Singapore Trust Structures for Southeast Asian HNWIs: 2026 Regulatory Update

April 2026 marks a turning point for wealth management in Singapore. The jurisdiction has formalised a dual-track system: the government is demanding significantly higher transparency while simultaneously defending its core anti-forced heirship protections. The big move here is the full rollout of the Corporate Service Providers (CSP) Act 2024. We now have a dedicated Registrar of Corporate Service Providers with the legal authority to investigate trustees under Part 7 of the Trustees Act 1967.

Under the CSP Act, every service provider must be ACRA-registered. If a trustee fails to meet AML/CFT or transparency standards, the Ministry of Law has bumped the maximum fine to S$25,000. There is also a new record-keeping burden. Trustees who step down or cease their roles must now keep original trust instruments and letters of wishes for at least five years after they leave. It is no longer a matter of simply handing over the keys and walking away.

Singapore’s 2026 framework didn't happen in a vacuum; it is a direct response to tightening tax nets in neighbouring countries. Thailand’s Revenue Department recently overhauled its tax code, moving to tax foreign-sourced income on a global basis for anyone residing in the country for 180 days or more. That effectively shut down a long-standing loophole. Meanwhile, Indonesia is pushing hard on tax compliance by using the Common Reporting Standard (CRS) to its full extent.

In this context, Singapore’s 17% corporate rate and structured wealth exemptions are a major draw. By the end of 2024, the number of Single Family Offices (SFOs) here climbed past 2,000, with total Assets Under Management (AUM) hitting roughly S$66.8 billion. Our data shows that 77% of these assets come from outside Singapore. This is a massive flight of capital toward legal certainty and recognised tax incentive schemes.

The SFO remains the preferred vehicle for families formalizing their holdings. The good news is that the Monetary Authority of Singapore (MAS) has brought background screening in-house. By moving away from third-party reports, they’ve managed to get approval timelines down to about three months for clean applications.

However, the criteria for Section 13O and 13U tax exemptions have become more sophisticated. You now need a minimum AUM of S$20 million, and MAS expects to see 'Designated Investments' (DI) ready at the point of application. Substance requirements are also non-negotiable. For a 13O fund, the minimum Local Business Spending (LBS) is S$200,000 annually, and that figure scales up based on your AUM. If the family is looking at legacy planning, the Philanthropy Tax Incentive Scheme (PTIS) is worth a look. It allows SFOs to claim 100% tax deductions for overseas donations, capped at 40% of the SFO's statutory income.

SFO Eligibility: Pre-2026 vs. 2026 Framework

The most effective structures we are seeing right now combine the Trustees Act with the Variable Capital Company (VCC). The VCC is a game-changer because of its sub-fund capability. You can achieve statutory segregation of assets and liabilities, meaning you can separate different business ventures or family branches under one corporate umbrella without the risks bleeding into each other.

Typically, we have a Singapore trust hold the VCC shares to trigger the anti-forced heirship protections found in Section 90(2) of the Trustees Act. But families need to be mindful of the clock. Singapore still enforces a rule against perpetuities, meaning trusts are capped at 100 years. You need precise drafting to handle how assets are distributed or restructured once that century mark hits. By layering a Singapore Trust, a VCC, and an SFO, families can lock in 13O/13U exemptions while staying protected from regional tax shifts.