UAE Opens Pillar Two Registration: Key Deadlines for Multinational Groups
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The UAE Federal Tax Authority (FTA) has issued Decision No. 12 of 2026, establishing the registration and deregistration timelines for entities subject to the UAE Domestic Minimum Top-up Tax (DMTT) regime under Pillar Two.
The Decision marks an important step in the practical implementation of the UAE's Pillar Two framework, as multinational groups must now move from assessing the impact of the rules to complying with specific registration obligations.
Who needs to register?
The registration requirements apply to UAE entities that fall within the scope of the UAE DMTT regime, generally forming part of multinational enterprise groups with consolidated revenues of at least EUR 750 million.
Groups that have appointed a Domestic Designated Filing Entity may submit the registration on behalf of all eligible UAE group members.
Registration deadlines
Under FTA Decision No. 12 of 2026, entities subject to the DMTT must submit their registration application within seven months from the end of the first fiscal year in which they become in scope.
The Decision also introduces a transitional deadline for entities with earlier fiscal year-ends.
For entities whose first in-scope fiscal year ended before 30 April 2026, registration must be completed no later than 30 November 2026.
For example, an entity with a financial year ending 31 December 2025 would ordinarily have a registration deadline of 31 July 2026.
However, the transitional rules provide an ultimate registration deadline of 30 November 2026.
The Decision applies to fiscal years starting on or after 1 January 2025, even though it was issued during 2026.
Application of the Decision
As a result, groups that have already completed their initial Pillar Two impact assessments should now confirm whether any UAE entities are required to register and ensure that the relevant deadlines are monitored.
Why this matters
For many multinational groups, Pillar Two has so far been a modelling and assessment exercise.
The opening of the registration process confirms that the UAE Pillar Two framework has entered its operational phase. Registration is now a formal compliance obligation that sits alongside existing Corporate Tax requirements.
Businesses should therefore ensure that:
All UAE constituent entities have been identified.
The group's Pillar Two scope assessment has been completed.
Responsibility for registration has been assigned.
A Domestic Designated Filing Entity has been considered where appropriate.
Pillar Two compliance deadlines have been incorporated into the group's tax governance framework.
Altair Tax Insight
The publication of FTA Decision No. 12 of 2026 represents the first significant administrative milestone in the UAE's Pillar Two implementation.
While many groups have already assessed the potential tax impact of the DMTT, registration is the first formal compliance obligation that affected businesses must meet. The transitional deadline of 30 November 2026 provides additional time for groups with earlier year-ends, but businesses should not wait until the final deadline to determine whether they are within scope.
Multinational groups with UAE operations should use this period to confirm their registration position, establish governance processes and ensure they are prepared for future Pillar Two reporting obligations.
The UAE Federal Tax Authority (FTA) has issued Decision No. 12 of 2026, establishing the registration and deregistration timelines for entities subject to the UAE Domestic Minimum Top-up Tax (DMTT) regime under Pillar Two.
The Decision marks an important step in the practical implementation of the UAE's Pillar Two framework, as multinational groups must now move from assessing the impact of the rules to complying with specific registration obligations.
Who needs to register?
The registration requirements apply to UAE entities that fall within the scope of the UAE DMTT regime, generally forming part of multinational enterprise groups with consolidated revenues of at least EUR 750 million.
Groups that have appointed a Domestic Designated Filing Entity may submit the registration on behalf of all eligible UAE group members.
Registration deadlines
Under FTA Decision No. 12 of 2026, entities subject to the DMTT must submit their registration application within seven months from the end of the first fiscal year in which they become in scope.
The Decision also introduces a transitional deadline for entities with earlier fiscal year-ends.
For entities whose first in-scope fiscal year ended before 30 April 2026, registration must be completed no later than 30 November 2026.
For example, an entity with a financial year ending 31 December 2025 would ordinarily have a registration deadline of 31 July 2026.
However, the transitional rules provide an ultimate registration deadline of 30 November 2026.
The Decision applies to fiscal years starting on or after 1 January 2025, even though it was issued during 2026.
Application of the Decision
As a result, groups that have already completed their initial Pillar Two impact assessments should now confirm whether any UAE entities are required to register and ensure that the relevant deadlines are monitored.
Why this matters
For many multinational groups, Pillar Two has so far been a modelling and assessment exercise.
The opening of the registration process confirms that the UAE Pillar Two framework has entered its operational phase. Registration is now a formal compliance obligation that sits alongside existing Corporate Tax requirements.
Businesses should therefore ensure that:
All UAE constituent entities have been identified.
The group's Pillar Two scope assessment has been completed.
Responsibility for registration has been assigned.
A Domestic Designated Filing Entity has been considered where appropriate.
Pillar Two compliance deadlines have been incorporated into the group's tax governance framework.
Altair Tax Insight
The publication of FTA Decision No. 12 of 2026 represents the first significant administrative milestone in the UAE's Pillar Two implementation.
While many groups have already assessed the potential tax impact of the DMTT, registration is the first formal compliance obligation that affected businesses must meet. The transitional deadline of 30 November 2026 provides additional time for groups with earlier year-ends, but businesses should not wait until the final deadline to determine whether they are within scope.
Multinational groups with UAE operations should use this period to confirm their registration position, establish governance processes and ensure they are prepared for future Pillar Two reporting obligations.
