🇧🇪 Settling in in Belgium

Settling on the Belgian side: communal registration is compulsory and gates the electronic ID card; everything else follows from it.

The steps, in order

01
Registration in the population register
You declare yourself to the communal administration after moving in. A neighbourhood officer comes to confirm actual residence, then the commune issues the electronic ID card — the key to every Belgian procedure.
Deadline: Within days of moving inWho you deal with: Administration communale
02
Mutuelle and healthcare coordination
Registration with the CCSS by the employer, CNS cover, then enrolment with a Belgian mutuelle using the European coordination document so you can be treated in Belgium.
Who you deal with: CCSS · CNS · mutuelle
03
Tax and communal surcharges
Salary taxed in Luxembourg, exempt in Belgium with a progression reserve. Local quirk: Belgian communes levy additional percentages on personal income tax — the exemption largely neutralises them, but the communal rate is worth a look before choosing where to live.
Who you deal with: SPF Finances

The full guide →Source

Procedures and deadlines change, and edge cases (third-country nationals, family reunification, self-employment) fall outside this outline. Check with the relevant administration before committing.

Verified on 2026-08-17

The communes of this country on the site

Photo: Jean-Pol GRANDMONT · CC BY 3.0

🇧🇪 Arlon

Luxembourg Province (Belgium) · 31,165 inh.

4.6

County town of Belgium's Luxembourg province and the main Belgian rear base: direct trains, the E411/A6, respected schools and a still-reasonable housing market.

Average rent, 70 m²: 1,050 € / month
Commute to Luxembourg City: 46 minby car (peak)38 minby train