The title compound, C(11)H(14)ClNO(3), was prepared by the condensation of equimolar quanti-ties of 5-chloro-salicyl-aldehyde and 2-amino-2-methyl-propane-1,3-diol in methanol. In the crystal, it exists in the zwitterionic form, with nominal proton transfer from the phenol group to the imine N atom. This results in the formation of an intra-molecular N-H⋯O hydrogen bond, which generates an S(6) ring. Inter-molecular O-H⋯O hydrogen bonds arise from the hy-droxy groups, forming (001) sheets.