US-New YorkDoes adultery affect property division or custody in New York?
No, adultery does not affect property division or custody decisions in New York. Courts focus on equitable distribution and the child’s best interests—not marital misconduct.
What the Law Says
New York is a no-fault divorce state, and its domestic relations laws explicitly exclude marital misconduct—including adultery—from consideration in property division and custody determinations.
Under New York law, property division follows the principle of 'equitable distribution,' meaning courts divide marital property fairly—not necessarily equally—based on statutory factors like income, length of marriage, and contributions to the marriage. Adultery is not among those factors.
For child custody, courts apply the 'best interests of the child' standard. The Domestic Relations Law lists specific factors—such as parental fitness, stability, and the child’s wishes (if mature enough)—but expressly excludes marital misconduct unless it directly harms the child.
This reflects New York’s policy that financial and custodial outcomes should be based on objective, child-centered or economic realities—not moral judgments about conduct during the marriage.
Statutory TextIn determining equitable distribution of marital property, the court shall not consider marital misconduct.
— Domestic Relations Law §236(B)(2)(b)
Statutory TextThe court shall not consider marital misconduct in determining custody or visitation unless the misconduct has a direct effect on the child.
— Domestic Relations Law §240(1-a)(c)
What Courts Have Said
New York appellate courts have consistently held that adultery alone cannot justify unequal property division or adverse custody rulings.
Court affirmed that husband’s adultery had no bearing on equitable distribution where it did not affect marital finances or assets.
Mother’s extramarital affair was irrelevant to custody; court emphasized absence of evidence linking it to harm or instability for the child.
What to Do
Focus evidence on financial circumstances (e.g., income, debts, asset valuations) for property division.
For custody, gather documentation showing parenting capacity, schedule stability, and child’s needs—not spouse’s personal conduct.
If misconduct involves abuse, neglect, or endangerment, document how it directly affects the child—then raise it under DRL §240(1-a)(c).
File for divorce under the no-fault ground (DRL §170(7)) to avoid unnecessary allegations of adultery.
Consult a New York family lawyer to ensure arguments align with statutory standards—not emotional narratives.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.