How to Switch Health Insurance in the Netherlands: Step-by-Step

Switching Dutch health insurers is one of the few genuinely easy pieces of Dutch admin, and one of the most commonly avoided. The procedure takes well under an hour online, the new insurer does the cancelling for you, and nobody can turn you down for the basic policy. What trips people up is not difficulty — it is the calendar, and the assumption that you must sort out the old policy before you can arrange the new one. You do not. It works the other way round.

This is the step-by-step procedure. If you want the deadline mechanics and the reasoning behind the dates in more depth, our article on the January switching deadline covers that side; here I stay on the practical sequence, in the order you will actually do it.

Disclosure: this article contains affiliate links. If you sign up via them WT Digital may earn a small commission at no extra cost to you. The premium you pay is the same as going direct. This is general information, not insurance advice.

The three dates that structure everything

12 November — the legal deadline by which every insurer must have published its premiums and conditions for the coming year. Before this date you cannot compare anything real; after it, the whole market is visible at once.

31 December — the deadline to cancel your current basic policy. There is no grace period on this one. Miss it and you are renewed for the whole calendar year.

1 February — if you cancelled before 1 January but have not yet chosen a new insurer, you have until 1 February to sign, and the new cover applies retroactively from 1 January. This is a safety net, not a plan: use it only if you genuinely need the extra weeks.

So the switching season proper runs from mid-November to 31 December. Everything before that is preparation, and preparation is where the decision quality comes from.

Before November: four things to prepare

1. Write down what you actually used this year. Open your insurer’s app and look at the claims: GP visits, physiotherapy sessions, dental work, prescriptions, any specialist pathway. This list — not a generic profile — decides whether supplementary cover earns its premium next year and which reimbursement caps matter to you.

2. List the providers you want to keep. Your GP, your hospital, your dentist, any therapist. Provider contracts are renegotiated annually, so these names become search terms in November.

3. Note your current policy details. Insurer, exact policy name, policy number, whether you hold a voluntary deductible on top of the €385 mandatory amount, and the current monthly premium including supplementary cover. You will need the policy number for the cancellation service.

4. Decide your deductible position in advance. A voluntary deductible of up to €500 extra lowers your premium; it also raises what you pay before reimbursement starts. Decide this while calm, not while comparing prices. The eigen risico explainer walks through when the trade is sensible.

For reference while you plan: the average nominal basic premium for 2026 works out at around €159 per month on the government’s own estimate, with actual premiums roughly between €142 and €185 depending on insurer, policy type and deductible. Premiums for 2027 are not published until November.

The seven steps of the switch

Step 1: Compare after the premiums are out

From mid-November, compare on three axes rather than one: the monthly premium, the reimbursement rules for care outside the network, and whether your own providers are contracted. A comparison site such as Independer lets you filter by policy type and deductible and see the whole market in one table, which is faster than opening a dozen insurer sites. Comparison is free for you; the site is paid by the insurer if you sign through it, and the premium is identical either way.

If you already know which insurer you want, going direct is equally fine. a.s.r. is one example, and its own switching page restates the calendar precisely: moving to another health insurer is only possible from 1 January of the following year. Switch before 31 December and your new insurer cancels the old policy for you; cancel yourself and you must do so by 31 December at the latest, after which you have until 1 February to arrange the new policy. Mid-year switching is limited to specific situations, among them turning 18 and joining a new employer collectivity (asr.nl/zorgverzekering/overstappen, checked 17 September 2026).

Check a.s.r. health insurance →

A third route sits alongside a comparison site and going direct: buying through a consumer collective. UnitedConsumers is not an insurer — it negotiates as a group and has worked with VGZ since 2006 — and its member benefit is 20% off all aanvullende verzekeringen and off the tandartsverzekering, with basic policies sold under that partnership listed from €147.40 a month (unitedconsumers.com/zorgverzekering, checked 18 September 2026). The switching calendar above is identical whichever route you take. What differs is that the collective narrows you to one insurer, and that its site carries no English-language information at all, checked 18 September 2026.

Check UnitedConsumers →

Step 2: Check the network before the price

Type your GP, hospital, dentist and therapist into the new insurer’s provider search (zorgzoeker) for the coming year, not the current one. A cheaper naturapolis whose network excludes your hospital is not cheaper. If someone in the household is mid-treatment, this step outranks every other consideration.

Step 3: Read the reimbursement clause

Find the percentage your candidate policy pays for non-contracted care — typically somewhere in the 65 to 80 percent range of the average contracted rate for natura-type policies, and up to the statutory or market-conform rate for restitution. Our policy reading checklist shows where these clauses sit in the documents.

Step 4: Decide the supplementary package separately

Take the list from your preparation step and check it against the candidate’s reimbursement overview: annual maximum, per-session cap, waiting period, referral requirement. Supplementary cover is where insurers genuinely differ, and where a package that looks similar can pay half as much. See our comparison of supplementary insurance for expats.

