Married couples in Texas can change the character of their property after the wedding, but not with a single all-purpose “postnup.” Texas Family Code chapter 4 provides specific instruments for specific purposes: a partition or exchange agreement that turns community property into separate property, an agreement that income from separate property will remain separate, and a conversion agreement that turns separate property into community property. Each has its own formalities and its own enforcement standard. A Texas postnuptial agreement attorney helps spouses choose the right instrument, draft it to meet the statute, and coordinate it with their estate plan.
Holmes Law is the practice of Michael Holmes, an attorney licensed in Texas who works with married couples remotely throughout the state. In Texas, Holmes Law’s family law work is limited to marital agreements, including premarital agreements and the postmarital agreements described on this page. Holmes Law does not handle Texas divorce, custody, support, or other family litigation. This page goes deeper on postmarital agreements and complements the broader Texas marital agreements page. It is general information, not legal advice.
Why Texas Has Several Postmarital Agreements, Not One
Texas community property is defined by article XVI, section 15 of the Texas Constitution. For much of Texas history, spouses could not change those constitutional categories by agreement. A 1980 amendment authorized spouses to partition or exchange community property, including future income, into separate property, and a 1999 amendment authorized spouses to agree to convert separate property into community property. The Family Code implements those amendments in chapter 4:
- Subchapter A, §§ 4.001–4.010: premarital agreements, covered on the Texas prenuptial agreements page.
- Subchapter B, §§ 4.101–4.106: partition or exchange of community property, and agreements about income from separate property.
- Subchapter C, §§ 4.201–4.206: agreements to convert separate property to community property.
Because each subchapter has different rules, the first question in any Texas postnuptial matter is what the spouses are trying to accomplish.
Partition and Exchange Agreements (Subchapter B)
Under Family Code § 4.102, spouses may at any time partition or exchange between themselves all or part of their community property, then existing or to be acquired, as the spouses may desire. Property transferred to a spouse by a partition or exchange agreement becomes that spouse’s separate property. Common uses include:
- Making a business started during marriage one spouse’s separate property.
- Dividing investment accounts so each spouse can manage and leave a share independently.
- Separating a spouse’s future earnings, for example when one spouse is entering a high-risk business or profession.
- Aligning property ownership with an estate plan that treats children from different marriages differently.
The income rule and why the signing date matters
A partition agreement can also provide that future earnings and income arising from the transferred property will be the separate property of the owning spouse. The default has changed over time. For partition or exchange agreements signed on or after September 1, 2005, income from partitioned property does not become separate property unless the agreement says so; the 2005 amendment (Acts 2005, 79th Leg., ch. 477) included a savings clause for earlier agreements, and for a period before that the default ran in the opposite direction. In practical terms, two agreements with identical wording can produce different results depending on when they were signed. Any partition agreement should say expressly whether income from the partitioned property is separate or community, and anyone relying on an older agreement should have it read with its signing date in mind.
Agreements about income from separate property
Texas treats income from separate property, such as interest, dividends, and rents, as community property. Section 4.103 allows spouses to agree that income or property arising from the separate property then owned by one of them, or thereafter acquired, will be the separate property of the owner. This is often the most important provision for a spouse who owns a significant separate estate, such as inherited investments or mineral interests producing royalties, and who wants the income to remain separate without the need for tracing.
Formalities and enforcement
Under § 4.104, a partition or exchange agreement, and a § 4.103 income agreement, must be in writing and signed by both spouses, and either agreement is enforceable without consideration. Section 4.105 provides an enforcement standard that mirrors the premarital agreement standard in § 4.006: the burden is on the spouse challenging the agreement, and the agreement is not enforceable if that spouse proves either involuntary execution, or unconscionability at signing combined with a lack of fair and reasonable disclosure, no written waiver of disclosure, and no adequate knowledge of the other spouse’s property and obligations. Whether an agreement is unconscionable is decided by the court as a matter of law under § 4.105(b), and § 4.105(c) makes these remedies and defenses exclusive, including of common-law remedies and defenses.
