How do you Invoke a Power of Attorney?

By Matt Cresswell, Founder of Power of Attorney Online and author of
Everything you ever wanted to know about LPAs (but were afraid to ask)

22nd October 2025

Updated: Thursday 27th August 2026

If you have searched How Do You Invoke a Power of Attorney?, you’re probably trying to work out something very practical: when does a Power of Attorney actually become usable, and what does an attorney have to do when the time comes? The word “invoke” is commonly used to describe the point at which an attorney starts using their legal authority, but it’s not really a formal step in the LPA process. With a Lasting Power of Attorney, the important questions are whether the LPA has been properly made and registered, what type of LPA it is, whether the donor still has mental capacity, and what the document says about when the attorney can act. A Property and Financial Affairs LPA can generally be used once it has been registered, including while the donor still has capacity if the LPA allows it. A Health and Welfare LPA is different: it can only be used when the donor lacks capacity to make the particular decision. Understanding that distinction matters because having an LPA in a drawer is not the same thing as having an LPA that an attorney can actually rely on.

For a Property and Financial Affairs LPA, the donor can choose whether their attorneys can act as soon as the LPA is registered or only if the donor later loses capacity. If the LPA is available for use and the donor wants help, an attorney can use it to deal with financial matters on their behalf. If the donor later loses capacity, the attorney can continue acting within the authority of the registered LPA.

A Health and Welfare LPA works differently. The attorney can only act when the donor lacks capacity to make the particular decision themselves. Until then, the donor remains the decision-maker.

So there is no button to press and no formal “invocation” ceremony. The important thing is knowing when the LPA can legally be used and how the attorney proves their authority to the organisation they are dealing with.

What does Power of Attorney actually mean?

“Power of Attorney” is a broad term for a legal arrangement that allows one person to give another person authority to act on their behalf. The person giving the authority is usually called the donor. The person receiving it is the attorney.

The word attorney can sound slightly confusing in this context because it doesn’t necessarily mean a solicitor or lawyer. Your attorney could be your husband, wife, partner, adult child, sibling, friend or another suitable person.

What the attorney can do depends on the type of Power of Attorney and the authority given.

That distinction is important. A Power of Attorney is not simply a general licence for another person to take over your life.

You decide what type of authority you want to give. With a Lasting Power of Attorney, you can create either a Property and Financial Affairs LPA, a Health and Welfare LPA, or both. GOV.UK confirms that these are the two types available in England and Wales.

There are also other forms of authority that people sometimes call a Power of Attorney, including an Ordinary Power of Attorney. An Ordinary Power of Attorney is generally used for temporary situations and only operates while the person giving the authority still has mental capacity.

For example, someone might give another person authority to deal with their finances while they are abroad. That’s very different from an LPA designed to continue working if the donor later loses capacity.

For most people researching “invoking Power of Attorney”, however, it is the LPA rules that matter.

What does a Lasting Power of Attorney mean?

An LPA is designed for longer-term planning. It allows you to choose someone you trust to make decisions for you if you are unable to make them yourself. That might happen because of dementia, a stroke, a serious illness, an accident or another circumstance affecting your mental capacity.

And this is worth stressing: you do not have to be elderly to need an LPA. Capacity can be lost unexpectedly.

That is one of the reasons an LPA is a planning document rather than something you should think about only when a crisis has already started. You must be at least 18 and have the necessary mental capacity when you make an LPA.

Once the LPA has been made and registered, it can sit unused until it is needed. That’s actually the point.

You are not necessarily handing control of your life to somebody else simply because you have made an LPA. While you have capacity, you remain the decision-maker for yourself. The LPA is there so that someone you have chosen can step in when the circumstances covered by the LPA arise.

The two types of LPA work differently

This is where many explanations of “invoking Power of Attorney” become confusing.

The two types of LPA have different rules.

