Postnuptial Agreements in Buffalo & Williamsville, NY

What Is a Postnuptial Agreement?

A postnuptial agreement (or “postnup”) is a written contract entered into by spouses after they are already married. It defines how property, debts, and spousal support would be handled in the event of a divorce or death. In substance it is nearly identical to a prenuptial agreement — the difference is simply the timing.

New York law expressly authorizes these agreements under Domestic Relations Law §236(B)(3), which permits spouses to contract about the disposition of property and the amount and duration of maintenance, provided the agreement meets specific formal requirements. A valid postnup can give a couple clarity and security that an unwritten understanding never can.

Common Reasons Couples Sign a Postnup

People pursue postnuptial agreements for many legitimate reasons:

• A change in finances — One spouse receives a large inheritance, gift, or business interest and wants to clarify how it will be treated.
• Starting or protecting a business — A spouse who launches a company (or whose business partners require it) may want to keep the business separate and shield it from division.
• Rebuilding after a rough patch — After financial betrayal, hidden debt, or infidelity, a postnup can rebuild trust by putting clear expectations in writing.
• One spouse leaving the workforce — When a spouse steps back to raise children, the couple may want to define maintenance or compensation up front.
• Blended families and estate planning — Spouses with children from prior relationships often use a postnup to coordinate inheritance and protect those children.
• Putting an oral understanding in writing — Couples who married without a prenup but always intended certain arrangements can formalize them.

Requirements for an Enforceable Postnup in New York

To stand up in court, a New York postnuptial agreement generally must be:

• In writing — Oral agreements between spouses about property are not enforceable.
• Signed and acknowledged — Both spouses must sign, and both signatures must be acknowledged before a notary in the same form required to record a deed.
• Supported by full disclosure — Each spouse should fully and honestly disclose income, assets, and debts. Hidden assets are a leading reason agreements are later thrown out.
• Free of fraud, duress, and overreaching — Neither spouse can be coerced or misled into signing.
• Not unconscionable — A court may decline to enforce terms that are grossly unfair under the circumstances.

The single best protection is for each spouse to have his or her own attorney. Independent counsel makes it far harder for either party to later claim they did not understand what they signed.