A possibility to vote by post will be introduced in Finland in the parliamentary elections of 2019. Eligible voters living permanently abroad and eligible voters staying abroad at the time of the elections will have the right to vote by post in general elections. An eligible voter wishing to vote by post orders the postal voting documents to an address abroad, casts his or her vote, and sends the vote back to Finland to the central municipal election board of his or her municipality.
Order postal voting documents here (in Finnish).
Here is what you should do:
Things to take into account when voting by post
Once the voter has posted the postal vote covering envelope to Finland, the vote has been cast and the voter can no longer vote in the elections in question, for example at a mission abroad or at a polling station in Finland. A postal vote is final, in the same manner as all other votes, and it cannot be changed or replaced later.
The same standards apply for postal voting as for regular voting taking place before election authorities. For example, voting more often than once or in another person’s name is an offence punishable under the Criminal Code, as is influencing another person's voting by violence or threat of violence.
Make sure that your contact details are up-to-date
The Population Register Centre sends a notice of right to vote (polling card) to all eligible voters whose address is known. The polling card is sent to the voters around 1.5 months before the election day. The polling card indicates the address to which you must return your postal vote (the address of the central municipal election board of your municipality). Therefore, it is important that you make sure well in advance that your contact details are up-to-date in the Population Information System.
>> Read more on the website of the Population Register Centre.