In the crystal structure of the title compound, 2C(22)H(24)P(+)·I(8)(2-), the I(8)(2-) anion is located on a crystallographic inversion centre and consists of two tri-iodide anions linked by di-iodine at angles of 89.92 4)° to form a planar `Z'-shaped dianion. The octaiodides are linked via long-range interactions [3.877 11) ] into infinite polyiodide ribbons. This is the first example of a structure containing an [(o-tolyl)(3)PMe](+) cation, and the C(Me)-P-C-C(Me) torsion angles of -54.0 11), -51.3 11) and -48.2 11)° indicate that the configuration is exo(3).
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