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Coming to the Netherlands for work, study, or a project and (probably) staying under 4 months? Then the question “do I need to register?” makes perfect sense—especially because you often need a BSN for salary, healthcare, and tax matters.

Good news: you can usually get a BSN even for a short stay. The key is choosing the right path: BRP (resident) or RNI (non-resident) registration.

1) BRP vs RNI: what’s the difference?

The BRP (Personal Records Database) is the Dutch population register. You are registered either as:

Resident (BRP registration in the municipality where you live)

This applies if you stay 4 months or longer. You register as a resident with the municipality where you live, typically shortly after arrival.

Non-resident (RNI registration)

If you stay less than 4 months, you can register as a non-resident in the RNI (Non-residents Records Database). You use an address abroad.

Important: RNI registration is often not mandatory, but it is usually required if you need a BSN.

2) When do you need a BSN?

Common reasons include:

• payroll and employment administration
• healthcare matters (e.g., certain applications or processes)
• taxes
• other government services (often including DigiD-related processes)

If your employer or HR asks for a BSN and you’re staying under 4 months, RNI is typically the fastest route.

3) How to get a BSN for stays under 4 months (RNI)

In practice, it works like this:

Step 1 — Choose an RNI desk

You can register at an RNI municipality (there are multiple desks). You can generally choose which desk to use.

Step 2 — Register in person

RNI registration is generally done in person. Bring a valid ID document (passport/ID) and your address abroad.

Step 3 — Receive your BSN

After registration you receive a BSN, either immediately or via a confirmation/letter depending on the municipality.

Tip: do this early. A BSN is often the key that unlocks everything else (payroll, admin, certain services).

4) Important detail (2026): EU/EEA/Swiss vs non-EU passports

For some procedures, your passport type can affect which desks or steps apply. Always check the current rules for your situation before you go.

Practical takeaway:

• EU/EEA/Swiss: you can often register at multiple RNI desks.
• Non-EU passport holders: check the current desk options and requirements for your situation.

5) What if your stay becomes longer than 4 months?

This is common for project work or while searching for long-term housing.

If you end up staying 4 months or longer, you typically move to BRP resident registration in the municipality where you live. That is a different step from RNI.

Pro tip: if you’re unsure today, use a monthly stay as a practical base and switch your registration approach once your longer-term plan is confirmed.

6) Quick checklist: what to bring and prepare

To make your registration smoother:

• Passport/ID (and any additional nationality documents)
• Your address abroad (where you are registered)
• Your expected stay period (1–4 months or possibly longer)
• Employer/study details (sometimes helpful)
• Appointment confirmation/QR code (if your municipality uses one)

Conclusion

If you stay under 4 months in the Netherlands, RNI non-resident registration is usually the route to obtain a BSN without registering as a resident in the BRP. If your stay extends beyond 4 months, you’ll typically switch to BRP resident registration with the municipality where you live.