Getting married in Missouri? A prenuptial agreement lets you set clear expectations about property, debt, and (where allowed) support—so you’re not relying only on default state rules.
Key points
- Prenups are recognized if they’re voluntary, in writing, and signed by both partners.
- Agreements are enforceable if entered voluntarily, with full disclosure, and not unconscionable when executed.
- Missouri prenups must be in writing, signed by both parties before marriage. Notarization is not required but recommended.
Are prenups legal in Missouri?
Missouri prenups must be in writing, signed by both parties before marriage. Notarization is not required but recommended. Full and fair disclosure or a valid written waiver is expected.
What makes a Missouri prenup enforceable?
Agreements are enforceable if entered voluntarily, with full disclosure, and not unconscionable when executed. Missouri courts may refuse enforcement if circumstances have changed so much that the agreement is grossly unfair at divorce.
What you can—and can’t—include
Can address property division, inheritance waivers, and alimony. Cannot bind child support or custody.
Simple process
Sign well in advance of marriage, ensure disclosure is thorough, and consider independent legal counsel and notarization.
Next steps
General information only, not legal advice. Laws and cases change—consider speaking with a local attorney about your situation.
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