In the crystal structure of the title compound, C(9)H(8)BrNO(3)S, the thia-zine ring is in the twisted form. In the crystal, pairs of inter-molecular C-H⋯O hydrogen bonds form inversion dimers with an R(2) (2)(8) ring motif. Weak inter-molecular C-H⋯Br and C-H⋯π inter-actions are also present.