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Missouri Estate Planning Basics
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Missouri Estate Planning Basics

Missouri estate planning basics: the will, durable power of attorney, health care directive, and living trust every adult needs, plus probate and taxes.

By Settled Editorial

Estate planning in Missouri comes down to a short set of documents that decide who inherits your property, who settles your estate, and who acts for you if you cannot act for yourself. Most adults need three: a will, a durable financial power of attorney, and a health care directive. Many people add a revocable living trust on top.

This guide is the plain-language map. It walks through each document, how Missouri probate works, the small-estate shortcut, the state tax picture, and who inherits when there is no will. Each Missouri guide linked below goes deeper on one topic.

Use this page as a planning map, not as advice for your situation. Missouri courts apply these statutes to the facts of each estate, and one signing mistake can put a document at risk. When real estate, a blended family, or a possible dispute is involved, confirm your plan with a licensed Missouri attorney before you sign.

Why a Plan Matters in Missouri

Here is what a plan does for you and your family:

  • You choose who inherits, instead of leaving it to a statute.
  • You name the person who settles your estate and the person who raises your minor children.
  • You name someone to manage your money and your medical care if you cannot.
  • You can keep your family out of a court guardianship case and shorten the work after death.

Without a plan, Missouri law fills the gaps. The intestacy statute in Chapter 474 decides who inherits. A judge may appoint a guardian or conservator under Chapter 475 to manage your care and finances during incapacity. Your family carries more cost, delay, and worry than they need to.

The Three Documents Most Missouri Adults Need

1. Last Will and Testament

A will is the anchor of most Missouri plans. It names who receives your probate property, names a personal representative (executor) to settle the estate, and names a guardian for your minor children. It can also set up a trust for a young or vulnerable heir.

Missouri keeps the signing rules short, in Chapter 474 of the Revised Statutes:

  • The maker must be at least 18, or an emancipated minor, and of sound mind (RSMo 474.310).
  • The will must be in writing, signed by the testator (or by another person at the testator's direction and in the testator's presence), and signed by two or more competent witnesses who subscribe their names in the presence of the testator (RSMo 474.320).
  • A will can be made self-proved with a notarized affidavit so the witnesses do not have to appear at probate (RSMo 474.337).
  • Missouri does not accept an unwitnessed handwritten (holographic) will, and it has no oral will.

The two-witness rule is the part that sinks homemade wills, so read the Missouri will requirements guide before you sign. A will does not avoid probate and does nothing during incapacity, which is why it works alongside the documents below.

2. Durable Financial Power of Attorney

A financial power of attorney lets a person you trust, your attorney in fact, handle money matters if you cannot. That covers banking, bills, real estate, taxes, and benefits. Without one, your family may have to ask a court to appoint a conservator, which costs time and money.

Missouri did not adopt the Uniform Power of Attorney Act. Its rules sit in the Durable Power of Attorney Law of Missouri, RSMo 404.700 to 404.735, and one point catches many people off guard:

  • A Missouri power of attorney is not durable by default. To survive your later incapacity, the document must be denominated a "Durable Power of Attorney", include the statute's durability language, and be signed, dated, and acknowledged before a notary in the manner used for real estate deeds (RSMo 404.705). A power of attorney that skips these steps is suspended while you are incapacitated, the exact moment you need it.
  • Missouri allows a springing power that takes effect on a future event, such as your incapacity (RSMo 404.714). A springing document meant to work during incapacity still has to meet the durability rules above.
  • Some strong powers work only if the document spells them out. Making or revoking gifts, changing survivorship or beneficiary designations, and creating or amending a trust each have to be expressly granted (RSMo 404.710). A general grant alone does not reach them.

3. Health Care Directive

Missouri splits the health care job across two documents, and a good plan uses both:

  • A durable power of attorney for health care names an attorney in fact to make medical decisions once you cannot. It is signed and notarized like any durable power of attorney (RSMo 404.800 to 404.865), and the agent's authority begins only after a physician certifies that you are incapacitated (RSMo 404.825).
  • A life support declaration, Missouri's living will, states in writing that death-prolonging procedures should be withheld if you reach a terminal condition and can no longer decide for yourself. It needs two witnesses at least 18 years old and no notary (RSMo 459.015), and it reaches only death-prolonging care, not comfort care or ordinary nutrition and hydration (RSMo 459.010).

One Missouri rule deserves attention. Missouri has no default surrogate law. If you never sign a health care document, no relative automatically becomes your medical decision-maker by relationship. Authority comes only from a durable power of attorney for health care you signed while competent, or from a guardian a court appoints under Chapter 475. Naming your own agent keeps the choice with you and spares your family a guardianship case. The Missouri Department of Health and Senior Services publishes a combined advance directive form under RSMo 459.016 that pairs the two documents.

Should You Add a Revocable Living Trust?

A revocable living trust holds your assets during life and passes whatever it owns at death without probate. You stay in control as trustee while you are able, and a successor trustee steps in at incapacity or death. Missouri trusts follow the Missouri Uniform Trust Code, RSMo Chapter 456.

A trust is not required, and many Missouri estates settle fine without one. It earns its cost when you own out-of-state real estate, want privacy, want smooth management if you become incapacitated, or have a blended family. Missouri also gives real estate its own probate-skipping tool: a beneficiary deed under RSMo 461.025 lets you name who receives a property at your death, recorded now and revocable while you live. The national will vs trust guide weighs the trust route against plain probate.

