Child Support in Solano County, California

Solano County sits in the Bay Area's northern reach. Its family courts and Local Child Support Agency handle support matters for families in Vallejo, Fairfield, and Vacaville, all through the Superior Court of California, County of Solano.

Child support in California follows one statewide guideline formula (Family Code section 4055), based mainly on both parents' net disposable incomes and the share of time the child spends with each parent, the timeshare. The guideline amount is presumed correct, and it works no differently in Solano County than anywhere else in California.

Support gets ordered in two common ways. Either parent can file a Request for Order (Form FL-300) with an Income and Expense Declaration (Form FL-150) inside a divorce, parentage, or custody case, or the county's Local Child Support Agency, part of the California Department of Child Support Services, can open a case to establish and enforce support. The forms are statewide, so what varies locally is administrative.

Because the number turns on income and timeshare, estimating early helps. Our free California Guideline Child Support Calculator at /tools/california-child-support-calculator gives you a starting figure, and parents who agree can submit a written stipulation for a judge to sign.

How child support is calculated in California

California sets child support with a statewide uniform guideline (Family Code section 4055) that applies the same way in Solano County as everywhere else. The formula is based mainly on two things:

1. Both parents' net disposable incomes.
2. The percentage of time the child spends with each parent (the timeshare).

The guideline amount is presumed to be correct, and courts use a calculator to run the numbers. Because the result depends on accurate income, the Income and Expense Declaration (Form FL-150) you file is what drives your number.

Where child support cases are handled in Solano County

Child support in Solano County is handled through the Superior Court of California, County of Solano, with the county seat in Fairfield, and the county's Local Child Support Agency, which is part of the California Department of Child Support Services. There are two common paths:

1. Either parent files a Request for Order (Form FL-300) with an Income and Expense Declaration (Form FL-150) inside a divorce, parentage, or custody case.
2. The Local Child Support Agency opens a case to establish, collect, and enforce support, often at no cost to the parents.

Because courthouse locations and the local agency office change over time, confirm current details using the official California Courts court finder:

Find the Solano County Superior Court (official California Courts finder)

Local notes for Solano County

Because Solano County covers a larger population, confirm which courthouse and agency office serve your area before you file. Confirm the correct courthouse using the official California Courts court finder, and find the county agency through the California Department of Child Support Services, before you file in person or by mail.

The county's self-help center helps parents who represent themselves complete Form FL-150 and understand court procedure, but staff cannot give legal advice about your specific case. Because the guideline result is driven by the income you report, filling out the Income and Expense Declaration accurately is the most important step.

Under California law, support usually lasts until the child turns 18, or 19 if the child remains a full-time high school student living at home and is not self-supporting. When circumstances change, such as a shift in income or timeshare, either parent can request a modification.

Solano County Child Support FAQs