A guardianship of a minor’s estate in California is a court-supervised arrangement in which a judge appoints an adult to hold and manage a child’s money or property until the child turns 18. It becomes necessary once a child’s assets exceed $5,000, and it comes with a formal petition, a surety bond, an inventory, and ongoing accountings that continue for as long as the guardianship lasts.
When You Actually Need One
California lets a parent receive up to $5,000 in total property on a child’s behalf without any court proceeding, provided the parent signs a sworn statement that the child’s total estate stays within that limit.1California Legislative Information. California Probate Code 3400-3402 – Total Estate Not in Excess of $5,000 Above that, someone needs court authority.
The situations that most often push a child past the threshold are inheritances (through a will, a trust, or California’s intestacy rules), life insurance proceeds naming the child as beneficiary, personal injury or wrongful death settlements, and large gifts of cash, real estate, or investments from a relative. Banks, brokerages, and insurance companies will not release meaningful sums directly to a child or even to the child’s parent. They want to see court-issued Letters of Guardianship first, which means the money sits frozen until the process is complete.
Lighter Alternatives to Consider First
Full guardianships bring ongoing court supervision, annual bond premiums, and accounting work. For smaller or simpler holdings, California offers two lighter tools.
Blocked Accounts
A court can order that a minor’s funds be deposited into a blocked account at a California financial institution, or into a single-premium deferred annuity, with no withdrawals allowed except by court order. For amounts up to $20,000, the court has broad discretion to impose whatever conditions it thinks best for the child, without appointing a guardian at all.2California Legislative Information. California Probate Code 3413 A parallel statute applies the same framework to settlement proceeds.3California Legislative Information. California Probate Code 3611 This route works well when money simply needs to sit safely until the child turns 18.
UTMA Custodianship
A court can also order that funds be transferred to a custodian under the California Uniform Transfers to Minors Act. A UTMA custodian manages the assets without ongoing court accountings or a surety bond, and turns over what remains when the child reaches 18. Certain transfers made through a will or trust can extend the arrangement until the child turns 25.2California Legislative Information. California Probate Code 3413 The tradeoff is less court oversight and less protection if the custodian makes poor choices. UTMA assets also count as the child’s own property for college financial aid purposes, which can reduce aid eligibility.
When the estate is large, includes real property, or requires active management decisions, a full guardianship is the right tool. The blocked-account and UTMA routes fit best for straightforward cash that just needs safekeeping.
Who Can Petition and Who Can Serve
Any relative or other person acting on the child’s behalf can file. A minor who is at least 12 can file for themselves. A relative’s immigration status does not affect the right to petition.4California Legislative Information. California Probate Code 1510
When choosing an estate guardian, the judge focuses on the person’s ability to manage and preserve the child’s assets and their genuine concern for the child’s welfare. If the child is old enough to state a meaningful preference, the court considers it.5California Legislative Information. California Probate Code 1514 A person nominated in a deceased parent’s will has priority unless the court finds them unsuitable.
Financial background matters. A history of bankruptcy, fraud, or chronic instability can disqualify a candidate. The court’s investigation usually includes background checks on the proposed guardian and other adults in the household.6California Courts. Guardianship Investigation Where no suitable family member is available, the court can appoint a licensed professional fiduciary.
Filing the Petition
The main form is the Petition for Appointment of Guardian of Minor, Judicial Council Form GC-210, which is mandatory when the estate is involved.7Judicial Council of California. Petition for Appointment of Guardian of Minor Depending on the case, you may also need Attachment GC-210(P), which covers the reasons for the request and details about the estate.
The petition asks for the estimated value of the child’s personal property, any real property, and the anticipated annual gross income from all sources. Describe each asset with enough detail for the court to identify it: account numbers, property addresses, policy numbers. Vague descriptions slow things down.
The Child Information Attachment, Form GC-210(CA), requires the names and addresses of the child’s parents, grandparents, and siblings.8Judicial Council of California. Child Information Attachment to Probate Guardianship Petition The court uses these addresses to notify everyone with a legal right to know about the case. Missing or outdated contact information is one of the most common reasons hearings get continued, so verify addresses before filing. All forms are free from the Judicial Council website and from local court self-help centers.
Fees and the Hearing
Filing costs $435 statewide, or $450 in counties with a courthouse construction surcharge (currently Riverside and San Francisco).9Judicial Council of California. Statewide Civil Fee Schedule Fee waivers are available for petitioners who cannot afford the cost.
After filing, you receive a hearing date and prepare the Notice of Hearing on Form GC-020.10Judicial Council of California. Notice of Hearing — Guardianship or Conservatorship The notice goes to every relative entitled to know. You cannot serve it yourself; someone else has to handle service and sign a proof of service that gets filed with the court.
