The 2015–16 Serie B was the 84th season since its establishment in 1929. A total of 22 teams contested the league: 16 returning from the 2014–15 season, 4 promoted from Lega Pro, and 2 relegated from Serie A. Vacancies created by the bankruptcy of Serie A-relegated Parma and the demotion of Catania to Lega Pro due to match fixing allowed Brescia to remain in the league despite being relegated. Furthermore, Teramo was due to participate to Serie B but due to the allegations for match-fixing, the Courts decided to relegate Teramo in the last place of Lega Pro of the previous season. After the demotion of Catania, Virtus Entella was readmitted into Serie B as the best team of the relegated teams from the previous season. Furthermore, Ascoli was promoted into the championship after finishing second in Lega Pro Group B, second after Teramo before being stripped of the title for the match-fixing scandal.