Lasting Power of Attorney
When a loved one loses mental capacity, the steps you take — and the documents already in place — will determine how smoothly you can protect their health, finances, and dignity.
Understanding Capacity
In legal terms, mental capacity refers to a person's ability to make a specific decision at the time it needs to be made. Capacity can fluctuate — a person might be perfectly capable of deciding what they want for dinner but lack the cognitive ability to manage a complex financial portfolio or sell a house.
Under the Mental Capacity Act 2005, a person is deemed to lack capacity if they cannot do one or more of the following:
A formal capacity assessment is typically carried out by a medical professional — such as a GP or psychiatrist — or a trained social worker. They will conduct the assessment and provide written evidence, which is relied upon by banks, care providers, and the courts.
Importantly, capacity is decision-specific. A person may have capacity to make some decisions but not others. It is not an all-or-nothing test.
Can you set up an LPA after a diagnosis?
Yes — a diagnosis of early-stage dementia does not automatically remove capacity. Act quickly while capacity remains.
Timing Matters
Only valid while the donor has mental capacity. Often used for temporary situations — a hospital stay, working abroad, or managing a specific transaction.
⚠ Automatically invalid once capacity is lost
Explicitly designed to endure — remains valid and legally binding even after the donor has lost capacity. Provides protection for the future.
✓ Remains valid after capacity is lost
If an LPA is Already in Place
If your loved one had the foresight to set up an LPA before their capacity declined, the transition is significantly smoother — but there are still strict procedures to follow.
An LPA cannot be used until it has been officially registered with the Office of the Public Guardian. If the document was not registered when it was drawn up, initiate registration immediately. The process takes up to 20 weeks — do not delay.
Once registered, present the registered LPA (or a legally certified copy) and your own identification to the bank. Banks are legally obligated to freeze accounts if they discover the account holder has lost capacity and no registered LPA is on file.
If you hold a Health and Welfare LPA, ensure your loved one's GP, hospital consultants, and care home managers all have a copy on file. Without this, medical teams may not recognise your authority to make decisions.
Get several certified copies of the registered LPA from a solicitor. You will need to send these to multiple institutions — banks, utility companies, pension providers, and care facilities.
From the moment you start acting as attorney, keep meticulous records of every financial transaction. The OPG can investigate attorneys if financial abuse or mismanagement is suspected.
Health Decisions
A Health and Welfare LPA can only be used once the donor has lost capacity. Once activated, it grants you the authority to make critical choices about your loved one's:
Without a Health and Welfare LPA, next of kin have no legal authority to make medical or care decisions for an adult. Doctors, social workers, and local authorities will make decisions based on what they believe is in the patient's "best interests."
While professionals will usually consult the family, the final say rests with the medical team. If there is a dispute over care — for instance, choosing between home care and a residential facility — the lack of an LPA can lead to lengthy and stressful disagreements.
Legal Responsibilities
Acting as an attorney is not merely a formality — it carries heavy legal weight. These duties apply from the moment you begin acting under the LPA.
Every decision must be made for the benefit of the donor — not for the convenience of the attorney or other family members.
The donor's money must never be mixed with the attorney's own finances. Separate accounts must be maintained at all times.
Record every penny spent on the donor's behalf. Keep receipts, bank statements, and a clear log of all transactions.
Even if capacity is severely limited, try to involve the donor in decisions. Support their decision-making rather than simply taking over.
If No LPA Exists
If your loved one has already lost capacity and did not set up an LPA, you cannot create one retrospectively. To gain legal authority over their affairs, you must apply to the Court of Protection to become a Deputy.
| Fee Type | Amount |
|---|---|
| Court application fee | £385 |
| Potential hearing fee | £494 (if a hearing is required) |
| Assessment fee for a new deputy | £100 |
| Annual supervision fees | £35–£320 (depending on supervision level) |
| Security bond | Varies (based on the value of the estate) |
| Factor | LPA | Deputyship |
|---|---|---|
| Who decides? | The donor chooses their own attorney | A judge decides who is appropriate |
| Cost | £82 per document to register | £385+ application fee; ongoing annual fees |
| Timeline | ~20 weeks to register | 6–12 months or more |
| Ongoing supervision | Attorneys manage independently; OPG only intervenes if concerns arise | Annual financial reports required; mandatory security bond |
| Health & Welfare | Full Health & Welfare LPA available | Court rarely grants H&W deputyships; prefers one-off decisions |
| Emergency decisions | Attorney can act immediately once LPA is registered | Emergency court orders required for urgent decisions |
Sometimes a decision cannot wait for a standard deputyship application, which can take several months. In cases of severe medical emergencies or urgent safeguarding concerns — such as an imminent risk of financial abuse or eviction — you can apply for emergency court orders from the Court of Protection. These fast-tracked orders allow the court to make an immediate, one-off decision to protect the individual while a longer-term solution is arranged.