Before the hearing, a court investigator reviews the case, interviews the proposed guardian, and sometimes speaks with the child. The investigator then submits a report and recommendation to the judge.6California Courts. Guardianship Investigation If the judge approves the appointment, the clerk issues Letters of Guardianship on Form GC-250. That document is your proof of authority. Banks, brokerages, and insurers will require a certified copy before releasing any of the child’s funds.11California Courts. Letters of Guardianship (GC-250)
Posting a Surety Bond
Before Letters issue, the guardian usually has to post a surety bond. It functions as insurance that reimburses the estate if the guardian steals or mismanages funds. The bond amount equals the value of the child’s personal property, plus estimated annual gross income from all estate property, plus anticipated annual public benefit payments.12California Legislative Information. California Probate Code 2320 If the guardian uses personal sureties rather than a licensed surety company, the required amount doubles.
Annual premiums vary with the bond amount and the guardian’s credit, running from a few hundred to over a thousand dollars per year for larger estates. The court can raise or lower the bond as circumstances change. Failing to keep the bond in force is grounds for removal.
Managing the Estate After Appointment
A guardian of the estate owes the child a fiduciary duty of care and undivided loyalty. Every dollar belongs to the child, and every spending decision has to serve the child.
Inventory and Appraisal
Within 90 days of appointment, the guardian files an inventory and appraisal listing every asset and its fair market value as of the appointment date.13California Legislative Information. California Probate Code 2610 – Inventory and Appraisal of Estate Real property and certain non-cash assets require a court-appointed probate referee to set the value. The court can extend the deadline for good cause, but missing it without an extension invites scrutiny.
Ongoing Accountings
One year after appointment, and at least every two years after that, the guardian files a detailed accounting covering every transaction: income received, expenses paid, investments made, and the current value of all assets.14California Legislative Information. California Probate Code 2620 The court can require more frequent reports if it has concerns, and each accounting has to be supported by bank statements, receipts, and other documentation.
Sloppy recordkeeping is where guardians most often get into trouble. Lost receipts, commingled funds, and undocumented cash expenditures can trigger an audit, personal liability for losses, or removal. Keep a dedicated file for every transaction from day one. The court will not accept “I spent it on the child” without proof.
Blocked Accounts as a Management Tool
Even inside a full guardianship, courts often order that estate funds be placed in a blocked account using Form MC-355.15Judicial Council of California. Order to Deposit Funds in Blocked Account No deposits or withdrawals are permitted without a separate court order. This protects the principal but means the guardian has to return to court for any legitimate expense, such as medical bills or tuition, that draws on those funds. If the court allows it, keep some money in a non-blocked account for routine needs.
Taxes You Cannot Ignore
A guardianship estate that generates $600 or more in gross income during a tax year must file a federal fiduciary return, IRS Form 1041, due April 15 for calendar-year estates.16Internal Revenue Service. 2025 Instructions for Form 1041 and Schedules A, B, G, J, and K-1 The child may also owe tax on their own unearned income under the “kiddie tax” rules, which tax a portion of a child’s investment income at the parent’s marginal rate. That treatment affects the choice between growth-oriented investments and interest-bearing accounts. California imposes its own income tax on trust and estate income, so a tax professional is worth the fee, particularly for estates holding investments that generate regular income.
Social Security Benefits Are Separate
If the child receives Social Security survivor benefits or Supplemental Security Income, being appointed guardian of the estate does not give you authority over those payments. The Social Security Administration requires a separate appointment as the child’s representative payee, and that process runs through SSA, not the probate court.17Social Security Administration. Frequently Asked Questions for Representative Payees A court guardianship, a power of attorney, or a joint bank account does not substitute for the payee designation.
Social Security benefits must go into a separate representative payee account titled to reflect the payee relationship, and cannot be commingled with the guardianship estate. If you serve as both guardian and payee, you will keep two sets of accounts and satisfy two reporting obligations: the probate court accountings and the annual Representative Payee Report to SSA.
How the Guardianship Ends
The guardianship of the estate automatically terminates when the child turns 18.18California Legislative Information. California Probate Code 1600 It also ends if the child dies or, in limited situations, if a guardianship of the person is terminated by emancipation. Turning 18 does not end the guardian’s duties overnight.
The guardian files a final accounting covering the period through the termination date and petitions the court for discharge. The now-adult former ward can waive the formal accounting, but the guardian still owes the court a final report. Until the court approves the accounting and formally discharges the guardian, the fiduciary duty continues. Any remaining property is turned over directly to the former ward.
Practical Costs to Plan For
Beyond the $435 filing fee, budget for several recurring and one-time expenses. Attorney fees for preparing and filing the petition typically run several thousand dollars, with the range depending on case complexity and whether relatives contest the appointment. The bond carries an annual premium. Probate referees charge a statutory fee for appraising non-cash assets. If the estate includes real property, maintenance, insurance, and property taxes come out of estate funds.
Guardians can request reasonable compensation, but the court must approve it. Most family-member guardians managing modest estates do not seek payment. Professional fiduciaries always do, and their fees reduce what remains for the child. If you’re considering a professional, ask for a clear fee schedule up front and confirm the estate can absorb those costs without being depleted before the child turns 18.