Registration, banking and utilities in Brussels

Registering with the commune

You present yourself at the population service (service population / dienst bevolking) of your commune within days of arriving, with your passport, your lease and passport photographs. You are entered provisionally, the local police officer then visits the address to confirm residence, and only after that are you entered on the register and issued an identity document. Put your name on the letterbox the day you move in, because that is literally what the officer looks for.

• Bring: passport, lease, passport photographs, and the fee in whatever form the commune accepts.
• Name on the letterbox and doorbell before the police visit, not after.
• The commune is the unit of administration, not Brussels — go to yours, in its language.

The identity card and digital identity

Once registered you receive a national register number (numéro national / rijksregisternummer), which is the identifier every Belgian system uses, and an electronic identity card or residence card with PIN and PUK codes collected in person. That card, or the itsme app tied to it, is how you log in to tax, banking, health and municipal services. Losing the PIN letter means another appointment, so keep it.

• The eID card plus a card reader, or itsme, unlocks almost all online administration.
• The numéro national is asked for constantly — memorise or store it.
• Address changes are done at the commune and trigger another police check.

Health insurance, banking and utilities

Joining a health insurance fund (mutuelle / ziekenfonds) is compulsory rather than optional, and it is a choice of provider, not of whether. A Belgian bank account is straightforward once you have the national number, and Belgian life runs heavily on domiciliation, the direct-debit arrangement most utilities expect. For gas and electricity you sign your own supply contract and complete a transfer document with meter readings on the day you take the keys — the single cheapest habit that stops you paying for the previous occupant's consumption.

• Mutuelle affiliation is compulsory for residents; providers differ on extras, not on the core.
• Energy suppliers are switchable and prices vary — comparison is worthwhile annually.
• Water is billed by the regional operator and often stays in the landlord's name; check which.

Residence status

EU citizens receive an Annex 19 when they register, bring proof of work, study or means within three months, and then collect an electronic E card valid for five years. Non-EU employees come on the single permit, which the employer applies for: in Brussels the regional authority, Brussels Economy and Employment, decides on the work side and the federal Immigration Office on residence, and the employee then registers at the commune and receives an A card. Everyone, EU or not, still registers with the commune and still gets the police visit, and communes differ in how quickly they process.

• Brussels single-permit salary floors for 2026, unchanged from 2025: €3,703.44 gross a month for highly qualified workers, €4,748 for the EU Blue Card and €6,647.20 for executives.
• EU staff and employees of certain international organisations follow a separate protocol route through the Foreign Affairs ministry rather than the commune's ordinary cards.
• Thresholds and document lists are revised each year; confirm with the Immigration Office or Brussels Economy and Employment before relying on a step.

In order

1. 1Sign the lease and put your name on the letterbox immediately.
2. 2Book or attend the commune's population service within eight days.
3. 3Be reachable at the address for the neighbourhood police visit.
4. 4Collect the identity or residence card and its PIN codes.
5. 5Join a mutuelle and open a Belgian bank account.
6. 6Set up itsme, then put utilities in your name with a dated meter reading.