Italian citizenship: the 3 routes to gaining Italian nationality

For many Italian descendants, the most direct route to obtaining Italian nationality is through citizenship by descent, also known as jure sanguinis (right of blood). This option is available to those with Italian parents, grandparents, or even great-grandparents, provided the line of citizenship was never broken.

Italy’s approach to citizenship law is notably generous compared to many other countries. While some limit claims to one or two generations, the Italian government allows applications based on ancestry dating back to 1861, the year the modern Italian state was established. This makes it possible for a large number of Italian Americans, British citizens of Italian descent, and others to reclaim their dual citizenship—a route we assist many of our clients with.

Who qualifies for Italian citizenship by descent?

To apply for Italian dual nationality through jure sanguinis, the following criteria must typically be met:

• Your Italian ancestor must have been alive and an Italian citizen on or after 17 March 1861
• Generational limit: after the new rules applicants must now have at least one parent or grandparent born in Italy to qualify for citizenship. Claims based on more distant ancestors, such as great-grandparents, are no longer accepted.
• They must not have naturalised in a foreign country (such as the UK or US) before the birth of the next person in your direct line
• No one in your ancestral line must have formally renounced their Italian citizenship
• If claiming through a female ancestor, additional legal rules apply based on the 1948 Rule
• Italian language proficiency: proficiency in Italian is now mandatory for all applicants under jure sanguinis, a requirement previously limited to naturalization through marriage or residency. This includes passing a state-sanctioned language exam or an equivalent certification.

Many of our clients are surprised to learn how far back these rights can extend. With the right documentation—such as a valid passport, birth and marriage records, and naturalisation certificates—you may be closer than you think to securing your Italian dual citizenship.

The 1948 Rule: what it means for applicants through the maternal line

Italian citizenship law has evolved significantly over time, but one historic limitation still affects many applicants: the 1948 Rule. Until 1 January 1948, Italian women were not legally permitted to pass on citizenship to their children. As a result, if your Italian ancestry comes through a female ancestor, your eligibility will depend on when the next person in your lineage was born.

This rule often impacts those claiming Italian dual citizenship through their mother or grandmother—especially individuals of Italian-American or British-Italian descent.

How the 1948 Rule works in practice

If the child of the Italian mother was born after 1 January 1948:

• You may apply through the standard administrative process, either at the Italian Consulate (if applying from abroad) or at your local Comune (if residing in Italy)
• No legal proceedings are necessary

If the child of the Italian mother was born before 1 January 1948:

• You cannot apply via consular or administrative channels
• Instead, you must file a legal claim in an Italian court—commonly referred to as a 1948 Case
• These cases typically have high success rates, but must be handled by a qualified lawyer based in Italy

As we experience with many of our clients, the 1948 Rule often comes as an unexpected hurdle, particularly for those already holding foreign citizenship or residing outside Italy. However, it is entirely possible to obtain Italian dual nationality through a maternal line—even where court intervention is required.

We assist individuals and families in navigating this process, ensuring that the required documents are properly compiled, legal arguments are well prepared, and your case is presented effectively to the Italian courts.

Route 2: Italian citizenship by marriage (iure matrimonii)

Gaining Italian nationality through marriage—also known as iure matrimonii—is one of the most direct legal routes to dual citizenship for foreign spouses of Italian nationals. While the process is relatively straightforward, recent updates to citizenship law have introduced stricter requirements to discourage fraudulent applications and ensure meaningful social and cultural integration.

This route is open not only to spouses living in Italy, but also to those residing abroad—including many British citizens and Italian Americans seeking Italian dual citizenship through their family ties.

Who qualifies for Italian citizenship by marriage?

To be eligible, you must meet the following conditions:

1. Marriage duration:
   1. You must have been married to an Italian citizen for at least:
      • 2 years, if living in Italy
      • 3 years, if living abroad
   2. These timeframes are reduced by half (to 1 year and 1.5 years, respectively) if the couple has children together, including legally adopted children
   3. Same-sex civil unions are treated equally under Italian law, following legal recognition in 2016
2. Valid marriage registration:
   1. The marriage must be legally recognised and registered with the Italian authorities
   2. The marriage must remain valid and ongoing throughout the application process
   3. Applications are automatically invalidated if the couple separates (legally or de facto)
3. Language requirement:
   1. Applicants must demonstrate knowledge of the Italian language at B1 level or above
   2. A valid certificate must be issued by an approved language institution and submitted before applying
   3. This ensures applicants are prepared to integrate into Italian society
4. Criminal background check:
   1. You must provide a clean criminal record from your country of origin
   2. Any serious convictions in Italy, or crimes against the Italian government or state, will likely disqualify your application

Route 3: Italian citizenship by residence (“naturalisation”)

For foreign nationals who have lived in Italy for an extended period, Italian citizenship by residence—also known as naturalisation—offers a viable pathway to becoming an Italian citizen. This route is particularly relevant for individuals who have established long-term ties in Italy, whether for personal, professional, or financial reasons.

As we experience with many of our clients, especially those holding foreign citizenship but planning to settle in Italy long term, this process represents a strategic step toward achieving dual nationality and full integration into Italian society.

Who is eligible for naturalisation?

Applicants must demonstrate lawful and continuous residence in Italy, as well as fulfil specific requirements related to financial stability, civic integration, and language skills. The standard residency requirement is:

• 10 years for non-EU citizens
• 4 years for EU citizens

However, the law provides shorter timeframes for certain categories of applicants.

Special Categories with Reduced Timeframes

This option usually requires at least 10 years of legal residence in Italy for non-EU citizens and 4 years for EU citizens. However, some categories will enjoy reduced timeframes depending on their status or family background:

1. By Descent
   1. Italian ancestry (up to 3rd degree): 3 years
   2. EU citizens with Italian ancestry: 2 years
2. Professional Status
   1. Public servants in Italian administration: 5 years
   2. Employees of Italian state companies: 5 years
3. Special Status
   1. Stateless persons: 5 years
   2. Adult adoptees of Italian citizens: 5 years
   3. Refugees: 5 years
4. Preferential Categories
   1. Born in Italy: 3 years
   2. Service to Italian state: 3 years
   3. High-value investment status: 2 years

Key eligibility requirements for naturalisation

To qualify for Italian nationality by residence, applicants must meet the following conditions:

1. Legal residence:
   1. You must hold a valid residence permit (permesso di soggiorno)
   2. Continuous registration with the Comune is required
   3. No long absences from Italy during the qualifying period
2. Financial self-sufficiency
   1. Minimum income of €8,500 per year for single applicants (higher thresholds apply for families)
   2. Proof of financial stability via:
   3. Last three years’ tax returns
   4. Employment contracts or evidence of steady income
3. Language proficiency
   1. A valid B1 level Italian language certificate
   2. Must be issued by an approved testing centre
   3. Certificate must be no more than four years old
4. Civic integration
   1. Clean criminal record
   2. No risk to national security
   3. Evidence of social integration (e.g. community involvement, education, family life)
   4. May be required to pass a civic knowledge test

Essential documents when applying for Italian citizenship

The key is to prove your lineage through official documents such as birth certificates, marriage certificates, and naturalization records. It is necessary to keep in mind that the rules and eligibility criteria can vary depending on when your ancestors emigrated from Italy and when they naturalised (if they did it).

1. Birth Certificates
   1. Your own birth certificate
   2. Birth certificates for each person in your line of descent
   3. Your Italian ancestor’s birth certificate from their comune in Italy
2. Marriage Certificates
   1. Marriage certificates for all couples in your line of descent
   2. Must include apostilles and certified translations
3. Death Certificates (if applicable)
   1. Death certificates for deceased ancestors
   2. Required to prove the end of any previous marriages
4. Naturalisation Records
   1. Proof of when/if your Italian ancestor naturalised
   2. “No Record Found” letters if they never naturalised

Document Authentication

Please note that throughout this entire process all non-Italian documents must be:

•  Apostilled (or legalized if from non-Hague Convention countries)
• Translated into Italian by a certified translator
• Authenticated by the Italian consulate/embassy in your jurisdiction

Common challenges when applying for Italian citizenship

Applying for Italian citizenship—whether by descent, marriage, or investment—can be daunting experience due to its complexity. Each route comes with its own procedures, timelines, and legal nuances. These are the most common pitfalls and challenges our clients encounter when they embark on this journey:

Start early: documentation takes time

Regardless of your chosen route, the process begins with paperwork. Collecting and legalising the required documents—such as birth, marriage, and death certificates—can take several months, particularly when foreign records must be translated and apostilled. For many applicants, especially those living abroad, this is one of the most time-consuming stages of the process.

We always recommend that clients begin gathering records as early as possible to avoid delays in meeting the formal Italian citizenship requirements.

Proving eligibility through jure sanguinis

For those applying through Italian citizenship by descent (jure sanguinis), eligibility often depends on historical details that can be difficult to verify. Your Italian ancestor must not have renounced their Italian nationality before the birth of the next person in your lineage, and the family line must remain legally uninterrupted.

Although more than 60 million people worldwide could potentially qualify for Italian nationality by descent, proving eligibility under current law requires careful documentation and attention to legal details—especially when the 1948 Rule or multiple jurisdictions are involved.

Avoid delays: use professional legal support

While some applicants attempt to navigate the process independently, errors in documentation are among the most frequent causes of rejection. Professional services that specialise in Italian citizenship can streamline your application, identify potential issues early, and ensure compliance with legal requirements in both Italy and your home country.

At The Italian Lawyer, we assist clients from the UK, the US, and beyond in preparing fully compliant applications, whether you’re applying for jure sanguinis, citizenship by marriage, or investment-based citizenship.

Stay organised and proactive

Organisation is key. With the volume of applications growing each year—especially for Italy’s jure sanguinis route—processing times can range from several months to over two years, depending on the consulate or municipality involved.

Keeping well-structured records, tracking application updates, and maintaining regular contact with the relevant authorities can make a significant difference in the timeline of your case.

Consider alternative pathways

If you are not eligible through descent, other routes may be available. For example:

• Italian citizenship by marriage may be available after two years of marriage (or one year if living in Italy), provided the marriage is registered and you meet language and background requirements.
• Italian citizenship by investment is open to high-net-worth individuals who contribute significantly to the Italian economy—either through startup capital, government bonds, or strategic business activity.

Each of these pathways has its own set of citizenship requirements for Italy, so it’s essential to understand both the legal and financial commitments before proceeding.

Preparation is everything

Whether your goal is dual nationality, greater mobility across Europe, or reconnecting with your Italian roots, obtaining citizenship of Italy is a process that rewards preparation. Understanding the steps involved, gathering the right documents, and seeking qualified legal assistance can dramatically improve your chances of success.