Section 480 | “Period of account” of worldwide group

References in this Part to a “period of account” of a worldwide group are to—^F1

(a)a period in respect of which financial statements of the group are drawn up by or on behalf of the ultimate parent, or^F1

(b)a period in respect of which financial statements of the group are treated as drawn up for the purposes of this section (whether under any of sections 481 to 485 or under any other enactment).^F1