Guide
Do I need a Lasting Power of Attorney if I already have a will?
Yes. A will only takes effect after you die. A Lasting Power of Attorney (LPA) is the document that lets someone you trust manage your money or health decisions if you lose the ability to do it yourself while you are still alive. They do different jobs, so most people need both.
Last reviewed 20 October 2026. General information, not legal advice. All guides
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What each document does
- A will says who gets your property after you die and who looks after your estate. It has no effect while you are alive.
- A Lasting Power of Attorney lets you choose people (your attorneys) to act for you if you lose mental capacity, for example through dementia, a stroke or an accident. It stops when you die.
What happens without an LPA
Many people assume a spouse or adult child can step in automatically. In England and Wales they cannot. Without an LPA, the family may have to apply to the Court of Protection for permission to manage your affairs. That can take many months and cost more, and the court stays involved afterwards. In the meantime, bills may be hard to pay and property may be hard to sell.
The two types of LPA
- Property and financial affairs. Covers things such as paying bills, managing bank accounts and investments, and selling a home. You can choose to let your attorney use it while you still have capacity.
- Health and welfare. Covers decisions about care, where you live and, if you say so, medical treatment. It can only be used when you can no longer make those decisions yourself.
You can make one or both. Most of our clients choose both, because the two types cover different decisions.
When to make one
An LPA can only be made while you still have the mental capacity to understand it. Once capacity is lost, it is too late. That is why it is best to do it while you are well. We can prepare your will and LPAs together, with the registration handled for you. See our Lasting Power of Attorney page.
Quick answers
Common questions
Can my spouse automatically make decisions for me?
No. Without a registered LPA, a spouse has no automatic legal authority to manage your affairs or make health decisions for you, although doctors will usually consult them.
Does an LPA replace a will?
No. An LPA ends when you die. A will is what directs your estate after your death.
Can I change my LPA later?
Yes. While you have mental capacity you can cancel or replace an LPA.
Keep reading
Related guides
How much does a Lasting Power of Attorney cost?
With Jackson Giles an LPA costs £360 each, or £720 for both the property and financial affairs LPA and the health and welfare LPA.
How long does it take to register a Lasting Power of Attorney?
Government guidance says it takes 8 to 10 weeks to register a Lasting Power of Attorney if there are no mistakes in the application.
How do you choose attorneys and executors?
Choose people you trust who are sensible with money, willing to act, and likely to outlive you, and always name replacements.
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