How Is Child Support Calculated in New York?

Child support can feel confusing because the amount is not simply based on what one parent thinks is fair. New York uses a formula under the Child Support Standards Act (CSSA). The calculation starts with both parents’ income, applies certain deductions, considers the number of children, and then divides the resulting obligation between the parents based on their respective shares of income.

For 2026, New York’s combined parental income cap under the CSSA is $193,000, effective March 1, 2026. Courts can consider income above that amount as well, but the treatment of the excess income involves additional factors and judicial discretion.

The Basic New York Child Support Formula

At its simplest, the calculation works in three steps.

First, the court determines the parents’ combined income for child-support purposes.

Second, the applicable percentage is applied based on the number of children.

Third, the resulting obligation is divided between the parents according to each parent’s share of the combined income.

That sounds straightforward, but the income figure used by the court isn’t always the same number you see on someone’s paycheck.

What Percentage Is Used for Child Support?

New York uses different percentages depending on how many children are being supported:

These percentages apply to combined parental income up to the applicable statutory cap.

So, for example, if the applicable combined income is $100,000 and there is one child, the basic annual child-support obligation would be $17,000 before dividing that obligation between the parents.

That does not automatically mean one parent pays $17,000.

The parents’ individual incomes matter too.

How Is Each Parent’s Share Determined?

Suppose Parent A has adjusted child-support income of $60,000 and Parent B has $40,000.

Their combined income is $100,000.

Parent A earns 60% of the combined income, while Parent B earns 40%.

If they have one child, the basic obligation would be 17% of $100,000, or $17,000 annually.

Parent A’s pro-rata share would be 60% of that amount, or $10,200 per year.

Parent B’s share would be 40%, or $6,800.

The actual amount transferred from one parent to the other depends on the custody arrangement and other circumstances.

New York court decisions describe this process as calculating combined parental income, applying the statutory percentage, and allocating the resulting obligation according to each parent’s proportionate share.

What Income Counts?

This is where things can get more complicated.

The court generally starts with parental income and then makes deductions allowed under the CSSA.

Depending on the circumstances, calculations can involve items such as:

• Social Security taxes
• Medicare taxes
• Certain other legally permitted deductions
• Income from employment
• Self-employment income
• Other sources of income

New York courts have shown how adjusted CSSA income can differ from gross income after permitted deductions.

So if someone says, “I make $80,000, so the court will use $80,000,” that may not necessarily be the final number used in the calculation.

What If a Parent Is Self-Employed?

Self-employment can make child-support calculations more complicated.

A business owner may have business expenses that don’t necessarily tell the whole story about the person’s ability to support a child.

The court can examine financial records and determine what income should actually be considered for child-support purposes.

This is one reason tax returns alone may not tell the entire story in a child-support dispute.

What If a Parent Is Unemployed?

Being unemployed doesn’t automatically mean a parent has no child-support obligation.

Courts can examine the circumstances surrounding unemployment and may consider whether income should be attributed, or “imputed,” to a parent.

For example, if someone voluntarily reduces their income or chooses not to work despite having the ability to earn substantially more, the court may examine whether the reported income accurately reflects the person’s financial resources.

The specific facts matter.

What Happens When Parents Earn More Than $193,000?

This is an important 2026 change.

The combined parental income cap increased from $183,000 to $193,000 on March 1, 2026.

The court applies the statutory calculation to combined parental income up to the cap.

For income above $193,000, the court has additional discretion. It can consider the statutory factors and may apply the child-support percentage to income above the cap depending on the circumstances.

So a family earning $300,000 does not necessarily have child support calculated exactly the same way as a family earning $100,000.

What About Childcare Costs?

Basic child support isn’t necessarily the end of the calculation.

Childcare expenses can also become part of a support order, particularly when childcare is necessary so a parent can work or pursue employment.

The New York Courts specifically identify proof of childcare expenses as relevant documentation in child-support proceedings.

For parents with young children, this can make a noticeable difference in the overall financial responsibility.

What About Health Insurance and Medical Expenses?

Health-related costs can also be addressed separately from the basic child-support calculation.

Parents may need to determine who will provide health insurance for the child and how certain uncovered medical expenses will be divided.

This is why a child-support order can contain more than one financial obligation.

Does Custody Affect Child Support?

Yes, custody and parenting arrangements can affect the practical child-support calculation.

People sometimes assume that having a child for exactly half the week means neither parent will pay support.

