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Pathway

Belgian Citizenship by Marriage Declaration

Belgium Citizenship
Pathway overview

At a glance

Belgium's marriage nationality declaration is for spouses of Belgian citizens who have built a life in Belgium. It generally requires five years of legal residence, three years living together in Belgium with the Belgian spouse, language ability, and social-integration proof.

Type
Citizenship through marriage
Relationship
Legally married to a Belgian citizen
Residence
Usually 5 years of legal residence in Belgium and 3 years living together there after marriage
Other requirements
Basic language ability, social-integration proof, and unlimited residence when filing
What it gives
When the declaration is accepted and entered in the records, the applicant becomes Belgian.
Main limit
This is not citizenship on the wedding day, a three-year marriage-only rule, or a route that can normally be completed while the couple lives abroad.

Summary

Marriage to a Belgian does not automatically make a spouse Belgian. It creates a specific five-year residence-based declaration route for an adult who already lives legally in Belgium.

The official FPS Justice summary requires five years of legal residence, knowledge of one of Belgium's three national languages, marriage to a Belgian with at least three years of living together in Belgium, and proof of social integration. The same category also covers the parent or adoptive parent of a Belgian child under 18, which is explained separately in the parent-of-a-Belgian-child resource.

At filing, the applicant must have their main residence in Belgium and an unlimited right of residence. During the required period immediately before filing, the residence must be based on a right to stay for more than three months. The commune checks the residence record and the current card; a marriage certificate does not replace those requirements.

The federal nationality acquisition fee is currently shown by FPS Justice as €1,000, paid before filing. Because the amount is legally indexed, applicants should confirm the payable figure with FPS Finance or the commune immediately before payment.

Pathway fit check

Eligibility

The marriage category generally requires:

FPS Justice lists the social-integration routes for this category as a qualifying Belgian diploma or certificate, an accepted integration course, or at least 400 hours of recognized vocational training combined with at least 234 days of employee or public-service work in the last five years, or at least three quarters of Belgian social-security contributions as a principally self-employed person.

Proving social integration also proves the language condition under the official guidance. The commune should confirm exactly which document is accepted in the applicant's region and situation.

What This Route Allows

When the declaration is accepted and entered in the records, the applicant becomes Belgian. The person can obtain Belgian citizen identity and passport documents, live and work in Belgium without an immigration permit, and exercise EU citizenship rights.

Belgium permits multiple nationality, but applicants should separately check whether their existing country treats voluntary acquisition of Belgian nationality as a loss event.

What This Route Is Not

This is not citizenship on the wedding day, a three-year marriage-only rule, or a route that can normally be completed while the couple lives abroad. The three years of living together is an additional condition within a five-year legal-residence route in Belgium.

It is not the same as residence through family reunification. A spouse who has not yet built the required residence first needs the appropriate family residence status. Nor does marriage waive the language and social-integration evidence.

Next Steps

  1. Ask the commune for a review of the five-year legal-residence period and confirmation that the current right of residence is unlimited.
  2. Obtain a Belgian marriage record or complete any required recognition or transcription of a foreign marriage.
  3. Request commune records showing at least three years of living together in Belgium as spouses.
  4. Choose the strongest accepted integration proof and confirm that it also establishes language knowledge in the file.
  5. Gather the civil-status, residence, and work or training records requested by the commune; obtain legalization and translations only as instructed.
  6. Confirm the current indexed registration fee and pay it through the official FPS Finance method before filing.
  7. Make the declaration before the civil registrar in the commune of main residence. The commune sends a complete file to the royal prosecutor, Immigration Office, and State Security; the prosecutor has four months from the acknowledgment of a complete file to object.
Compare your options

Other routes in Belgium.

Sources