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Powers of attorney · 7 min read · Published

When does a lasting power of attorney take effect?

When a lasting power of attorney starts working: why a property and financial affairs LPA can be used while you still have capacity, and a health and welfare LPA cannot.

By Aaron Johnson, Consultant Solicitor and TEP, a solicitor in Bridlington who writes every guide himself.

This guide is general information about the law of England and Wales, not legal advice. Each case is assessed on its own merits.

Guides · Powers of attorney · No. 5 of 11Published · 7 minutes

Aaron hears one question often at kitchen tables, from Bridlington Old Town to the Wolds. It is this: once I have made my lasting power of attorney, when does it start? The answer depends on which of the two LPAs you mean. A property and financial affairs LPA and a health and welfare LPA come into effect at different moments, and that difference is the key to using them with confidence. This guide explains when each one takes effect and the part the Office of the Public Guardian plays. It also sets out the choices you control.

Before anything else: registration

Whichever LPA you mean, there is one gateway it must pass through before it can be used: registration with the Office of the Public Guardian (the OPG). An LPA that has been signed and witnessed but not registered is not a usable document. Your attorneys cannot act on it. Registration checks the paperwork is in order and gives notice to anyone you have named, but it is not the same as the LPA 'taking effect'.

Registration usually takes 8 to 10 weeks if there are no mistakes in the application, and sometimes longer. The sensible course is to register an LPA as soon as it is made, rather than waiting until it is urgently needed. A registered LPA can sit in a drawer, ready, until the day it is needed. For a property and financial affairs LPA, that day may come while you are perfectly well.

Property and financial affairs: usable while you still have capacity

This is the LPA that surprises people most. A property and financial affairs LPA, once registered, can be used while you still have full mental capacity, provided you consent to your attorney acting. It does not wait for any loss of capacity. In practice this is useful: an attorney can step in to manage banking, pay bills, deal with a property sale, or handle paperwork because it is convenient, perhaps while you are abroad, in hospital for a short stay, or finding the admin a strain.

One choice affects this. When making a property and financial affairs LPA, you decide whether your attorneys can act 'as soon as it is registered' or 'only when I do not have mental capacity'. If you choose the latter, you have delayed when it takes effect until capacity is lost. The timing is in your hands, not fixed by law.

A steaming glass cup of tea on a saucer by a window, a garden blurred beyond

Health and welfare: only when you can no longer decide

A health and welfare LPA works on a different trigger. It can only be used once you have lost the mental capacity to make the particular decision yourself. There is no option to let attorneys act early for convenience. The law reserves these personal decisions (about care, daily routine, medical treatment, where you live) for you alone, for as long as you are able to make them.

Capacity is also decision-specific and can fluctuate. Someone might be able to decide what to eat for lunch but not be able to weigh up a major medical decision. So a health and welfare LPA does not switch on all at once and forever. Your attorneys step in only for the specific decisions you cannot make at that time.

When each LPA takes effect

Property and financial affairsHealth and welfare
Can be used while you still have capacity (with your consent)Only usable once you lack capacity for the decision
Useful for convenience: banking, bills, property, paperworkCannot be used early, even for convenience
You choose: usable on registration, or only on loss of capacityNo early-use option. The law fixes the trigger
Covers money, property and financial decisionsCovers care, treatment, daily routine and where you live

Your own conditions on when attorneys act

Beyond the two built-in timing rules, you can shape an LPA with your own instructions and preferences. Instructions are binding, so your attorneys must follow them. Preferences tell your attorneys how you would like them to approach decisions, but they are not binding. Some decisions, such as selling a property, can be reserved for all your attorneys acting together. That is set by how you appoint them, not by an instruction. These are powerful tools, but they need careful wording. An instruction that is unworkable, unlawful or at odds with how your attorneys are appointed can stop the LPA being registered.

