Citizenship by Marriage: Complete Guide to Eligibility, Process and Fastest Countries

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Citizenship by marriage lets a foreign national acquire the nationality of their spouse’s country, opening doors to work, travel, and residency rights. Also known as naturalization by marriage, it requires a legally valid, bona fide marital union and you must also meet each country’s residency and eligibility rules.

This guide explains the citizenship by marriage process, the documents you’ll need, and the role of spousal visas or permanent residency. We also highlight which countries offer citizenship through marriage, including the fastest and easiest options, helping you navigate the journey from marriage to citizenship with confidence.

What is citizenship by marriage?

The legal procedure by which a foreign national acquires the nationality of their citizen spouse’s country is known as citizenship by marriage, or naturalization by marriage. This approach is often grounded in the jus matrimonii principle, recognizing that a legitimate marital union can establish eligibility for naturalization.

Spouses who obtain citizenship gain a range of rights and benefits, including the ability to vote, work, travel freely, and enjoy permanent residence. While the process generally requires demonstrating a legally valid marriage and fulfilling residency and eligibility criteria, specific rules vary across countries.

The journey to citizenship through marriage usually follows several key stages. After marrying a citizen, the foreign spouse typically applies for a spousal visa, often with support from immigration services or an immigration attorney.

The citizen spouse plays a critical role in proving the marriage’s authenticity to a consulate or embassy. Once approved, the foreign spouse can obtain permanent residence, for example, a Green Card in the U.S., and, after meeting residency and physical presence requirements, apply for naturalization.

Authorities verify that the marriage is bona fide, rather than entered solely for immigration purposes. With proper documentation, such as marriage certificates, joint financial records, and proof of shared life. eligible applicants can successfully complete the path to full citizenship.

What are the key requirements for a citizenship by marriage?

citizenship through marriage

Eligibility for citizenship through marriage depends on several key factors:

  • Residency requirement: Most countries require the foreign spouse to live in the country for 2 to 5 years, sometimes complying with a minimum period of continuous residence with the citizen spouse.
  • Genuine marriage: Authorities verify a bona fide marriage by looking at joint bank accounts, lease agreements, utility bills, or other shared responsibilities.
  • Language and integration: Applicants may need to demonstrate knowledge of the country’s language, pass a civics test, or show understanding of its culture.
  • Good moral character: Background checks ensure the spouse has no serious criminal record.
  • Financial and legal requirements: Some countries have minimal or no financial thresholds. Others may require proof of stable income to ensure that the applicant can financially support themselves and won’t become a burden on the state.

Common Documents and Application Process

Applying for citizenship through marriage typically involves several key steps and supporting documents:

  • Marriage certificate: Proof of a legally valid marriage recognized by the country.
  • Permanent residency or spousal visa: Evidence of lawful residence, such as an EU permanent residence card.
  • Proof of a bona fide marriage: Joint bank statements, lease agreements, utility bills, photos, or shared tax returns.
  • Residency and physical presence evidence: Records showing compliance with the continuous residence requirement.
  • Background checks: Police clearance certificates or other documents to demonstrate good moral character.
  • Biometrics appointment: Applicants may be required to attend a biometrics appointment, where fingerprints, photographs, and other identifying information are collected to verify identity.
  • Application forms: Country-specific forms, such as Form N-400 in the U.S., completed and submitted with required fees.
  • Language and civics tests: Some countries require basic proficiency in the official language and knowledge of civics.
  • Naturalization interview and oath ceremony: Final steps typically include an interview, verification by the relevant immigration authority or consulate, and taking an oath of allegiance.

Throughout the process, working with an immigration attorney or reliable immigration services can help ensure all documents are correct, deadlines are met, and the marriage is recognized as genuine. Proper preparation reduces delays and increases the chances of a successful citizenship application.

Countries That Offer Citizenship by Marriage

Marriage to a citizen spouse can open the door to a second nationality in many countries. Citizenship through marriage allows foreign nationals to apply for naturalization after meeting specific residency and relationship requirements. Below, we explore notable countries where tying the knot can lead to a new passport, along with key lifestyle and immigration benefits for spouses.

1. Brazil

View of Sugar Loaf mountain in Rio de Janeiro, Brazil - citizenship through marriage

Foreign spouses can apply for Brazilian citizenship after one year of marriage and residence, with proof of a genuine marital relationship.

Brazil allows dual citizenship for naturalised spouses, and family reunification provides an additional path for long-term residence.

Permanent residents may also naturalize after four years, giving couples multiple routes to secure a Brazilian passport.

