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New York Child Support Calculator

Updated for New York's 2026-NY-CSSA-v1 guidelines · Last reviewed 2026-07-11

✓ Cross-checked against New York's official calculator/worksheet — see our verification methodology

Estimate only — not legal advice. This calculator provides a good-faith estimate based on New York's published child support guidelines as of 2026-07-11. Results may differ from a court order. For your official calculation, consult New York State Child Support Standards Act (CSSA) or a family law attorney licensed in New York.

Calculation is client-side, income figures are never transmitted or stored.

How New York Child Support Is Calculated

  1. Combine both parents' income to get combined parental income.
  2. Apply the statutory percentage based on number of children (17% for 1 child, 25% for 2, 29% for 3, 31% for 4, 35% for 5 or more) to combined income up to the cap ($193,000/year, effective 2026-03-01).
  3. The parent with fewer overnights (even close to 50/50) pays their pro-rata share of that amount — New York does not use a shared-parenting offset formula.
  4. Health insurance, work/education-related childcare, and unreimbursed medical costs are mandatory add-ons split pro rata by income share, on top of the basic obligation.
  5. Above the income cap, courts apply 10 statutory factors rather than the automatic percentage.

New York Child Support Worksheet Walkthrough

Example: combined parental income of $6,000/month, 2 children, Parent A earns $4,000/mo (67% share) and Parent B earns $2,000/mo (33% share) and has fewer overnights.

  1. Combined income: $6,000/month (below the $16,083/month cap).
  2. 2 children → statutory percentage: 25%.
  3. $6,000 × 0.25 = $1,500/month basic obligation.
  4. Parent A's share (67%) of $1,500 = $1,000/month guideline child support paid by Parent A.

How This Calculator Works — Formula & Constants

Source: New York State Child Support Standards Act (CSSA) · Calcul déterministe — no AI, no arbitrary estimate.

Constants used

ConstantValueSource
1 child17%N.Y. Dom. Rel. Law § 240; Family Court Act § 413
2 children25%N.Y. Dom. Rel. Law § 240; Family Court Act § 413
3 children29%N.Y. Dom. Rel. Law § 240; Family Court Act § 413
4 children31%N.Y. Dom. Rel. Law § 240; Family Court Act § 413
5+ children35%N.Y. Dom. Rel. Law § 240; Family Court Act § 413
Combined income cap$16,083/moN.Y. Dom. Rel. Law § 240; Family Court Act § 413
Self-support reserve$1,795/moN.Y. Dom. Rel. Law § 240; Family Court Act § 413

Formula

combined_income = parentA_income + parentB_income
base_obligation = min(combined_income, cap) × percentages_of_combined[children]
share_B = parentB_income / combined_income
total_obligation = base_obligation + childcare_cost + health_insurance_cost
obligation_B = total_obligation × share_B

Deterministic calculation based on New York's official guideline schedule table. Verify against New York's official calculator for a court-ready figure.

FAQ

How is child support calculated in New York?

Combine both parents' income to get combined parental income. Apply the statutory percentage based on number of children (17% for 1 child, 25% for 2, 29% for 3, 31% for 4, 35% for 5 or more) to combined income up to the cap ($193,000/year, effective 2026-03-01). The parent with fewer overnights (even close to 50/50) pays their pro-rata share of that amount — New York does not use a shared-parenting offset formula. Health insurance, work/education-related childcare, and unreimbursed medical costs are mandatory add-ons split pro rata by income share, on top of the basic obligation. Above the income cap, courts apply 10 statutory factors rather than the automatic percentage.

Does New York reduce child support for shared/50-50 custody?

No. New York's CSSA formula does not include a shared-parenting or overnight-based offset like income-shares states use. Even in a near-50/50 schedule, whichever parent has fewer overnights (as designated by the court) still pays their full pro-rata share of the statutory percentage — there's no built-in credit for shared time, though a court retains discretion to deviate.

What counts as income under the New York CSSA?

Combined parental income for CSSA purposes starts from gross income and is adjusted for statutory items such as FICA/Medicare taxes, NYC or Yonkers income tax if applicable, and maintenance (spousal support) actually paid to the other parent. It is not simply take-home pay.

What happens if combined income is above $193,000/year?

Above the $193,000/year combined income cap (effective 2026-03-01), courts stop applying the automatic statutory percentage. Instead, they weigh 10 factors set out in the CSSA — including the standard of living the child would have had, the non-monied parent's needs, and the parties' financial resources — to decide support on the portion above the cap.

Methodology & Source

Formula model: income shares. Effective 2026-03-01, guideline version 2026-NY-CSSA-v1, last reviewed 2026-07-11.

Official source: New York State Child Support Standards Act (CSSA) (N.Y. Dom. Rel. Law § 240; Family Court Act § 413).

Above the combined income cap, courts apply 10 statutory factors rather than the automatic percentage. Courts may also deviate below the cap for documented reasons — this calculator shows the presumptive guideline amount only, not a court order.

Guideline figures transcribed from the primary source above and cross-checked against New York's official calculator/worksheet for multiple test scenarios — see our verification methodology.

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