What Is the Child Support Percentage in NY?

New York uses a fixed percentage formula to calculate child support. The child support percentage in NY depends on how many children need support. For one child, the noncustodial parent pays 17% of combined parental income. Two children bumps that to 25%. Three children means 29%. It goes up from there.

Most parents searching for this number are trying to figure out what they’re actually going to owe or receive. The child support percentages sound straightforward, but the way New York State calculates the income behind them catches a lot of people off guard. Certain deductions, a statutory income cap, and judicial discretion all affect the final number.

This post breaks down exactly how the support percentage works in New York, what income counts, what gets deducted before the formula kicks in, and what can change the amount a court orders. If you’re heading into a custody or divorce case, this is the math that matters.

How Does the Child Support Percentage Formula Work in New York?

New York’s Child Support Standards Act, often called the CSSA, sets the child support percentages courts use to calculate a basic child support obligation. The support formula is not optional. Courts must apply it unless they find a reason to deviate and put that reason on the record.

Here’s how the percentages break down by number of children:

• One child: 17% of combined parental income
• Two children: 25% of combined parental income
• Three children: 29% of combined parental income
• Four children: 31% of combined parental income
• Five or more children: no less than 35% of combined parental income

The court first calculates each parent’s gross income. Then it subtracts specific deductions, like FICA taxes and Medicare. The result is each parent’s adjusted gross income. Both incomes are added together to determine the combined income. The applicable percentage of the combined parental income is multiplied against that total. Then each parent’s share of the basic child support obligation is determined based on how much of the combined income they earn.

The parent who earns 70% of the combined income pays 70% of the child support obligation. The noncustodial parent’s share is what gets ordered as a payment. That percentage of the combined parental income becomes the baseline for the entire child support order.

What Income Counts Toward the Child Support Calculation in New York State?

Income for child support purposes in New York State is broader than most people expect. It’s not just a W-2 salary. The court looks at gross income from all sources, and the list is long.

Wages, salary, commissions, overtime, bonuses, and tips all count. So do investment returns, rental income, Social Security benefits, disability payments, pensions, and annuities. Workers’ compensation benefits count. Unemployment insurance counts. If a parent receives cash value from fringe benefits like a company car or housing allowance, that can be included too. Income reported on a tax return from any source is fair game.

Self-employment income gets calculated differently. The court looks at gross receipts minus legitimate business expenses. But courts in New York scrutinize self-employment deductions carefully. A parent who runs personal expenses through a business to lower reported income can expect a judge to add those amounts back in.

One thing that surprises people: a court can impute income to a parent who is voluntarily unemployed or underemployed. If a noncustodial parent earning $120,000 a year quits their job and takes a part-time position paying $30,000, the court may calculate the support obligation based on what that parent is capable of earning. This is common in contested New York child support cases where one parent suspects the other is trying to lower their support payments.

What Is the Income Cap for the Basic Child Support Obligation in New York?

New York applies the child support percentage to combined parental income up to a statutory cap. That cap changes periodically. As of 2025, the income cap is $172,000 in combined parental income. Any income above that amount is treated differently.

For income below the cap, the support formula applies automatically. The court multiplies the combined income by the relevant percentage and splits the support obligation based on each parent’s share.

For income above the cap, the court has discretion. It can apply the same percentage to the excess income. It can apply a lower percentage. Or it can consider a set of factors and order an amount it finds appropriate. Those factors include the financial resources of both parents, the child’s health and special needs, the standard of living the child would have had if the household stayed together, and the tax consequences of the child support order.

In practice, many New York family courts do apply the formula percentage to income above the cap. But it’s not guaranteed. A child support lawyer familiar with how your county’s judges handle above-cap income can give you a realistic picture of what to expect.

What Deductions Lower the Income Used in the New York Child Support Formula?

Before the percentage kicks in, New York law allows specific deductions from each parent’s gross income. These aren’t optional. The court subtracts them before calculating the basic child support obligation.

The mandatory deductions include FICA taxes (Social Security and Medicare withholding), New York City or Yonkers income tax (if applicable), and support payments actually paid under a prior court order for a different family. If a noncustodial parent is already making support payments for children from a previous relationship, that amount comes off the top.

