Veikkausliiga side IFK Mariehamn, for example, decided not to register for the tournament, as well as some Ykkönen teams.
Depending on their position within the league system, teams entered in different rounds.
Teams from the first three levels of the Finnish league pyramid entered in the Fourth Round, with the exception of Veikkausliiga clubs Tampere United, FC Haka, FC Honka and TPS.
These four teams entered in the Sixth Round because they have qualified for European competitions after the 2007 season.
The tournament started on 1 April 2008 with the First Round and concluded with the Final held on 1 November 2008 at Finnair Stadium, Helsinki.
The match between Honka and Tampere United has been postponed to a later date because of the Tampere's participation in the UEFA Champions League 2008–09 qualification rounds.