The Presumption of Undue Influence Under Probate Code § 21380

The Presumption of Undue Influence Under Probate Code § 21380

Under California Probate Code § 21380, if the person who benefited from a trust change was the drafting attorney, a caregiver, or certain other fiduciaries, the law presumes the transfer was the product of fraud or undue influence, and it’s on them to prove otherwise. Most of the time, a person challenging a trust has to prove undue influence happened. Section 21380 flips that burden for a specific, high-risk category of transfers.

Who triggers the presumption

Section 21380 applies to a “donative transfer” to any of the following people, unless an exception applies.

The person who drafted the instrument

If the attorney or non-attorney drafter of the trust or amendment named themselves, or a close relative or business associate, as a beneficiary, the presumption applies automatically. There is no need to show anything else happened. The drafting relationship alone triggers it.

A care custodian of a dependent adult

This is one of the most heavily litigated categories. A “care custodian” includes a broad range of people who provide health or social services to a dependent adult, including in-home caregivers, and it applies to a transfer made while the caregiver was providing services, or within 90 days before or after. Families frequently discover this category applies only after a caregiver who was paid to help with meals and medication turns out to be a named beneficiary in a late-life trust amendment.

A fiduciary who transcribed the instrument, or caused it to be transcribed

Someone acting as a fiduciary (an agent under a power of attorney, a conservator, or a trustee) who arranges for the document to be prepared falls within the statute. This closes an obvious workaround: even if that person didn’t literally draft the language, arranging for someone else to do it while holding a fiduciary role is enough.

A care custodian’s family member, employer, or associated business

The statute reaches beyond the individual caregiver to people connected to them, to prevent someone from routing a transfer through a relative to avoid the presumption. A caregiver’s spouse or the home care agency that employs them can fall within this reach just as easily as the caregiver themselves.

Why the law targets these relationships specifically

Each category shares a common thread: a relationship of dependency combined with practical access to the document itself. A caregiver spends hours a day with an isolated, often physically or cognitively declining elder. A drafting attorney controls the actual language of the trust. Both hold enormous, largely unsupervised influence over a vulnerable person’s final wishes. The legislature decided that when someone in this position ends up as a beneficiary, the law should ask hard questions before honoring the transfer, rather than trusting that everything was above board.

What the presumption actually does

Once § 21380 applies, the transfer is presumed to be the product of fraud or undue influence, and it’s presumed invalid unless the beneficiary proves, by clear and convincing evidence, that the transfer was not the product of fraud or undue influence. Clear and convincing evidence is a meaningfully higher bar than the preponderance standard that applies in most civil disputes, which makes this presumption genuinely powerful for a contestant. The contestant doesn’t need to build a case from nothing. The law hands them the presumption and puts the work on the other side.

How the presumption gets rebutted

The statute isn’t absolute. A beneficiary can defeat the presumption a few ways.

Certificate of independent review

Under Probate Code § 21384, if an independent attorney, someone with no relationship to the beneficiary, reviewed the transfer with the transferor outside the presence of the beneficiary, counseled them about the nature and consequences of the transfer, and signed a certificate confirming the transfer was not the product of fraud or undue influence, the presumption doesn’t apply. This is a real procedural safeguard, and its absence in a given case is itself telling.

Family exception

Probate Code § 21382 exempts transfers to certain relatives of the transferor (a spouse, or someone related by blood or marriage within a specified degree) even if they otherwise fit a covered category, on the theory that family members are less likely to be strangers exploiting a relationship of trust.

Small estate exception

There’s also a threshold exception for smaller transfers, though it’s narrow and shouldn’t be assumed to apply without checking the current statutory amount.

Why this statute matters strategically

If your case involves a caregiver, a drafting attorney, or a fiduciary who ended up as a trust beneficiary, § 21380 can be the fastest, strongest path to a challenge, because it removes your burden to prove influence from scratch and instead forces the beneficiary to justify the transfer under a demanding evidentiary standard. This often changes the entire negotiating posture of a case. A beneficiary who was confident about defending a straightforward undue influence claim can look very different once they realize they’re the one who has to prove a negative under a clear and convincing standard.

This presumption frequently overlaps with a broader undue influence claim and, where money was taken outside the trust document itself, a financial elder abuse claim. If the caregiver or fiduciary in question is currently serving as trustee, trustee removal may also be on the table.

The honest caveat

Section 21380 is powerful, but it only applies if your facts actually fit one of its categories. A friend who wasn’t paid to provide care, a distant relative who helped occasionally, or someone who simply had a close personal relationship with the transferor generally doesn’t trigger it, even if the situation still smells like undue influence in the ordinary sense. In those cases you’re back to proving influence the traditional way. Figuring out which situation you’re in, and whether an exception like the certificate of independent review might already defeat the presumption, takes an actual review of the facts and the documents, not a guess based on how things feel.

Talk to a real California estate attorney

If a caregiver, drafting attorney, or fiduciary in your family’s situation ended up as an unexpected trust beneficiary, you don’t have to figure out on your own whether the presumption applies. I’ll look at the relationship, the timing, and the documents, and tell you quickly what § 21380 means for your case.

Talk to Eric Ridley is a free 60-minute consultation by phone or Zoom, anywhere in California. Or call (805) 244-5291. You’ll leave knowing where you stand, whether or not you hire me.

Related reading: Gifts to caregivers and Probate Code § 21380 · What counts as undue influence under Probate Code § 86 · Financial elder abuse and trust contests · Signs a trust was changed under duress

Frequently asked questions

What is the presumption of undue influence under Probate Code section 21380?

Probate Code section 21380 presumes that a donative transfer in a trust or will is the product of fraud or undue influence when it benefits certain people, including the person who drafted the document, a care custodian of a dependent adult, or a fiduciary who arranged for the document to be prepared. Once it applies, the burden shifts to the beneficiary to prove otherwise.

Who counts as a care custodian under California’s undue influence presumption?

A care custodian includes a broad range of people who provide health or social services to a dependent adult, including in-home caregivers. The presumption applies to a transfer made while the caregiver was providing services, or within 90 days before or after, and it also extends to the caregiver’s family members, employer, or associated business.

How does a beneficiary overcome the presumption under section 21380?

A beneficiary must prove by clear and convincing evidence that the transfer was not the product of fraud or undue influence. The strongest defense is a certificate of independent review under Probate Code section 21384, where an unrelated attorney counseled the transferor outside the beneficiary’s presence and certified the transfer was not the product of fraud or undue influence.

Does the presumption of undue influence apply to gifts to family members?

Usually not. Probate Code section 21382 exempts transfers to certain relatives of the transferor, such as a spouse or someone related by blood or marriage within a specified degree, even if they otherwise fit a covered category like care custodian. The presumption is aimed at people outside the family who gain unexpected influence.

How is clear and convincing evidence different from the usual burden of proof?

Clear and convincing evidence is a meaningfully higher bar than the preponderance of the evidence standard used in most civil disputes. Under section 21380, once the presumption applies, the beneficiary carries that higher burden, which makes the presumption genuinely powerful for someone contesting the transfer.

This is general information about California law, not legal advice for your situation.