Trust Bank and Investment Account Disputes in California
Last updated October 9, 2026
The issue in brief
When a bank or brokerage account is fought over in a California trust dispute: section 850 petitions, compelled accounts, 16004 self-dealing, and the deadlines.
A trust bank or investment account dispute in California is a fight over who owns an account, who may control it, or what a trustee did with it. California law lets beneficiaries demand information and accountings, lets a court decide whether an account belongs to the trust, and lets a court order repayment or remove a trustee who breached a duty.
These disputes rarely start with a lawsuit. They start with a statement that stops arriving, a brokerage account that was supposed to be in the trust but was not, a sibling who became trustee and went quiet, or a balance that looks very different from what a parent described before they died. Most people facing a dispute like this are trying to answer two questions at once: whether something actually went wrong, and whether the law gives them any way to find out. This page walks through how California treats these accounts, what each party is allowed to do, what a court can order, and the deadlines that apply.
When a Bank or Investment Account Becomes Part of a Trust Dispute
The first question in almost every account dispute is how the account was titled, because that decides which rules apply. An account held in the trust's name, with the trustee as account holder, is trust property, and the trustee manages it under the trustee's fiduciary duties. An account that merely names the trust as the beneficiary to receive the funds at death is different: the money moves into the trust only at death, and the fight is often about whether that designation was valid or changed. A joint account raises yet another question. Under Probate Code section 5302, and subject to section 5040, sums remaining in a joint account at a party's death belong to the surviving party or parties as against the decedent's estate unless there is clear and convincing evidence of a different intent.
Funding gaps produce a recurring type of dispute. A settlor (the person who created the trust) may have signed a trust that described an account as trust property but never retitled the account itself. When that happens, an interested person can ask the court to decide that the account belongs to the trust. Probate Code section 850 identifies the persons who may file a petition for an order under its part of the Code, and in trust litigation this procedure is commonly called a Heggstad petition. The court decides the ownership question on the documents and the evidence of what the settlor intended.
Broader questions go through Probate Code section 17200(a), which generally allows a trustee or beneficiary of a trust to petition the court concerning the internal affairs of the trust or to determine whether the trust exists, except as section 15800 provides. The proceedings section 17200(b) lists are not exhaustive; they include construing the trust instrument, determining the existence of any power, duty or right, determining the validity of a trust provision, and deciding who receives property when the trust ends. A Probate Code 17200 petition is the usual vehicle for most of the account disputes described below.
These cases are heard by the Superior Court of California for the county where the trust is administered. That court, sitting in its probate role, decides account ownership, compels information and accountings, and orders remedies.
What California Law Allows Each Party to Do
A trustee has a duty to keep the beneficiaries reasonably informed of the trust and its administration under Probate Code section 16060. That duty is general and ongoing, and it often matters most when an account is the trust's main asset.
On reasonable request, the trustee must report requested information about the trust's administration that is relevant to the requesting beneficiary's interest, under Probate Code section 16061, except as section 16069 provides. In an account dispute, a request typically targets statements, transaction histories, transfers out, and the reasons for them.
The duty to account is narrower than many beneficiaries assume. Under Probate Code section 16062, the trustee must account at least annually, at the termination of the trust, and upon 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. An account is the trustee's formal report of what came in, what went out, and what remains. Not every beneficiary is owed an annual account. Under Probate Code section 16064, the trust instrument or a beneficiary's own writing can waive the account, but even then 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.
When requests go unanswered, Probate Code section 17200(b)(7) supplies two petitions:
- Petition to compel information: available 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 the information within the six months preceding the request.
- Petition to compel an account: available if the trustee has failed to submit a requested account within 60 days after written request, and no account has been made within the six months preceding the request.
These tools work in both directions. A trustee who has provided statements and accounts has a record to point to, and a beneficiary who has asked in writing has a record of the request. The court looks at both.
Unauthorized Transfers, Misappropriation, and the Trustee's Fiduciary Duties
For a beneficiary looking at a withdrawal that seems to have no purpose, the core rule is the duty of loyalty. Under Probate Code section 16004(a), a 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. Moving trust funds into a personal account, paying personal bills from a trust account, or lending trust money to oneself are the kinds of conduct this section addresses. A transfer that looks suspicious can also have a legitimate explanation, such as a tax payment, a reimbursed expense, or a distribution the trust authorizes, which is why the records matter.
Section 16004(c) shifts the burden in one setting. A transaction between the trustee and a beneficiary, made during the trust or while the trustee's influence over the beneficiary remains, by which the trustee obtains an advantage from the beneficiary, is presumed to violate the trustee's fiduciary duties. This is a presumption affecting the burden of proof, meaning the trustee must show the transaction was fair. It does not apply to an agreement between the trustee and a beneficiary about the trustee's hiring or compensation.
