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GUIDES

Common reasons COP3 forms are rejected or questioned

A COP3 may need clarification where it addresses the wrong decisions, omits support or reasoning, or no longer reflects the person’s circumstances. Read the court’s actual request before commissioning replacement evidence; not every question requires a new assessment.

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Author and Publication

Author: Nellie Supports Ltd

Publication Date: 15/05/2026

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Citation

Department for Constitutional Affairs (2007) Mental Capacity Act 2005: Code of Practice. London: The Stationery Office.

Copyright

Copyright © 2026 Nellie Supports Ltd. All rights reserved.

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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.

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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.

Abstract

A COP3 may need clarification where it addresses the wrong decisions, omits support or reasoning, or no longer reflects the person’s circumstances. Read the court’s actual request before commissioning replacement evidence; not every question requires a new assessment. This guide covers the relevant evidence, support, process and limits in England and Wales.

What is on this page

A COP3 may need clarification where it addresses the wrong decisions, omits support or reasoning, or no longer reflects the person’s circumstances. Read the court’s actual request before commissioning replacement evidence; not every question requires a new assessment.

The wrong decision was assessed

COP3 must identify the decisions in the application and address each one. A description such as confusion, dementia or needing help does not by itself show inability to make those decisions. Check that the numbering and reasoning correspond with Part A.

Diagnosis substituted for functional analysis

A diagnosis may help explain the concern but cannot substitute for evidence of the decision-making abilities. The form asks about understanding, retention, use or weighing and communication, with an explanation for each answer. Missing reasoning may call for clarification; the court decides what additional evidence is needed.

Explain how impairment causes any inability

If an inability is found, explain why an impairment of, or disturbance in the functioning of, the mind or brain causes it. Identifying a condition and a difficulty separately does not show the link. A reasoned explanation supports scrutiny without guaranteeing that the evidence will be accepted.

The assessment is stale

COP3 asks for current information. Its adequacy depends on the relevant decision, any changes and the court’s directions, rather than a universal expiry date. Ask the assessor whether an update or new assessment is needed if circumstances have materially changed.

No evidence of practicable steps

The Act requires that all practicable steps are taken to help the person decide before they are treated as unable to do so, and the court expects to see them. Forms are questioned where there is no record of how the assessment was adapted: whether the person was seen at their best time of day, whether information was simplified and broken down, whether communication aids or an interpreter were used, and whether a second visit was offered where presentation fluctuated. One line stating that support was provided is assertion, not evidence.

Internal inconsistency and contradiction with other evidence

Different abilities can coexist: fluent speech or independence in daily life does not establish capacity for every financial or welfare decision. Explain apparently inconsistent evidence and whether it concerns the same decision, support and time. Correct factual mistakes and address genuinely contrary findings.

Doubts about the assessor

The assessor should explain their qualifications, training, experience, relationship with the person and freedom from conflict. A treating relationship does not automatically disqualify them, and external instruction does not automatically establish independence. The issue is suitability and the quality of the evidence for this question.

How to avoid a rejected or questioned COP3

Before filing, check the decisions, relevant information, support, findings, causal explanation, dates and signature. Provide relevant records and disclose gaps. If the court asks questions, respond to the directions through the appropriate person rather than assuming the entire assessment must be replaced.

Key takeaway

A complete, current and decision-specific COP3 helps the court understand the evidence. It supplies an opinion; the court decides capacity, the need for further evidence and whether an order should be made.

Frequently asked questions

Does a diagnosis automatically mean someone lacks capacity?

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.

What evidence is useful for COP3 Mental Capacity Assessment?

Keep the letter of instruction, the records reviewed, the assessor's notes and the reasoning behind each conclusion. When a COP3 is questioned, the fastest resolution is usually a prompt, well-evidenced response from the original assessor, which is only possible where the underlying file is complete.

When is a formal assessment for COP3 Mental Capacity Assessment useful?

Read the court’s concerns first. A correction, explanation or focused update from the original assessor may suffice; a new assessment is appropriate where the evidence or circumstances require it. Seek advice on the directions and time for responding.

Related mental capacity assessment pages

The related guides below provide further explanation of the decisions, evidence and legal processes discussed here.

COP3 Mental Capacity Assessment

Mental capacity assessments for professional deputies

What decisions can a COP3 cover?

Read guide

Practical next steps

Read the court’s request and identify whether it concerns an omission, a factual error, reasoning or changed circumstances. Ask the assessor to address that issue, and obtain advice before replacing the form or assuming the application has failed.

Primary sources and official guidance

Mental Capacity Act 2005

Mental Capacity Act Code of Practice

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