In the first stage the sixteen seeded teams were drawn into four groups of four teams each, with each team playing once against the twelve clubs from the other three groups. After each team has played twelve matches, the top two teams of each group qualified for the quarter-final stage.[3]
After the completion of the first stage, the two clubs with the lowest number of points, regardless of the group, were relegated to the Campeonato Paulista Série A2.
Quarter-finals and semi-finals were played in a single match, with the best placed team playing at home.[2]
The finals were played in a two-legged home and away fixture, with the best placed team playing the second leg at home.[2]
In case of a draw in any knockout stage, the match was decided by a penalty shoot-out.[2]
The broadcasting rights of the 2025 Campeonato Paulista were acquired by Record TV for the fourth consecutive year, with their streaming app Play Plus also transmitting the matches live. Aside of that, the streaming platforms HBO Max (owned by TNT) and CazéTV (in YouTube) also broadcast the matches live.[4][1]
