Postnuptial Agreements

Marriage is both a personal commitment and a financial partnership. As circumstances change over the course of a marriage, many couples find it prudent to clarify their financial rights and responsibilities in writing. A postnuptial agreement allows spouses to do exactly that—after they are already married. For New York couples seeking to protect assets, plan for the future, or simply bring greater clarity to their financial relationship, a properly drafted postnuptial agreement can offer significant peace of mind.

Our firm helps clients throughout New York create enforceable postnuptial agreements tailored to their unique situations. Below, we explain what these agreements are, how they function under New York law, and why working with an experienced attorney is essential to ensuring your agreement holds up if it is ever challenged.

What Is a Postnuptial Agreement?

A postnuptial agreement is a legally binding contract entered into by spouses after they marry. It functions much like a prenuptial agreement, but the timing is different. While a prenuptial agreement is signed before the wedding, a postnuptial agreement is executed at any point during the marriage—whether weeks, months, or decades after the couple says "I do."

These agreements typically address how a couple's property, income, debts, and other financial matters will be handled, both during the marriage and in the event of divorce or death. By setting clear expectations in advance, spouses can reduce uncertainty and potential conflict down the road.

Postnuptial agreements are expressly recognized under New York law. Domestic Relations Law § 236(B)(3) authorizes agreements made "during marriage" and provides that such agreements are valid and enforceable when properly executed. This statutory foundation gives New York couples a clear legal path to creating these contracts.

Common Reasons Couples Consider a Postnuptial Agreement

Spouses pursue postnuptial agreements for a wide variety of reasons. Some of the most common include:

• Changes in financial circumstances: A spouse may receive a significant inheritance, start a business, or experience a substantial increase in income that they wish to address.
• Protecting a business: An entrepreneur may want to shield a closely held company from being divided or disrupted in a divorce.
• Estate planning: Couples, particularly those in second marriages, may use postnuptial agreements to protect children from prior relationships and coordinate with their broader estate plan.
• Addressing debt: One spouse may want to ensure they are not held responsible for the other's separate debts.
• Reconciliation after marital difficulties: Some couples use a postnuptial agreement to rebuild trust and establish clear financial terms following a period of conflict.
• Clarifying separate versus marital property: Defining ownership of specific assets can prevent disputes later.

Whatever the motivation, a postnuptial agreement provides a structured way for spouses to align their expectations and protect their interests.

What Can a Postnuptial Agreement Cover?

New York permits considerable flexibility in what spouses may include in a postnuptial agreement. Common provisions address:

• Division of property: Identifying which assets are separate property and which are marital, and establishing how property will be divided if the marriage ends.
• Spousal support (maintenance): Determining whether one spouse will pay maintenance, and if so, the amount and duration—subject to certain legal limitations.
• Debt allocation: Specifying responsibility for existing and future debts.
• Inheritance and estate rights: Waiving or defining rights to a spouse's estate, including the right of election under New York law.
• Business interests: Protecting ownership and operation of a business from division.
• Management of finances during marriage: Outlining how income, bank accounts, and expenses will be handled.

Limitations on What These Agreements Can Address

While postnuptial agreements offer broad flexibility, there are important limits. Most significantly, provisions concerning child custody and child support cannot be predetermined in a way that binds a court. New York courts always retain the authority to decide these matters based on the best interests of the child at the time of any dispute. Any attempt to waive or fix child support in advance is generally unenforceable.

Additionally, provisions that are unconscionable, illegal, or that encourage divorce may be struck down by a court. An experienced attorney can help ensure that your agreement focuses on enforceable terms.

Requirements for a Valid Postnuptial Agreement in New York

For a postnuptial agreement to be enforceable in New York, it must meet specific legal requirements. Failing to satisfy these formalities can render the entire agreement void. Key requirements include:

Written and Properly Executed

Under New York law, the agreement must be in writing, signed by both parties, and acknowledged in the same manner as a deed—that is, signed before a notary public. Oral agreements are not enforceable. The acknowledgment requirement is taken seriously by New York courts, and an agreement lacking proper acknowledgment can be invalidated even years after it was signed.

Voluntary Agreement

Both spouses must enter into the agreement voluntarily and without coercion, duress, or undue pressure. If one spouse can show they were forced or unduly pressured into signing, a court may set the agreement aside.

Full and Fair Financial Disclosure

Each spouse should provide a complete and honest disclosure of their assets, income, and liabilities. While New York does not always require formal disclosure for prenuptial agreements, courts scrutinize postnuptial agreements closely because of the heightened trust relationship that exists between married spouses. Concealing or misrepresenting financial information can be grounds for invalidating the agreement.

