Contract Between Husband and Wife in New York: Types and Limits

In New York, a husband and wife can sign a legally binding contract with each other covering property, spousal support, inheritance rights, and other financial matters. Domestic Relations Law Section 236(B)(3) authorizes three main kinds of spousal agreements: prenuptial agreements signed before the wedding, postnuptial agreements signed during the marriage, and separation agreements used when spouses decide to live apart. Whichever form the contract takes, it has to be written, signed, and notarized in a specific way, backed by honest financial disclosure, and free of terms the courts refuse to enforce.¹

The Three Kinds of Contracts Spouses Can Sign

Which contract you need depends on where you are in the marriage.

A prenuptial agreement is signed before the wedding. It usually addresses how assets and debts will be divided if the marriage ends, sets terms for spousal support, defines what counts as separate versus marital property, and can waive inheritance rights.

A postnuptial agreement covers the same ground but is signed after the marriage has begun. It can also formalize financial arrangements the couple wants in place during the marriage itself. New York courts apply the same level of scrutiny to prenuptial and postnuptial agreements.²

A separation agreement is for spouses who have decided to live apart. It spells out property division, support obligations, custody arrangements, and debt allocation. Living separately under a properly executed separation agreement for at least one year is itself a ground for divorce under Domestic Relations Law Section 170(6), and the agreement must be filed with the county clerk in the county where either spouse resides to be used that way.³⁴

What Makes a Spousal Contract Legally Valid

New York imposes formalities that, if missed, void the entire agreement. Under DRL 236(B)(3), a contract between spouses is valid in a matrimonial action only if it is in writing, signed by both parties, and acknowledged in the same manner required for recording a deed to real property.¹

Acknowledgment means each spouse appears before a notary public and confirms they signed the document voluntarily. An unacknowledged agreement is invalid, even if both signatures are genuine.⁵ Spouses do not need to appear before the same notary or sign at the same time. The agreement becomes binding once both signatures are notarized.⁶ Notaries in New York may charge up to $2.00 per acknowledgment.⁷

Full Financial Disclosure

Disclosure is the single biggest factor in whether a spousal contract survives a challenge. Courts expect both spouses to lay their finances bare before signing. If one spouse hides assets or understates net worth, the other cannot meaningfully evaluate what they are giving up, and that imbalance alone can void the deal.

In Petracca v. Petracca (2012), the Appellate Division struck down a postnuptial agreement where the husband’s disclosures undervalued his net worth by at least $11 million. The court found the terms manifestly unfair given the disparity in the parties’ actual wealth, and the inaccurate disclosures prevented the wife from understanding the financial impact of what she signed.⁸

No statute lists a mandatory checklist, but in contested matrimonial cases courts expect tax returns with all schedules, W-2s, and 1099s, bank and brokerage account statements, credit card statements, and a sworn statement of net worth.⁹ Following similar practices when negotiating a prenuptial or postnuptial agreement builds the strongest record that both sides had the information they needed.

Capacity, Consent, and Legal Counsel

Both spouses have to understand what they are agreeing to. A person who is a minor, seriously impaired by mental illness, or so intoxicated they cannot grasp the consequences may lack the capacity to enter the contract. Without capacity at signing, a court can void the agreement entirely.

Consent must also be genuine. In Christian v. Christian (1977), the Court of Appeals held that spousal agreements must be “free from the taint of fraud and duress.”² Coercion between spouses does not always look like business pressure. Threats to end the marriage, leveraging financial dependence, and emotional manipulation all count. In Petracca, the wife testified her husband “bullied” her into signing by threatening they would not have children and the marriage would end if she refused.⁸

Independent legal counsel is not technically required, but skipping it is risky. In Gottlieb v. Gottlieb (2016), the Court of Appeals noted that when a spouse had independent counsel, knowingly ignored that attorney’s advice, and signed anyway, no inference of overreaching existed.¹⁰ Without counsel, a spouse challenging the agreement can more easily argue they did not understand what they signed. The safest approach is separate attorneys for each spouse and enough time between review and signing to think it through.

Terms Courts Will Not Enforce

Some things do not belong in a spousal contract, no matter how carefully drafted.

Child Support

Parents can agree on child support amounts different from the standard formula, but only if the agreement acknowledges both parents’ awareness of the Child Support Standards Act and explains why the agreed amount differs from the formula result.¹¹ Attempts to waive child support entirely, or to set an amount so low it effectively does the same thing, will not survive review. Child support belongs to the child, not to the parents to bargain away.

Unconscionable Terms

Courts will void terms so one-sided they “shock the conscience and confound the judgment of any person of common sense,” the standard described in Gottlieb.¹⁰ An agreement that leaves one spouse destitute while the other keeps everything invites judicial intervention, especially if the disadvantaged spouse lacked counsel or complete financial information.

Incentives to Divorce or Punish Behavior

Clauses that create a financial incentive for one spouse to end the marriage may be struck as contrary to public policy. Provisions imposing financial penalties for infidelity or other personal conduct tend to fare poorly as well. New York moved to no-fault divorce in 2010, and courts are generally uninterested in policing marital behavior through contract penalties.

Religious Barriers to Remarriage

Domestic Relations Law Section 253 addresses situations where a religious tradition prevents one spouse from remarrying after divorce unless the other takes a specific step, such as providing a Jewish religious divorce (a “Get”). A spouse filing for divorce must allege they have removed, or will remove before final judgment, any barrier to the other spouse’s remarriage that is solely within their power to remove, and no final divorce judgment can be entered without a sworn statement to that effect unless the other spouse waives the requirement in writing.¹² Spousal agreements can include provisions addressing this obligation, and courts will enforce them.

