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.
| Canton | Deadline | First extension | Second extension |
|---|---|---|---|
| Argovie (AG) | 31.07.2021 | 31.12.2021 | |
| Appenzell Rhodes-Intérieures (AI) | 31.05.2021 | 30.11.2021 | |
| Appenzell Rhodes-Extérieures (AR) | 30.06.2021 | 31.12.2021 | |
| Bâle-Campagne (BL) | 31.08.2021 | 31.12.2021 | |
| Bâle-Ville (BS) | 30.06.2021 | 30.09.2021 | 31.12.2021 |
| Berne (BE) | 31.07.2021 | 15.09.2021 | 15.11.2021 |
| Fribourg (FR) | 31.08.2021 | ||
| Genève (GE) | 30.04.2021 | 31.07.2021 | 30.09.2021 |
| Glaris (GL) | 30.06.2021 | 31.12.2021 | |
| Grisons (GR) | 30.09.2021 | 31.12.2021 | |
| Jura (JU) | 31.05.2021 | 31.10.2021 | |
| Lucerne (LU) | 31.08.2021 | 30.11.2021 | |
| Neuchâtel (NE) | 30.04.2021 | 30.06.2021 | 31.10.2021 |
| Nidwald (NW) | 30.06.2021 | 30.09.2021 | |
| Obwald (OW) | 31.07.2021 | 31.03.2022 | |
| St-Gall (SG) | 30.06.2021 | 31.12.2021 | |
| Schaffhouse (SH) | 30.09.2021 | 31.12.2021 | |
| Soleure (SO) | 30.06.2021 | 31.10.2021 | 30.11.2021 |
| Schwytz (SZ) | 31.07.2021 | 31.12.2021 | |
| Thurgovie (TG) | 30.06.2021 | 31.10.2021 | |
| Tessin (TI) | 30.06.2021 | 30.09.2021 | 31.12.2021 |
| Uri (UR) | 31.07.2021 | 31.12.2021 | |
| Vaud (VD) | 12.09.2021 | 12.10.2021 | |
| Valais (VS) | 30.06.2021 | 31.10.2021 | |
| Zoug (ZG) | 30.09.2021 | 31.12.2021 | 31.03.2022 |
| Zürich (ZH) | 30.09.2021 | 30.11.2021 |
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