Sibling Trust Disputes in California

When siblings disagree over a parent's trust in California, the Probate Code decides what each of them may do: a beneficiary can request information and often an account, challenge the trust within strict deadlines, and ask the Superior Court to compel, remove or surcharge a trustee, while a sibling-trustee is bound by duties of loyalty, impartiality and disclosure.

A parent has died, or can no longer manage their own affairs, and one of the children now controls the trust. Perhaps the house has not been sold, the account statements stopped arriving, or a trust amendment signed in the last year of a parent's life left one sibling with much more than the others. Perhaps the reader is the sibling who agreed to serve as trustee and is now being accused of hiding money. In each version, the person on this page is carrying grief and a family conflict at the same moment, and is trying to work out what the law actually permits before anything is said that cannot be taken back.

This page explains how California law treats these disputes. It covers what each party may demand or must provide, the disagreements that most often divide siblings, the deadlines that matter, and what a court may order against a trustee.

When a Parent's Trust Becomes a Sibling Dispute

These disputes usually begin with a change of control. A revocable trust is a trust the person who created it (the settlor) could change or cancel while alive. When the settlor dies, that trust, or part of it, generally becomes irrevocable, meaning its terms are fixed. The successor trustee, often one of the children, takes over the assets. From that point the trustee is a fiduciary: someone legally required to act for the benefit of others rather than for themselves.

The triggering events tend to be familiar:

• A revocable trust becomes irrevocable on a parent's death, and one sibling is named sole trustee.
• Distributions are delayed for months or years, or are made unequally among siblings who expected equal shares.
• One sibling received a large gift, a loan or the use of property during the parent's lifetime, and the others question whether it should count against that sibling's share.
• A late-life amendment changed who receives what.

These matters are heard by the Superior Court of California for the county where the trust is administered, in its probate department. Under Probate Code section 17200(a), a trustee or beneficiary of a trust may, generally, petition that court concerning the internal affairs of the trust or to determine whether the trust exists. Section 17200(b) lists proceedings that count as "internal affairs," including construing the trust's language, settling accounts, passing on the trustee's acts, instructing the trustee and compelling the trustee to provide a copy of the trust's terms, and the statute says that list is not exhaustive. A Probate Code 17200 petition is the vehicle for most of what follows on this page.

What California Law Allows Each Party to Do

A trustee owes the beneficiaries a set of duties that do not depend on whether the siblings get along. Under Probate Code section 16002, the trustee must administer the trust solely in the interest of the beneficiaries. Under section 16003, where there are two or more beneficiaries, the trustee must deal with them impartially, taking into account their differing interests. A sibling-trustee who is also a beneficiary does not get to favor their own share.

Keeping beneficiaries informed. Section 16060 requires the trustee to keep the beneficiaries reasonably informed of the trust and its administration. Section 16061 adds a duty to respond: on a beneficiary's reasonable request, the trustee must provide requested information about the trust's administration that is relevant to that beneficiary's interest, except as section 16069 provides.

Accounting. An account is a formal report of what the trust held, received, spent and distributed over a period. Under section 16062, the trustee must account at least annually, at the termination of the trust and on a change of trustee, but only to each beneficiary to whom income or principal is required, or authorized in the trustee's discretion, to be currently distributed, and subject to the exceptions in sections 16062 and 16064. Not every beneficiary is owed an annual account; a beneficiary whose share is only payable later may not be. Section 16062 also exempts some older trusts created by instruments executed before July 1, 1987.

Waivers. A trust instrument may waive the account, and a beneficiary may waive it in writing (and withdraw that waiver in writing for later transactions). Even so, under section 16064 the court may compel the trustee to account upon a showing that it is reasonably likely that a material breach of the trust has occurred.

Petitions when requests go unanswered. Under section 17200(b)(7), a beneficiary may petition to compel information under section 16061 if the trustee has failed to provide the requested information within 60 days after the beneficiary's reasonable written request and the beneficiary has not received it within the six months before the request. A petition to compel an account is available if the trustee has failed to submit a requested account within 60 days after a written request and no account has been made within the six months before the request. The written request matters: it starts the clock.

For a sibling-trustee, these same rules describe what a court will expect to see. A trustee who has kept records, answered written requests and accounted where required is in a different position from one who has not.

