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Wills, advance decisions and advance care plans

Reading time: 4 minutes Last reviewed: 8th May 2026 Clinically reviewed by The Dementia Service

In plain English

A diagnosis of dementia is the right time to review or write a will, consider an advance decision to refuse specific treatments, and discuss an advance care plan. Each is a legal document with specific requirements; doing them while capacity is intact gives the person the most control.

The three documents

Together with a Lasting Power of Attorney, these documents give the person the most influence over their future.

Capacity to make these documents

Capacity is decision-specific. To make a will, the person must understand:

A diagnosis of mild dementia does not prevent will-making. A solicitor or doctor can provide a capacity opinion if there is any concern. The Banks v Goodfellow test is the historical legal standard.

Wills

If you do not have an up-to-date will, your estate is distributed by intestacy law, which may not reflect your wishes. Common situations that need a new will:

A solicitor specialising in older people's law (Solicitors for the Elderly accredited) is recommended for wills involving someone with a dementia diagnosis, both for the drafting and the contemporaneous capacity assessment.

Advance Decision to Refuse Treatment

An ADRT is a legally binding document under the Mental Capacity Act 2005. It allows you to refuse specific medical treatments in advance, in case you lose capacity to refuse them at the time. Common subjects include:

For an ADRT to refuse life-sustaining treatment to be valid, it must be:

An ADRT cannot demand treatment (only refuse it), cannot require something illegal (such as assisted dying), and cannot pre-decide care that should be made in best-interests context. A copy should be with your GP record, your hospital record, your family, and ideally your attorneys.

Advance Care Plan

Less formal than an ADRT, an Advance Care Plan records preferences for future care:

An Advance Care Plan is not legally binding but is influential in shaping decisions made in your best interests if capacity is lost. The ReSPECT process (Recommended Summary Plan for Emergency Care and Treatment) is the standard UK framework used by many NHS regions for recording emergency care preferences.

Practical priorities

  1. Update your will, if needed, with a Solicitors for the Elderly accredited solicitor;
  2. Discuss an Advance Decision to Refuse Treatment with your GP and family;
  3. Complete a ReSPECT form (or equivalent) with your GP;
  4. Put a Lasting Power of Attorney in place for both health and finance;
  5. Tell family where these documents are kept.

Where to get help

Frequently asked questions

Can I make a will after a dementia diagnosis?

Yes, provided you have the specific capacity to understand the will. Mild dementia does not prevent will-making. A solicitor can assess capacity and provide a contemporaneous opinion.

Is an Advance Decision legally binding?

Yes, where it is valid (in writing, signed by you and a witness, applicable to the situation, made with capacity) under the Mental Capacity Act 2005.

Can I refuse food and fluids in advance?

An Advance Decision can refuse clinically administered nutrition and hydration. It cannot refuse food or fluids offered orally (these are considered basic care).

What is ReSPECT?

Recommended Summary Plan for Emergency Care and Treatment. A standardised UK form used to record preferences for emergency care, completed with a clinician.

Where should I keep these documents?

With your solicitor (will), with your GP (ADRT, ReSPECT, Advance Care Plan), with your attorney(s), and in an accessible place at home that family members know about.

What to do next

  1. Update your will with a Solicitors for the Elderly accredited solicitor.
  2. Discuss an Advance Decision to Refuse Treatment with your GP and family.
  3. Complete a ReSPECT form or local equivalent with your GP.

References

  1. Mental Capacity Act 2005, sections 24 to 26.
  2. Solicitors for the Elderly. https://www.sfe.legal
  3. Compassion in Dying. https://compassionindying.org.uk
  4. ReSPECT process. https://www.resus.org.uk/respect