Child support is one of the most common and consequential issues in New York family law. When parents separate, the law requires that both parents continue to contribute financially to their children’s welfare. Understanding how child support is calculated, how it can be modified, and what happens when it is not paid gives both parents the knowledge they need to protect themselves and their children.

New York uses a statutory formula to determine child support, but the details and exceptions are numerous. Whether you are the parent receiving support or the parent paying it, this guide provides a clear overview of the rules that apply.
How Child Support Is Calculated in New York
Child support in New York is based on two primary factors: the combined income of both parents and the number of children involved. The percentage of income applied depends on how many children are covered: 17% for one child, 25% for two children, 29% for three children, 31% for four children, and 35% for five or more children — regardless of how many children that is.
The calculation is applied to approximately 93% of the paying parent’s gross income, after the deduction of FICA taxes. This means the base for child support is not your net take-home pay — it is 93% of what you earn before most deductions.
New York courts are required to apply the statutory formula to the first $183,000 of combined parental income. Whether the court will apply the same percentages to income above that threshold depends on a range of factors including the cost of living in the jurisdiction, the income of both parties, and how parenting time is split between the two parents.
What Counts as Income
Income for child support purposes in New York is broadly defined. It includes wages, salaries, overtime, commissions, bonuses, self-employment income, rental income, investment income, and in some cases the value of certain benefits. Courts can also impute income to a parent who is voluntarily underemployed or unemployed — meaning if the court believes a parent is capable of earning more than they report, it can base the support obligation on that higher figure.
This is an important point for both paying and receiving parents. If you believe the other parent is hiding income or deliberately working less to reduce their obligation, that issue can be raised in court. A family law attorney can help you gather the evidence needed to support that argument.
Modifying Child Support
Child support orders in New York are not permanent. Either parent can seek a modification under certain conditions. Under current law, a modification may be sought if there has been a substantial change in circumstances, if either parent’s income has changed by 15% or more, or if three years have passed since the order was last set or reviewed.
Many parents who resolve their cases through agreement waive some of those modification standards as a term of their settlement. It is critical to understand exactly what you agreed to before assuming you can modify support. An attorney can review your agreement and advise you on what standards apply in your specific case.
Consequences of Not Paying Child Support
Failing to pay child support in New York carries serious consequences — but those consequences do not happen automatically. The parent receiving support must file an application for enforcement. Once that application is filed, the court process begins.
If a pattern of nonpayment is established, the court can find the paying parent in contempt. When nonpayment is deemed willful — meaning the parent had the means and opportunity to pay but chose not to — the consequences can include license suspension, tax refund interception, and in serious cases, jail time. While the process takes time, the courts do act. The burden is on the receiving parent to pursue enforcement, and it is worth doing.
What to Do If You Cannot Afford to Pay
If your financial situation has genuinely changed and you cannot afford your current child support obligation, the worst thing you can do is nothing. You cannot simply stop paying and hope the situation resolves itself. Arrears accumulate, and the obligation does not go away.
The correct path is to file an application for a downward modification as soon as possible. If you lost your job through no fault of your own, that may be grounds for modification. The court will not reduce the obligation retroactively to before your application was filed — which is another reason to act quickly. Voluntarily leaving employment is not a basis for modification. The job loss must be genuine and involuntary.
Conclusion
Child support in New York is governed by a formula, but applying that formula correctly — and navigating modifications, enforcement, and disputes — requires knowledge of the law and the facts of your specific situation. Both paying and receiving parents benefit from understanding the rules before problems arise.
If you have questions about child support in New York, the Sklavos Law Group, PC is here to help you understand your rights and obligations.