Cross-Border Structuring and the Importance of Economic Substance in the EU
Cross-border structuring is a normal and often necessary feature of international business. Companies expand into new markets, centralise functions, protect intellectual property, or organise financing across jurisdictions. Legal entities are established to support commercial activity.
What has changed in recent years is the regulatory expectation attached to those structures. Incorporation alone is no longer sufficient. Increasingly, authorities require that legal form reflects economic reality.
Substance has moved from being a technical tax concept to becoming a core principle of corporate governance.
The OECD and the Global Shift Toward Real Activity
The modern emphasis on substance gained momentum with the OECD’s Base Erosion and Profit Shifting project.
The Organisation for Economic Co-operation and Development, in its BEPS Action 5 Final Report, addressed the concern that certain preferential regimes allowed profits to be allocated to jurisdictions without corresponding economic activity (OECD, 2015). The report linked access to tax advantages with the requirement for substantial activity in the relevant jurisdiction.
This marked a structural shift. The focus moved from formal compliance to the location of genuine value creation. Decision-making, personnel, operational expenditure, and business functions became central to evaluating legitimacy.
Although BEPS is framed in tax terms, the broader message is clear: legal entities must reflect real commercial activity.
The EU Anti-Tax Avoidance Directive
Within the European Union, substance principles are embedded in binding legislation.
Directive (EU) 2016/1164, commonly known as the Anti-Tax Avoidance Directive (ATAD), introduced measures aimed at countering arrangements that undermine the integrity of the internal market (European Union, 2016).
A central provision is the General Anti-Abuse Rule (Article 6), which allows Member States to disregard arrangements that are not genuine and are put in place primarily to obtain a tax advantage. An arrangement may be regarded as non-genuine where it does not reflect economic reality.
This is significant. Substance is not merely recommended; it forms part of enforceable EU law.
European Parliament Discussions on Shell Entities
The debate has continued at EU level through initiatives addressing so-called shell or letterbox entities.
In 2023, the European Parliament adopted a legislative resolution on proposals aimed at preventing the misuse of shell entities for tax purposes. The discussion centres on entities that lack indicators of minimum substance, such as premises, active bank accounts within the Union, or resident directors and employees (European Parliament, 2023).
Although legislative negotiations evolve over time, the policy direction is consistent. Entities engaging in cross-border activity are expected to demonstrate tangible presence and operational credibility.
What Substance Means in Practice

Substance is not defined by a single threshold. It is assessed through coherence.
In practical terms, this may involve:
- identifiable decision-making taking place in the jurisdiction
- qualified personnel performing core income-generating activities
- appropriate operational infrastructure
- a commercial rationale consistent with group structure
A company that exists solely as a conduit, without meaningful activity or oversight, may face challenges under anti-abuse principles or future anti-shell measures.
The underlying question is straightforward: does the structure reflect the business, or is it detached from it?
The table below summarises the indicators that distinguish a substantive structure from a conduit or letterbox entity.
| Substance indicator | Substantive structure | Conduit / letterbox entity |
|---|---|---|
| Decision-making | Taken in the jurisdiction by those with authority | Directed elsewhere; local role nominal |
| Personnel | Qualified staff performing core income-generating activities | Few or no resident employees |
| Infrastructure | Appropriate premises and operational resources | No genuine premises or active local presence |
| Commercial rationale | Consistent with the wider group and real activity | Exists primarily to obtain a tax advantage |
| Governance and oversight | Demonstrable and credible | Absent or detached from the business |
Bringing this coherence to a group is partly a structuring question and partly a governance one. The right accounting, tax and advisory support can help confirm that legal form and economic reality stay aligned as a structure evolves.
Beyond Tax: Governance and Risk
While substance emerged from tax reform, its implications extend further.
Financial institutions, investors, and counterparties increasingly assess governance quality and operational credibility. Structures that lack demonstrable substance may encounter:
- enhanced due diligence
- difficulty maintaining banking relationships
- reputational scrutiny
- challenges accessing treaty or directive benefits
Substance has therefore become a broader governance standard. It signals whether a structure is built to support real activity or merely to achieve formal outcomes.
Conclusion
Cross-border structuring remains legitimate when aligned with commercial reality. International expansion and group organisation are integral to modern business.
However, OECD standards, the EU Anti-Tax Avoidance Directive, and ongoing European Parliament initiatives collectively reinforce a consistent principle: legal form must correspond to economic substance.
In the current regulatory environment, incorporation is only the starting point. The decisive question is whether the structure reflects genuine activity, governance, and decision-making.
If you are reviewing an existing cross-border arrangement or planning a new one, it is worth speaking to an advisor before relying on legal form alone.
References (Official Sources)
Organisation for Economic Co-operation and Development. BEPS Action 5 – Countering Harmful Tax Practices.
https://www.oecd.org/tax/beps/beps-actions/action5/
European Union. Directive (EU) 2016/1164 (Anti-Tax Avoidance Directive – ATAD).
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32016L1164
European Parliament. Legislative resolution of 17 January 2023 on preventing the misuse of shell entities for tax purposes.
https://www.europarl.europa.eu/doceo/document/TA-9-2023-0004_EN.html
