The BBL Championship reverted to a four-game series format, for the first time since the 2006–07 season, for a 36-game regular season played across 29 Rounds between September 2022 to April 2023.

Note: Cup MVP: Sam Dekker The BBL Trophy retained the same 16-team bracket format as introduced for the 2018–19 season.

The ten BBL teams were drawn in the first round by six invited teams; St Mirren from the Scottish Basketball Championship, Basketball Wales, and Worthing Thunder, Derby Trailblazers, Nottingham Hoods and Thames Valley Cavaliers from the National Basketball League.

Note: Trophy MVP: Jeremiah Bailey The quarterfinal matchups and tip-off times were confirmed by the league, on 23 April 2023.

Each tie in the quarterfinals and semifinals phase are played over two legs.