The 2017–18 Iraqi First Division League.
Al-Karkh and Erbil secured the two promotion spots for the 2018–19 Iraqi Premier League, with Al-Karkh being the champions due to having more points than Erbil in the final stage.
Teams from all over Iraq participated in preliminary qualifications for the final stage, which consisted of 12 teams split into two groups.
The winners of the two groups would be promoted.
All matches played in Erbil.