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Common Mistakes Trustees Make (and How an Attorney Can Help Avoid Them)

October 14, 2025

Key Takeaways 

  • Trust administration has strict duties and deadlines, and trustees must follow the trust terms and California law to avoid personal liability.
  • Clear records and regular updates to beneficiaries reduce conflict; formal accountings and organized documentation protect the trustee.
  • Assets must be managed prudently, debts and taxes paid first, and distributions made only when the estate is ready.
  • Tax compliance matters, including getting an EIN and filing required returns; missed filings and late reports create penalties and risk.
  • An experienced trust attorney guides each step, interprets unclear terms, stays current on new California laws, and helps the trustee finish the job on time.

Trust administration is a critical responsibility that comes with its own set of challenges and legal complexities. When a grantor passes away, the successor trustee must ensure that the trust is administered according to the decedent's wishes, in compliance with state law, and without causing any disputes or legal liabilities

Despite the good intentions of trustees, many make costly mistakes during this process, which can lead to personal liability, family conflicts, and significant legal and financial consequences. Understanding these common mistakes and how to avoid them is essential for trustees, and seeking legal guidance from an experienced attorney can help ensure smooth administration and protect both the trust and the trustee.

What is Trust Administration?

Trust administration is the legal process of managing and distributing a deceased person's trust assets. When a grantor dies, their living trust becomes irrevocable, and the successor trustee must execute the trust terms according to state law.

Key Responsibilities of a Trustee

Trustees must handle specific legal and administrative duties immediately after the grantor's death. First, obtain 8-12 certified copies of the death certificate and lodge the will with the court within 30 days. In California, notify all beneficiaries within 60 days per Probate Code Section 16061.7.

Financial obligations include obtaining an EIN for tax purposes and filing Form 1041 if the trust generates over $600 in income. Trustees must also provide a detailed accounting of all transactions to beneficiaries and ensure proper documentation throughout the process.

Why Trust Administration is Crucial

Trust administration protects the decedent's legacy and ensures their wishes are honored. The process takes anywhere from a few months to over a year, depending on estate complexity. Unlike probate, trust administration remains private without court oversight.

Proper administration prevents legal disputes, protects beneficiaries' interests, and fulfills fiduciary obligations. Without careful execution, trustees face personal liability, and beneficiaries may challenge distributions or trustee actions.

What Are the Common Mistakes Trustees Make During Trust Administration?

Even well-intentioned trustees make costly errors during trust administration. These mistakes expose trustees to personal liability and create disputes among beneficiaries. Understanding common pitfalls helps trustees protect themselves and honor the grantor's wishes.

Failing to Follow the Terms of the Trust

Trustees frequently misunderstand their legal obligations and the trust document's specific provisions. Many fail to grasp the settlor's true intent, leading to improper administration. Trustees should carefully examine trust documents for unclear or ambiguous language that may require court interpretation before taking action.

Not Keeping Accurate Records

Record-keeping requirements vary by trust complexity. Simple trusts lasting 3-6 months need only basic chronological bank statements with notes. Complex trusts exceeding 6 months require accounting software like Quicken for proper documentation.

Poor record-keeping creates confusion, legal complications, and beneficiary disputes. Most misunderstandings stem from inadequate communication and incomplete financial documentation.

Mismanaging Trust Assets

Trustees must manage investments as reasonably prudent investors would. Common errors include making unwise investment choices, neglecting diversification, and ignoring market shifts. These mistakes result in financial losses and potential trustee liability.

Distributing assets before settling debts, taxes, and obligations is another critical error. Premature distribution can render the trust insolvent and make trustees personally liable for unpaid claims.

Ignoring Tax and Reporting Obligations

All post-death financial activities must be reported under the trust's EIN. Trustees face liability for failing to recognize tax responsibilities, including estate taxes, capital gains taxes, property taxes, generation-skipping transfer taxes, and income taxes.

Delays exceeding one year without proper disclosure signal serious problems. Missing tax deadlines or filing requirements creates financial penalties and legal exposure for trustees.

How Can an Attorney Help Avoid These Mistakes?

Trust administration attorneys provide essential guidance that prevents costly errors and personal liability. Professional legal support ensures compliance with complex laws while protecting trustees from common pitfalls. Attorneys handle technical requirements, allowing trustees to focus on honoring the grantor's wishes.

Legal Guidance on Trust Terms

Attorneys break down complicated legal documents into understandable terms for trustees. They clarify the grantor's intent and ensure proper interpretation of trust provisions. Trust administration involves 8 steps following California Probate law and other applicable mandates—attorneys guide trustees through each requirement.

Assistance with Record-Keeping

Attorneys maintain detailed records throughout the administration process, documenting every transaction and decision. They prepare court-formatted accounting statements if beneficiaries demand formal documentation, ensuring compliance with legal standards and protecting trustees from liability claims.

Expert Asset Management Advice

Professional guidance helps trustees fulfill fiduciary responsibilities and make prudent investment decisions. Seeking legal advice can absolve trustees of personal liability for financial losses when following attorney recommendations.

