A power of attorney lets you choose who will handle your money, property, and medical decisions if you cannot. In Missouri, the person you choose is usually called your attorney in fact (most people just say “agent”). Without one, your family may have to ask a court to appoint a guardian or conservator, which takes time, money, and court supervision.
This guide explains how Missouri powers of attorney work in plain language: the two main types, what makes one “durable,” how to sign it so banks and hospitals accept it, and the powers you must spell out in writing.
The two Missouri powers of attorney most people need
- Durable power of attorney for finances. Your agent can pay bills, manage bank and retirement accounts, deal with insurance, file taxes, and handle real estate. Missouri’s rules are in the Durable Power of Attorney Law, starting at RSMo 404.703.
- Durable power of attorney for health care. Your agent can talk to your doctors and make medical decisions you cannot make yourself. It is often paired with a health care directive (sometimes called a living will) that states your treatment wishes.
They are separate documents for a reason. The person who is best with money is not always the person you want at the hospital bedside, and you can name different people for each role.
What makes a Missouri power of attorney “durable”
A regular power of attorney stops working if you become incapacitated, which is exactly when your family needs it. A durable power of attorney keeps working. Under RSMo 404.705, a Missouri power of attorney is durable only if it:
- is titled “Durable Power of Attorney,” and
- includes a statement, in substance, that the agent’s authority will not end if you become disabled or incapacitated, or if it is later uncertain whether you are alive.
Generic internet forms from other states often miss this language. If the words are not there, a bank can refuse the document when it matters most.
How to sign a Missouri power of attorney
Missouri requires the document to be signed by you, dated, and acknowledged the same way as a real estate deed (RSMo 404.705). In practice, that means signing in front of a notary. If your agent may ever sell or refinance real estate, the notarized original may need to be recorded with the county Recorder of Deeds, so keep it safe.
The Missouri Bar’s instructions for its health care form also call for a competent adult witness who is not related to you and not named in the document, signing in front of a notary (The Missouri Bar).
Powers you must spell out in writing
A general grant of authority is not enough for some actions. Under RSMo 404.710, your agent can do the following only if your document expressly lists and authorizes them:
- create, change, fund, or revoke a trust
- make or revoke gifts of your property
- change beneficiary designations or survivorship (joint) ownership
- disclaim an inheritance
- make anatomical gifts or control your burial or cremation (the “right of sepulcher”)
- nominate a guardian or conservator
- consent to or refuse health care
- name substitute or successor agents
These are the powers that matter for funding a living trust, long-term care planning, and keeping assets out of probate. They are also the powers most often missing from do-it-yourself forms.
Some things an agent can never do. Missouri law does not let an attorney in fact make, change, or revoke your will or living will.
Missouri health care powers of attorney
Missouri’s Durable Power of Attorney for Health Care Act covers medical decision-making. A few rules surprise people:
- When it starts. Unless you expressly authorize otherwise, your agent’s authority begins when physicians certify that you are incapacitated. The statute calls for certification by two licensed physicians, one of whom can be your attending physician (RSMo 404.825). You can choose to let your agent act right away instead.
- Feeding tubes and IV fluids. Your agent can direct a provider to withhold or withdraw artificially supplied nutrition and hydration only if your document specifically grants that authority (RSMo 404.820).
- A free starting point. The Missouri Bar offers a free combined Durable Power of Attorney for Health Care and Health Care Directive form.
Who controls your funeral and cremation in Missouri
Missouri gives first priority over burial or cremation decisions to an attorney in fact named in a durable power of attorney that specifically grants the right of sepulcher. After that, the order runs to your spouse, then your children, then your parents, and so on (RSMo 194.119). If you want a particular person in charge, or you expect disagreement, put it in your power of attorney. Our guide to cremation and burial wishes explains how this fits with your will.
Choosing your agent
- Pick someone trustworthy, organized, and willing. Ask them before you name them.
- Name at least one backup (successor) agent in case your first choice cannot serve.
- Think about distance. A local agent can visit the bank or hospital; one out of state may still work well for paperwork.
- Tell your agent where the original is kept, and give copies to your doctor and financial institutions as needed.
When a free form is not enough
A free form can be fine for a simple health care plan. Attorney help is worth it when you:
- own real estate or a business, or have a living trust that needs funding
- have a blended family or expect disagreement among relatives
- may need long-term care planning, gifting, or beneficiary changes
- own property in both Missouri and Illinois, which have different signing rules (see our Illinois estate planning page)
Want this done right the first time?
Our St. Louis office prepares Missouri durable powers of attorney that include the required language and the specific powers banks and title companies look for. Every Hunsinger Law Group estate plan includes financial and health care powers of attorney, at published flat fees starting at $2,000 for one person and $3,000 for a couple.
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Frequently asked questions
Does a Missouri power of attorney have to be notarized?
Yes. Missouri requires a durable power of attorney to be signed by you, dated, and acknowledged the same way a real estate deed is acknowledged, which in practice means signing in front of a notary.
What is the difference between a durable and a regular power of attorney in Missouri?
A durable power of attorney keeps working if you become disabled or incapacitated. To be durable in Missouri, the document must be titled Durable Power of Attorney and include a statement that the agent’s authority will not end if you become disabled or incapacitated.
When does a Missouri health care power of attorney take effect?
Unless your document says otherwise, your health care agent’s authority begins when physicians certify that you are incapacitated and will stay that way while treatment decisions are needed. You can choose to let your agent act sooner.
Can my agent change my will?
No. Missouri law does not allow an attorney in fact to make, amend, or revoke your will or living will.
Is there a free Missouri health care power of attorney form?
Yes. The Missouri Bar offers a free Durable Power of Attorney for Health Care and Health Care Directive form. It is a good starting point for many people, but it does not cover your finances.
This article is general information about Illinois and Missouri law, not legal advice for your situation. Reading it does not create an attorney-client relationship. Attorney advertising.
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