New York uses a formula based on your income and custody arrangement
New York calculates child support using the Child Support Standards Act (CSSA), which is a fixed formula rather than a judge's discretion. The calculation starts with your combined parental income — both parents' gross income added together — then applies a percentage based on how many children need support. The parent who does not have primary custody (usually called the "non-custodial parent") pays a percentage of combined income up to a cap that changes each year.
The formula does not account for who earns more or who has better circumstances. It is mechanical: income in, percentage out, payment amount set. The only flexibility is in what counts as "income" and whether a judge decides to go above or below the standard amount based on specific facts.
New York updates the income cap every February based on inflation. For 2024, the cap is $163,000 combined parental income, but this number changes annually. If your combined income exceeds the cap, a judge may still order support on the excess amount, but it is not automatic.
Key Takeaways
- Child support is calculated by adding both parents' gross income, then applying a set percentage (17% for one child, 25% for two, 29% for three, 31% for four, and 35% for five or more) up to the annual income cap.
- Gross income includes wages, self-employment income, bonuses, and some benefits, but the exact definition depends on your situation and what a court decides counts.
- The non-custodial parent (the one without primary custody) pays the calculated amount to the custodial parent or through the state's collection system.
- Income cap amounts change every February, so a calculation that was correct last year may need to be recalculated if either parent's income changed significantly.
- A judge can order support above the standard formula if combined income exceeds the cap or if other factors (like a child's special needs or private school costs) justify it.
What counts as income for the calculation
The CSSA defines income broadly. It includes W-2 wages, self-employment income, bonuses, commissions, rental income, and investment income. It also includes unemployment benefits, workers' compensation, disability benefits, and some public assistance payments. If you receive income in any regular form, it likely counts.
Some income does not count. Child support you are already paying for other children is subtracted from your income before the formula is applied. Spousal support (alimony) you are paying is also subtracted. Social Security benefits paid to a child (not to you) do not count as your income. If you receive Supplemental Security Income (SSI) or certain other means-tested benefits, those typically do not count.
Self-employment income is often the most disputed category. The court looks at your tax returns and may allow deductions for legitimate business expenses, but it will not accept inflated deductions or losses claimed only to lower support. If you own a business, bring your last two years of tax returns and your business profit-and-loss statements.
The percentage brackets and how they work
| Number of Children | Percentage of Combined Income |
|---|---|
| One child | 17% |
| Two children | 25% |
| Three children | 29% |
| Four children | 31% |
| Five or more children | 35% |
The percentage applies to combined income only up to the annual cap. For example, if both parents earn $100,000 combined and there is one child, the calculation is $100,000 × 17% = $17,000 per year, or about $1,417 per month. That amount is then divided between the parents based on their income ratio.
The division works like this: if one parent earns $60,000 and the other earns $40,000, the $60,000 earner pays 60% of the total support obligation and the $40,000 earner pays 40%. Usually the non-custodial parent pays the full amount to the custodial parent, but in shared custody situations, each parent may owe a portion.
How custody arrangement affects the calculation
The parent with primary custody (the one the child lives with most of the time) receives the payment. The other parent pays. If custody is split roughly equally — called shared custody — both parents may owe support to each other, and the calculation becomes more complex because each parent's "custodial share" is factored in.
In shared custody cases, New York reduces each parent's support obligation by their percentage of custody time. If you have the child 40% of the time and the other parent has 60%, your obligation is reduced by 40%. The court uses the actual custody schedule to calculate this, not a theoretical split.
If one parent has the child overnight more than 50% of the time, that parent is considered the custodial parent for support purposes, and the other parent pays. Overnight stays are what counts, not daytime visits or phone calls.
What happens when income is above the cap
If combined parental income exceeds the annual cap ($163,000 in 2024, but this changes yearly), the standard formula stops applying automatically. A judge may order support on the income above the cap, but it is not required. The court looks at factors like the child's actual needs, the parents' standard of living, and what each parent can afford.
This is where discretion enters the calculation. A judge might order 10% of income above the cap, or 5%, or nothing at all. There is no set rule. If you are in this situation, the court will want to know what the child's actual expenses are — private school tuition, medical costs, extracurricular activities — and what the parents' lifestyle was before separation.
High-income cases are often the most contested because the amount of discretion is largest. If you earn significantly above the cap, bring documentation of the child's actual expenses and your household spending before the case began.
How to calculate your own support obligation
You can do a rough calculation yourself, but it will not be exact because income definitions and deductions vary by situation. Start by adding both parents' gross income from the most recent tax returns. Subtract any child support already being paid for other children and any spousal support being paid. Multiply the result by the percentage for your number of children. If the result is below the annual cap, that is your total obligation; divide it by the parents' income ratio to find each parent's share.
For a more accurate number, you need to know exactly what the court will count as income in your case. Income from self-employment, rental property, or investments is often calculated differently than W-2 wages. If either parent claims deductions (like business expenses or alimony paid), those reduce the income used in the formula. A family law attorney or the local child support enforcement office can give you a more precise estimate.
New York's Office of Temporary and Disability Assistance publishes a Child Support Standards Chart each year that shows the income cap and can help you estimate. You can find it on the New York State Department of Social Services website, though it is designed for reference only and does not replace a court calculation.
Modifications when circumstances change
The calculation is not permanent. If either parent's income changes by more than 10% or by $3,000 per year (whichever is less), either parent can ask the court to recalculate. A significant job loss, a substantial raise, or a change in custody arrangement all justify a modification request. The court will recalculate using current income, not the income from the original order.
You must file a formal modification petition with the court or through the child support enforcement office. Simply telling the other parent that you cannot pay does not change the legal obligation. If you stop paying without a court order, you can be held in contempt and face penalties including wage garnishment, license suspension, or jail time.
If your income has dropped, file the modification request as soon as possible. Courts generally will not retroactively reduce support before the modification is filed, so delay costs you money.
Frequently Asked Questions
Does New York count my new spouse's income in the calculation?
No. Only the two biological or adoptive parents' income counts. A new spouse's income is not included in the formula, even if you are married and file joint tax returns. The court looks only at your individual income for child support purposes.
What if I am self-employed and my income varies a lot?
The court averages your income over the most recent two to three years using your tax returns. If you had a very low year due to a temporary business problem, the court may still use an average that reflects your earning capacity. If you are newly self-employed with only one year of returns, the court may use that year or may estimate based on industry standards if the returns seem unreliable.
Can the court order support above the standard percentage?
Yes. If combined income exceeds the cap, if a child has special needs or attends private school, or if other factors exist, a judge can order more than the standard formula produces. The court must state its reasons in writing if it deviates from the standard amount.
How often does the income cap change?
Every February, New York adjusts the income cap based on inflation. The 2024 cap is $163,000, but it will be different in 2025. If your case was calculated last year and income has not changed, you may still want to check whether the cap changed, because it could affect any support above the cap.
What if one parent is unemployed or underemployed?
The court may impute income — assign an income level based on the parent's earning capacity rather than actual current earnings. If you quit a job to avoid paying support, the court will likely impute your previous salary. If you are genuinely unable to work due to disability or caregiving responsibilities, bring documentation. Imputation is not automatic; the court must find that you are deliberately underemployed.