When you log in to MyTax, your tax-related letters will change from paper to electronic form automatically. Read more about the changes.
Investment funds, investment service firms, and other other parties that provide brokerage services of securities can use this annual information form to provide the Tax Administration with information concerning stocks, securities and derivatives transactions under their intermediation and execution during the reportable year.
Submit the information in Ilmoitin.fi
Guidance for annual information returns as software files — specifications of data formats
Instructions
2026 – Annual information return on purchases and sales of securities and derivatives
2025 – Annual information return on purchases and sales of securities and derivatives
Does the annual information return need to be corrected?
See instructions for how to correct the annual information return
The Tax Administration can use automated decision-making in the context of resolving tax matters. This means that a decision concerning your tax matter may be based on partial or full use of an automated decision-making system. Read more about automated decision-making at the Tax Administration (only in finnish).
Page last updated 6/16/2026