Pennsylvania Prenuptial Agreement
Pennsylvania prenuptial agreements are governed by 23 Pa.C.S.A. § 3106. Courts apply single review only — unconscionability is assessed at signing, not additionally at divorce — and treat prenups as ordinary business contracts between equal parties (Simeone, 1990). A prenup fails only if execution was involuntary, or if all three conditions exist: unconscionable at signing, no fair disclosure, and no knowledge of the other's finances. All three must be proven together. The alimony floor is public assistance eligibility — complete support waivers are enforceable above that threshold.
Bottom line: Pennsylvania earns an A grade. Single review, a strict three-part conjunctive challenge standard, a pure contract-law approach, and a concrete alimony floor make Pennsylvania one of the most reliably enforcing states in the country.
Pennsylvania Prenup Enforceability Rating: A
Pennsylvania Prenup Laws: Key Statutes Explained
Pennsylvania Statutes Title 23 Pa.C.S.A. Domestic Relations § 3106. Premarital agreements
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 signing, not at enforcement. Changed circumstances during marriage will not invalidate a valid prenup.
Unconscionability Standard
A prenup is invalid only if execution was not voluntary OR all three factors exist: (1) unconscionable at execution AND (2) no fair/reasonable disclosure without written waiver AND (3) challenging party lacked adequate knowledge of other's finances. Even highly one-sided agreements are upheld.
Spousal Support Public Assistance Minimum
Complete waivers of spousal support are enforceable. However, courts may invalidate alimony provisions if enforcement would leave a spouse destitute or eligible for public assistance. The public assistance threshold appears to be the practical minimum floor for spousal support in Pennsylvania prenups.
Timing
No statutory deadline exists, but recent Superior Court cases (Lewis v. Lewis 2020, 2023) suggest insufficient time to obtain counsel may constitute duress. Sign 60+ days before the wedding with 2-3 weeks review time to reduce challenge risk. Reach out to an attorney 4-6 months before the wedding.
Independent Counsel
Not required if waived in writing. However, independent counsel dramatically strengthens enforceability if challenged. Lack of opportunity to obtain counsel supports duress claims that could invalidate prenup.
Financial Disclosure
"Fair and reasonable disclosure" of assets, debts, and income, or can be waived in writing (both included).
High Burden to Challenge
Only two defenses allowed: involuntary execution, or inadequate disclosure without written waiver and lacking knowledge. Challenging party bears burden of proof. Fraud, duress, and coercion must be proven—allegations alone insufficient.
Child Support
Child support and custody clauses are unenforceable and could undermine the entire agreement. Do not include.
Pennsylvania's Unique Approach
Pennsylvania treats prenups largely as business contracts between equal parties and is nationally known for upholding agreements that might not hold up in other states.
Pennsylvania Prenuptial Agreement Court Cases
Lewis v. Lewis, 234 A.3d 706 (Pa. Super. 2020)
A post-nuptial settlement agreement was invalidated where the wife claimed she signed under duress while fearful of her husband's retribution and without opportunity to consult an attorney, establishing opportunity to seek counsel is critical for voluntary execution and prenup enforceability.
Simeone v. Simeone, 525 Pa. 392, 581 A.2d 162 (Pa. 1990)
The Pennsylvania Supreme Court upheld a prenuptial agreement that limited a 23-year-old unemployed nurse to $200 per week (maximum $25,000 total) from her neurosurgeon husband earning $90,000 annually with $300,000 in assets, establishing that prenuptial agreements are ordinary contracts enforceable under traditional contract principles without requiring independent counsel or judicial review of fairness, absent fraud, misrepresentation, or duress.
Lugg v. Lugg, 64 A.3d 1109 (Pa. Super. 2013)
A post-nuptial agreement was enforced despite the wife's claims of lack of asset disclosure, duress from daily pressure and one-and-a-half hours of negotiation pressure on the signing day, and unconscionability, reaffirming that parties can waive economic disclosure in writing and that post-nuptial agreements are evaluated under the same contract principles as prenuptial agreements following Simeone.
5-Step Checklist: How to Sign & Execute a Prenup in Pennsylvania
Step 1: Download and read the Pennsylvania prenuptial agreement
Start with our free template. It is written for Pennsylvania-specific statutes and case law under 23 Pa.C.S.A. § 3106 and Simeone v. Simeone, 525 Pa. 392 (1990). 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. Pennsylvania is nationally known for treating prenups as ordinary business contracts and upholding agreements that would not survive in many other states — but a line of recent Superior Court decisions (Lewis, Orsini) signals that ambushing a party with a last-minute agreement and no opportunity for counsel can still constitute duress.
