LPA and Alzheimer’s: A Complete Guide for People Diagnosed and Their Families

A diagnosis of Alzheimer’s disease or dementia brings profound changes for individuals and their families. Among the many decisions to make, one of the most critical is understanding how to protect a person’s financial and personal interests through legal documentation. A Lasting Power of Attorney is a legal tool that allows someone to appoint trusted individuals to make decisions on their behalf if they become unable to do so. For families affected by Alzheimer’s, acting quickly to establish an LPA for someone with early dementia in the UK becomes increasingly important, as the ability to make these arrangements depends on having mental capacity at the time of signing.

What Alzheimer’s Means for Legal Planning

Alzheimer’s disease progressively affects cognitive function, memory, and decision making ability. Early diagnosis creates a critical window for legal planning while the person still has capacity. Understanding these changes helps families recognise why securing legal arrangements early is essential. The disease does not follow a predictable timeline for everyone, making professional guidance valuable.

When someone receives an Alzheimer’s diagnosis, immediate questions often arise about protecting their interests. Dementia affects different people at different rates, but the general pattern involves gradual decline in mental capacity. This decline has direct legal implications because most legal documents, including a Lasting Power of Attorney, must be signed when the person has full mental capacity to understand what they are doing. Once capacity is lost, it becomes far more difficult and costly to arrange protection for finances and personal welfare.

Families should treat an Alzheimer’s diagnosis as a signal to review current legal arrangements and consider what additional protections may be needed. Acting during early stage dementia creates a window to establish crucial protections while the person can still participate in the process and express their wishes.

Can Someone with Alzheimer’s Still Make a Lasting Power of Attorney?

The legal answer depends on capacity at the time of signing. Someone with early Alzheimer’s may still have the mental capacity to execute an LPA, but this requires careful assessment. Professional guidance is essential to confirm capacity and ensure the document is valid. A solicitor experienced in this area will evaluate whether the person understands the nature and effect of the LPA being created.

The law does not prevent someone with an Alzheimer’s diagnosis from making an LPA. However, the person must have mental capacity at the moment of signing. Capacity is not an all or nothing concept; someone may retain capacity to make certain decisions whilst lacking capacity for others. In early stage Alzheimer’s, many individuals retain sufficient capacity to understand the purpose of an LPA and to appoint an attorney to act on their behalf.

A medical diagnosis of Alzheimer’s alone does not prove incapacity. Instead, the focus is on whether the individual understands what the LPA is, who they are appointing, what powers they are granting, and why it matters. Making an LPA with dementia remains possible when approached correctly and with professional support. Delays increase the risk that capacity will deteriorate beyond the point where an LPA can be executed, leaving families in a vulnerable position with no legal authority to manage affairs.

What Is the Capacity Assessment Process?

Assessing capacity for an LPA in the context of Alzheimer’s involves specific legal standards. Solicitors use the capacity test set out in the Mental Capacity Act 2005 to determine whether the person understands the decision they are making. This assessment is practical and focused on the specific decision of whether to create an LPA.

The capacity assessment does not require perfect memory or complete understanding of all financial or personal details. Instead, it focuses on four core areas: understanding the nature of the power being created, understanding the scope and effect of the LPA, retaining the information long enough to make the decision, and communicating the decision. For someone with early Alzheimer’s, capacity may exist even when some memory loss is present, provided the person grasps the fundamentals of what an LPA is and what it allows their chosen attorney to do.

An estate planner should meet with the person privately and may suggest that a GP or other healthcare professional provide a letter confirming that capacity exists. This creates a clear record that can protect the LPA from later challenges. The assessment is not about denying people their rights; rather, it ensures that when capacity does exist, it is properly documented and the LPA is legally secure.

How Do You Choose Attorneys When a Parent Has Alzheimer’s?

Selecting the right attorney is one of the most important decisions in an LPA. When a parent has Alzheimer’s, this choice becomes even more significant because the attorney will eventually manage critical aspects of their life and finances. Families should consider trustworthiness, willingness to take on the role, and the ability to handle significant responsibility.

An attorney does not need to be a professional, though professional attorneys are an option. Many families appoint adult children, spouses, or trusted friends. The key is selecting someone the person with Alzheimer’s trusts and who demonstrates honesty, reliability, and good judgment. It is also wise to consider appointing joint and several attorneys, meaning more than one person shares the responsibility, which adds a layer of protection and ensures that decisions are not made by one person alone.

Some families choose to appoint a professional firm alongside a family member, combining the emotional connection of a family attorney with the professional oversight of an experienced firm. The ultimate guide to Lasting Powers of Attorney covers attorney selection in depth, including practical advice on multi generational planning and conflict prevention within families.

What Is Health and Welfare LPA Considerations for Alzheimer’s Patients?

A Health and Welfare LPA allows the appointed attorney to make decisions about medical care, living arrangements, and personal welfare. For someone with Alzheimer’s, this power becomes increasingly important as the disease progresses and medical decisions become more frequent and complex. The attorney can make decisions about treatment options, care arrangements, and day to day personal matters when the person no longer has capacity to decide.