Common Sources of Sibling Inheritance Disputes

Many families reasonably wonder whether their disagreement is a legal claim at all. Not every frustration with a trustee is a breach of trust; a trustee may have discretion the beneficiaries dislike. The disputes that become litigation tend to fall into a few categories.

Self-dealing by a sibling-trustee. Under Probate Code section 16004(a), the trustee has a duty not to use or deal with trust property for the trustee's own profit or for any purpose unconnected with the trust, and not to take part in any transaction in which the trustee has an interest adverse to the beneficiary. Living in the parent's house rent-free, buying trust property, or paying oneself from trust accounts are the kinds of conduct this duty addresses. Section 16004(c) adds that a transaction between the trustee and a beneficiary, occurring while the trust exists or while the trustee's influence remains, by which the trustee obtains an advantage from the beneficiary, is presumed to violate the trustee's fiduciary duties. That presumption shifts the burden of proof to the trustee, and it does not apply to an agreement about hiring or compensating the trustee.

Undue influence and the statutory presumption. Undue influence, broadly, is pressure that overcomes a person's free choice in deciding where their property goes; California defines it by statute. Separately, Probate Code section 21380(a) presumes that a provision making a donative transfer (a gift, including a gift by trust or will) is the product of fraud or undue influence when it benefits certain people, including the person who drafted the instrument, a person in a fiduciary relationship with the transferor who transcribed it or caused it to be transcribed, and a care custodian of a dependent adult, but only if the instrument was executed while the care custodian provided services or within 90 days before or after that period. The presumption affects the burden of proof and may generally be rebutted by clear and convincing evidence, except that it is conclusive for a transfer to the drafter and certain people the statute associates with the drafter. A beneficiary who fails to rebut it bears all costs of the proceeding, including reasonable attorney's fees. This does not mean every gift to a sibling who helped care for a parent is presumed invalid; the presumption applies only to the categories the statute describes.

Whether the trust reflects the parent's intent. Some disputes challenge the document itself: an amendment signed late in life, a question of capacity, or a claim of fraud or forgery. These are trust contests, and strict deadlines can apply, as the next section explains. The mechanics of contesting a trust are covered on a separate page.

No-contest clauses. A no-contest clause is a provision that threatens to reduce or eliminate the share of a beneficiary who challenges the trust. Under Probate Code section 21311(a), such a clause may be enforced only against a direct contest brought without probable cause; against a pleading challenging a transfer on the ground that the property was not the transferor's, but only if the clause expressly says so; and against a creditor's claim or an action on it, again only if the clause expressly says so. Under section 21311(b), probable cause exists if, at the time of filing, the facts known to the contestant would cause a reasonable person to believe there is a reasonable likelihood that the requested relief will be granted after an opportunity for further investigation or discovery. The clause does not automatically disinherit anyone who files.

Taking property in bad faith. Probate Code section 859 provides that if a court finds a person has in bad faith wrongfully taken, concealed or disposed of property belonging to a trust or a decedent's estate, or has taken, concealed or disposed of it by undue influence in bad faith or through elder or dependent adult financial abuse, that person is liable for twice the value of the property recovered. The court may also, in its discretion, award reasonable attorney's fees and costs against that person. Neither the doubled amount nor fees follow from an accusation; each depends on the court's finding.

Trust Contest Deadlines Under California Law

Probate Code section 16061.8 sets the deadline that most often catches families off guard. A person served with the trustee's notification under section 16061.7(a)(1) may not bring an action to contest the trust more than 120 days from the date the notification is served on that person, or 60 days from the date a copy of the trust's terms is delivered to that person during that 120-day period, whichever is later. The first period is triggered by service of the notification; the second by delivery of the trust terms within those 120 days. The clock does not run from the date of death, and not every trust contest is governed by this deadline.

The trustee's notification is a written notice the trustee must serve in the events section 16061.7(a) lists, including when a revocable trust or part of it becomes irrevocable because of a settlor's death, whenever the trustee of an irrevocable trust changes, and when a power of appointment retained by a settlor takes effect or lapses at death in certain trusts. A sibling who received that notice and has been unsure what it meant has a date to identify: the date it was served.

