Fiduciary relationships outside trust
Fiduciary law polices disloyal advantage where trust concepts travel beyond trusteeship.
Overview
This week concerns the fiduciary idea outside the express trust. The topic is not an appendix to trustees’ duties. It is the point at which the equitable method reveals its general significance in private law: a body of doctrine developed in relation to trustees is applied, with adaptation, to company directors, agents, solicitors, partners, promoters, financial advisers, employees, public officers, joint venturers and others who undertake to act for another in circumstances calling for loyalty.
The central question is not whether a person is morally trustworthy, nor whether one party has reposed confidence in another in a loose social sense. The modern starting point is Bristol and West Building Society v Mothew: a fiduciary is someone who has undertaken to act for or on behalf of another in a particular matter in circumstances giving rise to a relationship of trust and confidence. The core obligation is loyalty. From that core are derived the familiar prophylactic rules: no unauthorised conflict of interest and duty; no unauthorised conflict between duties owed to different principals; no unauthorised profit from the fiduciary position; no secret commission or bribe; and a duty to disclose material interests where informed consent is to be obtained.
The phrase ‘outside trust’ matters. A trustee holds title for beneficiaries and is subject to the full office of trusteeship: custodial duties, investment duties, dispositive powers, duties of care, powers of maintenance and advancement, and so forth. A fiduciary who is not a trustee may owe only a narrower set of duties, tailored to the scope of the undertaking. A solicitor instructed on a conveyance, an agent negotiating a contract, or a director exploiting corporate information is not thereby a trustee of all the principal’s assets. The first analytical task is therefore one of characterisation: what is the fiduciary undertaking, and to what matter does it extend?
The second task is remedial. Fiduciary breach may produce personal remedies, rescission, account of profits, equitable compensation, or proprietary relief. After FHR European Ventures LLP v Cedar Capital Partners LLC, an agent who receives a bribe or secret commission holds it on constructive trust for the principal. That conclusion has substantial insolvency consequences and should be handled carefully in problem answers.
For Cambridge purposes, this topic links several earlier weeks. From Week 10 it borrows the duty of loyalty. From Weeks 13 to 15 it borrows the remedial architecture of equitable compensation, tracing, knowing receipt and dishonest assistance. But its distinctive difficulty lies in avoiding over-extension. Equity does not impose fiduciary duties merely because one party is vulnerable, dependent, weaker, or has been wronged. Fiduciary law is not a general doctrine of good faith. It is a targeted response to the misuse of an undertaking to act for another.
Historical context
The fiduciary idea grew from several equitable sources rather than from a single general theory. The express trust supplied the paradigm: the trustee was required to administer property for another and was disabled from deriving unauthorised personal advantage. The strict rules in Keech v Sandford and later in Ex parte James and Ex parte Lacey reflected an institutional anxiety: if fiduciaries could place themselves in temptation and then invite the court to inspect their honesty, the protective structure of equity would be weakened. The rule was deliberately severe because it was preventive.
Agency supplied the second source. Commercial life required persons to bargain, receive money, acquire information and exercise discretion on behalf of others. The law could not confine loyalty to trustees. An agent negotiating a sale, a broker obtaining a commission, or a factor handling goods could exploit informational and practical advantages at the principal’s expense. Equity responded by requiring disclosure and by stripping unauthorised profits. This explains why many leading fiduciary cases concern agents rather than trustees: the law of agency became the principal means by which equitable loyalty entered ordinary commerce.
Company law supplied the third and most prominent modern field. Directors are not trustees of company property in the full sense, but they exercise powers and obtain information for the company. The early cases described directors as trustees, but that language is now treated as metaphorical unless connected to particular property or powers. The mature position is that directors are fiduciaries: they must act within powers, promote the company’s success, avoid conflicts, and not accept third-party benefits. Regal (Hastings) Ltd v Gulliver and Boardman v Phipps illustrate the severity of the no-profit rule, while the Companies Act 2006 now codifies important aspects of directors’ general duties without abolishing their equitable foundations.
The twentieth century also witnessed expansion into professional and advisory relationships. Solicitors, financial advisers, pension advisers, managing agents and underwriting agents may become fiduciaries where their role includes acting for another in a matter involving discretion, power or influence. But English law has resisted the broad North American language of fiduciary vulnerability as the decisive test. Vulnerability may explain why fiduciary duties are needed, but it does not by itself create them. The law asks whether there has been an undertaking, express or implied, to act for or on behalf of another.
The leading modern restatement is Millett LJ’s judgment in Mothew. Its importance lies in separating fiduciary duties from other equitable or common law duties. Negligence, incompetence and failure to exercise reasonable care are not fiduciary breaches merely because committed by a fiduciary. A solicitor may be negligent without being disloyal. A director may misjudge a commercial risk without making an unauthorised profit. This distinction is essential. It prevents fiduciary language from swallowing contract, tort and unjust enrichment; it also preserves the exceptional remedial consequences of fiduciary breach.
