Key Takeaways

• Self-dealing is when a trustee uses their position for personal benefit — buying trust property, lending trust money to themselves, or favoring their own interests.
• It violates the trustee’s duty of loyalty, the most fundamental fiduciary obligation, and California law treats it strictly.
• A trustee generally cannot transact with the trust for their own account, even at a fair price, absent authorization or consent.
• Self-dealing can lead to setting aside the transaction, surcharge, disgorgement of profits, and removal.
• Conflicts of interest — even short of outright self-dealing — can also breach the duty of loyalty.

The Most Fundamental Duty

Of all the duties a trustee owes, the duty of loyalty is the most basic: the trustee must administer the trust solely in the interest of the beneficiaries. Not partly. Not mostly. Solely. Self-dealing — using the trustee’s control over the trust to benefit themselves — is the clearest violation of that duty, and California law treats it as one of the most serious things a trustee can do.

The reason for the strictness is practical. A trustee sits on both sides of any deal they do with the trust, and no one can fairly negotiate against themselves on the beneficiaries’ behalf. So the law doesn’t just ask whether a self-dealing transaction was “fair” — it generally bars the trustee from being on both sides at all, absent specific authorization or proper consent. Understanding this bright-line approach is key for beneficiaries who suspect a trustee has been helping themselves.

What Counts as Self-Dealing

Self-dealing takes many forms, but they share a common thread: the trustee’s personal interest collides with the beneficiaries’. Common examples:

• Buying trust property for themselves (or selling their own property to the trust), even at what they claim is fair market value.
• Lending trust money to themselves, their business, or family members.
• Borrowing from the trust or using trust assets as collateral for personal purposes.
• Paying themselves excessive fees or compensation beyond what’s reasonable or authorized.
• Hiring their own business (or one they have a stake in) to provide services to the trust on favorable terms.
• Taking trust opportunities for personal gain — diverting an investment or deal that should have benefited the trust.
• Favoring themselves as a beneficiary over other beneficiaries when they wear both hats.

The striking part for many beneficiaries is that a fair price doesn’t necessarily save the transaction. Because the duty of loyalty bars the conflict itself, a trustee who buys trust property for full value can still have engaged in prohibited self-dealing. The transaction can be challenged regardless of whether the trustee “got a good deal” for the trust.

Conflicts of Interest Short of Self-Dealing

Not every loyalty problem is outright self-dealing. A trustee can breach the duty of loyalty through conflicts of interest that fall short of a direct transaction with the trust — for example, administering the trust in a way that benefits a business they own, favoring one set of beneficiaries they’re aligned with, or letting a personal relationship steer their decisions. The duty of loyalty requires the trustee to keep the beneficiaries’ interests paramount and to avoid putting themselves in positions where their judgment is compromised. When a conflict taints the administration, it can be a breach even without a classic self-dealing transaction.

Suspect a trustee has been using the trust to benefit themselves? Self-dealing is among the most serious — and most provable — trustee breaches. Bay Legal handles these cases throughout California. For guidance on your specific situation, call (650) 668-8000 or schedule a consultation at baylegal.com/contact.

When Self-Dealing Might Be Permitted

The bar on self-dealing isn’t absolute — there are situations where a transaction that would otherwise be prohibited is allowed:

• The trust authorizes it. A trust instrument can permit certain transactions or arrangements that would otherwise be self-dealing (for example, where the settlor named a trustee who’s also a beneficiary and contemplated certain dealings).
• Informed beneficiary consent. Beneficiaries who are fully informed can sometimes consent to a transaction.
• Court approval. A trustee can seek the court’s authorization in advance for a transaction, protecting themselves from later challenge.

The lesson for trustees is the safe path: if a transaction even looks like self-dealing, get authorization — from the trust terms, from informed beneficiaries, or from the court — before doing it, not after. The lesson for beneficiaries is that a trustee’s claim of “it was fine” should be tested against whether any of these actually applied.

What Beneficiaries Can Do

When a trustee has engaged in self-dealing, beneficiaries have strong remedies:

• Set aside the transaction — undoing the improper deal and restoring the property to the trust.
• Surcharge — holding the trustee personally liable for any loss.
• Disgorgement — making the trustee give up any profit they made from the self-dealing.
• Removal — self-dealing is a classic ground to remove the trustee.
• Constructive trust or equitable lien — tracing improperly taken property and recovering it.

Self-dealing cases are often among the more provable trust disputes, because the transaction itself — the trustee on both sides of a deal — is frequently documented in the trust’s own records. Compelling a trust accounting typically brings these transactions to light.

Self-dealing transactions often show up in the trust’s own records. Bay Legal can help you uncover them and pursue the remedies. For guidance on your specific situation, call (650) 668-8000 or schedule a consultation at baylegal.com/contact.

A Note for Trustees

If you’re a trustee, the duty of loyalty is where good intentions get people in trouble. A trustee who genuinely believes they paid a fair price for trust property can still face a valid self-dealing claim, because the conflict itself is the problem. The protection is straightforward: avoid transactions between yourself and the trust, and where one is genuinely necessary or beneficial, get it authorized — by the trust terms, informed beneficiary consent, or court approval — in advance and in writing. Transparency and prior authorization are a trustee’s best defense. See our guide on defending a trustee.

How This Fits Together

Self-dealing is a core breach of fiduciary duty that leads to surcharge and removal, and it’s usually exposed through compelling an accounting. Where it involves a vulnerable settlor, it can overlap with financial elder abuse and double damages. 

Frequently Asked Questions

What is trustee self-dealing in California?

It’s when a trustee uses their control over the trust for personal benefit — buying trust property, lending trust money to themselves, overpaying themselves, or hiring their own business. It violates the duty of loyalty and is treated strictly under California law.

Can a trustee buy property from the trust?

Generally not for their own account, even at fair market value, because that’s self-dealing — absent authorization in the trust, informed beneficiary consent, or court approval. The conflict itself is the problem, not just the price.

Is self-dealing okay if the price was fair?

Not necessarily. Because the duty of loyalty bars the conflict, a self-dealing transaction can be challenged even if the trustee paid full value. A fair price doesn’t automatically cure prohibited self-dealing.

What can beneficiaries do about trustee self-dealing?

Seek to set aside the transaction, surcharge the trustee for any loss, force disgorgement of profits, remove the trustee, and trace and recover improperly taken property. Compelling an accounting usually exposes the self-dealing.

When is a trustee allowed to transact with the trust?

When the trust authorizes it, fully informed beneficiaries consent, or the court approves it in advance. A trustee who wants to do such a transaction should get authorization beforehand.