Two laws, two deadlines: supplementary is not basic
You can switch your basic insurance (KVG) as of 1 January if your cancellation reaches your current insurer by the end of November. Supplementary insurance, by contrast, is governed by the Insurance Contract Act (VVG): it is voluntary, subject to private law, and the notice period is considerably longer.
At most insurers, supplementary insurance ends on 31 December if the cancellation arrives by 30 September. So if you only think about switching in November, you have long since missed the supplementary insurance date. This is the most common pitfall of the switching season.
What the law says: revVVG Art. 35a
Since the VVG revision (in force since 2022), there has been a statutory safety net: every supplementary health insurance can be cancelled at the end of the third insurance year at the latest, and every year thereafter, with three months' notice, in text form. Even a contract with a longer agreed term can be ended this way.
Important for insured persons: in supplementary health insurance, the ordinary right of cancellation, like the right of cancellation after a claim, belongs only to you as the customer, not to the insurer. Your ongoing supplementary insurance therefore cannot simply be cancelled by the insurer with ordinary notice.
Text form means that, by law, an email is sufficient, for example. However, some AVB (general terms and conditions) still require a signed written cancellation. You are on the safe side with a signed letter sent by registered mail, which every insurer accepts.
Deadlines in practice: usually 30 September
What counts is the date of receipt, not the postmark: the cancellation must have reached the insurer by the cut-off date. If 30 September falls on a weekend, several AVB require receipt by the last working day before it, so build in some reserve.
Minimum terms differ from insurer to insurer: many products allow you to leave for the first time at the end of the first year, while some insurers bind you for three years. Some also count by insurance year instead of calendar year, in which case the contract anniversary is the date. The AVB of your product are always decisive.
Beware of linked products: at some insurers, cancelling the hospital cover automatically terminates other supplementary products as well. Before cancelling, check which types of cover are linked.
The safe order when switching
The golden rule: only cancel your existing supplementary insurance once you have the new insurer's written confirmation of acceptance. Unlike basic insurance, supplementary insurance has no obligation to accept: the new insurer reviews your health information and can add reservations or reject you. If you cancel first, you risk a gap in cover.
Allow for the whole chain: application, the new insurer's health assessment, the statutory 14-day revocation period, and only then the sending of the cancellation, which must arrive by 30 September at most insurers. For a switch on 1 January, this means: ideally apply by mid-August; from the beginning of September, the date can hardly be reached via the normal route.
When comparing, it pays to look at the benefits before the price: hospital, outpatient and dental cover differ greatly. At easyall, you compare supplementary insurance by cover, and the cancellation letter is created automatically with your application.
Checklist: cancelling supplementary insurance with ordinary notice
This is how to proceed step by step, with enough reserve for each stage:
- Check the AVB: minimum term, cancellation date (calendar or insurance year), required form, linked products.
- Compare new supplementary insurance by benefits and submit your application in good time: by around mid-August for the common date of 30 September.
- Wait for the new insurer's written confirmation of acceptance; never cancel before then.
- Let the 14-day revocation period pass.
- Send the cancellation signed and by registered mail, with receipt by the insurer by the date in the AVB, usually 30 September.
- Keep the confirmation of receipt of your cancellation; the new policy starts without a gap on 1 January.
Frequently asked questions
- By when must I cancel my supplementary insurance if I want to switch on 1 January 2027?
- For a contract ending at the end of 2026, the cancellation had to arrive at most insurers by 30 September 2026 (the date of receipt counts, not the postmark). Some products have minimum terms of up to three years or count by insurance year; the AVB of your contract are decisive. If that date has passed and your premium rises, check the adjustment letter and your AVB: they state whether and by when you can cancel because of it.
- Can the insurer cancel my supplementary insurance?
- Not with ordinary notice: in supplementary health insurance, the ordinary right of cancellation, like the right of cancellation after a claim, has belonged solely to the insured person since the revVVG. Ongoing contracts are therefore particularly well protected for you.
- What happens if I cancel first and the new insurer rejects me?
- Then you face a gap in cover, because supplementary insurance has no obligation to accept. So only cancel once you have the new insurer's written confirmation of acceptance, and always answer the health questions truthfully.
- Is switching supplementary insurance worth it at all?
- Often yes, but compare the benefits first, not just the premium, and bear in mind the new health assessment. Only cancel the old supplementary insurance once you hold the new insurer's written acceptance.
Sources
Official sources and legal bases for this guide (external links).
- Insurance Contract Act (VVG), SR 221.229.1 – official text in German · Fedlex, Classified Compilation of Federal Legislation
- Taking out, changing and cancelling health insurance · ch.ch, Confederation, cantons and communes
How easyall works
With easyall you compare basic and supplementary insurance and apply online; this is free for you because the insurers pay us a commission for the intermediation. Up to 40% cashback – from our commission, only on supplementary insurance. Details in the GTC (section 5).
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