Information only, not legal or financial advice. This guide summarizes what institutions and California law publish. Rules change and every family is different. Talk to a California-licensed attorney before signing or relying on a power of attorney.
1. Is the document valid in California?
- It shows the date it was signed. § 4121(a) ↗
- Your parent signed it (or another adult signed for them, in their presence and at their direction). § 4121(b) ↗
- It is notarized, or signed by two adult witnesses, neither of whom is you (the agent). §§ 4121(c), 4122 ↗
- If it's the official statutory form, it is notarized (witnesses alone aren't enough). § 4402 ↗
- It contains durability language so it survives incapacity. § 4124 ↗
- Notary or two witnesses present: an institution that relies on it in good faith, when you present it, gets legal protection. That's a reason to have it. § 4303 ↗
2. Before you visit any institution
- Make copies and keep the original safe. Chase asks you to bring the POA document. Wells Fargo keeps a copy. Fidelity and Schwab accept uploads.
- Bring two forms of ID for yourself (Chase and Bank of America both list ID requirements on their pages).
- List your parent's account numbers at each institution (Bank of America asks for this list).
- If the POA is "springing" (only effective on incapacity), get the doctor's letter or declaration it requires. Bank of America and Chase both mention physician letters.
- For Social Security, a POA is not enough. Apply to be representative payee (details).
3. What California law says (verified, with links)
- A California power of attorney is legally sufficient if it (a) contains the date it was signed, (b) is signed by the principal (or by another adult in the principal's name, in the principal's presence and at their direction), and (c) is either acknowledged before a notary public or signed by at least two qualifying witnesses. Cal. Probate Code § 4121 ↗
- If witnesses are used instead of a notary: witnesses must be adults, the agent (attorney-in-fact) may not be a witness, and each witness must see the principal sign, or hear the principal acknowledge the signature or the document. Cal. Probate Code § 4122 ↗
- To be 'durable' (keep working if the parent later loses capacity), the POA must contain language such as “This power of attorney shall not be affected by subsequent incapacity of the principal” (or “shall become effective upon the incapacity of the principal” for a springing POA, or similar words). Cal. Probate Code § 4124 ↗
- California has an official 'Uniform Statutory Form Power of Attorney' (Probate Code § 4401). The online code notes that the full form text appears in the chaptered bill: Statutes of 2011, Chapter 113 (AB 1082), pages 3–5. Cal. Probate Code § 4401 ↗
- The statutory form is legally sufficient only if its wording substantially complies with § 4401, it is properly completed, and the principal's signature is acknowledged (notarized). Witnesses alone are not enough for the statutory form. Cal. Probate Code § 4402 ↗
- If a third party (for example a bank) refuses within a reasonable time to honor a properly executed statutory form POA, the agent can sue to compel it, and the court must award the agent attorney's fees if the refusal was unreasonable. A refusal is deemed unreasonable if the only reason is that the POA is not on the institution's own form. A refusal authorized or required by state or federal statute or regulation is not unreasonable. Cal. Probate Code § 4406 ↗
- New law: AB 2199 was signed June 30, 2026 (Chapter 47, Statutes of 2026). It repeals and replaces the § 4401 statutory form with an updated form (including digital-asset powers tied to California's Revised Uniform Fiduciary Access to Digital Assets Act) and adds § 4466. The Assemblymember's office says it takes effect January 1, 2027. Forms signed before then on the older form are not addressed here; ask an attorney. AB 2199 (2025–26), Ch. 47, Stats. 2026 ↗
If an institution refuses
Under Probate Code § 4406, for a properly executed statutory form POA: you can sue to compel acceptance; the court must award you attorney's fees if the refusal was unreasonable; and refusing only because it isn't the institution's own form is deemed unreasonable. Ask for the refusal reason in writing, then consult an attorney.