Nationality of Belgium: all obtaining pathways
Belgian naturalization requires five years of legal residence, demonstrable social and economic integration and knowledge of at least one national language at A2 level. Marriage or a civil union with a Belgian allows the declaration of nationality, and ius soli covers certain people born in Belgian territory.
1Naturalization by residence
Naturalization by residence
Requirements
- Uninterrupted legal residence of 5 years in Belgium (2 for refugees/stateless persons)
- Participation in economic life: personal contribution to the social security system over 5 years (12 months in 5 years, or 46 working days)
- Command of one of the national languages (oral level A2) and knowledge of citizens' rights and duties
- No criminal convictions (background check)
- Application to the Federal Public Service Justice
Documentation
- Valid passport or identity document
- Residence certificate from the municipality
- Proof of language proficiency (A2 certificate)
- Criminal record certificate
- Proof of social or economic integration
- Nationality declaration form
2Nationality declaration (through marriage or union)
Nationality declaration (through marriage or union)
Requirements
- 5 years of legal residence in Belgium
- Marital cohabitation or legal cohabitation with a Belgian citizen for 3 years IN Belgium (or Belgian minor child)
- Oral A2 language proficiency + knowledge of rights and duties
- Not subject to a removal order
- Application by declaration before the civil registrar of the commune
Documentation
- Marriage or civil union certificate
- Proof of effective cohabitation (municipal register)
- Residence certificate
- A2 language proficiency certificate
- Criminal record certificate
3Nationality by descent (ius sanguinis)
Nationality by descent (ius sanguinis)
Requirements
- At least one parent is a Belgian citizen at the time of birth
- Belgian nationality is transmitted with no generational limit
- For those born abroad: registration at the Belgian consulate before age 18 to retain it
- If the Belgian parent was born abroad and has lived more than 5 years outside Belgium: the child must be registered before age 5
Documentation
- Birth certificate of the Belgian parent
- Birth certificate of the applicant
- Belgian civil registry documents
- Where applicable, proof of consular registration
4Nationality by birth in the territory (ius soli)
Nationality by birth in the territory (ius soli)
Requirements
- Born in Belgium to foreign parents
- Legal and uninterrupted residence in Belgium since birth
- At least one parent legally resident in Belgium for at least 5 years before the birth
- Application before age 12 or automatic at age 18 if the conditions are met
Documentation
- Birth certificate in Belgium
- Proof of the parents' residence (5 years minimum)
- Residence certificate of the minor
- Parents' passports
Frequently asked questions about the nationality of Belgium
How many years of residence does Belgium require to naturalize?
According to the main pathway of Belgium (Naturalization by residence), the term is 5 years of legal residence in Belgium (2 years for refugees or stateless persons). The complete details of requirements and exceptions appear in the fact sheet.
Can the nationality of Belgium be obtained by marriage?
Yes, through the Nationality declaration pathway (5 years of legal residence + 3 years of marital cohabitation in Belgium). The complete requirements appear in the fact sheet of that pathway.
What documentation does naturalization in Belgium require?
The Naturalization by residence pathway requires: Valid passport or identity document; Residence certificate from the municipality; Proof of language proficiency (A2 certificate); Criminal record certificate; Proof of social or economic integration; among 1 more documents.
What pathways exist to obtain the nationality of Belgium?
Belgium provides 4 pathways: Naturalization by residence, Nationality declaration, Nationality by descent, Nationality by birth in the territory.
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