Inheritance Rights and Retirement Benefits

Spousal contracts often waive inheritance, but two separate bodies of law control what can actually be given up.

Waiving the Elective Share

Under New York’s Estates, Powers and Trusts Law Section 5-1.1-A, a surviving spouse has the right to claim a portion of the deceased spouse’s estate regardless of what the will says. A spouse can waive this “right of election” in a marital agreement, but the waiver must be in writing, signed, and acknowledged in the same manner required for recording a deed. It does not matter whether the waiver was signed before or after the marriage, or whether the spouse received anything in exchange.¹³ A general waiver of “all rights in the estate of the other spouse” is broad enough to cover it.

The ERISA Trap for Retirement Accounts

Federal law under ERISA requires that a spouse consent in writing before their survivor benefits under a 401(k), pension, or other employer-sponsored retirement plan can be waived. That consent has to come from a spouse, not a fiancé.¹⁴ A prenuptial agreement signed before the wedding does not satisfy ERISA’s consent requirements, even if it explicitly addresses retirement benefits. To properly waive them, the spouse has to sign a separate waiver after the marriage, following the plan’s specific procedures. Couples who rely on a prenuptial agreement alone to handle retirement benefits can find the plan administrator refuses to honor it.

Tax Treatment of Transfers and Support

The contract divides money and property, but federal tax law decides how those transfers are taxed.

Under Internal Revenue Code Section 1041, property transfers between spouses or between former spouses incident to divorce trigger no taxable gain or loss. The recipient takes over the transferor’s original tax basis, so any built-in gain is deferred rather than eliminated. A transfer qualifies if it happens during the marriage, within one year after the divorce, or is related to the end of the marriage.¹⁵ This matters when dividing assets like real estate or stock with significant unrealized appreciation, because the spouse who receives a low-basis property will owe taxes on the full gain when they sell.

For any divorce or separation agreement executed after 2018, spousal maintenance payments are not deductible by the paying spouse and are not taxable income to the recipient. Modifying an older agreement can pull it into the new rules if the modification expressly says so.¹⁶ Child support, regardless of when the agreement was signed, is never deductible and never taxable.

Enforcing a Spousal Contract

When a dispute arises, the spouse seeking enforcement has to show the agreement is valid. Courts look at whether the formalities under DRL 236(B)(3) were met, whether the terms are clear enough to enforce, and whether any basis exists for setting the agreement aside.¹

Vague provisions cause real problems. A clause promising “fair support” without an amount or duration gives a judge nothing to work with. The more specific the drafting, the easier enforcement becomes.

When a spouse fails to meet financial obligations in the agreement, the other can seek a money judgment for unpaid amounts, a wage deduction order, or contempt proceedings that can carry jail time for willful noncompliance.¹⁷ The Uniform Interstate Family Support Act provides enforcement mechanisms if the non-paying spouse has left New York.

Changing or Ending the Agreement

Both spouses can modify a contract by signing a written amendment, properly acknowledged before a notary, following the same formalities as the original. A significant change in income, the birth of a child, or a health crisis are common reasons to revise. Courts can also modify spousal support when enforcement would cause extreme hardship, and they retain authority to modify child support and custody regardless of what the contract says, because those obligations cannot be bargained away.

A separation agreement can be nullified if the spouses reconcile and resume living together, treating it as abandoned. A final divorce judgment can also supersede contractual terms if the court determines modifications are necessary for fairness.

What a Spousal Contract Cannot Do to Creditors

A contract between husband and wife cannot shield assets from legitimate creditors. If one spouse transfers property to the other to avoid paying debts, the transfer can be challenged as a fraudulent conveyance. Courts look for transfers made shortly before or during litigation, transfers for little or no real consideration, and situations where the transferring spouse kept control of the property afterward. A court that finds a transfer was designed to dodge creditors can undo it entirely.

1
New York State Senate. New York Domestic Relations Law 236 – Special Controlling Provisions
2
New York State Unified Court System. C.S. v L.S. (2013 NY Slip Op 51624(U))
3
New York State Senate. New York Domestic Relations Law 170 – Action for Divorce
4
NYCourts.gov. Conversion of a Written Separation Agreement DRL 170(6)
5
NYS Divorce Information. Requisites of Matrimonial Agreements – Domestic Relations Law 236(B)
6
New York State Unified Court System. Legal Separation by Agreement of Parties
7
New York Department of State. Notary Public – Frequently Asked Questions
8
New York State Unified Court System. Petracca v Petracca (2012 NY Slip Op 08294)
9
NY Courts. Preliminary Conference Stipulation/Order (Contested Matrimonial)
10
New York State Unified Court System. Gottlieb v Gottlieb
11
New York State Unified Court System. Child Support – Determining the Amount Under the Child Support Standards Act
12
New York State Senate. New York Domestic Relations Law DOM 253
13
New York State Senate. New York Estates, Powers and Trusts Law 5-1.1-A – Right of Election by Surviving Spouse
14
Office of the Law Revision Counsel. 29 U.S. Code 1055 – Requirement of Joint and Survivor Annuity and Preretirement Survivor Annuity
15
Office of the Law Revision Counsel. 26 USC 1041 – Transfers of Property Between Spouses or Incident to Divorce
16
Internal Revenue Service. Topic No. 452, Alimony and Separate Maintenance
17
New York City Bar Association. Modification and Enforcement of Maintenance Award