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A Message from the Treasurer-Tax Collector

The Treasurer-Tax Collector’s Office proudly serves the residents and taxpayers of San Joaquin County. Our mission is to ensure the safekeeping of public funds while maintaining liquidity and maximizing earnings in a conservative and prudent manner. We strive to provide the highest level of service in a professional, courteous, and efficient manner as we collect taxes and revenues critical to local government operations that benefit San Joaquin County and its citizens.

In an effort to better serve you, we welcome your comments and suggestions. Please e-mail us at tax@sjgov.org and thank you for visiting our website!


Phonxay Keokham, CPA
Treasurer-Tax Collector
San Joaquin County

Phonxay

Treasury

Providing banking and Investment services to County departments, schools, and special districts, we oversee bank relationships and manage the investment pool in a prudent manner ensuring safety, liquidity, and a return on investment on public funds.
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Tax

Overseeing the property tax billing and collection process for secured and unsecured property taxes levied by California state law, we assist the public in understanding their property taxes and making payments. We also issue business licenses in unincorporated County areas.
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Revenue & Recovery

Collecting monies owed to the County and court ordered fees, fines, and restitution, we provide billing and collection services, make payment arrangements, and take appropriate legal action to make our clients and victims whole.
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Buildings under construction

Public Auction

March 5-6, 2025

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Important Dates

05 Mar

Public Online Auction Date

March 5, 2025

We will be conducting an online auction of tax defaulted property for delinquent taxes starting May 5th thru May 6th. Please check on the auction page for more details.

10 Apr

Secured Taxes Second Installment Delinquent Date

April 10, 2025

Last day to pay second installment of secured taxes without penalty.

07 May

Last Day to Timely File a Business Property Statement without Penalty

May 7, 2025

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