A will speaks only after you die. The documents in this article speak while you are alive and cannot speak for yourself. They appoint people to make your medical and financial decisions during illness or incapacity, and they fail most often not in their drafting but in the choice of who is named. Choosing those people well is the work.
Two people arrive at the same need from opposite ends of a life. A founder in good health wants to know who would direct her care and pay her bills if a single accident took her out of the room for a month. An adult daughter is already in the room, holding a parent who has begun to slip, unable to get a hospital to discuss treatment and unable to get a bank to move a dollar because no document names her. The instinct in both cases is to assume that a will, or a marriage, or simple family closeness settles the question. It does not. A will governs death, a marriage does not make a spouse a lawful decision-maker for every account and every doctor, and closeness is not authority a hospital or a bank is required to honor.
This article explains incapacity planning in New York — the set of documents that govern decisions made while you are alive but unable to make them yourself. It covers the health care proxy that names a medical agent, the living will that records your treatment wishes, the durable power of attorney that lets someone handle your financial and legal affairs, the MOLST form for those already seriously ill, and the HIPAA authorization that lets your agent see the records a decision requires. It is about the living documents and the people who carry them. It is not a guide to the full architecture of an estate, which our article on estate planning beyond wills sets out, and it is not the digital-asset authority addressed in our article on fiduciary access to digital assets in New York.
It is general information, not legal advice. Which documents a given person needs, and how they must be signed and witnessed to be honored, depend on the facts of that person's life, their health, their family, and the law in force, and they should be drafted with counsel rather than printed from a form. One point recurs throughout: the document is only as good as the person it names, and the most common failure in incapacity planning is not a flawed form but a well-meant appointment of someone unwilling, unavailable, or unsuited to the job.
The difference between planning for incapacity and planning for death
Most people fold all of this together under the word estate and assume one signing covers it. It does not, because two different events are being planned for. Death planning decides what happens to your property and your people after you are gone — the will, the trust, the beneficiary designations, the plan of succession. Incapacity planning decides who acts for you during the stretch of life when you are still here but cannot direct your own care or manage your own affairs. The instruments that govern the second event are the subject of this article, and the defining feature of all of them is that they operate only while you are alive and lose all force the moment you die.
That timing is the point that families most often miss. A health care proxy and a power of attorney can do nothing for you after death; an executor under a will can do nothing for you while you live. A daughter named as agent under her father's power of attorney can pay his bills the day he can no longer do it himself, but her authority ends at his death, and from that moment only the executor named in his will may act. A person who has signed a thorough will but no incapacity documents has prepared for the wrong half of the problem, and the gap shows precisely when a stroke or a fall leaves them present but unable to decide.
Incapacity planning in New York is carried by a small set of separate documents rather than one, and each carries a different kind of authority. A health care proxy and a living will reach medical decisions. A durable power of attorney reaches financial and legal decisions. A HIPAA authorization reaches the records an agent needs to act on either front. They are signed together, they are read together, and a person who has only one of them has authorized an agent for part of life and left the rest unattended. The sections that follow take each in turn, because the choice that matters most in every one of them is the same: who is named.
A person who has signed a thorough will but no incapacity documents has prepared for the wrong half of the problem.
The New York health care proxy and the living will
The health care proxy is the document that names a person to make your medical decisions when you cannot make them yourself. It is grounded in New York public health law, and its design is deliberately narrow and strong: it appoints one agent, that agent may make health care decisions for you only after a physician determines that you lack the capacity to make them, and within that window the agent generally stands in your shoes for the decisions you would otherwise make. The strength of the proxy is that it is one document naming one person with clear authority a treating physician can act on, rather than a hospital guessing among relatives. Without it, no relative holds automatic legal authority over your care simply by relation, and a hospital is left to a default order set by statute that may not reflect whom you would have chosen.
A living will is a different instrument that works alongside the proxy rather than in place of it. It is a statement of your own wishes about treatment — what kinds of life-sustaining measures you would want or refuse if you were terminally ill or permanently unconscious — written down so that the people deciding for you are deciding as you would. New York is somewhat unusual here: rather than a single dedicated living-will statute, the state recognizes advance directives of this kind through its case law, which has long honored clear and convincing evidence of a patient's own treatment wishes. That history is why the document is worth signing even though it sits on a different legal footing than the proxy, and why its instructions should be expressed with care.
The two documents do separate jobs, and they are strongest together. The proxy names the person; the living will, as an advance directive, gives that person and the treating physicians the evidence of what you would have wanted, so the agent is interpreting your stated wishes rather than improvising under pressure. An agent who holds a proxy but no written guidance is left to reconstruct your values in a hospital corridor; an advance directive with no named agent leaves a clear wish with no one plainly authorized to enforce it. Signed as a pair, the proxy supplies the authority and the living will supplies the instruction, and the person you have chosen is both authorized to act and told how.
