Indiana Prenuptial Agreement
Indiana prenuptial agreements are governed by Indiana Code § 31-11-3 (UPAA, 1997). Courts apply single review only — unconscionability is assessed at signing, not additionally at divorce — and challengers must prove either involuntary execution or extreme hardship at enforcement. The alimony floor is concrete: courts may override a spousal support waiver only if enforcement would cause extreme hardship, effectively public assistance eligibility.
Bottom line: Indiana earns an A grade. Single review, a clear alimony floor, and a high burden to challenge make Indiana one of the stronger states for prenup enforceability.
Indiana Prenup Enforceability Rating: A
Indiana Prenup Laws: Key Statutes Explained
Indiana Code 31-11-3 (UPAA passed 1997)
Separate Property
All assets can remain separate property, avoiding costly divorce settlements. Joint assets and debts titled in both names are split 50/50 as marital property.
Unconscionability at Execution Only
Courts review unconscionability only at the time of execution, not at enforcement. Changed circumstances during marriage will not invalidate the prenup if it was reasonable when signed. Exception: spousal support modification may not leave one spouse facing “extreme hardship”, a standard at or slightly above public assistance.
Unconscionability Standard
A prenup is unenforceable if the party proves EITHER: (1) involuntary execution OR (2) unconscionable at execution (leaves one spouse in “extreme hardship”).
Public Assistance Alimony Floor
Spousal support can be waived entirely, but if enforcement would cause extreme hardship under unforeseeable circumstances—especially if the impacted spouse would be forced onto public assistance—courts may override the waiver and require only enough support to avoid extreme hardship.
Timing
No minimum specified, but we recommend signing the prenup at least 30-60 days before the wedding, with both parties having 2-3 weeks to review the final version to minimize challenge risk.
Independent Counsel
Not required, but separate counsel dramatically strengthens enforceability if the agreement is later challenged.
Financial Disclosure
"Fair and reasonable disclosure" of both parties assets, debts and income required, or can be expressly waived in writing. PerfectPrenup includes both.
Medium-High Burden to Challenge
Challenging party must prove the prenup is invalid by preponderance of evidence (standard burden, not the higher "clear and convincing" requirement). The challenger must prove either involuntary execution or “extreme hardship” (left on public assistance) at divorce.
Child Support and Custody
Child support and custody clauses are unenforceable and could undermine the entire agreement. Do not include.
Indiana Prenuptial Agreement Court Cases
Fetters v. Fetters, 26 N.E.3d 1016 (Ind. Ct. App. 2015)
Court invalidated prenup signed by 16-year-old with poor reading skills who had no independent counsel, where the agreement was entirely one-sided and arose from an illegal relationship between a 29-year-old man and 14-year-old girl.
DeHaan v. DeHaan, 572 N.E.2d 1315 (Ind. Ct. App. 1991)
Court awarded wife 50% of couple's timeshare company (worth $67 million) despite prenup limiting her to 20%, finding the marriage functioned as an economic partnership where both spouses worked 50-60 hours weekly building the business together.
Thompson v. Wolfram, 19A-DR-2622 (Ind. Ct. App. 2020)
Court divided $897,046 appreciation in husband's retirement accounts as marital property despite prenup, holding that agreement only protected the initial $97,477 value because it failed to explicitly state that future growth would also remain separate property.
Justus v. Justus, 581 N.E.2d 1265 (Ind. Ct. App. 1991)
Court found prenup requiring husband to pay $500,000 alimony potentially unconscionable where husband's net worth plummeted from $31 million to $300,000 due to bankruptcy, reasoning that enforcement cannot leave a spouse unable to support themselves.
Hunsberger v. Hunsberger, 653 N.E.2d 118 (Ind. Ct. App. 1995)
Court enforced prenup protecting husband's $130,000 retirement accounts despite lack of detailed financial disclosure, holding that agreements are valid if entered freely without fraud, duress, or misrepresentation and confirming Indiana does not require financial disclosure.
5-Step Checklist: How to Sign & Execute a Prenup in Indiana
Step 1: Download and read the Indiana prenuptial agreement
Start with our free template. It is written for Indiana-specific statutes and case law under the Indiana Uniform Premarital Agreement Act (Indiana Code 31-11-3). Read it in full — know what you are getting into legally with marriage. The 15+ pages is written thoroughly to include rebuttals to common legal challenges and fallback provisions. One critical Indiana note: unlike most states, you cannot fall back on a postnuptial agreement after marriage if your marriage is stable — a prenup is your only opportunity.
Step 2: Draft changes on your own
See a clause you don't like? Copy it into an AI like Claude, explain what you'd like to change or what you want the clause "to do." Save any changes as a separate alternate version — don't overwrite the original. Bring both versions to your attorney review. Note: AI is often gender-biased and crafts terms beyond what is legally required. Push back on its output.
Step 3: Find a lawyer in your state
Find a matrimonial or divorce attorney in your state. Avvo, Findlaw, and Justia are good. Look for someone with 10+ years experience. Call or email and ask them how much to review your draft prenup and help with signing. Send them your draft.
Step 4: Meet your lawyer 4–6 months before the wedding
Our recommendation: sign the prenup before proposing. That way, you both get the legal work out of the way, and you know this is the right person to marry. Already proposed? 4–6 months before the wedding should leave you enough time to give your spouse 1–2 weeks to review the final draft and have it signed 60+ days before the wedding. Indiana courts look hard at last-minute signing as evidence of involuntary execution — one of the two grounds to invalidate a prenup under IC 31-11-3-8.
