The competition format consisted of two stages: a regular season, comprising two phases, and the play-offs.
In the first phase of the regular season, the twelve participating teams compete against each other in a double round-robin system, with home and away matches.
Again, teams in each group compete against each other in a double round-robin system, with home and away matches.
The play-offs are disputed as a single-elimination tournament, with fixtures determined by each team's classification in the previous round, and comprise three knockout rounds (quarter-finals, semi-finals and finals) played in a best-of-five system.
[1] Maia Basket Escapeforte avoided relegation after the resign of Atlético Clube de Portugal to promote.