A Certification of Trust in California is a short, notarized document that proves a trust exists and shows a trustee has authority to act, without disclosing who inherits what. It is governed by California Probate Code Section 18100.5, and trustees use it whenever a bank, title company, or brokerage needs confirmation of their powers before opening an account, closing a sale, or transferring assets held in the trust’s name.
The certification does two jobs at the same time. It gives a third party the facts needed to complete a transaction, and it keeps the trust’s dispositive provisions, the clauses that spell out distributions and bequests, out of the hands of anyone who has no business reading them.
What the Certification Must Contain
Section 18100.5 lists eight categories of information the document may include, and in practice institutions expect to see all of them:
- The name of the trust and the date the original trust instrument was signed.
- The names of the settlor or settlors and the names of all currently acting trustees.
- A description of the trustee’s relevant powers, or a broader statement that the trustee holds all powers necessary for the transaction.
- Whether the trust is revocable or irrevocable, and the name of anyone who holds the power to revoke it.
- If more than one trustee serves, whether all of them or fewer than all must sign to exercise the trustee’s powers.
- The trust’s taxpayer identification number, whether that is a Social Security number or an employer identification number.
- The manner in which title to trust assets should be taken.
- A legal description of any real property the trust holds.
Beyond those eight items, the certification must state that the trust has not been revoked, modified, or amended in any way that would make the representations in the certification incorrect. It must also state that all currently acting trustees are signing it.
One point worth flagging: the statute does not require the trustee’s address, even though many form templates include a field for it. Including it is fine; it just isn’t a statutory requirement.
What the Certification Leaves Out
The law draws a firm line around the trust’s dispositive provisions. A certification of trust cannot be required to contain the terms that spell out how the trust estate gets distributed, who inherits what, or under what conditions. This is the core privacy protection in Section 18100.5, and it applies no matter who is asking.
The trustee may optionally attach excerpts from the trust or its amendments, along with documents showing the succession of successor trustees. That is the trustee’s choice. No third party can demand the full trust instrument or the distribution terms as a condition of doing business.
How to Sign and Record It
Every currently acting trustee must sign. If three cotrustees serve, all three sign, and the document itself must say so.
The statute requires the certification to be in the form of an acknowledged declaration. An acknowledgment is a specific notarial act: the signer appears before a notary public, proves their identity, and confirms that they signed voluntarily. The notary then attaches an acknowledgment certificate verifying the signer’s identity, not the accuracy of what the certification says. California provides a standard acknowledgment form.
When the trust holds real property, the signed certification may be recorded with the county recorder in the county where the property sits. Recording is not required for every transaction, but title companies handling a sale or refinance typically want the certification on record to establish a clean chain of title. Recording fees vary by county.
The same process applies to successor trustees. A successor who steps in after the original trustee dies or becomes incapacitated signs a new certification as the currently acting trustee. Under subdivision (d), the certification may include excerpts showing how the successor obtained authority, and anyone affected by the certification can request copies of those succession excerpts. They still cannot demand the full trust or its distribution terms.
When a Third Party Can Ask for More
The certification is designed to be self-contained, but it is not an absolute wall. Under subdivision (e), a person whose interest could be affected by the certification may require the trustee to provide excerpts from the trust document. Those excerpts are limited to two things: provisions showing how the trustee came into the role, and provisions giving the trustee the power to act in the specific pending transaction.
That is a narrowly targeted right. A title company can see the clause authorizing the trustee to sell real property, for example, but cannot use subdivision (e) to pull in the entire trust or the distribution terms. The statute repeats this limit explicitly: nothing in the section creates an obligation to disclose the dispositive provisions or the full trust and its amendments.
Protection for the Bank, Title Company, or Buyer
Third parties who rely on a certification in good faith receive strong statutory protection. Anyone who acts on a certification without actual knowledge that its representations are incorrect has no liability for doing so, and they are not required to investigate the underlying trust.
Any transaction a third party enters into based on the certification is enforceable against the trust’s assets. If a title company closes a sale and a lien is created in reliance on the certification, that lien is valid even if something about the certification later turns out to be wrong, provided the third party had no actual knowledge of the problem.
Penalty for Demanding the Full Trust
The statute has teeth. If a third party demands the full trust document after receiving an acceptable certification, and a court later determines the demand was made in bad faith, the person who refused the certification is liable for the trustee’s damages, including attorney’s fees. This penalty does not apply when a beneficiary requests trust documents or in the context of trust litigation, where broader disclosure rules govern.
Revocable Versus Irrevocable and the Tax ID
The certification has to state whether the trust is revocable or irrevocable and name anyone with the power to revoke it. It also has to list the trust’s taxpayer identification number. For revocable trusts, that is typically the settlor’s own Social Security number, because the IRS treats the settlor as the owner of the trust’s income during their lifetime. Irrevocable trusts generally need their own employer identification number, since they are separate tax-reporting entities.
When to Prepare a New Certification
The statute does not set an expiration date, and it does not require a trustee to file an updated version after every trust amendment. But the certification must declare that the trust has not been modified in any way that would make its representations incorrect. That built-in accuracy requirement means the document becomes unreliable the moment the trust is amended in a way that changes any certified fact: a new trustee is named, the trust becomes irrevocable, the powers change, or real property is added or removed.
Prepare a new certification whenever the trust undergoes a significant amendment. An institution that discovers a stale certification with outdated trustee names or powers will refuse to proceed, and re-executing the document costs far less than the delay of a failed closing.