FTA Clarifies UAE Top-up Tax Scope and Registration Requirements for Multinational

The Federal Tax Authority has published detailed guidance on the scope and registration requirements applying under the UAE's Qualified Domestic Minimum Top-up Tax, or QDMTT, regime. The new Top-up Tax Guide on Scope and Registration, TTGREG1, explains how multinational enterprise groups should determine whether they fall within the UAE Pillar Two framework, which entities are subject to the regime and how affected entities must register with the FTA.

The guidance is particularly relevant to tax departments, finance teams and tax advisers responsible for UAE entities forming part of large international groups.

The UAE Top-up Tax applies to UAE Constituent Entities that are members of a multinational enterprise group with annual consolidated revenue of EUR 750 million or more in at least two of the four fiscal years immediately preceding the relevant fiscal year. The threshold is assessed using the consolidated financial statements of the group's Ultimate Parent Entity.

However, revenue size alone is not sufficient. The group must also qualify as a Multinational Enterprise Group, meaning its structure includes entities or permanent establishments located in more than one jurisdiction. A group conducting its activities exclusively within the UAE is outside the scope of the QDMTT regime, regardless of the amount of its revenue.

This distinction is important for large UAE-only groups that may exceed the EUR 750 million threshold but have no multinational presence.

The UAE introduced QDMTT for fiscal years beginning on or after 1 January 2025. The regime forms part of the OECD/G20 Pillar Two framework, which is designed to ensure that in-scope multinational groups are subject to an effective tax rate of at least 15% in each jurisdiction in which they operate.

The UAE's QDMTT allows the UAE to impose any relevant domestic minimum Top-up Tax on qualifying profits of UAE entities before another jurisdiction seeks to collect that tax under Pillar Two mechanisms. The UAE's QDMTT received transitional qualified status in the OECD central record on 18 August 2025.

The Guide provides extensive clarification on the types of structures that may need to be considered when assessing the regime. These include:

• Constituent Entities;

• Permanent Establishments;

• Minority-Owned Constituent Entities;

• Joint Ventures and JV Subsidiaries;

• Flow-through Entities;

• Reverse Hybrid Entities;

• Hybrid Entities; and

• entities whose location may differ depending on their legal and tax treatment.

The FTA also explains which entities can fall outside the charging provisions, including certain Excluded Entities, Investment Entities and particular stateless entities. The assessment should therefore be performed at both group and entity level rather than simply applying the EUR 750 million revenue test to a UAE company in isolation.

An important point clarified by the Guide is that QDMTT has its own registration requirement. An entity that is subject to Top-up Tax must register with the FTA even if it is already registered for UAE Corporate Tax. Each qualifying UAE entity may register separately under an entity-by-entity approach.

Once approved, the FTA issues a Pillar Two Top-up Tax Registration Number to the entity.The fact that several UAE companies already form a Corporate Tax Group does not remove the Top-up Tax registration requirement for the entities that fall within QDMTT.

As an alternative to separate applications, qualifying groups may appoint a Domestic Designated Filing Entity, or DDFE, to reduce the administrative burden. A DDFE may submit registration applications on behalf of members of the relevant domestic group and subsequently assume responsibility for filing the Top-up Tax Return and paying the Top-up Tax for the entities it represents. Even where a DDFE is used, each qualifying entity receives its own Pillar Two Top-up Tax TRN.

An additional group-level TRN is issued to the DDFE for the domestic group it represents.

Different treatment can apply to Domestic Main Groups, Minority-Owned Subgroups and Domestic JV Groups, so multinational groups with complex UAE structures should assess the appropriate registration model carefully.

One particularly important clarification is that a zero Top-up Tax liability does not necessarily eliminate the registration requirement. The Guide identifies several circumstances where Top-up Tax may be deemed to be zero, including:

• the de-minimis exclusion;

• the Transitional Country-by-Country Reporting Safe Harbour;

• the Simplified Calculations Safe Harbour; and

• provisions applying during the initial phase of international activities.