2. France

Foreign spouses may apply for French citizenship after three years of marriage, or less if living together in France.

View of famous Eiffel Tower in Paris, France on a rosey-red day - citizenship through marriage

Applicants must demonstrate integration through language skills and partake in a civics test to display their knowledge of French culture and customs.

France also permits citizenship by descent, which can benefit children of French citizens, offering families access to EU rights and travel freedoms.

3. Italy

Foreign spouses can obtain Italian citizenship after two years of marriage if residing in Italy, or three years if living abroad, reduced by half with children.

Lake Como in Italy - citizenship by marriage

Applicants must show a genuine marital relationship and basic integration, often including language proficiency.

Italy also offers the Italy Golden Visa program for investors, providing an alternative path to long-term residence and citizenship.

4. Spain

Foreign spouses can apply for Spanish citizenship after one year of marriage if they meet residency requirements and demonstrate a genuine marital relationship.

Palace in Spain - top citizenship by marriage countries

Integration is typically assessed through language and civics tests. Spain allows dual nationality in certain cases, and family reunification residency provides an additional route for spouses.

In addition to marriage-based naturalization, the country also offers Spanish citizenship by descent, allowing children of Spanish citizens to claim nationality, which can be relevant for families looking to secure long-term rights and EU travel privileges.

5. Portugal

Seaside of Lisbon in Portugal - marriage-based citizenship

Spouses of Portuguese citizens can apply for citizenship after three years of marriage, even if living abroad, provided they demonstrate a genuine marital relationship and basic language skills.

Portugal allows dual nationality and offers multiple pathways for foreigners to settle long-term, including the Portugal Golden Visa and residency by investment programs, which can eventually lead to citizenship.

Portuguese citizenship grants access to EU travel and work rights, as well as long-term stability and flexibility for families.

Discover the quickest paths to a second passport with our expert guide to the fastest citizenship by investment programs.
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6. Greece

Shoreline with a resort in the background in Corfu, Greece - marriage citizenship

Foreign spouses may apply for Greek citizenship after three years of marriage and residence, demonstrating a stable union and integration into society, often through basic language skills.

Greece also offers citizenship through investment programs, such as the Greek Golden Visa, providing alternative pathways for long-term settlement.

Marriage-based citizenship grants access to EU rights, affordable living, and the country’s historic islands and Mediterranean lifestyle.

7. Türkiye

Galata in Istanbul, Turkey - marriage-based citizenship

Spouses of Turkish citizens can apply for citizenship after three years of marriage and residence, with proof of a genuine marital relationship.

No language test is required for marriage-based applicants. Türkiye also provides citizenship by investment, giving couples multiple options for long-term settlement and mobility.

Living in Türkiye offers a culturally rich lifestyle, affordable cost of living, and strategic access between Europe and Asia.

8. Argentina

Waterfall in Argentina - citizenship by marriage countries

Argentina is celebrated for its lively culture, scenic landscapes from Patagonia to the Pampas, and cosmopolitan cities like Buenos Aires. Foreign spouses can obtain citizenship after two years of marriage and residence, provided they can demonstrate a bona fide union and continuous residence.

Argentina allows dual citizenship and offers permanent residency programs for spouses, providing flexible options for those seeking long-term settlement. The country’s affordable lifestyle, vibrant arts scene, and welcoming society make it attractive for marriage-based naturalization.

9. United Kingdom

View of Tower Bridge and River Thames in the United Kingdom from the sky - citizenship through marriage

Spouses of British citizens may apply for citizenship after three years of marriage and permanent residency, demonstrating a genuine relationship.

Applicants typically take the Life in the UK Test, and the UK also allows alternative pathways through skilled worker or investor visas.

Citizenship grants families access to education, healthcare, and travel freedoms across the Commonwealth.

10. Germany

City and bridge over a river in Germany viewed from the sky - citizenship through marriage

Foreign spouses may apply for German citizenship after two to three years of marriage, with at least two years of residence and proof of integration and language proficiency.

Germany also allows citizenship through ancestry or investment programs, giving families multiple routes to long-term residence and EU mobility.

Marriage-based naturalization provides access to Germany’s strong social services, world-class education, and central European location.

11. Canada

green grass field under white clouds across Canadian Rockies - get citizenship by marriage in these countries

Canada offers a welcoming society, natural beauty, and high quality of life. Spouses of Canadian citizens can apply for citizenship after three years of marriage and permanent residence, provided they demonstrate a genuine marital relationship.

