Variation of Trusts in Hong Kong: When and How to Change a Trust

Why Trusts Need to Change

A trust established today may serve its purpose well for years, but family circumstances, tax laws, and investment environments change. A trust created for the benefit of young children may need to be revised when those children become adults with different needs. Tax law changes in the settlor's home jurisdiction may make the current trust structure inefficient. The trustee may need to expand its investment powers. Or a family dispute may require the trust to be restructured to accommodate competing interests.

Hong Kong law provides several mechanisms by which a trust may be varied, depending on the nature of the proposed change and the consents available.

Variation by Consent: The Rule in Saunders v Vautier

The most straightforward way to vary a trust is by the unanimous consent of all beneficiaries who are of full age and mental capacity and together hold the entire beneficial interest in the trust. This is known as the rule in Saunders v Vautier, and it applies in Hong Kong as a matter of common law.

Where all beneficiaries consent and collectively hold the entire equitable interest, they may instruct the trustee to vary the trust, terminate it, or transfer the assets to themselves. The trustee cannot refuse to act on such instructions.

However, the rule in Saunders v Vautier is of limited utility where the class of beneficiaries includes minors, unborn or unascertained persons, or persons under a disability — all of whom cannot give legally effective consent. In such cases, court approval may be required.

Variation Under the Variation of Trusts Act (Applied in Hong Kong)

Hong Kong applies the Variation of Trusts Act 1958 of England and Wales by virtue of the Application of English Law Ordinance. This Act empowers the court to approve a variation of trust on behalf of those who cannot themselves consent, namely: minors, unborn beneficiaries, persons under a disability, and persons who have a future or discretionary interest that may be defeated by a protective trust.

Under the Act, the court will approve the arrangement if it is for the benefit of the persons on whose behalf approval is given. “Benefit” is construed broadly to include not only financial benefit but also social, moral, and educational benefit. Courts have approved variations that benefit the family as a whole even where individual beneficiaries see no direct financial gain, provided there is some benefit to each person on whose behalf the court acts.

Applications under the Act are made by originating summons in the High Court. The trustee and all beneficiaries who can consent must be joined as parties, and independent representation is typically arranged for minor and unborn beneficiaries through a guardian ad litem.

Variation Under the Trust Instrument Itself

Many modern trust deeds contain express variation or amendment clauses that allow the trustee, the protector, or specified persons to vary the terms of the trust without court involvement, within defined limits. Common provisions include the power to add or exclude beneficiaries, change the governing law, amend administrative provisions, and extend the trust period.

Variation clauses must be exercised strictly in accordance with their terms. A purported variation that exceeds the scope of the variation clause, or that is exercised by the wrong person, may be void.

Change of Governing Law

A trust established under Hong Kong law may, in certain circumstances, be “migrated” to another jurisdiction by changing the governing law of the trust. This may be desirable where the destination jurisdiction offers more favourable asset protection laws, more developed trust legislation, or tax advantages not available in Hong Kong. Migration typically requires express power in the trust deed and compliance with the trust laws of both the existing and destination jurisdictions.

Resettlement and Appointment

Rather than varying the existing trust, it may in some cases be preferable to exercise the trustee's power of appointment to create a new sub-trust or to resettle the trust assets onto a new trust with updated terms. Resettlement may be a more efficient route to achieving the desired outcome where the existing trust deed's variation clause is restricted, but it carries its own legal and tax implications that require careful analysis.

How Alan Wong LLP Can Help

Alan Wong LLP advises trustees, settlors, protectors, and beneficiaries on the variation of trusts in Hong Kong. We assess the most appropriate mechanism for achieving the desired changes, advise on the legal requirements and procedural steps, and prepare the necessary documentation including deeds of variation, court applications, and trustee resolutions. Contact us to discuss how your trust structure can be adapted to meet your current and future needs.