Does Argentina Allow Dual Citizenship? Rules, Tax and Investor Guide (2026)

Does Argentina allow dual citizenship?

Yes. Argentine law does not require you to renounce your existing nationality when you naturalise as Argentine, so you can hold both passports at the same time. Your country of origin may apply its own rules on dual nationality, so it is worth confirming your home country's position before you proceed.

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Growing Interest in Argentina’s Dual Citizenship Rules

With the introduction of Argentina's Citizenship by Investment program under DNU 366/2025 and Decree 524/2025, international investors are taking a closer look at how Argentina treats dual nationality and tax residency. For answers to the most common investor questions including dual citizenship, family inclusion, and tax implications, see our Complete Argentina CBI FAQ (2026).

For investors seeking flexibility, Argentina stands out for two reasons: it does not require new citizens to give up their existing nationality, and since 6 March 2026 the law has provided that citizenship obtained through the investment program does not, by itself, make you an Argentine tax resident. Together, these make the framework, once operational, attractive for global entrepreneurs, high-net-worth individuals and mobile investors. For a full overview, see our guide to Argentina's Citizenship by Investment program.

Argentina's Position on Dual Nationality

Argentine law does not require a foreign national who naturalises as Argentine to renounce their existing nationality. You can hold an Argentine passport alongside the one you already have, whether you naturalise through the investment program once it opens or through one of the routes compared in our guide to every Argentine citizenship pathway.

Argentina also has dual nationality agreements with Spain and Italy, which settle practical questions such as which country's rules apply while you live in one of them. For nationals of other countries, no agreement is needed: Argentine law itself does not ask you to give anything up. Whether your current country lets you keep its nationality is a separate question, covered below.

Implications for Foreign Investors

For international investors, this legal clarity is significant. Dual citizenship recognition simplifies the process of integrating Argentina’s new investment route with existing passports or citizenships.

It also means that investors who acquire Argentine citizenship through the program, once it is operational, would enjoy the benefits listed below. Note that while Argentina imposes no restrictions on dual citizenship, your home country's rules may vary. Most jurisdictions permit dual nationality, but you should verify your specific situation before applying.

• Uninterrupted global mobility, since they can retain their existing passports.
• Regional mobility: Argentine citizens can apply for residence in other Mercosur states under simplified rules. For naturalised citizens, this right applies after five years of citizenship.
• Family continuity: under the terms officially announced on 2 October 2026, a spouse and children can be included in one application.

Combined with a framework designed to require no prior residency, these features make Argentina's program convenient for global investors once it opens.

Tax Residency and Global Income Rules

Argentina taxes its tax residents on worldwide income and non-residents only on Argentine-source income. Unlike many countries, Argentine law treats citizenship as a starting point for tax residence: Argentine citizens are tax residents by default. The investment route is the exception, as explained below.

How Argentina Defines Tax Residency

Under Article 116 of the Income Tax Law:

• Argentine citizens, native-born or naturalised, are tax residents unless they have lost that status under Article 117.
• Foreign nationals become tax residents on obtaining permanent residence, or after 12 months on temporary residence permits.

A citizen stops being a tax resident only on becoming a permanent resident of another country, or after 12 continuous months abroad (Article 117). Argentina does not use a 183-day test.

Argentina also has an expanding network of double-taxation treaties, reducing exposure for those who do hold business interests within the country.

How Investment-Route Citizens Are Treated

Article 194 of Law 27,802, in force since 6 March 2026, makes an exception for the investment route: a foreign national who naturalises through the program does not become an Argentine tax resident by that naturalisation alone, and is taxed in Argentina only on Argentine-source income. Investment-route citizens are therefore treated differently from other Argentine citizens. If they later move to Argentina, the ordinary residence rules for foreigners apply, and anyone who was already a permanent resident when obtaining citizenship remains a tax resident. Confirm your own position with a qualified tax adviser. For the full analysis, see our Argentina CBI tax residency guide.

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Rights of Dual Citizens

DNU 366/2025 formally amended Argentina's nationality laws to allow direct acquisition of citizenship through investment without prior residency, and Decree 524/2025 built the program's administrative framework on top of that change. DNU 366/2025 was declared invalid by two federal courts in June 2026 and is now before the Supreme Court on the government's appeal. Decree 524/2025 itself remains formally in force. This does not change how dual nationality is treated, which is addressed below.

Dual citizens, whether by birth, descent, or investment, retain the same constitutional rights and responsibilities as any other Argentine national. They can:

• Vote and hold property in Argentina.
• Open local and international bank accounts as Argentine citizens.
• Enjoy consular protection from Argentina abroad.

Holding a second nationality does not limit these rights, nor does it affect inheritance or property ownership under Argentine civil law. A few differences are set by law rather than by dual nationality: some public offices, including the presidency, are reserved for native-born Argentines, and investment-route citizens are treated differently for tax residence, as explained above.

Legal Considerations for Investors

While Argentina's dual-citizenship policy is clear, investors should remain mindful of their home country's stance on multiple citizenships. Some countries, such as China and India, do not allow their nationals to hold a second nationality, while others allow it freely or require you to notify the authorities.

Additionally, global investors should ensure compliance with:

• International tax-reporting requirements (such as FATCA or CRS).
• Source-of-funds documentation to meet Argentina's due-diligence standards.
• Investment verification once Argentina's implementing regulation is published.

Investors preparing in advance by consolidating financial documentation and establishing compliance with global standards will be best positioned for a smooth application once the Argentina Citizenship by Investment program officially opens. For the latest confirmed milestones and pending regulations, visit our Argentina CBI Program Status Tracker.

Treatment of Family Members

Dual citizenship in Argentina extends smoothly to family applications. Under the terms officially announced by the Ministry of Economy on 2 October 2026, a main applicant can include a spouse and children, each with an additional contribution: USD 100,000 for a spouse or an unmarried, childless child aged 18 to 25, and USD 25,000 for each child under 18. These figures are not yet codified in regulation. For totals by family size, see our cost breakdown by family size.

This structure ensures family unity while maintaining Argentina’s constitutional commitment to equal citizenship rights. Once naturalized or approved through investment, dependents will hold the same nationality status and legal protections as the principal investor.

Conclusion: Clarity, Flexibility, and Global Opportunity

Argentina's approach to dual citizenship combines openness with modern investment mobility. By allowing multiple nationalities, and by providing in law that investment-route citizenship does not by itself create tax residence, it provides international investors with flexibility rarely found in other jurisdictions.

Argentina's tax rule for investment-route citizens has been in force since 6 March 2026 under Law 27,802. The program itself is not yet open: its no-residency principle depends on DNU 366/2025, which is before the Supreme Court. Government target: Q4 2026. Not yet open. Slippage remains possible.

As global citizenship options narrow across Europe and the Caribbean, Argentina's combination of legal transparency, economic reform, and global credibility positions it as one of the most promising destinations for forward-looking investors, once the program's legal foundation is settled. To explore the full passport mobility benefits of Argentine citizenship, see our Argentina Passport by Investment guide. For the complete program overview, visit our Argentina Citizenship by Investment 2026 Guide.