(1) A building society shall not pay a director remuneration (whether as director or otherwise) free of income tax, or otherwise calculated by reference to or varying with the amount of his income tax, or to or with any rate of income tax.
(2) Any rule of a building society and any provision of any contract, or in any resolution of a building society, for payment to a director of remuneration falling within subsection (1) above has effect as if it provided for payment, as a gross sum subject to income tax, of the net sum for which the rule, contract or resolution actually provides.