Advance Choice Documents (ACDs): Recording Your Mental Health Treatment Wishes
Advance Choice Documents (ACDs) are a key reform of the Mental Health Act 2025, which received Royal Assent on 18 December 2025 — but the ACD provisions are not yet in force. They will let people record treatment preferences in advance, to be taken into account when they later lose capacity due to mental illness. This guide explains the existing 'advance decision to refuse treatment' framework under the Mental Capacity Act 2005 and the new statutory ACD regime created by the Mental Health Act 2025.
Key points
- An Advance Choice Document (ACD) records your treatment preferences for if you later become unable to make decisions due to mental illness.
- ACDs were created by the Mental Health Act 2025 (Royal Assent 18 December 2025). Not yet in force as at August 2026 — commencement will be phased over several years.
- Until ACDs are introduced, you can use existing tools: Advance Decision to Refuse Treatment (ADRT) under s.24-26 Mental Capacity Act 2005 (binding for refusal of physical treatment), and Advance Statements (statements of preference, not legally binding but considered by clinicians).
- ADRTs CANNOT be used to refuse treatment given under the Mental Health Act 1983 (compulsory mental health treatment) — they apply to treatment outside the MHA context.
- ACDs under the Act will sit alongside existing ADRTs and Advance Statements, with a particular focus on mental health admission, medication preferences, family contact, and triggers/responses.
- ACDs will be reviewable, revocable, and must be made with capacity. They will be recorded on the patient's NHS record and shared with relevant services.
- The Act also strengthens the Nominated Person (replacing the Nearest Relative) and the right to challenge detention decisions.
What Advance Choice Documents are designed to do
The Mental Health Act 2025 creates statutory ACDs as a way for people who have experienced mental illness — or are at risk of acute relapse — to record:
- Preferred medications and dosages, and medications to avoid.
- Approaches that have worked or backfired in previous admissions.
- Triggers and early warning signs.
- Preferred family/friend contacts and the role they should play.
- Wishes about admission to specific units, or avoiding specific units.
- Cultural or religious preferences relevant to care.
- Whether they want to be detained in hospital or, where clinically appropriate, treated in the community.
The aim is to give patients greater autonomy and reduce the trauma of compulsory treatment by aligning it more closely with their stated wishes. Research (and the Wessely Review 2018) found that many compulsory admissions go badly because clinical staff do not know patient preferences from previous experiences.
Tools available now under the Mental Capacity Act
Until ACDs are in force, three existing tools apply:
- Advance Decision to Refuse Treatment (ADRT) under sections 24-26 Mental Capacity Act 2005. Legally binding refusal of specified medical treatments while you have capacity. Must be in writing, signed and witnessed for life-sustaining treatment. ADRTs do not bind compulsory mental health treatment under the MHA 1983 — but they bind physical treatment given to someone admitted under the MHA who has capacity to refuse.
- Advance Statements — statements of wishes and feelings about future treatment. Not legally binding but the clinician must take them into account when making best interests decisions under section 4 MCA 2005.
- Lasting Power of Attorney for Health and Welfare — appointing someone to make health decisions for you when you lose capacity. Can include power to refuse life-sustaining treatment if specifically authorised.
For mental health treatment specifically, ADRTs have limited reach because the MHA gives clinicians power to give treatment without consent. But ADRTs can still bind decisions about physical treatments (surgery, blood products) and end-of-life care.
What the Mental Health Act 2025 provides
The Mental Health Act 2025 (introduced as a Bill in November 2024) provides for statutory ACDs with key features:
- Statutory recognition — the ACD will be a named document in the MHA framework, with clinicians required to "consider" it when making decisions about admission, treatment, and discharge.
- Reviewability — ACDs can be reviewed and updated at any time with capacity.
- Recorded on NHS systems — ACDs will be added to the patient's electronic record and shared with relevant teams.
- Not binding on the MHA — the Act does NOT make ACDs binding on compulsory treatment. Clinicians can still detain and treat under the MHA framework. But they must take ACD wishes into account and document their reasons for departing.
- Capacity assessment — the ACD must be made while the person has capacity to make it. This is a deliberate safeguard.
- Nominated Person involvement — the new Nominated Person (replacing the Nearest Relative) can help interpret and apply the ACD.
As at August 2026 the Mental Health Act 2025 (c.33) has Royal Assent (18 December 2025), but the ACD provisions have not yet been commenced — only sections 51 and 52 of the Act came into force on 6 April 2026. Commencement of the substantive provisions, including ACDs, will be phased over several years by implementing regulations.
How to start preparing now
Even before the statutory ACD framework, you can:
- Discuss your preferences with your care team — community mental health team, GP, psychiatrist. Ask them to record your wishes on your NHS record.
- Make an Advance Statement — informal but written document setting out your wishes. Templates are available from Mind, Rethink Mental Illness, and the Royal College of Psychiatrists.
- Make an Advance Decision to Refuse Treatment (ADRT) if there are specific medications or treatments you want to refuse. Use the MCA 2005 framework — written, signed, witnessed.
- Make an LPA for Health and Welfare — appointing a trusted person to make decisions if you lose capacity. £82 OPG fee.
- Carry a wallet card or wristband — flagging that you have an Advance Statement and where to find it.
- Talk to your Nominated Person (or under current law, your Nearest Relative) about your preferences so they can advocate for you.
Limits of ACDs and Advance Decisions
It is important to understand the limits:
- Neither ACDs nor ADRTs can prevent compulsory admission and treatment under the MHA where the clinical and legal criteria are met. The clinical professional and AMHP can detain you and the treatment provisions of the MHA still apply.
- An ADRT for life-sustaining treatment must specifically state it applies even where life is at risk, and must be in writing, signed and witnessed.
- Capacity at the time of making the document is essential. An ADRT made while psychotic or severely depressed without capacity is invalid.
- Specific situations not anticipated in the document fall back on best interests decision-making.
- Family disputes about the ACD's meaning can lead to Court of Protection involvement.
Despite the limits, ACDs and existing advance tools give clinicians real information about your preferences. Treatment that respects past wishes is usually less traumatic for everyone involved.
Frequently asked questions
Are ACDs in force yet?
Can I refuse to be sectioned in advance?
How do I make an Advance Decision to Refuse Treatment?
Do clinicians have to follow my ACD?
What if I lose capacity to update my ACD?
What to do next
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Related tools and templates
Compare your options, work through the steps, or send a letter.
Official bodies and resources
Mind
CharityA mental health charity providing information, advocacy and local services across England and Wales.
Rethink Mental Illness
CharityA charity providing advice, advocacy and local support for people severely affected by mental illness and their carers.
Citizens Advice
CharityProvides free, confidential, and independent advice on a wide range of issues including benefits, housing, debt, and employment.
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