In this guide
It is a reasonable question, and the answer has nothing to do with which policy is better. Dutch basic health insurance is not a product you choose because it beats the alternatives on features. It is a legal obligation attached to your social insurance position. Once that obligation applies to you, the quality of your international policy is beside the point — and the day it applies is usually the day you register at a Dutch municipality with a Dutch job.
What follows is the line between the two situations, the deadline that sits on it, and the cases where an international policy is genuinely still the right answer.
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The rule that decides it, and it is not “do you live here”
The trigger for compulsory basic insurance is your position under the Wlz, the Dutch long-term care act. Being insured under the Wlz makes you obliged to hold a basisverzekering with a Dutch insurer of your choice.
In practice, for the overwhelming majority of internationals, being Wlz-insured follows from living in the Netherlands, or working here and paying Dutch wage tax. If you have moved here, registered at the gemeente and started a job with a Dutch employer, you should assume the obligation applies to you from day one of that situation.
The groups that fall outside it are specific rather than vague:
- Posted workers with an A1 certificate, who stay socially insured in their home country for the duration of the posting.
- People living here but employed in another EU or EEA state, whose social insurance follows the country of employment.
- Students whose stay is purely for study, with no paid work in the Netherlands — the case we cover in detail in our guide to Dutch health insurance for international students.
- Certain diplomatic, consular and military personnel.
The four-month window, and what missing it actually costs
Once the obligation starts, you have four months to take out a basisverzekering.
Arrange it inside that window and the cover runs from the date you became insured-liable — which is the point of the rule, because it means the paperwork lag between arriving, registering, getting a BSN and choosing an insurer does not leave you with a hole.
Arrange it later and two things follow. You are uninsured for the gap, so any care you needed during it is yours to pay in full. And once the Dutch authorities cross-reference the municipal register against insurers’ records, the CAK writes to you. That letter gives you three months to take out Dutch basic insurance or to request an assessment showing you are not obliged to.
Ignore the letter and the fine follows: €529.74 in 2026 (CAK and CJIB, checked 24 September 2026), an amount that is indexed each year. Keep ignoring it and there is a further fine, after which the CAK arranges a policy on your behalf and collects the premium — a policy you did not choose, at a premium you did not shop for.
Two more points that are easy to miss:
- You pay premium from the point you take out the insurance, not for the months you spent uninsured (rijksoverheid.nl, checked 24 September 2026). That is not a reward for delay, because the care you needed in that period stays unreimbursed.
- Your employer does not do this for you. Dutch employers pay an income-linked healthcare contribution through payroll — visible on many payslips — and it is entirely separate from your own policy. Seeing a healthcare line on your Dutch payslip does not mean you are insured.
What an international policy cannot do here
Set aside the legal question and compare the two on function, because the differences are structural rather than a matter of tier.
Acceptance and pre-existing conditions. Every Dutch insurer must accept every applicant for the basisverzekering, and the basic package cannot exclude pre-existing conditions. International policies are commercial products: they underwrite, they exclude, and they can price or decline based on your medical history. That difference is invisible while you are healthy and decisive when you are not.
Zorgtoeslag. The Dutch healthcare allowance requires an eligible basisverzekering. Hold private cover instead and you cannot claim it, no matter how modest your income. Our zorgtoeslag guide covers the thresholds.
Children. On a Dutch policy, under-18s are co-insured free and are exempt from the deductible. On family international cover, children are priced members. For a family of four this alone can reverse the apparent cost comparison — see health insurance for expat families.
How Dutch providers bill. Dutch hospitals and GPs are set up to invoice Dutch insurers directly. With international cover you are more often in the pay-and-claim world: settle the invoice, submit it, wait. Workable, and consistently more administration.
Renewal and age. The basisverzekering has no age limit and no renewal risk. Expat policies can have both.
What international cover does do better is worldwide scope: treatment outside the Netherlands, evacuation, repatriation, and continuity when you move between countries. A Dutch policy covers you here and gives limited cover abroad, which is exactly why the two are complements rather than substitutes. Our comparison of travel insurance versus health insurance for expats works through where each one starts and stops.
Where SafetyWing, Cigna and similar policies genuinely fit
Before you arrive, and during the gap. Between leaving your old country’s system and becoming Wlz-insured here, you need something. Travel-medical cover such as SafetyWing’s nomad product is designed for exactly that shape of trip: bought from abroad, monthly, no Dutch registration required.
Exempt postings. If you are here on an A1 posting and remain insured at home, an international policy on top for treatment in the Netherlands is a common and sensible arrangement.
Remote workers who are not resident here. If you are genuinely not living in the Netherlands and not working for a Dutch employer, you are not in the Dutch system, and an international policy is the whole answer rather than half of it.
