After paragraph 45G insert—
Treatment of net gains and losses on terminal exercise of option
(45H)
(1) This paragraph applies where—
(a) a derivative contract is one to which paragraph 45D applies for an accounting period,
(b) rights that fall to be treated as comprised in the derivative contract are exercised to any extent in the accounting period, and
(c) those rights are rights to acquire shares.
(2) In any such case—
(a) sub-paragraph (3) has effect in relation to a disposal of the asset representing the creditor relationship mentioned in paragraph 45D(1)(b) (“the associated creditor relationship”), and
(b) sub-paragraph (4) has effect in relation to a disposal of all or any of the shares (“the relevant shares”) acquired—
(i) as a result of the exercise of rights mentioned in sub-paragraph (1)(b), but
(ii) otherwise than as a result of a disposal of the associated creditor relationship.
(3) For the purpose of computing any chargeable gain accruing to the company on a disposal of the asset representing the associated creditor relationship, the sums allowable as a deduction under section 38(1)(a) of the Taxation of Chargeable Gains Act 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.
(4) For the purpose of computing any chargeable gain accruing to the company on a disposal of all the relevant shares, the sums allowable as a deduction under section 38(1)(a) of the Taxation of Chargeable Gains Act 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,
and, in the case of a part disposal of those shares, section 42(2) of that Act shall have effect accordingly.
(5) If the amount of the excess in sub-paragraph (3)(b) or (4)(b) is greater than the amount of expenditure allowable under section 38(1)(a) of the Taxation of Chargeable Gains Act 1992, the amount of the excess that cannot be deducted from the expenditure so allowable shall, for the purpose mentioned in sub-paragraph (3) or (4) (as the case may be), be added to the amount of the consideration for the disposal of the shares.
(6) In this paragraph—
G is the sum of—
the initial carrying value of the derivative contract, and
the amounts 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, so far as referable, on a just and reasonable apportionment, to the shares acquired as a result of the exercise of rights mentioned in sub-paragraph (1)(b);
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, so far as so referable.
(7) For the purposes of sub-paragraph (6)—
(a) the “initial carrying value” of the derivative contract is the amount treated in accordance with section 94A(2) of the Finance Act 1996 as the carrying value of the derivative contract at the time the company became party to the loan relationship;
(b) a “relevant accounting period” is—
(i) the accounting period in which the disposal in question is made, or
(ii) any previous accounting period.
Treatment of credits and debits on terminal exercise of option
(45HA)
(1) This paragraph applies where—
(a) a company is a party to a derivative contract in an accounting period otherwise than by virtue of section 94A(2)(b) of the Finance Act 1996,
(b) the derivative contract is an option,
(c) rights comprised in the derivative contract are exercised to any extent in that accounting period, and
(d) those rights are rights to acquire shares.
(2) In any such case, for the purpose of computing any chargeable gain accruing to the company on a disposal by it of all the shares so acquired, the sums allowable as a deduction under section 38(1)(a) of the Taxation of Chargeable Gains Act 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,
and, in the case of a part disposal of those shares, section 42(2) of that Act shall have effect accordingly.
(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 the Taxation of Chargeable Gains Act 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 of the shares.
(4) In this paragraph—
G is the sum of the credits brought into account under paragraph 14(2) in respect of the derivative contract in each relevant accounting period so far as referable, on a just and reasonable apportionment, to the shares acquired as a result of the exercise of the rights mentioned in sub-paragraph (1)(b);
L is the sum of the debits brought into account under paragraph 14(2) in respect of the derivative contract in each relevant accounting period, so far as so referable.
(5) For the purposes of sub-paragraph (4), a “relevant accounting period” is—
(a) the accounting period in which the disposal in question is made, or
(b) any previous accounting period.