From 14 April on, when you log in to MyTax you will activate Suomi.fi Messages. Tax correspondence will be delivered electronically only, in MyTax. Read more about the changes.
Making corrections to electronically filed annual information returns
- Making corrections to annual information returns for the tax year 2025 (pdf) (7 November 2025)
- Making corrections to annual information returns for the tax year 2024 (pdf) (21 Oktober 2024)
- Making corrections to annual information returns for the tax year 2023 (pdf) (20 November 2023)
- Making corrections to annual information returns for the tax year 2022 (pdf) (5 December 2022)