Investment accounts carry an added duty. Under Probate Code section 16047, a trustee must invest and manage trust assets as a prudent investor would, using reasonable care, skill and caution, and individual decisions are judged in the context of the portfolio as a whole rather than in isolation. A single losing position does not by itself show a breach.
When a trustee commits or threatens to commit a breach of trust, a beneficiary or cotrustee may bring a proceeding under Probate Code section 16420(a) for the appropriate purposes, including to compel the trustee to perform the trustee's duties, to enjoin a breach, to compel redress by payment of money or otherwise, to appoint a receiver or temporary trustee, to remove the trustee, to set aside the trustee's acts (subject to section 18100), to reduce or deny the trustee's compensation, to impose an equitable lien or constructive trust on trust property (subject to section 18100), and to trace and recover wrongfully disposed property (subject to section 18100). A constructive trust is a court order treating property as held for its rightful owner. These remedies do not prevent resort to any other appropriate remedy.
Money liability is measured by Probate Code section 16440(a): a trustee who commits a breach of trust is chargeable with whichever is appropriate of any resulting loss or depreciation in value, 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 loss of profit resulted from the breach. This charge is called a surcharge, and it is not automatic. Under section 16440(b), the court in its discretion may excuse a trustee who acted reasonably and in good faith under the circumstances as known to the trustee, in whole or in part, if it would be equitable to do so.
Probate Code section 859 adds a heavier consequence in narrower cases. If a court finds that 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, the person is liable for twice the value of the property recovered by an action under that part. The court may also, in its discretion and except as otherwise required by law, award reasonable attorney's fees and costs against that person. Neither the double recovery nor the fees follows without that finding.
Donative Transfers to Caregivers and Others: The Presumption Under Probate Code Section 21380
A late change that redirects an account to someone outside the family is often what brings people to this question. Under Probate Code section 21380(a), a provision of an instrument making a donative transfer (a gift) to certain people is presumed to be the product of fraud or undue influence. Those people include the person who drafted the instrument; a person who transcribed it or caused it to be transcribed and who was in a fiduciary relationship with the transferor at the time; and a care custodian of a transferor who is a dependent adult, but only if the instrument was executed during the period the care custodian provided services to the transferor or within 90 days before or after that period.
The presumption affects the burden of proof. The person receiving the gift can rebut it with clear and convincing evidence, a demanding standard. The presumption is conclusive, meaning it cannot be rebutted, for a transfer to the drafter and to the people section 21380(c) associates with the drafter. A beneficiary who fails to rebut the presumption bears all costs of the proceeding, including reasonable attorney's fees.
The presumption is limited to the people the section describes. It does not make every gift to a caregiver, relative or helper invalid, and a family member who helped a parent with banking is not automatically covered by it. Undue influence claims outside the presumption are still possible, but they are proved on their own evidence. Challenges that attack the trust document itself are covered in the page on how to contest a trust.
Trustee Removal and Court Oversight of Trust Accounts
Removal is the remedy that matters most to a beneficiary who believes the account is still at risk. Under Probate Code section 15642(a), a trustee may 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 section 15642(b) lists for court removal include a breach of trust; the trustee being insolvent or otherwise unfit to administer the trust; hostility or lack of cooperation among cotrustees that impairs administration; the trustee failing or declining to act; and the trustee's compensation being excessive under the circumstances. The list is not exhaustive.
A case can take time, and the account does not sit untouched while it proceeds. Probate Code section 17206 allows the court, in its discretion, to make any orders and take any action necessary or proper to dispose of the matters presented by the petition, including appointing a temporary trustee to administer the trust in whole or in part. A temporary trustee or receiver can take control of disputed accounts pending a decision.
Compensation disputes often travel with account disputes. If the trust instrument does not specify the trustee's compensation, the trustee is entitled to reasonable compensation under the circumstances under Probate Code section 15681. Under section 15686(b), a trustee may not charge an increased trustee's fee without first giving at least 60 days' written notice to the beneficiaries that section lists, including 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 section 17200 petition challenging the increase is served before that notice period expires, the increase is held back until the court orders otherwise or the petition is dismissed.
Deadlines That Govern Trust Account Disputes in California
Two different clocks can apply, and confusing them is one of the more common problems in these cases.
Trust contests. Under Probate Code section 16061.7(a), a trustee must serve a notification in the events that section lists, including when a revocable trust becomes irrevocable because of a settlor's death and whenever the trustee of an irrevocable trust changes. Under Probate Code section 16061.8, a person served with the notification under section 16061.7(a)(1) cannot 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 clock is triggered by service of the notification and by delivery of the terms, not by the death itself.
