Required Documents for California Unclaimed Property Claims (2026)

Most unclaimed property claims that get delayed or rejected fail because of missing documents. Here's the complete checklist by claim type so you can gather everything in one pass.

Always required

• A government-issued photo ID (driver's license, passport, or state ID)
• Your Social Security number
• A notarized claim affirmation form

For a basic bank or paycheck claim

• Proof of the address listed on the original report (a utility bill, lease, or pay stub from that period)
• If your address has changed, documentation of your address history

For 401(k) and retirement claims

• Old pay stubs, W-2s, or written employment verification from the former employer
• Proof of the address you used while employed there
• For inherited accounts, beneficiary or estate documentation (below)

For stock and dividend claims

• Account statements or stock certificates if you have them
• Proof of address at the time the shares were issued or last active

For life insurance claims

• A certified death certificate
• Proof that you are the named beneficiary, or the heir if there is no living beneficiary
• The original policy if available (not always required)

For estate and inheritance claims

• A certified death certificate
• A copy of the will (if one exists)
• Letters Testamentary or Letters of Administration from the probate court, or a California Small Estate Affidavit if the estate qualifies
• Proof of your relationship to the deceased (marriage certificate, birth certificate, adoption decree)
• Proof of the deceased's California connection

For business claims

• Proof the business existed (Secretary of State filings, EIN documentation)
• Authorization to claim on behalf of the business
• Proof of dissolution if the business no longer operates

A few practical tips

• Get certified copies of birth and death certificates from the county clerk. Photocopies are usually not accepted.
• For notarization, make sure the notary uses the form the State Controller provides — generic affidavit forms are sometimes rejected.
• Scan and keep digital copies of everything you submit; the SCO occasionally asks for additional copies during review.

When we handle the document collection

For our clients, we handle every step of document retrieval — including ordering certified death certificates from county registrars, requesting employment records, and arranging in-person notarization. You don't need to chase any of it down.