Trustees' powers and the beneficiary principle
Private trusts require accountable powers, ascertainable objects, and beneficiaries able to police administration.
Overview
This topic sits at the junction of two ideas which recur throughout the Equity paper. First, trustees do not merely hold title: they administer property through powers. Secondly, the private trust is not a free-floating scheme for the pursuit of abstract purposes. It is a juridical relation in which duties are owed to persons, or to a charitable purpose supervised by the Attorney General and the Charity Commission. The beneficiary principle is therefore not a technical curiosity. It explains why private trusts are enforceable, why certainty of objects matters, and why the court is willing to distinguish sharply between an imperative trust obligation and a discretionary power.
The traditional formulation is Morice v Bishop of Durham: there must be someone in whose favour the court can decree performance. In modern terms, the point is institutional and remedial. Equity is prepared to recognise a separation between legal and beneficial ownership because the conscience of the trustee is controlled by an identifiable claimant, or by a public enforcement mechanism in charity. A private non-charitable purpose trust ordinarily fails because no person has standing to compel proper administration. That proposition has already been encountered in Week 9; this week returns to it from the perspective of trustees' powers.
Trust instruments commonly confer powers to invest, sell, lease, insure, appoint income or capital, advance funds, apply maintenance, add or exclude beneficiaries, appoint new trustees, and delegate functions. Some powers are administrative; others are dispositive. Some are personal and non-fiduciary; many, especially where held by trustees as such, are fiduciary. The classification matters. A trustee may not be under a duty to exercise a mere power, but a fiduciary power carries duties to consider whether to exercise it, to consider the range of objects, to act for proper purposes, and not to act capriciously or fraudulently. A trust power, by contrast, is imperative: the trustees must distribute, though they may have discretion as to the manner of distribution.
For Tripos purposes, the central analytical move is to connect the law of powers with the beneficiary principle. Certainty of objects is not merely semantic. It determines whether the court can control the power if trustees fail, and whether persons can invoke the court's supervisory jurisdiction. McPhail v Doulton relaxed the test for discretionary trusts, but did not abolish the need for enforceability. Re Baden illustrates the difficulty of translating that test into practice. Re Hay and Re Manisty expose the distinct obligations attached to fiduciary powers. Re Denley and Re Astor mark the boundary between valid benefit-based arrangements and invalid purpose trusts.
A strong Cambridge answer should avoid treating this as a list of cases. The better structure asks: what is the function of the beneficiary principle; which powers are imperative and which are permissive; what degree of object certainty is required; what duties attach to fiduciary powers; and how far modern equity has accommodated settlor autonomy without sacrificing judicial control. The best answers also notice the policy tension. English law values private ordering, but it will not permit property to be locked into an unpoliceable programme.
Historical context
The beneficiary principle emerged from the historical office of the Court of Chancery. The use, and later the trust, allowed one person to hold legal title while another enjoyed the benefit. That separation was tolerable only because the Chancellor could compel the holder of legal title to act according to conscience. The early question was therefore not metaphysical ownership but enforcement: who could come to court and ask that the conscience-bound holder be made to perform?
This explains the enduring hostility to private non-charitable purpose trusts. A purpose is not a claimant. Unless the arrangement is charitable, or falls within one of the anomalous concessions such as graves, monuments or animals, a trust expressed simply for a purpose lacks the necessary enforcement structure. Morice v Bishop of Durham made that proposition canonical. The case concerned a gift on trust for such objects of benevolence and liberality as the Bishop should approve. Benevolence was not charity; the Bishop could not be given an uncontrolled mandate to distribute property without identifiable persons able to enforce it. The court's objection was not that the purpose was morally unattractive, but that it was legally ungovernable.
The law of powers developed alongside this insistence on enforceability. A power differs from a trust because it authorises, but does not necessarily oblige, its holder to act. At common law and in equity, powers of appointment allowed property owners to confer controlled dispositive authority on donees. The donee might be authorised to appoint property among children, relations, employees or other described objects. If the donee did not exercise the power, the property would pass under a default provision or result back according to the instrument. The power was thus a device of flexibility. It allowed the settlor to postpone final distribution until future circumstances became clear.
Equity's contribution was to insist that some powers, particularly when held by trustees, were not mere personal liberties. A trustee's power is usually fiduciary. The trustee must act in good faith, for proper purposes, and having considered whether the power ought to be used. This is why the old vocabulary of mere powers, trust powers and fiduciary powers remains useful. The classification mediates between settlor autonomy and equitable control. The settlor may confer discretion, but the trustee cannot treat that discretion as a private entitlement.
The twentieth century brought two major shifts. First, administrative powers were modernised by statute, especially in relation to investment and delegation. The Trustee Act 2000 replaced the narrow authorised-investment regime with a broad general power of investment, controlled by duties of care, advice and diversification. Secondly, the House of Lords in McPhail v Doulton assimilated the test for certainty of objects in discretionary trusts to the test for powers: it is enough that it can be said of any given person whether he is or is not within the class. This was a deliberate move away from the stricter complete list test applicable to fixed trusts.
