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Personal property tax must be paid by Aug. 31
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San Joaquin County Assistant Treasurer-Tax Collector  Phonxay Keokham has mailed personal property tax bills to approximately 15,000 business, boat, and aircraft owners in San Joaquin County as of July 23.

Payment is now due and will be delinquent if not paid by Aug. 31.

Owners of personal property in San Joaquin County such as a boat or aircraft or have leased or owned fixtures and equipment related to a business on Jan. 1, 2018 must pay the tax.

To view your taxes or pay online using a credit card, debit card, or e-check go to or by phone, dial (866) 954-1829. A convenience fee is charged by the company supporting the website/phone service.  This convenience fee is in addition to the personal property tax amount paid.  There is no convenience fee for e-check payments.

If you do not receive a tax bill by Aug. 1, call the San Joaquin County Treasurer-Tax Collector’s Office, Unsecured Section, at (209) 468-2133. Failure to receive a tax bill shall not relieve the lien of taxes, nor shall it prevent the imposition of penalties.

If the bill is not paid by 5 p.m., Friday, Aug. 31, a 10 percent penalty will apply.  Additional penalties and fees will be added if unpaid after 60 days.  Payment received through the United States mail, post marked on or before Aug. 31, will be considered timely.  Payment may be sent by mail to P.O. Box 2169, Stockton, CA 95201-2169.

Payments can also be made at the San Joaquin County Treasurer-Tax Collector’s Office located at 44 N. San Joaquin Street, Suite 150, Stockton, CA (entrance is on the Weber Avenue side of the building).  Our regular business hours open to the public are 8:30 a.m. to 4:30 p.m. Monday through Friday, excluding holidays.  However, we will remain open until 5:00 p.m. on Friday, Aug. 31