In January 2008, Matti Hiltunen registered the domain piraattipuolue.fi and set up a BBS on the site. In May 2008, about 50 founding members of the party held the founding assembly in Tampere.[3] In September 2008 the party started to collect the 5,000 supporter cards [fi] needed to officially register the party. The party's goal was to take part in the 2009 European Parliamentary election. The supporter cards were collected by 1 June 2009,[4] too late for the elections. The party was officially registered on 13 August 2009.[5]
In October 2009, the Pirate Party took part in the special municipal election of Loviisa with 1 candidate, but did not win a seat. The party's first major election was the 2011 Finnish parliamentary election with 127 candidates in 11 constituencies,[6] receiving 0.5% of votes and becoming the largest party to have no seats in parliament.[7] In the 2014 European Parliament election it won 12,378 votes (0.7%).[8] In the 2015 Finnish parliamentary election the party received 25,105 or 0.8% of total votes, and was left without seats in the parliament.[9] Consequently, the Ministry of Justice de-registered the party for failing to win seats in two consecutive parliamentary elections.[10] The party collected the required 5,000 supporter cards again and was re-registered on 6 June 2016.[11] After failing to win seats in the next two parliamentary elections, it was de-registered again in 2023.[12]
In the 2017 municipal elections, the Pirate Party gained two seats on municipal councils, one in Helsinki and one in Jyväskylä. Helsinki council member Petrus Pennanen received 1,364 votes;[13] Jyväskylä council member Arto Lampila received 191 votes.[14] Both lost their seats in the municipal elections of 2021.
The party has a youth organisation, the Pirate Youth (Finnish: Piraattinuoret). It was founded on 5 February 2009 in Helsinki. It has an upper age-limit of 28 years.[16] Membership of Piraattinuoret is free of charge.