TTGREG1 - FTA Publishes Top-up Tax Guide : Who Must Register for UAE DMTT and By When

The Federal Tax Authority has published its first detailed guide on the UAE Top-up Tax: the Scope and Registration Top-up Tax Guide (TTGREG1), dated August 2026. At 105 pages, it is the most complete official explanation yet of which entities fall within the UAE's Domestic Minimum Top-up Tax and how registration works on EmaraTax.

If your group has consolidated revenue near or above EUR 750 million and any presence outside a single jurisdiction, this guide concerns you. The first hard deadline is close: entities with a Fiscal Year ending before 30 April 2026 must register by 30 November 2026, and the penalty for missing it is AED 10,000 per entity.

What changed

Until now, groups worked from the legislation itself: Cabinet Decision No. 142 of 2024 on the Imposition of Top-up Tax on Multinational Enterprises (the QDMTT Legislation) and FTA Decision No. 12 of 2026, which set the registration and deregistration timelines in July. TTGREG1 is the FTA's practical commentary on both. It explains, with 42 worked examples, how the scope tests apply to real structures: tax groups, branches, joint ventures, minority-owned subgroups, flow-through entities and mid-year acquisitions.

The guide also confirms the wider legislative framework now in place. Ministerial Decision No. 96 of 2026 formally adopts the OECD's 2026 Consolidated Commentary to the GloBE Rules for UAE purposes, and Ministerial Decision No. 133 of 2026 sets out who files the Pillar Two Information Return. The UAE's DMTT secured transitional qualified status on the OECD central record on 18 August 2025, which is why it is properly called a QDMTT.

Who is affected

The QDMTT Legislation applies, for Fiscal Years beginning on or after 1 January 2025, to UAE-located Constituent Entities of an MNE Group that meets both of these conditions:

Two points from the guide deserve more attention than they are getting.

Purely domestic UAE groups are out of scope. A group whose entities are all located in the UAE is not an MNE Group, regardless of revenue. Even a UAE-only group turning over well above EUR 750 million has no Top-up Tax registration obligation until it opens a foreign entity or permanent establishment.

Excluded Entity does not mean Exempt Person. The guide states directly that an Excluded Entity under the QDMTT Legislation (governmental entities, international organisations, non-profits, pension funds, and UPE investment funds or real estate investment vehicles, plus certain holding entities they own) is not the same concept as an Exempt Person under Federal Decree-Law No. 47 of 2022, the Corporate Tax Law. A Corporate Tax exemption does not automatically remove an entity from the Top-up Tax net, and the reverse is also true. Each status must be tested separately.

What you must do

1. Confirm scope entity by entity. Every UAE Constituent Entity of an in-scope MNE Group is subject to the charging provision and must register, including UAE permanent establishments of foreign parents. The guide confirms that two UAE offices carrying on the same business form a single PE (one registration), while two branches carrying on different businesses are two separate Constituent Entities (two registrations). Whether a PE is a Qualifying Free Zone Person for Corporate Tax makes no difference to QDMTT registration.

2. Do not rely on your Corporate Tax registration. Top-up Tax has its own registration. A Corporate Tax Tax Group does not carry across: in the guide's own example, three UAE companies in a Tax Group must each obtain a Pillar Two Top-up Tax TRN. Entities already registered with the FTA keep the same first ten digits (the TIN) in their new TRN, and even entities exempt from Corporate Tax registration under Ministerial Decision No. 43 of 2023 must still register for Top-up Tax if in scope.

3. Register even if your Top-up Tax is zero. This is the point most likely to catch groups out. Where the tax is deemed zero under the de-minimis exclusion, the Transitional CbCR Safe Harbour, the Simplified Calculations Safe Harbour or the initial phase of international activities relief, the entity remains within the charging provision and must still register. Safe harbours reduce the tax, not the compliance.

4. Decide between entity-by-entity registration and a DDFE. A Domestic Designated Filing Entity can register, file and pay on behalf of a Domestic Main Group (together with any minority-owned subgroup or reverse hybrid). A Domestic JV Group needs its own separate DDFE drawn from its own members; one DDFE cannot cover both. Each represented entity must authorise the appointment on EmaraTax or by signed letter. Note the risk allocation: if a DDFE misses the deadline, the AED 10,000 penalty applies for each entity it failed to register.

Route A

Entity by entity

1. Each UAE Constituent Entity applies for registration on EmaraTax
2. Each entity receives its own Pillar Two Top-up Tax TRN

Route B

DDFE approach

1. Each entity authorises the DDFE on EmaraTax or by signed letter
2. The DDFE files one application for the Domestic Group
3. Every entity still receives its own TRN, plus one group-level TRN issued to the DDFE

A Domestic JV Group requires its own separate DDFE

5. Nominate your Pillar Two Information Return filer. At registration, you must tell the FTA who will file the Pillar Two Information Return. Under Ministerial Decision No. 133 of 2026 there are four options, including a UAE Designated Local Entity or a foreign UPE in a jurisdiction with a Qualifying Competent Authority Agreement. The Designated Local Entity is a different role from the DDFE, and a group may deliberately appoint two different entities.

Deadlines

Under FTA Decision No. 12 of 2026:

For a calendar-year group first in scope for FY2025, that means 30 November 2026. Failure to register on time triggers an AED 10,000 Administrative Penalty per entity under Cabinet Decision No. 75 of 2023, and the FTA can also register a non-compliant entity itself, backdated to the original obligation date.

Registration is made on EmaraTax with documents verifying the UPE's name and TIN (where the UPE is outside the UAE), the Designated Filing Entity's details if applicable, and an overview of the MNE group's corporate structure. Groups appointing a Tax Agent must use one listed with the FTA for Corporate Tax purposes.

Key takeaway

TTGREG1 removes the last excuse for waiting. Scope is now explained with worked examples, the deadline for most calendar-year groups is 30 November 2026, and the guide is explicit that safe harbours and zero tax outcomes do not remove the duty to register. The near-term work for affected groups is structural, not computational: map every UAE Constituent Entity, PE and JV, choose the DDFE arrangement, and get the EmaraTax applications in with the corporate structure documentation ready.

Frequently asked questions

How Stevva can help

Scope assessment under the QDMTT Legislation is where groups lose time: identifying every Constituent Entity, testing the revenue threshold across four Fiscal Years, and structuring the DDFE appointment correctly before the EmaraTax application goes in. Stevva's corporate tax advisory team works with multinational groups on exactly this, and because scope turns on Consolidated Financial Statements prepared under an Acceptable Financial Accounting Standard, our audit and assurance arm (delivered through appropriately licensed partners where applicable) can support the financial statements side of the same exercise.

If your group's first in-scope year ended before 30 April 2026, the 30 November 2026 deadline leaves one quarter to complete the work. Message Stevva's tax consultants on WhatsApp at +971 50 932 1257 for a scope and registration assessment, or start with our UAE Corporate Tax calculator to see how your standard Corporate Tax position interacts with the 15% minimum.