UAE Pillar Two DMTT Guide 2026 | 15% Top-Up Tax

The UAE Domestic Minimum Top-up Tax (DMTT) applies for fiscal years beginning on or after 1 January 2025 to UAE constituent entities of multinational enterprise groups that meet the EUR 750 million consolidated revenue test. It targets a 15% jurisdictional effective tax rate calculated under the GloBE rules - not by simply adding six percentage points to the UAE's 9% Corporate Tax rate.

Key takeaways

Scope is tested at MNE-group level: EUR 750 million or more in at least two of the four fiscal years immediately preceding the tested year.
The UAE calculation is jurisdictional and uses Pillar Two Income and Adjusted Covered Taxes, with special adjustments and elections.
For an FY2025 calendar-year group, registration is due 30 November 2026, the Pillar Two Information Return is generally due 31 March 2027, and the first Top-up Tax Return and payment are due 30 June 2027.
A safe harbour may deem top-up tax to be zero, but it does not automatically remove registration or data-governance obligations.
Free zone status and ordinary Corporate Tax compliance do not, by themselves, answer the Pillar Two question.

What is the UAE Domestic Minimum Top-up Tax?

The DMTT is the UAE's domestic implementation of the OECD Pillar Two minimum-tax framework. Cabinet Decision No. 142 of 2024 applies a top-up tax where the Pillar Two effective tax rate for the UAE is below 15%. The regime is intended to allow the UAE to collect qualifying domestic top-up tax before another jurisdiction applies its own Pillar Two charging rule to the same low-taxed UAE profit.

The UAE has implemented the DMTT and has not introduced an Income Inclusion Rule at this stage. The Ministry of Finance states that it will continue monitoring developments. For the latest official position, see the Ministry of Finance Top-up Tax page.

Who is within the UAE Pillar Two DMTT scope?

A UAE entity is potentially within scope when it is a constituent entity of an MNE group and the ultimate parent entity's consolidated financial statements report annual revenue of at least EUR 750 million in at least two of the four fiscal years immediately preceding the tested fiscal year.

The group must have entities or permanent establishments in more than one jurisdiction; purely domestic groups are not MNE groups for this purpose.
The revenue test uses the ultimate parent entity's consolidated financial statements and includes special rules for mergers, demergers, short periods and newly created groups.
UAE constituent entities, qualifying permanent establishments, minority-owned subgroups, joint ventures and JV subsidiaries can require separate analysis.
Investment entities and certain excluded entities have specific treatment. Exclusion from top-up tax does not mean the entity can be ignored when testing group revenue or collecting required data.

Practical scoping test
Start with the legal ownership chart and the UPE's consolidation perimeter. Then reconcile every UAE legal entity, branch, partnership, trust, joint venture and permanent establishment to the Pillar Two entity classification. A Corporate Tax registration list alone is not a reliable Pillar Two population.

Does UAE DMTT apply across all seven emirates and Free Zones?

Yes. The DMTT is a federal UAE regime. For the main jurisdictional calculation, eligible income and Covered Taxes of in-scope constituent entities in Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah and Fujairah are generally brought into the UAE result. The emirate or licensing authority does not create a separate country-level ETR, although the rules require separate computations for specified entity categories such as JV groups and minority-owned subgroups.

Mainland or Free Zone status still matters because it affects the entity's domestic Corporate Tax profile, source records and potential 0% or 9% outcomes. It does not, by itself, remove an in-scope entity from Pillar Two. For the domestic-law rate context, see the UAE Government Corporate Tax overview; for the DMTT analysis, use the Pillar Two definitions and jurisdictional rules.

Why the UAE's 9% Corporate Tax rate does not produce an automatic 6% top-up

The 15% minimum is not applied to UAE taxable income. It is applied to a jurisdictional GloBE effective tax rate. The numerator and denominator therefore differ from the amounts in a UAE Corporate Tax return.

