Indiana Prenuptial Agreement
Indiana prenuptial agreements are governed by Indiana Code § 31-11-3 (UPAA, 1995). Courts review unconscionability at signing only — not at divorce — and challengers must prove involuntary execution or unconscionability at execution. Indiana's maintenance statute (IC 31-15-7-2) is among the most restrictive in the country: no formula, no lifestyle standard, and rehabilitative support capped at three years. Courts 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, no disclosure requirement, a high burden to challenge, and one of the nation's most limited maintenance statutes make Indiana among the strongest states for prenup enforceability.
How Indiana's Prenup Laws Rank: A+
Indiana Prenup Laws: Key Statutes Explained
Indiana Code 31-11-3 (UPAA passed 1995)
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
Financial disclosure is not required by statute — Indiana is one of the few UPAA states with no mandatory disclosure requirement. However, providing "fair and reasonable disclosure" is a best practice that strengthens enforceability and reduces challenge risk. PerfectPrenup includes both disclosure schedules and an express waiver.
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 in premarital assets 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)
1. How much does a prenup cost in Indiana?
Attorney-drafted from scratch: $1,500–$5,000+ per side, with most couples spending $3,000–$7,000 total. The smarter approach: start with a free Indiana-specific template, draft changes with an AI like Claude, then hire an attorney only to review and assist with signing — typically ~$500 per side. Indiana law does not require independent counsel, but having separate attorneys is the strongest evidence of voluntariness if the agreement is later challenged.
2. Are prenuptial agreements enforceable in Indiana?
Yes — Indiana is one of the strongest enforcement states in the country. Under IC 31-11-3-8, courts review unconscionability only at the time of signing, not at divorce. Changed circumstances during the marriage — even dramatic ones — do not give a court grounds to rewrite the deal (with the narrow exception of the extreme hardship floor for spousal support). The challenging party bears the full burden of proof, and there are only two grounds to invalidate: involuntary execution or unconscionability at execution. This single-review framework makes Indiana prenups significantly harder to challenge than in most states.
3. What makes a prenuptial agreement invalid in Indiana?
Only two grounds under IC 31-11-3-8: (1) the agreement was not executed voluntarily, or (2) the agreement was unconscionable when signed. Common practical failure points include last-minute signing close to the wedding (evidence of involuntary execution — see Fetters v. Fetters), grossly one-sided terms with no independent counsel, and vague language about asset protection that courts read narrowly (Thompson v. Wolfram — language protecting "retirement accounts" was held to cover only the balance at signing, not $897,046 in appreciation). Child custody or support provisions are unenforceable and can undermine the rest of the agreement.
4. Why is Indiana's one-pot rule a reason to get a prenup?
Indiana follows the "one-pot" theory under IC 31-15-7-4 — one of the most aggressive property division standards in the country. Without a prenup, courts presume that all property owned by either spouse is marital property subject to division. This includes assets you brought into the marriage, pre-marital retirement accounts, inheritances, and gifts. Unlike most equitable distribution states, Indiana does not automatically protect any category of pre-marital assets. A prenup is the only reliable way to keep what you came in with.
5. Can you waive alimony in an Indiana prenup?
Yes. Spousal support (Indiana's term — the state does not use "alimony") can be waived entirely in a prenuptial agreement. However, under IC 31-11-3-8(b), a court may override the waiver if enforcement would cause one spouse "extreme hardship under circumstances not reasonably foreseeable at the time of execution." The clearest trigger is a permanent disability leaving a spouse unable to earn income and at risk of public assistance eligibility. A large income disparity alone, or financial changes that were foreseeable at signing, are generally not enough to override the waiver.
6. Does Indiana require financial disclosure for a prenup?
No — Indiana is one of the few UPAA states with no statutory financial disclosure requirement. IC 31-11-3-8 omits the standard UPAA disclosure provision entirely, and Hunsberger v. Hunsberger (1995) confirmed that a prenup is valid even without detailed financial disclosure, as long as it was entered freely without fraud, duress, or misrepresentation. That said, providing full disclosure is a best practice that strengthens enforceability and eliminates a potential line of attack. We recommend disclosing all assets, debts, and income over $1,000 in attached exhibits.
7. How far in advance should I sign a prenup in Indiana?
Sign at least 60 days before the wedding. Give your spouse a minimum of two weeks to review the final draft with their own attorney. Indiana courts scrutinize last-minute signing as evidence of involuntary execution — one of only 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 will know you are choosing the right person to marry.
8. Do I need a lawyer for a prenup in Indiana?
Not legally required — Indiana law does not mandate independent counsel. But both spouses having separate attorneys is the single strongest evidence of voluntariness, and it dramatically reduces the risk of an involuntary-execution challenge. Fetters v. Fetters (2015) invalidated a prenup where one party had no counsel and could barely read the document. Use a template to cut drafting costs, but do not skip the attorney review.
9. Can a prenup protect my business in Indiana?
Yes, and Indiana's one-pot rule makes it essential. Without a prenup, your business — including its appreciation during the marriage — is presumed marital property subject to division. In DeHaan v. DeHaan (1991), the court awarded the wife 50% of a ~$134 million timeshare company despite a prenup limiting her to 20%, finding the marriage functioned as an economic partnership. The lesson: your prenup must explicitly classify the business and all future growth, goodwill, and income as separate property, and define a valuation method in the event of divorce.
10. How does an Indiana prenup protect retirement accounts?
A prenup can classify retirement accounts as separate property, but the language must be precise. In Thompson v. Wolfram (2020), the prenup listed the husband's retirement accounts (then worth $97,477) as separate property, but said nothing about future growth. By divorce, the accounts had grown to $994,523. The court held the prenup protected only the initial balance and split the $897,046 in appreciation as marital property. Your prenup should explicitly state that the account plus all future contributions, appreciation, and earnings remain separate property.
11. Can I get a postnuptial agreement in Indiana instead of a prenup?
Only in limited circumstances — this is one of Indiana's most important quirks. Indiana has no postnuptial agreement statute, and case law (Hall v. Hall, 2015) recognizes postnups only when entered to preserve a marriage that is otherwise facing divorce. You cannot execute a postnup during a stable marriage simply to organize financial matters the way you can in most other states. If your marriage is solid and you want these protections, a prenup before the wedding is your only window. Do not wait.
12. Can an Indiana prenup include child custody or child support?
No. Child support and custody provisions are unenforceable in a prenuptial agreement because Indiana courts determine these issues based on the best interests of the child at the time of divorce, not pre-agreed terms. Including them can also undermine the enforceability of the rest of the agreement. Leave them out entirely.
13. Does an Indiana prenup need to be notarized?
No — Indiana law requires only a writing signed by both parties (IC 31-11-3-4). No witnesses or notarization are mandated by statute. However, notarization authenticates signatures and deters fraud claims, and having both attorneys witness the signing provides the clearest evidence of voluntariness if the agreement is later challenged. We recommend executing the agreement with both attorneys present and notarizing it.
14. What happens to an Indiana prenup if circumstances change dramatically during the marriage?
Generally, the prenup still holds. Indiana reviews unconscionability only at the time of signing — not at divorce. Changed circumstances during the marriage do not give a court grounds to invalidate or rewrite the agreement. The sole exception is the spousal support safety valve: under IC 31-11-3-8(b), if a support waiver would cause "extreme hardship under circumstances not reasonably foreseeable at the time of execution," a court may require enough support to avoid that hardship. This is a narrow override, not a general fairness review — the clearest trigger is a spouse becoming permanently disabled and facing public assistance.