Guide
Moving to Belgium from the US: the routes, the paperwork, and what starts on arrival
By Covered Abroad Research Desk · Last verified July 2026
The rule in writing
“Affiliation to a mutualité, or to the CAAMI/HZIV, is compulsory in Belgium. The route in for most new arrivals is the resident category: people entered in the Registre national des personnes physiques. The trigger is commune registration on legal residence of more than three months, not employment. A resident with no Belgian professional income is inside the obligation and pays a personal contribution instead of paying through social contributions.”
Official source: Loi coordonnée du 14 juillet 1994, art. 32, al. 1er, 15°, read with INAMI circular to the mutualités no. 2023/15 of 23 January 2023 and socialsecurity.be — Last verified:
The rule in writing
“Belgium is pay-then-claim. INAMI states that you advance the full amount of the fees and, if everything is in order, the mutualité reimburses you to your bank account. Since 1 September 2025 electronic transmission of the care attestation (eAttest) is obligatory for doctors and dentists, so you keep the provider's receipt rather than posting it; reimbursement remains possible within two years. Tiers payant has been permitted for all care providers since 1 January 2022 but is not obligatory except in named cases.”
Official source: INAMI, "L'attestation électronique ou eAttest" and "Tiers payant" — Last verified:
The rule in writing
“There is no general waiting period for a first-time affiliate in Belgium. Article 121 §2 of the coordinated law permits a stage d'attente of at most six months, but article 130 §1 of the royal decree of 3 July 1996 applies that stage only to re-registration or re-affiliation after a previous registration lapsed for non-compliance with personal contribution obligations. The practical gap for a new arrival is administrative processing through the commune, the Registre national and the fund, not a legislated qualifying period.”
Official source: Loi coordonnée du 14 juillet 1994, art. 121 §2; AR du 3 juillet 1996, art. 130 §§1–2 — Last verified:
The routes, by visa D code
Belgian long-stay entries carry letter-number codes, and knowing yours makes every other page readable. The ones Americans actually use: B14, salaried employment with a work card; B29, the EU Blue Card for highly qualified workers — both running through the single permit, which combines residence and work authorisation in one application. B15, self-employment with a professional card. B17, the rentier route for people living on passive income — Belgium, unlike the Netherlands, publishes a retirement route. B11, B20 and B21, family reunification. B8, study at a higher-education institution.
One structural oddity to absorb early: Belgium splits competences. The Immigration Office handles the residence side federally, while work authorisations and their salary thresholds are set by the Regions — Flanders, Wallonia, Brussels. That is why you will not find a single national salary figure for the single permit on the federal site; we looked, and the absence is real rather than an oversight on our part.
Source: Immigration Office (dofi.ibz.be), national entries (visa D) FAQ, read 20 August 2026.
The paperwork Americans specifically face
The Belgian Embassy's US checklists are precise in ways that reward reading before you book anything. From the retirement-route checklist, the items that generalise: the application form needs a notarized signature when mailed. Your passport must be "not older than 10 years" and valid at least 15 months from your date of departure from Belgium — not from arrival — with two empty side-by-side pages. Photos must be under six months old.
The document that takes longest: a nationwide FBI criminal history record, in a sealed envelope, not older than six months. Order it early and do not open it. A medical certificate on the official model needs notarising and apostilling if your own physician is not embassy-affiliated. And Belgium asks for something few countries do — letters of reference from Belgian citizens or residents confirming your ties, plus a personal cover letter explaining why Belgium.
Proof of funds is broad by design: "may include Social Security benefits, bank statements covering at least the past 6 months, income from real estate properties."
Source: Belgian Embassy in the United States, D-visa retirement checklist, read 20 August 2026.
60-second check
Not sure the policy you have meets your destination's written rule? Run it through the policy check now, before you build the rest of the file around it.
Check my policyIf family is the route: two figures and a transition
Family reunification runs on a means test — "stable, regular and adequate means of subsistence" — and Belgium is mid-transition between two versions of it, so which figure applies depends on when the application was lodged and the sponsor's prior status.
Old provisions: €2,173.88 net per month (indexed 1 March 2026) — for applications lodged before 18 August 2025, and for later ones where the sponsor was already authorised to reside over three months before that date. New provisions under the Law of 18 July 2025: €2,408.79 net per month (indexed 1 April 2026), plus 10% per additional dependent family member — for other applications, and for everything from 18 August 2027. The office's own worked example: a sponsor joining a partner and two children needs 110% plus 20% of the base.
On insurance, the family route is unusually concrete: the sponsor proves "health insurance that covers all risks in Belgium" for the family, either via a certificate that the fund will add the family member on arrival, or via travel medical insurance at a minimum €30,000 for at least three months — and the travel-policy option becomes mandatory in named cases, including registered partnerships and children over 25.
Source: Immigration Office (dofi.ibz.be), stable, regular and adequate means of subsistence, read 20 August 2026.
Source: Immigration Office (dofi.ibz.be), insurance, read 20 August 2026.
What starts the day you register at the commune
Whatever route brought you in, Belgian domestic law takes over at the same point: registration at your commune on legal residence of more than three months, which puts you in the Registre national. From there, affiliation to a mutualité — or to the public CAAMI — is compulsory. Employment is not the trigger; registration is. A non-working spouse, a rentier, a student resident past three months: all inside.
Three system facts to arrive knowing. There is no waiting period for a first-time affiliate — the six-month qualifying stage in the statute applies only to re-registration after a lapse for non-payment, so do not let anyone sell you bridge cover against a wait that does not exist. Belgium is pay-then-claim: you generally advance the doctor's full fee and the mutualité reimburses your Belgian bank account, so open the account and hand the fund your number early. And what you keep paying afterwards is the ticket modérateur — the patient's share — with an annual ceiling, the maximum à facturer, that caps a bad year.
The gap that private cover honestly fills is the administrative one: between arriving and your fund opening your file, a chain of commune, register, residence document and affiliation that no official page puts a duration on. That gap is real; the mythical six-month wait is not.
Source: Immigration Office (dofi.ibz.be), national entries (visa D) FAQ, read 20 August 2026.