LPA vs OPA - which power of attorney do you actually need?

If you've started looking into power of attorney, you've probably come across a confusing alphabet soup of abbreviations: LPA, OPA and various other legal terms that might leave you scratching your head. Don't worry – you're definitely not alone in feeling bewildered by all the acronyms.

Understanding the differences between these types of power of attorney isn't just academic – it could make a real difference to how well you and your family are protected in the future. Get it right now, and you'll have peace of mind knowing you're covered whatever happens. Get it wrong, and you might find yourself in a situation where the power of attorney you thought would help simply doesn't work when you need it most.

The good news is that once you understand what each type actually does, the choice becomes much clearer. Let's break it down in plain English so you can make the right decision for your situation.

The basics: what each type actually covers

Let's start with the most comprehensive option: Lasting Powers of Attorney or LPAs. There are actually two different types of LPA, and they cover completely different areas of your life.

An LPA for Property and Financial Affairs gives your chosen attorney the power to make decisions about your money and property. This might sound straightforward, but it actually covers a huge range of possibilities. Your attorney could pay your bills, manage your bank accounts, deal with your benefits, handle your tax affairs or even sell your house if necessary. According to Age UK, this type of LPA can be used as soon as it's registered, even while you still have full mental capacity – which can be incredibly useful if you're going into hospital or travelling abroad.

An LPA for Health and Welfare is quite different. This only comes into effect when you can no longer make decisions for yourself about your care and medical treatment. When that time comes, your attorney can make decisions about where you live, what care you receive, whether you have medical treatment and even life-sustaining treatment decisions. The NHS website explains that this type of LPA is crucial for anyone who wants to ensure their care preferences are respected if they develop conditions like dementia.

Then there's the Ordinary Power of Attorney (OPA). This is much more limited – it only covers financial matters, and here's the crucial bit: it becomes invalid as soon as you lose mental capacity. An OPA is designed for temporary situations where you have full mental capacity but can't handle your affairs for practical reasons – perhaps you're travelling abroad for an extended period or you're in hospital recovering from surgery.

When mental capacity matters

This is where the differences between these types of power of attorney become really important, especially if you're thinking ahead about conditions like dementia.

Mental capacity, as defined by the Mental Capacity Act, is your ability to make specific decisions at the time they need to be made. The key word here is "specific" – you might be able to decide what to have for lunch but not be able to understand a complex financial decision.

LPAs are specifically designed to continue working even when you lose mental capacity. That's the whole point of them – they're your way of making sure someone you trust can step in and make decisions when you can't. Whether it's managing your finances or making decisions about your care, your LPA attorney can act on your behalf.

An OPA, however, becomes completely useless the moment you lose capacity to make decisions. If you have an OPA and then develop dementia, your attorney can no longer use it. Your family would need to apply to the Court of Protection to become your deputy, which is a lengthy, expensive and stressful process that could have been avoided with an LPA.

Real-life scenarios: which would you need?

Let's look at some example situations to make this clearer.

Sarah's story illustrates why many people need both types of LPA. Sarah is 72 and has been diagnosed with early-stage Alzheimer's disease. She's still managing well at home, but she's worried about the future. She wants her daughter Emma to be able to help with her finances now – paying bills when Sarah's feeling confused or overwhelmed. She also wants Emma to be able to make care decisions later if the Alzheimer's progresses. Sarah needs both an LPA for Property and Financial Affairs (which Emma can use now) and an LPA for Health and Welfare (for future care decisions).

Tom's situation shows when an OPA might seem tempting, but probably isn't the right choice. Tom is 68 and going into hospital for major surgery. He'll be recovering for several months and wants his son to manage his finances during this time. An OPA would work while Tom recovers, but what if complications arise? What if Tom has a stroke during surgery and loses capacity? Suddenly the OPA becomes invalid just when his son needs it most. Tom would be much better protected with an LPA for Property and Financial Affairs.

The harsh reality is that none of us can predict when we might lose capacity, whether temporarily or permanently. Alzheimer's Research UK points out that dementia affects over 944,000 people in the UK, and the numbers are rising. Even if dementia never affects you, accidents, strokes or serious illnesses can impact anyone's mental capacity without warning.

The cost question

Cost is often a major factor in people's decisions, so let's be upfront about what you'll pay.

Currently, registering an LPA costs £82 per document. If you want both types of LPA – Property and Financial Affairs plus Health and Welfare – you'll pay £164 in total. An OPA doesn't require registration, so there's no government fee, but remember the significant limitations we've discussed.

However, you might qualify for reduced fees or even complete exemptions. If you receive certain benefits like Income Support, income-based Jobseeker's Allowance or Pension Credit, you can get a 50% reduction, paying just £41 per LPA. If you receive Universal Credit or have a very low income, you might pay nothing at all. The Office of the Public Guardian can advise on fee reductions and exemptions.

When you consider that applying to the Court of Protection to become someone's deputy (which might be necessary if you only have an OPA and lose capacity) can cost over £800 plus ongoing annual fees, LPAs represent excellent value for money.

Making the right choice for your situation

For most people, the choice is clear: LPAs provide much better protection than an OPA. The temporary nature and capacity limitations of OPAs make them unsuitable for long-term planning, especially when you're thinking about progressive conditions like dementia.

Here's a simple way to think about it: if you're creating a power of attorney because you're worried about what might happen in the future, you need LPAs. If you just need someone to handle your affairs temporarily while you're fully mentally capable but physically unable to do so, an OPA might suffice – but even then, an LPA would give you better protection.

Most people benefit from having both types of LPA. The Property and Financial Affairs LPA can be used immediately to help with day-to-day money management, while the Health and Welfare LPA provides crucial protection for future care decisions.

If you're unsure about your specific situation, it's worth getting advice. Citizens Advice provides free guidance on power of attorney options, and your local office can help you understand what's right for your circumstances.

Getting started

The reality is that most people who are thinking seriously about power of attorney need LPAs rather than an OPA. The comprehensive protection, the ability to continue working if you lose capacity and the relatively modest cost make LPAs the sensible choice for long-term planning.

If you're ready to start the process, our guide to creating your power of attorney walks you through the steps involved. You'll find everything you need to know about choosing your attorney, filling out the forms and getting everything registered.

Don't put this off because you're worried about making the wrong choice. For most people, having LPAs in place – even if you never need to use them – is far better than finding yourself without the right legal protection when you need it most. It's better to have them and not need them than to need them and not have them.