In the title mononuclear complex, [Ni(C(13)H(19)N(2)O(2))(NCS)], the Ni(II) ion is coordinated by one phenolate O atom, one imine N atom, and one amine N atom of a 2-[2-(isopropyl-amino)-ethyl-imino-meth-yl]-5-meth-oxy-phenolate Schiff base ligand, and by one N atom of a thio-cyanate ligand, forming a slightly distorted square-planar geometry.