Attorneys also manage creditor claims, properly identifying and paying legitimate debts. This prevents trustees from facing personal liability for unpaid obligations or improper distributions.

Support with Tax Filings and Reporting

Attorneys handle complex tax situations involving business ownership, out-of-state property, or high-net-worth estates. They obtain the trust's Tax ID (EIN) and ensure proper setup for all reporting requirements.

Legal counsel files final income taxes and navigates multiple tax obligations, including estate, capital gains, and generation-skipping transfer taxes. This expertise prevents costly penalties and compliance failures.

Why Should Trustees Hire an Attorney?

Trust administration involves complex legal requirements that change frequently. Trustees who attempt DIY administration risk personal liability and costly mistakes. Professional legal counsel protects trustees while ensuring compliance with evolving California laws.

Legal Complexity and Compliance

Even fully funded living trusts require formal administration with proper legal and accounting procedures. Recent California law changes significantly impact trust administration: the Uniform Directed Trust Act (UDTA) and Uniform Fiduciary Income and Principal Act (UFIPA), effective January 2024, provide new flexibility in managing trusts.

The California Supreme Court's Haggerty v. Thornton decision (February 2024) clarified trust modification rules. Assembly Bill 2016, effective January 2025, raises the primary residence transfer threshold from $184,500 to $750,000. Trustees need legal guidance to navigate these changes and ensure compliance.

Protection from Personal Liability

Debt mismanagement can devastate a trustee's personal finances. Trustees become personally liable for trust obligations when they make distribution errors or miss payment deadlines. These mistakes damage family relationships and generate unexpected costs.

Trust attorneys manage critical deadlines that grieving trustees often overlook. Missing notification periods, tax filings, or creditor claim deadlines expose trustees to lawsuits and financial liability. Legal counsel shields trustees from these risks while allowing families time to grieve.

What Are the Consequences of Mistakes in Trust Administration?

Trust administration errors carry serious legal and financial penalties. Trustees face personal liability for mismanagement, while beneficiaries may lose inheritance value. Understanding these consequences emphasizes why proper administration and legal guidance are essential.

Legal and Financial Consequences

Self-dealing transactions—where trustees personally benefit from trust assets—constitute severe breaches of fiduciary duty. These actions trigger personal liability and potential removal from the trustee role. Financial losses from poor decisions also expose trustees to liability claims.

Trust disputes frequently arise from distrust, greed, and family conflicts over inheritance. Beneficiaries can sue trustees for mismanagement or improper asset distribution. Litigation damages family relationships, depletes trust assets through legal fees, and extends administration for years.

How to Rectify Mistakes

Trustees can seek court approval for questionable actions to protect themselves from future liability claims. Legal petitions provide judicial validation for complex decisions or unclear trust provisions.

Courts also address damages to trust property caused by third parties. Trustees may need legal action to recover property that rightfully belongs to the trust, whether through fraud, theft, or improper transfers. Prompt legal intervention minimizes losses and restores trust assets.

How to Choose the Right Attorney for Trust Administration?

Selecting qualified legal counsel directly impacts trust administration success. The right trust attorney possesses current legal knowledge, specialized experience, and clear communication skills. Most successor trustees need professional help to fulfill fiduciary duties properly.

What to Look for in an Attorney

Choose an estate planning attorney who stays current with California trust and probate law changes. Recent legislation, like Assembly Bill 2148, requires professional fiduciaries to register with the Professional Fiduciaries Bureau—your attorney should understand these compliance requirements.

Look for attorneys who provide ongoing education about estate planning laws and trust administration practices. Ask about their experience with cases similar to yours, including estate complexity and potential family dynamics. Verify their bar standing and check for any disciplinary actions.

Cost Considerations

DIY trust administration is legally possible but risky. The complexity of trust law and potential for costly mistakes make professional guidance highly advisable. One missed deadline or improper distribution can cost far more than attorney fees.

Trust assets typically cover legal fees, not the trustee's personal funds. This investment protects the estate and the trustee from liability. Professional guidance also allows grieving families to focus on emotional healing rather than navigating complex legal processes during a difficult time.

Safeguard Your Role as a Trustee with Legal Expertise

The process of trust administration can be overwhelming, but you don’t have to navigate it alone. At McKenzie Legal and Financial, we specialize in providing clear, reliable legal guidance for trustees, helping you avoid costly mistakes and ensuring that the decedent's wishes are honored. We understand the complexities of trust law and are here to guide you through every step of the process—protecting both your interests and those of the beneficiaries.

Don’t take risks with your fiduciary duties. Contact us today at (562) 526-6941 to schedule a consultation, and let us help you manage trust administration with confidence and peace of mind. Reach out now to secure the professional support you need.

Thomas McKenzie Law
Estate Planning Attorney in California. Full-service law firm specializing in estate plans, wills and trusts, long-term care, and financial consulting. Thomas L. McKenzie received his Juris Doctor degree from Western State University College of Law, in Fullerton, California. While working full-time at night and attending full-time daily classes, Tom graduated law school with honors in 1993.

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