In the mol-ecule of the title compound, C(20)H(17)NP(+)·Cl(-), the coordination around the P atom is slightly distorted tetra-hedral. In the crystal structure, inter-molecular C-H⋯N and C-H⋯Cl hydrogen bonds link the mol-ecules. There is a π-π contact between the phenyl rings [centroid-centroid distance = 3.702 (3) Å].