Rumours of the new league began in 2018, when the Gibraltar FA announced plans for a single tier format in its league constitution for the 2018–19 Gibraltar Premier Division.
[2] On 1 August 2019, the GFA confirmed details of the restructure of domestic football in Gibraltar, and the format of the new 16 team league.
At the end of the regular season, only the top 6 progressed to the next stage, entering the GFL Championship Group to decide the champion.
[7] Of the 17 teams that formed the initial league, three founder teams withdrew before the inaugural season started: Gibraltar Phoenix, Gibraltar United, and Leo.
Additionally, Olympique 13 were expelled from the league after forfeiting the first two matches of the 2019-20 season.