Creditors and recording
Under § 4.106(a), a provision of a partition or exchange agreement is void with respect to the rights of a preexisting creditor whose rights it is intended to defraud. Under § 4.106(b), the agreement is constructive notice to a good faith purchaser for value or a creditor without actual notice only if it is acknowledged and recorded in the county where the real property is located. That is a strong reason to acknowledge the agreement before a notary even though the statute does not make acknowledgment a condition of validity between the spouses.
Conversion Agreements (Subchapter C)
Some couples want to move in the opposite direction, turning separate property into community property. The most common reasons are to obtain a full basis adjustment for community property at the first spouse’s death under federal tax law, and to express a shared view that everything they own is jointly theirs. Family Code § 4.202 authorizes the spouses to agree that all or part of the separate property owned by either or both spouses is converted to community property.
Formalities under § 4.203
A conversion agreement must be in writing, signed by both spouses, identify the property being converted, and specify that the property is being converted to the spouses’ community property. Section 4.203(b) adds an important rule: the mere transfer of a spouse’s separate property to the name of the other spouse or to both spouses is not sufficient to convert the property to community property. Retitling an account or a deed into joint names does not do the job by itself.
Enforcement under § 4.205
The enforcement standard for conversion agreements differs significantly from the partition and premarital standards. Under § 4.205(a), a conversion agreement is not enforceable if the spouse against whom enforcement is sought proves either that the spouse did not execute the agreement voluntarily, or that the spouse did not receive a fair and reasonable disclosure of the legal effect of converting the property to community property. The standard is disjunctive, and there is no unconscionability element. That makes conversion agreements easier to challenge than partition or premarital agreements.
Section 4.205(b) provides a safe harbor. An agreement containing the statutory notice, prominently displayed in bold-faced type, capital letters, or underlined, warning that the converted property may become subject to the liabilities of the other spouse, may become subject to the joint management or the other spouse’s sole management, and may become the other spouse’s sole property if the marriage ends by death or divorce, creates a presumption that the spouse received fair and reasonable disclosure of the legal effect. The presumption is rebuttable, and omitting the notice forfeits it rather than invalidating the agreement. Every Texas conversion agreement should include it.
Section 4.206 addresses creditors and recording on terms similar to § 4.106: provisions intended to defraud preexisting creditors are void as to them, and acknowledgment and recording in the county where real property is located is what gives constructive notice to third parties.
Texas Postnuptial Agreement Attorney: Choosing the Right Tool
The right instrument depends on the goal:
- To make a spouse’s business, account, or future earnings separate: a partition or exchange agreement under § 4.102, with an express income provision.
- To keep income from existing separate property separate: a § 4.103 agreement, often combined with a partition.
- To combine everything into community property, often for tax basis planning or estate simplicity: a conversion agreement under subchapter C with the § 4.205(b) notice.
- To make community property pass to the surviving spouse outside probate: a community property survivorship agreement under Estates Code § 112.051, which is a separate instrument that can be signed alongside a partition or conversion agreement.
Spouses sometimes use more than one instrument at the same time, for example partitioning a business into one spouse’s separate property while converting other assets into community property.
Postnuptial Agreements and Divorce Planning
Postmarital agreements are sometimes signed after a marital difficulty, a reconciliation, a large inheritance, or a business event. They are not a substitute for a divorce settlement. When a divorce is contemplated or pending, a mediated settlement agreement or agreement incident to divorce is used, and those are handled by family law litigators. Holmes Law does not prepare agreements incident to divorce in Texas.
Postmarital agreements signed in an intact marriage should be negotiated with the same care as premarital agreements: meaningful financial disclosure, written acknowledgments, adequate time to review, and ideally separate counsel for each spouse. Because the spouses are already married and may feel pressure to sign to preserve the marriage, a record showing voluntariness is especially valuable.
