The UAE’s 30 November Top-up Tax Deadline: Who Must Register, and What the FTA’s New Guide Says

For UAE entities that are members of large multinational groups, the first hard Pillar Two compliance date is now circled on the calendar: 30 November 2026. On 7 October 2026, the Federal Tax Authority (FTA) published its new Top-up Tax Guide on Scope and Registration, and it lands alongside FTA Decision No. 12 of 2026, which fixes the registration, deregistration and notification timelines for the UAE’s Domestic Minimum Top-up Tax regime. Together they remove most of the excuses for leaving this until December.

The regime in one paragraph

The UAE introduced its Qualified Domestic Minimum Top-up Tax (QDMTT) under Cabinet Decision No. 142 of 2024, applying to fiscal years beginning on or after 1 January 2025. The regime follows the OECD/G20 Pillar Two GloBE Rules: multinational enterprise (MNE) groups with consolidated revenue of at least EUR 750 million in at least two of the four preceding fiscal years must pay a top-up tax that brings the effective tax rate on their UAE profits up to a minimum of 15%. The QDMTT lets the UAE, rather than another jurisdiction, collect that top-up on low-taxed UAE entities. On 18 August 2025, the UAE was included on the OECD central record with “transitional qualified” status, meaning UAE top-up tax is recognised by other GloBE jurisdictions — a point groups should double-check when allocating top-up tax between countries.

The deadline that matters this quarter

FTA Decision No. 12 of 2026 sets two registration timelines:

• Entities whose financial year ended before 30 April 2026 must submit their Top-up Tax registration application on or before 30 November 2026. In practice, this captures the most common UAE profile: a 31 December 2025 year-end entity whose first DMTT fiscal year was calendar 2025.
• All other in-scope entities must register within seven months of the end of the first fiscal year in which they became subject to the regime.

So a December year-end group has roughly six weeks from today. The FTA’s Guide walks through who the registering “entity” actually is, because the answer is not always obvious: it covers Constituent Entities, Permanent Establishments, Joint Ventures, Flow-through Entities and Hybrid Entities, as well as the rules for locating an entity or PE in the UAE for Top-up Tax purposes.

If you are not in scope, the FTA still wants to hear from you

Decision No. 12 of 2026 also builds a notification framework for groups that fall out of scope. An entity that is a member of an MNE Group but outside the DMTT regime must file an out-of-scope notification within six months of the end of the tested fiscal year. That notification then covers the tested year plus the next four fiscal years — but if the group comes back into scope, an in-scope notification is due within seven months of the end of the relevant year. Cease to exist entirely, and a deregistration application is due within six months (by 31 December 2026 for entities that ceased before 30 June 2026). Note the condition attached: the FTA will not deregister an entity that still owes Top-up Tax, penalties, or unfiled Top-up Tax and Pillar Two Information Returns.

Groups with UAE-wide structures may prefer to centralise: a Domestic Designated Filing Entity can handle registration, deregistration and notifications on behalf of eligible group entities, which simplifies a compliance calendar that otherwise multiplies by entity count.

What finance teams should do before 30 November

• Confirm the revenue test at group level: consolidated revenue of EUR 750 million or more in at least two of the four preceding fiscal years brings the group into Pillar Two territory.
• Map every UAE entity and PE, and run the Guide’s worked examples over Joint Ventures, flow-through and hybrid structures before assuming they are excluded.
• Diarise the correct deadline: 30 November 2026 for financial years ending before 30 April 2026, otherwise the seven-month rule.
• Decide whether a Domestic Designated Filing Entity should register on behalf of the group’s UAE entities.
• Start gathering the GloBE data early — effective tax rate calculations, deferred tax adjustments and substance-based carve-out inputs all take longer to assemble than registration itself.
• If the group is out of scope, plan the out-of-scope notification rather than staying silent.

The regime provides for administrative penalties for non-compliance, and late registration is the kind of failure that is entirely avoidable with a diary entry and a delegated owner. For groups still calibrating their UAE exposure, the new Guide is the clearest official map published to date — worth reading before, not after, the deadline.

FSH Financial Consultants helps UAE businesses and group finance teams navigate Corporate Tax, Top-up Tax and transfer pricing compliance. Talk to us about your Pillar Two readiness.