In the title polymeric complex, [Sn(C(6)H(5))(3)(C(14)H(16)NO(3))](n), adjacent triphenyl-tin cations are bridged by the N-cyclo-hexyl-phthalamate anion through the carboxyl-ate and carbonyl O atoms, forming a helical chain running along the b axis. The amide N atom is a hydrogen-bond donor to the uncoordinated carboxyl-ate O atom. The geometry at the five-coordinate Sn atom is trans-C(3)SnO(2) trigonal-bipyramidal.