Step 5: Sign, notarize, and store the agreement
Execute the agreement with both attorneys present — their witness signatures carry more enforceability weight than a standalone notary. Indiana law requires only a writing signed by both parties (IC 31-11-3-4) — no witnesses or notarization are mandated by statute. That said, notarization authenticates signatures and deters fraud claims, and attorney witness signatures provide the clearest evidence of voluntariness if the agreement is later challenged. Each party keeps a signed original, and so should each party's attorney. Store yours somewhere secure like a safety deposit box. Create a .pdf and save it via a backup drive and email.
Indiana Prenuptial Agreement: Frequently Asked Questions (2026)
What is a prenuptial agreement?
A legal contract signed before marriage that determines how assets, debts, and finances are handled if the marriage ends. We recommend assets and debts are kept separate, unless held jointly, where they are split 50/50. Alimony is modified to incentivize larger families and longer marriages, rather than divorce. A privacy clause allows the growth of an intimate, trusting relationship. A dispute resolution clause moves proceedings out of an expensive courtroom and into mediation or arbitration, lowering conflict to maintain a workable relationship in the event of divorce.
How much does a prenup cost in Indiana?
Attorney-drafted from scratch: $1,500–$5,000+ per side. The smarter approach: start with our free Indiana template, draft any changes with an AI like Claude, then hire an attorney only to review and assist with signing. The bill should be around $500 per side.
Are prenups enforceable in Indiana?
Yes — Indiana earns an A rating, one of the stronger enforcement states in the country. Courts review unconscionability only at signing — not at divorce — and there are only two grounds to challenge an agreement. The challenging party bears the burden of proof. Changed circumstances during marriage do not give a court grounds to rewrite the deal, with the narrow exception of the extreme hardship floor for spousal support.
What makes a prenup invalid in Indiana?
Only two grounds under IC 31-11-3-8: (1) involuntary execution, or (2) unconscionable when executed. Unlike many states, either ground alone is sufficient — they do not need to be proven together. Common practical failure points: last-minute presentation close to the wedding (Fetters), grossly one-sided terms that courts may find unconscionable, and vague language about asset protection that courts read narrowly (Thompson — prenup language protecting "retirement accounts" was held to cover only the balance at signing, not $897,046 in appreciation earned during the marriage). Leave out child custody and support entirely — Indiana courts will not enforce them and they can invalidate the rest of the agreement.
Do I need a lawyer to get a prenup in Indiana?
Not technically — Indiana does not require independent counsel. However, both sides having separate attorneys is the strongest evidence of voluntariness, and documented independent counsel dramatically lowers the risk of an involuntary execution challenge. Use the template to cut drafting costs — don't skip the attorney.
What should an Indiana prenuptial agreement include?
Our Indiana template is built around six core principles:
- Separate property — assets and debts stay with the party who acquired them, minimizing conflict
- Joint assets and debts — anything both parties sign for together is split 50/50
- Marital home — ownership is tracked as a percentage of contribution, so each party gets back what they put in
- Spousal support — structured to incentivize larger families and longer marriages, not divorce
- Full financial disclosure — all assets, debts, and income over $1,000, listed in the exhibits — not legally required in Indiana but essential best practice, satisfying IC 31-11-3-8
- Privacy clause — keeps financial and personal details private, supporting a trusting relationship
Leave out child custody and support entirely — Indiana courts will not enforce them and they can invalidate the rest of the agreement.
Why is Indiana's property law an especially strong reason to get a prenup?
Indiana follows the "one-pot" theory — one of the most aggressive property division standards in the country. Without a prenup, courts presume that ALL property owned by either spouse — including assets brought into the marriage, pre-marital retirement accounts, and inherited property — is marital property subject to equitable distribution under IC 31-15-7-4. Unlike most equitable distribution states, Indiana does not automatically protect pre-marital assets. A prenup is the only reliable way to properly define separate property.
How far in advance should I get a prenup in Indiana?
Sign 60+ days before the wedding. Give your spouse at least two weeks to review with their own attorney — Indiana courts scrutinize last-minute signing as evidence of involuntary execution, one of the two grounds to void a prenup. Contact an attorney 4–6 months before the wedding. Best practice: sign before proposing — no time pressure, and you'll be confident in whom you are choosing to marry.
Can I get a postnuptial agreement in Indiana if I skip the prenup?
Generally no — this is one of Indiana's most important quirks. Indiana postnuptial agreements are only available when a marriage is in a state of breakdown or separation. You cannot use a postnup to simply organize financial matters during a stable, ongoing marriage the way you can in most other states. This makes your prenup the only window to establish these protections. Don't wait.
Can a spousal support waiver be challenged in Indiana?
Yes, but the bar is high. Under IC 31-11-3-8(b), a court can override a spousal support waiver only if enforcement would cause "extreme hardship under circumstances not reasonably foreseeable at the time of execution." The clearest trigger is permanent disability leaving a spouse unable to earn income — Justus found a $500,000 alimony obligation potentially unconscionable where the paying spouse's net worth had collapsed from $31 million to $300,000 due to bankruptcy. A large income disparity alone, or financial changes that were foreseeable, are generally not enough.