Estate Planning, Tax, and Retirement Coordination
A postmarital agreement changes what each spouse owns, and therefore what each spouse can leave at death. After signing, wills, trusts, beneficiary designations, and account titles should be reviewed so they match. Holmes Law coordinates the agreement with Texas estate planning documents, including a Texas revocable trust where the couple uses one.
Two federal points arise often. First, community property generally receives a new income tax basis for both halves at the first spouse’s death, which is the main tax reason couples consider conversion agreements; the tax effect should be confirmed with a CPA. Second, under 26 C.F.R. § 1.401(a)-20, Q&A-28, a waiver of survivor benefits in a qualified retirement plan must be made by the spouse on the plan’s form; a clause in a marital agreement does not satisfy the requirement by itself.
Postmarital Agreements and the Family Home
The home is often the most valuable asset a couple owns and the one most likely to have a mixed character, for example a house bought before marriage by one spouse and paid down with community earnings during the marriage. Without an agreement, that pattern can produce a reimbursement claim under Family Code §§ 3.402 and following at divorce or death. A partition agreement can settle the home’s character, or a conversion agreement can make it community property, and either can resolve how future payments will be treated.
Changing the home’s character does not change its homestead status. Under Family Code § 5.001, both spouses generally must join to sell or encumber the homestead, whether it is separate or community property, and the surviving spouse’s homestead rights under the Texas Constitution and the Estates Code continue to apply. An agreement affecting the home should be acknowledged and recorded in the county where the home is located so it gives constructive notice, and the deed, any transfer on death deed under Estates Code chapter 114, and any revocable trust funding should be reviewed so that the recorded documents and the agreement point in the same direction.
How Holmes Law Handles Texas Postmarital Agreements
Holmes Law represents one spouse in a Texas postmarital agreement; the other spouse should have separate counsel. Typical work includes:
- Identifying the goal and selecting the correct chapter 4 instrument or combination.
- Drafting the agreement, including income provisions, disclosure schedules, and the § 4.205(b) notice for conversion agreements.
- Reviewing a draft prepared by the other spouse’s lawyer.
- Preparing acknowledgments and coordinating recording in the county where real property is located.
- Reviewing older partition agreements to determine how they apply, including the effect of the signing date on income.
- Coordinating the agreement with wills, trusts, survivorship agreements, and beneficiary designations.
Frequently Asked Questions
Are postnuptial agreements enforceable in Texas?
Yes. The Texas Constitution and Family Code chapter 4 authorize partition and exchange agreements and conversion agreements between spouses. They are enforceable if they meet the statutory formalities and survive the applicable enforcement standard in § 4.105 or § 4.205.
If I put my separate property in both our names, is it now community property?
No. Under § 4.203(b), transferring separate property into the other spouse’s name or both names does not by itself convert it to community property. Conversion requires a written agreement meeting § 4.203. Joint titling may, however, raise gift questions that should be reviewed separately.
Does a partition agreement make the income from partitioned property separate?
Only if the agreement says so, for agreements signed on or after September 1, 2005. Older agreements should be reviewed with their signing date in mind.
Do postnuptial agreements need to be recorded?
Recording is not required for validity between the spouses, but an agreement affecting real property gives constructive notice to third parties only if it is acknowledged and recorded in the county where the property is located.
Why is a conversion agreement easier to challenge?
Section 4.205 allows a challenge based on either involuntary execution or lack of fair and reasonable disclosure of the legal effect of conversion, without any unconscionability requirement. Including the statutory bold-type notice creates a rebuttable presumption that disclosure was adequate.
Can a postnuptial agreement decide custody or child support?
No. Custody and child support are decided by the court based on the child’s best interest, and Holmes Law’s Texas practice is limited to marital property agreements.
Speak With a Texas Postnuptial Agreement Attorney
Whether you want to make property separate, make it community, or clarify how income will be treated, the right Texas instrument and careful drafting make the difference. Contact Holmes Law to schedule a consultation with Michael Holmes about a Texas postmarital agreement.