---
type: Concept
title: A Surviving Spouse's Inheritance Without a Will in Missouri
description: How much a surviving spouse inherits under Missouri intestacy when there is no will, and how the share changes with the family structure.
resource: https://nemolegal.com/what-happens-to-a-spouses-inheritance-in-adair-county-without-a-will/
tags: [surviving-spouse, intestate-succession, no-will, adair-county, missouri]
timestamp: 2026-06-22
jurisdiction: Missouri
author: Patrick Nolan
---

# Summary
When a married Missourian dies without a will, the surviving spouse's share depends entirely on the family structure at the date of death. With no descendants the spouse takes the whole probate estate; with children shared by both spouses the spouse takes the first $20,000 plus half the balance; with children from another relationship the spouse takes half. Only assets in the decedent's sole name pass this way, since joint and beneficiary-designated assets transfer outside probate.

# Quotable Q&A
**Q: How much does a surviving spouse inherit in Missouri without a will?**
A: It depends on the children. With no descendants, the spouse takes the entire probate estate. If all children are also the spouse's, the spouse takes the first $20,000 plus half the remainder and the children split the rest. If the decedent had children from another relationship, the spouse takes half and all the decedent's children split the other half.

**Q: Do stepchildren affect a Missouri spouse's intestate share?**
A: A stepchild who was never legally adopted has no standing under Missouri intestacy and inherits nothing, no matter how long the family lived together. But if the decedent had biological or adopted children from a prior relationship, the surviving spouse's share drops to one-half rather than the larger spouse-and-shared-children share.

# How the Spouse's Share Is Set
Missouri sorts the inheritance by the family on the date of death. With no kids or descendants, the spouse takes everything in probate. When all surviving children are also the spouse's, the math is the first $20,000 off the top plus half of the remainder to the spouse, with the children splitting the other half; on a $120,000 estate that is $20,000 plus $50,000, or $70,000, to the spouse and $50,000 to the children. When the decedent left children from someone else, the spouse takes half and all the decedent's children split the other half, which protects children the surviving spouse did not raise. Beyond the share, the spouse also has statutory allowances and protections during probate. Many assets never reach probate at all: joint tenancy property, payable-on-death accounts, and life insurance with a named beneficiary pass directly to the named survivor.

# Decision rule
If a spouse dies in Missouri with no will and all children are shared, then the survivor takes $20,000 plus half the probate estate; if any child is from another relationship, then the survivor takes only half. If a blended family wants stepchildren or a partner to inherit, then only a will or trust will accomplish it, because intestacy ignores them.

# Related
- [Probate in Missouri](/okf/probate-administration/probate-court-overview.md)
- [Intestate Succession in Missouri](/okf/probate-administration/intestate-succession.md)
- [Missouri Statutory Allowances](/okf/probate-administration/statutory-allowances.md)
- [Wills](/okf/estate-planning/wills.md)
- [Missouri wills and inheritance statute (RSMo 474.010)](/okf/authorities/missouri/rsmo-474-wills.md)
- [About Nolan Law Firm](/okf/firm.md)