“(1) In this Chapter “wasting asset” means an asset with a predictable life not exceeding 50 years but so that— (a) freehold land shall not be a wasting asset whatever its nature, and whatever the nature of the buildings or works on it; (b) “life”, in relation to any tangible movable property, means useful life, having regard to the purpose for which the tangible assets were acquired or provided by the person making the disposal; (c) plant and machinery shall in every case be regarded as having a predictable life of less than 50 years, and in estimating that life it shall be assumed that its life will end when it is finally put out of use as being unfit for further use, and that it is going to be used in the normal manner and to the normal extent and is going to be so used throughout its life as so estimated; (d) a life interest in settled property shall not be a wasting asset until the predictable expectation of life of the life tenant is 50 years or less, and the predictable life of life interests in settled property and of annuities shall be ascertained from actuarial tables approved by the Board. (2) In this Chapter “the residual or scrap value”, in relation to a wasting asset, means the predictable value, if any, which the wasting asset will have at the end of its predictable life as estimated in accordance with this section. (3) The question what is the predictable life of an asset, and the question what is its predictable residual or scrap value at the end of that life, if any, shall, so far as those questions are not immediately answered by the nature of the asset, be taken, in relation to any disposal of the asset, as they were known or ascertainable at the time when the asset was acquired or provided by the person making the disposal.”
“(1) Subject to the provisions of this section, no chargeable gain shall accrue on the disposal of, or of an interest in, an asset Lord Howard’s Executors v HMRC which is tangible movable property and which is a wasting asset. (2) Subsection (1) above shall not apply to a disposal of, or of an interest in, an asset— (a) if, from the beginning of the period of ownership of the person making the disposal to the time when the disposal is made, the asset has been used and used solely for the purposes of a trade, profession or vocation and if that person has claimed or could have claimed any capital allowance in respect of any expenditure attributable to the asset or interest under paragraph (a) or paragraph (b) of section 38(1); or (b) if the person making the disposal has incurred any expenditure on the asset or interest which has otherwise qualified in full for any capital allowance. (3) In the case of the disposal of, or of an interest in, an asset which, in the period of ownership of the person making the disposal, has been used partly for the purposes of a trade, profession or vocation and partly for other purposes, or has been used for the purposes of a trade, profession or vocation for part of that period, or which has otherwise qualified in part only for capital allowances— (a) the consideration for the disposal, and any expenditure attributable to the asset or interest by virtue of section 38(1)(a) and (b), shall be apportioned by reference to the extent to which that expenditure qualified for capital allowances, and (b) the computation of the gain shall be made separately in relation to the apportioned parts of the expenditure and consideration, and (c) subsection (1) above shall not apply to any gain accruing by reference to the computation in relation to the part of the consideration apportioned to use for the purposes of the trade, profession or vocation, or to the expenditure qualifying for capital allowances … .”
“There is no definition of plant in the Act: but, in its ordinary sense, it includes whatever apparatus is used by a business man for carrying on his business, — not his stock-in-trade which he buys or makes for sale; but all goods and chattels, fixed or moveable, live or dead, which he keeps for permanent employment in his business: see Blake v Shaw (1860) Johns. 732.”
“The word “plant” has frequently been used in fiscal and other legislation. It is one of a fairly large category of words as to which no statutory definition is provided (“trade,” “office,” even “income” are others), so that it is left to the court to interpret them. It naturally happens that as case follows case, and one extension leads to another, the meaning of the word gradually diverges from its natural or dictionary meaning. This Lord Howard’s Executors v HMRC is certainly true of “plant.”
“When Lindley L.J. used the phrase “permanent employment in the business” he was using it in contrast to stock-in-trade which comes and goes, and I do not think that he meant that only very long-lasting articles should be regarded as plant. But the word does, I think, connote some degree of durability and I would find it difficult to include articles which are quickly consumed or worn out in the course of a few operations. There may well be many borderline cases, but these articles have an average Lord Howard’s Executors v HMRC life of three years, and if their cost can fairly be called capital expenditure I cannot refuse to them the description of “plant” unless the Act discloses some special reason for doing so.”
“It is important to notice the various discriminations which are stated or implied in this description. First, it excludes anything which is not used for carrying on the business. Secondly, it excludes stock-in-trade both expressly and because, although used for the purposes of the business, its use lacks permanence. Thirdly, it excludes things which are not 'apparatus ... goods and chattels, fixed or moveable, live or dead' or not employed in the business. This excludes the premises or place in or upon which the business is conducted. Before going any further I must say something about the third distinction and the way in which the courts in subsequent cases have refined the boundary between plant and premises. The words 'apparatus ... goods and chattels, fixed or moveable, live or dead' might suggest that the distinction turns upon whether the item is a chattel or fixture on the one hand or a building or structure on the other. This was the view of the minority in the House of Lords in IRC v Barclay, Curle & Co Ltd[1969] 1 WLR 675 , 45 TC 221. But the majority held that even a building or a structure (in that case a dry dock) could be plant if it was more appropriate to describe it as apparatus for carrying on the business or employed in the business than as the premises or place in or upon which the business was conducted. … It will be seen, therefore, that although the three distinctions in Yarmouth v France(1887) 19 QB 647 each involves a test which can be called functional, they are subtly different from each other. If the item is neither stock-in-trade nor the premises upon which the business is conducted, the only question is whether it is used for carrying on the business. I shall call this the 'business use' test. However, under the second distinction, an article which passes the 'business use' test is excluded if such use is as stock-in-trade. And under the third distinction, an item used in carrying on the business is excluded if such use is as the premises or place upon which the business is conducted. The fact that an item may pass the 'business use' test but fail what I may call the 'premises' test is central to this case.”