The season started on 4 October 2019 and played its last games on 9 March 2020 due to the COVID-19 pandemic.
On 12 March 2020, the ABA League Assembly temporarily suspended its competitions due to the COVID-19 pandemic.
[1] On 27 May 2020, the ABA League Assembly canceled definitely its competitions due to the COVID-19 pandemic.
[2] Crvena zvezda mts was the defending champion and as a consequence of the COVID-19 pandemic, the ABA League Assembly decided not to recognize any team as the champion for the season.
A total of 12 teams will contest the league, including 11 sides from the 2018–19 season and one promoted from the 2018–19 Second Division.