" (10) For the purposes of this section and sections 171 to 181 [which thus includes schedule 7A], a group remains the same group so long as the same company remains the principal company of the group, and if at any time the principal company of a group becomes a member of another group, the first group and the other group shall be regarded as the same and the question whether or not a company has ceased to be a member of a group shall be determined accordingly ."
“(1)A pre entry loss that accrued to a company before it became a member of the relevant group shall be deductible from a chargeable gain …if that gain is one accruing: (a) on a disposal made by that company before the date on which it became a member of the relevant group (the “entry date”); (b) on the disposal of an asset which was held by that company immediately before the entry date; or (c) on the disposal [of a trading asset acquired from a third party].”
“[41] The deductibility of the losses from the gains depends on the date or dates on which the appellants became members of the "the relevant group" within Sch 7A in relation to each gain.
"[62] It is to be noted that the condition to be fulfilled by subparagraph (b) is that it is "the second group" that is to be the relevant group. It is not that the first group is to be that group. In adding the words "together in pursuance of that subsection with the first group" the draftsman is doing no more, in my view, than acknowledging - in line with the assumption that underlies the paragraph - that as a consequence of the operation of section 170(10) the first group and the second group are, following the takeover of the former by the latter, the same group. The effect of the paragraph is to negate the operation of that subsection so that, as regards the particular losses which are in point, the members of the first group are to be treated as having joined the relevant group at the time of the merger and not before. "[63] What then are the losses to which the paragraph is directed? In my judgement they are the losses which are pre-entry in relation to the second group; they are not the losses which are pre-entry in relation to the first group. I reach that conclusion because, if it were the latter, there would be no need to disapply the operation of section 170(10); paragraph 1(6) would add nothing to the scheme of the Schedule. It is precisely because, as regards losses which have accrued to members of the group while members of that group, there is a need, if the aim of the Schedule - to subject pre-entry losses to restrictions on set off - is to be achieved, to disapply section 170(10) that, in my judgement, paragraph 1(6) was enacted. So regarded, it operates to put losses accruing to companies in a group which is subsequently taken over by another group on the same footing as losses accruing to a single company which is subsequently taken over by a group. That being, as I see it, the purpose of the provision, I see no reason, unless compelled by the words to do so, to construe it as having an effect which goes beyond that purpose. I consider that purpose can be achieved - and the surprising results avoided which I have described paragraph 60 above – by construing the reference to "the relevant group" and subparagraph (b) as confined to losses of the acquired (the first) group which are not pre-entry losses in relation to that group immediately before its acquisition by the acquiring (second) group."
"[25] ... first to identify every group of which the loss-making company is, or has been a member. Then you apply the rules in paragraph 9 Schedule 7A to identify "the relevant group" and ask when the loss-making company became a member of "the relevant group"
"[29] The company starts off on the basis that it has realised a loss. By reference to the loss it can identify the relevant group and when the company becomes a member of the group by reference to which it is a pre-entry loss. In a case to which section 170(10) applies this will identify a single group as the relevant group, notwithstanding the merger. From the perspective of a company within the GL group before the merger with the GH group the relevant group will be the GL group. From that perspective the loss-making companies have already identified the pre-entry losses by reference to the date of entry into the GL group. "[30] Against that background ... paragraph 1(6) is a provision in which the draftsman deconstructed in condition (a) the merged group into its constituent elements of "the first group" and "the second group"
“Further the date of entry of L and P into the GL group was not changed by the GL group becoming a member of the GH group. As explained in the second step the pre entry losses of L and P were in relation to the GL group and are identified as losses incurred before the date of entry into the GL group. That remains the case after the GL group was taken over by the GH group, unless altered by the deeming provisions of paragraph 1(6)”