The La Liga Argentina de Básquet (abbreviated "LLA", and literally in English "The Argentine Basketball League"), previously known as the Torneo Nacional de Ascenso (abbreviated "TNA", and literally in English "National Promotion Tournament") is the second division of the Argentine basketball league system.

The La Liga's predecessor is the Torneo Federal de Básquetbol, which became the third division when the LLA was created in 1992.

In the first stage, teams from the same division compete in a double round-robin format, with standings determined by a points system.

Teams from the Center North and South Divisions will play two extra inter-zone matches.

A new double round-robin series of matches take place, with the final standings in each conference determined by the same points system of the first stage.