Finnish citizenship by naturalisation

Adult application and personal conditions

Adult applicants must be at least 18, have a reliably established identity, live in Finland and be in Finland when applying. Integrity and payment obligations also apply, including taxes, fines and child maintenance; certain minor fines do not prevent citizenship. Apply only after meeting the applicable requirements.

Eight-year default and five-year language branch

For applications from 1 October 2024, the default is the past eight years in Finland. Meeting the citizenship language requirement reduces this to the past five years. Residence throughout must be lawful. Earlier applications follow the earlier rules; Nordic and other specified cohorts have separate reductions.

Effective from 2024-10-01

Permit status and residence credits

With a first A permit, counting starts on arrival if already granted, otherwise on the permit grant. For applicants previously on a B permit, half that earlier residence counts; an A or P permit is required at application and at least one year under A or P before decision. Permit gaps do not count.

Residence abroad and the final year

Counted residence can include 365 days abroad in total, at most 90 during the year immediately before application. Excess days do not count. Departure and return days count as Finnish residence. Five continuous years abroad interrupt the clock and restart counting.

Effective from 2024-10-01

Finnish or Swedish language evidence

Satisfactory spoken and written Finnish or Swedish is required. Specified sign-language alternatives apply with speech disability or hearing impairment. Accepted proof includes YKI, a satisfactory civil-service oral and written certificate, and qualifying Finnish education. Limited language exceptions can be requested but are rarely granted; obtain the certificate before applying unless seeking an exception.

YKI level and accepted skill combinations

For the current YKI test, grade 3 or higher must be obtained in an accepted pair: speaking and writing, listening comprehension and writing, or reading comprehension and speaking. Migri expressly equates intermediate grade 3 with CEFR B1. Two certificates may form the pair; tests taken before 2012 have separate rules.

Livelihood requirement from December 2025

Applications from 17 December 2025 require lawful resources sufficient to live on and no more than three months in total of unemployment benefit or social assistance over the preceding two years, assessed at decision. Relevant household social assistance can include a spouse's benefit. Applicants aged 65 or above are exempt; serious-ground derogations may be possible. Earlier applications retain the earlier rules.

Effective from 2025-12-17

Future civic-knowledge rule, not a current test

Migri states that the civic-knowledge amendment enters into force on 1 January 2027, but applies only to citizenship applications submitted from 1 March 2027 after transition. For ages 18–64, it can be met through the citizenship test or specified Finnish- or Swedish-language matriculation or higher-education credentials in Finland, subject to limited derogations. It is not a requirement for September 2026 applications.

Effective from 2027-01-01

Multiple citizenship accepted

Finland accepts multiple citizenship and does not impose a general renunciation requirement when granting Finnish citizenship. This does not determine whether another country permits its nationality to be retained; Finland treats a multiple national with Finnish citizenship as Finnish.