Relocating changes more than your address — your BSN, box 3 tax treatment, and sometimes your existing broker's willingness to keep you as a customer all come into play. Here's what to check first.
Do you actually need a new broker?
Not always. Some brokers let non-residents keep an existing account after moving, others require a BSN or Dutch address before you can open or keep one — this depends on the broker, not just on Dutch residency rules.
What do you need to open a Dutch broker account?
Typically: a BSN (citizen service number), a Dutch or EU bank account for transfers, and a valid ID or passport. Some brokers will open an account before your BSN is issued; most require it upfront.
How does box 3 tax affect my investments after moving?
Once you're a Dutch tax resident, investment assets are generally taxed under box 3 (wealth tax) rather than as capital gains on each sale — a genuinely different system from most countries. Get this confirmed for your situation before you move, not after.
Is an English-language broker enough in the Netherlands?
Most brokers operating in the Netherlands, including the well-known Dutch ones, offer a fully English interface and English-language support — this is generally less of an issue than in some other EU countries.
