18. After paragraph 45H insert—
45HZA.—(1) This paragraph applies where—
(a)a derivative contract is one to which paragraph 45F (creditor relationships: embedded derivatives which are exactly tracking contracts for differences) applies for an accounting period, and
(b)the asset representing the original relationship mentioned in paragraph 45F(1)(a) is disposed of in the accounting period.
(2) For the purpose of computing any chargeable gain accruing to the company on the disposal, the sums allowable as a deduction under section 38(1)(a) of TCGA 1992 (acquisition costs) shall—
(a)if G exceeds L, be increased by the amount of that excess,
(b)if L exceeds G, be reduced by the amount of that excess.
(3) If the amount of the excess in sub-paragraph (2)(b) is greater than the amount of expenditure allowable under section 38(1)(a) of TCGA 1992, the amount of the excess that cannot be deducted from the expenditure so allowable shall, for the purpose mentioned in sub-paragraph (2), be added to the amount of the consideration for the disposal.
(4) Sections 37 and 39 of TCGA 1992 do not apply in relation to the disposal.
(5) In this paragraph—
G is the sum of—
the relevant Chapter 2 amount, and
the amount of any chargeable gains treated as accruing to the company under paragraph 45A(4)(a) in respect of the derivative contract in each relevant accounting period, and
L is the sum of the amounts of any allowable losses treated as accruing to the company under paragraph 45A(4)(b) in respect of the derivative contract in each relevant accounting period.
(6) For the purposes of paragraph (5)—
(a)the relevant Chapter 2 amount means the amount by which the carrying value of the loan-contract host contract at the date of the disposal exceeds the carrying value of that contract at the date on which the company became party to the original relationship;
(b)a relevant accounting period is—
(i)the accounting period in which the disposal is made, or
(ii)any previous accounting period.”.