The Digital and Population Data Services Agency informs:

NEW ONLINE FORM FOR YOU 18–21 YEAR OLD FINNISH CITIZEN

If you are 18-21 years old and a citizen of both Finland and another state, you can notify the Digital and Population Data Services Agency that  you wish to retain your Finnish citizenship at the age of 22 and onwards. The notification can now be done by using a new online form. You can also still notify the agency about the matter by filling in a paper form at a Finnish mission or by submitting a free-form notification. You can lose your citizenship at the age of 22 if you do not have a sufficient connection with Finland.

Read more on our website: https://dvv.fi/en/notification-of-retaining-finnish-citizenship(Link to another website.) (Opens New Window)