We prepared a summary of submission deadlines for corporate tax returns in all Swiss cantons for fiscal year 2020. Please note that we do not accept any liability for this document and that only those deadlines that are officially communicated by local authorities are applicable. Please double check with your local tax authorities the deadline applicable to your canton.

CantonDeadlineFirst extensionSecond extension
Aargau (AG)31.07.202131.12.2021
Appenzell Innerrhoden (AI)31.05.202130.11.2021
Appenzell Ausserrhoden (AR)30.06.202131.12.2021
Basel-Landschaft (BL)31.08.202131.12.2021
Basel-Stadt (BS)30.06.202130.09.202131.12.2021
Bern (BE)31.07.202115.09.202115.11.2021
Freiburg (FR)31.08.2021
Geneva (GE)30.04.202131.07.202130.09.2021
Glaris (GL)30.06.202131.12.2021
Grisons (GR)30.09.202131.12.2021
Jura (JU)31.05.202131.10.2021
Lucerne (LU)31.08.202130.11.2021
Neuchâtel (NE)30.04.202130.06.202131.10.2021
Nidwald (NW)30.06.202130.09.2021
Obwald (OW)31.07.202131.03.2022
St-Gall (SG)30.06.202131.12.2021
Schaffhouse (SH)30.09.202131.12.2021
Soleure (SO)30.06.202131.10.202130.11.2021
Schwytz (SZ)31.07.202131.12.2021
Thurgovie (TG)30.06.202131.10.2021
Tessin (TI)30.06.202130.09.202131.12.2021
Uri (UR)31.07.202131.12.2021
Vaud (VD)12.09.202112.10.2021
Valais (VS)30.06.202131.10.2021
Zoug (ZG)30.09.202131.12.202131.03.2022
Zürich (ZH)30.09.202130.11.2021