Certification of Trust in California: What the Bank Can Ask For

Short answer: No — you don’t have to hand the bank your entire trust. California law (Probate Code §18100.5) lets you give a short “Certification of Trust” instead. It proves the trust exists and spells out the trustee’s powers without exposing who your beneficiaries are or what they inherit. A bank or title company that refuses a valid certification and demands the full document anyway can be liable for damages.

Code section verified against California Probate Code §18100.5, 2026. This is general information, not legal advice for your situation.

You don’t owe them the whole trust

You open a bank account or refinance a Ventura rental in the name of your living trust, and the teller says, “We need to see the trust.” Your stomach drops, because that document names your kids, says who gets what, maybe disinherits someone, and lists dollar amounts you’d rather not share with a bank employee. Here’s the good news: you almost never have to give them the whole thing.

Probate Code §18100.5 created the Certification of Trust exactly for this. It’s a short sworn document — often just a few pages — that a trustee signs to prove two things: the trust is real, and the trustee has authority to act. It deliberately leaves out the private parts. The bank gets what it legitimately needs to protect itself, and your family’s business stays your business.

What a Certification of Trust actually contains

Under §18100.5, a valid certification typically states:

• That the trust exists, its name, and the date it was signed.
• The identity of the settlor (the person who created it) and the currently acting trustee.
• The powers of the trustee — for example, the power to buy, sell, borrow against, or hold the specific asset in question.
• Whether the trust is revocable or irrevocable, and who can revoke it.
• The trust’s taxpayer identification number (usually the settlor’s Social Security number while the trust is revocable).
• How title to trust assets should be taken (e.g., “Jane Doe, Trustee of the Doe Family Trust dated March 3, 2020”).
• A statement that the trust hasn’t been revoked, modified, or amended in any way that would make the certification wrong.

What it leaves out is the whole point: it does not have to include the parts of the trust that name your beneficiaries or describe how your assets get distributed. You can give the certification and hold back the distribution schedule entirely. The bank can ask for copies of just the pages that show the trustee powers and how the trust is signed — but not the dispositive terms.

When you’ll use one

This comes up constantly once your trust is funded. A few real examples:

• Opening a bank or brokerage account titled in the trust’s name.
• Refinancing a Camarillo home held in your trust — the lender wants proof the trustee can borrow.
• Selling trust real estate, where the title company needs to confirm the trustee’s authority to sign the deed.
• A successor trustee taking over after the original trustee dies or becomes incapacitated.

If you’re still getting assets into your trust in the first place, our guide on how to fund a trust covers the retitling steps where a certification usually shows up.

What if the bank won’t accept it?

Some institutions push back and insist on the full trust. Legally, they’re on thin ice. Section 18100.5 says a person who acts in reasonable reliance on a certification is protected — and it also provides that someone who refuses to accept a valid certification, and instead demands the trust’s terms be revealed, can be liable for damages, including attorney’s fees, if the refusal causes harm. In plain terms: the law leans in your favor. You can point them to the statute, have your attorney send a short letter, or sometimes offer the specific excerpt pages showing trustee powers as a compromise. You still don’t have to expose your beneficiaries.

Do I have to give the bank my entire trust document?

No. California Probate Code §18100.5 lets you provide a Certification of Trust instead — a short document proving the trust exists and stating the trustee’s powers, without revealing your beneficiaries or how assets are distributed. Most banks and title companies are required to accept it.

What is a Certification of Trust in California?

It’s a signed, sworn summary of your trust authorized by Probate Code §18100.5. It confirms the trust’s name and date, who the trustee is, whether the trust is revocable, and what powers the trustee has — while deliberately leaving out the private distribution terms. Banks, brokerages, and title companies use it to verify authority without seeing the whole trust.

Can a bank refuse to accept a Certification of Trust?

They can try, but they’re exposed if they do. Under §18100.5, a third party who refuses to accept a valid certification and instead demands the full trust terms can be held liable for damages, including attorney’s fees, if that refusal causes harm. You can cite the statute or have your attorney send a short letter.

What information does a Certification of Trust leave out?

It leaves out the dispositive terms — the parts that name your beneficiaries and describe who inherits what. That’s the entire benefit: the institution confirms the trustee’s authority and how to title the asset, while your family’s inheritance details stay private.

Who signs the Certification of Trust?

The currently acting trustee signs it, usually under penalty of perjury. For a typical revocable living trust, that’s you while you’re alive and well; after you die or become incapacitated, your successor trustee signs one to prove their authority to step in.

The bottom line

Your trust is a private family document, and California law says you get to keep it that way when you’re dealing with banks and title companies. A Certification of Trust under §18100.5 gives them the proof they legitimately need and nothing more. If an institution is demanding your full trust or a certification you’ve been handed doesn’t seem to satisfy them, talk to Eric — a one-page letter usually settles it.

Sources: Cal. Prob. Code §18100.5 (Certification of Trust; contents, third-party reliance, and liability for refusing a valid certification).