UAE Domestic Minimum Top-Up Tax: Registration Requirements Now Published
The UAE has released formal registration requirements for the 15% domestic minimum top-up tax, with deadlines businesses must now act on.
# What the UAE Has Just Released
The UAE has published the formal registration requirements for its Domestic Minimum Top-Up Tax (DMTT), a 15% levy that applies to multinational enterprise groups with consolidated annual revenues of at least EUR 750 million. The requirements were released, as reported by KPMG.
This is the implementation step that converts the UAE's Pillar Two commitment from a policy position into a live compliance obligation. Groups that fall in scope can no longer defer the question of whether they need to register.
# Who Falls in Scope
The DMTT targets constituent entities of multinational groups, meaning individual UAE-based subsidiaries, holding companies and branches that belong to a group meeting the revenue threshold. Free zone entities are included. A company sitting inside DMCC, JAFZA, DIFC, ADGM or any other free zone does not automatically sit outside the charge simply because it benefits from a zero or preferential rate; the top-up mechanism is designed precisely to close that gap to a 15% effective rate.
Groups with UAE entities that generated low effective tax rates under the standard corporate tax regime (under current rules, 9% above AED 375,000), or that relied heavily on free zone incentives, face the greatest exposure. The DMTT calculates the shortfall between a group's actual effective tax rate in the UAE and the global 15% minimum, then charges that difference locally.
The FTA's concurrent clarification of small business relief rules, published around the same time by Gulf Business, is largely irrelevant here. Small business relief applies to groups well below the EUR 750 million threshold. The two measures occupy different parts of the corporate tax landscape.
# What the Registration Process Involves
Specific procedural details, including the registration portal, required documentation and deadlines, are set out in the KPMG briefing linked above. At a minimum, groups should expect to identify all UAE constituent entities, confirm each entity's role within the group structure and calculate the jurisdictional effective tax rate for the UAE to assess whether a top-up charge arises.
The registration obligation falls on the constituent entity, not the group parent. That creates a practical coordination challenge: a UAE CFO or finance team may need information from a group headquarters in another jurisdiction to complete a local filing accurately.
Late or inaccurate registration carries its own risk. The UAE's Federal Tax Authority has demonstrated a consistent willingness to issue penalties under the corporate tax framework, and there is no structural reason to expect a more lenient approach to DMTT non-compliance.
# What to Do About It
Groups meeting the EUR 750 million revenue threshold should take four steps immediately.
First, confirm whether any UAE entity, including free zone entities, is a constituent entity of an in-scope group. Second, retrieve consolidated revenue data for the most recent fiscal year to verify threshold status. Third, calculate the UAE jurisdictional effective tax rate; if it falls below 15%, a top-up charge almost certainly applies and the quantum needs to be modelled. Fourth, engage a tax adviser with Pillar Two experience to navigate the registration portal and document the position before any published deadline passes.
Groups that have already prepared GloBE (Global Anti-Base Erosion) information returns for other jurisdictions will have most of the underlying data to hand. The additional work is adapting that analysis to the UAE's specific registration format.
Groups that have not yet begun any Pillar Two compliance work should treat this publication as the trigger to start.