18(1)This paragraph applies for any accounting period where—
(a)a debtor relationship of a close company is represented by a relevant discounted security issued by the company; and
(b)at any time in or before that period that security has been beneficially owned by a person who at the time was—
(i)a participator in the company;
(ii)an associate of such a participator; or
(iii)a company of which such a participator has control.
(2)The debits falling in the case of the company to be brought into account for the purposes of this Chapter in respect of the loan relationship shall be adjusted so that no amount is brought into account in respect of the difference between—
(a)the issue price of the security, and
(b)the amount payable on redemption,
for any accounting period before that in which the security is redeemed.
(3)In this paragraph “relevant discounted security” has the same meaning as in Schedule 13 to this Act; and the provisions of that Schedule shall apply for the purposes of this paragraph for determining the difference between the issue price of a security and the amount payable on redemption as they apply for the purposes of paragraph 3(3) of that Schedule.
(4)In this paragraph—
“associate” has the meaning given in section 417(3) and (4) of the Taxes Act 1988;
“control” shall be construed in accordance with section 416(2) to (6) of that Act; and
“participator” means a person who, by virtue of section 417 of that Act, is a participator in the company for the purposes of Part XI of that Act, other than a person who is a participator for those purposes by virtue only of his holding a relevant discounted security issued by the company.
(5)In determining whether a person who carries on a business of banking is a participator in a company for the purposes of this paragraph, there shall be disregarded any securities of the company acquired by him in the ordinary course of his business.