citizenship.
In general, the certificate must be obtained from the applicant's country of origin as well as from any country where the applicant resided for a significant period before moving to Italy (at least six months after reaching the age of 14). Since this document has a limited period of validity, careful planning is essential throughout the application process.
A criminal record certificate is generally valid for six months from its date of issue. Once this period has expired, a new certificate must be obtained, as an expired certificate may result in the suspension of the application review or a request for updated documentation.
Original documents and legal validity
When applying for Italian citizenship by residence, foreign documents must be submitted in the form required by Italian law. Generally, the original certificates or legally valid certified copies must be provided. Simple photocopies without proper certification are normally not accepted for the purposes of the procedure.
Before submitting the application, it is always advisable to verify that each document has been issued by the competent authority and complies with the formal requirements established by the Italian administration.
Apostille or legalization: which procedure applies?
For a foreign certificate to be valid in Italy, its authenticity must be recognized according to the procedure applicable in the country where it was issued.
If the issuing country is a party to the 1961 Hague Convention, the document must bear an Apostille, which allows it to be used in other member countries without further consular legalization. If the country is not a party to the Convention, consular legalization by the competent authorities will generally be required.
In both cases, the Apostille or legalization must be obtained in the country where the certificate was issued before the document is submitted to the Italian authorities.
Translation into italian
Any certificate drafted in a language other than Italian must be accompanied by a translation that complies with the applicable legal requirements. Depending on the circumstances, the translation may need to be sworn before an Italian court or certified according to the procedures established by the competent Italian consulate.
It is essential that the translation faithfully reproduces the entire content of the original document without omissions or alterations, enabling the authorities to carry out the necessary checks during the examination of the application.
Errors that may delay the procedure
A significant proportion of delays in Italian citizenship applications is caused by irregularities in the submitted documentation. The most common issues include expired criminal record certificates, the absence of an Apostille or legalization where required, translations that do not meet the applicable standards, or certificates issued by authorities lacking the necessary competence.
Even minor inconsistencies in personal data—such as differences in the spelling of names or surnames, discrepancies in dates of birth, or incomplete information—may result in requests for clarification and significantly extend the processing time.
How to properly prepare your documentation
To complete an application for Italian citizenship by residence as smoothly as possible, it is advisable to collect all required certificates well in advance, verify that they are still valid, ensure that all personal details are consistent across the documents, and complete any necessary Apostille, legalization, and official translation procedures.
A thorough review of the entire documentation before submission helps reduce the risk of requests for additional documents and contributes to a smoother and more efficient administrative process.
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The content of this article is intended to provide general information on the topic. For doubts or specific cases, it is advisable to seek specialized legal advice tailored to your particular situation.
Article written by Alessia Ajelli, Managing Associate of LCA Studio Legale, Italian lawyer specialized on Italian immigration and citizenship law.
Article updated on 07/14/2026