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CaliforniaTrustee Misconduct

Trustee Conflict of Interest Under California Law

Last updated October 9, 2026

The problem

Under Probate Code sections 16002 and 16004, a California trustee must act solely for beneficiaries. What counts as self-dealing and what a court may order.

Remedies that may apply

Related disputes

Frequently asked questions

Is a trustee always a fiduciary?

Yes. Under California law, a trustee is a fiduciary, meaning a person who must act for someone else's benefit rather than their own. Probate Code section 16002 requires the trustee to administer the trust solely in the interest of the beneficiaries. That duty applies whether the trustee is a family member, a professional or a corporate trustee.

What is deemed a conflict of interest for a trustee?

A conflict exists when the trustee has a personal stake that competes with the duty to run the trust solely for the beneficiaries. Probate Code section 16004(a) bars a trustee from using trust property for their own profit or taking part in a transaction in which they have an interest adverse to the beneficiary. Selling trust property to themselves, borrowing trust funds, and hiring their own company with trust money are common examples.

What are a trustee's fiduciary duties under California law?

The principal duties discussed here are the duty of loyalty (section 16002), the duty not to self-deal or hold an adverse interest (section 16004), the duty to keep beneficiaries reasonably informed (section 16060), the duty to report requested information (section 16061), and the duty to account to certain beneficiaries (section 16062). The Probate Code imposes other duties as well; this is not a complete list.

Can a trustee who is also a beneficiary have a conflict of interest?

Yes, the dual role creates a structural conflict. The trustee-beneficiary must still administer the trust for all beneficiaries, and section 16004(a) applies to them fully. Holding both roles is not itself a breach; whether a breach occurred depends on what the trustee actually did.

What can a beneficiary do if a trustee has a conflict of interest?

A beneficiary may petition the court under Probate Code section 17200. If a breach of trust has occurred or is threatened, section 16420(a) allows proceedings to compel performance, stop a breach, compel redress, remove the trustee, reduce compensation and more. None of these remedies is automatic; each depends on the facts and the court's findings.

Can a trust beneficiary be sued by the trustee?

A trustee can go to court too. Probate Code section 17200(a) allows a trustee, as well as a beneficiary, to petition the court concerning the internal affairs of the trust. That question sits at the edge of this page, which focuses on conflicts on the trustee's side.

How long does a beneficiary have to bring a breach of trust claim in California?

Under Probate Code section 16460(a), the period is three years after the beneficiary receives an account or written report that adequately discloses the claim. If no account or report adequately discloses it, or none is received, the period is three years after the beneficiary discovered or reasonably should have discovered the subject of the claim.

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

Sources & authorities

  1. 01California Probate Code section 16002 — California Legislative Information
  2. 02California Probate Code section 16004 — California Legislative Information
  3. 03California Probate Code section 16005 — California Legislative Information
  4. 04California Probate Code section 16060 — California Legislative Information
  5. 05California Probate Code section 16061 — California Legislative Information
  6. 06California Probate Code section 16062 — California Legislative Information
  7. 07California Probate Code section 16064 — California Legislative Information
  8. 08California Probate Code section 16420 — California Legislative Information
  9. 09California Probate Code section 16440 — California Legislative Information
  10. 10California Probate Code section 16460 — California Legislative Information
  11. 11California Probate Code section 15642 — California Legislative Information
  12. 12California Probate Code section 17200 — California Legislative Information
  13. 13California Probate Code section 859 — California Legislative Information
  14. 14Judicial Branch of California — California Courts