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California power of attorney requirements

A California power of attorney must be dated, signed by the principal, and either acknowledged before a notary public or signed by two adult witnesses. The attorney-in-fact you are naming cannot serve as a witness.

Notary
One option: acknowledged before a notary public
2 witnesses
Alternative: two adult witnesses (not the agent)

California Probate Code 4121, read Oct 7, 2026. See source

An adult daughter hugs her smiling older parents at their kitchen table.
On this page
  1. Key facts
  2. What the statutes say
  3. California POA execution options
  4. How to execute a California POA
  5. California power of attorney questions
  6. Online power of attorney documents
  7. Sources

Key facts

  • A California POA must contain the date of execution1.
  • The principal may be signed for by another adult acting in the principal's presence and at the principal's direction1.
  • Either a notary acknowledgment or two adult witnesses satisfies the execution requirement - choose one1.
  • The attorney-in-fact (your agent) cannot be a witness2.

What the statutes say

Probate Code 4121 sets out a three-part test for a legally sufficient power of attorney. First, the document must contain the date of execution. Second, it must be signed by the principal, or by another adult in the principal's presence and at the principal's direction. Third, it must be either acknowledged before a notary public or signed by two witnesses who meet the requirements of section 41221.

Section 4122 imposes two requirements on those witnesses: they must be adults, and the attorney-in-fact named in the document may not act as a witness2. This prevents the person receiving the power from participating in its execution. California does not enumerate additional disqualifying relationships the way some states do, so family members may serve as witnesses as long as they are not the named agent.

Unlike New York - which requires both a notary acknowledgment and two witnesses for a power of attorney - California treats notarization and witnessing as alternatives. Many online services default to the notary path because it is more widely accepted by banks and financial institutions.

California POA execution options

OptionRequirementsPractical note
Notary acknowledgment1Principal signs before a notary public who completes the acknowledgmentPreferred by most financial institutions; mobile and online notaries are available in California
Two adult witnesses2Two adults (not the attorney-in-fact) sign as witnessesNeither witness may be the named agent; otherwise no statutory restriction on who may witness
SourceCalifornia Probate Code 4121 and 4122Read Oct 7, 2026California Probate Code 4121 and 4122Read Oct 7, 2026

Only one of the two options is required. The document must also contain the date of execution.

How to execute a California POA

  1. Step 1

    Draft the document with the date of execution

    Section 4121(a) requires the date. Online services insert it automatically. For a durable POA, include language stating the instrument is not affected by subsequent incapacity.

  2. Step 2

    Sign the document as principal

    Sign yourself or have another adult sign in your name in your presence and at your direction.

  3. Step 3

    Choose: notary acknowledgment or two adult witnesses

    If using a notary, sign before the notary who completes the acknowledgment. If using witnesses, both adults sign; neither may be the attorney-in-fact named in the document.

  4. Step 4

    Give a copy to your agent

    Your agent will need to present the POA to banks and other institutions. Keep the original in a safe place.

  5. Step 5

    Notify institutions in advance

    Some California banks prefer notarized POAs. Contact them before an emergency arises to confirm what they accept.

California power of attorney questions

Does a California POA need both a notary and witnesses?

No. Section 4121 makes notarization and witnessing alternatives. You need either a notary acknowledgment or two adult witnesses, not both.

Can my spouse or child be a witness?

Yes, unless they are named as the attorney-in-fact in the document. Section 4122 prohibits the agent from serving as a witness but does not restrict other family members.

What makes a POA durable in California?

A California durable power of attorney must include a statement that it is not affected by the principal's subsequent incapacity or lapse of time. The standard phrase is 'This power of attorney shall not be affected by subsequent incapacity of the principal.' Probate Code 4124 governs durable powers.

How do I revoke a California POA?

Sign a written revocation and deliver it to your agent. Notify every institution holding a copy of the original. See the guide on revoking a power of attorney.

Do I need a lawyer to make a California POA?

Not necessarily. Online services guide you through California-specific questions and execution steps. A complex estate or healthcare decision situation is a reason to speak with a California-licensed attorney.

Online power of attorney documents

Good for choosing durable, ordinary or springing with a California questionnaire

LawDepot

See LawDepot POA

Good for a financial power of attorney from online questions

LegalZoom

Listed price
Basic $39, Premium $49
Checked
Oct 7, 2026
See LegalZoom plans

Sources

  1. California Probate Code 4121, Legally sufficient power of attorneyCalifornia Legislative Information, read Oct 7, 2026
  2. California Probate Code 4122, Witness requirementsCalifornia Legislative Information, read Oct 7, 2026

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WillWise Guide is not a law firm, does not give legal advice and does not match anyone with a lawyer. For advice about your situation, speak to a lawyer licensed in your state.