Many couples assume that being married means they can automatically step in for each other — handle the accounts, talk to the doctors, sign what needs signing. It’s one of the most common and costly misconceptions in planning. Marriage does *not* grant automatic legal authority over a spouse’s affairs.
The joint-account myth
Yes, a joint bank account lets either spouse use that account. But plenty of things are *not* joint: a car title, a retirement account, a solely-owned home, an insurance policy, a phone or utility account in one name. If your spouse becomes incapacitated and those are in their name alone, being married doesn’t let you manage them without authority.
The healthcare gap
Spouses often have some priority in medical decision-making, but it isn’t guaranteed or unlimited, and privacy rules can still limit what a hospital shares. A healthcare Power of Attorney removes the doubt and names you clearly.
What couples actually need
The fix is simple and inexpensive compared to the alternative: each spouse signs a durable financial Power of Attorney and a healthcare Power of Attorney naming the other, with a successor agent in case you’re both unavailable. Do it while you’re both healthy — that’s the only time you can. Our guide on what happens with no Power of Attorney shows the walls families hit without it.
For the documents your state uses and how to complete them, the POA Handbook has you covered. And if a spouse has already passed, our guide for a surviving spouse walks through what changes.
_This article is plain-English education, not legal advice. Power of Attorney law varies by state, and reading it does not create an attorney–client relationship. For guidance on your specific situation, talk with a licensed attorney in your state._