18(1)If after 6th April 1965 a company which is a close company as defined in Schedule 18 to this Act transfers an asset to any person otherwise than by way of a bargain made at arm's length and for a consideration of an amount or value less than the market value of the asset an amount equal to the difference shall be apportioned among the issued shares of the company, and the holders of those shares shall be treated in accordance with the following provisions of this paragraph.
(2)For the purposes of the computation under Schedule 6 to this Act of a gain accruing on the disposal of any of those shares by the person owning them on the date of transfer an amount equal to the amount so apportioned to that share shall be excluded from the expenditure allowable as a deduction under paragraph 4(1 )(a) of that Schedule from the consideration for the disposal.
(3)If the person owning any of the said shares at the date of transfer is itself a close company as so defined an amount equal to the amount apportioned to the shares so owned under sub-paragraph (1) above to that close company shall be apportioned among the issued shares of that close company, and the holders of those shares shall be treated in accordance with sub-paragraph (2) above, and so on through any number of close companies.