	Property & Financial Affairs LPA	Health & Welfare LPA
What does it cover?	Money, property and financial affairs	Care, living arrangements and certain medical decisions
When can it be used?	Once registered, subject to the donor’s chosen conditions	Only when the donor lacks capacity for the relevant decision
Can it be used while the donor has capacity?	Yes, if the LPA allows it and the donor wants the attorney to help	No
Can the attorney manage bank accounts?	Yes, within their authority	No
Can the attorney deal with property?	Yes, within their authority	No
Can the attorney make care decisions?	No	Yes, where the LPA applies
Does it need to be registered before use?	Yes	Yes
What happens when the donor dies?	Attorney authority ends	Attorney authority ends

The distinction between the two is not merely technical. It changes what an attorney can do and, importantly, when they can do it.

When can you use a Property and Financial Affairs LPA?

A registered Property and Financial Affairs LPA can be used while the donor still has mental capacity if the donor has not restricted its use and wants the attorney to act.

This can be useful in everyday circumstances. Perhaps an older parent wants their daughter to help with banking. Perhaps someone is recovering from an operation and wants their partner to handle bills. Perhaps the donor travels frequently and wants someone they trust to help manage financial administration.

The LPA can provide that authority. If the donor subsequently loses mental capacity, the attorney can continue to act.

That continuity is one of the major advantages of putting an LPA in place before it is needed. It’s also why the phrase “invoke an LPA” can be slightly misleading. There’s not necessarily a moment when the LPA suddenly changes from inactive to active.

For a Property and Financial Affairs LPA, it may already be available for use. The attorney simply begins using their authority when appropriate.

When can you use a Health and Welfare LPA?

The rules are much more straightforward here. A Health and Welfare LPA can only be used when the donor lacks capacity to make the particular decision.

Until that point, the donor remains in charge of their own healthcare and welfare decisions. That includes decisions around care, living arrangements and medical treatment within the scope of the LPA.

This is an important protection of personal autonomy. Having a Health and Welfare LPA does not mean that your attorney can start making your medical decisions just because they have the document.

The donor remains the decision-maker while they have capacity. Only when they lack capacity for the relevant decision can the attorney’s authority become relevant.

What does “lacking capacity” mean?

Mental capacity is decision-specific and time-specific. Someone may be unable to make one particular decision but perfectly capable of making another.

Someone might also be unable to make a decision at one point and able to make it later. That is why it is better to think about capacity in relation to the specific decision rather than treating it as a simple label attached to a person.

The Mental Capacity Act framework is designed around supporting people to make their own decisions wherever possible. An attorney shouldn’t simply assume that someone lacks capacity because they have a diagnosis or because a decision seems difficult.

That is particularly relevant when a Health and Welfare LPA is being used.

Why does an LPA have to be registered?

This is one of the most important practical points. Making an LPA isn’t enough.

It must be registered with the Office of the Public Guardian before an attorney can use it. GOV.UK currently says registration takes around 8 to 10 weeks if there are no mistakes in the application.

That means there is a significant difference between: “We have completed the LPA.” and: “The LPA is registered and the attorney can use it.”

Families sometimes discover this distinction at exactly the wrong moment. They may have completed the forms. Everyone may have signed. The documents may be sitting safely in a drawer.

Then something happens and the family needs the attorney to act. If registration has not happened, the LPA cannot simply be treated as active.

That is why registering an LPA in advance of a crisis can make such a difference. It’s also why accuracy matters.

The OPG’s own guidance highlights issues such as incorrect details, missing pages, signatures in the wrong order and other errors that can prevent or delay registration.

What happens when the attorney actually starts acting?

Once an LPA is registered and can be used, the attorney normally has to prove their authority to the organisation they are dealing with.

That could be a bank. An investment provider. An insurer. A pension provider. A utility company. A care organisation. Or another institution that needs to know why someone is trying to act on another person’s behalf.

The organisation will usually need evidence of the LPA and the attorney’s identity.

For eligible LPAs registered in England and Wales from 1 January 2016 onwards, there is now also a GOV.UK online service that lets donors and attorneys view a one-page summary of the LPA and give organisations access to it. Older LPAs generally need the paper document or a certified copy instead.

In other situations, the attorney may use a certified copy of the registered LPA. The exact process can vary between organisations.

That is why “invoking” an LPA is partly a legal question and partly a practical one. The legal authority comes from the registered LPA. The practical challenge is getting the bank, provider or organisation to recognise that authority and update its records.

