Texas Prenuptial & Postnuptial Agreements
A well-drafted premarital or marital property agreement is one of the highest-leverage legal documents you’ll ever sign – and one of the easiest to draft badly. We help Houston couples create agreements that protect what matters and survive challenge.
Premarital vs. Marital Property Agreements
Texas recognizes two kinds of marital property contracts:
- Premarital Agreement (Prenup) – signed *before* the marriage, effective when the marriage occurs.
- Marital Property Agreement / Postnuptial Agreement – signed *during* the marriage, addressing existing community property, separate property, or future income.
Both let spouses-to-be (or spouses) define:
- What is community property and what is separate property
- How property and debts will be divided in divorce or death
- Whether one spouse will pay spousal maintenance (and how much, for how long)
- Management and control of property during marriage
- Disposition of property at death
- Choice of law, choice of forum
- Almost anything not prohibited by public policy
What they cannot do:
- Limit or waive a child’s right to support
- Pre-determine custody or possession
- Violate public policy or include illegal terms
Why People Sign Prenups in Texas
Common reasons:
- Protecting a business built before the marriage
- Protecting an inheritance or family legacy assets
- Second marriages with children from prior relationships
- Significant disparity in wealth or income
- Pre-marriage debts one spouse wants to keep separate
- Asset protection for self-employed entrepreneurs
- Estate planning coordination with trusts and wills
- Avoiding the cost and uncertainty of community property litigation if divorce ever occurs
Prenups are not just for the wealthy. Anyone entering marriage with significant separate property – including future inheritances, a closely-held business, or a professional practice – should consider one.
Why People Sign Postnuptial Agreements
Postnups are less common but increasingly important:
- A spouse received an unexpected inheritance and wants to protect it
- A spouse starts a business after marriage and wants to define ownership
- The couple is reconciling after a separation and wants to set new ground rules
- One spouse engaged in financial misconduct and the couple agrees to a restructuring
- Estate planning requires a clean delineation of property
In Texas, postnups can also convert community property to separate property (a “partition or exchange”) – a powerful tool with strict requirements.
Get Kuehm.
What Makes a Texas Prenup or Postnup Enforceable
For a Texas premarital or marital property agreement to be enforceable, the law requires:
- In writing, signed by both parties (oral agreements are not enforceable).
- Voluntarily signed – no duress, coercion, or undue pressure.
- Fair and reasonable disclosure of each party’s property and financial obligations – OR a written, knowing, voluntary waiver of disclosure – OR actual or constructive knowledge of the other party’s property.
These three pillars matter. A prenup signed under duress (e.g., presented the morning of the wedding) – or without disclosure – can be set aside in divorce.
The party challenging the agreement has the burden of proving unenforceability. That’s intentional: Texas law favors enforcement of properly-executed agreements.
How to Draft a Prenup That Will Actually Hold Up
Decades of practice tells us what works:
- Each spouse has separate counsel. No exceptions for high-stakes agreements.
- Detailed financial disclosures. Full schedules of assets, liabilities, and income.
- Sign well in advance of the wedding – months, not days. A prenup signed the night before is the textbook duress fact pattern.
- Clear language. Avoid clauses that look “unconscionable” without context.
- Avoid one-sided terms that risk public policy challenges (e.g., complete waiver of all spousal maintenance regardless of circumstance).
- Address both divorce AND death. Most prenups skip the death piece, creating estate plan conflicts later.
- Plan for changes. Anticipate what happens if one spouse takes time off work, has children, or relocates.
- Coordinate with estate planning counsel. A prenup that contradicts a will or trust can create chaos.
When Texas Courts Set Aside Prenups
Texas courts can refuse to enforce a prenup when:
- The party seeking enforcement didn’t disclose their property fairly
- The other party didn’t have actual or constructive knowledge of the assets
- There was no opportunity to consult counsel
- It was signed under duress (e.g., presented on the wedding day)
- A specific clause is unconscionable under Texas Family Code § 4.006
We draft prenups to anticipate every one of these – and we represent clients on both sides of prenup litigation.
If You've Been Handed a Prenup
If your fiancé(e) hands you a prenup to sign – even a short one – get your own lawyer. Specifically:
- Don’t sign anything until you’ve had a real review. Days, not hours.
- Get a complete schedule of the other party’s assets and debts. No vague references – actual values, statements, dates.
- Negotiate. Most prenups are draft positions, not final terms. Common areas to negotiate: sunset clauses, spousal maintenance carve-outs, treatment of post-marriage appreciation, child-related triggers.
- Document your independent representation. Your own lawyer’s review is part of what makes the agreement enforceable later.
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How long does a Texas prenup take to draft?
Straightforward prenups take 4–8 weeks. Complex agreements involving businesses, multiple properties, or significant disclosures can take 2–4 months. Don't start a month before the wedding.
Can a prenup waive spousal maintenance in Texas?
Yes - generally. Texas allows parties to waive spousal maintenance. The waiver must be voluntary and not unconscionable.
Can a prenup decide custody in advance?
No. Custody, possession, and child support are always determined by the court at the time of divorce, based on the child's best interest. Any prenup clause that purports to decide these is unenforceable.
What's the difference between a partition agreement and a postnup?
A "partition or exchange agreement" is a specific type of marital property agreement that converts existing community property into separate property. A postnup is broader - it can include partition language plus other terms.
Does a Texas prenup signed in another state hold up?
Often yes, but careful conflict-of-laws drafting helps. If you signed a prenup in another state and now live in Texas, have a Texas attorney review it.
Talk to a Houston Prenup & Postnup Attorney
Whether you’re getting married, currently married, or evaluating an agreement you’ve been asked to sign, the time to think carefully is now – before the document is in place. Let’s talk.
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