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Child Support Calculator

Estimate monthly child support payments based on parental income, custody arrangements, and additional child expenses using common state guideline models.

Parental Income

Enter gross monthly income for both parents

Estimate only. Child support calculations vary significantly by state. This uses the Income Shares model (used in ~40 states). Always consult a family law attorney for accurate figures. Not legal advice.
Parent A (Paying Parent / Non-Custodial)

Before taxes, all sources

Parent B (Receiving Parent / Custodial)

Before taxes, all sources

Children & Additional Expenses

Factors Courts Consider

Both incomes

Combined earnings

Custody time

Nights per year

Medical costs

Insurance & bills

Child's needs

Age & lifestyle

Monthly Support
$--
estimated payment
Annual Total
$--
per year
Parent A Share
--%
of combined income
Combined Income
$--
per month

Guidelines by Model

Income Shares~40 states
Pct of IncomeTX, WI, IL…
Melson FormulaDE, HI, MT
Always verifyYour state's rules