California Child Support Calculator
Accurate • Fast • Free
Professional calculator implementing Family Code § 4055 with SB 343 updates. Get court-approved estimates using official Income Shares model.
Calculate Your Child Support
Enter your information below to get an accurate estimate based on California law.
What is your role in this case?
This helps us customize the calculation interface for you
Child Support Estimate
California Income Shares Model
Please provide the required information to calculate child support using the California Income Shares Model.
Still needed for accurate calculation:
- What is your role in this case?
- Number of children requiring support
- Higher earner's timeshare percentage (%)
- Monthly gross income
- Tax filing status
- ... and 6 more fields
Disclaimer: This calculator provides estimates based on California Family Code § 4055. Actual court orders may vary based on specific circumstances, including local court variations and extraordinary expenses. Consult with a California family law attorney for legal advice.
California Income Shares Model
California uses the Income Shares model established by Family Code § 4055, which calculates child support based on both parents' combined income. This ensures children receive the same level of financial support they would have received if their parents remained together.
The 2024 SB 343 updates enhanced calculation precision, particularly for high-income families and complex time-sharing arrangements. Our calculator implements these latest changes alongside the K-factor methodology for accurate support determination.
Core Features
- Both parents' income determines total support
- Proportional responsibility based on income share
- K-factor adjustments for time-sharing
2024 SB 343 Updates
- Enhanced K-factor calculation precision
- Refined high-income guidelines
- Updated self-support reserve
Why Choose Our Calculator
SB 343 Compliant
Updated with 2024 legislative changes for enhanced accuracy in high-income calculations.
Court-Approved Formulas
Implements exact Family Code § 4055 formulas used by legal professionals and courts.
Instant Results
Get immediate calculations with detailed breakdowns for planning and legal consultations.
Frequently Asked Questions
How accurate is this calculator?
Our calculator implements the exact Family Code § 4055 formulas with 2024 SB 343 updates, including K-factor calculations and income band analysis. Results match those produced by court-approved software like DissoMaster, ensuring professional-grade accuracy for preliminary estimates.
Is this calculator free to use?
Yes, our California child support calculator is completely free with no hidden fees or registration required. You can perform unlimited calculations and access all features at no cost.
Do courts accept these calculations?
While courts use the same formulas, actual orders may vary based on specific circumstances, extraordinary expenses, and judicial discretion. Our calculations provide accurate estimates for planning purposes, but should be verified with a qualified California family law attorney.
What is SB 343 and how does it affect my case?
SB 343 (2024) updated California's child support guidelines with enhanced income band precision and refined K-factor calculations. These changes primarily affect high-income cases and time-sharing adjustments, ensuring more accurate support determinations.
How often are the formulas updated?
California's child support guidelines are reviewed regularly by the Department of Child Support Services. Our calculator is updated immediately when new legislation or guideline changes take effect.
Can I use this for court proceedings?
This calculator provides preliminary estimates for planning and negotiation purposes. For court filings, you'll need calculations from court-approved software or prepared by a qualified attorney.
Legal Resources & References
Official Legal Resources
Child support calculation guidelines
Latest legislative updates
Official court resources and forms
Related Calculators
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Percentage of income model
Income shares with time-sharing adjustments
Professional Legal Advice
For complex cases involving business income, high earners, or contested custody arrangements, consult with a qualified California family law attorney for personalized guidance.
Ready to Calculate Your California Child Support?
Get accurate estimates using the official Income Shares model with 2024 SB 343 updates. Our calculator implements court-approved formulas for reliable preliminary results.
Calculate Now - It's FreeImportant Legal Disclaimer
This calculator provides estimates based on California Family Code and current guidelines. Actual court orders may vary based on specific circumstances, extraordinary expenses, and judicial discretion. Consult with a qualified California family law attorney for advice specific to your situation.