This type of LPA is particularly significant for Alzheimer’s patients because medical care decisions often arise suddenly and require prompt action. Without a Health and Welfare LPA in place, family members have no legal authority to make these decisions, and hospitals or care facilities may require a court order, which is slow and expensive. A properly drafted LPA prevents this scenario and ensures that the person’s medical wishes are followed.

When signing a Health and Welfare LPA, the person should consider including guidance on their preferences for future care. Even though the attorney makes decisions once capacity is lost, the person can provide written instructions about what matters to them. The complete guide to Health and Welfare LPA explains how to structure these preferences and ensure they are respected throughout the course of the illness.

What Is Property and Financial Affairs LPA Considerations?

A Property and Financial Affairs LPA grants authority over money, property, investments, and business interests. For Alzheimer’s patients, this power prevents financial neglect and ensures that bills are paid, investments are managed, and property is maintained even when capacity is lost. Without this LPA, significant delays and costs arise if legal action becomes necessary.

Unlike a Health and Welfare LPA, a Property and Financial Affairs LPA can be used immediately, even if the person still has capacity. This is valuable because it allows the appointed attorney to assist with complex financial matters early on, gradually taking over as the person’s ability to manage finances declines. The person can sign the document while they are fully capable but allow the attorney to begin managing affairs right away.

When creating a Property and Financial Affairs LPA, the person should consider which specific powers to grant. Some people prefer their attorney to have very broad powers covering all financial and property matters, whilst others prefer to limit authority in specific ways.

What Is LPA and Will Capacity: Understanding the Connection?

A common question for families is whether someone with Alzheimer’s can also make a Will. The answer turns on capacity, and the capacity test for a Will is different from the capacity test for an LPA. Understanding this distinction is important because it affects planning strategy and the order in which documents should be executed.

The capacity required to make a Will is more demanding than the capacity required for an LPA. To make a Will, the person must understand the nature and extent of their property, the people who depend on them or have legitimate claims, and the disposition being made. For someone with advancing Alzheimer’s, this higher threshold may be difficult to meet even when capacity for an LPA still exists. This underscores why establishing an LPA early is crucial: it should be done before the person’s capacity declines to the point where a Will becomes impossible.

If someone with Alzheimer’s wishes to make a new Will or update an existing one, professional assessment and specialist legal advice are essential. Some families find it wise to prioritise the LPA because it has immediate protective effect, whilst addressing Will planning separately or in consultation with a specialist.

The feeling clients consistently describe after completing the process is relief. At Elwyn & Mabel, we manage the full process: initial advice, drafting, signing, all liaison with certificate providers and attorneys, review before submission, and registration with the Office of the Public Guardian. If you want to learn how to get started, download the free Lasting Power of Attorney Checklist:

Please note: Lasting Powers of Attorney apply in England and Wales only. Different rules apply in Scotland and Northern Ireland.

Frequently Asked Questions

What is the difference between an LPA and a deputyship?

An LPA is a document the person signs whilst they have capacity, appointing someone they trust. A deputyship requires a court order after capacity is lost and is slower and more expensive. An LPA avoids the need for a deputyship by establishing authority in advance.

Can someone make an LPA on behalf of a person with Alzheimer’s without their involvement?

No. The person must sign the LPA themselves whilst they have capacity. No one can create an LPA for someone else. Once capacity is lost, only a court ordered deputyship becomes available, which is why early action is essential.

How long does it take to create an LPA for someone with Alzheimer’s?

The process typically takes two to four weeks with a solicitor, depending on complexity and how quickly documents are signed and returned. Early planning is important because delays increase the risk that capacity will decline before the LPA is complete.

Can an LPA made by someone with Alzheimer’s be challenged after they die?

What happens to an LPA when someone loses capacity?

The LPA becomes active and the attorney can begin making decisions on the person’s behalf. The attorney must follow the law and act in the person’s best interests. The LPA does not end; it continues until revoked, the person dies, or other circumstances change.

TL;DR: LPA and Alzheimer’s

An Alzheimer’s diagnosis makes early legal planning essential. Someone with early stage Alzheimer’s may still have the capacity to create a Lasting Power of Attorney, but this window closes as the disease progresses. Choosing trustworthy attorneys, obtaining a clear capacity assessment, and addressing both health and financial matters through separate LPAs creates comprehensive protection.

• An Alzheimer’s diagnosis creates an urgent need to establish a Lasting Power of Attorney whilst capacity exists.
• Capacity for an LPA is determined at the moment of signing and focuses on understanding the nature and effect of the document.
• Health and Welfare LPA and Property and Financial Affairs LPA serve different purposes and both should be considered.
• Choosing trustworthy, capable attorneys and obtaining professional capacity assessment protects the LPA from future challenge.
• Early action with a solicitor prevents the need for costly deputyship proceedings and ensures the person’s wishes are respected.

More From Elwyn & Mabel

Creating a Lasting Power of Attorney is one of the most important steps in planning for the future. Download the free Lasting Power of Attorney Checklist for a step by step guide to getting your LPA in place, explained in plain language.

For personalised guidance on creating a Lasting Power of Attorney or any aspect of estate planning, book a free consultation with Elwyn & Mabel. The team will answer questions, review individual circumstances, and help put the right plan in place.