Alameda County, California

Where to obtain records

Alameda County Tax Collector / Property Tax Records

How to find the information

The county tax portal explicitly separates secured, supplemental and prior-year delinquent property-tax searches. Its entry offers property address or parcel number. For unpaid history beyond the screen, request the Tax Collector account ledger; do not substitute an unsecured personal-property search.

For an existing delinquent secured-property report, parcel account/payment ledger, bill copy or dated redemption amount, provide the parcel/account/assessment reference, fiscal years, desired as-of date and inspection or electronic-copy format. Ask which current, supplemental, defaulted and payment-plan amounts are included, whether recent payments have posted, and whether any power-to-sell or sale status applies. Confirm record-copy, certification, research or extract fees. A valuation roll, recorded lien, payment screen or dated sale inventory does not certify today’s unpaid balance.

What to ask for

“I am looking for publicly available delinquent real-property tax records for Alameda County for [tax year]. Which office maintains these records? Is there an online search or downloadable list? If not, how can I request a copy, and what fees apply?”

Have the property address, parcel number, owner name, and tax year ready when searching for a particular property.

County-specific notes

The portal publishes fiscal-year payment availability windows. No taxpayer query or complete countywide delinquency export was tested. No taxpayer query, account registration, CAPTCHA verification, records-request submission, upload or payment was made. No taxpayer rows or owner-list attachments are included.