These deductions can meaningfully change the support number. A parent earning $100,000 with $7,650 in FICA deductions and $5,000 in existing support payments from a prior order would have an adjusted gross income of $87,350 for the new calculation. That’s a noticeable difference when you multiply it by 17% or 25%.

What doesn’t get deducted? Voluntary retirement contributions, health insurance premiums, union dues, and general living expenses are not subtracted from income before the basic child support obligation is calculated. Those might matter in other financial discussions during a divorce, but they don’t reduce the income number for the child support formula.

What Is the Self-Support Reserve and How Does It Affect Child Support in New York?

New York State law includes a provision called the self-support reserve. This protects very low-income parents from child support orders that would push them below the poverty line.

The self-support reserve is tied to the federal poverty guidelines. If the noncustodial parent’s income is at or below the poverty level, the court will not order support payments that would reduce their income below that threshold. In most cases, the minimum child support order for a very low-income parent is $25 per month.

Parents receiving Public Assistance are not automatically exempt from a child support obligation. The court still calculates the obligation using the standard formula. But the self-support reserve acts as a floor. No child support order can leave the paying parent without enough to meet basic needs.

This comes up more often than people realize. A parent between jobs, a parent on disability, or a parent earning minimum wage may qualify for the reduced amount under the self-support reserve. The court looks at current income at the time of the hearing, not what someone earned in the past.

Can a New York Family Court Deviate from the Child Support Percentage?

Yes. But the court has to explain why.

New York courts can deviate from the CSSA formula if applying it would be “unjust or inappropriate.” The law lists specific factors a judge must consider before ordering a different amount. The parent requesting a deviation has the burden of showing why the standard calculation doesn’t fit.

Factors courts consider include the financial resources of each parent, the child’s physical and emotional health, the child’s educational needs, the standard of living the child enjoyed before the separation, any non-monetary contributions a parent makes toward the child’s care, and the tax impact on each parent.

Deviation happens more often than people think. A parent with very high income might argue the formula produces a basic child support obligation far beyond the child’s actual needs. A parent with very low income might argue the formula leaves them unable to meet basic expenses. A child with significant medical needs might require more than the formula produces.

The key point: deviation requires a written finding on the record. A judge can’t just pick a number. The court must walk through the factors and explain the reasoning. If it doesn’t, the child support order can be challenged on appeal.

What Additional Expenses Get Added on Top of the Child Support Percentage in New York?

The base child support percentage doesn’t cover everything. New York law requires parents to split certain additional costs on top of the basic child support obligation.

Child care expenses are the big one. If the custodial parent needs child care to work or attend school, that cost gets divided between the parents in proportion to their income shares. A parent earning 60% of the combined income pays 60% of the child care bill. These amounts can be substantial, especially in New York City, where child care easily runs $15,000 to $25,000 or more per year.

Unreimbursed medical expenses for the child also get split proportionally. If a child needs dental work, therapy, glasses, or any medical care not covered by health insurance, both parents share the cost.

Health insurance premiums for the child are allocated too. The court determines which parent provides health insurance coverage and how the premium cost is divided. In most cases, it follows the same income-share ratio used for the basic support obligation.

Educational expenses can also be added. This is more discretionary. Courts in New York sometimes order contributions toward private school tuition or extracurricular activities, particularly if the child was already enrolled in those programs before the separation. College expenses are a separate discussion that depends on factors like each parent’s ability to pay and the child’s academic performance.

How Does Shared Custody Affect the Child Support Percentage in New York?

Shared custody or split custody arrangements can change how child support gets calculated, but New York does not have a simple formula adjustment for 50/50 parenting time. This catches a lot of parents off guard.

Some states reduce the support obligation automatically when the noncustodial parent has the child more than a certain percentage of overnights. New York doesn’t work that way. The CSSA formula applies regardless of the custody arrangement. A noncustodial parent with 50% parenting time can still owe the full calculated amount.