The durable power of attorney for financial and legal matters
The power of attorney is the financial and legal counterpart to the health care proxy. It appoints a person, called your agent, to handle money and property matters — banking, bills, taxes, real estate, contracts, claims — on your behalf. The word durable is the part that makes it useful for incapacity planning: a durable power of attorney remains in force even after you lose the capacity to act for yourself, which is exactly the moment the document is needed. A power of attorney that is not durable would lapse on incapacity and leave your agent powerless when their authority matters most, so for planning purposes the durable form is the one that does the work.
New York modernized its statutory short-form power of attorney in recent years, and the changes matter to anyone signing one today. The execution requirements were simplified and brought closer to a single coherent form, the law added consequences for a third party — a bank, for instance — that unreasonably refuses to honor a properly executed power of attorney, and the document gained a clearer structure for granting authority. One feature deserves particular emphasis: the broad grant of authority does not by itself authorize your agent to make gifts of your property or to carry out other major transfers, and authority for those acts must be granted expressly in the document if you intend your agent to have it. A power of attorney signed without that express grant can leave an agent unable to do exactly the planning a family later finds it needs.
Because the power of attorney puts your financial life in another person's hands, the choice of agent and the scope you grant are decisions to make deliberately and with counsel. The agent can, while the document is in force, move money and bind you to obligations, which is precisely why the form should be matched to the trust you actually place in the person and to what you genuinely want them able to do. It is the financial half of a pair with the health care proxy: one document lets a person decide about your care, the other lets a person manage your affairs, and a complete incapacity plan in New York generally includes both, executed to current requirements and granting only the authority you mean to give.
A broad grant of authority does not by itself let your agent make gifts of your property — that power must be granted expressly.
MOLST for serious illness and the HIPAA authorization
Two further documents round out the set, each for a narrower purpose. The first is the Medical Orders for Life-Sustaining Treatment form, known as MOLST, which is not a planning document for the healthy but a set of actual medical orders for a person who is already seriously ill or near the end of life. Where a health care proxy names a decision-maker and a living will records general wishes, a MOLST form translates a seriously ill patient's wishes into specific, physician-signed orders about resuscitation, intubation, and other interventions that emergency and treating clinicians will follow. It is completed in conversation with a physician and belongs to a particular stage of illness, which is why it complements rather than replaces the proxy and the living will that a person signs earlier and while well.
The second is a HIPAA authorization, a small document with outsized practical weight. Federal privacy law restricts who may receive your protected health information, and an agent who cannot see your records cannot make an informed decision about your care or, often, get a provider to speak with them at all. A HIPAA authorization names the people permitted to receive that information, so the person you have appointed under your health care proxy can actually obtain the diagnoses, test results, and provider conversations that a real decision requires. It is easy to overlook because it grants no power to decide; it only opens access. But authority without information is hollow, and a proxy whose agent is locked out of the records is a proxy that works in name only.
These two documents show why incapacity planning is a set rather than a single signing. MOLST addresses the medical reality of serious illness; the HIPAA authorization addresses the information any agent needs to function; the proxy, the living will, and the durable power of attorney address authority over care and over affairs. Each covers a different contingency and a different stage of life, and the gaps between them are where families get stuck — an agent properly named but unable to see a chart, or a seriously ill patient with general wishes on paper but no orders the ambulance crew can follow. Drafted together and reviewed as the facts change, the documents close those gaps; drafted in isolation, they leave them open.
Choosing the people, and the mistakes that undo good documents
Every document in this article turns on one decision, and it is the choice of the person who will carry the authority. The qualities to weigh are plain but easily overlooked under the comfort of naming a spouse or an eldest child by default. The agent should be someone you trust without reservation, because the role gives real power over your care and your money. They should be available — able to be reached and present when a decision cannot wait, which a relative across the country in a different time zone may not be. They should have sound judgment under pressure and the steadiness to follow your wishes rather than their own when the two diverge. And they should be willing to serve, asked in advance rather than discovered by surprise, because a person who never agreed to the role may decline it at the worst moment.
A complete plan does not stop at one name. It names successor agents — the person who acts if your first choice cannot or will not — because the contingency the document exists to handle is precisely the kind that can disable a sole agent. It considers conflicts of interest before they arise, declining to put a person in a position where their own interests and yours could collide, and it keeps the medical and financial choices coherent even when they are different people. Naming a single agent and no successor is the most common structural flaw in these documents, and it leaves the whole plan resting on the continued availability of one person at the one moment they may not be available.
The mistakes that undo otherwise sound documents are familiar, and most are avoidable. Documents go stale — signed years ago, never revisited, naming an agent who has since died, moved, or fallen out of the person's life. Agents are named who turn out to be unwilling or unavailable when the moment comes, because no one asked them first. And do-it-yourself forms, downloaded and signed without counsel, are rejected by the banks and hospitals they are presented to because they do not meet New York's execution or content requirements. That last problem has a name worth knowing: the acceptance problem. New York institutions sometimes resist powers of attorney and proxies that are old or do not conform to the current statutory form, and an agent standing at a teller's window with a rejected document holds no more authority than a stranger. A plan drafted with counsel to current New York requirements, kept current, and built around people who have agreed to serve is the one that holds when it is finally read.
The document is only as good as the person it names, and naming a sole agent with no successor leaves the plan resting on one person at the one moment they may be unavailable.