What Should Be in a Prenup in Louisiana? 2026 Complete Guide to Matrimonial Agreements

A Louisiana prenuptial agreement (legally called a matrimonial agreement) must be executed before the marriage in authentic act form, requiring signatures before a notary public and two witnesses under La. C.C. Art. 2331. Louisiana is the only U.S. state operating under a civil law system derived from the Napoleonic Code, making its prenup requirements fundamentally different from the other 49 states. The most common provision in Louisiana prenups is opting out of the default community property regime, allowing couples to establish a separation of property system where each spouse retains sole ownership of their earnings and acquisitions.

Key Facts: Louisiana Prenuptial Agreements

What Louisiana Law Says About Prenuptial Agreements

Under Louisiana Civil Code Article 2328, a matrimonial agreement is a contract establishing a regime of separation of property or modifying or terminating the legal regime governing marital assets. Louisiana grants spouses significant freedom to structure their financial relationship, provided they comply with strict formal requirements and do not violate public policy prohibitions. The statute explicitly states that provisions of the legal regime not excluded or modified by agreement retain their force and effect.

Louisiana prenups differ from those in common law states because Louisiana operates under a civil law system based on the Napoleonic Code. This means Louisiana courts interpret matrimonial agreements according to principles derived from French and Spanish legal traditions rather than English common law. The practical impact is that Louisiana has stricter formal requirements but generally broader contractual freedom regarding property matters.

Essential Clauses: What to Include in a Prenup in Louisiana

Property Classification and Division

The most critical clause in any Louisiana prenup addresses whether couples will follow the default community property regime or establish a separation of property system. Under La. C.C. Art. 2336, community property includes property acquired during marriage through the effort, skill, or industry of either spouse, while separate property includes property owned before marriage and inheritances received during marriage. Couples must decide whether to modify, limit, or entirely replace this default system.

A separation of property clause specifies that each spouse retains sole ownership of their pre-marital assets, post-marital earnings, and any property acquired in their individual name. Under this arrangement, no community estate exists, and each spouse manages and disposes of their separate property independently. Approximately 60-70% of Louisiana prenups include some form of separation of property provision, either complete separation or modified community with carve-outs for specific assets.

A modified community property clause allows couples to maintain the community system while excluding specific assets. Common modifications include keeping a family business as separate property, designating inherited property and its fruits (income, appreciation) as separate, or excluding professional goodwill from community claims. This hybrid approach preserves community principles while protecting identified assets.

Debt Allocation Provisions

Louisiana prenups should clearly address both pre-marital and post-marital debt responsibility. Under the default community regime, obligations incurred during marriage for common interests are community obligations under La. C.C. Art. 2360. A prenup can modify this by specifying that each spouse remains solely responsible for debts incurred in their individual name, regardless of when the debt was acquired.

Debt provisions typically address student loans (averaging $37,000 per borrower in Louisiana), credit card debt, business debts, mortgage obligations, and tax liabilities. Couples should itemize existing debts in an attached schedule with current balances as of the execution date. Without clear debt allocation language, Louisiana courts may hold both spouses liable for community debts even if only one spouse benefited from the obligation.

Spousal Support Waiver or Limitation

Louisiana law permits waiving or limiting final periodic spousal support (permanent alimony) in a prenuptial agreement under established case law including Barber v. Barber, 38 So.3d 1046 (La. App. 1 Cir. 2010). Courts have consistently upheld such waivers when both spouses understood the provision and voluntarily agreed to it. However, a Louisiana prenup cannot waive interim spousal support (alimony pendente lite) during divorce proceedings, as this is considered a matter of public policy.

When including spousal support provisions, couples should specify whether the waiver is mutual or one-sided, whether any conditions trigger support obligations (such as length of marriage or disability), and whether the waiver applies to both interim and final support or only final support. Louisiana courts retain discretion to award interim support regardless of prenup terms if one spouse demonstrates need during divorce proceedings.

Business Ownership and Appreciation

Business owners in Louisiana should include specific provisions addressing pre-marital business interests, future business appreciation, and professional practices. Without a prenup, appreciation of a separate property business during marriage may be partially characterized as community property if the appreciation resulted from spousal effort rather than market forces. Louisiana courts have valued business interests at amounts ranging from $50,000 to over $10 million in contested divorce proceedings.

Business provisions should identify the business entity by legal name and state of formation, establish that the business and all appreciation remains separate property, address whether the non-owner spouse has any claim to business income during marriage, and specify valuation methods if any business interests must be divided. Professional practices (law firms, medical practices, accounting firms) should address professional goodwill separately from enterprise goodwill.

