Common Law Prenup Template for the United States

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What is a Common Law Prenup?

A Common Law Prenup is essential for couples seeking to establish clear financial and property rights before marriage in the United States. This agreement is particularly important for protecting pre-existing assets, business interests, and establishing clear guidelines for property division. The document must comply with both federal frameworks like the Uniform Premarital Agreement Act and state-specific requirements. It typically includes comprehensive financial disclosures, property division terms, and may address spousal support. Independent legal counsel for both parties is typically required for enforceability.

Frequently Asked Questions

Are prenuptial agreements legally enforceable in all US states?

Yes, prenuptial agreements are legally binding in all 50 US states, but enforcement depends on meeting specific requirements. Most states follow the Uniform Premarital Agreement Act (UPAA), which requires voluntary execution, full financial disclosure, and absence of unconscionable terms. Each state has additional requirements, so compliance with your specific state's marriage laws is essential for enforceability.

Can we get married without a prenuptial agreement if we started one?

Yes, you can proceed with marriage without completing a prenuptial agreement, but you'll lose the legal protections it would have provided. Without a prenup, your state's default marital property laws will govern asset division and spousal support in case of divorce. If you have significant pre-marital assets or business interests, you may want to consider a postnuptial agreement after marriage instead.

How far in advance before the wedding should we sign a prenup?

Most legal experts recommend signing a prenuptial agreement at least 30-60 days before the wedding date. This timeline allows adequate time for negotiation, legal review, and revision without appearing coercive. Signing too close to the wedding (especially within a week) can lead to claims of duress, which could invalidate the agreement in court.

How is a prenuptial agreement different from a cohabitation agreement?

A prenuptial agreement is specifically for couples planning to marry and governs rights during marriage and potential divorce, while a cohabitation agreement is for unmarried couples living together. Prenups must comply with the Uniform Premarital Agreement Act and state marriage laws, whereas cohabitation agreements follow general contract law. Prenups automatically become effective upon marriage, while cohabitation agreements are effective immediately upon signing.

How long does it typically take to create a valid prenuptial agreement?

Creating a comprehensive prenuptial agreement usually takes 4-8 weeks from start to finish. This includes time for financial disclosure, initial drafting (1-2 weeks), review by both parties' attorneys, negotiations and revisions (2-4 weeks), and final execution. Complex financial situations involving businesses or multiple properties may require additional time for proper valuation and documentation.

Do we have to disclose all assets and debts in a prenuptial agreement?

Yes, full and fair financial disclosure is a legal requirement for enforceable prenuptial agreements under the Uniform Premarital Agreement Act. Both parties must provide complete information about assets, debts, income, and financial obligations. Hiding assets or providing incomplete disclosure can invalidate the entire agreement and may result in penalties during divorce proceedings.

Can a prenuptial agreement be challenged or invalidated after marriage?

Yes, prenuptial agreements can be challenged in court on several grounds including fraud, duress, unconscionability, lack of proper disclosure, or failure to follow state-specific execution requirements. However, properly drafted prenups that comply with the Uniform Premarital Agreement Act and state laws are generally upheld by courts. The challenging party bears the burden of proving the agreement should be invalidated.

Reviewed by

Swetha Meenal

Legal Engineer, GenieAI

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A lawyer, legal researcher and legal tech founder, Swetha has built AI products deployed inside Tier 1 firms and enterprises. She ensures GenieAI's alignment with the latest regulation and executes testing on the legal robustness of Genie output.

Reviewed by

Imad Mohammed Nazar

Legal Engineer, GenieAI

Imad Mohammed Nazar profile photo

A Skadden-trained M&A lawyer, Imad advised on cross-border transactions and contractual risk before moving into legal AI. He reviews GenieAI's output for compliance and enforceability across our 150+ supported jurisdictions, as well as facilitating external benchmarking.

Jurisdiction

United States

Publisher

GenieAI

Sector

Business

Cost

Free to use

Last updated

About the Common Law Prenup

A Common Law Prenup is a legally binding agreement that allows you to establish financial and property rights before marriage in the United States. This document protects your assets, clarifies property ownership, and sets expectations for financial responsibilities during marriage and potential divorce proceedings.

When do you need this document?

You need a prenuptial agreement when either party brings significant assets, business interests, or debts into the marriage. This is particularly important if you own real estate, have substantial savings or investments, operate a business, or have children from previous relationships who need inheritance protection. High-earning professionals, entrepreneurs, and individuals with family wealth also commonly use prenups to maintain clarity around financial obligations and preserve separate property rights.

Key legal considerations

Your prenuptial agreement must include complete financial disclosure from both parties, covering all assets, liabilities, and income sources. The document should clearly define separate versus marital property, establish how future assets will be classified, and address potential spousal support obligations. Both parties must enter the agreement voluntarily, with sufficient time for review, and preferably with independent legal counsel. The terms cannot be unconscionable or heavily favor one party, and certain rights like child support cannot be waived under federal law.

Legal requirements in United States

Under the Uniform Premarital Agreement Act, adopted by most states, your prenup must be in writing and signed by both parties before marriage. Many states require notarization, and some mandate witness signatures for validity. The agreement becomes effective upon marriage and must comply with your state's specific laws regarding community property or equitable distribution. States like California, Texas, and New York have additional requirements for enforceability, including mandatory waiting periods and specific disclosure standards. Federal laws under ERISA govern how retirement accounts can be addressed, while Social Security benefits generally cannot be modified through prenuptial agreements.

GOVERNING LAW

Applicable law

This Common Law Prenup is drafted to comply with United States law. Key legislation includes:

Uniform Premarital Agreement Act (UPAA): Federal framework that provides guidelines for validity and enforceability of prenuptial agreements, including requirements for execution and content. Adopted by many US states.

State-Specific Marriage Laws: Individual state regulations governing marriage, including differences between community property states and equitable distribution states, plus state-specific requirements for prenup validity.

Federal Tax Laws: Internal Revenue Code considerations affecting how assets and income are treated for tax purposes in a prenuptial agreement.

ERISA Regulations: Federal laws governing retirement accounts and how they can be handled in prenuptial agreements.

Social Security Legislation: Federal regulations regarding Social Security benefits and how they interact with prenuptial agreements.

Financial Disclosure Requirements: Legal requirement for both parties to provide complete and accurate disclosure of all assets, debts, and income before signing the agreement.

Independent Legal Counsel Requirement: Legal consideration that both parties should have the opportunity to seek independent legal advice before signing.

Execution Requirements: Legal requirements for proper execution including voluntary signing, reasonable timing before marriage, written format, and proper notarization.

Child-Related Restrictions: Legal limitations preventing prenups from determining child custody or waiving child support obligations.

Public Policy Constraints: Legal restrictions preventing provisions that encourage divorce or violate public policy, ensuring the agreement remains within acceptable legal bounds.

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