A multinational procurement team screens its new supplier. The direct counterparty is clean. Then someone looks one level deeper. A listed person holds forty-three percent. A related trust holds nine percent more. Together, they cross the threshold – and the deal is blocked under UK financial sanctions before a contract is signed. The question that follows is almost always the same: does the same analysis apply under EU rules?
The answer depends on which regime governs. Under the 50 percent rule (the principle that an entity owned in the aggregate by one or more designated persons to the extent of 50 percent or more is itself treated as subject to the same restrictions), OFSI and the EU share a common ownership floor but diverge sharply on the control test that sits alongside it. As of July 2026, both the UK and EU regimes treat the 50 percent aggregate ownership threshold as a hard trigger – but the EU's control analysis is wider and more explicitly codified, while OFSI's approach requires careful reading of guidance that has evolved through successive iterations.
This analysis examines how the two regimes define ownership, how each constructs the control test that supplements it, where they diverge in practice, and what a cross-border compliance team must do differently when a counterparty sits in the grey zone between the two.
Why ownership analysis sits at the centre of sanctions compliance
Ownership analysis is the mechanism by which a sanctions regime extends its reach beyond the specific individuals and entities listed on a consolidated list to the corporate structures those persons control. Without it, a designated billionaire could simply interpose a holding company and continue to move assets freely. Both the UK and EU regimes reject that result. They do so through a combination of a bright-line ownership threshold and a more fact-sensitive control test.
The stakes are not abstract. A single failure to identify that a supplier or counterparty is caught through ownership can expose a financial institution, a trading company, or an insurer to significant civil penalties – and in the UK, potentially to a criminal referral where the breach was deliberate. In our cross-border practice, the pattern we see most often is not a client that knowingly transacts with a designated person. It is a client that transacted with an entity nobody thought to trace back through its ownership chain. That gap is precisely where the 50 percent rule and ownership analysis bites hardest.
Ownership analysis also matters at the transaction stage. M&A teams acquiring targets in high-risk sectors, trade-finance banks extending credit, and commodity traders agreeing supply terms all need a clear picture of whether any designated person sits in the ownership chain – at any level. A deal that closes on incomplete diligence carries the full liability risk even if the gap was not visible from the surface.
The position above covers the standard case. Your facts – the counterparty, the jurisdiction of incorporation, the specific thematic sanctions programme in play – change the analysis. To discuss your screening programme or a specific counterparty, contact Calder & Vance at info@caldervance.com.
How OFSI defines the ownership test
OFSI administers UK financial sanctions under the Sanctions and Anti-Money Laundering Act 2018 ("SAMLA") and the thematic regulations made under it. The ownership test asks whether designated persons, individually or in aggregate, hold 50 percent or more of the shares or voting rights of the entity under review, or are otherwise entitled to 50 percent or more of its profits or assets on a winding-up.
These four sub-limbs – shares, voting rights, profit entitlement, and asset entitlement on winding-up – are cumulative and alternative. A holding that does not cross the threshold on shares might still cross it on voting rights if shares carry different voting weights. OFSI's guidance makes clear that the analysis must be run across all four limbs, not just the most obvious one. In practice, this means that a convertible instrument or a preference share structure can move a designated person across the threshold without anyone holding a majority stake in ordinary-share terms.
Aggregation is the second layer. The threshold is tested by adding up all holdings by all designated persons, whether those persons are individually below the fifty-percent mark or not. Two sanctioned shareholders each holding twenty-six percent of the same entity together cross the threshold and the entity is treated as frozen. This aggregation rule catches joint-venture structures and consortium holdings that would otherwise appear clean on an individual-shareholder basis.
OFSI's guidance also addresses indirect ownership. A chain of entities is traced through successive layers; a designated person who owns a majority of an intermediate company that in turn owns a majority of the target is treated as owning the target indirectly for these purposes. The guidance does not prescribe how many layers to trace, but OFSI's enforcement posture has made clear that a superficial one-layer review is insufficient for complex holding structures.
How the EU constructs the equivalent test
The EU's equivalent test, set out in the Council's consolidated guidance on ownership and control under EU sanctions regulations, shares the 50 percent ownership threshold but layers on top of it a structured control analysis that goes beyond what OFSI's guidance currently makes explicit. The EU approach asks not only whether a designated person crosses the ownership threshold but also whether that person, individually or jointly with others, exercises control over the entity by other means.
Control in the EU sense includes: the ability to appoint or remove a majority of the board; the ability to direct the exercise of voting rights above the ownership floor; the ability to exercise dominant influence through a shareholder agreement or articles of association; and any other mechanism by which a designated person can determine the strategic or operational direction of the entity. This is a wider net than the four financial-entitlement limbs that OFSI makes explicit.
