In the crystal structure of the title compoud, C14H18BrNO4, mol-ecules are linked by a strong O-H⋯O hydrogen bond and weaker C-H⋯O inter-actions. The benzene ring makes dihedral angles of 3.67 (3) and 72.63 (3)° with the carb-oxy-lic acid group and the nitro group, respectively.