UAE Corporate Tax lens	Pillar Two lens
Taxable income under the Corporate Tax Law	Net Pillar Two Income after GloBE adjustments
Current UAE Corporate Tax liability	Adjusted Covered Taxes, including prescribed current and deferred tax adjustments
Entity or UAE tax-group filing	Jurisdictional blending, with special treatment for certain entity categories
0%/9% statutory rates and specific reliefs	15% ETR test, elections, safe harbours and substance-based exclusion

A group can have a GloBE ETR above, below or materially different from the statutory rate because permanent differences, deferred-tax attributes, uncertain tax positions, prior-period adjustments and entity classifications affect the calculation.

How is UAE DMTT calculated?

At its core, the calculation is performed for the UAE jurisdiction, not as a simple stand-alone company-rate comparison. The following sequence is useful for management modelling:

Determine the GloBE income or loss of each relevant UAE constituent entity from acceptable financial accounts, then apply the required Pillar Two adjustments.
Determine Covered Taxes and make the prescribed current-tax, deferred-tax, allocation and prior-period adjustments to arrive at Adjusted Covered Taxes.
Aggregate the relevant amounts for the UAE and calculate the jurisdictional ETR: Adjusted Covered Taxes ÷ Net Pillar Two Income.
If the ETR is below 15%, calculate the top-up tax percentage: 15% minus the UAE ETR.
Deduct the Substance-based Income Exclusion (SBIE) from Net Pillar Two Income to determine Excess Profit.
Apply the top-up percentage to Excess Profit, then consider additional current top-up tax, QDMTT-specific adjustments, allocation rules and any applicable safe harbour.

Simplified core formula
ETR = Adjusted Covered Taxes ÷ Net Pillar Two Income
Top-up percentage = 15% − ETR
Excess Profit = Net Pillar Two Income − SBIE
Indicative top-up tax = Top-up percentage × Excess Profit
The statutory computation contains further adjustments; this simplified formula is a modelling bridge, not a substitute for the full return calculation.

For a complete numeric walkthrough, read SBC's UAE Pillar Two ETR calculation example.

How does DMTT interact with Free Zone and mainland income?

Qualifying Free Zone Person status remains relevant for ordinary UAE Corporate Tax, but it does not switch off Pillar Two. A 0% Corporate Tax outcome on qualifying income can reduce the UAE jurisdictional GloBE ETR. At the same time, jurisdictional blending may combine that result with taxes and income of other UAE constituent entities.

Finance teams should model the combined UAE population, including mainland entities taxed at 9%, qualifying and non-qualifying Free Zone income, permanent establishments, withholding or foreign taxes allocated to UAE income, and covered deferred tax. The correct answer is data-driven; neither "Free Zone means zero top-up" nor "9% means a 6% top-up" is reliable.

Which safe harbours and simplifications may reduce the burden?

The UAE framework incorporates OECD-aligned simplifications, including the Transitional CbCR Safe Harbour, a de minimis exclusion, simplified calculations for certain entities and an exclusion for the initial phase of international activity where the conditions are met. Each route has its own data-quality, consistency and election requirements.

Do not assume a country-by-country report is automatically "qualified" for the safe harbour. The source financial data and permitted adjustments must meet the relevant standard.
Test the safe harbour before finalising the full computation, but preserve a calculation trail that explains eligibility and elections.
A zero top-up result under a safe harbour does not remove the obligation to register where the entity is otherwise subject to the UAE regime. The FTA's August 2026 guide states this explicitly.
Monitor annual changes: a group can pass one year and fail the next because revenue, profit, tax expense, restructuring or data-source conditions change.

What are the key UAE DMTT deadlines?

The compliance calendar has separate registration, information-return and tax-return milestones. Treating them as one deadline is a common control failure.

Obligation	General timing	FY2025 calendar-year illustration
Top-up Tax registration	Within 7 months after the end of the first fiscal year in scope. Transitional rule applies where that year ended before 30 April 2026.	30 November 2026
Pillar Two Information Return (P2IR)	No later than 15 months after the last day of the reporting fiscal year.	31 March 2027
P2IR foreign-filer notification	By the P2IR deadline where a UPE or designated filing entity files under an effective qualifying exchange agreement.	31 March 2027
Top-up Tax Return	15 months after year-end; 18 months for the first transition year of any constituent entity in the MNE group.	30 June 2027
Top-up tax payment	Due by the Top-up Tax Return filing deadline.	30 June 2027

Deadline distinction that matters
The 18-month transition-year extension applies to the Top-up Tax Return under Article 8.1.2. Article 15.4 sets a 15-month deadline for the Pillar Two Information Return and related notification. For a 31 December 2025 year-end, that makes the P2IR deadline three months earlier than the first Top-up Tax Return deadline.

