Calculator, pay stubs, and notepad

California Child Support: How Numbers Become Orders

A quick tour of guideline support — the inputs, the outputs, and where discretion fits in.

Core inputs

  • Income: W-2 wages, self-employment, bonuses, overtime, and imputed earning capacity in some cases.
  • Timeshare: Percentage of custodial time for each parent.
  • Deductions: Taxes, mandatory retirement, health premiums, and other allowed adjustments.

When numbers shift

Support orders can be modified after a material change: income shifts, new childcare costs, health insurance changes, or significant parenting time adjustments.

Local practice notes

In San Bernardino County, well-documented income (pay stubs, profit-and-loss statements, W-2s/1099s) speeds hearings. Where self-employment is involved, clear expense categorization prevents delays.

Related Reading

Questions About Child Support?

Our Certified Family Law Specialist can help you understand how support is calculated and fight for a fair outcome. Contact us today to schedule a consultation.

Important Disclaimer

This overview is for education, not legal advice. For a tailored analysis, speak with counsel.

Last updated: January 2026