Having the authority is only half the job

There is another practical side to using an LPA that is easy to overlook. Your attorney may have perfectly valid legal authority, but that does not necessarily mean they know where to find the documents, account details and other information they need.

Imagine your daughter becomes your attorney after you have lost capacity. The LPA is registered and she can prove her authority to the bank.

But then she starts discovering that your insurance policies are in one drawer, your pension paperwork is in another, your property documents are somewhere on your laptop and nobody is quite sure where the latest copy of the LPA has been kept.

The legal authority is there. The information needed to use it is not. This is where a service such as SafeKeep can sit alongside an LPA rather neatly.

SafeKeep describes itself as a secure digital filing cabinet for important documents and information. Its platform allows users to bring documents and key information together, search for stored information and nominate trusted contacts who can have access when the time comes.

That does not replace the LPA. And this distinction is important.

The LPA gives your attorney the legal authority to act. SafeKeep can help make sure the practical information they need is organised and accessible when that authority becomes important. For example, an attorney may need to know which bank accounts exist, where a property insurance policy is held, which pension provider to contact or where other important records are stored.

Having that information organised in advance can save a family from trying to reconstruct someone’s financial life at exactly the point when they are already dealing with a difficult situation. SafeKeep also allows users to assign a Legacy Contact and says that users control when and how information is shared. Its site states that files are encrypted and that its data centres are UK-based.

We think that is a useful distinction in future planning.

An LPA answers the legal question: “Who has authority to act for me?”. A secure document system answers a different practical question: “Where is everything they need to know?”

Ideally, you want both questions answered before there is a crisis.

What can an attorney actually do?

This depends on which LPA they have. A Property and Financial Affairs attorney may be able to deal with things such as managing bank accounts, paying bills, handling investments, dealing with property, managing pensions and benefits.

GOV.UK specifically includes money, tax and bills, bank and building society accounts, property and investments, pensions and benefits among the areas a Property and Financial Affairs attorney can deal with.

The authority is not unlimited. Attorneys must act within the scope of the LPA and comply with their legal duties.

A Health and Welfare attorney may be able to make decisions about care, where the donor lives and certain medical matters, depending on the circumstances and the authority in the LPA. There is an important principle underneath all of this.

An attorney is not the owner of the donor’s money or property. They are acting on the donor’s behalf. The donor’s affairs remain the donor’s affairs.

That is why attorneys have duties around acting in the donor’s best interests, keeping appropriate records and keeping the donor’s finances separate from their own.

The role is one of responsibility, not personal entitlement.

Does invoking Power of Attorney mean losing control?

No. This is probably one of the biggest misconceptions around LPAs.

People sometimes worry that signing an LPA means their children will suddenly have access to everything.

That is not how it works. You choose who your attorneys are. You decide whether to make a Property and Financial Affairs LPA, a Health and Welfare LPA, or both. You can also decide how multiple attorneys should make decisions. You can appoint attorneys jointly, or jointly and severally, depending on what you want the arrangement to achieve.

Most importantly, while you have capacity, you continue to make your own decisions. The LPA is there to provide continuity if that changes.

Why waiting until you need the LPA can be a mistake

The biggest practical problem with an LPA is that you can’t necessarily create one at the point when you realise you need it. You must have mental capacity when you make it.

So imagine a family notices that their father is struggling with his finances. They suggest making an LPA. He agrees.

But by the time the family gets around to completing the paperwork, his capacity has deteriorated to the point where he can no longer make the LPA himself. The route has changed.

They may need to consider a Court of Protection deputyship instead. That’s why an LPA is best thought of as insurance for a future problem.

You don’t make it because you know you will lose capacity. You make it because you can’t know whether you will.

What happens if there is no LPA when someone loses capacity?

There is a widespread assumption that a spouse or adult child will automatically be able to take over.

They don’t. Being someone’s next of kin does not create a general legal authority to manage their finances. Being named as a beneficiary in a Will doesn’t create it either.

Nor does being the person who has always dealt with the household bills.

If someone lacks capacity and has not made an appropriate authority for another person to act, the family may need to apply to the Court of Protection. That can mean additional paperwork, court involvement, expense and waiting.

