What is Trust Litigation?

Last updated: October 2026

Trust litigation in California is a court process for resolving disputes over a trust, such as what its terms mean, whether it is valid, who owns trust property, or whether a trustee acted properly. Strict deadlines can apply, and some start when a trustee sends you a written notice. Acting early protects your options.

Trust disputes often arise within families or between beneficiaries after a loved one passes away. The goal of trust litigation is to make sure the trust is administered the way its creator intended.

This guide covers the main types of trust disputes in California, the deadlines that can limit your claim, and how these cases are usually resolved.

What Is Trust Litigation in California?

Trust litigation is a legal proceeding, usually filed in the probate court, to resolve a conflict over a trust’s terms, validity, assets, or administration. Interested parties can petition the court under Probate Code § 17200 to settle these questions.

Cases can involve beneficiaries, heirs, and trustees. They can be filed after a settlor dies or, in some situations, while the settlor is still living.

What Are the Main Types of Trust Litigation?

California trust disputes generally fall into four categories: disagreements over trust terms, challenges to the trust’s validity, disputes over trust property, and claims against a trustee.

• Disputes over trust terms: Beneficiaries disagree about what a provision means. The cause may be an error, unclear drafting, or an honest mistake in the wording.
• Contests of trust validity: Someone challenges the trust itself, often claiming undue influence, fraud, or that the settlor lacked mental capacity when signing.
• Property disputes: Family members or beneficiaries disagree over real estate, financial accounts, personal belongings, or other assets and whether they belong in the trust.
• Fiduciary disputes: A beneficiary claims the trustee mismanaged assets, failed to account, or acted improperly toward beneficiaries.

What Is a No-Contest Clause, and Can It Cost You Your Inheritance?

A no-contest clause can remove a beneficiary’s gift if they challenge the trust, but California limits when it can be enforced. Under Probate Code § 21311, it applies only to a direct contest brought without probable cause, and to two other situations if the clause expressly covers them.

Those two situations are a challenge claiming that property did not belong to the person who transferred it, and a creditor’s claim. Probable cause exists when the facts known at filing would lead a reasonable person to believe the requested relief is reasonably likely to be granted after further investigation or discovery.

How Long Do You Have to Contest a Trust in California?

When a revocable trust becomes irrevocable because the settlor died, you generally have 120 days from the date the trustee serves a notification to file a trust contest. If the trustee delivers a copy of the trust within that window, the deadline is 60 days from delivery, whichever is later.

The trustee must send this notice under Probate Code § 16061.7, and the deadline itself comes from § 16061.8. A 2022 amendment (AB 1745) clarified that the 120-day period applies only when a revocable trust becomes irrevocable on a settlor’s death.

Because these deadlines can be short, the date on any trustee notice you receive should be checked right away.

How Long Do You Have to Sue a Trustee for Breach of Trust?

Under Probate Code § 16460, a claim against a trustee is generally barred unless it is filed within three years. The clock starts when you receive a written account that adequately discloses the claim, or when you discovered or reasonably should have discovered the problem.

If you never received a written account, the three-year period runs from when you discovered, or should have discovered, the subject of the claim. Deadlines can vary with the facts, so timing should be reviewed early in any case.

What Happens if You Never Received a Trustee Notice?

If a trustee never served the required notice, the short contest deadline may not have started running. Trust matters can sometimes still be raised after substantial time has passed, but waiting carries risk.

Other limits, such as the three-year period for breach-of-trust claims, can still apply. Evidence also becomes harder to gather as time passes.

What Remedies Can a Court Order in a Trust Dispute?

Depending on the claim, a California probate court can interpret trust terms, invalidate all or part of a trust, order a trustee to account, and surcharge or remove a trustee.

• Interpretation: The court decides what an unclear provision means and how assets should be distributed.
• Invalidation: The court can set aside a trust or amendment procured by undue influence, fraud, or incapacity.
• Accounting: A trustee can be ordered to show how trust assets were handled.
• Surcharge and removal: A trustee who breached fiduciary duties can be required to repay losses or be removed under Probate Code § 15642.

How Are Trust Disputes Resolved, and What Does It Cost?

Many trust disputes settle through negotiation or mediation, which usually costs less and moves faster than a trial. An experienced trust and probate litigation attorney can evaluate your options and pursue whichever path fits your goals.

Settlement can also help preserve family relationships. In appropriate cases, some attorneys handle trust litigation on a contingency fee basis, so fee arrangements are worth asking about.

It may never be too late to seek amicable solutions that preserve family relationships. If you want to prevent conflict before it starts, read our guide on how to avoid a trust dispute.

Facing a Trust Dispute in California?

If you are involved in a trust conflict, The Kiken Group, APC can review your situation and explain your options. Contact us at 657-286-4782 or visit our office at 38 Corporate Park, Irvine, CA 92606.

This article is general information, not legal advice. For advice about a specific trust, consult a licensed attorney.