When you are seeking a dual citizenship, you need to get apostilles on your vital records including Birth Certificates, marriage certificates, and death certificates.

More than 75% of the world’s nations permit dual or multiple citizenship, though the specific rules, conditions, and pathways vary significantly by jurisdiction.  

Generally Permitted (Few or No Restrictions) These countries allow their citizens to hold foreign nationality and permit foreign nationals to naturalize without renouncing their original citizenship:

• Americas: United States, Canada, Mexico, Brazil, Argentina, Colombia, Chile, Peru  

• Europe: United Kingdom, France, Italy, Ireland, Portugal, Germany, Belgium, Switzerland, Sweden, Greece, Finland  

• Oceania: Australia, New Zealand, Fiji, Vanuatu  

• Africa & Middle East: South Africa (requires prior permission to retain), Israel, Ghana, Nigeria, Kenya, Lebanon  

Conditionally Permitted (Specific Circumstances) These countries allow dual citizenship only under specific exemptions, such as ancestral descent, marriage, bilateral treaties, or special agreements:

• Spain: Permitted primarily for citizens of Latin American countries, Andorra, the Philippines, Equatorial Guinea, Portugal, and France; others must generally renounce.  

• South Korea: Permitted for dual nationals by birth (who pledge non-exercise of foreign nationality in Korea), overseas Koreans aged 65+, or high-talent naturalizations.  

• Netherlands: Generally requires renouncing existing nationality, except for spouses of Dutch citizens or refugees.  

• Philippines: Permitted for natural-born Filipinos who reacquire citizenship under the Dual Citizenship Act (RA 9225).  

• Croatia & Bulgaria: Permitted for citizens by descent/origin, but strictly conditional for standard naturalization.  

Strictly Prohibited or Highly Restricted These countries generally require total renunciation of other citizenships and revoke native citizenship if a foreign nationality is voluntarily acquired:

• Asia: China, Japan, Singapore, India (offers OCI status instead), Indonesia, Malaysia  

• Europe & Others: Austria (rare exceptions), Ukraine, Monaco, Saudi Arabia, UAE (barring rare executive decrees)