The EU's approach to indirect ownership is also more formally elaborated. The guidance describes a "layered entity" analysis in which the investigator traces ownership through the chain and applies the control indicators at each level. An entity that is majority-owned by a company that is itself majority-owned by a designated person is caught even if the designated person has no direct holding in the target. Practitioners advising on EU matters note that this layered analysis is intended to be exhaustive rather than indicative: there is no prescribed stopping point in the guidance, and the implicit expectation is that any layer in which a designated person holds a material interest should be examined.
One structural difference matters for cross-border businesses. The EU does not maintain a single published list of entities that have been assessed and found to be caught through ownership in the way that OFSI sometimes communicates its analysis. This means that the EU compliance team must re-run the analysis itself each time a designated person's holdings change, rather than relying on an official determination.
Where do OFSI and the EU diverge on the 50 percent rule and ownership analysis?
The most consequential divergence is on the control test. OFSI's current guidance frames the ownership analysis around the four financial-entitlement limbs and treats control as a separate, supplementary concept that applies where ownership cannot be established. The EU guidance, by contrast, treats ownership and control as two branches of a single composite test, each capable of independently triggering the restriction. This means that an entity with a designated person holding forty-eight percent but exercising effective board control through a shareholder agreement is clearly caught under the EU approach – and the position under OFSI requires more careful analysis of the specific guidance in force at the relevant time.
The second divergence is in aggregation mechanics. Both regimes aggregate holdings across all designated persons, but the EU guidance explicitly addresses the aggregation of control indicators – not just ownership percentages. Two designated persons who each have minority stakes but together appoint a majority of the board may be found to exercise joint control under the EU approach even where neither the ownership threshold nor the board-appointment power is individually crossed. OFSI's guidance is less explicit on this point, though its broad reading of "ownership or control" in SAMLA would likely produce a similar result in a clear case.
Third, the regimes diverge on the treatment of listed entities acting through agents and nominees. The EU guidance addresses nominee arrangements directly, treating a nominee's holding as attributable to the beneficial owner for threshold purposes. OFSI's guidance is more general, but OFSI has been clear in its enforcement communications that nominee structures do not circumvent the ownership test. From a practical compliance standpoint, the analysis should apply the stricter position regardless of which regime is technically applicable.
A fourth area of divergence is geographic scope. The UK regime applies to UK persons and entities incorporated in the UK, and to conduct that occurs in the UK. The EU regulations apply to EU persons, EU-incorporated entities, and to conduct occurring within the EU. A corporate group that operates in both jurisdictions is simultaneously subject to both tests. Where the two analyses produce different results – for instance because the control test triggers under the EU regime but not under OFSI's current guidance – the cross-border business faces the question of how to manage the difference operationally. In our experience, the only defensible approach is to apply the stricter test across the group.
If a transaction has already been flagged, or a screening result is producing inconsistent outcomes across your UK and EU entities, an early review can preserve options that narrow with time. Reach our team at info@caldervance.com.
Which regime is stricter on the 50 percent rule and ownership analysis?
In most practical situations, the EU regime's explicit and broader control test makes it the stricter standard. The EU guidance's structured enumeration of control indicators – board appointment, dominant influence through agreement, direction of voting rights, and analogous mechanisms – captures edge cases that OFSI's guidance addresses less systematically. A designated person with a forty-seven percent stake and a contractual right to appoint the chief executive is more clearly caught under the EU approach than under OFSI's guidance as currently drafted.
That said, "stricter" is not a fixed label. The UK regime's four-limb ownership test covers profit entitlement and asset entitlement on a winding-up in explicit terms that go beyond what some EU analysts read the EU guidance as covering in those specific dimensions. There are therefore narrow but real fact patterns in which OFSI's test catches something the EU control analysis would miss.
The practical implication for cross-border compliance teams is that neither regime should be treated as a ceiling. A screening and due-diligence programme that runs only one regime's analysis will produce gaps. The cross-regime standard – applying the stricter test in each dimension – is the only approach that eliminates the risk of a regime-specific failure. We regularly advise financial institutions and corporate groups on how to build a single ownership-and-control assessment methodology that satisfies both OFSI and the EU Council guidance simultaneously.