Two things to establish before cancelling: whether the new insurer asks health questions for the package you want, and whether any benefit you need has a qualifying period. Both are answerable in five minutes and unpleasant to discover afterwards.

Step 5: Apply online, and use the opzegservice

The application asks for your BSN, address, date of birth, bank details for the direct debit, your chosen deductible and — importantly — your current insurer and policy number, with a box to authorise the new insurer to cancel the old policy on your behalf. Tick it. Under this opzegservice arrangement the new insurer handles the cancellation, which is why you never need to write a cancellation letter yourself.

Do this before 31 December. Earlier is better simply because insurer service lines get slower as the month closes.

Step 6: Verify the cancellation actually happened

Within a few weeks you should receive confirmation from the old insurer that the policy ends on 31 December, and a policy sheet from the new insurer starting 1 January. If the first of those does not arrive, contact the old insurer yourself before the year ends. The service works reliably, but the consequence of a failed cancellation is yours, so treat confirmation as part of the switch rather than a formality.

Step 7: Update the practical details in January

• Register your new insurance details with your GP, pharmacy and dentist.
• Check whether any ongoing referral or authorisation needs to be reissued under the new policy.
• If you receive zorgtoeslag, your entitlement is not affected by switching insurer, but a change in premium is a good moment to check that your income estimate at Dienst Toeslagen is still right — see zorgtoeslag explained.
• Save the new policy conditions and reimbursement overview somewhere you will find them next autumn.

Switching outside the window

The basic insurance is annual, and after 31 December you are generally committed for the calendar year. The recognised routes to a mid-year change are situational rather than discretionary:

• A collective arrangement starts or ends — for example when you change employer and gain or lose access to a collective package.
• The insurer changes the policy conditions to your disadvantage during the year, which can open a cancellation right.
• You leave the Netherlands and the insurance obligation ends. This is a deregistration matter, not a switch: cancel only once the obligation genuinely ends, and keep the confirmation.
• You arrive in the Netherlands and become subject to the obligation. New arrivals are not bound by the annual window at all — you take out cover when the obligation starts, within four months, backdated to that date.

Supplementary insurance sometimes has more flexible cancellation terms than the basic policy, but they vary per insurer and per package, so check the conditions rather than assuming.

Six switching mistakes worth avoiding

Cancelling first and choosing later. The opzegservice exists precisely so you never have to do this. Cancelling on your own initiative and then getting distracted is how people end up using the 1 February safety net under pressure.

Comparing on premium alone. The premium is one of three variables. The network and the non-contracted percentage are the other two, and they only surface when you need care.

Forgetting that supplementary cover follows the basic policy. You cannot keep a supplementary package at the old insurer while moving the basic policy elsewhere. Check the new package before you commit.

Assuming the deductible carries over. It resets on 1 January at the new insurer as it would have at the old one. But treatment that started in the old year can still produce invoices charged to that year — so if you are mid-pathway, expect a late bill against the old year rather than a clean line.

Switching while mid-treatment without checking continuity. If you are in a hospital pathway or a mental-health trajectory, verify with both the provider and the new insurer how the transfer is handled before you sign.

Leaving it to 30 December. Nothing goes wrong in principle. In practice, if a document is missing or a bank detail is rejected, you have no time to fix it.

Frequently Asked Questions

Do I have to cancel my old Dutch health insurance myself?

Normally no — the new insurer cancels it for you via the opzegservice when you apply before 31 December. Verify that the old insurer confirms the cancellation in writing.

Can I switch health insurance in the middle of the year?

Not the basic insurance, other than in specific situations: a collective arrangement starting or ending, the insurer changing conditions mid-year, or the insurance obligation itself beginning or ending.

Nothing is lost: the deductible resets on 1 January whether or not you switch. Care that began in the previous year may still be charged against that year.

No — supplementary cover is tied to the basic policy at the same insurer. Arrange the replacement package as part of the switch.

Will a new insurer refuse me because of my medical history?

Not for the basic policy, where there is an acceptance obligation. Supplementary packages may involve health questions and can be refused or restricted.

I just moved to the Netherlands. Does the switching window apply to me?

No. New arrivals arrange cover when the obligation starts — within four months, backdated to that date.

Final thoughts

The switch itself is genuinely a forty-minute job. What makes the difference between a good switch and an expensive one is the twenty minutes of preparation before the premiums are even published: knowing what you used, knowing which providers you want to keep, and knowing your position on the deductible.

Do that now, then come back in mid-November when the real numbers are out. Compare your current policy against the market with Independer, and if you already know which insurer you want, apply directly and let the opzegservice do the rest.

Related reading: the January switching deadline explained, best Dutch health insurance plans, how to read your policy documents, and the full health insurance guide for expats.