(1)The purpose of this Part is to implement the provisions of the Pillar Two rules relating to top-up tax under the IIR (within the meaning of those rules).
(2)For that purpose, this Part makes provision for a tax payable in respect of members of multinational groups who are located in territories (outside the United Kingdom) where their rate of tax (as determined in accordance with this Part) is less than 15%.
(3)The tax is to be known as “multinational top-up tax”.
(4)Sections 122 to 124 set out the charge to multinational top-up tax and describe how it is to be calculated.
(a)sets out the meaning of “multinational group”;
(b)describes who the members of such a group are;
(c)identifies the ultimate parent of such a group;
(d)limits the application of this Part to multinational groups with an annual revenue of at least 750 million euros and that have at least one member in the United Kingdom (such a group is referred to in this Part as “qualifying”);
(e)sets out how to determine which members of a multinational group (“responsible members”) are responsible for paying the tax and which members they are responsible for.