Entities benefiting from those provisions can nevertheless remain within the QDMTT charging provisions and therefore still be required to register with the FTA. Businesses should therefore avoid assuming that no registration is necessary merely because their calculated Top-up Tax is nil.

The Guide confirms specific registration deadlines. Where an entity's relevant fiscal year ended before 30 April 2026, the entity, or the DDFE representing it, must submit the Top-up Tax registration application by 30 November 2026.

For other cases, registration must generally be completed within seven months from the end of the first fiscal year in which the entity falls within scope of the QDMTT legislation. For example, where a company first becomes part of an in-scope multinational group during a fiscal year ending 31 December 2026, the Guide illustrates that registration would generally be due by 31 July 2027.

Failure to submit the required registration application within the prescribed period can result in an AED 10,000 administrative penalty. Where a DDFE fails to register entities it represents on time, the AED 10,000 penalty can apply in respect of each entity for which the registration application was not submitted within the required deadline. The FTA may also register an entity based on information available to it where the entity or its DDFE has failed to complete the required registration.

Top-up Tax registration applications are submitted through the EmaraTax portal. Entities already registered for another UAE federal tax should use their existing Taxable Person profile.

An entity that has never registered with the FTA must first create a Taxable Person and obtain a Tax Identification Number before submitting the Top-up Tax application. The supporting documentation can include:

• identification details for an Ultimate Parent Entity located outside the UAE;

• details of a foreign Designated Filing Entity where relevant; and

• documentation showing the corporate structure of the multinational group.

The FTA can request additional documents before approving the application.

The Guide also explains the relationship between Top-up Tax registration and the Pillar Two Information Return. At the registration stage, the multinational group must identify the entity that will be responsible for filing the Pillar Two Information Return.

Ministerial Decision No. 133 of 2026 provides several possible filing structures. The Return may be filed individually by relevant UAE entities, through a Designated Local Entity, or, subject to the applicable information-exchange arrangements, by a qualifying Ultimate Parent Entity or Designated Filing Entity outside the UAE.

The Guide also clarifies that a Designated Local Entity is not the same as a DDFE. A Designated Local Entity is appointed specifically for the Pillar Two Information Return. A DDFE has wider responsibilities relating to registration, the Top-up Tax Return and payment of the Top-up Tax. The same UAE entity can potentially perform both roles if properly appointed.

NUR Advisory Note

The most immediate issue for affected multinational groups is scope determination followed by registration readiness.

Groups should not begin with the UAE subsidiary's standalone revenue. The correct analysis starts at multinational group level and considers the consolidated revenue of the Ultimate Parent Entity, the international structure of the group and whether the revenue threshold was met in at least two of the preceding four fiscal years.

The UAE entities within that group must then be assessed individually. A practical review should cover:

• whether the group qualifies as an MNE Group;

• the EUR 750 million consolidated revenue test;

• the relevant fiscal years;

• all UAE Constituent Entities;

• UAE Permanent Establishments;

• Joint Ventures and JV Subsidiaries;

• Minority-Owned Subgroups;

• Flow-through and hybrid structures;

• entities potentially qualifying as Excluded Entities or Investment Entities;

• whether an entity-by-entity or DDFE registration approach is preferable;

• the relevant registration deadline;

• the entity responsible for the Pillar Two Information Return; and

• availability of the corporate structure and parent-company documentation required for registration.

Groups whose fiscal year ended before 30 April 2026 should pay particular attention to the 30 November 2026 deadline.

It is also important to separate three different concepts: being within the scope of QDMTT, having an actual Top-up Tax amount payable, and having a registration obligation. An entity can remain subject to registration even where a safe harbour or other provision reduces its Top-up Tax to zero.

For multinational businesses operating in the UAE, Pillar Two should therefore be treated as a group-level tax governance project, not simply as another UAE Corporate Tax filing.