A multinational group with Saudi operations doesn’t get to opt out of Pillar Two’s reporting and compliance machinery just because Saudi Arabia hasn’t enacted a domestic top-up tax. The GloBE rules operate at the group level, and the compliance clock has already started for large groups with a December year-end. Here’s what actually needs attention on the ground, distinct from the broader GCC policy comparison covered in our companion article.
The Filing Clock Is Already Running
Under the OECD’s GloBE framework, the first GloBE Information Return (GIR) is due 18 months after the end of a group’s first in-scope fiscal year. For a multinational group with a standard December fiscal year-end and a fiscal year starting 1 January 2025 (the year most GCC DMTTs took effect), that put the first GIR deadline at 30 June 2026.
This obligation attaches to the group as a whole, based on where the ultimate parent entity or a designated filing entity sits — not to whether any individual jurisdiction, including Saudi Arabia, has its own domestic top-up tax. A group with Saudi subsidiaries needs Saudi-entity data in that global return regardless of Saudi Arabia’s own DMTT status.
Who This Actually Applies To
Pillar Two’s scope is defined at the ultimate parent level: multinational enterprise groups with consolidated annual revenue of €750 million or more in at least two of the four preceding fiscal years, per the OECD’s GloBE Model Rules. If your group is below that threshold, none of this applies — Pillar Two is not a general corporate tax change, it is a targeted regime for the largest multinational groups.
For groups that do meet the threshold, every constituent entity’s jurisdiction matters for the calculation, including a Saudi subsidiary, branch, or permanent establishment — even a small one, even one taxed favorably under Zakat, standard CIT, or an incentive regime like RHQ or an SEZ.
What Makes a Saudi Entity’s Position Different
A Saudi entity inside an in-scope group presents a specific modeling challenge: Saudi Arabia doesn’t apply a single uniform corporate tax rate the way many jurisdictions do. Depending on structure, a Saudi entity might be taxed under:
- 2.5% Zakat — for Saudi/GCC-owned entities
- Standard 20% Corporate Income Tax — for foreign-owned entities
- 0% CIT under the RHQ Program — for approved regional headquarters activities, for 30 years
- 5% CIT under an SEZ — for entities licensed and demonstrating economic substance in a special economic zone
Each of these produces a different effective tax rate for GloBE purposes, and several sit well below the 15% minimum on their face. Whether that actually triggers a top-up tax depends on the full GloBE effective tax rate calculation — which adjusts for timing differences, covered taxes, and other technical mechanics — not simply the headline statutory rate. This is exactly the kind of calculation that needs a qualified Pillar Two specialist rather than a back-of-envelope comparison to 15%.
Transitional Safe Harbours
The OECD’s GloBE framework includes transitional relief provisions — commonly referred to as transitional Country-by-Country Reporting (CbCR) safe harbours — designed to reduce the immediate compliance burden for groups during the framework’s early years, allowing simplified tests based on existing CbCR data rather than a full GloBE calculation in every jurisdiction from day one. Whether a group’s Saudi operations qualify for this relief in a given period is a fact-specific determination under the OECD’s own published guidance, not something to assume applies automatically.
Transitional safe harbours are time-limited and condition-based. A group that qualified in an earlier period may not automatically continue to qualify as those transitional windows close — this needs to be reassessed for each reporting period, not assumed to persist.
What to Actually Do
- Confirm group-level scope — is your ultimate parent’s group at or above the €750 million consolidated revenue threshold in at least two of the last four years?
- Inventory every Saudi constituent entity — subsidiaries, branches, and permanent establishments — and identify which Saudi tax regime applies to each (Zakat, standard CIT, RHQ, or SEZ).
- Determine your GIR filing entity and deadline based on your group’s fiscal year-end, not Saudi Arabia’s tax year.
- Check transitional safe harbour eligibility for each relevant period rather than assuming continued qualification.
- Model the actual GloBE effective tax rate for Saudi entities with a qualified specialist — statutory rate comparisons to 15% are a starting point, not a conclusion.
Frequently Asked Questions
18 months after the end of the group’s first in-scope fiscal year, per the OECD’s GloBE framework. For a group with a December 2025 fiscal year-end, that put the first deadline at 30 June 2026.
Yes. The GIR obligation attaches to the group as a whole based on where the filing entity sits, not to whether each individual jurisdiction has enacted its own DMTT. Saudi entity data is needed in the return regardless.
Consolidated annual revenue of €750 million or more in at least two of the four preceding fiscal years, measured at the ultimate parent group level, per the OECD’s GloBE Model Rules.
Potentially — both sit below the 15% GloBE minimum on a headline basis. Whether a top-up actually applies depends on the full GloBE effective tax rate calculation, which adjusts for covered taxes and timing differences, not just the statutory rate.
No. Transitional CbCR safe harbours are time-limited and condition-based under OECD guidance, and eligibility should be reassessed for each reporting period rather than assumed to continue from an earlier period.
- The first GloBE Information Return deadline was 30 June 2026 for in-scope groups with a December 2025 fiscal year-end — this obligation applies regardless of Saudi Arabia’s own DMTT status.
- Pillar Two applies only to groups with €750 million+ in consolidated annual revenue, assessed at the ultimate parent level.
- Saudi entities can sit under Zakat (2.5%), standard CIT (20%), RHQ (0%), or SEZ (5%) — each produces a different GloBE effective tax rate calculation, not a simple statutory-rate comparison.
- Transitional CbCR safe harbours can reduce compliance burden but are time-limited and must be reassessed each period, not assumed to persist.
- Groups with Saudi operations should inventory every constituent entity’s tax regime and model the actual GloBE effective tax rate with a qualified specialist rather than estimating from headline rates.
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Sources
- OECD — Global Anti-Base Erosion Model Rules (Pillar Two) — official GloBE framework, scope, and filing mechanics
- OECD — Members of the OECD/G20 Inclusive Framework on BEPS (updated 5 December 2025) — Saudi Arabia’s Inclusive Framework membership
- OECD — Administrative Guidance on GloBE Rules, Transitional Qualified Status — transitional safe harbour mechanics
- PwC Middle East — Pillar Two (Global Minimum Tax) — regional compliance guidance
This article is based on the OECD’s official GloBE Model Rules, Inclusive Framework membership records, and administrative guidance on transitional safe harbours, cross-checked against Middle East-specific commentary from PwC. Pillar Two compliance obligations are highly fact-specific to each group’s structure and fiscal year; this article is general information only and does not constitute tax advice. Confirm your group’s specific filing obligations with a qualified international tax advisor. dariba.co is an independent platform with no consulting relationships.