It isn’t necessarily that simple.

New York child-support calculations consider the parents’ financial circumstances as well as the custody arrangement. The parent who earns more may still have a support obligation even when both parents spend substantial time with the child.

The exact result depends on the facts and the applicable legal rules.

What About Other Children?

A parent’s responsibility for other children can sometimes affect the calculation.

New York Courts identify other dependents who are not part of the current proceeding as one factor that may be considered when determining support.

For example, a parent supporting children from another relationship may have circumstances that the court needs to consider.

That doesn’t automatically eliminate or dramatically reduce child support, but it can be relevant.

What If the Child Has Special Needs?

The ordinary percentage isn’t necessarily the entire story when a child has significant special needs.

New York Courts identify the child’s physical and emotional health, special needs, and aptitudes among factors that can be considered in determining support.

Additional expenses related to medical care, education, therapy, or other needs may require separate consideration.

What Is the Self-Support Reserve?

New York also recognizes a self-support reserve for certain low-income parents.

For 2026, the self-support reserve is $21,546, while the federal poverty guideline amount for a single person is $15,960.

These rules can prevent a basic support obligation from leaving a qualifying parent without enough income to meet their own basic needs.

In certain circumstances, the basic child-support obligation can be reduced to $25 per month, unless the court finds that amount unjust or inappropriate.

Can Child Support Be Different From the Formula?

Yes.

The CSSA provides a formula, but courts can depart from the basic calculation when the statutory requirements are met.

For example, a court can consider factors involving:

• The financial resources of each parent
• The child’s financial resources
• The child’s physical and emotional health
• Special needs
• The standard of living the child would have enjoyed
• Tax consequences
• Nonmonetary contributions
• Other relevant statutory factors

A court that finds a pro-rata obligation unjust or inappropriate must explain the factors supporting the decision.

What Documents Are Needed?

If you’re going through a child-support case, don’t wait until the court date to start looking for financial records.

Useful documents can include:

• Recent pay stubs
• W-2 forms
• Tax returns
• Financial disclosure forms
• Social Security or disability statements
• Unemployment records
• Workers’ compensation information
• Childcare expense records
• Health insurance information
• Existing child-support orders
• Proof of payments for other children

New York Courts specifically list these types of documents for child-support proceedings.

Can Child Support Be Changed Later?

Yes.

A child-support order isn’t necessarily permanent.

If circumstances substantially change, a parent may be able to ask the court to modify the amount. New York Courts also provide procedures for requesting an increase or decrease in support.

A major income change, employment situation, or change in the child’s needs may become relevant.

However, a parent shouldn’t simply stop paying because their financial situation has changed. An existing court order generally remains in effect until it is properly modified.

Is There a New York Child Support Calculator?

Yes. New York Courts provide worksheets and calculator tools designed to help calculate guideline child support.

The state’s 2026 Child Support Standards Chart is also available and provides approximate annual obligations based on income and the number of children.

A calculator can be useful for getting an estimate, but it shouldn’t be treated as a guaranteed final court order.

Frequently Asked Questions

1. What percentage is child support in New York?

The basic percentages are 17% for one child, 25% for two, 29% for three, 31% for four, and at least 35% for five or more children.

2. Is child support based on gross income?

Not always. New York uses income adjusted under the CSSA, which can involve certain permitted deductions.

3. What is the child support income cap in New York in 2026?

The combined parental income cap is $193,000 as of March 1, 2026. Income above that amount can still be considered under the statutory framework.

4. Does 50/50 custody mean there is no child support?

Not necessarily. Child support considers the parents’ incomes and other circumstances, so equal or substantial parenting time does not automatically eliminate support.

5. Can a child support order be changed?

Yes. A parent may be able to request a modification when circumstances justify changing the existing order.

Final Thoughts

New York child support is based on a formula, but the final number can be more complicated than simply taking someone’s salary and multiplying it by 17%, 25%, or another percentage.

The court may need to determine each parent’s adjusted income, calculate combined parental income, apply the appropriate percentage, divide the obligation proportionally, and consider additional expenses and statutory factors. For 2026, the combined-income cap is $193,000, making it especially important to use current information rather than an older online calculator.

If you’re trying to estimate what you may owe or receive, start by gathering accurate financial records. If the parents have complicated income, substantial assets, self-employment, unusual custody arrangements, or disagreements about expenses, speaking with a New York family-law attorney can help clarify the numbers.