NY Maintenance & Child Support Calculator

Estimate New York maintenance and child support with income, deductions, child count, guideline percentages, income caps, and monthly obligation details.

838.8K uses Updated · 2026-05-20 Runs locally · zero upload
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How to Use NY Maintenance & Child Support Calculator

The NY Maintenance & Child Support Calculator helps estimate two related New York family law figures: guideline maintenance and basic child support. Enter the annual income for each party, then add annual deductions that should be excluded from the simplified income base. Add the number of children, choose whether to calculate maintenance, and choose whether to apply the CSSA income cap.

If you want the tool to estimate maintenance, keep the guideline method selected. If you already have a proposed annual maintenance amount, switch to the manual method and enter that amount. The NY Maintenance & Child Support Calculator then adjusts the parents’ incomes for maintenance before estimating basic child support, income shares, annual support, and monthly support.

Formula & Theory - NY Maintenance & Child Support Calculator

The NY Maintenance & Child Support Calculator uses simplified versions of the statutory concepts:

Guideline maintenance ≈ min(20% of payor income - 25% of recipient income,
                            40% of combined income - recipient income)

Combined parental income = adjusted payor income + adjusted recipient income
CSSA basic child support = CSSA income used × child percentage
Non-custodial obligation = CSSA basic child support × non-custodial income share

The child percentages used are 17% for one child, 25% for two children, 29% for three children, 31% for four children, and at least 35% for five or more children. The calculator also provides a rough maintenance duration range based on marriage length bands.

Assumptions and Limits

This calculator is intentionally simplified. It does not adjudicate imputed income, add-on expenses, health insurance premiums, childcare, education costs, tax filing status, credits, self-employment adjustments, or deviations. New York courts may also apply caps differently and can order amounts above or below guideline results.

Use Cases for NY Maintenance & Child Support Calculator

The NY Maintenance & Child Support Calculator is helpful for early financial planning around divorce, separation, or child support discussions.

  • Settlement preparation - Estimate possible monthly support before negotiation.
  • Scenario comparison - Test different incomes, deductions, custody assumptions, and caps.
  • Budget planning - Convert annual guideline figures into monthly numbers.
  • Attorney conversations - Bring organized assumptions to a family law consultation.

Use the NY Maintenance & Child Support Calculator as a starting point, then confirm the analysis with a qualified New York family law professional.

Frequently asked questions about NY Maintenance & Child Support Calculator

Is the NY Maintenance & Child Support Calculator legal advice?

No. The NY Maintenance & Child Support Calculator is an educational estimate only and does not replace advice from a New York family law attorney.

Does the calculator include the CSSA income cap?

Yes. You can apply a simplified New York CSSA income cap or turn it off to model income above the cap.

Is my data stored?

No. All calculations happen in your browser; nothing is sent to a server.

Can a court order a different amount?

Yes. Courts can adjust support based on statutory factors, add-ons, custody facts, health insurance, childcare, and the needs of the parties and children.