Guardianship of a minor child
The property of a person under the age of 18 belongs to them, but their guardian acts as their trustee and is responsible for their financial affairs.
Please note that as of 1 May 2026, we will record the guardianship of a minor’s assets in the register when the assets exceed 30,000 euros. The current threshold is 20,000 euros. This is due to a legislative amendment entering into force in May.
At the Guardianship e-service, you can submit applications related to guardianship matters, report on the management of your client’s assets, and view the information you have already submitted. For example, you can make a property invertory, an annual statement and a final statement. The e-service is available in Finnish and Swedish language.
Are the custodians of a child missing from the Population Information System?
Please notify us if the information of a minor child is missing details about their parents or custodians. Read the instructions on our webpage Registering a child born abroad.
Do you need help?
Read the frequently asked questions about guardianship of a minor.
Telephone service: 0295 536 256.
Service hours: Mon–Fri 9–15.
The call and the waiting time will cost you the local and mobile rates agreed with your operator.