Dementia affects nearly one million people in the UK, and that number continues to grow. While many people associate dementia with memory loss, its impact extends far beyond forgetting names or appointments. It can affect a person’s ability to make important legal and financial decisions, including decisions about their estate.

Understanding how dementia influences estate planning can help families take proactive steps to protect their loved ones and ensure their wishes are respected.

Understanding Mental Capacity

For a Will to be legally valid, the person making it must have what is known as testamentary capacity. This means they must:

  • Understand that they are making a Will.
  • Know the nature and value of their assets.
  • Recognise who may have a claim on their estate.
  • Be free from any condition that could influence their decisions unfairly.

A diagnosis of dementia does not automatically mean someone lacks mental capacity. In the early stages, many individuals are still fully capable of making informed decisions about their estate. However, as the condition progresses, capacity may fluctuate or decline.

Why Timing Matters

One of the biggest mistakes families make is delaying estate planning conversations.

Many people assume there will always be time to create or update a Will later. Unfortunately, dementia can progress unpredictably. If mental capacity is lost before estate planning documents are completed, options become significantly more limited.

Creating a Will, Lasting Power of Attorney (LPA), and other important legal documents while capacity remains intact helps ensure future decisions reflect the individual’s wishes.

Updating an Existing Will

Life circumstances often change. Marriages, divorces, births, deaths, property purchases, and changes in financial circumstances may all require updates to a Will.

If a person with dementia still has the necessary mental capacity, they can make changes to their Will. Solicitors and professional Will writers may recommend obtaining a medical assessment to provide evidence that the person understood the decisions they were making at the time.

This additional documentation can help reduce the risk of disputes later.

The Importance of a Lasting Power of Attorney

A Lasting Power of Attorney is often just as important as a Will.

An LPA allows a trusted person to make decisions on someone’s behalf if they lose the ability to make decisions themselves. There are two types:

  • Property and Financial Affairs LPA
  • Health and Welfare LPA

Without an LPA in place, family members may need to apply to the Court of Protection for authority to act, which can be costly, time-consuming, and stressful.

Establishing an LPA before dementia progresses can provide peace of mind for both the individual and their loved ones.

Reducing Family Disputes

When dementia is involved, family members may have concerns about whether decisions were made freely and with full understanding.

Clear estate planning can help minimise future disputes by:

  • Documenting intentions clearly.
  • Keeping records of professional advice received.
  • Obtaining medical confirmation of capacity where appropriate.
  • Regularly reviewing estate planning documents.

Transparency and professional guidance can go a long way in preventing misunderstandings and legal challenges.

Planning Ahead Provides Peace of Mind

While conversations about dementia and future planning can be difficult, early action provides greater control and certainty.

Estate planning is about more than distributing assets. It is about protecting your wishes, reducing stress for your family, and ensuring that important decisions are made by the people you trust.

If you or a loved one have concerns about dementia and estate planning, seeking professional guidance sooner rather than later can make all the difference.

Final Thoughts

Dementia does not necessarily prevent someone from making estate planning decisions, but timing is crucial. The earlier important documents are put in place, the more likely it is that an individual’s wishes can be respected and protected.

Planning ahead today can help provide clarity, security, and peace of mind for tomorrow.

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