🇧🇪 Belgium · Spouse Partner
Citizenship by Declaration — Belgian Spouse/Parent of Belgian Child (Art. 12bis § 1, 3°) — requirements, costs & how to apply
Who is eligible
| Minimum monthly income | €1,500 |
| Minimum annual salary | €1,500 |
| Proof of savings | €2,000 |
| Work experience | 5+ years |
| Language level | A2 |
| Marriage to citizen | Required (3+ yrs) |
| Age range | 18–50 |
Costs
| Application / consular fee | €150 |
Duration & renewal
Initial stay: 60 months. Citizenship possible after 5 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: ~30 days.
Frequently asked
How much income do I need?
You must show €1,500.
Sources & verification
Every figure on this page is taken from an official government source and dated. Nothing is inferred.
“3° l'étranger qui : a) a atteint l'âge de dix-huit ans; ... d) et est marié avec une personne de nationalité belge, si les époux ont vécu ensemble en Belgique pendant au moins trois ans [Code de la nationalité belge, Art. 12bis § 1er, 3°]”
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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.