The year's administrative calendar in French-speaking Switzerland
Every year, the same letters arrive at the same seasons: the health-insurance premium in October, the tax return in spring, the 3rd-pillar reminder in December. Three dates cannot be caught up, 30 November to change health fund, 31 December for the 3rd pillar, and the tax-return deadline, specific to your canton. Here is the whole year, with the rule and its source.
A free wézon space sends you a reminder before each deadline (at 30 and 7 days), tailored to your canton and situation, and answers every letter you receive. The space itself is in French. Create my resident space.
The three dates that concern everyone
The termination must be received by your fund by 30 November at the latest for a change on 1 January. It is receipt that counts, not sending.
Source: art. 7 LAMal/KVGThe payment must be credited before 31 December to be deducted from that year's tax. Employee maximum 2026: CHF 7,258.
Source: art. 7 OPP 3 ; art. 33 LIFD/DBG31 March in Geneva, Valais and Fribourg; 15 March in Vaud; 28 February in Neuchâtel. Online extension everywhere.
Source: cantonal tax administrationsTax-return deadline, by canton (Romandy)
| Canton | Standard deadline | Extension |
|---|---|---|
| Geneva | 31 March | online extension until 30 September |
| Vaud | 15 March | tolerance until 30 June, e-Délai extension until 30 September |
| Valais | 31 March | free extension until 30 June |
| Fribourg | 31 March | extension on request |
| Neuchâtel | 28 February | extension until 31 October |
| Jura | late March (to be confirmed) | extension on request |
Deadlines checked on 20 September 2026 with the cantonal tax administrations. The Jura deadline was not confirmed on a dated source and is flagged as such.
The year, month by month
JanJanuary
The amount changed on 1 January. Check the direct debit, and that the fund chosen in November has taken effect.
Source: insurance policyCHF 40, to be displayed before using the motorway again. The e-vignette, linked to the plate, avoids the sticker.
Source: FOCBSMarMarch
The annual form. The deadline varies by canton, 31 March in Geneva, Valais and Fribourg, 15 March in Vaud, 28 February in Neuchâtel, with an online extension everywhere. Gather your salary certificate, 3a and pension-fund statements, and bank balances as at 31 December.
Source: cantonal tax administrationsA 3a payment made last year is deducted from taxable income (up to CHF 7,258 for an employee). If you did not pay in, that deduction is lost for that year, worth planning it for the current year.
Source: art. 33 LIFD/DBG ; art. 7 OPP 3AprApril
The year's tax instalments. If your income has fallen, you can adjust them to avoid a balance at year end.
Source: cantonal tax administrationJunJune
To leave your home in the autumn, the three-month notice period runs from now; the termination is sent by registered mail. If you paid a rent deposit, it is up to three months' rent, recoverable when you leave.
Source: art. 266c CO/ORAugAugust
If you move, school enrolment is done as soon as the new address is known, not at the start of term. After-school care has its own, earlier window.
Source: cantonal serviceSepSeptember
The Federal Office of Public Health has published next year's premiums. Your fund will write to you in October, and you have until 30 November to change. Compare now, before the rush.
Source: FOPH ; art. 7 LAMal/KVGOctOctober
The new amount of your premium. There are six weeks left to change, and a premium increase often opens an extraordinary right to terminate a supplementary policy.
Source: art. 7 LAMal/KVGNovNovember
To change your basic insurance for 1 January, the termination must be RECEIVED by your fund by 30 November at the latest, it is receipt that counts, not sending. Only terminate once the new affiliation is confirmed.
Source: art. 7 LAMal/KVGDecDecember
For your payment to count in this year's tax, the money must be credited before 31 December, a transfer on the 30th may arrive too late. Employee maximum 2026: CHF 7,258.
Source: art. 7 OPP 3Frequently asked questions
Until when can you change your basic health insurance in Switzerland?
The termination of basic insurance (LAMal/KVG) must be received by the fund no later than 30 November to take effect on 1 January. It is the date of receipt that counts, not the date of sending. Only cancel once the new affiliation is confirmed.
What is the tax-return deadline in the French-speaking cantons?
The standard deadline is 31 March in Geneva, Valais and Fribourg, 15 March in the canton of Vaud (with tolerance until 30 June) and 28 February in Neuchâtel (extension possible until 31 October). An online extension is available in all these cantons. The Jura deadline should be confirmed with the cantonal administration.
Until when can you pay into a 3rd pillar (3a) to deduct it from that year's tax?
A payment into a 3a account must be credited before 31 December to be deducted from that year's taxable income. A transfer made on 30 December may arrive too late. The maximum deductible amount for an employee affiliated to a pension fund is CHF 7,258 in 2026.
When do you need to buy the Swiss motorway vignette?
The annual vignette (CHF 40) must be displayed before using the motorways, at the latest on 1 February of the year of validity. The electronic e-vignette, linked to the number plate, avoids the sticker.
Get a reminder before every deadline
The wézon resident space builds your calendar from your canton and situation, warns you at 30 and 7 days, and answers every letter from the administration. Free, no strings. The space is in French.
Create my space, free →The federal dates (30 November, 31 December, vignette) apply throughout Switzerland; the tax-return deadlines are those of the French-speaking cantons, checked on 20 September 2026. This page describes deadlines; it does not replace the official notice from your fund, your tax administration or your adviser.