US-CaliforniaWhat duties does a trustee owe to beneficiaries in California?
A trustee in California owes beneficiaries duties of loyalty, prudence, impartiality, accounting, and prudent investment — all codified in the Probate Code and enforced by courts.
What the Law Says
California law imposes strict fiduciary duties on trustees toward beneficiaries, primarily under the Probate Code. These duties are mandatory, non-waivable (except in limited circumstances for professional trustees), and apply to all trust administration.
The duty of loyalty requires a trustee to administer the trust solely in the interest of the beneficiaries — not for personal gain or third-party benefit.
Under the prudent investor rule, trustees must invest and manage trust assets as a prudent investor would, considering the trust’s purposes, terms, distribution requirements, and beneficiaries’ needs.
Trustees must act impartially among beneficiaries — for example, balancing income beneficiaries’ current needs against remainder beneficiaries’ long-term interests.
They must keep clear, accurate records and provide beneficiaries with timely accountings — typically at least annually and upon trust termination or trustee resignation.
Trustees also owe a duty to inform and report material facts affecting beneficiaries’ interests, unless waived in writing by a competent adult beneficiary.
Statutory TextThe trustee has a duty to administer the trust solely in the interest of the beneficiaries.
— Probate Code § 16002 — Duty of loyalty
Statutory TextThe trustee shall invest and manage trust assets as a prudent investor would, considering the purposes, terms, distribution requirements, and other circumstances of the trust.
— Probate Code § 16047 — Prudent investor rule
Statutory TextIf a trust has two or more beneficiaries, the trustee shall act impartially in investing, managing, and distributing the trust property, giving due regard to the beneficiaries’ respective interests.
— Probate Code § 16003 — Duty of impartiality
Statutory TextThe trustee shall keep clear, accurate, and complete records of the administration of the trust.
— Probate Code § 16062 — Recordkeeping duty
Statutory TextThe trustee shall account to the beneficiaries at least annually and upon the termination of the trust or the trustee’s resignation.
— Probate Code § 16060 — Duty to account
What Courts Have Said
California courts consistently enforce these statutory duties and hold trustees to high standards of conduct. Breach of duty may result in surcharge, removal, or personal liability.
Affirmed that a trustee’s self-dealing violates the duty of loyalty even if the transaction appears fair; strict scrutiny applies.
Held that a trustee’s failure to diversify trust investments breached the prudent investor duty under Probate Code § 16047, resulting in liability for losses.
What to Do
Review the trust instrument and confirm your duties under Probate Code §§ 16000–16062.
Avoid any conflict of interest — never commingle trust funds with personal assets or engage in self-dealing.
Maintain detailed, organized records of all transactions, investments, and communications.
Provide formal accountings to beneficiaries at least once per year and upon request (if permitted by trust terms).
Consult a qualified trust attorney before making major decisions — especially regarding investments, distributions, or modifications.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.