What’s the Benefit of Dual Citizenship Countries?

Out of 195 countries worldwide, the majority allow their citizens to enjoy dual citizenship. We’ll discuss dual citizenship, its advantages, and which countries allow it. If you’re interested in becoming one of the millions of people around the world who benefit from countries that allow dual citizenship, Premier Consultancy Thailand can help you gain citizenship in the country of your choice.    

Understanding Dual Citizenship

The legal definition of dual citizenship is having simultaneous nationality in two sovereign states. However, in practice, the two states need to have established an agreement that defines the terms of dual citizenship as it applies to citizens of both countries. 

Qualifications of Dual Citizenship

There are typically five qualifying factors that can lead to dual citizenship, which include:

1. Birth

Suppose a citizen was born in one country but whose parents were citizens of another, and they were declared citizens of their parents’ homeland. If the two countries have an agreement in place, the citizen can also qualify for citizenship in their birth country.  

2. Descent

This qualification allows people to claim citizenship in a country if they can prove they are blood relatives of a specific citizen or family based on ancestry. The qualification is based on the principle of jus sanguinis, a Latin term that means “right of blood.”

3. Naturalisation 

Many countries’ immigration policies have naturalisation processes whereby foreign nationals can study and take exams about the desired country. Passing the exams guarantees citizenship. 

4. Marriage

It’s common for a spouse to claim their partner’s citizenship. It can make life easier to be a citizen of the country where both spouses live. 

5. Investment

Nowadays, Citizenship by Investment (CBI) programmes are becoming increasingly popular and are being adopted by a growing number of countries. The popularity is expanding the opportunities for more people to become dual citizens of their birth country and a country offering significant financial benefits

Benefits of Dual Citizenship

The benefits of having a second passport include:

Enhanced Travel Freedom

Having visa-free or visa-on-arrival access to more countries can expand business opportunities.

Political & Economic Security

Families with other options for where they can live and raise their children can enjoy a greater sense of security in times of financial or political instability. 

Wealth Management and Taxation

Countries with a dual citizenship agreement often include language in the document that prevents double taxation of dual citizens and allows citizens to transfer funds freely.  

Education & Healthcare Access

Dual citizenship countries offer a greater variety of schools and healthcare providers to citizens. They can use the best services in each country.

List of Countries Allowing Dual Citizenship 

Below is a comprehensive directory of dual citizenship countries. It’s important to note that whilst these countries permit multiple nationalities, many impose specific requirements or limitations. These restrictions may relate to naturalisation procedures, residency obligations, or military service commitments.

Countries with Unrestricted Dual Citizenship

Countries with Conditional or Restricted Dual Citizenship

Contact Premier Consultancy Thailand

Premier Consultancy Thailand can provide eligibility and risk assessment data for the countries under consideration. We can compare qualification options and recommend the right path to take.

We can also help structure your taxes and coordinate your global assets with your new nationality. We offer end-to-end support to make applying for dual citizenship simple and easy to understand.  

Contact Premier Consultancy for expert, personalised advice on how to secure dual citizenship safely and efficiently.

References:

• What is dual and second Citizenship? – Retrieved September 3, 2025, from: https://immigrantinvest.com/blog/countries-that-allow-dual-citizenship/
• Dual Citizenship Countries? – Retrieved September 3, 2025, from: https://www.henleyglobal.com/citizenship-investment/dual-citizenship 
• Citizenship by Descent – Retrieved September 3, 2025, from: https://globalresidenceindex.com/citizenship-by-descent/#:~:text=Historical%20Background,of%20their%20place%20of%20birth.