A secondary implication concerns third-country regimes. OFAC's 50 percent rule (the US equivalent, applied under IEEPA authority and OFAC guidance) uses a threshold-only approach without an explicit enumerated control test of the type found in EU guidance. A US-headquartered group operating in Europe therefore faces the situation where its OFAC-cleared structure may still be caught under the EU control test. This extraterritorial complexity is a recurring feature of multi-regime ownership analysis, and it is precisely the kind of gap that a point-in-time screening review will not surface without explicit cross-regime mapping.
Risk flags and when to involve counsel
The risk flags that most reliably indicate a need for specialist review fall into four categories. First, any holding structure in which a designated person holds between thirty and forty-nine percent of an entity should trigger a full four-limb OFSI analysis and a parallel EU control assessment. The zone between thirty and fifty percent is where aggregation with other designated persons is most likely to cross the threshold unexpectedly.
Second, nominee, trust, and discretionary-vehicle structures require heightened review. Both OFSI and the EU look through nominee arrangements; a beneficial ownership analysis is always necessary where the registered holder is a nominee or a professional trustee. Offshore structures with limited disclosure are particularly high-risk because the underlying beneficial ownership data may not be readily available from public sources.
Third, joint-venture arrangements in which designated persons hold interests alongside clean partners warrant specific attention. The EU control test – in particular the joint-control indicators around board appointment and shareholder agreements – can catch a joint venture even where the designated person's stake is well below fifty percent. The joint-venture agreement itself, including any reserved-matter veto, should form part of the ownership analysis.
Fourth, M&A transactions involving targets in high-risk sectors or regions should run a full beneficial-ownership trace before signing. Post-acquisition discovery of a designation in the ownership chain creates a compliance obligation that can affect the entire acquired business. The point of earliest intervention is always pre-signing due diligence, not post-completion remediation.
A common myth in cross-border compliance is that a clean result from an automated screening tool against a consolidated list is sufficient to establish that an entity is not caught by the ownership and control rules. It is not. Automated screening tools match names and identifiers against listed persons; they do not run the ownership chain analysis described in this article. A listed entity identified through OFSI or EU guidance as caught by the fifty-percent rule will not necessarily appear as a red flag in a name-matching tool unless the tool has been configured to screen for it explicitly. Manual beneficial-ownership analysis remains a necessary complement to automated screening for any counterparty where the ownership structure is not transparently simple.
Related practices
- Sanctions compliance audit and testing – stress-testing screening logic and ownership-analysis methodology across regimes
- Name and entity screening under the EAR – how BIS screening obligations intersect with OFAC and EU controls
- Name and entity screening: BIS/EAR and EU compared – cross-regime screening divergence for cross-border exporters
What a cross-border compliance programme should do differently
A compliance programme that addresses only the OFSI test or only the EU control test will produce structural gaps for any business that operates in both jurisdictions. In our experience, the most effective approach is to design the ownership-analysis methodology against both standards from the outset and to run a single consolidated output that records the result under each regime.
The methodology should cover, as a minimum: beneficial ownership tracing to the natural-person level; aggregation of all designated-person holdings at each intermediate level; a four-limb OFSI assessment for each intermediate entity; a parallel EU control assessment covering board-appointment rights, shareholder agreements, and other dominant-influence indicators; and a cross-regime conclusion that identifies the stricter result. Where a designated person is identified at any level, the analysis should confirm whether a general authorisation or a specific licence is required before proceeding.
Record-keeping is a practical necessity, not just a regulatory obligation. Both OFSI and the relevant EU thematic regulations require financial institutions and others to maintain records of the steps taken to comply with screening and ownership-analysis obligations. A documented ownership-analysis file – showing the data sources used, the methodology applied, and the conclusion reached – is the primary defence in any subsequent enforcement enquiry. Where the conclusion is uncertain, legal advice should be obtained and documented before any transaction proceeds.
Periodic refresh is equally important. A clean ownership analysis conducted at the time of onboarding does not remain valid indefinitely. Designations are issued and updated without notice; ownership structures change through transfers, inheritance, and restructuring; and OFSI's guidance itself evolves. A compliance programme that runs ownership analysis only at the point of first engagement will miss subsequent changes. Trigger-based re-screening – activated by a new designation in a relevant programme, a reported change in ownership of a counterparty, or a material transaction – is the operationally sound approach.
In a recent matter, a financial-services business operating across EU and UK entities had maintained separate screening processes, each calibrated to its own regulatory environment. When a new designation was issued, the EU entity correctly flagged a counterparty through the control test; the UK entity's screening did not trigger because the specific control indicator was not covered in its ownership analysis template. We reviewed the firm's methodology, mapped the divergence between OFSI and EU guidance, and redesigned the programme to a single consolidated standard. The firm was able to satisfy both regulators' expectations from a single integrated process.