In the title compound, C(13)H(11)Cl(2)NO(2)S, the dihedral angle between the aromatic rings is 76.62 (10)° and the C-S-N-C linkage between the rings adopts a gauche conformation [torsion angle = -51.4 (2)°]. A weak intra-molecular C-H⋯O inter-action closes an S(6) ring. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops.