GUIDE · UPDATED NOVEMBER 2026
Health Care Proxy vs. Living Will in Massachusetts
Which document is binding in Massachusetts, how each is signed, and how they work together.
Health care proxy or living will: which one do you need in Massachusetts?
In Massachusetts, the health care proxy is the document that counts. Under M.G.L. c. 201D, it names a health care agent to make medical decisions for you if you cannot make them yourself, and it is legally binding when signed with two adult witnesses. Massachusetts has no living will statute, so a living will is not legally binding on doctors here, but it still gives your agent and your care team clear evidence of your wishes. Most people in Massachusetts sign a health care proxy and many add a written statement of their wishes to guide their agent.
Key points
- A health care proxy is binding in Massachusetts; a living will is not.
- The proxy needs two adult witnesses, and your agent cannot be one of them.
- Neither document needs to be notarized.
- A written statement of wishes helps your agent decide as you would.
Side by side
| Health care proxy | Living will | |
|---|---|---|
| What it does | Names an agent to make medical decisions when you cannot | States your wishes about medical treatment |
| Legally binding in Massachusetts? | Yes, under M.G.L. c. 201D | No; it is evidence of your wishes, not binding on doctors |
| Signing | Signed with two adult witnesses; your agent cannot be a witness | No statutory requirements |
| Notarization | Not required | Not required |
| Best use | The core Massachusetts document for medical decisions | Guidance for your agent and doctors |
The Massachusetts health care proxy
Massachusetts' health care proxy law, M.G.L. c. 201D, lets any competent adult appoint a health care agent. The proxy must be signed by you, or by someone at your direction, in the presence of two adult witnesses, who also sign. The person you name as agent may not serve as a witness. The agent's authority begins only when your doctor determines that you lack the capacity to make health care decisions. See the Massachusetts Medical Society's guide to health care proxies and living wills.
The living will in Massachusetts
The Massachusetts Trial Court Law Libraries note that a personal directive or living will is not legally binding on your doctors in Massachusetts, but that it gives your care providers clear evidence of what you want. That is why many people write one anyway, and why many health care proxy forms leave room to state your wishes.
Signing a health care proxy?
We come to you, at home or in the hospital, and can arrange witnesses with advance notice.
How they work together
Think of the health care proxy as naming who decides, and the living will as telling them how you would decide. Your agent uses your written wishes, your conversations and your values to make the choices you would make. Talk with your agent about your wishes, give copies to your doctors, and keep the originals where your family can find them.
Where the power of attorney fits
Neither document covers money. A durable power of attorney names an agent for financial and legal matters. See health care proxy vs. power of attorney and Massachusetts power of attorney.
Signing at home or in the hospital
We come to homes, hospitals, rehabilitation centers and senior living communities anywhere in Boston and across Massachusetts. We can also arrange witnesses for your health care proxy with advance notice, and notarize your power of attorney or will affidavit at the same visit.
Sources
- M.G.L. c. 201D, § 2: health care proxy
- Mass. Trial Court Law Libraries: health care proxies and living wills
- Massachusetts Medical Society: health care proxies and living wills
Requirements can change. Always follow the current instructions from the Commonwealth.
Frequently asked questions
Is a living will legally binding in Massachusetts?
No. Massachusetts has no living will statute. A living will is not binding on doctors here, but it is evidence of your wishes.
Does a health care proxy need to be notarized in Massachusetts?
No. It needs two adult witnesses, and your health care agent cannot be one of them.
Do I need both a health care proxy and a living will?
The health care proxy is the essential Massachusetts document. Many people add a written statement of wishes to guide their agent.
When does a health care proxy take effect?
When your doctor determines that you lack the capacity to make health care decisions.
Can you provide witnesses for a health care proxy?
Yes, with advance notice. Let us know when you book.
Signing a health care proxy?
We come to you, at home or in the hospital, and can arrange witnesses with advance notice.
