(1)This section applies for the purpose of determining whether condition A in section 129(2) is met by a multinational group in an accounting period (“the qualifying period”) where its composition has changed—
(a)in that period, or
(b)during the previous 4 accounting periods (“the testing period”).
(2)Reference in subsection (1) to a change in the composition of a multinational group includes its formation as a result of the acquisition by one entity of ownership interests in another.
(3)Where a member of the multinational group was not a member of any consolidated group in one or more of the accounting periods in the testing period—
(a)its revenues for those accounting periods are to be determined by reference to its financial statements or any consolidated financial statements in which its revenue is included (and, if necessary, apportioned on a just and reasonable basis to those accounting periods), and
(b)those revenues are to be treated as forming part of the revenues of the multinational group in those periods (whether or not the group existed in those periods).
(4)Where a multinational group is the result of a merger of two or more consolidated groups in the qualifying period or the testing period, for each accounting period of those periods in which they were separate groups, add together the revenues of each consolidated group for that period (determined by reference to the consolidated financial statements of the ultimate parent of each group and if necessary, apportioned on a just and reasonable basis to the accounting period of the merged group) to determine whether the threshold in section 129(4) is met for that period.
(5)For the purposes of this section “merger” means any arrangement that results in two or more consolidated groups becoming a single consolidated group.