The asymmetric unit of the title compound, C(6)H(16)N(+)·C(3)H(2)N(3)S(3) (-), contains two independent ion pairs. The 2,4,6-trithioxo-1,3,5-triazinan-1-ide anion features an almost planar six-membered ring (r.m.s. deviations = 0.009 and 0.018 Å) having exocyclic double-bond S atoms. The anions inter-act by N-H⋯S hydrogen bonds to generate a chain running along [110]. The triethyl-ammonium cations are hydrogen bonded to the anions with the ammonium H atom forming a hydrogen bond to the negatively-charged N atom of the anion. In the crystal structure, both triethyl-ammonium cations are disordered over two orientations with equal occupancies.