Combining a change of address

You do indeed need to report a change of address to your social secretariat. Such a change of address costs €90.50 (exempted from VAT).

But it's a good idea to try to combine it with other changes, because the cost of €90.50 immediately covers all the changes you would make. So if you create the combination of a change of address and an adjustment to your permitted activities (the Nacebel codes), you will still end up with a total cost of €90.50.