[1][2] The league is a corporation where president Antonio Martín is responsible for its management, whilst the member clubs act as shareholders.

The two lowest placed teams in Liga ACB are relegated to the Primera FEB, and the top team from the Primera FEB promoted to Liga ACB, with an additional club promoted after a series of playoffs involving the second, third, fourth, fifth, sixth, seventh, eighth and ninth placed clubs.

[7] However, Canarias finally played in ACB after buying the berth in the league of Lucentum Alicante, previously sold to the association.

In 2014 and 2015, CB Tizona, also Ford Burgos by sponsorship reasons, did not promote despite achieving the place two years in a row.

[11] On 24 April 2016, the National Commission of the Markets and the Competence argued that the inbound impedes, in an "unjustified, disproportionate and discriminatory" way, access of new clubs to Liga ACB.

[16][17] In April 2017, the National Commission for Markets and Competition declared the entering inbound and the deposit for the regulation of promotions and relegations as illegal, as they consider it "unjustified, discriminatory and excessive" and imposed a fine of €400,000 to the ACB.

Also, the ACB approved to establish a negotiation plan with the CSD and the FEB regarding the number of participating teams and the conditions to access to the competition in the next seasons.

Also, the ACB agreed to continue negotiations with the CSD, the FEB and the CNMC to try to establish by mutual agreement new conditions for promotion.

In view of the possibility of reaching an agreement that establishes economic and financial requirements in a consensual way before 5 July, the Assembly agreed to establish two new access criteria, provided that there was no pronouncement of the National Court on the precautionary measures regarding the resolution of the National Court, nor agreement with the different bodies that replace it.

The ACB had also reached a principle of agreement with FEB and CSD regarding a reduction of competition to 16 clubs in 2019 and the model of promotions and relegations in the coming seasons.

However, this text has not obtained the necessary support of the clubs in the General Assembly and has not been approved, agreeing to continue the negotiations to find the model of competition appropriate to the interests of the teams overall.

[53] Since several years ago, the Liga ACB is the European domestic league with the highest average attendance,[57] always surpassing the 6,000 spectators per game since the 2002–03 season.