Testamentary Capacity (Wills)
Expert psychiatric evaluation of testamentary capacity—the testator’s mental state and legal ability to execute a valid will. We provide court-ready evidence for probate proceedings, including urgent reports available within 1-4 days.
Expert Type
- Forensic Psychiatrist
- Old Age Psychiatrist
- Consultant Neuropsychiatrist
- Consultant Psychologist
Applicable Law
- Banks v Goodfellow (1870)
- Mental Capacity Act 2005
- Civil Procedure Rules Part 35
- Administration of Justice Act 1982
When Needed
This assessment is essential when a testator’s mental competence is questioned during the drafting of a will or when contentious probate arises after death.
What Is a Testamentary Capacity (Wills) Assessment?
A testamentary capacity assessment is a formal psychiatric or psychological evaluation designed to determine if an individual possesses the requisite mental capacity to execute a legally binding will. Our expert witnesses provide a robust clinical opinion to ensure that the testator’s intentions are valid and protected from future legal challenges.
The assessment is primarily governed by the common law test established in Banks v Goodfellow (1870), which remains the leading authority in England and Wales. It ensures that the individual is free from insane delusions or cognitive impairments that would influence the distribution of their estate.
- Nature of the act — understanding the purpose and effect of making a will
- Extent of the estate — comprehending the nature and value of the property being bequeathed
- Moral claims — appreciating the potential claims of family members or beneficiaries
- Absence of disorder — ensuring no mental illness or delusion influences the testamentary disposition
- Information processing — the ability to weigh and retain relevant financial and personal information
- Communication of wishes — the capacity to clearly express intended distributions without undue influence.
Our specialists provide comprehensive reports for use in the Chancery Division (Probate) or other civil courts; testamentary capacity is not determined in the Court of Protection, adhering strictly to CPR Part 35 requirements. The clinical interview focuses on cognitive function, potential undue influence, and the testator’s long-term wishes.
In cases of retrospective assessments where the testator has passed, we conduct a meticulous review of medical records and witness statements to provide an expert opinion on the individual’s likely mental state at the time of execution.
Key Assessment Components
Our assessment evaluates the following areas:
Clinical Interview
Direct examination of the testator to evaluate cognitive function and memory.
Medical Record Review
A thorough analysis of GP records and hospital notes to identify historical mental health issues.
Cognitive Screening
Formal testing to identify impairments such as dementia or executive dysfunction.
Banks v Goodfellow Test
Application of the specific legal criteria to the clinical findings of the case.
Undue Influence Screening
Assessing whether the testator is vulnerable to coercion or external pressure.
Final Expert Report
A detailed report compliant with Civil Procedure Rules Part 35 (where proceedings are under CPR), providing an independent expert opinion on testamentary capacity.
Conditions That May Affect This Assessment
A range of psychiatric and psychological conditions can affect this assessment. These include:
Mental capacity can be temporary or fluctuating, meaning an individual may regain capacity during a lucid interval despite an underlying condition.
Assessment Process
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Instruction Received
Letter of instruction is reviewed, and relevant medical records are requested for the expert.
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Expert Matched
We select a specialist psychiatrist or psychologist with specific expertise in testamentary and capacity law.
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Assessment Conducted
The expert performs a face-to-face or remote clinical interview and reviews all collateral evidence.
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Report Delivered
A high-quality, court-compliant report is issued within the agreed timeframe to the instructing solicitor.
Turnaround Times
| Urgency Level | Timescale |
|---|---|
| Standard Report | 4-6 weeks from assessment |
| Priority Report | 1-2 weeks |
| Urgent Report | 1-4 days |
What’s Included in the Report
All reports are written to the highest forensic standards, and our experts are available to provide oral testimony in court if required.
Frequently Asked Questions
Need a Testamentary Capacity (Wills) Report?
Contact us today to secure an expert forensic psychiatrist for your case. We provide detailed CVs and transparent quotes within 60 minutes of your enquiry.
Related Mental Capacity & Probate Assessment Services
General capacity assessments for financial and welfare decisions.
Reports for the Court of Protection regarding property and affairs.
Evaluating vulnerability to coercion and external pressure.
Post-death evaluations of a testator’s mental state.
Determining capacity to conduct legal proceedings.
Assessing capacity to grant or revoke power of attorney.

