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TX · Manually written guide

Prenup laws in Texas

Texas Family Code chapter 4 provides a compact statutory framework for formation, permitted subjects, effect, amendment, and enforcement of premarital agreements.Tex. Fam. Code § 4.002Tex. Fam. Code § 4.003(a)Tex. Fam. Code § 4.004Tex. Fam. Code § 4.005Tex. Fam. Code § 4.006

For document review, the central evidence clusters are the signed writing, the property and obligation disclosures, any written disclosure waiver, and the circumstances surrounding execution.Tex. Fam. Code § 4.002Tex. Fam. Code § 4.006

Evidence tiersection verified
Package versiontx-2026-07-18.3
Authorities6
Reviewed2026-07-18
Effective through2025-12-13 rendering
On this pageExecutionSubjects and limitsFinancial reviewExamplesQuestionsAuthorities

Formation and lifecycle

Execution requirements to investigate

formalities

Texas premarital-agreement formalities

A premarital agreement must be written and signed by both parties.

Tex. Fam. Code § 4.002
amendment revocation

Texas amendment or revocation

After marriage, amendment or revocation requires a written agreement signed by the parties.

Tex. Fam. Code § 4.005

What the agreement addresses

Permitted subjects and legal limits

permitted subjects

Texas permitted subjects

Texas lists property, disposition, support, estate-planning, insurance, choice-of-law, and other lawful subjects.

Tex. Fam. Code § 4.003(a)
child support

Texas child-support limitation

A premarital agreement may not adversely affect a child's right to support.

Tex. Fam. Code § 4.003(b)

Process evidence

Financial disclosure, voluntariness, counsel, and timing

financial disclosure

Texas voluntariness and financial disclosure

Texas addresses voluntary signing and an unconscionability framework involving disclosure, written waiver, and adequate knowledge.

Tex. Fam. Code § 4.006

Hypotheticals, not outcomes

Practical examples

These examples show how document facts can intersect with the cited sources. They do not predict a court result.

Example 01

The referenced but missing schedule

The agreement says each party received a financial exhibit, but the reviewed file lacks that exhibit. Texas's enforcement section makes the underlying disclosure, waiver, and knowledge evidence a lawyer-review issue.Tex. Fam. Code § 4.006

Ask local counsel

What evidence shows the disclosure actually provided, any written waiver, and each party's independent knowledge?

Example 02

The later handwritten change

The spouses later initial a handwritten change without a separate signed agreement. Texas has a specific writing-and-signature rule for amendment or revocation after marriage.Tex. Fam. Code § 4.005

Ask local counsel

Does the later document satisfy the current statutory amendment requirements?

Common starting points

Texas prenup FAQs

Answers are deliberately scoped to the cited evidence package and should be checked against current law.

What are the basic Texas formalities?

The Texas package identifies a writing signed by both parties and notes that consideration is not required.Tex. Fam. Code § 4.002

What financial evidence matters in Texas?

The enforcement provision addresses fair and reasonable disclosure, voluntary written waiver of further disclosure, and adequate knowledge of property or financial obligations.Tex. Fam. Code § 4.006

Can the agreement reduce a child's support rights?

The Texas permitted-subjects provision states that a child's right to support may not be adversely affected.Tex. Fam. Code § 4.003(b)

Prepare for independent advice

Questions for a Texas lawyer

Bring the agreement, every exhibit, prior drafts, disclosure records, and a signing timeline. Then use the source-linked questions as an interview guide.

  1. 01

    Are the agreement and every incorporated exhibit complete and signed by both parties?Tex. Fam. Code § 4.002

  2. 02

    Which provisions require coordinated title, beneficiary, trust, or estate documents?Tex. Fam. Code § 4.003(a)

  3. 03

    Does any child-related term reach beyond subjects the parties can resolve in advance?Tex. Fam. Code § 4.003(b)

  4. 04

    Does the draft clearly identify which provisions become effective on marriage?Tex. Fam. Code § 4.004

  5. 05

    Does the amendment clause preserve the signed-writing requirement after marriage?Tex. Fam. Code § 4.005

  6. 06

    What disclosure was actually provided before signing, and how complete was it?Tex. Fam. Code § 4.006

  7. 07

    If disclosure was waived, does the writing and factual record support the statutory framework?Tex. Fam. Code § 4.006

Inspect the evidence

Principal statutes and cases

Every citation label above resolves to one of these records. Open the linked authority and verify the current text with licensed counsel.

formalitiesstatute

Tex. Fam. Code § 4.002

Texas premarital-agreement formalities

A premarital agreement must be written and signed by both parties.

  • The agreement is enforceable without consideration.
permitted subjectsstatute

Tex. Fam. Code § 4.003(a)

Texas permitted subjects

Texas lists property, disposition, support, estate-planning, insurance, choice-of-law, and other lawful subjects.

  • The listed subjects include modification or elimination of spousal support.
  • The listed subjects include wills, trusts, life-insurance death benefits, and choice of law.
child supportstatute

Tex. Fam. Code § 4.003(b)

Texas child-support limitation

A premarital agreement may not adversely affect a child's right to support.

    effective datestatute

    Tex. Fam. Code § 4.004

    Texas effective date

    A premarital agreement becomes effective on marriage.

      amendment revocationstatute

      Tex. Fam. Code § 4.005

      Texas amendment or revocation

      After marriage, amendment or revocation requires a written agreement signed by the parties.

      • The amendment or revocation is enforceable without consideration.
      financial disclosurestatute

      Tex. Fam. Code § 4.006

      Texas voluntariness and financial disclosure

      Texas addresses voluntary signing and an unconscionability framework involving disclosure, written waiver, and adequate knowledge.

      • The framework addresses fair and reasonable disclosure of property or financial obligations.
      • It also addresses express written waiver of further disclosure and adequate knowledge.
      • The court decides unconscionability as a matter of law.

      Known boundaries

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