Medical power of attorney in Wisconsin: how it works, how to sign
The short answer
In Wisconsin, a power of attorney for health care names a health care agent to make medical decisions when you can't. You sign it before two adult witnesses who aren't relatives. Wisconsin has no general law letting family decide without one, so families often need a court guardianship.
The question under every medical power of attorney is a simple one. If you can't speak for yourself, who talks to the doctor?
In Wisconsin, that question matters more than in most places, because the state has no general family default list. This page explains what the document is called, how to sign it, how the living will fits in, and what happens if you name nobody. It is part of our state guides to estate planning. For the basics of the role, see what a medical power of attorney is.
What is the document called in Wisconsin?
Wisconsin calls it a "power of attorney for health care." The person you name is your "health care agent" (Wis. Stat. 155.05).
You can also name an alternate agent, who serves if your first choice is unable or unwilling. That is worth doing. Our post on having a backup in every role explains why.
One limit to know: your own doctor, nurse or care facility staff (or their spouses) can't be your agent unless they are related to you.
How do I sign one in Wisconsin?
The document must be in writing, dated, and signed by you. Another adult may sign for you at your express direction and in your presence (Wis. Stat. 155.10).
You sign in front of two adult witnesses. No notary is needed.
Remote witnessing over live video is allowed only under strict conditions, including a supervising Wisconsin lawyer and everyone physically in Wisconsin. For most people, two neighbors at the kitchen table is simpler.
This is different from Wisconsin's financial power of attorney, which needs only your signature (though a notary is wise). Our Wisconsin power of attorney guide covers that document.
Who can't be my witness?
Wisconsin rules out more people than many states do (Wis. Stat. 155.10).
| Person | Can be a witness? |
|---|---|
| Your health care agent | No |
| A relative by blood, marriage or adoption, or a registered domestic partner | No |
| Anyone who knows they would inherit from you or is owed part of your estate | No |
| Anyone directly paying for your health care | No |
| Your health care provider, or an employee of the provider or of a hospital or facility where you are a patient | No (chaplains and social workers are allowed) |
| A friend or neighbor who is none of the above | Yes |
| Anyone under 18 | No |
The easy path: ask two friends or neighbors who aren't related to you and aren't in your will.
When does my agent's authority start?
Later than many people expect. Unless your document says otherwise, it takes effect only after two physicians, or a physician and an advanced practice clinician, personally examine you and sign a statement that you have incapacity (Wis. Stat. 155.05).
Old age, eccentricity or physical disability is not enough on its own. And while you still have capacity, your own wishes always win over the document.
Your agent is a fiduciary: legally required to act in your interest and follow what you wrote. In daily terms, that means talking with your doctors, reading your chart, and saying yes or no to a test or treatment in light of your wishes.
Is there an official form?
Yes. The Department of Health Services publishes Wisconsin's power of attorney for health care form. Any printed form sold for use without a lawyer must carry the notice the statute sets out (Wis. Stat. 155.30).
Do I need a living will too?
Many people sign both. A power of attorney for health care names a person. A living will writes down a narrow set of wishes.
Wisconsin's living will is called a "Declaration to Health Care Professionals (Wisconsin Living Will)" (Wis. Stat. 154.03). It covers only withholding or withdrawing life-sustaining procedures or feeding tubes, and only if you are in a terminal condition or a persistent vegetative state.
It is also signed before two witnesses, no notary, with a similar list of people ruled out. The Department of Health Services provides the form.
Because the living will is so narrow, the power of attorney for health care does most of the work. Our post on health care power of attorney vs living will explains how the two fit, and treatment preferences helps you think through what to tell your agent.
Who decides if I haven't named anyone?
Here Wisconsin is different from most states. Most states have a law that lists which relatives can make medical decisions for you if you haven't named anyone, usually starting with a spouse. Wisconsin has no general law like that.
