UAE Domestic Minimum Top-Up Tax (DMTT): Which Businesses Fall Under the EUR 750 Million Pillar Two Threshold?

Understanding the UAE Domestic Minimum Top-Up Tax

The UAE Domestic Minimum Top-Up Tax forms part of the OECD’s Pillar Two Global Anti-Base Erosion (GloBE) rules. These international tax standards were introduced to ensure that large multinational groups pay a minimum effective tax rate of 15 percent in every jurisdiction where they operate.

Under the UAE framework, if the effective tax rate on UAE profits falls below 15 percent under Pillar Two calculations, an additional top-up tax may apply.

The UAE implemented the DMTT to ensure that any additional tax connected to UAE profits is collected within the UAE rather than being imposed by foreign jurisdictions through overseas Pillar Two mechanisms.

The rules became effective for financial years starting on or after 1 January 2025. For many affected groups, 2026 represents the first full year of operational compliance and reporting preparation.

Why the UAE Introduced the DMTT

The UAE remains one of the world’s leading international business hubs, attracting multinational groups through its competitive tax and regulatory environment.

However, once the OECD Pillar Two framework was adopted globally, jurisdictions needed to implement domestic measures to protect their own tax base.

Without a UAE DMTT, another country could potentially collect top-up tax on low-taxed UAE profits generated by multinational groups.

The UAE introduced the DMTT to:

For most local businesses and SMEs, the DMTT will have little or no direct impact because the rules apply only to very large multinational groups.

Which Businesses Are Covered by the EUR 750 Million Threshold?

The UAE DMTT applies only to multinational enterprise groups that satisfy the OECD revenue threshold test.

Does the UAE Entity’s Own Revenue Matter?

No. The test is based on the consolidated revenue of the entire multinational group rather than the revenue of the UAE entity alone.

A UAE subsidiary with limited local operations can still be subject to the DMTT rules if the multinational group it belongs to crosses the EUR 750 million global revenue threshold. 

How the UAE DMTT Is Calculated

The DMTT calculation follows OECD Pillar Two methodology rather than standard UAE Corporate Tax principles.

The process typically involves the following steps:

The core formula is:

Top-Up Tax Percentage=15%−Effective Tax Rate\text{Top-Up Tax Percentage}=15\%-\text{Effective Tax Rate}Top-Up Tax Percentage=15%−Effective Tax Rate

UAE DMTT Example

Assume a UAE constituent entity has:

The calculation would work as follows:

This example illustrates how Pillar Two calculations can differ substantially from standard UAE Corporate Tax computations.

What Is the Substance-Based Income Exclusion (SBIE)?

The Substance-Based Income Exclusion is one of the most significant relief mechanisms under Pillar Two.

It reduces the amount of income exposed to top-up tax based on:

Businesses with genuine operational substance in the UAE generally benefit more from this relief than passive holding structures.

Groups with employees, offices, manufacturing facilities, or operational infrastructure in the UAE may significantly reduce their DMTT exposure through the SBIE mechanism.

Transitional Safe Harbour Reliefs

To ease the transition into Pillar Two compliance, the OECD introduced temporary safe harbour measures that may reduce DMTT liability for qualifying groups.

De Minimis Safe Harbour

A jurisdiction may qualify where:

This exemption can help multinational groups that have only limited business activities in the UAE. 

Simplified ETR Safe Harbour

This safe harbour allows businesses to rely on simplified accounting data instead of full GloBE calculations.

The transitional thresholds are:

Routine Profits Safe Harbour

This applies where Pillar Two income does not exceed the substance-based exclusion threshold.

Groups with strong operational presence and economic substance in the UAE may benefit significantly from this provision.

UAE DMTT Filing Obligations and Deadlines

Businesses falling within the scope of the DMTT must generally:

Important UAE DMTT Timelines

For example, a multinational group with a 31 December 2025 financial year-end would generally submit its first DMTT filing by 30 June 2027.

Records Businesses Should Maintain

DMTT compliance introduces significant new reporting and documentation requirements for corporate finance and tax teams. 

Affected groups should retain:

Most records should generally be retained for a minimum period of seven years.

Impact on UAE Free Zone Companies

Many businesses incorrectly assume that UAE free zone entities are automatically exempt from DMTT because qualifying income may benefit from a 0 percent Corporate Tax rate.

However, the Pillar Two effective tax rate calculation differs from standard UAE Corporate Tax calculations.

As a result, a Qualifying Free Zone Person (QFZP) may still fall within DMTT scope if it belongs to a multinational group that exceeds the OECD threshold.

This remains one of the most misunderstood areas of UAE Pillar Two compliance.

Why Multinational Groups Should Prepare Early

Although filing deadlines may appear distant, DMTT compliance requires extensive preparation across finance, accounting, and tax functions.

Large multinational groups may need to:

Businesses that delay preparation may face significant compliance difficulties later, particularly where transitional reliefs depend on demonstrating reasonable compliance measures.

Frequently Asked Questions