Attention Taxpayers : The Secured tax bills are in the process of being printed and mailed. If you do not receive a tax bill by November 6th, you may call our office for a duplicate at 866-220-0308. You may also access your tax information on this website. The final due date for the 1st installment of Secured taxes is 12/10/2020.
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Tax Collector Drop Box Location


San Mateo County Treasurer/Tax Collector, Sandie Arnott, an elected official, is charged with managing and protecting the County’s financial assets. She acts as the banker for the County and directs the investment of the County’s funds. The funds are invested in a portfolio of credit instruments called a pool. County Pool depositors include the County of San Mateo, elementary schools, high schools, community colleges and various other special districts and agencies within the County. It is the Treasurer’s mission to provide all pool participants with safety, liquidity and yield on their investments.

Recent Reports

Investment:                  October 2020

Compliance:                 October 2020

Absent Heirs:               November 2020

Closed RFP : RFP for Investment Advisory Services

Closed RFP: RFP for Investment Compliance Services

Closed: RFI - Broker/Dealer