Company ceasing to be party to certain contracts
660Contract relating to holding in OEIC, unit trust or offshore fund
(1)This section applies if—
(a)a company is a party to a relevant contract in two successive accounting periods,
(b)section 587 (contract relating to holding in OEIC, unit trust or offshore fund) applies in relation to the relevant contract for the second of those periods but not the first, and
(c)immediately before the beginning of the second period the relevant contract was a chargeable asset.
(2)The company must bring into account for the accounting period in which it ceases to be a party to the contract the amount of any chargeable gain or allowable loss which would have been treated as accruing to it on the assumptions in subsection (3).
(3)Those assumptions are that—
(a)the company disposed of the relevant contract immediately before the beginning of the second period mentioned in subsection (1), and
(b)the disposal was for consideration of an amount equal to the value (if any) given to the relevant contract in the accounts of the company at the end of the first such period.
661Contract which becomes derivative contract
(1)This section applies if—
(a)a company is a party to a relevant contract which (not having been a derivative contract) becomes a derivative contract, and
(b)immediately before the relevant contract becomes a derivative contract it is a chargeable asset.
(2)The company must bring into account for the accounting period in which it ceases to be a party to the relevant contract the amount of any chargeable gain or allowable loss which would have been treated as accruing to it on the assumptions in subsection (3).
(3)Those assumptions are that—
(a)the company disposed of the relevant contract immediately before the relevant time, and
(b)the disposal was for consideration of an amount equal to the notional carrying value of the relevant contract at that time.
(4)In this section “the relevant time” means the time when the relevant contract becomes a derivative contract.
(5)Section 622(4) (meaning of “notional carrying value”) applies for the purposes of this section.