The asymmetric unit of the title compound, C(11)H(12)ClN(3)O(3)S, contains two independent mol-ecules with different conformations in which the benzene ring and the thio-urea fragment form dihedral angles of 87.28 (12) and 66.44 (10)°. The O atom of the thio-amide group is involved in bifurcated N-H⋯O intra- and inter-molecular hydrogen bonding; the latter inter-action links the independent mol-ecules into a dimer. In the crystal, N-H⋯S inter-actions link the mol-ecules into chains propagating along the c axis.