Canada also offers Express Entry and Provincial Nominee Programs, creating additional pathways to Canadian permanent residency and citizenship. Canadian citizenship provides travel freedom, access to top healthcare and education, and a stable, multicultural society.

12. The United States

American flag hanging from skyscraper - citizenship by marriage

The United States offers foreign spouses the chance to apply for citizenship after three years of marriage and permanent residency, provided they demonstrate a bona fide marital relationship.

Integration is assessed through language and civics tests, ensuring applicants are familiar with American society.

In addition to marriage-based naturalization, the U.S. provides multiple pathways to citizenship, including family sponsorship, employment-based visas, and investment programs such as the EB5 Visa Immigrant Investor program.

Fastest and Easiest Citizenship by Marriage Options

While marriage provides a route to citizenship, some countries are recognized for offering the shortest and simplest paths:

  • Brazil and Argentina: Offer some of the fastest options in Latin America, with citizenship attainable within 1 to 2 years of marriage.
  • France: Reduced timeline to citizenship of three years for couples living together in France.
  • Canada and the U.S.: Both have streamlined processes for spouses, with naturalization possible after three years of permanent residence, provided all requirements are met.
  • Caribbean nations: Certain countries allow fast-track citizenship after marriage with minimal residency, though often linked to investment.

The easiest routes generally require:

  • A bona fide marriage.
  • Evidence of shared life and financial integration.
  • Compliance with residency, language, and legal requirements.

Understanding which countries give the fastest or easiest citizenship through marriage allows applicants to plan their journey strategically, whether for family unification, mobility, or long-term residency benefits.

Explore Global Citizenship: Key Insights and Options

Navigating the complexities of citizenship, passport acquisition, and immigration can be a daunting task. Whether you’re considering a move for business, personal, or security reasons, understanding your options is crucial. At Global Citizen Solutions, we specialize in providing clear, comprehensive guidance in these areas. Our expertly crafted articles offer deep insights and comparisons to help you make informed decisions.

  • Exploring Citizenship by Investment: For those interested in acquiring citizenship through investment, our guide on citizenship through investment breaks down the process, benefits, and key considerations, helping you understand how this path might suit your personal and financial goals.
  • Comparing Citizenship by Investment Programs: Choosing the right program is vital. Our comprehensive comparison of CBI programs worldwide provides a clear, side-by-side look at what each country offers, aiding you in finding the perfect match for your needs.
  • Top Citizenship by Investment Programs: To further assist your decision-making, we’ve curated a list of the best citizenship by investment programs available. This resource is invaluable for anyone looking to understand which programs offer the most value, security, and benefits.

At Global Citizen Solutions, we’re committed to helping you navigate the path to a new citizenship with ease and confidence. Explore our resources to gain a clearer understanding of your options and embark on your journey towards global citizenship.

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FAQ Questions

Citizenship by marriage is the process through which a foreign national acquires the nationality of their spouse’s country. It often requires proof of a genuine marital union, continuous residency, and compliance with naturalization laws.

Citizenship by marriage allows a foreign spouse to obtain a second nationality more quickly than through standard naturalization.

Benefits typically include the right to live, work, and study in the country, access to social services and healthcare, the ability to travel with a local passport, and, in many cases, the option to retain dual citizenship. It also provides families with long-term stability and legal recognition of their marital relationship.

Timelines vary by country. For example, the U.S. allows citizenship after three years of permanent residence with a U.S. spouse, France after three to four years, and Spain or Brazil may grant it after one to two years.

Some of the fastest options include Brazil, Argentina, Spain, and France (reduced to three years if living together). Processing times can vary depending on documentation and residency verification.

Very few countries grant immediate automatic citizenship. Most require residency, a bona fide marriage, and an application process before citizenship is granted.

Typical documents include a certificate of marriage, proof of permanent residence or spousal visa, evidence of a genuine marriage (joint finances, lease agreements), background checks, and country-specific application forms.

Marriage alone is usually not sufficient. Most countries require continuous residency, to demonstrate good moral character, and to meet legal criteria before granting citizenship is granted.

Yes, in countries that recognize same-sex marriages, foreign spouses are eligible for citizenship through marriage under the same rules as opposite-sex couples.

In most cases, citizenship granted through marriage is permanent, even after divorce. However, if fraud or a sham marriage is discovered, citizenship can be revoked.

Some countries require proof of stable income or financial support, while others have minimal or no financial thresholds. This ensures the foreign spouse will not become dependent on public funds.

Notable European options include France, Italy, Portugal, Spain, the U.K., and Germany. Each has specific residency periods, documentation requirements, and naturalization processes.

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