A construction work report must be submitted for construction, repair and maintenance work carried out at a construction site.
The contractors must collect information on the construction works and the project supervisor must collect information on the employees of the joint site.
First find out whether you are obligated to report contract or employee information to the Tax Administration. Information on contracts and employees is provided on different grounds.
You can enter information in MyTax. The best way to report large quantities at a time is to use the Ilmoitin.fi website.
The service is free of charge.