Under the California Probate Code, a trustee’s duties fall into four core obligations: loyalty to the beneficiaries, impartial treatment among them, prudent investment of trust assets, and ongoing disclosure through notices and accountings. These are enforceable in court, and a trustee who falls short can be ordered to repay losses personally, lose compensation, or be removed from the role.
Duty of Loyalty
Loyalty is the foundation. A trustee must administer the trust solely in the interest of the beneficiaries, not for the trustee personally and not for anyone else.1California Legislative Information. California Code Probate 16002 – Duty to Administer Trust In practice this gets tested whenever a trustee’s own interests brush against the trust’s: steering trust money toward a business the trustee owns, buying trust property at a discount, lending trust funds to a relative.
The Probate Code specifically bars a trustee from using trust property for personal profit, taking part in any transaction where the trustee has a competing interest, or enforcing a claim against the trust that the trustee acquired after (or in anticipation of) becoming trustee. Any deal between the trustee and a beneficiary that gives the trustee an advantage is presumed to violate fiduciary duties, and the trustee carries the burden of proving otherwise.2California Legislative Information. California Code Probate 16004 – Duty of Loyalty That presumption alone has unwound transactions that looked perfectly fine on their face.
One narrow exception: a trustee who manages two separate trusts may sell or exchange property between them, but only if the transaction is fair and reasonable to the beneficiaries of both trusts and the trustee discloses all material facts to everyone involved.1California Legislative Information. California Code Probate 16002 – Duty to Administer Trust
Duty of Impartiality
When a trust has more than one beneficiary, the trustee cannot play favorites. California law requires impartial dealing with all beneficiaries and impartial investment and management, taking their different interests into account.3California Legislative Information. California Code Probate 16003 – Duty of Impartiality
This is where administration gets genuinely hard. A common structure gives a surviving spouse income during life, with children receiving the remaining principal later. A portfolio loaded with high-yield bonds maximizes current income but can erode principal over time. An all-growth-stock portfolio does the opposite. The trustee has to strike a balance that does not sacrifice one group’s interests to the other’s, and be ready to defend that balance if a beneficiary challenges it.
Duty to Invest Prudently
California has adopted the Uniform Prudent Investor Act. A trustee must invest and manage trust assets the way a prudent investor would, considering the trust’s purposes, terms, and distribution needs, and must exercise reasonable care, skill, and caution in doing so.4California Legislative Information. California Code Probate 16045-16054 – Uniform Prudent Investor Act
A few features of this standard catch trustees off guard. Individual investments are not judged in isolation. A single stock that loses value is not automatically a breach; courts look at the portfolio as a whole and whether the overall investment strategy had risk and return objectives that made sense for this trust.4California Legislative Information. California Code Probate 16045-16054 – Uniform Prudent Investor Act The trustee is also expected to diversify unless there is a specific reason not to, and to control costs. Paying excessive investment-management fees when comparable lower-cost options exist does not meet the standard.
Trustees do have broad default authority to deal with trust property, including the power to buy, sell, lease, exchange, or improve assets.5Justia. California Code Probate 16220-16249 – Specific Powers of Trustees Having the authority to act is not the same as acting wisely. Every exercise still has to pass the prudent investor test.
Duty to Inform and Account
Transparency is not optional. A California trustee has a standing duty to keep beneficiaries reasonably informed about the trust and its administration, and must respond to beneficiary requests for information about assets, debts, income, expenses, and the trustee’s actions.6Justia. California Code Probate 16060-16064 – Trustee Duty to Report Information and Account to Beneficiaries
Annual Accountings
Beyond answering questions, a trustee must deliver a formal accounting at least once a year to each beneficiary who is currently receiving, or eligible to receive, distributions of income or principal. The same accounting duty kicks in when the trust terminates and on a change of trustee.7California Legislative Information. California Code Probate 16062 – Duty to Account These are not casual summaries. They need to be detailed enough for a beneficiary to evaluate whether the trustee is doing the job properly.
