Note: T1: Clubs from Thai League 1; T2: Clubs from Thai League 2; T3: Clubs from Thai League 3; TS: Clubs from Thailand Semi-pro League; TA: Clubs from Thailand Amateur League. Qualification round The qualification round of the 2025–26 Thai FA Cup featured 25 clubs, comprising 10 clubs from
2025–26 Thai League 2, 33 clubs from
2025–26 Thai League 3, 7 clubs from
Thailand Semi-pro League, and 12 clubs from the
Thailand Amateur League. The draw for this round took place on 29 August 2025. 114 goals were scored in this round.
First round The first round consists of 64 clubs: 31 winners from the qualification round and 33 clubs that automatically advanced. Among the qualification round winners are 5 clubs from T2, 22 from T3, 1 from TS, and 3 from TA. Joining them are 16 clubs from the
2025–26 Thai League 1, who were granted automatic entry as the top-tier league representatives. Additionally, clubs from other leagues received byes directly to the first round, including 4 clubs from the
2025–26 Thai League 2, 6 clubs from the
2025–26 Thai League 3, 3 clubs from the
Thailand Semi-pro League, and 4 clubs from the
Thailand Amateur League. The draw for this round took place on 2 October 2025. 141 goals were scored in this round.
Second round The second round consists of 32 clubs, all securing victories in the first round. This stage features 15 clubs from the T1, 6 clubs from the T2, 9 clubs from the T3, and 2 clubs from the TA. The draw for this round took place on 20 November 2025. 54 goals were scored in this round.
Third round The third round consists of 16 clubs, all securing victories in the second round. This stage features 10 clubs from the T1, 4 clubs from the T2, and 2 clubs from the T3. The draw for this round took place on 25 December 2025. 25 goals were scored in this round.
Quarter-finals The quarter-finals consist of 8 clubs, all securing victories in the third round. This stage features 7 clubs from the T1 and 1 club from the T2. The draw for this round took place on 27 January 2026. 11 goals were scored in this round.
Semi-finals The semi-finals consist of 4 clubs, all from the T1. These clubs progressed to this stage after winning their respective matches in the quarter-finals. The draw for this round took place on 20 April 2026. TBD goals were scored in this round.
Final The final consists of 2 clubs, both from the T1. These clubs progressed to this stage after winning their respective matches in the semi-finals. TBD goals were scored in this round. ==Tournament statistics==