Migration between Iceland & Belgium. Residence permit. Citizens of the European Union and the EEA planning to stay longer than three months in Iceland, need a residence permit. EU and EEA citizens do not need a special work permit, only a residence permit, when coming to Iceland.
You have to apply for (kennitala), an Icelandic ID number. This ID number is necessary for various practical matters such as opening a bank account, getting a tax card, etc.
In Belgium you have to bring a national passport ID which is still validfor the
upcoming 12 months to get a visa.