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Treasurer - Tax Collector


If taxpayers are unable to pay their 2019 second installment due to the COVID-19 pandemic they may be eligible for relief from penalties, costs, and interest by filing a   claim for refund form. Taxpayers must demonstrate economic hardship or was otherwise unable to pay their 2019 second installment due to the COVID-19 pandemic.


In an effort to continue to support the community and our employees, we recommend alternate payment methods such as   paying online, by phone (866) 954-1829,   mailing your payment, or using our   drop box.

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 matter. 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 and thank you for visiting our website!


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Secured Second Installment Due

The second installment was due on February 1, 2020, and will become delinquent if not paid by 5:00 p.m., or the close of business, whichever is later, on May 11, 2020; thereafter a 10% penalty and $10.00 cost will be added. 

Secured property tax information for 2018-19 and 2019-20 are available for viewing on this website. Please use the quick link View or Pay Property Taxes

Secured Tax Bills

Payments Online and by Phone

Please use the quick link View or Pay Property Taxes or call (866) 954-1829. 


Payments by Mail

Property tax payments must be received or postmarked by the United States Postal Service (USPS) by the delinquent date. Taxpayers who send their payments by mail should be aware that the USPS only postmarks certain mail depending on the type of postage used. Payments should be mailed to:


P.O. Box 2169

Stockton, CA, 95201-2169.

Payments in the Office

The San Joaquin County Treasurer-Tax Collector's Office is located at 44 North San Joaquin Street, First Floor Suite 150, Stockton, CA 95202. We are open Monday through Friday 8:30 a.m. to 4:30 p.m. There is a drop box located in front of the County Administration Building available for drop off of payments by check or money order.  

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  Phonxay Keokham, CPA
  Treasurer-Tax Collector
Contact Us

Treasurer-Tax Collector
44 North San Joaquin Street
First Floor, Suite 150
Stockton, CA 95202
Phone: (209) 468-2133
Fax: (209) 468-2158

Mailing Address

Treasurer-Tax Collector's Office
P.O. Box 2169
Stockton, CA 95201-2169

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