🇧🇪 Belgium · Naturalisation
Citizenship by Declaration — Long Residence 10y (Art. 12bis § 1, 5°) — requirements, costs & how to apply
Who is eligible
| Work experience | 5+ years |
| Language level | A2 |
| Health insurance | Required (valid in-country) |
| Age range | 18–None |
Costs
| Application / consular fee | €150 |
Duration & renewal
Citizenship possible after 10 years.
Who can apply
Open to all nationalities.
How to apply
- Confirm you meet the eligibility above.
- Gather documents and apply via the official portal: https://www.ejustice.just.fgov.be/cgi_loi/change_lg.pl?language=fr&la=F&cn=1984062835&table_name=loi.
- Typical processing: ~120 days.
Frequently asked
Do I need health insurance?
Yes — valid health insurance in the country is required.
Sources & verification
Every figure on this page is taken from an official government source and dated. Nothing is inferred.
Work experience
Language level
Health insurance
“les étrangers doivent prouver qu'ils ont souscrit une assurance maladie.”
Age range
“l'étranger qui a atteint l'âge de dix-huit ans.”
Application fee
Years to citizenship
Open to all nationalities
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Informational only, not legal or immigration advice. Requirements change — always confirm on the official government source linked above before applying. Last verified 2026-06-08.