Multinational Top-up Tax and Domestic Top-up Tax

MTT50010 - Administration: Overview

HMRC are responsible for collecting and managing the Multinational Top-up Tax (MTT). Schedule 14 sets out the legislative framework under which payment of MTT is to be administered.

The following pages provide some practical guidance in support of the legislation.

MTT51000+ provides guidance on the filing member and the obligations of the filing member. MTT is applied to groups, but administration is simplified by the selection of a single member of the group as the point of contact for compliance.

MTT52000+ provides guidance on the information return, also known as the GloBE Information Return.

MTT53000+ provides guidance on the self-assessment return.

MTT54000+ provides guidance on the payment date, interest, group payment notices, and relief of overpaid tax.

MTT55000+ provides guidance on compliance, including compliance checks, discovery assessments, HMRC determinations, penalties, appeals, and reviews.

Domestic Top-up Tax

Domestic Top-up Tax (DTT) is generally administrated in the same way as MTT. See MTT50200 for guidance on the administration of DTT.

Where this guidance refers to MTT, it is also referring to DTT, unless noted otherwise.

Accounting periods

References to accounting periods will refer to the accounting period of the consolidated financial statements of the group, rather than that of any individual member of the group. See MTT09540 for guidance on accounting periods.

Groups where the ultimate parent is not located in the UK

Note that groups which are headquartered outside of the UK are still required to register for MTT.

See MTT51100 for guidance on identifying the filing member (which is obliged to register for MTT), and MTT51400 for guidance on the obligation to register.

Groups comprised entirely of excluded entities

Where all of a group’s entities are excluded entities, it does not have administrative obligations. It is not required to register and does not have any other administrative obligations.

If all of the UK entities of a group are excluded entities, but it has entities in other territories which are not excluded entities, it must still register.