Retirement Account Treatment

Retirement accounts represent significant assets in most Louisiana marriages, with the average 401(k) balance for workers aged 55-64 exceeding $200,000 nationally. Under community property principles, contributions made to retirement accounts during marriage from marital earnings are community property subject to division upon divorce. A prenup can specify that all retirement accounts remain the separate property of the contributing spouse.

Retirement provisions should address 401(k) plans, IRAs (traditional and Roth), pension plans, deferred compensation, and military retirement benefits. Couples should acknowledge that certain retirement benefits may be subject to federal law (ERISA) that limits contractual modifications. The prenup should also address whether pre-marital contributions and their growth remain separate while marital contributions become community property.

Real Property Provisions

Louisiana prenups frequently address real estate ownership, including the marital home, investment properties, and inherited family property. The agreement should specify whether real property acquired during marriage will be held as separate property, community property, or joint tenancy. For pre-marital real estate, the agreement should confirm separate property status and address whether mortgage payments made during marriage create any community interest.

Under La. C.C. Art. 2332, matrimonial agreements affecting immovable property must be recorded in the conveyance records of the parish where the property is located to be effective against third parties. If couples own property in multiple parishes, they must record the agreement in each parish. Recording fees range from $105 to $205 per parish depending on document length.

Inheritance and Gift Protections

While inherited property is already classified as separate property under La. C.C. Art. 2341, a prenup can provide additional protection by specifying that all inheritances and gifts received during marriage remain separate property, that income generated by inherited property remains separate (rather than becoming community as fruits), and that any appreciation of inherited property remains separate regardless of whether marital funds contributed to the appreciation.

Couples anticipating significant inheritances should include provisions addressing family trusts, life insurance proceeds, and transfers from parents or other family members. Louisiana has unique succession laws that may interact with prenuptial agreements, so inheritance provisions require careful drafting to ensure consistency with the marital portion and forced heirship rules.

What Cannot Be Included in a Louisiana Prenup

Louisiana law prohibits certain provisions in prenuptial agreements regardless of mutual consent. Under La. C.C. Art. 2330, spouses may not renounce or alter the marital portion or the established order of succession. This prohibition preserves Louisiana's unique succession rights that guarantee a surviving spouse a share of the deceased spouse's estate in certain circumstances.

Child Support and Custody

Louisiana prenups cannot include provisions regarding child support obligations or child custody arrangements. Child support is a right belonging to the child, not the parents, and Louisiana courts determine support based on the income shares model at the time of divorce. Child support guidelines require the non-custodial parent to pay a percentage of combined income ranging from 20% for one child to 40% for five or more children under La. R.S. 9:315.14.

Custody determinations must be made based on the best interests of the child at the time of divorce, not predetermined by prenuptial agreement. Louisiana courts consider twelve statutory factors when determining custody, including the emotional ties between each parent and child, the capacity of each party to give love and guidance, and the moral fitness of each party.

Interim Spousal Support

As established in Barber v. Barber (2010), Louisiana prenups cannot waive interim spousal support (alimony pendente lite) during divorce proceedings. Louisiana courts reason that interim support protects a dependent spouse during the vulnerable period of divorce litigation when the community regime has ended but assets have not yet been divided. This protection is considered a matter of public policy that cannot be waived by private agreement.

Non-Financial Matters

Louisiana prenups are limited to financial matters and cannot include provisions regarding personal conduct, household duties, religious practices, family planning decisions, or lifestyle requirements. Courts will not enforce penalty clauses based on infidelity, weight gain, or other personal conduct. While such provisions sometimes appear in prenuptial agreements, Louisiana courts treat them as unenforceable surplusage.

Formal Requirements for a Valid Louisiana Prenup

Execution Requirements

Louisiana imposes strict formal requirements for valid prenuptial agreements under La. C.C. Art. 2331. The agreement must be executed before the marriage by authentic act, meaning both parties must sign in the presence of a notary public and two witnesses. Alternatively, parties may privately sign the agreement and later acknowledge their signatures before a notary, but all formalities must be completed before the wedding ceremony.

The Louisiana Supreme Court has strictly enforced these requirements. In Acurio v. Acurio (2017), the court invalidated a prenuptial agreement because it was signed before a notary and only one witness rather than the required two witnesses. In Galetta (2013), the court voided an agreement because one spouse's acknowledgment certificate omitted key language confirming the notary verified the signer's identity. Even minor technical defects can render a Louisiana prenup entirely unenforceable.

