# Testamentary Assessment Costs for Complex Estates Source: https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england Canonical: https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england # Testamentary Assessment Costs for Complex Estates Complex-estate assessment fees depend on the work agreed, including records, communication support, meetings and reporting. Ask for the total price, exclusions and follow-up terms in advance. ## Author and Publication Author: Nellie Supports Ltd Publication Date: 15/05/2026 ​ ## Citation Mental Capacity Act 2005, c. 9. Available at: [https://www.legislation.gov.uk/ukpga/2005/9/contents](https://www.legislation.gov.uk/ukpga/2005/9/contents) ## Copywright Copywright © 2026 Nellie Supports Ltd. All rights reserved. ​ This article is made available for general information, education and professional reference. It may be downloaded, printed and shared for non-commercial purposes, provided that it is reproduced in full, is not altered in any way, and is properly cited as the work of Nellie Supports Ltd. This material must not be edited, adapted, sold, republished, incorporated into commercial products, or used for commercial training, assessment, report-writing or advisory services without prior written permission from Nellie Supports Ltd. ​ This article does not constitute legal advice, clinical advice or a substitute for a decision-specific professional assessment. Where legislation, government guidance, court forms or external professional materials are referred to, those materials remain subject to their own copyright, licensing and re-use terms. ## About this guide Complex-estate assessment fees depend on the work agreed, including records, communication support, meetings and reporting. Ask for the total price, exclusions and follow-up terms in advance. The sections below explain the evidence, practical steps and limits of the assessment or process. ## What’s on this page - [Contact](https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england) - [Overview](https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england) - [Frequently Asked Questions](https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england) - [Related Pages](https://www.nelliesupports.com/guides/testamentary-assessment-costs-for-complex-estates-in-england) Fees for a testamentary-capacity opinion vary with the agreed work: understanding the estate summary, reviewing records and previous wills, planning communication support, meeting the person and writing the analysis. Trusts, businesses or overseas assets may require more preparation without changing the Banks v Goodfellow test. Ask for a written quotation covering VAT, travel, further appointments, report or certificate, amendments and any later court work. Do not assume an advertised starting fee covers a complex instruction. ## Cost depends on scope, risk and evidence A straightforward testamentary capacity assessment may be relatively limited in scope. A complex estate assessment is different because the assessor may need to review more documents, understand more complicated asset structures, consider family and beneficiary dynamics, and explain the person’s ability to understand and weigh information at a higher level of complexity. ## Apply the right legal test For a person making their own will, apply Banks v Goodfellow: nature and effect of the will, broad extent of property, appreciation of possible claims and whether a disorder of mind influences the disposition in the legally relevant way. The person need not perform a financial audit or manage each asset personally. Complexity affects preparation and the salient information to explain, rather than creating a different legal test. ## What usually increases the cost Costs may increase where there are multiple previous wills, disputed family history, high-value assets, trust interests, business ownership, overseas property, tax-sensitive arrangements, incomplete documents, communication support needs, urgent timescales, safeguarding concerns or a need for a longer court-ready report. ## Why complex estates need tighter scoping A complex estate does not mean the assessor must perform a full financial audit or give legal advice. It does mean the instruction should identify the assets and relationships that matter for testamentary capacity. Solicitors should provide a clear summary of the estate, the proposed will, previous arrangements and the specific capacity question to be answered. ## Fixed fee, enhanced fee or bespoke quote Where the facts are straightforward, a standard-fee assessment may be appropriate. Where there are trusts, businesses, cross-border assets, significant dispute or extensive document review, an enhanced assessment or bespoke quotation may be more realistic because the work required is not the same as a simple will-capacity appointment. ## What should be included in the instruction The instruction should explain the proposed will, previous wills, estate summary, beneficiaries, people excluded or reduced, known diagnoses, communication needs, urgency, concerns about pressure and whether the report may be used in future litigation. ## When a detailed report is worth the extra cost A detailed report is often proportionate where the estate is high value, the person is vulnerable, family members are in conflict, instructions have changed suddenly, previous wills are inconsistent or the will is likely to be scrutinised after death. ## Costs should reflect professional risk A strong testamentary assessment is not only appointment time. It may include document review, planning, communication support, direct assessment, analysis, report writing and limitation management. Complex cases require enough time to produce a report that can be understood and tested. ## Key takeaway Costs for complex testamentary assessments vary because the work varies. The safest approach is to define the decision, provide the right evidence, identify the complexity and agree the level of report needed before the assessment is booked. ## Frequently asked questions ### How much does a testamentary assessment cost for a complex estate? The cost depends on the scope of work, documents to review, assessment time, urgency, complexity of the assets and whether a detailed report is required. Complex estates are often better scoped individually rather than treated as a standard appointment. ### Why do trusts or business assets affect cost? Trusts and business assets may affect what the person needs to understand in broad terms. They can also require more preparatory information, clearer solicitor instructions and more careful report reasoning, especially if beneficiaries or family members may later challenge the will. ### Is a complex estate the same as lacking capacity? No. A complicated estate does not itself mean the person lacks testamentary capacity. Apply Banks v Goodfellow to the proposed will and the person’s circumstances. Clear instructions, previous wills, a draft, a concise estate summary and relevant records may reduce avoidable work, but ask the provider what is required and agree the fee before proceeding. ## Related mental capacity assessment pages The related pages below explain connected decisions, evidence requirements and legal processes. ### Testamentary Capacity Assessment ### Testamentary assessments for clients with complex financial structures ### Testamentary capacity versus statutory will applications ### Read guide ## Practical next steps Before seeking a report, write down the exact decision, relevant date, reason for concern and intended use. Gather the documents that explain the real options and any communication needs. Check any required form or court direction, agree the scope and total fee, and clarify how missing evidence or further questions will be handled. ## Related information - [Mental Capacity Assessment to Revoke a Lasting Power of Attorney](https://www.nelliesupports.com/lasting-power-of-attorney-services/revoke-lpa) - [NHS Continuing Healthcare Support](https://www.nelliesupports.com/services/continuing-healthcare) - [CHC Appeal Application: Drafting and Submission](https://www.nelliesupports.com/services/continuing-healthcare/chc-appeal-application) --- Nellie Supports Ltd · 0333 987 5118 · nellie@nelliesupports.com Office 11 and 12, Unit 20, Springfield Business Park, Grantham, NG31 7FZ