California Custody Calculator
Understanding California's timeshare formula and how parenting time directly affects child support calculations.
What This Means
California uses a sliding scale "timeshare" formula rather than a fixed threshold:
- No hard threshold: Instead of a cutoff, California calculates support based on the exact percentage of time each parent has.
- H% factor: The higher earner's percentage of time is factored directly into the support calculation.
- More time = less support: As the higher earner's time increases, their support obligation decreases proportionally.
How California Calculates Support
California uses a complex algebraic formula that factors in:
- Each parent's net disposable income
- The percentage of time with each parent (H%)
- Tax filing status and deductions
- Number of children
The DissoMaster and XSpouse software tools are commonly used to calculate California child support.
Timeshare Impact Examples
| Schedule | Timeshare % | Impact on Support |
|---|---|---|
| Every other weekend | ~14% | Minimal reduction |
| EOW + 1 weeknight | ~27% | Moderate reduction |
| 4-3 schedule | ~43% | Significant reduction |
| 2-2-3 / 50-50 | 50% | Maximum reduction |
California Resources
This information is for educational purposes only and does not constitute legal advice. Consult with a California family law attorney for guidance on your specific situation.
Frequently Asked Questions
Does California have a shared custody threshold?
No. California uses a sliding scale formula where every percentage point of parenting time affects the support calculation. There's no single threshold that triggers a different worksheet.
What is H% in California child support?
H% refers to the higher-earning parent's percentage of time with the children. This factor is used in California's guideline child support formula.
How is timeshare calculated in California?
Timeshare is typically calculated based on the percentage of overnights each parent has over a year. Some courts also consider waking hours.
Calculate Your California Custody Schedule
See your exact timeshare percentage and understand how it affects your California child support calculation.
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