In the title complex, [Co(C(18)H(18)N(2)O(4))(C(2)H(3)O(2))(H(2)O)]·2CH(3)OH, the Co(III) atom is hexa-coordinated by water and acetate groups in the axial positions and by the tetra-dentate Schiff base occupying equatorial positions. These axial bonds are longer than the equatorial bonds to the tetra-dentate Schiff base. Two mol-ecules form a dimer through strong hydrogen bonds from the coordinated water of one mol-ecule to the meth-oxy O atoms of an adjoining mol-ecule. There is extensive intra- and inter-molecular O-H⋯O hydrogen bonding between the coordinated water and acetate ligands and the methanol solvent mol-ecules. In addition, there are weak inter-molecular C-H⋯O inter-actions, which link the mol-ecules into a three-dimensional array.