Breach-of-trust claims run on a different clock. Under Probate Code section 16460(a), unless the claim is already barred by adjudication, consent or otherwise, a claim for breach of trust is barred as to a beneficiary who received an interim or final account or other written report that adequately discloses the claim, unless a proceeding is commenced within three years after receipt of that account or report. Where no account or report adequately discloses the claim, or none is received, the three years run from when the beneficiary discovered, or reasonably should have discovered, the subject of the claim. A report "adequately discloses" a claim if it gives enough information that the beneficiary knows of it or reasonably should have inquired.

Removing a Sibling-Trustee: What the Probate Code Allows

Probate Code section 15642(a) allows a trustee to be removed in accordance with the trust instrument, by the court on its own motion, or on petition of a settlor, cotrustee or beneficiary under section 17200. The grounds for removal by the court, under section 15642(b), include a breach of trust; insolvency or other unfitness to administer the trust; hostility or lack of cooperation among cotrustees that impairs administration; the trustee failing or declining to act; and compensation that is excessive under the circumstances. That list is not complete. Where two siblings serve as cotrustees and cannot work together, the hostility ground is often the one at issue.

Removal is one remedy among several. If a trustee commits or threatens to commit a breach of trust, section 16420(a) allows a beneficiary or cotrustee to commence a proceeding, as appropriate, to compel the trustee to perform their duties; to enjoin (court-order a stop to) a breach; to compel the trustee to redress a breach by payment of money or otherwise; to appoint a receiver or temporary trustee to take possession of the trust property and administer the trust; to remove the trustee; subject to section 18100, to set aside the trustee's acts; to reduce or deny the trustee's compensation; subject to section 18100, to impose an equitable lien or a constructive trust (an order treating specific property as held for the trust's benefit); and, subject to section 18100, to trace wrongfully disposed trust property and recover it or its proceeds. Under section 16420(b), these remedies do not prevent resort to any other appropriate remedy. While a petition is pending, section 17206 lets the court make any orders necessary or proper to dispose of the matters before it, including appointing a temporary trustee to administer the trust in whole or in part.

Surcharge. A surcharge is a money judgment against the trustee personally. Under section 16440(a), a trustee who commits a breach of trust is chargeable with whichever is appropriate under the circumstances: any loss or decline in value of the trust estate resulting from the breach, with interest; any profit the trustee made through the breach, with interest; or any profit that would have accrued to the trust estate if the lost profit resulted from the breach. Under section 16440(b), the court may, in its discretion, excuse a trustee who acted reasonably and in good faith under the circumstances as known to the trustee, in whole or in part, if that would be equitable. A sibling-trustee who made an honest mistake is not automatically surcharged.

Compensation. If the trust instrument does not set the trustee's compensation, section 15681 entitles the trustee to reasonable compensation under the circumstances. Under section 15686(b), a trustee may not charge an increased trustee's fee without first giving at least 60 days' written notice to each beneficiary entitled to an account under section 16062, each beneficiary given the last preceding account, and each beneficiary who has requested notice in writing and given an address. Under section 15686(c), if a beneficiary files a section 17200 petition to review the increase or remove the trustee and serves it on the trustee before the 60 days expire, the increase does not take effect until the court orders otherwise or the petition is dismissed.

For a beneficiary watching a sibling hold the trust's assets, and for a sibling-trustee who feels unfairly accused, these provisions mark out the same ground: what must be shown, and what a court may do once it is shown. An overview of California trust litigation more broadly covers how these petitions fit together.

What This Site Does — and Does Not — Cover

This site covers disputes: trust contests, trustee misconduct, beneficiary rights, removal proceedings, breach-of-trust claims and related inheritance conflicts in California.

This site is not the right starting point for someone who needs a trust or will drafted, who is administering an estate or trust where no one disagrees about anything, or who has a question governed by another state's law. A dispute over trust assets in a divorce is also outside its scope.

Nothing on this site states a fee, cost figure, case result, success rate or prediction of how any dispute will turn out.

Discussing a Sibling Trust Dispute

Disputes between siblings turn on details that are easy to lose in a family argument: the date a trustee's notification was served, whether a written request for information was ever sent, what the last account disclosed, and when an amendment was signed and by whom it was drafted. A consultation about this kind of dispute typically looks at the trust and any amendments, the notification and accounts received, correspondence with the trustee, and the record of distributions and transactions. For a reader whose family simply needs a trust drafted or an undisputed estate settled, this site is not the place to begin.

To discuss a dispute like this with an attorney, request a consultation about your dispute through California Trust Litigation Lawyers.