What is a living will advance health care directive?

A short note before you start

This guide is general information for the United States, not legal, tax, financial or medical advice. Every state sets its own rules for what a living will and advance health care directive must say, who can witness or notarize it, and how it takes effect. Use your state's own form when you can, free through CaringInfo, and confirm anything specific to your situation with your state court's self-help pages or an attorney.

What is a living will advance health care directive?

An advance health care directive is the broad legal term for the documents that let you set your medical care wishes and name a decision-maker in case you cannot speak for yourself. It has two main parts, named differently by different states:

• A living will. A written statement of which treatments you want, do not want, or want stopped, under specific conditions such as a terminal illness or permanent unconsciousness. It does not name a person; it records your instructions directly.
• A durable power of attorney for health care (health care proxy). Names a specific person, your health care agent, to make medical decisions for you when you cannot. The National Institute on Aging describes this person as someone who "can make health care decisions for you if you are unable to communicate these yourself"¹.

Some states issue a single combined form; others keep the two documents separate. Having both a written statement of your wishes and a named person to interpret them in unanticipated situations gives doctors and family the clearest picture³.

Advance directive meaning, in plain terms

"Advance directive" means a decision made in advance, while you are legally competent, about health care you may need later. It only takes legal effect in a future moment when you cannot make or communicate that decision yourself. Signing one does not give up any current rights: as long as you can communicate your wishes, your own voice controls, not the document and not your named agent.

How a living will is different from a POLST

A living will is a planning document you fill out on your own, meant for anyone thinking ahead. A POLST (called MOLST or POST in some states) is a medical order, signed by a provider, for people who are already seriously ill or frail. CaringInfo explains that POLST forms "turn treatment preferences into medical orders" that emergency responders must follow on the spot³. Most adults only need an advance directive; a POLST is added later, with a doctor⁷.

When does a living will advance health care directive take effect?

Not right away, and not automatically. Two conditions generally have to be met:

1. You must be unable to make or communicate your own health care decisions.
2. A physician, often the attending physician plus a second, independent physician depending on the state, must examine you and document that finding in your medical record.

Until both happen, your own decisions control, no matter what the document says. A signed advance directive does not hand over decision-making the moment it is signed; it sits ready and only activates once a doctor determines you cannot speak for yourself (state law varies; see CaringInfo's by-state forms for your state's specific trigger language, checked 2026-09-18).

What to put in a living will

Most living wills ask you to state your wishes about life-sustaining treatments, usually under two scenarios: a terminal condition and permanent unconsciousness. The National Institute on Aging lists the treatments most forms cover:

• CPR (cardiopulmonary resuscitation). Attempts to restart your heart and breathing if they stop.
• Mechanical ventilation. A machine that breathes for you if you cannot breathe on your own.
• Artificial nutrition and hydration. Fluids and nutrients delivered by IV or feeding tube if you cannot eat or drink.
• Dialysis. Filters waste from your blood if your kidneys stop working.
• Antibiotics or antivirals for infections during a critical illness.
• Comfort care (palliative care). Pain relief and comfort measures, which most people want continued regardless of their other choices.

¹ You can accept, decline, or set conditions on any of these, and add personal instructions, such as where you would rather be cared for, or organ donation wishes, usually handled through a separate state registry.

Steps to create a living will advance health care directive

1. Get your state's form. Start with your state's official or statutory form. CaringInfo provides a free, current form for every state and Washington, D.C.³.
2. Think through the scenarios, ideally with your doctor. Many people first have this conversation at a Medicare wellness visit, covered at no cost when billed with that visit⁹.
3. Choose and ask your health care agent. Pick someone willing to advocate for your wishes under pressure, confirm they are willing to serve, and name a backup.
4. Fill out the form completely. Be specific about the treatments above; vague language leaves more room for family disagreement later.
5. Sign in front of the right witnesses, or a notary. Most states require two witnesses; some require notarization instead of, or in addition to, witnesses, and exact signing requirements are set state by state¹⁰,¹⁴. Many states bar your agent, your doctor, or anyone who stands to inherit from serving as a witness.
6. Give copies to your agent, backup, doctor and close family, and file it with your hospital's medical record system. Covered hospitals must document that they have it on file (42 CFR 489.102, checked 2026-09-18). Keep the original somewhere findable, not only in a safe deposit box.
7. Revisit it periodically. Update it after a major diagnosis, a divorce, or the death of a named agent, and re-sign with new witnesses if your state requires that for an update to be valid.

Advance directive vs. living will vs. health care proxy: at a glance

Do I need a lawyer, and does it cost anything?

No. A living will and health care proxy do not require a lawyer in any state. State-specific forms are free from CaringInfo, and many hospitals and doctors' offices hand them out at no charge. A widely used alternative, Five Wishes, costs $5 for a paper copy and meets legal requirements in 46 states and Washington, D.C.; the remaining four states (Kansas, New Hampshire, Ohio and Texas) require pairing it with a state statutory form¹¹. An attorney is optional, mainly useful for complicated situations such as blended families or an estate plan you want the directive to align with.

State variation

There is no single national form or set of rules. Each state's statute sets the required language, the number and qualifications of witnesses, whether notarization is required, what triggers the document, and how an out-of-state directive is honored. Most states honor a validly executed directive from another state, but the safest approach if you split time between states, or move, is to sign a new form for your current state. Use CaringInfo's by-state directory or your state court's self-help site to get the correct form³.

What to record in a family guide

An advance directive only helps if the people who need it can find it during a crisis, often within hours. Beyond keeping the signed original secure, record in a family guide, such as the one Omliva helps families build:

• Where the signed original and copies are kept
• The name, phone number and relationship of your health care agent and backup agent
• Your primary doctor's name and contact information, and whether the directive is on file with them
• Whether you also have a POLST, and where it is kept
• Any state advance directive registry you are enrolled in
• Organ donation wishes and where they are registered

This is the same kind of location-and-contact information that belongs alongside a letter of instruction and the documents covered in how to organize important documents for family, so whoever is called in an emergency is not searching a filing cabinet while also deciding.

Common mistakes

• Assuming it takes effect immediately. It only applies once a physician documents that you cannot decide for yourself.
• Never telling the named agent. An agent who does not know they were chosen, or has not discussed your wishes, is left guessing at the worst possible moment.
• Using a generic, non-state form. Witness and notarization requirements are state-specific; a mismatched form can be challenged when it matters most.
• Filing it away and forgetting it. If your doctor, hospital and agent do not have current copies, it may not surface in time to matter.
• Confusing it with a will. A living will covers medical treatment while alive; it has no authority over property or money and says nothing about what happens after death. See the executor checklist for that.
• Naming an agent without a backup. If your first choice is unavailable, unwilling, or predeceases you, no one may be left legally authorized to decide.

When to get professional help

Most people can complete a living will and health care proxy on their own using a free state form and two willing witnesses. Talk to an elder law attorney for a complex family situation, a directive coordinated with a trust or estate plan, an expected family dispute, or uncertainty about your state's rules. Talk to your doctor, not a lawyer, about which specific treatments make sense for your health history; the form only records the decision once you have made it.