A secret trust is an arrangement where a will leaves a gift to one person who has privately agreed to hold it for someone else, whose name never appears in the will. It lets a testator provide for a person, perhaps a partner, a child from an earlier relationship, or a charity, without that person being named in the public record after death.
Secret trusts are legal in England and Wales, and the courts have enforced them for over a century. They are also one of the riskier ways to keep a beneficiary private, because so much rests on one person's honesty, and a properly drafted trust will often do the job more reliably. Figures are current as at August 2026 and subject to change.
Fully secret and half secret trusts: what is the difference?
There are two forms. In a fully secret trust, the will shows an outright gift and says nothing about a trust. In a half secret trust, the will shows the person takes the gift as a trustee, but keeps the beneficiary and terms private. The distinction matters most for when the arrangement must be communicated and what happens if it fails.
| Feature | Fully secret trust | Half secret trust |
|---|---|---|
| How the will reads | Looks like an outright gift ("I leave £50,000 to Y") | Shows a trust exists ("to Y, to hold on trusts I have told them of") |
| When it must be communicated to the trustee | Any time before the testator dies | Before or at the time the will is signed |
| Can the trustee keep the gift if it fails? | Potentially yes, as it looks like their gift | No, they clearly hold it as trustee |
| If the trust fails, who receives the gift | The named trustee, as an apparent gift | The residuary beneficiaries of the estate |
General position under the law of England and Wales, as at August 2026. Outcomes turn on the facts and the wording used.
What makes a secret trust valid?
For a secret trust to bind the person receiving the gift, three things must be shown. The courts developed these tests in cases such as McCormick v Grogan (1869) and Blackwell v Blackwell (1929), and they remain the working requirements today.
- Intention. The testator must have intended to create a genuine trust obligation, not merely express a hope or a wish that the recipient might choose to honour.
- Communication. The testator must tell the trustee about the trust and its terms. For a half secret trust this must happen before or when the will is signed; for a fully secret trust it can happen at any point before death.
- Acceptance. The trustee must accept the role, either expressly or by silence, so that it would be a fraud to keep the gift for themselves. Acceptance can be inferred from not objecting.
Because there is usually no written record, proving all three later can be difficult, and the burden falls on whoever tries to enforce the trust.
What happens if a secret trust fails?
A secret trust can fail if intention, communication or acceptance cannot be proved, or if the trustee dies before the testator. What happens next depends entirely on which type it was, and the two outcomes can be very different. In one, the gift may stay with the trustee and the intended beneficiary receives nothing; in the other, it falls back into the estate.
If a fully secret trust fails, the gift stays with the named person, because on the face of the will it was theirs, and the intended beneficiary may get nothing. If a half secret trust fails, the trustee cannot keep it, so the gift falls back into the estate and passes to the residuary beneficiaries. If a fully secret trustee dies before the testator, the trust generally lapses; with a half secret trust, the personal representatives can step in and it can survive.
Why do people use secret trusts, and what are the drawbacks?
The single real advantage is privacy. Since a will becomes public once probate is granted, a secret trust can keep a sensitive beneficiary out of that record. The drawbacks are why many will writers and solicitors rarely recommend them: everything rests on one person staying honest, outliving you, and remembering terms that are almost never written down.
| Possible upside | Common drawback |
|---|---|
| Keeps a beneficiary's name out of the public will | Relies entirely on one person being honest and outliving you |
| Can adapt to a change of mind without redrafting the will | Usually no written proof, so disputes are hard to win |
| Avoids naming a partner or charity openly | The trustee could keep a fully secret gift for themselves |
A safer way to keep a beneficiary private
In practice, most people who want privacy do not need a secret trust, and it often creates more risk than it removes. The usual goal is to provide for someone quietly and reliably, and there are more dependable routes in England and Wales. Two mistakes come up again and again.
The first is assuming a secret trust hides money from tax. It does not. The gift passes under your will and forms part of your estate, so it counts towards inheritance tax in the normal way, charged at 40% above your available thresholds (the nil-rate band of £325,000 and, where a home passes to descendants, a residence nil-rate band of up to £175,000, both frozen until 5 April 2031, gov.uk, as at August 2026, subject to change).
The second is trusting one person to carry out your wishes with no paper trail. A properly drafted discretionary trust in your will can name a class of beneficiaries and be guided by a private letter of wishes that never enters the public record, giving privacy with a real, enforceable structure behind it. For most families, that, set alongside a clear will, achieves the discretion of a secret trust without depending on a single person's memory and goodwill.
Frequently asked questions
Common questions about secret trusts, the two types, and whether they can save inheritance tax. In short, they are legal in England and Wales but can be hard to enforce, and they offer privacy rather than any tax advantage. Where privacy is the real goal, a discretionary trust guided by a private letter of wishes is usually the safer, more reliable choice.
Are secret trusts legal in the UK?
Yes. Secret trusts are recognised and enforceable under the law of England and Wales, and the courts have upheld them since the 19th century. Their validity depends on proving intention, communication and acceptance. They are legal, but their enforceability in a dispute is often uncertain because there is usually no written record.
What is the difference between a secret trust and a half secret trust?
A fully secret trust looks like an outright gift in the will, with no sign a trust exists. A half secret trust shows on the face of the will that the person takes the gift as a trustee, but keeps the beneficiary and terms private. The timing rules and the outcome if the trust fails differ between the two.
Do secret trusts avoid inheritance tax?
No. A secret trust does not remove assets from your estate for inheritance tax. The gift passes under your will and is part of your death estate, so it is assessed in the normal way, with tax charged at 40% on the value above your available allowances (gov.uk, as at August 2026, subject to change). Privacy is the aim, not tax saving.
Are secret trusts still used today?
Rarely, and with caution. They still arise, and modern cases such as Rawstron v Freud (2014), concerning the will of painter Lucian Freud, show they reach the courts. Most estate planners now favour a discretionary trust and a private letter of wishes, which offer similar privacy with far stronger protection.
If privacy is your reason for considering a secret trust, look at the alternatives first. See how trusts fit a wider plan in our guides to estate planning and how to write a will, what becomes public in our guide to probate, or book a consultation to talk through your own situation.