Probate Code Section 17200: The Petition That Starts Most Trust Disputes
Probate Code section 17200 lets a trustee or a beneficiary petition the probate court about the internal affairs of a trust. It is the single door most California trust disputes go through, and the relief you ask for inside it — an accounting, instructions, removal, or redress for a breach — shapes everything that follows.
Almost every California trust dispute that reaches a courtroom arrives as a petition under section 17200. People usually meet the number before they understand it — in a letter from a lawyer, or in a filing served on them — and the number tells them almost nothing about what is actually being asked for. That is the useful part to understand.
What the section actually does
Probate Code section 17200 allows a trustee or a beneficiary of a trust to petition the probate court concerning the internal affairs of the trust, or to determine the existence of the trust. “Internal affairs” is broad by design: the statute goes on to list purposes that range from settling a trustee’s accounts and instructing a trustee, to determining who the beneficiaries are and whether a particular provision is valid, to fixing trustee compensation, appointing or removing a trustee, and compelling redress of a breach of trust. One petition may carry several of these at once, and often does — a petition to compel an accounting and remove a trustee is a single filing, not two. The section is therefore less a cause of action than a doorway, and what matters is which relief a petitioner walks through it to ask for.
Sources: Probate Code s.17200 - Petitions concerning internal affairs of trust · Verified 2026-08-03.
The relief a 17200 petition usually asks for
Each of these is a different case with different evidence, a different likely outcome and a different cost. The page linked beside each one covers it properly.
| What you are asking for | When it is the right ask | Covered on |
|---|---|---|
| Compel an accounting | The trustee has not accounted, or the account you received does not add up | Trust accounting |
| Compel a distribution | The trust directs a distribution and the trustee will not make it | Trustee refuses to distribute |
| Remove or replace the trustee | Breach, hostility, unfitness, or a failure to act that is holding the trust up | Trustee removal |
| Redress a breach of trust | The trust lost value, or the trustee gained, because of what the trustee did | Trustee surcharge |
| Fix or reduce trustee compensation | The trustee is paying themselves an amount the work does not support | Trustee compensation |
| Instruct the trustee | The terms are genuinely unclear and the trustee needs cover to act | Living trust disputes |
| Resolve a deadlock between co-trustees | Two trustees who must act together will not | Co-trustee disputes |
What section 17200 is not
It is not how you challenge the trust itself. A petition that says this amendment was signed under undue influence or the settlor lacked capacity is a trust contest, and it runs on a much shorter clock — one that usually starts when the trustee serves thesection 16061.7 notification. Confusing the two is expensive in a specific way: the enforcement petition is still available months later, and the contest may not be.
If a notification has already arrived, the trust contest deadline calculator will tell you which clock you are on before anything is filed.
Where this sits in the wider process
A 17200 petition is the opening move, not the whole case. What follows it — the response, discovery, mediation, and occasionally trial — is set out in how a trust dispute actually runs. Most resolve well before a judge decides anything, and the relief asked for in the original petition tends to define the shape of the settlement.
Official text: Probate Code section 17200 at leginfo.legislature.ca.gov. Related sections are indexed on the Probate Code index.
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A contingency fee means the attorney is paid from what is recovered rather than by the hour, so a beneficiary who cannot fund litigation out of pocket can still bring a claim. California regulates these agreements closely. Under Business and Professions Code section 6147, the agreement must be in writing and the attorney must give the client a duplicate copy, signed by both, when the contract is made. It must state the agreed contingency rate; how disbursements and costs incurred in prosecuting or settling the claim will affect that fee; and to what extent the client could be required to pay for related matters. Unless the matter falls under section 6146, the agreement must also state that the fee is not set by law and is negotiable. These are not formalities: failure to comply with any provision of section 6147 makes the agreement voidable at the client’s option, leaving the attorney entitled only to a reasonable fee.
Sources: Business and Professions Code s.6147 - Contingency fee contracts · Verified 2026-08-03.
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We Answer 24/7 — Call Anytime · (415) 275-1492The Probate Code sections behind this page
Each section links to its official text at the California Legislature’s own site. The full index of sections covers the rest of the Code.
- Probate Code section 17200
- Petitions concerning internal affairs of trust. Read section 17200