Do You Need a Financial Power of Attorney?

This guide draws on estate-planning research by Shae Irving, J.D., a graduate of UC Berkeley School of Law.

Setting up a durable power of attorney for finances is worth doing if you own property, earn income, or simply want a backup plan. It matters most if you're worried that illness or injury could someday leave you unable to manage your own money.

• Why you'd want to sign one
• How it helps you avoid conservatorship or guardianship court
• Why you might think you don't need one — and why you probably still do
• When court oversight is actually the better option

Why you'd want to sign one

Signing a durable power of attorney means someone you trust — your "agent" — is ready to step in and handle the practical money matters that pile up if you become incapacitated. Bills still need paying, deposits still need making, and insurance or benefits paperwork doesn't stop just because you're unable to manage it.

Beyond the basics, there may be a house that needs repairs, investments that need attention, or even a small business that needs someone at the wheel. A durable power of attorney for finances is usually the simplest way to make sure all of that gets handled.

How it helps you avoid conservatorship or guardianship court

Without a durable power of attorney in place, your family will have to petition a judge to appoint someone to manage your finances if you lose capacity. Depending on your state, that appointed person might be called a conservator, a guardian of the estate, a committee, or a curator.

These proceedings tend to be costly and uncomfortable. Your family has to ask a court to formally declare that you can no longer handle your own affairs — turning a private struggle into a public record. In some places, notice of the hearing might even run in a local newspaper. If relatives disagree about who should take on the role, things can turn contentious fast, and legal fees only add to the strain. (For more on this, see Conservatorships and Adult Guardianships.)

Why you might think you don't need one — and why you probably still do

Maybe you're married. Maybe most of what you own sits in a living trust or is titled in joint tenancy. It's easy to assume a durable power of attorney is unnecessary in these cases — but in each one, it still spares your family real headaches if you become incapacitated.

If you're married

Marriage gives your spouse some authority over jointly owned property — paying bills from a shared account, for instance, or selling stock in a joint brokerage account. But that authority has real limits. In most states, selling co-owned real estate or vehicles requires both spouses to sign off. If you can't legally consent because you're incapacitated, your spouse is stuck.

And when it comes to property that's solely yours, your spouse has no legal standing at all without a power of attorney.

Example: Michael and Carrie, married 47 years in New York, own their home jointly but hold their stock only in Michael's name. When Michael becomes incapacitated and needs costly medical care, Carrie has no legal way to sell that stock to cover it.

Companies and institutions can also shut out a spouse who lacks the paperwork.

Example: When George's wife Elinor develops dementia and needs nursing home care, he calls her long-term care insurer for help. They refuse to speak with him — he isn't the policyholder, and he has no valid power of attorney.

In situations like these, the spouse left without authority often has to go to court and request a conservatorship or guardianship just to access the incapacitated spouse's assets — piling legal costs and emotional strain onto an already hard time.

If you have a living trust

A living trust doesn't fully replace a durable power of attorney, but it does help if you lose the ability to manage your finances. That's because your successor trustee — the person set to distribute trust property after you die — usually also has authority to manage trust assets if you become incapacitated.

The catch: that authority stops at the trust's edge. Most people only move certain assets into a trust, typically real estate and valuable securities that are expensive to probate. A durable power of attorney fills in the gaps, covering everything else and the everyday financial tasks a trust doesn't touch.

If you own property in joint tenancy

Joint tenancy lets two or more people own property together, with ownership automatically passing to the surviving owners when one dies.

But if you're incapacitated, your co-owners have limited power over your share. Take a joint bank account: if you become incapacitated, your co-owner can legally use the funds and pay your bills from that account. What they can't do is endorse checks made out to you. In practice, some people work around this by stamping checks "For Deposit Only" into the joint account, but it's an awkward fix at best.

Real estate makes the problem even clearer. If you're incapacitated, your co-owner has no legal authority to sell or refinance your share of a jointly held property. A durable power of attorney solves this directly — it lets your agent act on your behalf for jointly held assets, including real estate and bank accounts.

When court oversight is actually the better option

Most people want to avoid the cost and intrusion of a conservatorship or guardianship. But in a few specific situations, going that route makes sense.

You want court oversight of your finances

If there's genuinely no one you trust with broad control over your money and property, skip the power of attorney. A conservatorship or guardianship comes with built-in court supervision — extra cost and hassle, but also extra protection.

You worry about family conflict

A properly executed durable power of attorney carries real legal weight, and challenging it in court is an uphill fight for anyone who tries. But if you expect relatives to contest the document or make life difficult for your agent, a conservatorship or guardianship might serve you better. Family conflict may still surface, but at least a judge will be watching over your welfare and your assets.

For a closer look at how these documents work, see Durable Financial Power of Attorney: How It Works. Requirements for creating a valid power of attorney vary by state, so it's worth checking your state's specific rules or talking with a local estate planning attorney before you sign anything.