☀️

California Child Support Calculator

Income Shares ModelCA
⚠️

Beta Estimate Only

This calculator provides rough estimates for informational purposes only. It is in beta and should not be relied upon as legal advice. Child support calculations involve many factors not captured here. Consult a licensed attorney or your state's child support agency for accurate calculations.

💡

California — Income Shares Model

California uses a complex algebraic Income Shares formula (CA Family Code §4055). It factors in both parents' net disposable incomes, the time each parent spends with the children, and the tax filing status. The formula is: CS = K[HN − (H%)(TN)] where K accounts for time share and combined income allocation.

Uses algebraic formula (§4055)DissoMaster is the standard softwareStatewide uniform guideline

Enter your information

All income amounts should be monthly gross (before taxes) unless noted otherwise.

$

Before taxes. Include salary, bonuses, commissions, rental income, etc.

$

Before taxes. Include salary, bonuses, commissions, rental income, etc.

Children eligible for support in this case (1–6)

$

Monthly cost of adding children to health insurance

$

Work-related childcare, daycare, after-school care

0% (Parent 2 has full custody)50% / 50%100% (Parent 1 has full custody)

≈ 183 / 183 overnights per year

⚠️

Beta Estimate Only

This calculator provides rough estimates for informational purposes only. It is in beta and should not be relied upon as legal advice. Child support calculations involve many factors not captured here. Consult a licensed attorney or your state's child support agency for accurate calculations.

Not in California?

We have child support calculators for all 50 states and Washington DC.

Browse all states →