When Does an LPA Come Into Effect?
The rules are different for each type of LPA. Here is exactly when your attorneys can start acting on your behalf.
Written by James Tyrrell · Reviewed by Anthony Dalton · Last reviewed
A common misconception is that signing a Lasting Power of Attorney immediately gives your attorneys the authority to act. In reality, there are several steps that must be completed before an LPA takes effect, and the rules differ depending on whether you have a Property & Financial Affairs LPA or a Health & Welfare LPA. Understanding these distinctions is essential for both donors and attorneys.
At a glance
- An LPA must be registered with the OPG before it has any legal effect — registration costs £92 and takes 8 to 10 weeks
- A Property and Financial Affairs LPA can be used as soon as it is registered, even while the donor has full capacity
- A Health and Welfare LPA can only be used when the donor lacks mental capacity for a specific decision
- Registering your LPA does not transfer any control — you can revoke it at any time while you have capacity
Step One: Registration Is Compulsory
No LPA can be used until it has been registered with the Office of the Public Guardian (OPG). This applies to both types of LPA. Even if the document has been correctly signed and witnessed, it has no legal force until the OPG has stamped and returned it.
Registration currently costs £92 per LPA and typically takes 8 to 10 weeks. You can register an LPA at any time after it has been signed — you do not need to wait until the donor loses capacity. In fact, registering early is strongly recommended so the document is ready when it is needed.
Key point: An unregistered LPA is not a valid legal document. Banks, care homes, and hospitals will not accept it. Always register your LPA as soon as it has been signed.
Property & Financial Affairs LPA
A Property & Financial Affairs LPA can come into effect as soon as it is registered, even while the donor still has full mental capacity. This is the default position unless the donor specifies otherwise in the LPA document.
This means that once the OPG has registered the document, your attorneys could, in theory, start managing your finances straight away. Many people find this useful for practical reasons, such as:
- Asking an attorney to handle day-to-day banking while you are travelling abroad
- Delegating bill payments if you have mobility issues
- Having an attorney manage investments or property transactions on your behalf
- Allowing a trusted family member to assist with finances during a period of illness
If you prefer that your attorneys can only act once you have lost capacity, you can include a restriction in the LPA stating this. What catches people out, though, is that this can create practical difficulties — someone would then need to provide evidence that you lack capacity before the attorney could act.
Health & Welfare LPA
A Health & Welfare LPA works differently. Even after registration, it can only be used when the donor lacks the mental capacity to make a particular decision for themselves. This is set out in law and cannot be changed by the donor.
This means your health and welfare attorneys cannot override your wishes while you are able to make your own decisions. The LPA only becomes active when a medical professional or other qualified person determines that you cannot understand, retain, or weigh up the information needed to make a specific decision.
Property & Financial Affairs
Can be used as soon as it is registered (while the donor has capacity), unless the donor adds a restriction.
Health & Welfare
Can only be used once the donor lacks capacity to make a specific decision. This rule cannot be changed.
What Does "Lacking Capacity" Mean?
The Mental Capacity Act 2005 defines capacity on a decision-by-decision basis. A person lacks capacity in relation to a specific matter if they are unable to do one or more of the following:
- Understand the information relevant to the decision
- Retain that information long enough to make the decision
- Use or weigh the information as part of the decision-making process
- Communicate their decision (by any means)
Importantly, a person is not treated as lacking capacity simply because they make an unwise decision. The Act also requires that all practical steps are taken to help the person make their own decision before concluding that they cannot.
Capacity is not all-or-nothing. Someone might lack capacity to manage complex investments but still be able to decide what they want for lunch. Each decision is assessed individually.
Real-World Examples of When an LPA Takes Effect
Understanding when an LPA takes effect is easier with real-world examples:
Going Abroad for an Extended Period
You have full capacity but want your son to pay bills and manage your rental property while you are overseas. A registered Property & Financial Affairs LPA allows him to do this.