Historically, therefore, fiduciary law is neither an archaic morality nor a general fairness jurisdiction. It is an equitable technique for controlling entrusted power. Its severity is justified where the defendant has undertaken to pursue another’s interests in a defined respect, because the principal cannot fully supervise the fiduciary’s use of information, discretion or opportunity. Its limits are justified by the same reason: outside the undertaking, the defendant is not required to subordinate self-interest.
Key principles
- The core is loyalty, not care. Fiduciary law is often confused with the law of negligence because many fiduciaries are also professional service providers. Mothew rejects that confusion. A fiduciary may owe duties of care in contract, tort or equity; those duties are not fiduciary merely because the actor is a fiduciary. The fiduciary obligation is the obligation of single-minded loyalty within the scope of the relationship. Thus, a solicitor who misses a limitation date is negligent; a solicitor who acts for both sides without informed consent may be disloyal. A director who makes a bad business decision may breach a duty of care; a director who diverts a corporate opportunity may breach fiduciary loyalty.
- Status matters, but is not exhaustive. Some relationships are conventionally fiduciary: trustee-beneficiary, solicitor-client, agent-principal, director-company, partner-partner, and perhaps guardian-ward. In these relationships the court usually begins from the status and then asks what duties arise in the circumstances. Other relationships are ad hoc fiduciary relationships, requiring analysis of undertaking, reliance, discretion and the expectation that one party will act for another. The categories are not closed, but neither are they infinitely expandable.
- The fiduciary undertaking is scoped. English law is increasingly attentive to the scope of the fiduciary obligation. A person may be a fiduciary for one purpose but not another. A bank lending money to a customer is normally pursuing its own interest; it is not a fiduciary merely because the borrower trusts it. A financial adviser recommending investments may be fiduciary in respect of advice. An estate agent may owe loyalty in marketing property, but commercial custom may permit acting for multiple principals where that is understood and authorised. Always ask: in relation to what matter did D undertake to act for C?
Statutory framework
There is no general English Fiduciaries Act. Fiduciary obligations outside trust remain primarily judge-made. The most important statutory intervention is in company law, where the Companies Act 2006 restates directors’ general duties. Those provisions matter because directors are the most commonly examined fiduciaries outside trust and because the Act illustrates the modern relationship between statute and equity.
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Landmark cases
The doctrinal spine begins with Keech v Sandford. The trustee of a lease for an infant beneficiary sought renewal from the landlord; the landlord refused to renew for the infant but granted the lease to the trustee personally. The trustee was required to hold the renewed lease for the beneficiary. The importance of the case lies less in its trust facts than in its prophylactic style. Equity preferred a strict rule preventing temptation to a factual inquiry into honesty or fairness. That style later informed fiduciary law more generally.
Regal (Hastings) Ltd v Gulliver translated the principle into company law. Directors acquired shares in a subsidiary formed for the company’s cinema venture and sold them at a profit when the whole enterprise was sold. They acted honestly and the company could not itself subscribe for all the shares. Nevertheless, the directors were liable to account. The case is indispensable because it shows that fiduciary liability is not confined to fraud, bad faith, or loss to the principal. It is triggered by unauthorised profit obtained by reason of the fiduciary position.
Boardman v Phipps remains the most difficult and revealing case. A solicitor to a trust and a beneficiary acquired information while acting in relation to trust affairs and then purchased shares in a company in which the trust already had a holding. They improved the company and made a large profit. A majority of the House of Lords held them accountable, though an allowance was granted for their skill and effort. The case illustrates both the strictness and the unease of the no-profit rule. It also shows the importance of informed consent: the defendants had not obtained consent from all beneficiaries.
Bristol and West Building Society v Mothew is the modern conceptual foundation. Millett LJ distinguished fiduciary duties from duties of skill and care, insisting that not every breach by a fiduciary is a fiduciary breach. This case should be cited early in any essay. Its function is disciplinary: it prevents overuse of fiduciary language and clarifies why the remedies for disloyalty may be exceptional.
Hilton v Barker Booth & Eastwood concerns solicitors acting despite conflicts created by duties to different clients. The House of Lords held the firm liable where it failed to disclose material information because of confidentiality owed to another client. The case is a strong authority for the proposition that fiduciaries must not put themselves in positions where they cannot discharge duties of loyalty and disclosure.
Murad v Al-Saraj demonstrates the strictness of account and the limited relevance of causation in gain-based relief. The fiduciary misrepresented his contribution to a joint venture and obtained a profit. The Court of Appeal required disgorgement; it was no answer that the claimants might still have proceeded. Where the claim is for account of unauthorised profit, the focus is on the fiduciary’s gain rather than the claimant’s loss.
