Definition
Failure of trust refers to the collapse or non-execution of a trust, such that the trust cannot take effect as intended or cannot continue to operate. A trust fails when the essential legal machinery required to establish or sustain it is missing or defective. This may occur at the outset — when the instrument creating the trust is legally insufficient — or it may occur after formation, when some supervening condition renders the trust incapable of execution.
The consequences of failure are significant: when an express trust fails, the property subject to that trust does not simply disappear into a void. Equity typically responds by imposing a resulting trust in favor of the settlor or the settlor's estate, returning the beneficial interest to its source.
Common Confusion
Failure of trust is sometimes conflated with breach of trust, but the two are distinct. Breach of trust arises when a trust exists and a trustee violates a duty owed under it. Failure of trust arises when the trust itself cannot come into being or cannot be carried out — there is no functioning trust to breach. The former is a wrong committed within a trust relationship; the latter is the absence of a valid trust relationship.
Failure of trust is also occasionally confused with termination of trust, which describes the proper conclusion of a trust that has fully operated according to its terms. Termination is successful completion; failure is the inability to complete.
Core Elements
Failure of trust may arise from any one or more of the following grounds:
Defective instrument. The deed, will, or other creating instrument is legally insufficient — for example, it fails to satisfy applicable formalities, lacks words adequate to create a trust obligation, or is void for some independent reason such as fraud or incapacity.
Illegality. The purpose or object of the trust is unlawful, contrary to public policy, or otherwise prohibited by law, rendering the trust void ab initio.
Uncertainty. The trust fails if the object, subject matter, or beneficial interest is so indefinitely stated that a court of equity cannot give the trust effect. Certainty of object — knowing who the beneficiaries are — is essential.
Want of a beneficiary. If there is no ascertainable person or class capable of taking as cestui que trust, the trust cannot operate. No one exists to enforce the equitable obligation or to receive the beneficial interest.
Want of a trustee. Notably, this ground alone does not automatically defeat the trust. Equity applies the principle that a trust shall not fail for want of a trustee — a court will supply or appoint a trustee rather than allow the trust to collapse on this ground alone.
Subsequent impossibility. A trust that was valid at creation may fail if performance later becomes impossible — for example, the trust property is destroyed, the charitable purpose becomes impracticable, or a necessary condition cannot be fulfilled.
Why It Matters in Research
Failure of trust is a gateway concept in trust law research because the doctrine does not end the analysis — it begins a second inquiry into what happens to the property. In most cases, a resulting trust arises, and researchers tracing beneficial ownership in failed express trust scenarios must follow that resulting trust doctrine carefully. The Law Mind encyclopedia entry on resulting trusts covers this succession directly.
Researchers working in historical sources should be aware that older authorities often describe failure of trust in terms of the trust "lapsing," which can be confused with the lapse doctrine in inheritance law. The concepts are unrelated — lapse in trusts and wills concerns the death of a beneficiary before the gift vests, not the structural failure of the trust mechanism itself.
The distinction between initial failure (void from the start) and subsequent failure (valid trust that later becomes unworkable) matters for tax and accounting purposes, and may affect when a resulting trust is deemed to arise. This distinction appears inconsistently in older sources, which tend to treat all failure scenarios as equivalent.
Jurisdictional variation in the treatment of charitable trust failure is significant. The cy-pres doctrine, which permits courts to redirect a failed charitable trust to a similar purpose rather than imposing a resulting trust, applies to charitable trusts but not to private trusts. Researchers must confirm whether the trust under study is private or charitable before applying failure-of-trust consequences.
Historical Dictionary Support
Black's and Bouvier's are largely consistent in their treatment of failure of trust, and both definitions remain serviceable as starting points. Black's emphasizes the instrument side — defect or insufficiency of the creating deed — while Bouvier's provides the more complete doctrinal picture, explicitly enumerating uncertainty of object and want of a cestui que trust as independent grounds. Bouvier's is also more precise in its statement of the equity maxim that a trust shall not fail for want of a trustee, which Black's omits.
Neither source gives meaningful attention to subsequent or supervening failure, focusing almost entirely on initial defects at the moment of creation. Researchers dealing with trusts that were validly constituted but later become impossible or impracticable should not rely on these historical entries for that analysis.
Both entries predate the Uniform Trust Code and its statutory treatment of trust modification and termination, which in modern practice provides mechanisms that may prevent or cure conditions that would historically have resulted in outright failure.
Jurisdictional Note
The equity maxim that a trust shall not fail for want of a trustee is broadly accepted across common law jurisdictions, but the procedural path to appointing a replacement trustee varies. In charitable trust contexts, the cy-pres doctrine governs failure in most U.S. states and in England and Wales, but the threshold showing of "impossibility or impracticability" differs by jurisdiction and has been relaxed in some modern statutes.
Encyclopedia Cross-Reference
Resulting Trusts — Purchase-Money and Failure-of-Express-Trust Resulting Trusts (The Law Mind Trusts, Estates & Probate Encyclopedia)