Practical Guidance
Navigating the rules surrounding an LPA when someone loses capacity can feel overwhelming. Here is a practical checklist to help you manage the transition.
Discuss future wishes with loved ones while they are completely healthy. Do not wait for a crisis.
Once an LPA is registered, get several certified copies from a solicitor. You will need to send these to multiple institutions.
If you are managing someone's finances, keep every receipt. The OPG can investigate attorneys if financial abuse or mismanagement is suspected.
If you hold a Health and Welfare LPA, ensure your loved one's GP, hospital consultants, and care home managers have a copy on file.
If you are struggling with a deputyship application or need to arrange a capacity assessment, consult a solicitor who specialises in elder law and the Court of Protection.
Common Questions
In legal terms, mental capacity refers to a person's ability to make a specific decision at the time it needs to be made. Under the Mental Capacity Act 2005, a person is deemed to lack capacity if they cannot understand the information relevant to the decision, retain that information long enough to make the decision, weigh up the information as part of the decision-making process, or communicate their decision. Capacity can fluctuate — a person might be capable of deciding what they want for dinner but lack the ability to manage a complex financial portfolio.
Yes — but time is of the essence. A diagnosis of early-stage dementia or Alzheimer's does not automatically mean a person lacks the capacity to create an LPA. As long as they understand the nature of the document they are signing, the powers they are handing over, and the implications of doing so, they can still legally appoint an attorney. A Certificate Provider — often a solicitor or GP — can confirm the donor's understanding at the time of signing.
An ordinary power of attorney is only valid while the donor has mental capacity. It is often used for temporary situations, such as a hospital stay or working abroad. A Lasting Power of Attorney is explicitly designed to endure — it remains valid and legally binding even after the donor has lost capacity. Only an LPA provides protection for the future.
It depends on the type. A Property and Financial Affairs LPA can be used while the donor still has mental capacity, with their permission — for example, if they struggle with mobility or prefer someone else to handle banking. A Health and Welfare LPA can only be used once the donor has lost mental capacity. It cannot be used to make health decisions while the donor is still capable of making them themselves.
If the LPA was signed but not yet registered, you can still submit it for registration after the donor has lost capacity — the registration process does not require the donor to have capacity. However, if the LPA was never signed, or if there are errors in the document, it will be too late to create a new one. This is why registering the LPA immediately after signing is so strongly recommended.
Without a Health and Welfare LPA, next of kin have no legal authority to make medical or care decisions for an adult. Doctors, social workers, and local authorities will make decisions based on what they believe is in the patient's "best interests." While professionals will usually consult the family, the final say rests with the medical team. If there is a dispute over care — for example, choosing between home care and a residential facility — the lack of an LPA can lead to lengthy and stressful disagreements.
If a person has already lost capacity and did not set up an LPA, you cannot create one retrospectively. To gain legal authority over their affairs, you must apply to the Court of Protection to become a Deputy. A Deputy functions similarly to an attorney but with much stricter oversight — including annual financial reports and a mandatory security bond. The process typically takes 6–12 months and costs significantly more than registering an LPA.
Yes. In cases of severe medical emergencies or urgent safeguarding concerns — such as an imminent risk of financial abuse or eviction — you can apply for emergency court orders from the Court of Protection. These fast-tracked orders allow the court to make an immediate, one-off decision to protect the individual while a longer-term solution is arranged.
The Court of Protection is generally reluctant to grant Health and Welfare deputyships. They prefer to make one-off decisions for specific medical issues rather than granting blanket authority to a family member. This means that without a Health and Welfare LPA, families may find themselves returning to court repeatedly for individual decisions — each time incurring costs and delays.
You will need to present the registered LPA (or a legally certified copy) and your own identification to the bank. Banks are legally obligated to freeze a person's accounts if they discover the account holder has lost capacity and no registered LPA is on file. Once the registered LPA is presented, the bank should allow you to manage the account as attorney. It is advisable to obtain several certified copies of the LPA, as different banks and institutions will each require their own copy.
Get Expert Help
Whether you need to activate an existing LPA, register one urgently, or explore deputyship options, our team can guide you through every step.
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