Yet the modern law did not abandon the beneficiary principle. McPhail relaxed certainty because discretionary trusts resemble powers in practical operation, not because enforceability ceased to matter. Re Baden then showed the cost of relaxation: conceptual, evidential and linguistic uncertainty must be distinguished, and judges differed on the extent to which evidential difficulty is tolerable. The beneficiary principle now operates less as a crude insistence on a list of names and more as a requirement that the trust or power be judicially controllable. That development is crucial for Part II: the history is one of adaptation, not abolition.
Key principles
- The beneficiary principle is an enforcement principle. A private express trust normally requires ascertainable beneficiaries because beneficiaries are the persons entitled to hold trustees to account. The orthodox statement in Morice is often put in terms of benefit, but its deeper rationale is enforceability. If no beneficiary exists, there is ordinarily no one with standing to compel the trustee to apply the property according to the trust. Charitable trusts are different because public enforcement substitutes for private beneficiaries. Non-charitable purpose trusts survive only in narrow and anomalous categories, and even those are usually treated cautiously.
- Distinguish fixed trusts, discretionary trusts, trust powers and mere powers. In a fixed trust the beneficial shares are prescribed: trustees must distribute according to the stated formula. Certainty of objects requires the complete list test, because the court must know all beneficiaries and their shares. In a discretionary trust, trustees must distribute or apply property among a class, but have discretion as to who receives what. Since McPhail, certainty is satisfied if it can be said of any given person whether he is or is not within the class. In a mere power, the donee may appoint but need not do so. If the power is non-fiduciary, the donee may usually ignore it. If fiduciary, the donee must from time to time consider whether to exercise it.
- A trust power is imperative. The phrase is sometimes used for a discretionary trust: trustees are under a duty to distribute, although they have a power-like discretion as to selection. If they fail, the court can intervene. It may direct trustees to perform, replace them, or in extreme cases execute the trust itself. That imperative quality explains why object certainty must be sufficient for the court to supervise execution. A trust cannot be valid if its objects are so uncertain that performance cannot be judged.
- A fiduciary mere power is permissive but controlled. Re Hay's Settlement Trusts is the standard modern exposition. The trustee-donee of a fiduciary power need not exercise it, but must consider periodically whether to do so, must consider the range of objects, and must not act for an improper purpose. The trustee need not survey the class as fully as would be required for a discretionary trust. The obligation is one of responsible consideration, not exhaustive distribution planning. That difference is central in problem questions.
Statutory framework
The beneficiary principle is primarily judge-made. There is no general statutory provision stating that private trusts require beneficiaries. The relevant statutes instead confer and regulate trustees' powers. For this topic, the Trustee Act 2000 is the central modern instrument. It supplies default administrative powers and controls, especially in relation to investment.
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Landmark cases
Morice v Bishop of Durham remains the point of departure. Its importance lies less in the invalidity of the particular gift than in the proposition that private trusts require beneficiaries or charitable status. The case prevents a trustee from being given uncontrolled beneficial dominion under the language of obligation. It is the foundation for the modern beneficiary principle.
Re Astor's Settlement Trusts applies that proposition in a modern settlement context. The attempted trusts for the maintenance of good understanding between nations and for the preservation of independent newspapers were not charitable and lacked ascertainable beneficiaries. Roxburgh J was unwilling to validate a trust merely because its purposes were socially useful. The decision is a warning against confusing public value with charitable status and against treating settlor sincerity as a substitute for enforceability.
Re Denley's Trust Deed is the principal qualification. A trust of land to be used as a sports ground for employees was upheld because, although expressed in purpose form, it directly or indirectly benefited ascertainable individuals. Goff J's reasoning is often read as showing that a purpose trust may be valid where the purpose is a mode of benefiting persons. The case should not be overextended. It does not validate abstract private purposes; it recharacterises the arrangement as one for persons.
McPhail v Doulton is the decisive modern authority on discretionary trusts. The House of Lords rejected the complete list test for discretionary trusts and adopted the any given postulant test previously applicable to powers. The conceptual move is vital. A discretionary trust need not be administered by first compiling a complete list of all objects. It can be supervised if the trustees and the court can determine whether any claimant is within the class. That relaxation reflects the practical affinity between discretionary trusts and powers.
Re Baden's Deed Trusts (No 2) exposed the difficulty of applying McPhail. The class of relatives and dependants generated disagreement among the Court of Appeal judges. The case is best used for the distinction between conceptual and evidential uncertainty, and for the continuing debate about how much evidential difficulty equity can tolerate. It is not a licence to uphold any vague class.
Re Manisty's Settlement and Re Hay's Settlement Trusts are central to fiduciary powers. Re Manisty considered a wide power to add beneficiaries and recognised limits based on capriciousness and fiduciary purpose. Re Hay provides the clearest statement that fiduciary mere powers require consideration, not exercise. The trustee must address the existence and possible use of the power, but need not perform the exhaustive survey required of a discretionary trustee.