Recording Requirements

Under La. C.C. Art. 2332, a matrimonial agreement is effective toward third parties as to immovable property when filed in the conveyance records of the parish where the property is located, and as to movables when filed in the parish where the spouses are domiciled. Recording is not required for the agreement to be valid between the spouses but is necessary to protect against third-party claims.

Recording fees under La. R.S. 13:844 are $105 for documents of 1-5 pages, $205 for documents of 6-25 pages, and $300 for documents of 26-50 pages. Most prenuptial agreements with financial schedules fall in the 6-25 page range, so couples should budget $205 per parish. An additional $5 portal fee applies per document for the Louisiana Clerks Remote Access Authority.

Financial Disclosure Practices

Louisiana does not have a statutory requirement for financial disclosure in prenuptial agreements, unlike the 28 states that adopted the Uniform Premarital Agreement Act. However, Louisiana courts have invalidated matrimonial agreements where one party lacked knowledge of the other's financial situation at the time of signing. Attorneys universally recommend full disclosure to protect the agreement from challenge.

Best practices include attaching detailed financial schedules listing all assets and liabilities, providing recent tax returns (typically three years), disclosing business valuations for closely held entities, and providing copies of estate planning documents. The exchange of financial information should be documented with signed acknowledgments of receipt.

Timing Considerations

Louisiana couples should complete prenup execution at least 30-60 days before the wedding to avoid duress challenges. While no statutory waiting period exists, presenting a prenup days before the ceremony creates risk of invalidity based on coercion, pressure, or insufficient time for legal review and voluntary consent. Courts have found duress where agreements were presented within days of the wedding, particularly when significant wedding deposits were non-refundable.

Costs of a Louisiana Prenuptial Agreement

Louisiana prenuptial agreement costs include attorney fees, notary charges, and parish recording fees. Attorney hourly rates in Louisiana range from $149 to $342 per hour in 2026, with experienced prenup lawyers typically charging $250-$350 per hour in urban markets like New Orleans and Baton Rouge. A basic prenuptial agreement typically costs $720-$2,500 for straightforward situations, while complex agreements involving business interests, significant assets, or extensive negotiations can cost $5,000-$10,000 or more.

Online prenup platforms charge $149-$599 but still require in-person notarization with two witnesses in Louisiana, adding $50-$150 for notary services. While these platforms can reduce costs, Louisiana's unique civil law system and strict formal requirements make professional legal review highly advisable.

As of May 2026. Verify current fees with your parish clerk of court.

Louisiana Prenup vs. Postnuptial Agreement

Louisiana law treats prenuptial and postnuptial agreements differently regarding court approval requirements. Under La. C.C. Art. 2329, spouses may enter into a matrimonial agreement before marriage without court approval, but spouses who wish to modify or terminate the matrimonial regime during marriage must file a joint petition and obtain a court finding that the agreement serves their best interests and that they understand the governing principles and rules.

The court approval requirement for postnuptial agreements adds significant time and expense. Couples must file a petition, attend a hearing, and obtain a judicial order before the postnuptial agreement becomes effective. This process typically costs $1,500-$3,000 in additional attorney fees and takes 30-60 days to complete. Prenuptial agreements avoid this process entirely.

Grounds for Invalidating a Louisiana Prenup

Louisiana courts may invalidate a prenuptial agreement based on procedural defects, fraud, duress, lack of disclosure, or unconscionability. The party challenging the prenup bears the burden of proving these grounds. Courts will not invalidate agreements merely because one party negotiated more favorable terms or because circumstances changed during marriage.

Procedural Defects

Louisiana courts have strictly enforced formal requirements, invalidating agreements with defective notarization, insufficient witnesses, or acknowledgment errors. In Acurio v. Acurio (2017), the Louisiana Supreme Court voided a prenup that had a notary and one witness rather than the required two witnesses. In Galetta (2013), an agreement was invalidated because the acknowledgment certificate omitted required identity verification language.

Fraud and Misrepresentation

Prenuptial agreements may be invalidated when one party proves fraud or misrepresentation regarding assets, debts, income, or other material facts. Louisiana courts have consistently invalidated agreements where one party concealed significant assets or misrepresented their financial situation. The defrauded party must prove both the misrepresentation and reliance on that misrepresentation in executing the agreement.

Duress and Coercion

Agreements signed under duress or coercion are unenforceable. Duress may be found when one party threatened to cancel the wedding unless the other signed, when the agreement was presented immediately before the ceremony with no time for review, or when one party was in a position of significant economic vulnerability. Courts examine the totality of circumstances surrounding execution.

