15(1)Where a qualifying holding company has an accounting period (“the straddling accounting period”) that—
(a)begins before 1 July 2011, and
(b)ends on or after that date,
the straddling accounting period is to be treated as split.
(2)Where this paragraph provides that a straddling accounting period of a company is to be treated as “split”—
(a)that part of the straddling accounting period that falls before 1 July 2011 and that part of the straddling accounting period that falls on or after that date are to be treated for the purposes of Chapter 4 of Part 17 of ICTA as separate accounting periods, and
(b)the company’s gross income for the straddling accounting period, and its chargeable profits and creditable tax (if any) for that period, are to be apportioned to the two separate accounting periods on a time basis according to the respective lengths of the periods.