Notice of cancellation arrived too late: what you can still do now

Too late means: on the next date

For switching on 1 January, your notice of cancellation of basic health insurance must reach the health insurer by 30 November (Art. 7 para. 2 of the Federal Health Insurance Act, KVG). If it arrives later, it is not invalid, but it only takes effect later: according to the FOPH, a notice of cancellation that is not on time takes effect on the next possible cancellation date. Which date that is depends on your insurance:

Even so, the year is not entirely lost. With your own health insurer, you can still change some aspects of your deductible and model, and in some cases it is worth checking whether the notice of cancellation really was too late.

Step by step: what to do now

1. Check whether the notice of cancellation really was too late. What counts is receipt by the health insurer during normal business hours, not the postmark. Look in the tracking to see when the letter was delivered. According to the FOPH, a registered letter in the health insurer’s PO box is only deemed delivered when it is collected; if it was only collected on 1 December, it was too late.
2. Ask the health insurer for which date it is recording the cancellation. Ask for a written reply. It is also your confirmation of cancellation for the later date.
3. Inform the new health insurer. If you have already registered, tell it immediately that your notice of cancellation arrived too late. Your old basic health insurance only ends once the cancellation takes effect and the new insurer has reported uninterrupted cover (Art. 7 para. 5 KVG). What applies with two registrations is explained in the article Double insured.
4. Save with your own health insurer where you still can. A higher deductible by 31 December, a model with restricted choice of doctor at any time. Details in the next section.
5. Note the next date. In the standard model with a CHF 300 deductible: notice of cancellation to arrive by 31.03.2027. Otherwise: wait for the premium letter in autumn 2027, notice of cancellation to arrive by 30.11.2027.

The deadline calculator works out the next possible date for your situation:

What is still possible with your own health insurer

The 30 November deadline for switching applies to changing health insurer, to a lower deductible and to leaving a model. Other changes with your own health insurer do not require a notice period:

How to change your deductible and which levels there are is explained in the glossary term Changing your deductible. A higher deductible lowers the premium, but you bear more costs yourself. The discount is limited: it may not exceed 70 % of the additional risk taken on (Art. 95 para. 2bis of the Health Insurance Ordinance, KVV). From CHF 300 to CHF 2,500, that is at most CHF 1,540 a year. Whether this pays off for you depends on your costs; the deductible calculator shows the break-even point. This calculation is not a recommendation.

If the health insurer disputes receipt

If, according to your records, your notice of cancellation arrived in time but the health insurer says it was too late or never arrived, what counts is proof. You have to prove timely receipt, because you derive rights from the cancellation (Art. 8 of the Swiss Civil Code, CC). Good proof is the tracking of a registered letter or A Mail Plus and a confirmation of receipt from the health insurer. How to get reliable proof next time is explained in the article Cancelling by email or by registered mail?.

If the health insurer maintains its position, you can request a written decision: the health insurer must issue a written decision on orders you do not agree with (Art. 49 para. 1 of the Federal Act on the General Part of Social Insurance Law, ATSG). You can lodge an objection against the decision with the health insurer within 30 days; the objection procedure is free of charge (Art. 52 ATSG). Beforehand or in parallel, the Office of the health insurance ombudsperson gives free advice and mediates in problems with switching health insurer.

What another year can cost: premiums 2026

How much it makes to stay with an expensive health insurer for another year is shown by the 2026 premiums in the municipality of Basel (region 0), adults born in 1988, with accident cover, across all 117 offers and models (source: FOPH):

With a CHF 300 deductible, there was a difference of CHF 2,805.60 a year between the most expensive and the cheapest offer, and CHF 733.20 between the median and the cheapest. For the most expensive offer, a standard model, the premium with a CHF 2,500 deductible fell by CHF 128.00 a month or CHF 1,536.00 a year, just below the statutory cap of CHF 1,540. The FOPH publishes next year’s premiums at the end of September; you can calculate with them in the premium calculator.

Example: arrived on 1 December

Example with fictitious people. Tim, 38, and his sister Nora, 35, live in Basel. Both send their notice of cancellation on Monday, 30.11.2026, by A Mail Plus. For both, the tracking shows delivery on Tuesday, 01.12.2026.

Special cases

• Supplementary insurance cancelled too late. The supplementary insurance then continues until the next date under your contract. The law allows ordinary cancellation at the end of the third or any subsequent year with three months’ notice (Art. 35a of the Insurance Contract Act, ICA); the exact dates are in the general terms and conditions. You can only cancel at any time for good cause, if continuing the contract cannot reasonably be expected of you in good faith (Art. 35b ICA). The general terms and conditions and the information from the health insurer prevail.
• Premium change during the year. If, exceptionally, the health insurer notifies you of a new premium during the year, you can cancel again with one month’s notice (Art. 7 para. 2 KVG).
• Moving or changing jobs. If you have to leave your health insurer because you move your place of residence or change jobs, the insurance ends when you move or start the job (Art. 7 para. 3 KVG). According to the FOPH, however, a higher premium because of a move does not give you an extraordinary right of cancellation.
• Unpaid invoices. If your notice of cancellation was on time but arrears for which you received a reminder have not been paid by 31 December, it does not take effect either; you can only switch on the next date.

Common mistakes

• Hoping for goodwill and doing nothing. The deadlines apply equally to all health insurers. Clarify in writing on which date the cancellation takes effect, and plan accordingly.
• Not informing the new health insurer. A registration that cannot take effect leads to queries and duplicate post. Let the new health insurer know immediately.
• Switching hastily from the standard model to the telemedicine model. You lose the 1 July date.
• Notifying a higher deductible after 31 December. It then only takes effect a year later.
• Throwing away the proof. Without tracking or a confirmation of receipt, you cannot prove timely receipt.

How to send your next notice of cancellation safely is shown in the article Cancelling by email or by registered mail?, and all deadlines are under Health insurance notice periods. The cancellation letter generator creates a letter for the next date, and Switching health insurer shows the whole procedure. You will find further articles in the Switching health insurer section.