Quick summary:
- Italian citizenship by descent (jure sanguinis) is now limited to two generations under Law 74/2025, so only a parent or grandparent born in Italy can typically transmit citizenship.
- Eligibility depends on whether your Italian ancestor held exclusively Italian citizenship at the relevant date and whether the bloodline was ever interrupted by naturalization elsewhere.
- Marriage to an Italian citizen offers a separate path to citizenship with its own residency and documentation requirements.
Determining Italian citizenship eligibility by ancestry means tracing whether a parent or grandparent born in Italy passed down citizenship without a break in the family line, under rules that changed significantly in 2025. The answer depends on generational distance, the citizenship status of that ancestor at specific dates, and whether any naturalization elsewhere interrupted the chain before the next person in line was born.
Anyone exploring Italian Citizenship Eligibility by ancestry should understand that the rules changed substantially in 2025, and older assumptions about unlimited generational claims no longer apply to many new applicants. Citizens of Italy can help individuals understand these changes and assess the requirements that may apply to their circumstances before investing time in gathering documents for a claim that may not qualify.
What Changed Under the 2025 Citizenship Law
Italy’s citizenship-by-descent framework was reshaped by a legislative decree issued in March 2025. The decree introducing changes to Italy’s citizenship by descent rules was officially converted into law on 23 May 2025, known as Law No. 74, setting new limits on eligibility including a generational cap.
The core change is straightforward:
- Italian citizenship by descent is now limited to two generations, meaning applicants must have a parent or grandparent born in Italy.
- If citizenship was officially recognized before 27 March 2025, the applicant is still eligible, and the application is evaluated under the law in effect at the time of submission.
- The new framework includes five exceptions written into the law, three of which protect people who started the process before the cutoff, and two of which are permanent rules about the parent or grandparent.
This marks a sharp departure from the prior system. Before Law Decree 36/2025 was introduced on March 28, 2025, Italian citizenship by descent had no generational limitations. Applicants with Italian great-grandparents or more distant ancestors who had not yet filed could lose eligibility entirely under the new framework.
Core Eligibility Tests That Still Apply
Even with the generational cap, several long-standing requirements remain central to any ancestry claim.
- Citizenship status at the key date. Applicants can now only claim citizenship by descent through a parent or grandparent, and that parent or grandparent must have held only Italian citizenship, not dual citizenship, at the time of the applicant’s birth or death.
- No broken chain of transmission. If an ancestor naturalized abroad before the next person in the line was born, that breaks the transmission chain under longstanding Italian citizenship rules.
- Historical cutoff for unification. Ancestors must have emigrated after Italy’s formal unification date, since citizenship could not exist before the country itself did. The U.S. Department of State’s guidance on dual nationality outlines how foreign citizenship laws, including ancestry-based claims, interact with U.S. citizenship status.
Alternative Path: Citizenship Through Marriage
Ancestry is not the only route to Italian citizenship. Spouses of Italian citizens can pursue naturalization through a separate legal process with its own timeline and conditions.
| Factor | Citizenship by Descent | Citizenship by Marriage |
|---|---|---|
| Basis | Parent or grandparent born in Italy | Marriage to an Italian citizen |
| Residency requirement | None required for the applicant | Two years in Italy, or three years abroad |
| Generational limit | Two generations (post-2025 law) | Not applicable |
| Reduced timeline | Not applicable | Halved with minor children |
If married to or in a civil partnership with an Italian citizen, a person may be granted Italian citizenship after two years of residence in Italy, or three years if residing abroad, with both periods halved for those with natural or adopted children. The marriage must also be properly registered with the Italian municipality holding the citizen spouse’s records before an application can move forward.
Frequently Asked Questions
Can I still claim citizenship through a great-grandparent? Generally, no. Starting immediately under the new regulation, applicants will only be considered if their ancestor born in Italy is a parent or grandparent, and great-grandparents or more distant ancestors will no longer be considered. Limited exceptions exist for applications already filed before the cutoff.
Does my ancestor’s dual citizenship disqualify me? It can. Eligibility generally requires that the parent or grandparent was an Italian citizen only, with no interruption of the Italian citizenship bloodline. Holding a second citizenship at the relevant date typically breaks the qualifying link.
How long does a marriage-based application take? The processing window generally spans 24 to 36 months following formal acceptance of the dossier, governed by Decree Law No. 130 of 2020, which standardized the evaluation period for marital naturalization.
Do I need to live in Italy to qualify through marriage? No. Residing in Italy is not a prerequisite for obtaining citizenship through a spouse, since the law provides a path for those living abroad, provided the Italian spouse is correctly registered in the AIRE system.
A Practical Next Step
Determining eligibility under Italy’s updated descent rules or through marriage requires careful attention to dates, generational limits, and documentation standards that leave little room for error. Citizens of Italy focuses on helping applicants assess eligibility and prepare accurate, well-documented filings for Italian citizenship cases, including naturalization through marriage. Anyone weighing these options can Learn More Citizens of Italy and review which pathway best fits their family history and residency situation before starting the formal application process.
