New York calculates child support and spousal maintenance using formulas set out in the Child Support Standards Act (Domestic Relations Law § 240(1-b)) and the maintenance guidelines in DRL § 236(B)(6). This free New York child support calculator walks through both formulas step by step — computing each parent’s income for support purposes, the presumptive child support obligation, and the presumptive maintenance amount and advisory duration. The result is a starting point, not a substitute for legal advice: read more on our child support and spousal maintenance pages, or contact our Westchester and Nassau County matrimonial attorneys to discuss how these numbers apply to your case.

New York Presumptive Child Support & Spousal Maintenance Worksheet

Based on the formulas in Domestic Relations Law §§ 236(B) and 240(1-b) (CSSA)

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Not legal advice. This worksheet calculates the presumptive statutory amounts only. Courts may deviate from these figures after considering the factors listed in DRL §236(B)(6)(e) (maintenance) and §240(1-b)(f) (child support). Statutory income caps, the Social Security wage base, and NYC/NYS/Yonkers tax rates are adjusted periodically — the defaults below are labeled with the year they were last known to be accurate and must be verified against current published figures (NYS Office of Court Administration / NYS DTF / IRS) before relying on this worksheet. Where you know the parties’ actual FICA, self-employment, or local tax paid (e.g., from a tax return), enter it directly in the override fields — the statute uses actual amounts paid, not estimates.

Case Information

Number of children of the marriage

Custodial / residential parent (for child support)

Date of marriage

Date of commencement of action (filing date)

Length of marriage override (years)

Auto-calculated from the dates above under DRL §236(B)(6)(f); enter a value here only to override.

Parents’ Income

Statutory Assumptions (edit if current figures differ)

CSSA combined-income cap ($) — current: $193,000

Maintenance payor income cap ($) — current: $241,000

Social Security wage base ($) — last known: $168,600 (2024)

Yonkers resident surcharge (% of NYS tax) — last known: 16.75%

Yonkers non-resident earnings tax rate (%) — last known: 0.50%

NYC tax rate — bracket 1 (%)

NYC tax rate — bracket 2 (%)

NYC tax rate — bracket 3 (%)

NYC tax rate — bracket 4 / top rate (%)

The four NYC rates above apply progressively (income thresholds for each bracket are fixed by filing status and not editable here). FICA (6.2%/1.45%), self-employment tax (12.4%/2.9%), the 0.9% Additional Medicare Tax, NYS tax brackets, and the CSSA percentages by number of children (17%/25%/29%/31%, and not less than 35% for five or more children) are fixed by federal/state statute and are built in.

Step 1Spousal Maintenance

Maintenance payor

Will the maintenance payor also pay child support to the payee?

Additional discretionary maintenance ($/yr, above guideline)

Only if court exercises discretion under DRL 236(B)(6)(e) re: income above the cap.

Manual override — total maintenance amount ($/yr)

If filled in, this figure is used directly as the presumptive maintenance amount (e.g. a stipulated or pendente lite figure), instead of the guideline formula.

Maintenance income cap treatment

A court may apply the guidelines above the presumptive cap (DRL §236(B)(6)(e)), or the parties may stipulate to a different cap.

Step 2Child Support

Maintenance amount to apply to this calculation ($/yr)

Auto-filled with the presumptive maintenance amount once you calculate maintenance above (Step 1). Edit this value directly to use a different figure, or clear it / leave at 0 if no maintenance applies to this calculation.

Child support combined-income cap

Add-On Child Expenses (annual, shared per statute)

Child care costs (to enable a parent to work/attend education)

Children’s share of health insurance premium

Unreimbursed medical / education expenses