A Union citizen who stays in Belgium for more than three months and does not work needs sufficient means and health insurance covering all risks in Belgium; employees and self-employed people do not need this proof. Those who stay longer than three months can be required to register; the period may not be shorter than three months from arrival, and in Belgium registration runs through the municipality.
A Brussels municipality names the EHIC, private insurance, the S1, membership of a Belgian mutualité or a certificate of insurability as proof of health insurance. Whether your existing policy counts as insurance for all risks in Belgium is decided by the municipality; clarify this with it before the move.
For registration as a resident, the insurance provider accepts, for Union citizens, the electronic EU card (“Enregistrement, Art. 8 Directive 2004/38/EC”) or the provisional document Annex 8ter as proof of residence. How you arrange the order of registration and affiliation with the mutualité, you clarify in advance with the municipality and the mutualité.
| Situation | What the sources say | What you clarify |
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| Employees and self-employed people | The municipality’s leaflet names proof of employment or self-employment for them, and proof of health insurance only for students and people with sufficient means. | Ask your municipality which documents it requires for your situation. |
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| Without gainful activity | Anyone who does not work needs health insurance covering all risks in Belgium for a stay of more than three months. | Clarify which insurance your municipality accepts as proof. |
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