For registration mechanics and the DDFE approach, see SBC's UAE Pillar Two registration guide.

Designated Local Entity versus Domestic Designated Filing Entity

Role	Primary responsibility	What to remember
Designated Local Entity (DLE)	Files one P2IR, or submits the foreign-filer notification, for represented UAE entities.	This is an information-reporting role.
Domestic Designated Filing Entity (DDFE)	Registers representing domestic group members, files the Top-up Tax Return and pays UAE top-up tax for that domestic group.	Separate DDFEs may be needed for a domestic main group and a domestic JV group.

The same UAE constituent entity can hold both appointments if properly authorised, but the appointments are legally distinct. Governance documents and EmaraTax authorisations should reflect the correct role.

What should an in-scope group do now?

Confirm the group's revenue-threshold history and document the tested fiscal year.
Build a complete UAE Pillar Two entity map, including branches, JVs, reverse hybrids and minority-owned subgroups.
Select the entity-by-entity or DDFE registration approach and obtain formal authorisations.
Run a 2025 jurisdictional ETR and SBIE model with a bridge from local ledgers to the consolidation package.
Test safe harbours using controlled data and preserve the supporting workpapers.
Assign ownership of the P2IR, Top-up Tax Return, payment, elections and foreign-filer notification.
Design a recurring close process for deferred tax, covered-tax allocations, intercompany data and review evidence.

Frequently asked questions

Does every UAE company pay DMTT?

No. The regime is aimed at UAE entities of MNE groups that meet the EUR 750 million consolidated revenue threshold. Smaller groups and purely domestic groups are generally outside the core scope, subject to the precise entity and group definitions.

Is UAE DMTT simply an extra 6% on top of 9% Corporate Tax?

No. The GloBE ETR uses Adjusted Covered Taxes and Net Pillar Two Income on a jurisdictional basis. The ultimate top-up can be more or less than a simple rate difference and may be reduced by the SBIE or a safe harbour.

Do Qualifying Free Zone Persons remain at 0%?

Their qualifying income may retain the 0% Corporate Tax treatment, but Pillar Two is a separate regime. The 0% result can affect the UAE jurisdictional ETR and therefore the DMTT calculation.

Can one UAE entity file for the whole group?

Potentially. A properly appointed DDFE can handle the Top-up Tax Return and payment for the relevant domestic group, while a DLE can file the P2IR for represented UAE entities. The roles and authorisations must be set up correctly.

Is registration required when a safe harbour makes top-up tax zero?

Yes, where the entity is otherwise subject to the regime. The FTA's Scope and Registration Guide states that entities remain required to register even when specified simplifications deem the top-up tax to be zero.

When is the first deadline for a calendar-year group?

For an FY2025 calendar-year group, the transitional registration deadline is 30 November 2026. The P2IR is generally due 31 March 2027, and the first Top-up Tax Return and payment are due 30 June 2027.

Is UAE DMTT calculated separately for Dubai and Abu Dhabi?

No. The principal ETR and top-up computation is jurisdictional at UAE level, not emirate by emirate. Special entity categories may require separate calculations under the Pillar Two rules, but those separations are not based merely on an entity's emirate or licensing authority.

Primary sources and further reading

How SBC Tax Consulting can help

SBC's international tax team supports groups with scoping, ETR modelling, registration, compliance design and audit-ready documentation. We map the UAE Pillar Two entity population, build the jurisdictional ETR and SBIE model, test safe harbours against controlled data, and set the recurring close process that keeps the P2IR, Top-up Tax Return and corporate tax filings consistent. Contact SBC to review your group's DMTT position before the next deadline.

This publication is for general information only and does not constitute professional advice. Please consult your SBC advisor before acting on any matter covered here.