Pitt v Holt belongs at the modern end of the story. Although not a beneficiary-principle case, it clarifies the consequences of defective trustee decision-making. The Supreme Court rejected an over-expansive Hastings-Bass jurisdiction and insisted on breach of fiduciary duty before an exercise of power may be set aside on that basis. It is a useful corrective to loose statements that any inadequate deliberation invalidates a trustee decision. Equity supervises powers, but it does not provide general insurance against unfortunate outcomes.
Doctrinal development
The development of this area can be understood as a movement from formal enforceability towards controlled flexibility. The early law insisted that trusts be attached to persons. That insistence protected the distinction between trust and ownership. If a trustee could hold property on binding but unenforceable private purposes, the supposed obligation would become practically indistinguishable from beneficial entitlement. The beneficiary principle therefore preserved both accountability and the numerus of recognised equitable interests.
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Academic debates
Academic discussion is dominated by three questions: what justifies the beneficiary principle; how far object certainty should be relaxed; and whether the trust is best understood through rights, duties, powers or purposes.
Hayton has been associated with a more permissive attitude to non-charitable purpose trusts, particularly where an enforcer is appointed. On that view, the central problem in Morice is not metaphysical absence of a beneficiary but practical absence of enforcement. If a trust instrument appoints an enforcer with standing to sue, the accountability objection may be answered. This approach is attractive to those who value settlor autonomy and see little reason to invalidate harmless private purposes.
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Comparative perspective
Comparative material is useful if used sparingly. Several offshore jurisdictions have enacted non-charitable purpose trust regimes. They commonly require an enforcer and may impose limits on duration or purpose.
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Worked tutorial essay
Question: The beneficiary principle is no more than a rule about enforcement. Once a trust instrument appoints someone to enforce the trustee's obligations, English law should recognise private non-charitable purpose trusts and wide fiduciary powers without further anxiety. Discuss.
A strong answer should begin by accepting the insight in the proposition while resisting its overstatement. The beneficiary principle is undoubtedly concerned with enforcement. Morice v Bishop of Durham is usually cited for the formula that every non-charitable trust must have definite objects, but the point is not merely definitional. A court of equity recognises a trust because there is someone who can compel performance. However, English law has traditionally treated enforceability as connected with beneficial entitlement. A private trust is not simply a command to a trustee, supervised by any appointed watchdog. It is an obligation concerning property owed to beneficiaries, or, in the charitable case, to purposes which the law regards as public and supervises through special machinery.
The proposition is most persuasive as a criticism of crude formulations of the beneficiary principle. If the only problem with private purpose trusts is that no one can sue, then an enforcer appears to solve the problem. This has led some commentators, notably Hayton, to support recognition of non-charitable purpose trusts where an enforcer is provided. Offshore legislation has adopted variants of this solution. The argument has practical force. A settlor may wish to maintain a family archive, hold shares in a private company, fund a memorial activity, or preserve land for a defined non-charitable purpose. If trustees owe duties, and an enforcer can sue them, why should English law insist on a beneficiary who may have no real economic interest in the purpose?
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Common exam traps
- Treating every power as a duty. A power authorises action; a trust obligation requires it. A fiduciary mere power imposes duties of consideration and proper purpose, but not a duty to distribute. Misclassifying the clause usually ruins the answer.
Pro unlocks every section in full — doctrinal analysis, academic-debate, worked-essay walkthroughs, and exam traps — plus all practice questions and PDF export for revision.
Not ready for Pro? A free account lets you return here and bookmark the note.
Practice questions
See practice questions section below.
Further reading
See further reading section below.
Diagrams
Use this sequence in problem questions: classification determines certainty, enforcement and remedies.
Practice questions
Explain the difference between a fixed trust, a discretionary trust and a fiduciary mere power.
What is the beneficiary principle, and why did the trusts fail in Re Astor's Settlement Trusts?
Further reading
- James Penner, The Law of Trusts 12th edn, OUP, 2022, chapters on trusts, powers and purpose trusts
- Graham Virgo, The Principles of Equity and Trusts 5th edn, OUP, 2023, chapters on certainty, purpose trusts and trustees' powers
- Lynton Tucker, Nicholas Le Poidevin and James Brightwell, Lewin on Trusts 20th edn, Sweet & Maxwell, 2020
- David Hayton, Paul Matthews and Charles Mitchell, Underhill and Hayton: Law of Trusts and Trustees 20th edn, LexisNexis, 2022
- Jonathan Garton, The Beneficiary Principle (2006) 22 Trust Law International 3
- David Hayton, The Irreducible Core Content of Trusteeship (1994) 110 LQR 68
- John H Langbein, A Problem in the Law of Trusts (1964) 80 LQR 542
- McPhail v Doulton [1971] AC 424
- Re Hay's Settlement Trusts [1982] 1 WLR 202
Want the rest of the canon?
Get the free “50 Must-Know Cases for UK Law Exams” guide plus weekly study tips, sent to your inbox.