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How much does it cost to adopt in California?

Filing an adoption petition in California costs $20 per child under Health and Safety Code §103730 — one of the lowest court filing fees in this entire guide. The court's fee is deliberately trivial; the real court-connected cost sits next to it, in the mandatory investigation: for a stepparent adoption the petitioner's liability for the investigation and related costs is capped at $700 by Family Code §9002, and the court sets the actual amount within that cap.

California adoption fees at a glance

The $20 line is row 103 of the Judicial Council's Statewide Civil Fee Schedule, and it is waived entirely for agency adoptions on the schedule's own terms. Everything else in a California adoption budget is either capped (the stepparent investigation), schedule-set by the investigating agency (agency and independent adoptions under Fam. Code §8810), or market-priced (attorney and home-study services in private arrangements). The national picture is on the adoption filing costs hub, and California's wider family fees are on the California court costs guide.

Stepparent adoption — the most common California case

A stepparent (or domestic-partner) adoption under Family Code §§9000–9007 formalises an existing household: petition, consent of the custodial parent, consent or termination of rights of the other parent, a streamlined investigation under §9001, and a hearing. Section 9002 makes the petitioner liable for the reasonable costs of that investigation up to $700 — many counties set their charge well below the cap, and the statewide fee schedule lists the figure as an amount set by court, not a flat $700. Crucially, §9002 lets the court or investigator defer, waive or reduce the charge where payment would cause economic hardship detrimental to the child. A separate, lighter track — stepparent adoption to confirm parentage, for children born to the couple through assisted reproduction or surrogacy — usually needs no investigation or hearing at all and carries the same $20 filing fee.

Agency and independent adoptions

In an agency adoption, the investigation fee is charged under Family Code §8810 by the department or the licensed county or private agency investigating the petition, on that body's schedule rather than the court's — ask for the schedule before the home study begins. Independent adoptions add a Department of Social Services or delegated county investigation on the same statutory footing. Where a child must first be freed from the custody and control of a parent, those proceedings (Fam. Code §§7806, 7841) carry no filing fee on the statewide schedule. Adult adoptions follow the same $20 petition fee with a far simpler consent-based process.

1. Choose the track: stepparent, stepparent-to-confirm-parentage, agency, independent or adult adoption
2. File the Adoption Request (ADOPT-200) and petition with the superior court clerk and pay the fee $20 per child
3. Complete consents (or a freedom-from-custody proceeding, which carries no filing fee) and the investigation for your track stepparent investigation up to $700 cap
4. Attend the adoption hearing, if your track requires one, and receive the Adoption Order (ADOPT-215)
5. Order certified copies and apply for the amended birth certificate through California Vital Records

What adoption really costs beyond the clerk

For an uncontested stepparent adoption, the honest court-connected budget is $20 plus the county's investigation charge within the $700 cap — often a few hundred dollars in total. The budget breaks open only when the case stops being uncontested: terminating a non-consenting parent's rights, locating an absent parent for service or publication, and attorney time in a contested proceeding are all market-priced and are where California adoptions become expensive. None of those figures appears on an official schedule, so none is estimated here. Compare adoption pricing on the adoption filing costs hub and custody pricing in California custody costs.

Can't afford the fee?

Two layers of relief exist. The general court fee waiver (Forms FW-001/FW-003, Gov. Code §68631) covers the $20 petition fee for qualifying filers. Separately and more importantly, Family Code §9002 itself authorises deferral, waiver or reduction of the stepparent investigation charge on hardship grounds — raise it with the investigator or the court at the outset, not after the bill arrives. The general mechanics are explained in the fee waiver guide.

Sources: California Statewide Civil Fee Schedule (Judicial Council) — petition for adoption $20 per child, Health & Saf. Code §103730 (waived for agency adoptions); freedom-from-custody filings no fee, Fam. Code §§7806, 7841; stepparent adoption costs set by court up to the statutory cap · Fam. Code §9001 (stepparent investigation), §9002 (cost liability capped at $700; hardship deferral/waiver/reduction), §8810 (agency investigation fee) · California Courts Self-Help — stepparent adoption to confirm parentage ($20 filing fee; ADOPT-200/215). Last verified: October 2026 — confirm your county's investigation charge with the superior court clerk.