Imageview Management Ltd v Jack applies the principles in a modern agency setting. A football agent owed fiduciary duties to the player and received an undisclosed payment from the purchasing club. The Court of Appeal required repayment. The case is useful because it shows that secret commissions are not an antiquarian doctrine: they remain central wherever agents bargain for principals.
FHR European Ventures LLP v Cedar Capital Partners LLC is the leading proprietary case. The Supreme Court held that a bribe or secret commission received by an agent is held on constructive trust for the principal. It resolved earlier uncertainty and preferred clarity, deterrence and consistency. It is essential for problem questions involving insolvency, tracing, or priority against the fiduciary’s creditors.
Doctrinal development
The development of fiduciary doctrine is best understood as a movement from status to undertaking, and from moralised language to functional analysis. Early cases often called fiduciaries ‘trustees’ because trusteeship supplied the available vocabulary. Directors, agents and solicitors were sometimes said to be trustees of powers, opportunities or profits. Modern law is more precise. A fiduciary outside trust is not necessarily a trustee of property; he is subject to obligations of loyalty in respect of the matter undertaken.
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Academic debates
The leading academic debate concerns the nature of the fiduciary obligation. Paul Finn’s influential work presents fiduciary law as a jurisdiction concerned with loyalty in relationships of trust, confidence and dependence. Finn’s account is broad and historically sensitive, and has been especially influential in Australia. Its strength is that it explains why fiduciary law is concerned with power and vulnerability. Its weakness, for English law, is that vulnerability cannot be the decisive juridical criterion.
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Comparative perspective
Comparative material is useful if used sparingly. Australian law has developed a sophisticated fiduciary jurisprudence, influenced by Finn and reflected in cases such as Hospital Products Ltd v United States Surgical Corporation.
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Worked tutorial essay
Question: ‘Fiduciary law outside the trust is best understood not as a response to vulnerability, but as a strict prophylactic jurisdiction controlling entrusted power.’ Discuss.
A strong answer should begin by resisting two simplifications. Fiduciary law is not confined to trustees, but nor is it a general jurisdiction to relieve weaker parties from opportunism. Its organising idea is loyalty within a defined undertaking. The question’s reference to ‘entrusted power’ is therefore largely correct, provided that ‘power’ is not understood too broadly. It must be power or discretion undertaken for or on behalf of another in a particular matter.
The modern starting point is Bristol and West Building Society v Mothew. Millett LJ’s formulation identifies a fiduciary as a person who has undertaken to act for or on behalf of another in circumstances giving rise to trust and confidence. More importantly, the judgment distinguishes fiduciary loyalty from duties of care. A fiduciary may be careless without being disloyal; a professional may owe careful performance without being subject to fiduciary constraints in every aspect of the relationship. This distinction is essential to the proposition in the question. If vulnerability were enough, fiduciary law would be liable to absorb negligence, misrepresentation, undue influence and statutory consumer protection. Mothew prevents that expansion.
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Common exam traps
- Treating every duty owed by a fiduciary as fiduciary. This is the Mothew trap. A solicitor, director or agent may owe contractual, tortious, statutory and equitable duties. Only duties of loyalty are fiduciary in the strict sense. If the facts concern incompetence, delay, bad advice or careless performance, ask whether there is disloyalty before invoking fiduciary remedies.
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Practice questions
See practice questions section below.
Further reading
See further reading section below.
Diagrams
Use this sequence in Tripos problem answers to avoid collapsing status, breach and remedy.
Practice questions
What is the difference between a fiduciary duty and a duty of care?
Why is Keech v Sandford still important outside express trusts?
Further reading
- David Hayton, Paul Matthews and Charles Mitchell, Underhill and Hayton Law of Trusts and Trustees 20th edn, LexisNexis, 2022, chapters on fiduciary duties and breach
- Lynton Tucker, Nicholas Le Poidevin and James Brightwell, Lewin on Trusts 20th edn, Sweet & Maxwell, 2020, chapters on trustees’ fiduciary duties and constructive trusteeship
- Alastair Hudson, Equity and Trusts 10th edn, Routledge, 2022, chapters on fiduciary obligations
- Matthew Conaglen, The Nature and Function of Fiduciary Loyalty (2005) 121 LQR 452
- Paul D Finn, Fiduciary Relationships in TG Youdan (ed), Equity, Fiduciaries and Trusts (Carswell 1989)
- Lionel Smith, Fiduciary Relationships: Ensuring the Loyal Exercise of Judgement on Behalf of Another (2014) 130 LQR 608
- Sarah Worthington, Fiduciary Duties and Fiduciary Relationships (2013) 72 CLJ 534
- Bristol and West Building Society v Mothew [1998] Ch 1
- FHR European Ventures LLP v Cedar Capital Partners LLC [2014] UKSC 45, [2015] AC 250link
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