A prenuptial agreement protects the marriage as much as the assets.

A prenuptial agreement is rarely an unromantic act. It is, more accurately, a structured conversation between two people about money, history, family obligations, and what they each consider fair — held while they are still on the same side of the table. The agreement itself is the written record of that conversation. The conversation is the point.

Relationship agreements in New Jersey

A prenuptial or postnuptial agreement is a legal contract between spouses or prospective spouses that defines how financial matters will be handled during the marriage and in the event of divorce. New Jersey enforces prenuptial agreements under the Uniform Premarital and Pre-Civil Union Agreement Act, N.J.S.A. 37:2-31source through 37:2-41, which sets out the requirements for validity, the procedures for execution, and the limited grounds for invalidation.

At Simon Law Group, our attorneys draft, review, and litigate prenuptial and postnuptial agreements for New Jersey clients. Whether you are planning a marriage or seeking to formalize financial arrangements within an existing one, we focus on the process and terms that matter later: disclosure, voluntariness, timing, counsel review, and clear drafting.

Prenuptial Agreements

A prenuptial agreement (also called a premarital agreement or "prenup") is executed before the marriage takes place. It allows the parties to define their respective rights and obligations regarding property, debts, spousal support, and other financial matters in advance of the marriage. Prenuptial agreements are particularly valuable for individuals who bring significant assets, business interests, or prior family obligations into a marriage.

What a Prenuptial Agreement Can Address

• The identification and classification of separate property that each party brings into the marriage
• How income and assets acquired during the marriage will be treated in the event of divorce
• The division of property upon divorce, including real estate, investments, and retirement accounts
• Spousal support (alimony) provisions, including the amount, duration, or waiver of alimony
• Responsibility for debts incurred before and during the marriage
• Rights to business interests and professional practices
• Inheritance rights and estate planning provisions
• Any other matter that does not violate public policy or criminal law

What a Prenuptial Agreement Cannot Address

Under New Jersey law, prenuptial agreements may not include provisions that negatively affect the rights of children. Specifically, a prenuptial agreement cannot:

• Predetermine child custody arrangements
• Limit or waive child support obligations
• Include provisions that encourage divorce

Requirements for a valid prenuptial agreement

For a prenuptial agreement to be enforceable in New Jersey, it must satisfy the requirements of N.J.S.A. 37:2-34source and be evaluated against the enforceability standards in N.J.S.A. 37:2-38source.

Essential Requirements

• Written form — The agreement must be in writing. Oral prenuptial agreements are not enforceable.
• Voluntary execution — Both parties must enter into the agreement voluntarily, free from coercion, duress, or undue influence. An agreement signed under pressure, particularly close to the wedding date, may be challenged as involuntary.
• Full financial disclosure — Both parties must provide a complete and accurate disclosure of their assets, liabilities, and income. Failure to disclose material financial information is one of the most common grounds for invalidating a prenuptial agreement.
• Independent legal counsel — While not always required, separate counsel for each party usually makes the process more defensible because each person has an independent opportunity to understand the agreement.
• Conscionability — The agreement must not be unconscionable at the time of enforcement. An agreement that leaves one spouse destitute while the other retains substantial wealth may be deemed unconscionable.

Timing

There is no statutory minimum time before the wedding that a prenuptial agreement must be signed. However, agreements presented to one party shortly before the wedding are more susceptible to claims of coercion or involuntariness. Contact counsel as soon as the marriage and asset-planning questions are real so both parties have time for review, consultation with counsel, and informed consideration.

Postnuptial Agreements

A postnuptial agreement serves the same general purpose as a prenuptial agreement but is executed after the marriage has taken place. Postnuptial agreements are governed by general contract law principles and are subject to heightened scrutiny by New Jersey courts because of the fiduciary relationship that exists between spouses.

When a Postnuptial Agreement May Be Appropriate

• The parties did not execute a prenuptial agreement before the marriage
• One spouse is starting a new business and wants to protect it from equitable distribution claims
• The parties have experienced marital difficulties and want to define terms for reconciliation
• One spouse has received a significant inheritance or gift and wants to preserve its separate character
• The parties' financial circumstances have changed substantially since the marriage
• The parties wish to update or replace an existing prenuptial agreement

Enforceability of Postnuptial Agreements

New Jersey courts apply a stricter standard of review to postnuptial agreements than to prenuptial agreements. Because spouses owe each other a fiduciary duty, the court will closely examine whether both parties had full knowledge of the relevant facts, whether the agreement was entered into voluntarily, and whether the terms are fair and equitable. The burden of proving the validity of a postnuptial agreement is generally higher than for a prenuptial agreement.

Challenging a Prenuptial or Postnuptial Agreement

A party seeking to invalidate a prenuptial or postnuptial agreement in New Jersey may raise several grounds, including:

• Lack of voluntary consent — The agreement was signed under duress, coercion, or undue influence
• Inadequate financial disclosure — One party failed to provide a complete and accurate picture of their financial situation
• Unconscionability — The terms are so one-sided as to be fundamentally unfair
• Fraud or misrepresentation — One party made material misrepresentations to induce the other party to sign
• Lack of independent counsel — While not dispositive, the absence of independent legal representation strengthens other challenges
• Procedural deficiencies — The agreement was not properly executed or fails to meet statutory requirements

Frequently asked questions

Talk to a New Jersey relationship-agreement attorney

Whether you are drafting a prenuptial agreement, negotiating a postnuptial agreement, or evaluating whether to enforce or challenge an existing agreement, the timing and quality of representation matter. Start with a consultation request. Call (800) 709-1131 or use the contact form for a consultation request. Your request is confidential, and someone from the firm will follow up promptly.

Related family-law practice areas

• Family Law — pillar — the broader NJ family-court framework, including divorce, custody, support, and the procedural infrastructure
• Divorce — where a prenup or postnup most often becomes operative; equitable distribution analysis applied to the agreement's terms
• Property Settlement Agreements — the post-divorce contractual companion to prenups; PSA enforcement, interpretation, and modification work
• Post-Judgment Modifications — modifying alimony, custody, support, and parenting-time orders under the Lepis substantial-change-in-circumstances framework
• Adoption — stepparent, second-parent, and adult adoption under the NJ Adoption Act