GUIDES
A trustee capacity report must address the actual trust and the functions in question, such as a particular transaction, continuing in office or retirement. Trust documents, working records and the trustee’s own supported explanations are central evidence.
Author: Nellie Supports Ltd
Publication Date: 15/05/2026
Mental Capacity Act 2005, c. 9. Available at: https://www.legislation.gov.uk/ukpga/2005/9/contents
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A trustee capacity report must address the actual trust and the functions in question, such as a particular transaction, continuing in office or retirement. Trust documents, working records and the trustee’s own supported explanations are central evidence. This guide covers the relevant evidence, support, process and limits in England and Wales.
A trustee capacity report needs evidence of the office and evidence of the person. The office side: the trust deed, the nature and value of the trust property, the beneficiaries, and the decisions the trusteeship currently and foreseeably requires. The person side: their presentation in a structured assessment addressed to those functions, medical records explaining any impairment, and accounts of how they have handled trust business recently. The report joins the two: what this trusteeship demands, what the person can do, and why any gap is caused by the impairment. This guide lists the evidence and its use.
A trustee capacity report is anchored to a specific office, so the evidence begins with the trust itself: the declaration of trust, will or settlement creating it, any deeds of appointment or retirement since, and the title documents where land is involved. Without these the assessor cannot know what the office actually demands of this trustee, and the relevant information, which scales with the trust's complexity, cannot be identified accurately. Assessing a trustee without the trust is assessing against a guess.
The instruction should establish whether the question is the trustee's continuing capacity to conduct the office, their capacity to join in a specific transaction such as a sale, or their capacity to retire, because these are different decisions engaging different information. A report that answers the wrong one, or answers all three vaguely, helps nobody. The pending matter, a sale awaiting signature, a distribution under consideration, a proposed retirement, gives the assessment its anchor and the report its scope.
The trust's working papers show how the trustee has actually been functioning: minutes or notes of trustee decisions, correspondence with advisers, accounts and tax filings, and the trustee's part in recent transactions. A pattern of engaged, comprehending participation that has recently deteriorated tells one story; a signature applied to documents the trustee demonstrably never engaged with tells another. The records let the assessor test the present picture against the office as it has really been exercised.
Relevant health records may help identify an impairment or disturbance and its course. A formal diagnosis is not always necessary and does not by itself establish inability. Explain the link between any identified impairment and the trustee functions assessed, with the limitations of the evidence.
Assess the trustee’s supported understanding of the trust, beneficiaries, duties and decisions in issue. Use the actual documents and realistic examples, with privacy and communication help as appropriate. Record the response accurately and recognise that short retention can be sufficient for a decision.
Those around the trust hold useful history, and almost all of them hold an interest. Co-trustees know how the person has functioned in the role; beneficiaries have watched over years; solicitors and accountants have contemporaneous impressions from real transactions. Their accounts should be taken, attributed and weighed against their position in the trust, with the report transparent about who said what, because in a conflicted trust the provenance of every account is part of the evidence itself.
Give all practicable support before concluding that the trustee cannot decide. This may include accessible documents, advice, timing and further sessions where useful. Capacity evidence informs the legal position; it does not itself permit continuing in office or replacing a trustee regardless of the trust and statutory rules.
Describe the trust, functions assessed, evidence, support, responses, functional analysis and any causal link, with clear limits. The report may assist advisers or a court, but the legal route for acting, retirement or replacement requires separate advice on the trust and circumstances.
The evidence for a trustee capacity report runs from the trust documents through the working records and medical history to the trustee's own words at its centre, each source weighed with its provenance in view. Define the trustee decisions precisely, gather the evidence before opining and show the reasoning in full, because trustee findings move offices, transactions and family settlements, and they deserve evidence equal to their consequences.
No. A diagnosis does not establish lack of capacity. For a decision under the Mental Capacity Act, consider the relevant information and practicable support, then assess understanding, retention, use or weighing and communication by any means. Any inability must be caused by an impairment of, or disturbance in the functioning of, the mind or brain. Will-making has its own legal test.
The trust deed, details of the trust property and pending decisions, recent examples of the trustee's engagement with trust business, medical records and any earlier assessments. Co-trustee accounts help, provided their own interests are borne in mind.
A fully evidenced report matters most where the trustee's removal or replacement is contemplated, where beneficiaries are in conflict, or where trust land is being sold and the Court of Protection may be involved because the trustee holds a beneficial interest. Can someone have capacity for one decision but not another? Yes. Capacity is decision-specific and time-specific. The assessment must identify each decision and relevant time rather than give a general label.
The related guides below provide further explanation of the decisions, evidence and legal processes discussed here.
Ask a trust solicitor to define the legal functions and supply the trust documents before assessment. Identify pending decisions, available support and any disputed accounts, and keep appointment or replacement advice separate from capacity evidence.
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