Recovering From Surgery
You are in hospital and temporarily unable to make medical decisions. Your Health & Welfare attorney can step in to make treatment decisions, but only for the period and the specific decisions where you lack capacity.
Progressive Dementia Diagnosis
As capacity gradually diminishes, your attorneys may start using the LPA for some decisions while you continue to make others yourself. The LPA adapts to your situation.
What Attorneys Must Always Do
Regardless of when the LPA comes into effect, attorneys have a legal duty to follow the principles of the Mental Capacity Act 2005. For a full overview of these responsibilities, see our guide to the duties of an attorney. This means they must:
- Always act in the donor's best interests
- Consider the donor's past and present wishes, feelings, beliefs, and values
- Take the least restrictive option available
- Consult with others involved in the donor's care where appropriate
- Keep the donor's money and property separate from their own
- Keep accurate records of all decisions and transactions made on the donor's behalf
Important: An attorney who misuses their powers can face criminal prosecution. The OPG actively investigates complaints and can revoke an attorney's authority if necessary.
Why You Should Register Your LPA Early
Registration with the OPG currently takes 8 to 10 weeks. If you wait until you actually need the LPA, it may be too late. A sudden illness, an accident, or a rapid decline in health can mean your attorneys are left unable to act during the very period when help is most needed.
The best approach is to register your LPA as soon as it has been signed. There is no disadvantage to registering early — it does not mean your attorneys will start making decisions immediately. It simply means the document is ready and legally valid when the time comes.
You should also register your LPA with your bank, building society, and any other organisations that manage your finances or care. This avoids delays later on. Many banks have their own registration process and it can take several weeks for them to add the LPA to your account. For a step-by-step walkthrough, see our guide on how to register an LPA with the OPG.
Tip: Don't wait until you need your LPA — register it now. Our service prepares your documents ready for signing and submission to the OPG. Get started here.
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Key Takeaways
- Registration first, always — no LPA can be used until the OPG has stamped and returned it, which takes 8 to 10 weeks
- Financial LPAs work immediately after registration — your attorney can help manage your finances while you still have capacity, with your consent
- Health and Welfare LPAs are capacity-dependent — they only activate when a medical professional confirms you lack capacity for a specific decision
- Capacity is decision-specific — you may lack capacity for complex financial decisions but still be able to make everyday choices
- Register early — registering your LPA with both the OPG and your bank well in advance avoids delays when the document is needed
Frequently Asked Questions
Can an LPA be used before it is registered?
No. An LPA has no legal effect until it has been registered with the Office of the Public Guardian. Banks, hospitals, and other organisations will not accept an unregistered LPA.
Can I use a Health and Welfare LPA while I still have capacity?
No. A Health and Welfare LPA can only be used when the donor lacks the mental capacity to make the specific decision in question. This rule is set by law and cannot be changed by the donor.
Does registering an LPA mean I lose control of my affairs?
No. Registering an LPA does not transfer any control. You continue to make all your own decisions while you have capacity, and you can revoke the LPA at any time.
Can I use my LPA before it is registered?
A Property and Financial Affairs LPA has limited use before registration, but most banks and organisations require it to be registered. A Health and Welfare LPA cannot be used at all until registered. Always register as soon as possible.
Does an LPA take effect automatically when I lose capacity?
For a Health and Welfare LPA, yes — it becomes usable when you lack capacity for a specific decision. For a Property and Financial Affairs LPA, it can be used from the moment it is registered if you have allowed this.
How do banks know my LPA is in effect?
Your attorney needs to present a certified copy of the registered LPA to the bank. It is best to register the LPA with your bank in advance, so they have it on file when it is needed.
This guide was last reviewed and updated on . Information is based on current legislation and OPG guidance for England and Wales.
Official Guidance
Further reading from GOV.UK
The Best Time to Act Is Now
Once mental capacity is lost, it’s too late to create an LPA. Don’t wait.
