What Happens When a Trustee Signs a Contract for the Trust?
A trustee running a trust has to sign leases, hire contractors, retain accountants, and buy and sell property. Every one of those contracts raises the same question: if something goes wrong, who pays — the trustee personally, or the trust estate? California has a statutory answer, and it is different from the old common-law default that many bar exam outlines still teach first.
Trustee contract liability under California law is governed by Probate Code § 18000: a trustee is not personally liable on a contract properly entered into in a fiduciary capacity if the trustee discloses the fiduciary relationship and identifies the trust in the contract. Fail to disclose, and the trustee can end up personally on the hook.
The Traditional Common-Law Rule
Under the old common-law approach — still tested as a baseline on the Multistate Bar Exam — the trustee is personally liable on every contract made on the trust’s behalf, full stop, unless the contract expressly exempts the trustee from personal liability. The third party can sue the trustee individually and reach the trustee’s own bank account, house, and car.
The trustee is not left with nothing, though. If the trustee acted within the scope of trustee powers and was not personally at fault, the trust must indemnify the trustee — reimburse whatever the trustee had to pay. But indemnification is a reimbursement right against the trust, not a shield against the third party’s initial lawsuit. The third party still gets to choose the trustee as a defendant.
California’s Modern, Notice-Based Rule
California abandoned the harsh common-law default years ago. Under Probate Code § 18000, a trustee who properly discloses (a) that she is acting as trustee and (b) which trust she represents is not personally liable on the contract at all. The third party’s remedy runs against the trust, not the trustee’s personal assets.
This tracks the modern rule followed in most jurisdictions and the Uniform Trust Code: if the third party had notice, at the time of contracting, that the trustee was acting in a representative capacity, liability is representative-capacity-only. If the trustee did not disclose that capacity, the trustee remains personally exposed.
Related: Probate Code § 18004 lets a third party sue the trustee in a representative capacity on any claim arising from a contract, whether or not the trustee is also personally liable. That statute is what lets the third party reach trust assets directly, without first having to prove the trustee was personally at fault.
| Traditional (common-law) rule | California rule (Prob. Code § 18000) | |
|---|---|---|
| Default | Trustee personally liable unless contract disclaims it | Trustee NOT personally liable if capacity and trust are disclosed |
| Protection | Must negotiate an express exemption clause | Automatic once disclosure appears in the contract |
| Recovery source | Trustee’s personal assets (absent exemption) | Trust assets, via a representative-capacity suit under § 18004 |
Why the Signature Line Matters So Much
The single fact that flips outcomes on a bar exam essay is how the trustee signed. Compare:
- “Jane Doe” — no trustee designation anywhere in the contract. The counterparty has no notice of the trust. Jane is personally liable, full stop, regardless of which rule applies.
- “Jane Doe, as Trustee of the Smith Family Trust” — capacity and trust are both disclosed. Under § 18000, Jane is not personally liable; the counterparty’s remedy is against trust property via § 18004.
Worked Example
Marcus is trustee of the Alvarez Family Trust, a California trust that owns a small apartment building. Marcus hires a roofing contractor and signs the contract “Marcus Alvarez, Trustee of the Alvarez Family Trust.” The roof job goes over budget, and the contractor sues for the balance owed.
Because Marcus disclosed both his fiduciary capacity and the identity of the trust, § 18000 protects him from personal liability. The contractor’s proper remedy is to sue Marcus in his representative capacity under § 18004 and recover from trust assets — the apartment building’s rental income or trust bank accounts, not Marcus’s personal savings.
Now change one fact: Marcus signs simply “Marcus Alvarez,” with no mention of the trust. The roofer had no way to know a trust was involved. Marcus is personally liable for the contract debt. He may still seek indemnification from the trust afterward, but only if he acted within his powers and was not personally at fault — and he still has to pay the roofer out of pocket first if the trust cannot or will not reimburse him promptly.
Common Mistakes to Avoid
- Assuming personal liability is automatic. Under California’s modern rule, disclosure defeats personal liability. Do not default to the harsher common-law rule on a California-specific fact pattern.
- Confusing representative-capacity liability with no liability. The trust is still liable; only the trustee’s personal exposure disappears.
- Ignoring indemnification limits. A trustee who breached fiduciary duty or exceeded trustee powers cannot claim indemnification, even if personally sued.
- Overlooking the contract’s actual language. Grade the exact words of the signature block and any recitals — that is where the disclosure lives.
Frequently Asked Questions
Does a California trustee need a lawyer to draft an exemption clause to avoid personal liability?
No. Under Probate Code § 18000, simple disclosure of the trustee’s capacity and the trust’s identity in the contract is enough; no special exemption language is required, though careful drafting still helps avoid disputes.
Can a trustee ever be personally liable even after disclosing the trust?
Yes, if the trustee personally guarantees the obligation, commits fraud, or otherwise agrees to be bound individually despite the disclosure.
Is the California rule the same as the Uniform Trust Code rule tested on the MBE?
They are aligned in substance — both are notice/disclosure-based — but always cite Probate Code § 18000 specifically on a California-focused essay rather than the Restatement or UTC provisions.
Key Takeaways
- California trustees avoid personal contract liability under Prob. Code § 18000 by disclosing their fiduciary capacity and the trust’s identity.
- The common-law default (personal liability unless expressly exempted) still matters as the baseline the modern rule departs from.
- Prob. Code § 18004 lets third parties sue trustees in a representative capacity to reach trust assets directly.
- Indemnification protects a properly-acting trustee who is nonetheless sued personally, but it is not available for breaches of duty.
- How the trustee signs the contract is often the single decisive fact on a bar exam essay.
This article is educational and is not legal advice. Consult a licensed California attorney about your situation.
Related guides
- trustee duties
- rule against perpetuities
- trustee tort liability to third parties
- self-settled asset protection trust