The trust document cannot always waive this out. If the sole trustee is someone who would be disqualified from receiving a donative transfer under California law, any waiver of the accounting duty in the trust instrument is void as against public policy.7California Legislative Information. California Code Probate 16062 – Duty to Account
The 60-Day Notification When a Trust Becomes Irrevocable
One of the most frequently missed deadlines in California trust administration is the notification required by Probate Code section 16061.7. When a revocable trust becomes irrevocable, typically because the person who created it has died, the successor trustee must serve written notice on all beneficiaries and the deceased person’s heirs within 60 days.8California Legislative Information. California Code Probate 16061.7 – Notification by Trustee The same notification is required on any change of trustee of an irrevocable trust.
The notice is not a courtesy. It must include a specific warning, printed in boldface, telling recipients they have 120 days from the date of the notice to contest the trust, or 60 days from receiving a copy of the trust terms, whichever is later.8California Legislative Information. California Code Probate 16061.7 – Notification by Trustee It also goes to the Attorney General if the trust is a charitable trust under state supervision. Missing the deadline or leaving out the required language can keep the contest window open indefinitely.
Contingent Beneficiaries
People named as future or contingent beneficiaries — those who will receive distributions only if certain conditions are met — do not automatically receive annual accountings. They still have the right to request information about trust finances and administration, and a trustee who ignores those requests invites trouble. A contingent beneficiary can petition the court to order an accounting, replace the trustee, or direct how the trust should be managed.
What Happens If a Trustee Breaches These Duties
California gives beneficiaries a wide set of tools when a trustee falls short, and courts use them.
Remedies a Beneficiary Can Seek
A beneficiary who believes the trustee has breached, or is about to breach, their duties can ask the court to:
- Compel the trustee to perform their duties.
- Enjoin a threatened breach.
- Order the trustee to pay money to make up for losses caused by the breach.
- Appoint a receiver or temporary trustee to take control of trust property.
- Remove the trustee.
- Reduce or deny the trustee’s compensation.
- Impose a constructive trust or equitable lien on specific property the trustee wrongfully transferred.
- Trace trust property that was improperly disposed of and recover it or its proceeds.
These remedies are not mutually exclusive, and other remedies available under common law or other statutes are preserved.9California Legislative Information. California Code Probate 16420 – Remedies for Breach of Trust
How Damages Are Measured
When a breach causes financial harm, the trustee can be held personally responsible for whichever of these fits the situation: any loss in the trust’s value caused by the breach (plus interest), any profit the trustee personally made from the breach (plus interest), or any profit the trust would have earned but for the breach. Courts have discretion to partially or fully excuse a trustee who acted reasonably and in good faith based on what they knew at the time, but that is a high bar, not a comfortable safety net.10California Legislative Information. California Code Probate 16440 – Measure of Liability for Breach of Trust
Removal of the Trustee
Removal is one of the most powerful remedies and one of the most common. On petition from the settlor, a co-trustee, or a beneficiary, a court can remove a trustee for committing a breach of trust, being insolvent or otherwise unfit, charging excessive compensation, failing or refusing to act, or feuding with a co-trustee in a way that impairs administration. A trustee who is substantially unable to manage finances or resist fraud or undue influence can also be removed. A catch-all for “other good cause” gives the court room to act when misconduct does not fit neatly into a listed category.11California Legislative Information. California Code Probate 15642 – Removal of Trustee
How Long Beneficiaries Have to Sue
Beneficiaries do not have unlimited time to challenge a trustee’s conduct. Under Probate Code section 16460, if a beneficiary receives a written accounting or report that adequately reveals the existence of a breach, the beneficiary has three years from receiving that report to file a claim. If no report was provided, or the report did not adequately disclose the issue, the three-year clock runs from the date the beneficiary discovered, or reasonably should have discovered, the breach. Waiting too long bars the claim no matter how serious the underlying conduct was.
Keeping Records That Will Hold Up
Day to day, meeting these duties means documenting everything. A trustee should keep detailed records of every transaction: purchases, sales, distributions, fees paid, tax filings, and communications with beneficiaries. Good records make the annual accounting possible, and they are the trustee’s defense if a beneficiary later questions a decision. Trustees who rely on memory or informal notes tend to find themselves unable to justify their choices when it matters most.
One warning that sits outside the Probate Code but hits trustees hard: real property in the trust, especially commercial, industrial, or agricultural land, can expose the trustee to environmental cleanup obligations under federal law regardless of who caused the contamination. A trustee inheriting that kind of asset should consider an environmental assessment early, before liabilities surface that could dwarf everything else in the trust.