CFM55060 - Derivative contracts: chargeable gains on derivates: S641 treatment: examples - HMRC internal manual - GOV.UK
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On 1 February 2008, in its accounting period ending 31 December 2008, a company, X Ltd, acquires a convertible security issued by an unrelated trading company, Z plc. The security matures on
30 June 2009, and is convertible into ordinary shares in Z plc.
Under FRS26 (an accounting standard that lapsed with effect from 1 January 2015), the company accounted separately for the host contract and for the embedded option, initially recognising
the option at a fair value of £500,000. At 31 December 2008, the option has a fair value of £600,000. However, on maturity in 2009 the company does not exercise the conversion option,
instead redeeming the security for cash. (This accounting treatment might be permitted by IAS39, but if a company applies either FRS102 or IAS9, it would not dis-embed the derivative but
would most likely instead account for the whole instrument at fair value, so these rules would not come into play.)
Note that the shares would not be treated as excluded property because none of the conditions A to E in S591 can be met by a derivative embedded in a host loan relationship. It follows that
the embedded derivative is not thereby excluded from the operation of the derivative contracts rules. In this scenario, the embedded option is treated as a relevant contract by CTA09/S585,
and this contract is a derivative contract that meets the conditions of S645 (CFM55220). In the year ended 31 December 2008, a credit of £100,000 arises on the option under S595. This credit
is brought into account in 2008 as a chargeable gain, by virtue of S641.
In the year ended 31 December 2009, the option expires without being exercised, giving rise to a debit of £600,000 for 2009. This is brought into account as a capital loss. X Ltd may elect
to carry back part of the loss against the gain in the previous year.
The facts are as in the first example, except that on 1 March 2008 X Ltd acquires a 20% shareholding in Z plc.
As a preliminary point, it is necessary to consider whether S642 applies; if it does then s641 does not apply.
the substantial shareholdings exemption (SSE) would apply to that gain.
In the year ended 31 December 2008, we must deem a disposal of the option at 31 December. At that time, X Ltd has not held a substantial shareholding in Z plc for 12 months, so SSE would not
apply. S641 applies to bring a chargeable gain of £100,000 into account.
In the year ended 31 December 2009, it is necessary to deem a disposal of the option at 31 December 2009 (even though, in fact, the option ceased to exist at an earlier date). At that time,
X Ltd has held more than 10% of the shares in Z plc for a continuous period of 12 months in the previous two years. Provided all other conditions were met, SSE would apply. For this
accounting period, S642 disapplies S641, with the result that the loss of £600,000 is not brought into account.