Entering Finland is a breeze and you'll experience no problems if your papers are in order.
Travellers arriving from outside the EU by air or sea can bring duty-free goods up to the value of €430 without declaration (€300 if arriving from outside the EU by bus, car or train). You can also bring in up to 16L of beer, 4L of wine, 2L of liquor not exceeding 22% vol or 1L of spirits, or 200 cigarettes or 250g of tobacco.
If you’re coming from another EU country, there's no restriction on the value of gifts or purchases for personal use.
Although technically part of the EU, arriving on or from the Åland archipelago carries the same import restrictions as arriving from a non-EU country.
A valid passport or EU identity card is required to enter Finland.
Generally not required for stays of up to 90 days; some nationalities will need a Schengen visa.
Most Western nationals don’t need a tourist visa for stays of less than three months. South Africans, Indians and Chinese, however, are among those who need a Schengen visa. For more information, contact the nearest Finnish embassy or consulate, or check the website https://um.fi/entering-finland.