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Dual Citizenship Allowed Countries: Keep or Renounce Your Passport?

citizenships.legal · November 2, 2026

Some countries welcome dual citizenship while others require you to choose. Understanding these rules is essential before pursuing a second passport.

When you're considering a second citizenship, one of the most important questions is whether you'll need to give up your current passport. The answer depends on two sets of rules: those of the country you're from, and those of the country where you're seeking citizenship.

At citizenships.legal, our licensed partner lawyers regularly help clients navigate these complexities. Let's explore which countries allow dual citizenship and which require you to make a difficult choice.

Countries That Generally Allow Dual Citizenship

Many countries have embraced dual citizenship in recent years, recognizing that their citizens often have international lives and connections.

Europe

  • Portugal: Allows dual citizenship without restrictions
  • Ireland: Permits multiple citizenships
  • Malta: Accepts dual citizenship
  • Italy: Generally allows dual nationality
  • France: Permits dual citizenship
  • United Kingdom: Allows multiple citizenships
  • Greece: Permits dual nationality
  • Sweden: Changed its laws in 2001 to allow dual citizenship
  • Switzerland: Generally permits dual citizenship

Americas

  • United States: Allows dual citizenship, though the oath of citizenship includes language about renouncing other allegiances
  • Canada: Permits multiple citizenships
  • Mexico: Allows dual nationality
  • Brazil: Generally permits dual citizenship
  • Barbados: Allows dual citizenship
  • Dominica: Permits multiple citizenships
  • St. Kitts and Nevis: Allows dual citizenship
  • Antigua and Barbuda: Permits dual nationality

Other Regions

  • Australia: Allows dual citizenship
  • New Zealand: Permits multiple citizenships
  • Turkey: Generally allows dual nationality
  • South Africa: Permits dual citizenship with prior approval
  • Israel: Allows dual citizenship

Countries That Restrict or Prohibit Dual Citizenship

Several countries maintain restrictions on holding multiple passports, though the specific rules and enforcement vary significantly.

Countries with General Prohibitions

  • China: Does not recognize dual nationality for Chinese citizens
  • India: Generally does not allow dual citizenship, though it offers Overseas Citizen of India (OCI) status
  • Japan: Requires citizens to choose one nationality
  • Singapore: Generally does not permit dual citizenship for adults
  • United Arab Emirates: Traditionally did not allow dual citizenship, though recent changes permit it in specific cases
  • Indonesia: Does not recognize dual citizenship for adults
  • Malaysia: Generally does not allow dual citizenship
  • Netherlands: Has restrictions, with exceptions for certain situations
  • Austria: Generally prohibits dual citizenship with narrow exceptions
  • Germany: Restricts dual citizenship, with exceptions for EU/Swiss citizens and other specific cases

Important Nuances

The reality is more complex than simple "yes" or "no" lists suggest. Many countries that "don't allow" dual citizenship:

  • May not actively enforce the rule
  • Have exceptions for certain categories of citizens
  • Have different rules for citizenship by birth versus naturalization
  • Have changed their policies over time

Similarly, countries that "allow" dual citizenship may have specific requirements or notifications you need to complete.

What This Means for Your Citizenship Journey

When you're pursuing citizenship by investment, ancestry, naturalization, or any other route, you need to understand both sides of the equation.

Check Your Current Country's Rules

Even if your target country allows dual citizenship, your home country may not. Some countries will automatically revoke your citizenship if you voluntarily acquire another. Others may require you to notify them or seek permission.

Check Your Target Country's Rules

The country where you're seeking citizenship will have its own requirements. Some citizenship by investment programs explicitly allow dual citizenship as a feature, while traditional naturalization processes may have different requirements.

Consider Long-Term Implications

Beyond the legal permission, consider practical factors:

  • Tax obligations in multiple countries
  • Military service requirements
  • Voting rights and civic duties
  • Travel complications if countries have diplomatic tensions
  • Estate planning and inheritance laws
  • Banking and financial reporting requirements

How We Help Navigate These Complexities

At citizenships.legal, we manage a network of licensed partner lawyers who handle the legal aspects of residency and citizenship applications. These professionals are familiar with the dual citizenship rules of both your home country and your target country.

Our partner lawyers can:

  • Research the specific rules that apply to your situation
  • Identify any notification requirements or approval processes
  • Advise on the legal implications of holding multiple citizenships
  • Prepare and submit applications in compliance with all relevant laws
  • Coordinate with authorities when required

Remember, we don't make the final decisions—governments do. But we can help ensure your application is properly prepared and that you understand all the implications of your citizenship choices.

The Bottom Line

Dual citizenship opens doors, but the rules vary dramatically by country. Some nations welcome multiple nationalities, while others require you to choose. Before pursuing a second passport, understand the requirements on both sides.

Ready to explore your citizenship options? Browse our programs to find the right path for your situation, with guidance from our licensed partner lawyers every step of the way.

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