In the anion of the title compound, (C(16)H(36)N)[Cd(C(5)H(8)NS(2))(C(12)H(27)O(3)SSi)I], the Cd atom is four-coordinated by S,S'-chelating dithio-carbamate, S-donating silanethiol-ate and iodide ligands in a distorted tetrahedral environment . Inter-molecular C-H⋯ S and C-H⋯I inter-actions between cations and anions are present. Two C atoms of a tert-butyl group are disordered over two positions; the site occupancies are ca 0.65 and 0.35.