Neither the health care power of attorney law nor the living will law sets up a family list for ordinary medical decisions (Wis. Stat. ch. 155, ch. 154). Without a health care agent, the usual route is a court guardianship.
There is one narrow exception. If an incapacitated adult with no agent and no guardian is being discharged straight from a hospital to a nursing home or similar facility, a relative or friend can consent to that admission (Wis. Stat. 50.06). The order is:
| Order | Who can consent to the facility admission |
|---|---|
| 1 | Spouse or registered domestic partner |
| 2 | Adult child |
| 3 | Parent |
| 4 | Adult brother or sister |
| 5 | Grandparent |
| 6 | Adult grandchild |
| 7 | Adult close friend |
Two physicians, or a physician and an advanced practice clinician, must find the person incapacitated, and the person must not object. A 2025 law lets this representative sign a sworn declaration on a state form and send it to the hospital, the facility, the county adult-at-risk agency, reachable family and the register in probate. They can then consent to the admission and make decisions about care at that facility without filing for guardianship.
So yes, a close friend appears on Wisconsin's list, but last, and only for this one situation. For a surgery, a new treatment or a hard choice in the ICU, the list doesn't apply.
That makes naming a health care agent unusually important here. Our page on who decides for me walks through the general picture, and the 50-state guide to default decision-makers compares other states. Our post on guardianship vs power of attorney explains what the court route involves.
Here is a typical case, a composite. Ruth is 73, widowed, and lives in Green Bay. Her son is in Colorado. Her neighbor Diane drives her to appointments and knows exactly what Ruth would want. Ruth names Diane as her health care agent and her son as alternate, and two friends from church witness the signing.
How do I choose my agent?
Once the signing is done, the practical questions matter most. Is the person willing? Can they get to the hospital? Will they follow your wishes even when they would choose differently?
A short checklist:
- They know what you want, because you have told them.
- They can stay calm in a hospital hallway and ask questions.
- They live close enough, or can travel when needed.
- You have named an alternate in case they can't.
Our post on how to choose a medical power of attorney has more questions to ask.
Some people would like a professional standing by, first or behind a friend. A Kinly membership includes a medical power of attorney written for your state, and Trella Trust Company can be named in the role, first or as the backup to someone you choose.
When your health papers are done, our Wisconsin probate guide covers what happens to your home and savings later.
Common questions
Does a medical power of attorney need to be notarized in Wisconsin?
No. Wisconsin requires two adult witnesses instead. They can't be related to you, can't be your agent, and can't be in line to inherit from you.
Can a family member witness my Wisconsin power of attorney for health care?
No. A relative by blood, marriage or adoption, or a registered domestic partner, can't witness it. Ask two friends or neighbors instead.
Who makes medical decisions in Wisconsin if there is no power of attorney?
Wisconsin has no general law naming a family decision-maker. Families usually need a court guardianship. The only statutory family list covers consent to an admission from a hospital to a nursing home or similar facility.
When does a Wisconsin health care agent start making decisions?
Unless the document says otherwise, only after two physicians, or a physician and an advanced practice clinician, examine you and certify in writing that you have incapacity.
Can a close friend make medical decisions for me in Wisconsin?
Yes, if you name the friend as your health care agent. Without that document, a close friend ranks last on Wisconsin's list, and that list covers only a facility admission.
Sources
- Wis. Stat. 155.05: Power of attorney for health care (Wisconsin Legislature)
- Wis. Stat. 155.10: Execution and witnesses (Wisconsin Legislature)
- Wis. Stat. 155.30: Power of attorney for health care form (Wisconsin Legislature)
- Wis. Stat. 154.03: Declaration to health care professionals (Wisconsin Legislature)
- Wis. Stat. 50.06: Certain admissions to facilities (Wisconsin Legislature)
- Wis. Stat. chapter 155: Power of attorney for health care (Wisconsin Legislature)
- Wis. Stat. chapter 154: Advance directives (Wisconsin Legislature)
This page is general information, not legal or financial advice. Laws vary by state.