In the title compound, C(24)H(15)NO(3)S, the dihedral angle between the phenyl ring and the carbozole system is 74.91 (6)°. The S atom exhibits a distorted tetra-hedral geometry [N-S-C = 104.85 (8)°; O-S-O = 119.59 (9)°]. The crystal structure is established by weak inter-molecular π-π inter-actions [centroid-centroid distances = 3.583 (2)-3.782 (2) Å].