Breach of trust. Under Probate Code section 16460(a), a claim for breach of trust is barred unless a proceeding is commenced within three years after the beneficiary receives an interim or final account, or other written report, that adequately discloses the existence of the claim. 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. An account adequately discloses a claim if it gives enough information that the beneficiary knows of the claim or reasonably should have inquired into it.
Which clock applies depends on whether the dispute attacks the trust document or the trustee's conduct, and some disputes involve both.
What This Site Covers
This site is about disputes. It does not offer estate-planning help, it is not the place to set up, fund or amend a trust, and it is not built for administering a trust when nobody disagrees about anything. It also does not address consumer banking problems such as card charge disputes, fraud refunds or bank customer service. Not every disagreement with a trustee is a breach, either; a trustee who declines a distribution the trust leaves to the trustee's discretion may be acting within the trust's terms. More background on how these cases proceed appears on the page about California trust litigation.
Discussing a Trust Account Dispute
Account disputes turn on paper: how the account was titled, what the trust instrument says about it, when statements and accounts were requested and received, which transfers were made and by whom, and when the trustee's notification was served. A consultation about a dispute like this typically looks at those documents and dates alongside the conduct in question, and an attorney can say which petition and which deadline apply. Readers whose question is about creating or updating a trust, rather than a dispute over one, will find this site is not built for that. To discuss a trust bank or investment account dispute with an attorney, request a consultation about your dispute through California Trust Litigation Lawyers.
Related disputes
Frequently asked questions
How difficult is it to contest a trust in California?
It depends on the grounds. A claim that an account belongs to the trust, a breach-of-duty claim over transfers, and a challenge to the trust document under section 21380 each have their own procedure and burden of proof. A formal contest by a person served with the trustee's notification must be brought within 120 days of service or 60 days after delivery of the trust terms during that period, whichever is later.
Can a beneficiary demand records about a trust bank account?
Yes. Under Probate Code section 16061, the trustee must provide requested information relevant to the beneficiary's interest on reasonable request, except as section 16069 provides. If the trustee fails to provide it within 60 days after a reasonable written request and the beneficiary has not received it in the preceding six months, the beneficiary may petition under section 17200(b)(7).
What happens if a trustee transfers trust account funds to themselves?
Probate Code section 16004(a) bars a trustee from using trust property for personal profit or in a transaction adverse to the beneficiary, and section 16004(c) presumes a breach when the trustee gains an advantage from a beneficiary. Remedies under section 16420(a) include compelling repayment, a constructive trust and removal. A surcharge under section 16440 is not automatic.
What is a Probate Code section 850 petition and when does it apply to a bank account?
It is the petition, often called a Heggstad petition, used to ask the Superior Court of California to determine that a particular asset belongs to the trust, typically an account the trust described as trust property but that was never retitled in the trust's name before the settlor died.
Can a court remove a trustee who mismanaged a trust account?
Yes. Under Probate Code section 15642, the court may remove a trustee on petition of a settlor, cotrustee or beneficiary under section 17200, on grounds including a breach of trust. While the case is pending, the court may appoint a temporary trustee under section 17206.
Is there a deadline to bring a breach-of-trust claim over a trust account in California?
Yes. Under Probate Code section 16460(a), the claim must be brought within three years after the beneficiary receives an account or written report that adequately discloses it, or, if no such account or report discloses it or none is received, within three years after the beneficiary discovered or reasonably should have discovered the subject of the claim.
Does a no-contest clause prevent a beneficiary from disputing a trust account transfer?
Not always. Under Probate Code section 21311(a), a no contest clause may be enforced only against a direct contest brought without probable cause and, only if the clause expressly says so, a pleading claiming property was not the transferor's or a creditor's claim. Probable cause exists if the facts known at filing would cause a reasonable person to believe there is a reasonable likelihood the relief will be granted after further investigation or discovery.
What if a caregiver or helper was named to receive trust account funds?
A gift to a care custodian of a dependent adult, in an instrument executed while the care custodian provided services or within 90 days before or after, is presumed under Probate Code section 21380 to result from fraud or undue influence. The presumption can be rebutted by clear and convincing evidence. Not every gift to a caregiver or helper falls within it.
Questions About a Trust or Estate Dispute?
Trust and probate disputes are personal, and often painful. Our attorney is here to listen to what's happening in your family and answer your questions in plain language. Call or send us a message.
Reviewed by Russell E. Griffith, Esq.
California Trusts & Estates Attorney
California State Bar No. 120564
Licensed in California Since 1985
California Western School of Law
