Old format Provincial phase Each province held a provincial phase, they were followed by amateur clubs without a limit of participants with different competition formats, the difference in the format was due to the different number of participants in each province. Furthermore, the teams that qualified from the provincial phase competed in national phase.
National phase A total of 80 teams entered this phase. • First round: 80 teams were divided into sixteen groups of 5. Each group was played on a home tournament basis. Winner and runner-up of each group advanced to the second round. • Second round: 32 teams which were the winners and runners-up from each group of the first round. They were divided into eight groups of 4 and each winner and runner-up advanced to the third round. • Third round: 16 teams were divided into two groups. Each group was played on a home tournament basis. Same as previous round, the winner and runner-up of each group advanced to the fourth round. • Fourth round: 8 teams were divided into two groups. The three best teams of each group were promoted to the
Liga 2. The winner of each group also advanced to the final. • Final: The 2 group winners from the fourth round played in the final match. The final was played as a single match.
New format 2024–25 season The league format was announced on 7 November 2024. There was no provincial or national phase. Instead, there were four rounds: • Regular round: 16 teams were divided into two group of eight, with the round being played in a centralized format of
double round-robin matches. The top three teams of each group qualified for the championship round, while the remaining teams qualified for the relegation play-offs. • Relegation play-offs: 10 teams were divided into two groups of five teams, with the round being played in a centralized format of
single round-robin matches. The bottom three teams of each group were relegated to the
2025–26 Liga 4. • Championship round: 6 teams were divided into two groups of three teams, with the round being played in home-and-away
round-robin matches. The group winners advanced to the final and promoted to the
2025–26 Liga 2. The group runners-up entered to the promotion play-off. • Promotion play-off & Final: The play-off and final were played as a single match. If tied after regulation time, it went to extra time and a penalty shoot-out to decide the winning team if necessary. The winner of the play-off match was promoted to the
2025–26 Liga 2, while the winner of the final match was crowned as champions.
2025–26 season • Competition :24 clubs are divided into four groups: Group 1, Group 2, Group 3, and Group 4. Each group consists of six clubs, and teams will face each other three times in a three-legged competition format, for a total of 15 matches. Teams receive three points for a win, one point for a draw, and no points for a loss. Teams are ranked based on total points, then head-to-head record, then goal difference, and then goals scored. If still tied, fair play points and then a draw will determine the rankings. • Promotion and Relegation :The top two teams from each group will advance to the knockout stage, while teams ranked 3 and 4 will remain in the Nusantara League for the next season. :The fifth-ranked team from each group will compete in the relegation play-offs, while the sixth-ranked team from each group will be directly relegated to Liga 4. • Knockout round :
See the knockout round format ==Teams==