Since their foundation Karlskrona AIF has participated mainly in the middle lower divisions of the Swedish football league system. They did play second tier football in Division 2 Södra and Division 1 Södra in the 1980s and early 1990s. The club currently plays in Division 2 Södra Götaland which is the fourth tier of Swedish football. They play their home matches at the Västra Mark IP in Karlskrona. Their attendance record is the 3,893 spectators against Vastra Frolunda IF in 1981. The club's best finish came in the same year when the first team finished in fourth place in Division 2 Södra which was at that time the Swedish second tier..
Since October 31st 2012 the club has changed name to FK Karlskrona when merging Karlskrona AIF and Lyckeby GoIF.