Swiss Tax Calendar

Swiss tax return deadlines by canton ({year})

Overview of standard declaration deadlines, common extension limits, and key notes by canton. Always confirm local updates with the tax authority of your municipality.

Canton Regular filing deadline ({year}) Latest standard extension ({year}) Notes / fees
Aargau31.03.2026varies by municipalityExtension deadlines vary by municipality
Appenzell Ausserrhoden31.03.202631.12.20261st extension free
Appenzell Innerrhoden30.04.202630.11.2026Free
Basel-Landschaft31.03.202630.09.2026After a certain date, the extension may incur a fee
Basel-Stadt31.03.202631.12.2026Free until a certain date; after that, a fee may apply
Bern15.03.202615.11.2026Online extension requests; fee may apply depending on the channel
Fribourg31.03.202615.12.2026Extension has a fee
Geneva31.03.202631.10.2026Extension fee: CHF 20-40 depending on duration
Glarus31.03.202630.09.2026Free
Graubunden31.03.202630.09.2026Free, but only once
Jura28.02.202631.10.2026Free until a certain date
Lucerne31.03.202631.08.2026Free extension request available
Neuchatel28.02.202631.10.2026Free
Nidwalden31.03.202630.09.2026Free
Obwalden30.04.202631.12.2026Free
Schaffhausen31.03.202630.11.2026Free
Schwyz31.03.202631.12.2026Free until 31.07; after that, no request can be made
Solothurn31.03.202630.11.2026Free until 31.07; later extensions incur a fee
St. Gallen31.03.2026individual, max. 30.11.{year}Free
Thurgauindividual: 31.03.{year} or 30.04.{year}individualFree
Ticino30.04.202631.12.2026Free
Uri31.03.202631.10.2026Free
Valais31.03.202631.07.2026Free
Vaud15.03.202630.09.2026Free
Zug30.04.202631.12.2026Free
Zurich31.03.202630.11.2026Free

Don't want to think about deadlines or worry about extensions?

Contact us and we'll handle this process for you, step by step.

Contact us Book a free consultation