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. Pennsylvania has no statutory minimum, and Simeone upheld a prenup signed the day before the wedding. That said, the post-Simeone trend in Lewis (2020) and Orsini (2023) treats surprise last-minute presentation — without any prior notice or opportunity to seek counsel — as potential duress. Adequate lead time eliminates this risk entirely.
Step 5: Sign with your attorneys and store the agreement
Execute the agreement with both attorneys present — attorneys are notaries, so their acknowledgment adds authentication and provides the clearest evidence of voluntariness if challenged. No attorneys present? Use a standalone notary at minimum. 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.
Pennsylvania 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 Pennsylvania?
Attorney-drafted from scratch: $1,500–$5,000+ per side. The smarter approach: start with our free Pennsylvania 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 Pennsylvania?
Yes — Pennsylvania earns an A rating and is one of the most prenup-friendly states in the country. Courts treat prenups as ordinary contracts under § 3106 and Simeone, applying no special judicial fairness review. Only two grounds can void an agreement. The challenger must prove their case by clear and convincing evidence — the highest civil standard. Pennsylvania has upheld deeply one-sided agreements, agreements signed the day before the wedding, and agreements without independent counsel on both sides.
What makes a prenup invalid in Pennsylvania?
Under § 3106, only two grounds: (1) execution was not voluntary — proven by clear and convincing evidence of fraud, duress, or coercion; OR (2) all three of the following proven simultaneously: unconscionable at execution AND no fair/reasonable disclosure AND no written waiver AND challenging party lacked adequate knowledge of the other's finances. Both grounds require the challenger to prove their case by clear and convincing evidence, making Pennsylvania one of the hardest states in which to void a prenup. The emerging caution: Lewis (2020) and Orsini (2023) suggest that presenting a prenup with no advance notice and no opportunity for the other party to seek counsel can support a duress finding even under this demanding standard. Leave child custody and support out entirely.
Do I need a lawyer to get a prenup in Pennsylvania?
No — Simeone explicitly rejected any requirement for independent counsel, calling it "paternalistic." Pennsylvania courts regularly enforce prenups where one or both parties were unrepresented. That said, both sides having separate attorneys eliminates the main duress risk identified in Lewis and Orsini, and strengthens the "voluntarily entered" element considerably. Use the template to cut drafting costs — don't skip the attorney.
What should a Pennsylvania prenuptial agreement include?
Our Pennsylvania 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, satisfying § 3106; our template also includes a written disclosure waiver as a backup, satisfying § 3106(b)(2)
- Privacy clause — keeps financial and personal details private, supporting a trusting relationship
Leave out child custody and support entirely — Pennsylvania courts will not enforce them and they can invalidate the rest of the agreement.
Does Pennsylvania's property law make a prenup important?
Yes. Pennsylvania is an equitable distribution state under 23 Pa.C.S. § 3502, where courts divide marital property based on 11 statutory factors with no automatic 50/50 split. A prenup replaces that entire framework with terms both parties agreed to in advance — and because Pennsylvania reviews prenups only at signing, those terms are locked in regardless of how circumstances change during the marriage.
How far in advance should I get a prenup in Pennsylvania?
Sign 60+ days before the wedding. Give your spouse at least two weeks to review with their own attorney. Pennsylvania has no statutory minimum, and Simeone enforced a day-before signing — but the post-2020 case law signals that surprise presentation with no opportunity for counsel creates duress risk. Prior notice, adequate review time, and access to independent counsel eliminate that risk cleanly. 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.
What is Simeone v. Simeone and why does it matter?
Simeone v. Simeone, 525 Pa. 392 (1990) is the foundation of Pennsylvania prenup law. The Pennsylvania Supreme Court upheld a prenup limiting a 23-year-old unemployed nurse to $200/week in support from her neurosurgeon husband — signed the day before their wedding without independent counsel. The court held that prenups are ordinary contracts, requiring no judicial review of fairness, no mandatory counsel, and no heightened scrutiny. The court specifically rejected older doctrines that treated women as needing contractual protection, citing Pennsylvania's Equal Rights Amendment. Simeone's principles are now codified in § 3106, making Pennsylvania one of the strongest states for prenup enforcement in the country.