How Probate Works in Missouri

Probate in Missouri is the court process of proving a will, appointing a personal representative, paying debts and taxes, and distributing what is left. The Missouri Probate Code sits in Chapters 472 to 475. The shape is:

  • The personal representative named in the will (or an administrator if there is no will) applies for letters in the Probate Division of the Circuit Court in the county where the person lived, or in the City of St. Louis.
  • The court issues letters that prove the representative's authority to banks and others.
  • The estate inventories assets, pays valid creditor claims, files final tax returns, and distributes the rest to heirs or beneficiaries.

Only probate property runs through this process. Assets with a named beneficiary, a payable-on-death or transfer-on-death tag, survivorship rights, a recorded beneficiary deed, or trust ownership usually pass outside probate. The Missouri probate avoidance guide gathers each of these methods to keep assets out of probate in one place. The Missouri probate guide walks the steps and the Missouri executor duties guide covers the representative's job, including the creditor claim process and the Missouri probate timeline.

Missouri's Small-Estate Shortcut

Missouri lets a smaller estate skip full administration. A distributee can collect estate property with a small-estate affidavit when the whole estate, less liens and debts, does not exceed $40,000 and at least 30 days have passed since the death (RSMo 473.097). Larger estates near or above that line usually need a supervised or independent administration through the Probate Division.

Does Missouri Have an Estate or Inheritance Tax?

Here is the good news. Missouri has no state estate tax, no inheritance tax, and no probate tax on the value of the estate. Missouri repealed its estate tax for deaths on or after January 1, 2005, when the federal credit it was tied to went away (RSMo 145.011), and no beneficiary owes a Missouri inheritance tax.

A few taxes can still touch an estate:

  • The person who died may owe a final Missouri and federal income tax return, and estate income during administration can call for a fiduciary return (Missouri Form MO-1041 and federal Form 1041).
  • Federal estate tax reaches only very large estates. The federal exclusion is $15 million per person for deaths in 2026, per the IRS, so almost every estate owes nothing.

The costs of opening a Missouri estate are court costs, publication, and recording fees, not a tax on the estate's value.

Who Inherits If You Have No Will

If you die without a valid will, Missouri's intestacy statute decides who inherits your probate property. The main rules in RSMo 474.010 work like this:

  • If you leave a spouse and no descendants, your spouse inherits everything.
  • If you leave a spouse and descendants who are all also the spouse's, your spouse takes the first $20,000 plus half of the balance, and your descendants split the rest.
  • If any descendant is not also your spouse's child, your spouse takes half and your descendants take the other half, with no $20,000 preferential amount.
  • With no spouse, the estate passes to your descendants, then, as one class, to your parents and siblings and their descendants, and outward to more distant kin.

Missouri groups your parents and siblings into a single class rather than separate tiers, which surprises many families. Stepchildren do not inherit unless adopted, and unmarried partners inherit nothing under intestacy. A will or trust replaces these defaults with your own choices. The Missouri intestate succession guide shows how each family situation plays out.

How These Documents Work Together

Each document covers a different moment, and they act as a set:

  • The durable power of attorney and the health care documents protect you while you are alive but unable to act.
  • The will and any revocable living trust direct your property after death.
  • A guardian named in your will protects your minor children, and planning ahead with the incapacity documents can keep you out of an adult guardianship case under Chapter 475.

Beneficiary designations on life insurance, retirement accounts, and bank accounts sit beside all of this. They pass outside your will, so review them after every marriage, divorce, birth, or death. Outdated beneficiaries are one of the most common ways a careful plan goes wrong.

Getting Started

You do not have to do it all at once. A sensible order looks like this:

  1. List what you own and roughly what it is worth.
  2. Decide who should inherit, who should settle your estate, who should raise your children, and who should be your financial and medical agents.
  3. Sign the documents: a will, a durable financial power of attorney, and the health care directive, meaning both the durable power of attorney for health care and a life support declaration.
  4. Check the beneficiary designations on your accounts and insurance.
  5. Tell your personal representative and agents where the documents are.
  6. Review the plan every few years and after any major life change.

For the wider picture across states, the national estate planning overview shows how these pieces connect. For the local court path, start at the Missouri probate guide or the Missouri county probate directory.

The Bottom Line

Most Missouri adults need three documents: a will, a durable financial power of attorney, and a health care directive, with a life support declaration alongside it. Add a revocable living trust when your situation calls for one, and use a beneficiary deed to pass real estate outside probate. Missouri runs probate through the Probate Division of the Circuit Court, offers a $40,000 small-estate shortcut, and charges no state estate, inheritance, or probate tax. Sign the documents while you are healthy, keep your beneficiaries current, and revisit the plan as life changes.

This guide is general information about Missouri estate planning, not advice for your situation. Confirm anything that affects your estate with a licensed Missouri attorney or the Probate Division of your circuit court before you sign or rely on a document.

Sources:

It is not legal advice.

Prefer to talk it through? Connect with an estate-planning attorney

Settled Estate is not a law firm and does not give legal advice.

Information current as of July 17, 2026

Settled Estate is not a law firm, and this content is for informational purposes only and does not constitute legal advice. Probate laws and procedures in Missouri can change. Consult with a qualified attorney for advice specific to your situation. Full disclaimer.

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