Estate Planning in Missouri

Married with children (same marriage)

Your spouse receives the first $20,000 of the intestate estate plus one-half of the remaining balance. Your children split the rest equally by representation.

Married with children from a prior relationship

Your spouse receives one-half of the intestate estate — no $20,000 preferential share. Your children from the prior relationship split the other half.

Married, no children

Your spouse inherits the entire intestate estate.

Single with children

Your children inherit everything equally by representation.

Single, no children

Your father, mother, brothers, and sisters inherit in equal parts. Parents are treated as the same degree as siblings. If no parents or siblings survive, the estate passes to their descendants, then to grandparents, then to more remote kin. If no relative survives, the estate escheats to the state — but Missouri's intestacy statute is designed to reach very distant relatives before escheat.

What makes a will valid

A will must be in writing, signed by the testator (or by another person at the testator's direction in the testator's presence), and attested by two or more competent witnesses subscribing their names in the presence of the testator. No attestation clause is required. A holographic will entirely in the testator's handwriting and signed is also valid without witnesses.

What people think

That a holographic will is easy and reliable, or that the $20,000 preferential share provides meaningful protection for the surviving spouse.

What actually happens

Holographic wills are valid but can be difficult to prove at probate — authenticity of the handwriting must be established. And the $20,000 preferential share, unchanged since 1996, provides minimal financial protection in today's economy. A properly witnessed and self-proved will combined with appropriate beneficiary designations is almost always the better approach.

Common failure

Not filing the will for probate within one year of death. Missouri requires timely probate filing — after one year, the will may be barred and the estate distributed under intestacy rules instead.

When a trust is better

When avoiding probate for real property, when managing the fraud of marital rights doctrine, when privacy matters, when the estate involves property in multiple states, or when structuring distributions for minor children.

Execution checklist

1. Sign the will with two competent witnesses present — both must sign in the testator's presence
2. Execute a self-proving affidavit before a notary
3. Use disinterested witnesses to avoid any bequest reduction
4. If using a holographic will, write the entire document in your own handwriting and sign it
5. Ensure the will is filed for probate within one year of death

What it does

Grants authority to a named agent to manage financial, legal, and property affairs on your behalf.

Key rule

Missouri recognizes durable powers of attorney under Chapter 404. The document must include explicit durability language. Notarization is required for recording and strongly recommended for third-party acceptance.

Real-world friction

Financial institutions may reject POAs they consider outdated or non-standard. Using the Missouri statutory form and keeping the document recently executed reduces rejection risk.

Common mistake

Confusing the financial POA with the health care directive. They are separate documents under separate statutes with entirely different legal authority.

What it covers

Your preferences for life-sustaining treatment and the designation of a healthcare agent authorized to make medical decisions if you become unable to do so.

What's different

Missouri's Health Care Directives Act allows a combined document that includes both the living will (treatment instructions) and the healthcare power of attorney (agent designation). Missouri also has specific protections for withdrawal of artificially supplied nutrition and hydration — different standards may apply.

Execution requirements

Must be signed by the declarant and witnessed by two competent adults. The healthcare agent should not serve as a witness. Notarization is recommended.

Common misunderstanding

Assuming a living will alone is sufficient. Without a designated healthcare agent, the living will provides instructions but no one has clear legal authority to enforce those preferences. Combining a living will with a healthcare POA is the recommended approach.

When required

When assets are held solely in the decedent's name without a beneficiary designation, survivorship rights, or trust. Must be filed within one year of death.

What makes Missouri different

Missouri probate is administered through the Probate Division of the Circuit Court, and the one-year filing deadline is stricter than most states. The will must be admitted to probate within one year of death or it may be barred. Missouri's fraud of marital rights doctrine gives surviving spouses an aggressive tool to challenge lifetime transfers — real property transfers are presumed fraudulent unless the spouse consented. This means probate in Missouri often involves more spousal rights analysis than in states without this presumption.

Probate paths

What people get wrong

Missing the one-year probate filing deadline. Missouri requires the will to be admitted to probate within one year of death. After this deadline, the will may be barred — even if it's perfectly valid — and the estate distributed under intestacy rules instead. This is stricter than most states, which don't impose a probate filing deadline.

When a trust is useful

When avoiding probate for real property, when managing the fraud of marital rights doctrine through clear ownership structures, when privacy matters, when the estate involves property in multiple states, or when the $20,000 preferential share is inadequate and distributions need to be structured differently.

When a trust is unnecessary

Very small estates that qualify for the small estate affidavit, or straightforward estates where the intestacy result matches the testator's wishes and no spousal rights issues exist.

Key mistake

Creating a trust but not retitling assets into it. Unfunded trust assets go through probate and may be subject to the fraud of marital rights analysis.

Missing the one-year probate filing deadline

Missouri requires the will to be admitted to probate within one year of death. Missing this deadline can bar the will entirely, forcing distribution under intestacy — even if the will was properly executed and clearly reflects the testator's wishes.

Relying on the $20,000 preferential share as meaningful protection

Missouri's $20,000 preferential share for surviving spouses hasn't been updated since 1996 and provides minimal financial protection. For context, Michigan provides $150,000, Massachusetts provides $100,000 to $200,000, and many states provide significantly more.

Making lifetime real estate gifts without the spouse's consent

Missouri presumes that real property transfers are in fraud of marital rights unless the spouse consented with full disclosure. A surviving spouse can claw back such transfers into the estate, overriding the gift.

Using a beneficiary as one of only two witnesses

The interested witness's bequest is voided to the extent it exceeds their intestate share unless two additional disinterested witnesses also sign. Always use disinterested witnesses.

Assuming a holographic will is easy to probate

Holographic wills are valid in Missouri but can be difficult to authenticate at probate. The handwriting must be verified, and without witnesses, the authenticity of the document itself may be challenged.

Not understanding the blended family intestacy distinction

When all children are also children of the surviving spouse, the spouse gets the $20,000 preferential share plus half the balance. When any child is NOT the spouse's child, the preferential share disappears entirely and the spouse gets only half. This distinction catches many blended families by surprise.