By Aaron Thomas, Esq. · Updated October 28, 2026
Austin couples can get a prenup or postnup on a flat fee, start to finish, without visiting an office. In 2026, a prenup or postnup typically costs between $600 and $10,000 or more per couple, depending on how the agreement is created.
At Prenups.com, a prenup is a flat $3,500, or $5,000 to include negotiations with your partner’s attorney.
At Prenups.com, a postnup is a flat $4,500, or $6,500 to include negotiations with your spouse’s attorney.
Key Takeaways
- A prenuptial agreement lawyer in Austin typically charges $2,500 to $10,000 or more on an hourly basis, depending on complexity and negotiation. Prenups.com charges a flat fee instead, with no hourly billing.
- Prenups.com is fully virtual. Austin couples meet by video, sign remotely, and pay the same flat fee as couples anywhere else in Texas.
- Texas is a community property state, and income from separate property, such as rent, dividends, and interest, is community property by default unless the spouses agree in writing to keep it separate.
- Texas enforces prenups under a strongly pro-enforcement test in Texas Family Code § 4.006, and fairness is judged at signing.
- Married Austin couples use a partition and exchange agreement, the Texas form of a postnup, which must be in writing and signed by both spouses.
What a Prenuptial Agreement Lawyer in Austin Costs
Most Austin family law attorneys bill prenups by the hour. Attorney-drafted agreements typically run $2,500 to $10,000, and complex estates can go higher. The low end usually reflects a near-form document from an attorney who does not focus on marital agreements. Add equity compensation, a business, rental property, or a round of negotiation between two attorneys, and the bill climbs toward the top of the range.
The problem with hourly pricing is not only the size of the bill. It is that nobody can tell you the number until the work is done. A flat fee fixes the price before you start, so a second round of revisions or another question does not cost more. For the national picture, see how much a prenup costs across the U.S.
How Prenups.com Works for Austin Couples
Prenups.com does not have an Austin office, and it does not need one. Every step happens remotely: a video consultation, written financial disclosure, drafting, review, and signing.
What matters for a Texas prenup is that the attorney is licensed in Texas and knows Texas law, not where the attorney sits. A couple in Mueller, Round Rock, or Dripping Springs gets the same process and the same flat fee as a couple anywhere else in the state.
Texas Law Austin Couples Should Know
Texas is a community property state. By default, property acquired during the marriage, other than separate property, is community property, and property held during the marriage is presumed to be community unless proven otherwise by clear and convincing evidence.
The rule that catches Austin couples most often involves income from separate property. Rent from a condo bought before the wedding, dividends from a premarital brokerage account, and interest on premarital savings are community property by default. The Texas Constitution allows spouses to agree in writing that this income stays separate. Without that written agreement, it does not.
Thinking about a prenup?
Talk to an attorney before you decide. A 30-minute consultation is $150, credited toward your agreement if you move forward.
Schedule a Consultation →The good news is the enforcement test. Under Texas Family Code § 4.006, a prenup is unenforceable only if the challenger proves involuntary signing, or proves that the agreement was unconscionable when signed and that, before signing, they received no fair and reasonable disclosure, did not voluntarily and expressly waive disclosure in writing, and had no adequate knowledge of the other partner’s finances. Complete, documented disclosure is what keeps an agreement on the right side of that test.
Equity, Startups, and the Austin Economy
Many Austin couples bring stock options, restricted stock units, or an early-stage company into the marriage. Those assets raise questions a template cannot answer: how much of a vesting grant was earned before the wedding, whether shares bought with community income are community property, and how a company that grows during the marriage is credited. Couples are also marrying later: in 2025, the median age at first marriage was 30.8 for men and 28.4 for women, according to the U.S. Census Bureau, which often means more equity has vested before the wedding. A prenup can answer each of these questions in writing. For founders, the founder’s prenup blueprint covers the business questions in more depth.
Postnups for Austin Couples
Texas law does not use the word “postnup.” Spouses who want to divide community property, or agree that income from separate property stays separate, sign a partition and exchange agreement. It must be in writing and signed by both spouses, it does not require consideration, and it is enforced under the same test as a premarital agreement. A postnup often follows a change in the marriage: a business started after the wedding, an inheritance, or a home bought together. For how postnups work nationally, see the full guide to postnuptial agreements.
“An Austin couple’s biggest risk is usually not the divorce rules themselves. It is income from separate property and equity that quietly becomes community property because nobody wrote down otherwise,” says Aaron Thomas, Esq., founder of Prenups.com.
Want an Austin prenup or postnup on a flat fee? Every Texas agreement is prepared by our attorneys, including a Texas-licensed attorney as counsel of record, from the first draft through signing. The full flat-fee pricing is published. Schedule a consultation.
Frequently Asked Questions
How much does a prenuptial agreement lawyer cost in Austin?
Hourly attorneys in Austin typically charge $2,500 to $10,000 or more for a prenup, depending on complexity. At Prenups.com, a prenup is a flat $3,500, or $5,000 to include negotiations with your partner’s attorney.
Do I need a local Austin attorney for my prenup?
No. What matters is that the attorney is licensed in Texas and knows Texas law. Prenups.com handles the full process remotely, so Austin couples get the same process and the same flat fee as couples anywhere else in Texas, without an office visit.
How much does a postnup cost in Austin?
In 2026, a postnup typically costs between $600 and $10,000 or more per couple, depending on how it is created. At Prenups.com, a postnup is a flat $4,500, or $6,500 to include negotiations with your spouse’s attorney.
Are prenups enforceable in Texas?
Yes. Texas Family Code § 4.006 is strongly pro-enforcement: a challenger must prove involuntary signing, or unconscionability at signing combined with no fair disclosure, no written waiver of disclosure, and no adequate knowledge of the other partner’s finances.
Can a Texas prenup protect stock options or a startup?
Yes. A prenup can classify equity granted before the wedding, set how shares bought during the marriage are treated, and define how a company’s growth is credited. At Prenups.com, a prenup is a flat $3,500, or $5,000 to include negotiations with your partner’s attorney.
What is a partition and exchange agreement?
It is the Texas form of a postnup. Spouses use it to divide community property or keep income from separate property separate. It must be in writing and signed by both spouses.
Sources
- Tex. Fam. Code §§ 3.002, 3.003, 4.006, and 4.102 to 4.106 (community property; presumption; enforcement of premarital agreements; partition and exchange)
- Tex. Const. art. XVI, § 15 (separate property; agreements that income from separate property remains separate)
- U.S. Census Bureau, “Census Bureau Releases New Estimates on America’s Families and Living Arrangements” (Dec. 2, 2025) (median age at first marriage): https://www.census.gov/newsroom/press-releases/2025/families-and-living-arrangements.html