Unconscionability

Louisiana courts may refuse to enforce prenuptial agreement provisions that are unconscionable or would leave one spouse in extreme hardship. Unlike procedural challenges, unconscionability is evaluated at the time of enforcement, not execution. A provision that seemed reasonable at the time of signing may be deemed unconscionable if enforcing it would leave one spouse destitute after a long marriage.

Frequently Asked Questions

What must a Louisiana prenup include to be valid?

A valid Louisiana prenuptial agreement must be executed before the marriage in authentic act form under La. C.C. Art. 2331, requiring both parties to sign before a notary public and two witnesses. The agreement must address property matters permitted by law, be entered voluntarily without fraud or duress, and should include full financial disclosure schedules. Recording in parish conveyance records ($105-$205) is required to bind third parties under La. C.C. Art. 2332.

Can a prenup in Louisiana waive alimony?

Louisiana prenups can waive or limit final periodic spousal support (permanent alimony) per Barber v. Barber (2010), but cannot waive interim spousal support during divorce proceedings. Interim support is considered a public policy protection that cannot be contracted away. Louisiana courts generally enforce permanent support waivers when both spouses understood the provision and it does not leave one spouse destitute at the time of divorce.

How much does a prenup cost in Louisiana in 2026?

Louisiana prenup costs range from $720-$2,500 for basic agreements to $5,000-$10,000+ for complex situations involving businesses or significant assets. Attorney hourly rates range from $149-$342, with experienced prenup lawyers in New Orleans and Baton Rouge charging $250-$350 per hour. Additional costs include notary services ($50-$150), parish recording fees ($105-$205), and the $5 LCRAA portal fee. Online platforms charge $149-$599 but still require Louisiana notarization.

Does Louisiana require financial disclosure for prenups?

Louisiana does not have a statutory financial disclosure requirement unlike the 28 states that adopted the Uniform Premarital Agreement Act. However, Louisiana courts have invalidated prenups where one party lacked knowledge of the other's financial situation. Attorneys strongly recommend full disclosure including asset/debt schedules, three years of tax returns, business valuations, and signed acknowledgments of receipt to protect against future challenges.

Can a Louisiana prenup protect my business?

Yes, Louisiana prenups can protect pre-marital business interests by designating the business and all future appreciation as separate property. Without a prenup, appreciation attributable to spousal effort during marriage may be partially classified as community property subject to division. Business provisions should identify the entity by name, address income treatment, specify valuation methods, and distinguish professional goodwill from enterprise goodwill.

What is the difference between Louisiana prenup and postnup?

Prenuptial agreements in Louisiana can be executed before marriage without court approval under La. C.C. Art. 2329. Postnuptial agreements that modify the matrimonial regime during marriage require a joint petition and court finding that the agreement serves the spouses' best interests. The court approval process for postnups adds $1,500-$3,000 in legal fees and 30-60 days to complete. Both require authentic act execution with notary and witnesses.

How do I record a prenup in Louisiana?

File the prenuptial agreement in the conveyance records of each parish where you are domiciled and each parish where you own immovable property. Recording fees under La. R.S. 13:844 are $105 for 1-5 pages and $205 for 6-25 pages, plus a $5 portal fee. Recording makes the agreement enforceable against third parties like creditors and banks under La. C.C. Art. 2332. Contact your parish Clerk of Court for specific filing procedures.

What makes a Louisiana prenup unenforceable?

Louisiana prenups may be invalidated for procedural defects (missing notary, insufficient witnesses, defective acknowledgment), fraud or misrepresentation regarding finances, duress or coercion (especially presenting agreement immediately before wedding), or unconscionability at enforcement that would leave one spouse destitute. The Louisiana Supreme Court strictly enforces formal requirements, voiding agreements in Acurio (2017) and Galetta (2013) for technical defects.

Can a prenup address child custody in Louisiana?

No, Louisiana prenups cannot include provisions regarding child custody or child support. Custody must be determined based on the child's best interests at the time of divorce, considering twelve statutory factors. Child support belongs to the child, not the parents, and must be calculated using Louisiana's income shares model under La. R.S. 9:315.14. Courts will not enforce prenup provisions attempting to predetermine these matters.

How long before the wedding should I sign a Louisiana prenup?

Louisiana couples should complete prenup execution at least 30-60 days before the wedding to avoid duress challenges. While no statutory waiting period exists, agreements presented days before the ceremony risk invalidation based on coercion or insufficient time for legal review. All formalities including notarization and witness signatures must be completed before the marriage ceremony takes place.