Substance or bust?  

Dr. Constantin Frank-Fahle, Marcel Trost and Varun Chablani analyse what India’s Tiger Global ruling means for global investment structures as it signals a fundamental shift in how tax authorities worldwide will scrutinise cross-border investment structures.

Corporate structures designed to minimise tax exposure face unprecedented scrutiny in today’s global tax environment. The Indian Supreme Court’s recent Tiger Global judgment demonstrates how aggressively tax authorities will challenge arrangements perceived as lacking commercial substance, even when technical treaty requirements appear satisfied. This landmark ruling carries implications far beyond India’s borders, providing critical lessons for international tax planning.

The stakes extend beyond immediate tax liabilities. Structures once considered defensible may now face retroactive challenge, while grandfathering provisions previously thought sacrosanct offer diminishing protection. The judgment demands fundamental reassessment of intermediate holding company strategies.

THE MAURITIUS ROUTE CHALLENGED

Foreign investment into India traditionally flowed through Mauritius entities, capitaliing on favourable treaty provisions exempting capital gains from taxation. This “Mauritius Route” dominated cross-border investment for decades, enabling tax-free capital appreciation for international investors.

The arrangement worked elegantly: capital gains escaped Mauritian taxation under domestic law while the India-Mauritius tax treaty prevented Indian taxation. For years, this structure withstood challenge despite questions about whether Mauritius entities possessed genuine commercial substance beyond treaty access.

Changes arrived in 2016 when treaty amendments introduced source-based taxation on capital gains, aligned with OECD guidance on treaty abuse and economic substance. The Tiger Global case tested these new principles against pre-amendment transactions.

THE TIGER GLOBAL TRANSACTION

The case involved three Mauritius-incorporated investment entities holding shares in Flipkart, a Singapore company deriving substantial value from Indian operations. When these entities sold their Flipkart stakes to a Luxembourg buyer as part of Walmart’s broader acquisition, Indian tax authorities challenged the arrangement.

Despite holding valid Mauritius tax residency certificates and maintaining board structures including Mauritius-resident directors, the entities faced withholding tax assessment. The critical issue: material transaction approvals required consent from US-based directors affiliated with Tiger Global Management, the fund’s US administrator.

Tax structures involving conduit entities across multiple jurisdictions must demonstrate genuine decision-making authority and commercial purpose at each level to withstand modern anti-avoidance scrutiny.

SUPREME COURT FINDINGS

The Supreme Court’s ruling against the taxpayers established three critical principles reshaping international tax planning:

Substance over form dominates. Beyond technical compliance with residency requirements, authorities will examine genuine decision-making location and commercial rationale. Where substantive control resides outside the claimed residence jurisdiction, treaty benefits face denial regardless of formal compliance.

Tax residency certificates prove necessary but insufficient. Holding valid certificates no longer guarantees treaty access. India’s General Anti-Avoidance Rules authorise examining transaction genuineness and commercial purpose, potentially overriding formal residency documentation.

Grandfathering provides limited protection. The Court rejected arguments that pre-amendment transactions merited protection, reasoning that conduit entities lacking genuine residency never qualified for treaty benefits. This interpretation potentially exposes numerous legacy structures to challenge.

STRUCTURAL RED FLAGS

The judgment highlights specific characteristics triggering heightened scrutiny. Investment entities holding only single-jurisdiction portfolios raise immediate questions about commercial rationale versus treaty shopping. Structures where ultimate decision-makers reside outside the claimed residence jurisdiction face particular vulnerability.

Contractual or practical requirements to transfer income to residents of other jurisdictions undermine beneficial ownership claims. Complex multi-jurisdictional chains involving traditional conduit locations like Mauritius, Cayman Islands, or Luxembourg invite examination of whether each level serves genuine commercial purpose.

INTERNATIONAL IMPLICATIONS

While addressing Indian domestic law, the judgment reflects broader global trends in tax enforcement. Similar principles appear in OECD Base Erosion and Profit Shifting initiatives, particularly Actions addressing digital economy challenges, harmful tax practices, treaty abuse, and transfer pricing alignment with value creation.

The Two-Pillar solution emerging from BEPS 2.0 further emphasises linking taxation with economic substance. Courts worldwide increasingly adopt revenue-protective interpretations of anti-avoidance provisions. Taxpayers can anticipate similar challenges in other jurisdictions, particularly emerging markets protective of their tax bases.

COMPLIANCE FRAMEWORK

Establishing defensible international structures demands comprehensive substance planning. Organisations must ensure genuine decision-making authority resides where tax residency is claimed, particularly for material transactions. Portfolio diversification across multiple jurisdictions demonstrates commercial purpose beyond single-market tax optimisation.

Physical presence requirements extend beyond nominal offices. Independent directors with actual authority prevent characterisation as mere conduits. Documentation establishing commercial rationale for each entity and jurisdiction proves essential.

For existing structures, immediate health checks identifying substance gaps enable proactive remediation before authorities challenge arrangements. Mock audit exercises test structure defensibility against modern anti-avoidance principles.

CONCLUSION

The Tiger Global judgment marks a watershed moment in international tax enforcement, signaling that formal treaty compliance alone no longer suffices. Tax authorities worldwide will increasingly scrutinise substance alongside form, potentially disregarding even grandfathered arrangements lacking genuine commercial purpose.

Successful international tax planning now requires embedding real economic activity at each structural level. While this increases complexity and cost, the alternative risks complete structure failure with retroactive tax exposure. Organisations maintaining robust substance while achieving legitimate tax efficiency will navigate this new environment successfully. Those relying purely on technical treaty compliance face mounting vulnerability.

Text by:

1. CONSTANTIN FRANK-FAHLE, LL.M., founding partner, emltc (Emerging Markets – Legal. Tax. Compliance.), Abu Dhabi/Dubai, UAE
2. MARCEL TROST, founding partner, emltc (Emerging Markets – Legal. Tax. Compliance.), Abu Dhabi/Dubai, UAE
3. VARUN CHABLANI, LL.M., ADIT (CIOT, UK), senior associate, emltc (Emerging Markets – Legal. Tax. Compliance.), Dubai, UAE