UAE Merger Control Rules 2026: AED 300 Million Trigger and Fast-closing Pitfalls for Abu Dhabi Deal Teams

The filing trigger is framed as two alternative tests, either of which can independently require notification. First is a turnover test: notification is mandatory when the combined turnover of the parties in the relevant UAE market in the latest fiscal year meets or exceeds AED 300 million. Second is a market-share test: notification is required when the merged entity would hold approximately 40% of the relevant market. Because market-share-based thresholds can be uncertain in practice, deal teams need to define the relevant market carefully and document their assumptions. This is also where the keyword topic—UAE merger control regulations—becomes operational for execution teams, not just legal teams.

Filing Timelines, Standstill Risk, and Who Must Notify

Timelines are the most common source of avoidable friction in 2026. One guide stresses that if a transaction meets either the AED 300 million turnover threshold or the 40% market-share threshold, notification must be made at least 90 days before closing, and the transaction cannot complete until clearance is received. Another source highlights that the Competition Law requires notification at least 30 days before contemplated completion, while the executive regulations provide additional detail on practical filing windows and the MoET review calendar. For Abu Dhabi dealmakers, the conservative takeaway is to budget additional lead time and to treat merger clearance as a closing condition that drives the critical path.

The 2026 Executive Regulations also clarify roles and enforcement posture. For acquisitions, the acquiring party or parties have the filing obligation, which matters when multiple bidders, consortium structures, or staged acquisitions are used. The Competition Department may investigate and review transactions that were not notified to the Ministry of Economy, either before or after completion, but only where the transaction meets the notification thresholds. The regulations do not create a general discretionary call-in power for below-threshold transactions; instead, they confirm enforcement for deals that should have been notified but were not. This makes threshold screening a first-step discipline, not a late-stage checklist.

Finally, deal teams should consider how merger control interacts with wider corporate changes taking effect in 2026. Amendments to the UAE Companies Law took effect on 1 January 2026, introducing formal redomiciliation mechanics that allow companies to migrate between mainland and free-zone jurisdictions while preserving legal continuity. In parallel, parties should be aware that the executive regulations extend beyond filings and set out how dominance is assessed, along with substantive factors the Ministry will apply in reviewing economic concentrations. Separately, for substantive antitrust violations under Article 24, the cited fine is not less than AED 100,000 and not more than 10% of the violating undertaking’s annual total sales in the UAE, reinforcing why planning and compliance need to be embedded early.