Does Cheating Affect Your Divorce in New York?

One of the most emotionally charged questions in a divorce consultation is: "Does it matter that my spouse cheated?" The answer under New York law is nuanced. Infidelity will not, by itself, give you a larger share of the marital assets or a punitive outcome against your spouse. But it is not entirely without consequence.

New York Is a No-Fault Divorce State

Since 2010, New York has allowed divorce on no-fault grounds — specifically, that the relationship has irretrievably broken down for a period of at least six months. This means either spouse can obtain a divorce without proving the other spouse did anything wrong. You do not need to allege or prove adultery to get divorced in New York.

Adultery remains a legal ground for divorce in New York, but it is rarely used in practice. Proving adultery in court is difficult, expensive, and emotionally draining — and since no-fault divorce is available, there is rarely a strategic reason to pursue it.

Adultery and Property Division

New York courts divide marital property on an equitable basis — not necessarily 50/50, but fairly based on the circumstances of the marriage. The Domestic Relations Law lists approximately 13 factors courts consider in equitable distribution. Marital fault, including adultery, is not one of them.

As a general rule, New York courts do not award a larger share of marital property to the innocent spouse simply because the other spouse had an affair. Judges view equitable distribution as an economic partnership dissolution, not a moral accounting.

However, there is an important exception: dissipation of marital assets. If a cheating spouse spent significant marital money on an affair — hotel rooms, gifts, vacations, jewelry, or supporting a paramour financially — that spending may be considered dissipation of the marital estate. The innocent spouse may be entitled to a credit for the amount that was wasted, reducing what the cheating spouse receives from the overall distribution.

Adultery and Spousal Maintenance

Spousal maintenance (alimony) in New York is determined primarily through a formula based on the incomes of the parties. Courts can deviate from the formula for listed reasons, but marital fault is not an explicit factor in the maintenance calculation.

However, there is a statutory bar that is still on the books: a spouse who is the "more guilty" party in an adultery situation may, in theory, be barred from receiving maintenance under New York's Domestic Relations Law. In practice, this provision is rarely successfully invoked — courts have interpreted it narrowly and the no-fault framework has significantly reduced its practical application. But it is not entirely dead as a concept, and in egregious cases, it is occasionally raised.

Adultery and Child Custody

New York courts determine custody and parenting time based on the best interests of the child. Adultery, in and of itself, does not make a parent unfit and does not directly affect custody determinations.

However, the circumstances surrounding an affair can sometimes be relevant to custody. If the cheating spouse exposed the children to an inappropriate relationship, brought a new partner into the home prematurely, or allowed the affair to interfere with parenting responsibilities — those specific facts might be relevant to a custody evaluation. The affair itself is not what matters; its impact on the children and the parenting relationship is.

What You Should Do If Your Spouse Cheated

If your spouse has been unfaithful and you are considering divorce, here is practical guidance:

• Document any spending on the affair — credit card statements, bank records, and Venmo or Zelle transfers can all be relevant to a dissipation claim
• Do not retaliate financially — dissipating assets yourself can harm your own case
• Focus your legal strategy on the real economic issues: property division, maintenance, and support
• If your spouse is using marital funds to support a new partner, raise this with your attorney immediately
• Let the emotional impact of the affair be addressed in therapy, not in the courtroom — courts are not equipped to validate your pain through financial punishment

The attorneys at Aiello & DiFalco LLP understand that infidelity creates real emotional wounds that affect how clients approach the divorce process. We provide candid legal guidance about what the law can and cannot do, and we work to protect our clients' financial interests in every case.