Estimate only — not legal advice.
This tool provides general information based on California Family Code
§4055 (post-SB 343, operative September 1, 2024). Use of this calculator
does not create an attorney–client relationship and does not constitute
legal advice or the practice of law. Consult a licensed California
family-law attorney for advice on your specific situation.
Only calculators certified by the Judicial Council under California's
AB-1058 program are recognized for use by courts and the Department of
Child Support Services. This tool is not certified and is not a
substitute for one. The court applies the §4055 guideline as a
rebuttable presumption (§4057) and may deviate based on the facts.
© 2026 CleanCalc CA. Free public tool.