Free, private calculators built on California's statewide guidelines — child support under the 2024 §4055 formula (SB 343) and spousal support.
Private by default · No account needed · Built on California's official guidelines · Not legal advice
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California guideline estimate using the §4055 formula, net incomes, and parenting-time share.
Start FreeIllustrative temporary-support figure, the §4320 factors, and how long support may last.
Start FreeSort community vs. separate property and debts and see the mandatory equal-division baseline.
StartFrom your numbers to a clear, sharable summary in minutes.
Income, children, and the facts of your case — privately, in your browser.
We apply California's own statutory guidelines — no guesswork.
Walk in with the math done and a clear list of what to discuss.
We don’t give legal advice or predict what a judge will do. These calculators turn California’s published guidelines into clear estimates so you can understand the benchmarks governing your case and negotiate with confidence.
California sets child support with a statewide algebraic formula under Family Code §4055. It uses each parent's net disposable income and the higher earner's share of parenting time; the 2024 update (SB 343) refined how the formula treats low incomes and multiple children.
Temporary (pendente lite) spousal support is usually set by a local guideline formula, but long-term support has no formula — a judge weighs the Family Code §4320 factors, so amounts and duration vary widely by county and circumstances.
California is a community-property state with a strong presumption that community property is divided equally (50/50). Each spouse keeps their separate property.
California uses the §4055 guideline formula — CS = K[HN − (H%)(TN)] — based on each parent's net disposable income and the higher earner's parenting-time share. Our free California child support calculator applies the formula and shows every step.
It's each parent's income after taxes and certain §4059 deductions. California support is built on net, not gross — entering gross pay overstates support. Enter the net figure a certified calculator produces to reproduce the result.
Temporary support usually follows a local guideline formula, but long-term support has no formula — a judge weighs the §4320 factors such as marriage length, earning capacity, and standard of living. Our tool gives an illustrative figure and lists the factors.
Yes. California presumes an equal (50/50) division of community property; each spouse keeps their separate property, and community debts are generally shared.
Yes — free, private, and no account. Each tool shows the §4055 math, cites the statute, and builds a prep worksheet. These are estimates, not a court-certified calculator.
Run your numbers here first, then find a California family-law attorney to review your situation and next steps.
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