As a top-up alongside Dutch cover. Frequent travellers, families with an ill relative abroad, and anyone who wants repatriation cover often keep an international policy running next to their basisverzekering. That is a coverage choice, not a compliance shortcut.
Want to see what that cover costs for your age and trip length? Get a quote from SafetyWing. Our SafetyWing review and the SafetyWing versus Cigna comparison go through what those policies actually pay for, and what expat insurance costs in the Netherlands sets the price context.
Check a.s.r.’s Dutch basic policy →
Making the switch without leaving a gap
The sequence matters, and it is short.
- Establish when your obligation started — normally your registration or employment date. That is the date your Dutch policy should run from.
- Choose a Dutch insurer and apply, stating that start date. Cover for the basic package is legally identical everywhere, so you are comparing premium, policy type and contracted hospitals.
- Wait for confirmation before touching your international policy.
- Then decide what to do with the international cover — cancel it, or keep a reduced version for worldwide protection. Check its notice period, because monthly products and annual ones behave very differently.
- Answer any CAK letter immediately, including with proof of the policy you have just taken out.
- Check zorgtoeslag once the Dutch policy is live, and register with a GP if you have not already.
One timing note: switching between Dutch insurers is an annual, end-of-year exercise, but starting your first Dutch policy is not. You do that when the obligation starts, whatever the month. Premiums and conditions for the following year are published by 12 November, so anyone quoting 2027 premiums before then is guessing — see the switching deadline explainer for the dates that do apply.
The Short Version
The question is not which policy is better. It is whether Dutch law obliges you to hold the basisverzekering — and if you live and work here, it almost certainly does, from the date that situation began.
Act inside the four-month window and the transition is clean and backdated. Miss it and you carry the cost of your own care for the gap, then hear from the CAK, then pay €529.74 for a policy you were always going to need anyway.
My practical tip: treat your international policy as travel and worldwide cover rather than as your health insurance the moment you register at a Dutch gemeente with a Dutch contract. Take out the basisverzekering first, keep whatever cross-border cover you actually value, and never let a letter from the CAK sit unopened on the shelf.
Read next: the Dutch health insurance guide for expats, what Dutch health insurance covers, how the Dutch healthcare system works, the best expat insurance overview, and health insurance for international students.
Frequently Asked Questions
Can I keep my international health insurance instead of Dutch basisverzekering?
Only while you are not obliged to hold Dutch cover. Once you are insured under the Wlz — which normally follows from living and working in the Netherlands — the basisverzekering is compulsory and an international policy does not satisfy the obligation, however comprehensive it is. It can still sit on top as extra cover, which is a different question from replacing it.
How long do I have to arrange Dutch health insurance after arriving?
Four months from the moment the obligation starts. Arrange it inside that window and the policy runs from the date you became insured-liable. Miss it and you are uninsured for the gap, meaning any care you needed in that period is yours to pay, and the CAK will eventually write to you.
What is the fine for having no Dutch health insurance?
If the CAK establishes that you are insured under the Wlz without a basisverzekering, it gives you three months to arrange cover or to request an assessment. Ignore that and the fine is €529.74 in 2026, an amount indexed annually. Continued non-compliance leads to a further fine and eventually to the CAK arranging a policy for you and collecting the premium.
Who is exempt from the Dutch basisverzekering?
The main groups are people posted here by a foreign employer who remain socially insured at home under an A1 certificate, people living here but employed in another EU or EEA state, students whose stay is purely for study with no paid work, and certain diplomatic and military personnel. If you think you might be exempt, request a free assessment of your Wlz position from the SVB rather than deciding yourself.
Does SafetyWing or Cigna cover me for the CAK obligation?
No. Neither is a Dutch basisverzekering and neither discharges the statutory duty. Both can be entirely appropriate before you arrive, during an exempt posting, or as additional worldwide and repatriation cover alongside a Dutch policy — but they do not replace the basic insurance once you are obliged to hold it.
Is Dutch basic insurance more expensive than an expat policy?
For a healthy single adult, an international travel-medical policy is often cheaper on the monthly figure. The comparison changes once you count what the basisverzekering includes without underwriting: acceptance regardless of health, no exclusions for pre-existing conditions, children insured free, and eligibility for zorgtoeslag if your income is low enough. Price and value point in different directions here.
Can I claim zorgtoeslag with an international policy?
No. The healthcare allowance requires an eligible Dutch basisverzekering. This is one of the concrete financial reasons why holding private cover instead of the basic insurance can cost you money rather than save it.
Should I cancel my international policy the day my Dutch cover starts?
Not necessarily, and check the overlap deliberately. A Dutch policy covers you in the Netherlands and gives limited cover abroad; international policies often carry stronger worldwide treatment, evacuation and repatriation terms. Deciding what to keep is a coverage decision, not a formality — and cancelling before your Dutch policy is confirmed is the one sequence to avoid.