Pillar Two: Practical Implications for Holding Structures
The OECD’s Pillar Two global minimum tax framework is rapidly reshaping how multinational groups structure their international operations, holding companies, financing arrangements, and cross-border tax planning strategies.
For international groups, family offices, investment structures, and multinational businesses, Pillar Two is no longer simply a future tax development — it is now a strategic governance, structuring, and operational consideration that may materially impact effective tax rates, group profitability, substance requirements, and jurisdictional decision-making.
As implementation continues across multiple jurisdictions, businesses should already be reassessing whether existing holding structures remain fit for purpose in the evolving international tax environment.
What Is Pillar Two?
Pillar Two forms part of the OECD’s Base Erosion and Profit Shifting (BEPS) 2.0 initiative and introduces a global minimum effective tax rate of 15% for large multinational enterprise (MNE) groups.
The framework is designed to ensure that multinational groups pay a minimum level of taxation regardless of where profits are generated or booked.
While implementation varies by jurisdiction, the framework generally applies to multinational groups with consolidated annual revenues exceeding EUR 750 million.
However, even groups below these thresholds are increasingly reviewing structures proactively due to:
- investor expectations,
- banking scrutiny,
- governance considerations,
- future scalability,
- and evolving international tax standards.
Why Holding Structures Are Being Reassessed
Historically, holding company structures were often designed around:
- tax efficiency,
- treaty access,
- dividend flows,
- intellectual property ownership,
- financing arrangements,
- and cross-border operational flexibility.
Pillar Two changes the strategic equation.
The focus is now shifting toward:
- effective tax rates,
- economic substance,
- operational alignment,
- governance,
- transparency,
- and defensible commercial rationale.
Many traditional low-tax or zero-tax structures may now provide reduced strategic value if top-up taxes apply elsewhere within the group.
Key Practical Implications for International Groups
1. Substance Is Becoming Increasingly Important
Jurisdictions offering favourable tax environments without sufficient operational substance are facing increasing scrutiny.
Groups should assess:
- management and control functions,
- local decision-making,
- operational activity,
- staffing levels,
- governance arrangements,
- and commercial justification for each entity within the structure.
Pillar Two increases pressure on businesses to ensure that structures reflect genuine economic activity rather than purely tax-driven arrangements.
2. Effective Tax Rate Monitoring Is Critical
Businesses should begin modelling:
- jurisdictional effective tax rates,
- deferred tax impacts,
- top-up tax exposure,
- and consolidated group tax positions.
This requires closer coordination between:
- tax teams,
- finance departments,
- legal advisors,
- and operational management.
Many groups are now implementing internal Pillar Two readiness programmes to assess risk exposure and future restructuring requirements.
3. Holding Jurisdictions Must Be Re-Evaluated
Traditional holding company jurisdictions may no longer provide the same strategic advantages under the new framework.
Businesses should reassess:
- existing holding structures,
- financing entities,
- IP structures,
- treasury arrangements,
- and regional headquarters models.
The discussion is increasingly moving from:
“Where is the lowest tax?”
to:
“Which structure is operationally sustainable, scalable, compliant, and internationally defensible?”
4. Governance & Transparency Expectations Are Increasing
Tax governance is becoming a board-level issue.
Investors, banks, regulators, auditors, and counterparties are increasingly focused on:
- transparency,
- governance,
- reputational risk,
- and long-term sustainability of international structures.
Businesses should ensure:
- proper documentation,
- governance oversight,
- internal reporting,
- and strategic alignment between tax and operational structures.
5. Family Offices & Private Structures Are Also Reviewing Exposure
Although Pillar Two mainly targets large multinational groups, many family offices and private investment structures are reviewing:
- international asset holding arrangements,
- cross-border investment vehicles,
- succession structures,
- and regional tax exposure.
This is particularly relevant for internationally mobile families and private investment groups with multi-jurisdiction operations or assets.
6. Operational Structures Matter More Than Ever
Businesses can no longer treat tax structuring separately from operational reality.
The most resilient international groups are increasingly aligning:
- corporate governance,
- management functions,
- operational infrastructure,
- regional leadership,
- and tax strategy.
This trend is likely to continue as global tax transparency and international cooperation increase.
Practical Steps Businesses Should Be Taking Now
Groups should consider:
- conducting Pillar Two impact assessments,
- reviewing effective tax rates across jurisdictions,
- reassessing holding structures,
- reviewing governance frameworks,
- evaluating substance requirements,
- strengthening operational alignment,
- and preparing for increased reporting obligations.
Early strategic planning may significantly reduce future restructuring costs and operational disruption.
Pillar Two Is Not Only a Tax Issue
Pillar Two is fundamentally reshaping international structuring strategy.
For many groups, the discussion is no longer purely about tax optimisation, but about:
- long-term sustainability,
- international credibility,
- governance,
- operational resilience,
- investor confidence,
- and scalable international growth.
Businesses that proactively adapt are likely to be significantly better positioned within the next phase of the global business environment.
How Aliant Advisory Supports International Groups
Aliant Advisory supports multinational businesses, family offices, private clients, investment groups, and international corporate structures with:
- international structuring advisory,
- corporate governance support,
- tax coordination,
- operational restructuring,
- strategic advisory,
- cross-border expansion planning,
- and global business solutions.
Through our international network of legal, accounting, corporate, tax, and strategic advisory professionals, we help businesses navigate evolving international regulatory and tax environments with practical, commercially focused solutions.
Contact Aliant Advisory Team for a Free Consultation