Depending on the country of residence, there are generally certain deadlines:
| Country | Tax year 2025 (submission in 2026) | Tax year 2026 (submission in 2027) |
|---|
| Germany | 31 July 2026 | 31 July 2027 |
| Austria | 30 April 2026 (paper)
30 June 2026 (online) | 30 April 2027 (paper)
30 June 2027 (online) |
| Switzerland | 31 March 2026 (standard) | 31 March 2027 (standard) |
Note: The submission deadline may differ – depending on whether you use a paper form or electronic submission for your tax return, or if you are represented by a tax advisor. For specific questions regarding your tax return, we advise you to consult a tax advisor.