755Conditions relating to the old asset and its realisationU.K.
(1)The old asset must have been a chargeable intangible asset of the company throughout the period during which it was held by the company (but see subsection (5)).
(2)The proceeds of realisation of the old asset must exceed—
(a)the cost of the asset,
(b)in the case of a part realisation, the appropriate proportion of the cost of the asset (see section 759(1) and (2)), or
(c)in the case of the realisation of an asset that has previously been the subject of a part realisation, the adjusted cost of the asset (see section 759(3)).
(3)In subsection (2) “the cost of the asset” means the total capitalised expenditure on the asset recognised for tax purposes.
(4)The condition in subsection (2) is met if the old asset has no cost as defined in subsection (3).
(5)Subsection (6) applies if the old asset was a chargeable intangible asset of the company—
(a)at the time of its realisation, and
(b)for a substantial proportion of the period during which it was held by the company, but not for the whole of that period.
(6)The same proportion of the asset is treated for the purposes of this Chapter as if it were a separate asset in relation to which the condition in subsection (1) was wholly met.
(7)Any apportionment necessary for the purposes of subsections (5) and (6) must be made on a just and reasonable basis.