Section 124 How to calculate top-up amounts etcF2

United Kingdom

(1)

Generally, a member of a multinational group in a territory will have a top-up amount for an accounting period if—

(a)

the effective tax rate of the members of the group in that territory for that period is less than 15%, and

(b)

that member has profits for that period.

(2)

Chapter 3 of this Part sets out how to determine the effective tax rate of the members of a multinational group in a territory by reference to the profits of, and the taxes payable by, those members in that territory.

(3)

Chapter 4 of this Part sets out how to calculate the profits of members of a multinational group.

(4)

Chapter 5 of this Part sets out—

(a)

which taxes (referred to in this Part as “covered taxes”) are to be considered in determining the effective tax rate of those members, and

(b)

how to determine the amount of covered taxes allocated to those members.

(5)

Chapter 6 of this Part sets out how to use the effective tax rate and profits of the members of a multinational group to determine the top-up amounts of those members.

(6)

Chapter 7 of this Part sets out how to attribute those top-up amounts to a responsible member of the group.

(7)

Chapter 8 of this Part contains provisions about—

(a)

additional top-up amounts, and

(b)

further adjustments that may need to be made (including provision about adjustments for restructuring of multinational groups).

(8)

Chapter 9 of this Part sets out special provision for investment entities, joint venture groups and minority owned members (including provision that applies to those entities instead of provision in the previous Chapters).

F1(8A)

Chapter 9A makes provision for—

(a)

determining whether members of the group have untaxed amounts, and

(b)

allocating those untaxed amounts to members of the group located in the United Kingdom, other than members that are investment entities or joint venture group members.

(9)

Chapter 10 of this Part contains definitions and other provisions relevant to the calculations and other determinations to be made for the purposes of multinational top-up tax and Chapter 11 contains general provision.

Annotations

Textual amendments

F1: S. 124(8A) inserted (in relation to accounting periods commencing on or after 31.12.2024) by Finance Act 2025 (c. 8), Sch. 4 paras. 4(2)(b), 10
F2: Word in s. 124 heading substituted (in relation to accounting periods commencing on or after 31.12.2024) by Finance Act 2025 (c. 8), Sch. 4 paras. 4(2)(a), 10

Notes on Part 3

Modifications

C1: Pt. 3 modified (2.12.2025) by Finance Act 2026 (c. 11), Sch. 8 paras. 32, 53(3)