It also removes one important choice from the donor. They no longer get to decide who should act.

That person may instead be appointed through the court process. An LPA allows that decision to be made in advance, while the donor has capacity.

The cost of putting an LPA in place

There are three broad routes people tend to consider.

They can use the government service themselves. They can use a specialist online LPA provider for guidance and checking. Or they can instruct a solicitor.

The right choice depends on the complexity of the situation and how much help the donor wants.

For a straightforward application, there is no requirement to use a solicitor. GOV.UK confirms that an LPA can be made online or using paper forms.

The current OPG registration fee is £92 per LPA, unless a reduction or exemption applies.

At Power of Attorney Online, our current pricing is £125 for a single LPA or £250 for a pair, with the applicable Office of the Public Guardian registration fee payable separately.

Route	What you are paying for	When it may suit
GOV.UK	Official application process	People comfortable completing and checking the forms themselves
Specialist online provider	Guided application, support and document checking	People who want help without a full solicitor service
Solicitor	Legal advice and preparation	More complex circumstances where bespoke legal advice is needed

The important thing is to understand what you’re actually paying for. An online LPA is not a lesser legal document. It’s the same legal framework. The difference is the support around the process.

What our own experience tells us

One of the reasons we built Power of Attorney Online was because the paperwork can look deceptively simple while still leaving plenty of room for mistakes.

Our approach is deliberately somewhere between “download the forms and work it out yourself” and a traditional solicitor-led process. We guide people through the application, provide an expert LPA review and help with the practical steps around signing and registration.

That doesn’t mean every person needs a specialist service. Some people will be perfectly comfortable using GOV.UK. The important thing is that the completed LPA is accurate, valid and registered.

What happens if you make a mistake?

Mistakes matter because an LPA is a legal document and the Office of the Public Guardian has to be able to register it correctly.

Names need to be accurate. The right people need to sign in the correct way and order. The attorney arrangements need to reflect what you actually intend. Instructions and preferences need particular care. And the donor, attorneys, witnesses and certificate provider all have specific roles.

If an application is rejected, it may have to be corrected and resubmitted, adding more time to the process.

That is another reason not to leave the LPA until a crisis is already unfolding. The OPG’s own guidance specifically highlights checking the correct details, signatures and dates, page order, printing and corrections before submission.

How an attorney proves their authority to a bank

This is often what people really mean when they search for “how to invoke Power of Attorney”.

They’re not asking about the legal theory. They’re standing in a bank branch or looking at an online account and wondering: “What do I actually need to show them?”

The answer depends on the organisation. The attorney will normally need to provide evidence of the registered LPA and their own identification. The organisation then checks the authority and may add the attorney to its records or account mandate.

For eligible modern LPAs, the GOV.UK service can allow an organisation to view a one-page summary using an access code. For LPAs registered before 1 January 2016, the online service is not available and the paper LPA or a certified copy needs to be used instead.

But not every organisation handles an LPA in exactly the same way. That’s why keeping the registered LPA details safely accessible is sensible. If you’re an attorney, it is also worth discussing practical arrangements with the donor before there is a crisis.

Knowing which bank they use is useful. Knowing where important documents are stored is useful. Understanding their wishes is useful.

The LPA gives you legal authority. It doesn’t automatically give you all the information you need to use that authority effectively.

Can an attorney act without the donor knowing?

For a Property and Financial Affairs LPA, an attorney may be able to act while the donor still has capacity if the LPA allows it and the donor has authorised or requested their involvement.

But that doesn’t mean the attorney should secretly take control. The donor’s wishes remain central.

For a Health and Welfare LPA, the attorney can’t simply decide that the donor is incapable and start making decisions. The relevant capacity test applies to the particular decision.

The whole purpose of the system is to support the person’s autonomy wherever possible. This is why choosing attorneys carefully matters so much. Trust is more important than simply picking the person who happens to be closest geographically.

Can you have more than one attorney?

Yes. You can appoint more than one attorney. But you then need to decide how they should make decisions. This is an area where the wording of the LPA matters enormously.

If attorneys are appointed jointly, they generally have to act together. If they are appointed jointly and severally, they can generally act independently or together.

