Topic guide · 28 articles
Will your prenup hold up?
What makes a prenup valid, what courts throw out, which clauses work, and how to change an agreement after the wedding.
01
What makes a prenup enforceable?
Most prenups that fail do so because of how they were made, not what they say. Start with the checklist for an agreement that holds up.
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What Makes a Prenup Enforceable? The Ironclad Checklist
A prenup holds up when both partners disclosed fully, signed voluntarily with time to spare, had independent counsel, and met state formalities.
- Do Prenups Actually Work and Hold Up in Court? What Enforceable Means in Practice Do prenups hold up in court? Yes, in every state, when they are in writing, signed freely, and backed by full financial disclosure. Here is why the rest fail. Read article →
- Why Last Minute Prenups Get Challenged: Timing, Duress, and How Early to Start A last-minute prenup is not automatically invalid, but it is more vulnerable to challenge. Courts generally look at whether both people signed voluntarily, had enough time to review the agreement, received proper financial disclosure, and followed state-specific rules. Read article →
- Why is full financial disclosure important for a prenup? Full financial disclosure ensures fairness, transparency, legal validity, and prevents future disputes in prenups. Read article →
- How Financial Disclosure Works in a Prenup When One Partner Is Self-Employed Inadequate financial disclosure is the most common reason a prenup gets challenged, and self-employed income is the hardest kind to document cleanly. Read article →
- What Does Full Financial Disclosure Require When a Partner Has Assets Overseas? Under the Uniform Premarital Agreement Act, a prenup can be set aside if a spouse was not given fair and reasonable disclosure of the other's property, and that duty covers foreign assets too. Read article →
- Does a Prenup Have to Be Filed With Your Marriage License? Where a Prenup Actually Lives A prenup is a private contract that becomes effective upon marriage under the Uniform Premarital Agreement Act; it is not filed with your marriage license or with any court to be valid. Read article →
- Is a prenup public record? Most people want to keep that document private and it depends on the state you get married in. Read article →
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02
What makes a prenup invalid or unfair?
Courts can set a prenup aside on a short list of grounds, and an uneven split on its own is rarely one of them. Start with the grounds courts use.
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What Makes a Prenup Invalid? The Grounds Courts Use
Under the Uniform Premarital Agreement Act, adopted by 29 states plus the District of Columbia, a prenup is unenforceable only if the challenger proves it was signed involuntarily, or was unconscionable and made without fair financial disclosure.
- Can a Prenup Be Unfair on Purpose? What a 90/10 Split Tells You About Fairness Limits A prenup can favor one partner without being invalid. Under the Uniform Premarital Agreement Act, the bigger enforcement risks are lack of voluntary consent, unconscionability at signing, and inadequate financial disclosure. Read article →
- What Is a Fair Prenup? How to Tell If Your Agreement Is One-Sided (2026) Under the Uniform Premarital Agreement Act, courts can refuse to enforce a prenup that was unconscionable when signed, which is the legal standard for "one-sided." Read article →
- Are Prenups Always Lopsided? Explore the intricacies of marital agreements and their effects on financial fairness. Read article →
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Licensed in your state, $3,500 flat for the couple. No retainers, no hourly bills.
03
What can you put in a prenup?
Most prenups are built from the same core clauses, and some popular extras carry little legal weight. Start with what a typical prenup includes.
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Prenup Clauses Explained: The Typical Prenup Terms Most Couples Include, and the Ones They Miss
Prenup clauses fall into three groups: the core terms nearly every agreement includes, the ones couples add for their own situation, and the ones courts will not enforce. A plain-English look at each, per the Uniform Law Commission's model act.
- What Does a Prenup Look Like? A Prenup Example, Section by Section A prenup example, section by section: seven annotated sample clauses (separate and marital property, debt, spousal support, a business interest, inheritance, and a sunset review) inside the structure every prenup shares: recitals, financial disclosure schedules, estate waivers, a governing-law clause, and signatures. Read article →
- Types of Prenuptial Agreements: Which Kind of Prenup Fits Your Marriage The main types of prenuptial agreements are separate-property, shared-growth, business-owner, debt-protection, estate-coordination, spousal-support and sunset prenups, and the right one depends on your assets, your state and what you want the agreement to do. Read article →
- The Complete Prenup Checklist: What to Cover Before You Sign A complete prenup checklist: the conversation to have first, the disclosure both partners owe, 72 decisions to make together, and what your state requires. Read article →
- First Prenups & Infidelity Clauses: What Couples Need to Know Thinking about adding an infidelity clause to your prenuptial agreement, but worried whether it will actually work? Many couples want their prenup to say “if you cheat, you pay,” yet most courts are skeptical of these provisions and often refuse to enforce them. An online prenuptial agreement with First focuses instead on clear, enforceable terms that protect both partners. Read article →
- Can a Prenup Have a Cheating Clause? You can write an infidelity clause into a prenup. Enforcing it is another matter: the clause has to be a term your state allows and conduct you are permitted to prove. Read article →
- How Lifestyle and Conduct Clauses Actually Hold Up: Weight, Social Media, and Behavior Provisions Lifestyle clauses on weight, social media, or cheating are the hardest prenup terms to enforce. Whether one holds up depends on your state and the drafting. Read article →
- Prenup Social Media Clauses: What Conduct Provisions Can and Cannot Enforce A prenup social media clause is a private contract term, and courts weigh it against free speech, so narrow drafting decides whether it holds. Read article →
- Can You Put a Confidentiality or Privacy Clause in a Prenup? What NDAs and Carve-Outs Actually Do A prenup can include a confidentiality clause, an NDA-style privacy provision, or an intellectual-property carve-out, but under N.Y. Dom. Rel. Law § 236(B)(3) and comparable state contract rules, a court decides case-by-case whether each holds. Read article →
- Formalizing Cultural Traditions in Prenups Blending cultural traditions with modern legal frameworks can be meaningful and complex, especially for property division. Read article →
- Fur-ever Love: Why Your Pets Need a Prenup Too! In most states a pet is property in a divorce. Illinois, California, and New York now weigh the animal's care, and a prenup can settle the question first. Read article →
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04
Can you change a prenup after the wedding?
A prenup can be changed after the wedding, but only deliberately and in writing. Start with how couples revisit an agreement.
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Is a Prenup a "Living Document"? When and Why Couples Revisit an Agreement After Marriage
A prenup is not set in stone: under the Uniform Premarital Agreement Act, a signed prenup can be amended or revoked after marriage by a written agreement signed by both parties.
- Do Prenups Expire? Sunset Clauses and the 10-Year Myth, Explained A prenup does not expire on its own; under the Uniform Premarital Agreement Act, it stays in force for the whole marriage unless it contains a sunset clause or both partners revoke it in writing. Read article →
- What if things change after I get my prenup? Consider potential life changes when creating your prenup. First helps couples address evolving needs and priorities. Read article →
- Prenup vs Postnup: What's the difference? Both prenups and postnups protect assets and outline wishes for divorce or death. Learn the key differences between them. Read article →
- How might my prenup be different if I’ve been married before? Been married before? Your prenup now has to account for a divorce decree, children, partly earned retirement accounts, and an estate plan naming someone else. Read article →
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