  • Joint or joint and several. You decide whether attorneys must act together on everything, or can act independently, which affects how readily the LPA can be used day to day.
  • Replacement attorneys. Naming a back-up means the LPA can still take effect if your first choice is unable or unwilling to act.
  • Your own instructions. You can spell out matters that are important to you, so your attorneys act in the way you would have wanted.
A bunch of house keys on a dark wooden table

If you never made an LPA

The alternative explains why the timing of an LPA matters so much. An LPA can only be made while you still have mental capacity. If capacity is lost first and no LPA is in place, your family cannot simply step in. They may have to apply to the Court of Protection to be appointed as a deputy. That process is usually slower, more expensive and more intrusive than having a registered LPA ready and waiting. Making and registering LPAs in good time is the calm, low-cost way to avoid it.

People often think an LPA only switches on when something goes wrong. For a property and financial affairs LPA that is not true. It can be a practical, everyday help while you are perfectly well, entirely on your terms.

Aaron Johnson, Consultant Solicitor and TEP

If you could not decide for yourself tomorrow

Life with a lasting power of attorney, and life without one.

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Local help across East Yorkshire

Weighing up your first LPA, or revisiting documents you made years ago? Getting the timing and the wording right is what makes them work. Aaron Johnson, a Consultant Solicitor and TEP (a Trust and Estate Practitioner qualified through STEP), helps families across Bridlington, Driffield, Filey, Hornsea, Beverley, Bempton, Flamborough and the wider East Riding put the right protections in place, clearly and at a fixed fee. If it is easier, he will come to you. The first conversation is unhurried and free.

Written by Aaron Johnson, Consultant Solicitor and TEP · Law of England and Wales as at 18 June 2026 · Ends

Questions

Questions people ask about this.

General answers for England and Wales. What applies to you depends on your circumstances.

Does a lasting power of attorney start as soon as it is signed?

No. Signing completes the LPA, if it is signed in the right order and properly witnessed. But it cannot be used until it has been registered with the Office of the Public Guardian. Even then, when it 'takes effect' depends on the type. A property and financial affairs LPA can be used while you still have capacity (with your consent). A health and welfare LPA can only be used once you lack capacity for the decision in question.

Can my attorney use my property and financial affairs LPA while I am still well?

Yes, in most cases. Once it is registered, a property and financial affairs LPA can be used while you still have mental capacity, provided you consent. Many people find this helpful. But you can choose, when making the LPA, to restrict it so it only becomes usable if you lose capacity. The decision is yours.

When does a health and welfare LPA come into effect?

A health and welfare LPA only takes effect once you no longer have the mental capacity to make the particular decision yourself. It cannot be used early for convenience. Because capacity is decision-specific and can change, your attorneys step in only for the decisions you cannot make at that time.

Do I have to register an LPA straight away, or wait until I need it?

You can register at any time after it is made, but it is usually wise to register straight away. Registration usually takes 8 to 10 weeks, sometimes longer, and an LPA cannot be used until it is registered. A registered LPA can sit ready until it is needed, which avoids delay at a difficult moment. Registering early also means the OPG can find any mistakes while you still have capacity. Some can then be put right. A mistake found after you have lost capacity cannot be corrected, and a deputyship may then be needed.

What happens if I lose capacity before making an LPA?

An LPA can only be made while you still have mental capacity. If capacity is lost first, it is usually too late, and your family may have to apply to the Court of Protection for a deputyship to manage your affairs. That process is usually slower and more costly than having a registered LPA in place, which is why making one in good time matters.

Next step

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Important

This guide contains general information about the law of England and Wales as at June 2026. It is not legal advice and should not be relied on in place of advice on your own circumstances. Mental capacity and powers of attorney law, and the Office of the Public Guardian's fees and forms change often; check any specific point before acting on it. Outcomes for any one person depend on their facts, the documents, and decisions taken by HMRC, the courts and others. Fees shown are fixed once agreed in writing, before any work starts. Safe Harbour Legal and Legal Studio Solicitors are trading names of MDLS Solicitors Limited (company number 08599445), authorised and regulated by the Solicitors Regulation Authority, SRA 598793. The complaints procedure is at legalstudio.co.uk/sra-complaints (Legal Studio's website).