That said, courts do have discretion to consider the parenting schedule as one of the factors when determining whether to deviate from the formula. A parent who has the child nearly half the time and is already covering a significant share of daily expenses like food, clothing, and activities may have a basis for requesting a deviation.

In practice, New York family law judges handle this inconsistently. Some judges adjust the support obligation for substantially equal parenting time. Others stick strictly to the formula. A child support lawyer who regularly practices in your county’s family court can tell you how the judges there typically handle shared custody situations.

How Long Do Child Support Payments Last in New York?

Child support in New York generally continues until the child turns 21. Not 18. This is a frequent point of confusion because many states set the cutoff at 18.

There are exceptions that can end support payments earlier. If the child gets married, joins the military, or becomes self-supporting, the obligation may terminate before 21. Emancipation works differently in New York than in other states. A child doesn’t automatically become emancipated at 18 just because they graduate high school.

The age-21 rule also means that a noncustodial parent may owe support payments through a child’s college years. Combined with the possibility that a court could order contributions toward educational expenses, the financial obligation can extend well beyond what parents initially expect.

If circumstances change significantly before the child ages out, either parent can petition the court for a modification of the child support order. Job loss, a major income change, or a shift in the child’s needs can all justify revisiting the support order.

Can You Estimate Your Child Support Obligation Before Going to Court in New York?

You can get a rough idea. New York State provides an online Child Support Calculator through the Office of Temporary and Disability Assistance. The tool asks for both parents’ income, the number of children, and a few other details. It runs the CSSA formula and gives you a ballpark figure.

The calculator is useful for a quick estimate. But it won’t account for above-cap income decisions, deviations, or add-on expenses like child care and health insurance. It also can’t factor in disputes about income, imputed earnings, or self-employment deductions.

For a more accurate picture, bring your most recent tax return and pay stubs to a consultation with a child support lawyer. The numbers on paper don’t always match what a court will use, especially if income has changed recently or if one parent’s earnings are harder to pin down.

FAQ: Child Support Percentage Questions New York Parents Ask

Does Overtime Pay Count Toward the Child Support Calculation in New York?

Yes. Overtime is included in gross income for child support purposes. If a parent regularly works overtime, the court includes it when calculating the support obligation. Even inconsistent overtime can be averaged. A noncustodial parent who claims they’ll stop working overtime to lower their obligation is unlikely to get relief unless the reduction is genuine and involuntary.

Can a Child Support Order Be Modified After It’s Entered in New York?

Either parent can petition for a modification. The standard is a substantial change in circumstances. That could mean a significant income increase or decrease, a change in the child’s needs, or a change in the custody arrangement. New York also allows modification if three years have passed since the child support order was entered or if either parent’s income has changed by 15% or more since the last order.

What Happens If a Parent Doesn’t Make Court-Ordered Child Support Payments in New York?

Enforcement options in New York are aggressive. The court can garnish wages, intercept tax refunds, suspend a driver’s license, suspend a professional license, freeze bank accounts, and even issue a warrant for arrest. A parent who falls behind on support payments should petition for a modification rather than simply stop paying. Unpaid child support accrues as a judgment and collects interest.

Does a New Spouse’s Income Affect Child Support in New York?

No. A new spouse’s income is not included in the child support calculation. Only the biological or legal parents’ incomes are used. However, a court might consider that a new spouse reduces a parent’s living expenses, which could come into play during a deviation analysis. The new spouse won’t see their paycheck factored into the support formula, though.

Is the Child Support Percentage Different for High-Income Parents in New York?

The percentage stays the same. One child is still 17%, two children are still 25%, and so on. The difference is what happens above the income cap. For combined income above $172,000, the court decides whether to apply the same percentage, a lower percentage, or a different amount based on the statutory factors. High-income child support cases in New York often require a child support lawyer because the above-cap analysis involves significant judicial discretion.

Talk to a New York Child Support Lawyer at Cedeño Law Group

If you’re trying to figure out what child support will look like in your case, Cedeño Law Group, PLLC can walk you through the numbers. Our New York child support lawyers handle these calculations every day and know how the courts in your county apply the support formula. Call today to get clear answers about what you’ll owe or what you’re entitled to receive.

UPDATED April 2026