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What Is a Trustee? Roles and Duties Explained

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Last Updated: September 26, 2026

What Is a Trustee? The Role Explained in Plain English

A trustee is the person or people legally responsible for holding and managing assets placed inside a trust, and for distributing them according to the trust's terms. In simple terms, they are the legal owner of the assets on paper, but they manage them for someone else's benefit, not their own.

This guide sets out what that job actually involves, where trustees commonly go wrong, and how to decide who should take it on.

A close-up of a person's hands reviewing a legal document at a wooden desk, with a pen and a cup of tea nearby, conveying a calm and considered atmosphere
A close-up of a person's hands reviewing a legal document at a wooden desk, with a pen and a cup of tea nearby, conveying a calm and considered atmosphere

How a Trust Works

A trust is a legal arrangement where one party holds assets for the benefit of another. Three roles sit at its centre: the settlor, who creates the trust and puts assets into it; the trustee, who manages those assets; and the beneficiary, who receives the benefit from them.

The trustee's authority comes from the trust deed, a document that sets out what they can and cannot do. Most people picture a trust as a tool for the very wealthy. That is a mistake. Trusts are commonly used to hold property for children until they reach a set age, to manage money for someone who cannot manage it themselves, and to keep assets outside a person's estate after death.

The same person can occupy more than one role. A settlor can also be a trustee, and a trustee can also be a beneficiary, though that combination brings its own complications. We cover those later.

Trustee Duties and Responsibilities You Must Understand

Trustee duties and responsibilities fall into two groups: the legal obligations imposed by law, and the practical tasks the trust deed requires. The legal duties apply regardless of what the deed says.

A trustee must act in the best interests of the beneficiaries, and only in their interests. That duty sits above everything else.

Beyond it, trustees are expected to act unanimously where there is more than one, keep trust assets separate from their own money, keep clear records and accounts, invest prudently, and avoid putting themselves in a position where their personal interests conflict with the trust's.

The practical work is less glamorous than it sounds. Trustees typically handle:

  • Registering the trust with HMRC where required and filing any tax returns due
  • Keeping records of income, capital gains and distributions
  • Paying tax the trust owes, including on rental income or investment growth
  • Making distributions to beneficiaries in line with the deed
  • Preparing annual accounts, even where no tax is payable
Pro Tip A common mistake is treating the trust's money as an extension of personal finances. Paying a trust expense from a personal account, even with the intention of repaying it, muddies the records and makes the annual accounts far harder to prepare. Keep a separate account from day one.

The Difference Between a Trustee and an Executor

The difference between a trustee and an executor comes down to timing and to what each one is handling. An executor deals with a person's estate immediately after death, gathering in the assets, paying debts and taxes, and distributing what remains under the will (Dealing with the estate of someone who's died: Overview). Their role ends once the estate is wound up.

A trustee's role starts where the executor's often finishes. If a will creates a trust, the executor hands the assets over to the trustee, who then manages them over the long term. Executors work to a will and to probate rules. Trustees work to a trust deed, sometimes for decades.

One person can hold both roles. It is common for the same individual to be named as executor in a will and as trustee of a trust created by that will. The duties are different, but the standard expected is similar: act honestly, act in the beneficiaries' interests, and keep proper records.

Role Applies To Typical Duration Governed By
Executor The estate after death Months, until the estate is wound up The will and probate rules
Trustee Assets held in trust Years, sometimes decades The trust deed and trust law

Trustee Liability for Breach of Trust

Trustee liability for breach of trust is real, and it is personal. A trustee who fails in their duties can be ordered to make good the loss from their own pocket.

A breach can be deliberate, such as taking money from the trust, or it can be careless, such as failing to invest sensibly or distributing to the wrong person. The trustee's own honesty does not always provide a defence. Acting in good faith but outside the powers in the deed is still a breach.

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Watch Out The most expensive mistake trustees make is failing to keep records. Without a clear paper trail of decisions and distributions, a trustee cannot show that they acted properly, and the burden of proof sits with them, not the beneficiary.

There are protections. A trustee who acted honestly and reasonably may ask the court for relief, and the trust deed can include an exoneration clause. Neither is a substitute for doing the job properly.

Can a Trustee Also Be a Beneficiary?

A trustee can also be a beneficiary, and it is common in family trusts. The arrangement is legal, but it creates a conflict of interest that has to be managed carefully.

The rule is straightforward: a trustee who is also a beneficiary must not use their position to benefit themselves at the expense of other beneficiaries. Where a decision affects their own share, they should step back and let an independent trustee decide. If every trustee is also a beneficiary, the trust deed should set out how those decisions are handled.

For many families, the cleaner approach is to appoint at least one trustee who is not a beneficiary. That independent voice keeps decisions defensible and avoids disputes later.

How to Choose the Right Trustee for Your Estate Plan

Choosing a trustee is a decision about character, competence and longevity, not sentiment. The person you name will be handling money that matters to people you care about, potentially for many years.

Work through these questions before you decide:

  • Will this person still be capable and willing in ten or twenty years?
  • Do they have the temperament to handle paperwork and deadlines, or will it slip?
  • Can they stay neutral if beneficiaries disagree?
  • Do they understand, or are they willing to learn, the tax and reporting duties?
  • Have they agreed to the role, in writing?
  • Is there a professional or independent trustee who could sit alongside them?

Naming a professional trustee costs more but removes the risk of a friend or relative becoming overwhelmed. Naming a family member keeps costs down but puts a real burden on them.

Key Takeaway The best trustee is rarely the person you like most. It is the person most likely to still be doing the job properly in twenty years, and who will say no to a beneficiary when the deed requires it.

This is where a tailored review helps. At Staniland Estate Protection, we work through your circumstances and the people involved, then set out the trade-offs in plain English so you can make an informed decision.


Deciding who should manage your assets after you are gone is one of the most consequential choices in any estate plan. Staniland Estate Protection offers jargon-free guidance from Daniel Staniland LLB, tailored planning built around your individual circumstances, and comprehensive estate reviews to keep existing arrangements effective as your life changes. Book a free consultation with Staniland Estate Protection and put a properly structured plan in place.

Frequently Asked Questions

What are the primary legal duties of a trustee?

A trustee's core duties include acting in the best interests of the beneficiaries, investing trust assets prudently, keeping accurate accounts, and distributing funds according to the trust deed. They must avoid conflicts of interest and act impartially between beneficiaries. These duties are enforced by law, and failing to meet them can lead to personal liability. It is important to understand these responsibilities before accepting the role.

What is the difference between a trustee and an executor?

An executor manages a person's estate after they die, handling probate and distributing assets according to the will. A trustee manages assets held in a trust, which can exist during a person's lifetime or after death. The key difference is timing and purpose: executors deal with a one-off estate administration, while trustees have an ongoing role managing trust assets for beneficiaries over time.

Can a trustee also be a beneficiary of a trust?

Yes, it is legally possible for a trustee to also be a beneficiary. However, this creates a potential conflict of interest. The trustee must act impartially and cannot use their position to benefit themselves unfairly. In practice, having an independent co-trustee can help manage this risk. If you are considering this arrangement, seek legal advice to ensure it is structured correctly.

Are trustees personally liable for trust losses?

Trustees can be held personally liable if they breach their duties and cause a loss to the trust. This includes failing to invest prudently, acting in bad faith, or distributing assets incorrectly. However, if they act honestly and reasonably, they may be protected by the trust deed or by seeking court directions. Professional advice can help you understand your exposure before accepting a trusteeship.