California Child Support Calculator
California Child Support Calculator

Estimate Your California Child Support in Minutes

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Get a confidential estimate based on
California Family Code in under a minute.

California Child Support Calculator

Estimate based on common CA guideline heuristics. For informational purposes only.

Step 1 – Parent & Custody

50%

Estimate the percentage of time the child spends in your care over a full year.

Disclaimer: This calculator is for educational purposes and does not constitute legal advice. Results may differ based on judicial findings and individual circumstances.

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Frequently Asked Questions Regarding
Child Support in California

Discover what you need to know about Child Support Laws in California.

How Does California Calculate Child Support?

How Does California Calculate Child Support?

California uses a statewide guideline formula under Family Code § 4055.

  • Both parents’ gross incomes

  • Parenting Time

  • Each parent’s proportional share of the combined income

Use the Deliberately.ai California child support calculator above for an estimate, but only a court order is legally binding.

What Factors Affect Child Support in California?

What Factors Affect Child Support in California?

Child support amounts depend on income, parenting time, tax considerations, health insurance costs, work-related childcare, and hardship deductions. Disputed income or custody can significantly complicate calculations.

How Much Child Support Will I Pay or Receive?

How Much Child Support Will I Pay or Receive?

There is no standard amount. Child support varies based on income and parenting time under California’s guideline formula. Use the Deliberately.ai calculator above to estimate your obligation or entitlement before filing or negotiating.

When Does Child Support End in California?

When Does Child Support End in California?

Child support typically ends at age 18. If the child is still a full-time high school student and not self-supporting, support may continue until graduation or age 19, whichever occurs first.

Disability cases may follow different rules.

Does Child Support Automatically End at Age 18 or 19?

Does Child Support Automatically End at Age 18 or 19?

Not always. Child support does not automatically terminate in every case. Formal legal steps may be required to stop wage withholding or enforcement.

Can Child Support Be Modified in California?

Can Child Support Be Modified in California?

Yes. A child support order can be modified when there is a material change in circumstances, such as income changes or adjusted parenting time. Modifications usually apply going forward only.

How Long Does a Child Support Modification Take?

How Long Does a Child Support Modification Take?

Uncontested modifications may take weeks or a few months. Contested cases involving self-employment income, custody disputes, or income imputation often take longer.

Do Health Insurance or Medical Payments Reduce Child Support?

Do Health Insurance or Medical Payments Reduce Child Support?

Only if the court includes those costs in the guideline calculation. Paying medical expenses alone does not automatically reduce child support without court approval.

How Is Income Defined for Child Support?

How Is Income Defined for Child Support?

California starts with gross income, including wages, bonuses, commissions, rental income, and self-employment earnings. Courts may impute income if a parent is underemployed or income is inconsistent.

What Happens If Child Support Is Not Paid in California?

What Happens If Child Support Is Not Paid in California?

Unpaid child support may lead to wage garnishment, tax refund interception, license suspensions, liens, and other enforcement actions. Arrears can grow quickly.

How Is Back Child Support Handled in the State of California?

How Is Back Child Support Handled in the State of California?

Child support arrears do not expire and remain enforceable until paid in full. Interest may accrue, and collection may continue even after the child reaches adulthood.

Can Unpaid Child Support Become a Criminal Issue?

Can Unpaid Child Support Become a Criminal Issue?

In certain cases, willful nonpayment may result in criminal charges. These situations are fact-specific and require legal advice from a experience family lawyer from California.

Can Child Support Be Taken from Wages or Bank Accounts?

Can Child Support Be Taken from Wages or Bank Accounts?

Yes. Wage withholding is standard in California. Other enforcement tools may be used depending on the case. Access to bank accounts or retirement funds is highly case-specific.

Does Shared Custody Reduce Child Support in California?

Does Shared Custody Reduce Child Support in California?

It can. Parenting time is a key factor in California’s formula, but income differences still matter. Even with joint custody, support may still be owed.

Can Child Support Continue After Age 19?

Can Child Support Continue After Age 19?

Support may continue for an adult child with a qualifying disability. Court-ordered college support is not automatic in California.

Can Parents Agree to Cancel Child Support in California?

Can Parents Agree to Cancel Child Support in California?

No. Parents cannot privately waive court-ordered child support. Any change must be approved by the court and comply with California law.

Do I Need a Lawyer for Child Support?

Do I Need a Lawyer for Child Support?

A lawyer is not required for basic cases, but legal guidance is strongly recommended for disputes involving income, custody, arrears, or deviations from guideline support.

For an initial estimate, you can use the Deliberately.ai child support calculator above.

What Documents Are Needed for Child Support Cases?

What Documents Are Needed for Child Support Cases?

Common documents include proof of income, tax returns, existing court orders, and records for health insurance and childcare. Missing documents often cause delays.

How Do I File for Child Support in California?

How Do I File for Child Support in California?

Child support cases can be filed through California family courts or local child support agencies. If income, custody, or paternity is contested, speaking with a California family lawyer first can help avoid costly errors.

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