Teams from the Regional Amateur League competed in this round for a place in the first round. All matches were played on 3 September 2014, on the first team's home ground.
The top five teams from the 2013–14 Süper Lig joined the 27 winners from the third round for the group stage. The group draw commenced on 7 November 2014, as 32 teams were split into eight groups of four. This stage was a round-robin tournament with home and away matches, in the vein of UEFA European competitions' group stages. Group stage matches began on 2 December 2014 and concluded on 5 February 2015. The winners and runners-up of the two groups advanced to the round of 16.[2]
Group winners and runners-up faced each other in the round of 16. All matches were played from 10 to 12 February 2015. One-legged matches were played in the group winners' home ground. Extra time and a penalty shoot-out would commence if the score was level at the end of 90 minutes.[3]
The winners of the round of 16 matches were drawn against each other via a seeding system based on their previous seasons' league performances. The quarter-finals were played in two-legged matches.
The semi-finals were played in two-legged matches. All teams remaining in competition were Süper Lig teams, playing in the top flight of Turkish football league system.