Fairness and Conscionability

The terms of the agreement must not be unconscionable. New York courts may refuse to enforce an agreement that is so one-sided or unfair that it shocks the conscience, particularly if it was unfair at the time it was made or has become so by the time enforcement is sought.

Independent Legal Representation

While not strictly required by statute, it is strongly recommended that each spouse have their own independent attorney. When both parties have separate counsel, it becomes far more difficult for either spouse to later claim they did not understand the agreement or were pressured into signing. Independent representation is one of the most effective safeguards for ensuring an agreement's enforceability.

How Courts in New York Evaluate Postnuptial Agreements

New York courts generally favor enforcing agreements that spouses have voluntarily entered into. However, because spouses owe each other a duty of trust and confidence, courts apply heightened scrutiny to postnuptial agreements compared to ordinary commercial contracts.

When reviewing a challenged agreement, a court may consider factors such as:

• Whether both parties had the opportunity to consult independent counsel
• Whether there was full financial disclosure
• The relative bargaining power of the spouses
• Whether the terms were fair when the agreement was signed
• Whether the circumstances surrounding the signing suggest fraud, duress, or overreaching

If a court finds that the agreement was the product of fraud, duress, or overreaching, or that it is manifestly unfair, it may decline to enforce some or all of its provisions. This is precisely why careful drafting and proper procedure are so important.

Postnuptial Agreements Versus Prenuptial Agreements

The primary distinction between these two types of agreements is timing. The following table summarizes the key differences:

Feature	Prenuptial Agreement	Postnuptial Agreement
When signed	Before marriage	During marriage
Legal authority	Recognized under New York law	Recognized under New York law
Level of judicial scrutiny	High	Often higher, due to spousal trust duty
Execution requirements	Written, signed, acknowledged	Written, signed, acknowledged

Because spouses already share a confidential relationship at the time a postnuptial agreement is signed, New York courts may examine these agreements more closely to ensure fairness. This makes meticulous attention to legal formalities even more critical.

The Drafting Process: What to Expect

Creating a sound postnuptial agreement involves several steps. Understanding the process can help you approach it with confidence:

1. Initial consultation: You meet with an attorney to discuss your goals, concerns, and financial situation.
2. Financial disclosure: Both spouses gather and exchange documentation of assets, income, and liabilities.
3. Negotiation of terms: The spouses, with their attorneys, negotiate the substantive provisions of the agreement.
4. Drafting: The attorney prepares a written agreement reflecting the agreed-upon terms.
5. Review: Each spouse reviews the draft with their own counsel and requests any necessary revisions.
6. Execution: Both spouses sign the agreement before a notary public to satisfy the acknowledgment requirement.

Taking the time to follow each step carefully helps create an agreement that is both fair and durable.

Can a Postnuptial Agreement Be Changed or Revoked?

Yes. Spouses who have signed a postnuptial agreement can later modify or revoke it, provided both parties agree. Any amendment or revocation should be made in writing and executed with the same formalities as the original agreement—meaning it must be signed and acknowledged before a notary. Informal or verbal modifications are unlikely to be enforceable. If your circumstances change significantly, it is wise to revisit your agreement with an attorney to ensure it still reflects your intentions.

Why Work With Our New York Postnuptial Agreement Attorneys

Postnuptial agreements involve nuanced legal requirements, and even small mistakes can have serious consequences. A poorly drafted or improperly executed agreement may be challenged successfully, leaving you exposed at the very moment you sought protection. Our attorneys focus on creating clear, comprehensive, and enforceable agreements designed to withstand scrutiny.

When you work with our firm, you can expect:

• Careful attention to New York's execution and acknowledgment requirements
• Thorough financial disclosure to support enforceability
• Agreements tailored to your specific goals and family situation
• Honest guidance about what the law allows and what it does not
• A confidential and respectful approach to sensitive family matters

We understand that discussing finances and contingency planning within a marriage can feel delicate. Our goal is to help you protect what matters most while preserving the trust and stability of your relationship.

Contact Us to Discuss Your Postnuptial Agreement

If you are considering a postnuptial agreement in New York, the most important step you can take is to consult with a knowledgeable attorney early in the process. A well-crafted agreement can provide clarity, protection, and peace of mind for both spouses.

Our experienced family law attorneys are ready to answer your questions and guide you through every stage of the process. Contact our office today to schedule a confidential consultation and learn how a postnuptial agreement can serve your needs and protect your future.

You can contact us by phone at 212-233-1233 or by email at [email protected].