If you need to stay longer than 90 days in Finland you can apply for a visa extension. Since a visa is rarely extended you must have a really strong reason.
In cases of unexpected personal business, such as a sudden wedding or funeral, or if you are facing a force majeure, such as a natural disaster or a difficult political situation in your country, or you have an unexpected illness your visa can be extended.
A visa extension is issued by the Police authority in Finland.
If you plan to stay longer than the validity of a tourist visa you can apply for a national visa. A national visa usually allows the holder to stay for 3 months up to 6, and afterward, you can even apply for a residence permit.
Types of Finland long stay visas:
- Finland Student Visa
- Finland Work Visa
- Finland Family Reunion Visa