Cross-Border Substance Requirements in 2026: What Changed and Where
Recent shifts in Luxembourg, Singapore, the UAE, and Switzerland have redefined minimum substance for family-office structures.
Key takeaways
- —Headcount and physical-office tests are now consistently audited, not just disclosed.
- —Singapore's Section 13O and 13U regimes tightened minimum AUM and fund-management criteria in 2024.
- —The UAE's Economic Substance regulations now require demonstrable revenue generation, not just licence presence.
- —Luxembourg ATAD III implementation moved from optional to enforced for holding structures.
Substance has been a regulatory talking point for a decade; it became a regulatory practice over the past three years. Family offices that built jurisdictional structures on minimum-headcount assumptions are finding those assumptions audited rather than disclosed. The remediation cost — when discovered late — typically exceeds what proper substance would have cost upfront.
Singapore: 13O and 13U recalibrated
Singapore's family-office incentives under Sections 13O and 13U were updated in April 2024. Minimum AUM thresholds rose, the requirement for at least one investment professional based in Singapore is now enforced rather than disclosed, and local business spending must be evidenced. The regimes remain among the most attractive globally; they no longer reward thinly staffed operations.
UAE and Luxembourg: from disclosure to evidence
The UAE's Economic Substance Regulations, originally introduced in 2019, are now enforced with audit follow-up. Family offices operating through DIFC or ADGM structures should expect requests for evidence of board meetings held in jurisdiction, qualified employees on the ground, and revenue arising from local activity.
Luxembourg's implementation of ATAD III — the EU's Unshell Directive — moved from policy debate to enforcement for holding structures. Companies failing the gateway tests on income, premises, and personnel risk losing tax-treaty access. The remediation pathways are well-defined; the cost of ignoring them is not.
Stay informed
Weekly insights for family office professionals.
No spam. Unsubscribe anytime.