Trustee Liability in California: When Mistakes Can Lead to Personal Risk

Jennifer Shelton • April 1, 2026

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Understanding Trustee Liability Under California Law

Serving as a trustee is a serious legal responsibility. When someone creates a living trust, they rely on the trustee to manage and distribute assets exactly as directed. However, mistakes or neglect can expose trustees to personal financial liability.

If you’re managing a trust, it’s important to understand the limits of your authority — and how to avoid errors that could cost you. At Jennifer Shelton, A Professional Law Corporation, we guide trustees throughout California through every stage of the process to help them fulfill their duties with confidence and care.

When Trustees Can Be Held Personally Liable

Under California Probate Code, trustees have what’s known as a fiduciary duty — the highest standard of legal responsibility. If a trustee violates that duty, even unintentionally, they can be held personally responsible for financial losses to the trust or its beneficiaries.

Common causes of trustee liability in California include:

  • Mishandling trust funds: Using trust assets for personal expenses, or failing to keep funds in a separate trust account.
  • Poor communication: Not informing beneficiaries about important actions or withholding required accountings.
  • Improper investments: Making risky or speculative investments that violate the “prudent investor” rule.
  • Failure to follow the trust terms: Ignoring clear distribution instructions or misinterpreting provisions.
  • Delays in administration: Letting months pass without progress can lead to beneficiary disputes or court intervention.
  • Tax filing errors: Missing deadlines or failing to file returns properly can result in penalties charged to the trustee personally.

Even well-meaning trustees can make costly mistakes if they act without professional guidance — especially when managing complex estates, real property, or multiple beneficiaries.

Real-World Examples of Trustee Mistakes

Consider these common situations:

  • A trustee sells a home below market value to a family member, thinking it honors the trust maker’s wishes. Beneficiaries later sue for the loss in value.
  • A trustee deposits trust funds into their personal account for convenience, blurring records. The court rules that commingling violated fiduciary duty.
  • A trustee fails to inform a beneficiary about key actions, leading to claims of concealment and a formal court accounting.

Each of these examples could lead to personal financial consequences for the trustee.

How to Minimize Your Risk as Trustee

  1. Keep clear records — Document every transaction, communication, and decision.
  2. Maintain separate accounts — Never mix personal and trust funds.
  3. Seek legal and tax guidance — California’s trust laws are complex; consulting an attorney can prevent inadvertent violations.
  4. Communicate proactively — Regular updates to beneficiaries help maintain transparency and trust.
  5. Follow the trust document carefully — If unclear, ask before acting. Misinterpretation is a major source of disputes.

Working with an experienced trust administration attorney ensures you understand your obligations and protect yourself from potential claims.

When to Seek Legal Help

If you’ve recently become a trustee, don’t wait until an issue arises. A short consultation can help you understand your duties, avoid personal exposure, and keep the process running smoothly.

At Jennifer Shelton, A Professional Law Corporation, we assist trustees across Siskiyou County, Del Norte County, and throughout California in performing their roles confidently and correctly.

Protect Yourself as a Trustee

Trustees are expected to act with care, loyalty, and transparency. A single oversight can have serious consequences — but you don’t have to handle it alone.

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