Power of Attorney Explained: What Every Adult Child Needs to Know
Your mom just got diagnosed with early-stage Alzheimer's. Your dad had a fall and he's in the ICU. Your parent's bank account got drained by a scammer and you can't do anything about it because — legally — you're nobody. You're their child, yes. But to the hospital, the bank, the insurance company? You have no authority whatsoever.
That's the moment most people learn what power of attorney actually means. And by then, it might already be too late to get one.
Power of attorney is one of those things everyone assumes they'll deal with "later." But later has a nasty habit of arriving on the worst possible Tuesday.
What Power of Attorney Actually Is (and Isn't)
A power of attorney (POA) is a legal document where one person — the "principal" — gives another person — the "agent" or "attorney-in-fact" — the authority to act on their behalf. That's it. It's not a court order. It's not a guardianship. It's a voluntary delegation of authority from someone who currently has the capacity to make that decision.
That last part is critical. Your parent must be mentally competent when they sign a POA. If they've already lost the ability to understand what they're signing, a POA isn't an option anymore. You'd need to go through the courts for a guardianship or conservatorship — which is slower, more expensive, and a lot more invasive.
There are different types, and they matter:
- Financial POA — gives authority over bank accounts, bills, property, taxes, investments. This is what you need when your parent can't manage their money anymore.
- Healthcare POA (also called a medical power of attorney or healthcare proxy) — gives authority to make medical decisions. This is what kicks in when your parent can't speak for themselves at the hospital.
- General POA — broad authority that covers most financial and legal matters. Ends if the principal becomes incapacitated unless it's specifically "durable."
- Durable POA — this is the one you almost certainly want. "Durable" means it stays in effect even after the principal loses mental capacity. Without that word, the POA becomes useless exactly when you need it most.
A common misconception: having POA doesn't mean you control your parent. They can still make their own decisions as long as they're competent. The POA is a backup — it activates when they can't act for themselves, or when they choose to let you act on their behalf. Our guide on how to get POA covers this in detail.
Why "We'll Figure It Out When the Time Comes" Doesn't Work
Here's what happens when a parent becomes incapacitated without a POA in place: nothing. Nobody can legally make decisions for them. The bank won't let you access their account. The hospital will make medical decisions based on their own protocols. Bills pile up. The mortgage doesn't get paid. Insurance claims don't get filed.
To fix this, someone in the family has to petition the court for guardianship or conservatorship. That means hiring an attorney, filing paperwork, attending hearings, and waiting weeks or months for a judge to decide. According to the National Center for State Courts, a typical guardianship proceeding costs between $2,000 and $10,000 in legal fees alone — and that's on the low end.
Meanwhile, your parent's care isn't getting coordinated. Their bills aren't getting paid. And the family is stuck fighting a bureaucratic process during the most stressful time of their lives.
All of this is avoidable with a conversation and a few hundred dollars in legal fees right now.
The Conversation Nobody Wants to Start
I get it. Asking your parent to sign a POA feels like asking them to admit they're getting old. It feels like you're taking something from them. Most adult children put it off because they don't want to make their parent feel diminished. Our guide on siblings disagreeing about medical decisions covers this in detail.
But reframe it: you're not taking authority away. You're making sure someone they trust has their back if something goes wrong. It's the same reason people write wills — not because they expect to die tomorrow, but because they want to be prepared.
Some tips for the conversation:
- Don't spring it on them. Bring it up casually first. "Hey, I've been reading about this — have you ever thought about who'd handle things if you were in the hospital?"
- Make it about their wishes, not your convenience. "I want to make sure your preferences are followed, not whatever the hospital defaults to."
- Normalize it. "I'm getting my own paperwork in order too." (And you should.)
- Include all siblings. This is not a conversation to have one-on-one and then inform everyone else. That creates suspicion and resentment — fast.
How Siblings Fit Into This
Power of attorney can only be granted to one person per document. You can have one person hold the financial POA and a different person hold the healthcare POA — that's fine and often smart. But you can't have three siblings jointly holding the same POA without creating a logistical disaster.
This is where family dynamics get messy. Who gets chosen? The oldest? The one who lives closest? The one with a medical background? The one who's already doing most of the caregiving?
There's no universal right answer, but there are wrong ones. The sibling who's most controlling isn't the right choice. Neither is the sibling who avoids conflict at all costs. You want someone who can make hard decisions, communicate with the rest of the family, and put your parent's wishes first — even when that's uncomfortable. Our guide on guardianship vs. POA covers this in detail.
If your parent names one sibling as agent, the other siblings don't have zero role. A good family system means the POA holder keeps everyone informed, consults on major decisions, and documents everything. That doesn't happen automatically. You have to set it up.
Keep the whole family on the same page
CareSplit gives every sibling visibility into care decisions, tasks, and costs — so legal authority doesn't become a black box.
Join the iOS WaitlistWhat to Do Right Now
If your parent is still competent, you have a window. Use it. Here's the short list:
- Talk to your parent. Not about the document — about their wishes. What matters to them? Who do they trust?
- Consult an elder law attorney. Yes, you can find POA forms online. But state laws vary significantly, and a form that's not executed correctly is worthless. An attorney will cost $300-$1,000 and will make sure it's done right.
- Get both a financial and healthcare POA. They serve different purposes. You might want different people holding each one.
- Make sure it's durable. This is non-negotiable. A non-durable POA evaporates when your parent can't make decisions — which is exactly when you need it.
- Store it properly and tell people where it is. A POA locked in a safe that nobody can open is as useful as no POA at all. Give copies to the agent, the backup agent, and the family attorney.
One more thing: a POA can be revoked at any time by the principal, as long as they're still competent. It's not permanent and it's not irrevocable. That should make the conversation easier for everyone.
The hardest legal documents to get are the ones you need after it's too late to get them. Power of attorney is the single most important piece of paperwork in elder care — and the one most families don't have. Don't be that family.
Related questions
What is the difference between power of attorney and guardianship?
Power of attorney is a voluntary document your parent signs while mentally competent, designating someone to act on their behalf. Guardianship is a court-ordered arrangement imposed when a person is already incapacitated and has no POA in place. Guardianship is more expensive ($2,000-10,000+ in legal fees), takes weeks or months, and removes more autonomy from the individual.
Can you get power of attorney if a parent has dementia?
Only if the parent still has sufficient mental capacity to understand what they are signing. In early-stage dementia, many people retain enough capacity to execute a POA. Once dementia progresses to the point where the person cannot understand the nature and consequences of the document, a POA is no longer possible and the family must pursue court-ordered guardianship or conservatorship instead.
What does a durable power of attorney mean?
"Durable" means the power of attorney remains in effect even after the principal (your parent) becomes mentally incapacitated. Without the "durable" designation, the POA becomes void exactly when you need it most -- when your parent can no longer make decisions for themselves. A durable POA is the type virtually every elder law attorney recommends for aging parents.
Can siblings share power of attorney for a parent?
While a POA can technically name co-agents, most elder law attorneys advise against it because joint decision-making creates logistical delays and conflicts. A better approach is to name one sibling as financial POA and another as healthcare POA, with successor agents named in each document. The POA holder should keep all siblings informed and consult them on major decisions. For a side-by-side look at tools that help families coordinate, check our caregiving app comparison guide.