Legal Considerations After a Dementia Diagnosis: Planning for Driving, Wills, Guardians and Power of Attorney
A diagnosis of dementia can bring relief, fear, confusion and many practical questions at once. Alongside medical care and family support, legal planning becomes a key part of protecting choice, dignity and safety.
The best time to plan is early, while the person can still clearly express their wishes and make legally valid decisions. That does not mean rushing or taking control away. It means creating a clear framework so the right people can help if decision-making becomes harder later.
This article is general information for Australian families and is not legal or medical advice. Laws and forms vary between states and territories, so speak with a solicitor, GP or relevant local authority for advice about a specific situation.
Driving after a diagnosis needs honest review
A diagnosis of dementia does not always mean someone must stop driving straight away. Many people in the early stages can still drive safely. The question is whether symptoms affect the skills needed on the road, such as:
Judgement and reaction time
Memory for routes and road rules
Attention in busy traffic
Ability to manage unexpected situations
Confidence and awareness of mistakes
Families often notice changes before the driver does. Examples include getting lost on familiar roads, minor scrapes, missing signs, driving too slowly or too fast, or feeling anxious in traffic.
The safest approach is to raise concerns early and respectfully. A GP can assess health factors and advise whether the person should have a formal driving assessment. In Australia, drivers also have obligations to notify the relevant state or territory licensing authority about medical conditions that may affect driving.
Driving should be reassessed when symptoms change, not only at fixed intervals. A review may be needed after a new diagnosis, medication change, accident, near miss, or reports from family members.
If driving must reduce or stop, plan alternatives before a crisis. This might include community transport, taxi vouchers, rides from family, grocery delivery, medical transport services or public transport practice on familiar routes.
Wills should reflect current wishes
A will sets out what should happen to a person’s estate after death. After a diagnosis of dementia, reviewing the will can help confirm that it still reflects current wishes.
This is especially useful if there have been major life changes, such as:
A new relationship or separation
Death of a spouse, partner or beneficiary
Birth of grandchildren
Change in assets, property or superannuation
Family conflict or changed caregiving roles
To make or update a will, a person must usually have testamentary capacity. In simple terms, they need to understand what a will does, broadly know what they own, recognise who may have a claim on their estate, and understand the effect of their decisions.
A diagnosis alone does not remove capacity. Depending on their symptoms, some people in early stages of dementia, can still make a valid will. The key is timing and evidence. A solicitor may suggest a medical capacity assessment, especially if family disagreement is likely.
Avoid making informal changes at home or relying on verbal promises. A properly prepared will reduces confusion and protects the person’s wishes.
An enduring guardian can make personal and lifestyle decisions
An enduring guardian is someone appointed to make certain personal, health and lifestyle decisions if the person later loses capacity to make those decisions themselves. The exact name and process differ across Australia. Some states and territories use different terms, but the purpose is similar.
An enduring guardian may be able to make decisions about matters such as:
Where the person lives
Health care and medical treatment
Support services at home
Access to services
Personal care arrangements
These powers can be limited or broad, depending on the document and local law. The person appointing the guardian can often include directions, preferences or limits.
Choosing the right person matters. An enduring guardian should be calm under pressure, willing to consult, respectful of the person’s values and able to work with doctors, aged care providers and family members.
The role is not about taking over. It is about standing in the person’s shoes when they cannot decide for themselves.
Enduring power of attorney protects financial decision-making
An enduring power of attorney allows a trusted person to make financial and legal decisions if the person loses capacity, or sometimes earlier if the document allows it. Again, the rules and forms vary by state and territory.
This role can cover practical tasks such as:
Paying bills
Managing bank accounts
Dealing with Centrelink or service providers
Managing property
Signing legal or financial documents
Arranging aged care payments
The word enduring matters. A general power of attorney may stop working if the person loses capacity. An enduring power of attorney is designed to continue when capacity is lost, subject to the relevant law and the terms of the appointment.
This is one of the most significant steps in dementia because financial tasks can become difficult long before a person needs full-time care.
Choose an attorney carefully. The person should be trustworthy, organised and willing to keep records. In some cases, appointing two people together can add protection, but it can also cause delays if they disagree. A solicitor can explain the best structure. Your attorney and your guardian do not have to be the same people, and often it makes sense that they are not.
Capacity can change from day to day
Capacity is decision-specific. A person might be able to decide what they want for dinner but not understand a complex property transaction. They might also be clearer in the morning than late afternoon.
That is why families should not assume incapacity too early. Support decision-making where possible. Use plain language, give time, reduce distractions and involve trusted health or legal professionals.
At the same time, do not leave legal planning until there is a crisis. If documents are not in place and the person loses capacity, family members may need to apply to a tribunal or court for authority to make decisions. That can take time and may add stress during an already difficult period.
Practical steps to take after diagnosis
A calm checklist can make the next stage more manageable.
Book a medical review to discuss driving, medication and future planning.
Check whether the licensing authority needs to be notified.
Review the will with a solicitor.
Put enduring power of attorney documents in place or update old ones.
Appoint an enduring guardian or equivalent decision-maker where available.
Talk about care preferences, living arrangements and values.
Store documents safely and tell trusted people where they are.
Review plans after major health, family or financial changes.
As much as possible, include the person with dementia in every discussion they can take part in. Legal planning works best when it protects their voice, rather than replacing it.
A supportive conversation now can prevent conflict later
These conversations can feel uncomfortable. Some people worry that raising legal planning will sound like giving up. In reality, it is a way to preserve independence for as long as possible.
Clear documents help families avoid guesswork. They also give doctors, banks, aged care providers and government agencies confidence about who can make decisions when help is needed.
The next step is simple: gather the current will, any power of attorney documents, medical information and a list of concerns. Then book time with a solicitor familiar with elder law or estate planning in the relevant state or territory.
Early planning cannot remove every challenge of dementia, but it can reduce uncertainty. More than anything, it helps keep future decisions anchored to the person’s wishes.
Contact Consult Neuropsychology for further information about legal considerations after a dementia diagnosis, or to arrange a capacity assessment if this has been requested by your solicitor to progress any legal paper work.
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