The choice can have real-world consequences. If two attorneys are appointed jointly and one dies, loses capacity or can no longer act, the whole arrangement can potentially be affected depending on the terms of the LPA.

For that reason, it is worth thinking about not just who you trust today, but whether the structure would still work if circumstances changed.

What happens when the donor dies?

The attorney’s authority ends when the donor dies. This is an important boundary. The attorney doesn’t continue managing the person’s affairs simply because they were previously authorised under an LPA.

Responsibility for the deceased person’s estate then moves to the people dealing with the estate, usually the executors named in the Will.

So an LPA is not an estate administration document. It’s a lifetime decision-making document.

That is also why it can sit alongside a Will rather than replacing one. The LPA deals with the period before death. The Will deals with the estate after death.

Frequently asked questions

Is “invoking Power of Attorney” the correct legal term?

Not really. “Invoking” is commonly used to describe an attorney starting to use their authority, but there is no separate formal LPA process called invocation. The important steps are making a valid LPA, registering it and then using it when the conditions for doing so are met.

Can I use an LPA before someone loses capacity?

A Property and Financial Affairs LPA can generally be used once registered if the donor allows it and wants the attorney to help. A Health and Welfare LPA can only be used when the donor lacks capacity for the relevant decision.

Does an LPA automatically become active when someone loses capacity?

The LPA must already be registered. For a Health and Welfare LPA, loss of capacity is what allows the attorney to make relevant decisions. A Property and Financial Affairs LPA may already be usable if it was registered and set up for use while the donor has capacity.

Does my spouse automatically have Power of Attorney?

No. Marriage does not automatically give your spouse general legal authority to manage your affairs if you lose capacity.

Can my children use my bank account if I lose capacity?

Not simply because they are your children. They need an appropriate legal authority, such as an LPA or, where no LPA exists and the person lacks capacity, potentially a deputyship order.

Does an LPA need to be registered?

Yes. An LPA must be registered before an attorney can use it.

How long does LPA registration take?

GOV.UK currently says it takes around 8 to 10 weeks if there are no mistakes, although the actual timeframe can vary.

Can I make an LPA after I lose capacity?

No. The donor must have the necessary mental capacity when making the LPA. If they have already lost the required capacity, the family may need to consider other routes, such as applying to the Court of Protection.

Can an attorney make any decision they want?

No. An attorney must act within the authority of the LPA and comply with their legal duties. They are acting for the donor, not taking ownership of the donor’s affairs.

Can I change my LPA later?

If you still have mental capacity, you can generally replace an existing LPA with a new one. GOV.UK allows a donor to cancel an LPA and make a new one if they still have the necessary capacity.

The real meaning of “invoking” an LPA

Perhaps the simplest way to understand all of this is to forget the word “invoke”. Think instead about being ready to act.

You make the LPA while you have capacity. You choose the people you trust. You decide whether you want one or both types. You register the documents.

Then life carries on. Maybe you never need your attorney to do anything. Maybe they help you with your finances while you are perfectly capable of making your own decisions. Or perhaps something unexpected happens and you suddenly cannot manage things yourself.

That is when the value of the LPA becomes obvious. Your attorney does not need to start a new legal process to become your attorney. They don’t need to persuade the court that they are the right person. They don’t need to wait for your family to agree who should take responsibility.

The authority has already been created by you. The important work was done earlier, when you were able to make the decision yourself.

That is really what a Lasting Power of Attorney means. It’s not about giving up control. It’s about keeping control over who helps you if one day you cannot make the decision yourself.

But good future planning does not stop at the legal document. Your attorney also needs to know what exists, where it is and how to find it.

An LPA provides the authority. Organising your important documents and information can make that authority much easier to use when the time comes.

That is why we see SafeKeep as complementary to an LPA rather than an alternative to it. The legal document establishes who can act. Practical organisation can help them understand what they are dealing with and find the information they need.

If you’re starting the process now, the aim should be simple: get the right LPA in place, make sure it is completed correctly and registered, choose people you genuinely trust, and make sure they can find the information they will eventually need.

That way, if the day comes when an attorney needs to step in, the legal authority is already there and the practical groundwork has been done too.