In the title complex, [CuTb(C19H20N2O4)(NO3)3]·CH3COCH3, the CuII atom is four-coordinated by two O atoms and two N atoms from the deprotonated Schiff base in a square-planar geometry, while the TbIII atom is ten-coordinated by four O atoms from the deprotonated Schiff base and six O atoms from three bidentate nitrate anions. The compound is isostructural with the previously reported GdIII analogue [Elmali & Elerman (2004 ). Z. Naturforsch. Teil B, 59, 535–540], which was described in the space group P1 with two formula units in the asymmetric unit. The crystal stucture is, in fact, centrosymmetric and is described here in the space group P with one formula unit in the asymmetric unit.