Acte de mariage
Acte de mariage délivré par l'officier de l'état civil belge (BAEC). Pour le 12bis §1, 3°, sert à établir le lien matrimonial avec un conjoint belge. Document fédéral accessible via plusieurs canaux.
Applies to: 12bis §1, 3° spouse-of-Belgian declarants whose marriage is registered in the Belgian BAEC
Last verified: 2026-05-12
Sources
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Brussels Tier-1 quicklink · priority 90
Regions: brussels
Authentication: csam (itsme, eid, mygov.be, smart-id, security-code, eidas)
Kind: deeplink-after-auth · Delivery: sync-pdf-download
Primary actor: both
Handoff: auth-wall
Agent does: I'll send you to the Brussels Irisbox quicklink for the marriage certificate. The link asks Irisbox to generate your marriage act as a PDF as soon as you sign in.
You do: Sign in with itsme or your eID. Irisbox will generate your marriage act and download it. Save the PDF to your Be Civic folder.
To resume: Tell me 'got it' when the PDF has downloaded. I'll mark the marriage certificate as obtained and move on.
The steps after authentication / handoff are described from documentation, not yet confirmed by a real Be Civic user. If reality differs, please tell us so we can fix the entry.
Each use generates a real document delivery — only click when you actually need the document.
Try thisNotes: Audited Tier-1; not probed per §24.9 invariant 3. URL pattern from quicklinks-baec.json (MARRIAGE_CERTIFICATE).
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Wallonia commune-services page · priority 65
Regions: wallonia
Kind: sitemap-page-fetch · Delivery: informational-routing
Try thisPrimary actor: agent
Agent does: I'll read the Wallonia civil-status extracts page to confirm the commune-routing instructions and quote them back to you.
You do: None — the agent handles this source fully with no customer action required.
To resume: After reading the page I'll recommend the federal Just-on-Web handoff next, or the offline commune visit if neither works.
Notes: Probed 2026-05-12: HTTP 200, title 'Demander un extrait/copie d'un acte d'état civil' matched. Wallonia page routes citizens to commune of marriage.
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Federal authenticated portal · priority 60
Regions: federal
Authentication: csam (itsme, eid, mygov.be, smart-id)
Kind: deeplink-to-auth-wall · Delivery: user-driven-after-auth
Primary actor: user
Handoff: full-takeover
Agent does: I'll point you to Just-on-Web's civil-records extracts surface — the federal equivalent of Brussels Irisbox for non-Brussels residents. Sign in with CSAM, pick 'Acte de mariage' / 'Huwelijksakte', and download the PDF.
You do: Authenticate via CSAM. Choose the marriage-certificate extract; the portal will deliver a PDF. Save it to your Be Civic folder.
To resume: Tell me you have the PDF. If Just-on-Web does not list the certificate (it sometimes happens for older marriages), the offline route at your commune of marriage is the fallback.
The steps after authentication / handoff are described from documentation, not yet confirmed by a real Be Civic user. If reality differs, please tell us so we can fix the entry.
Try thisNotes: Federal channel covering residents outside Brussels. URL listed in federal-catalog.json (justonweb-extracts).
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Offline commune visitfallback only · priority 10
Regions: brussels, wallonia, flanders, federal
Kind: commune-visit · Desk: Service État civil / Dienst Burgerlijke Stand · Delivery: in-person-or-postal
Primary actor: user
Handoff: physical-presence
Agent does: I'll prepare what you need to ask for: an extract or copy of your acte de mariage from the commune where the marriage was registered (the lieu de mariage, not necessarily your commune of residence). Bring your eID; small fee (often €0–€10).
You do: Go to the Service État civil (or Dienst Burgerlijke Stand) of the commune where your marriage was registered. Ask for an 'extrait' or 'copie intégrale' of the acte de mariage. Some communes accept postal or email requests — check first.
To resume: Bring the document back and confirm receipt. If the marriage was registered abroad and is not in the Belgian BAEC, the certification-of-foreign-documents flow applies instead — flag this and I'll route you to the apostille / consular-legalisation sub-skills.
The steps after authentication / handoff are described from documentation, not yet confirmed by a real Be Civic user. If reality differs, please tell us so we can fix the entry.
Notes: Always-available fallback per graceful-degradation. Note: Belgian marriages from abroad may not be in BAEC; foreign-document certification flow applies in that case.