Treasurer-Tax Collector:
Tax Collector (1510P)

Program Outcome

Provides property tax billing and collection services.
Tax Puzzle

Program Services

  • Property Tax Services
  • Public Auctions for Tax Defaulted Property
  • Balances and Submits Apportionment Reports to the Controller
  • Transient Occupancy Tax


The Tax Collector’s Office is responsible for preparing and mailing property tax bills to collect Secured, Unsecured, and Supplemental taxes; the Office is also responsible for the collection of Transient Occupancy Taxes. Tax collection staff provide information and assistance to individual taxpayers; record payments and reconcile accounts with the Controller for all tax rolls; oversee tax defaulted or delinquent tax payments; and sell delinquent property at auction under the approval of the Board of Supervisors.

Dollars Collected for All Tax Rolls

Increasing dollars collected are a reflection of both our focused collection efforts, as well as the increasing dollar value of the Secured tax roll.

Secured Collection Rate Remains Steady

San Mateo County continues to maintain one of the highest Secured collection rates across California, at 99%.

Story Behind Performance

The Tax Collector's office collected $3.06 billion, exceeding the target of $3 billion for the fiscal year ended June 30, 2021. The most recent increase in collections may in part be attributed to the increased dollar value of the secured tax roll and the division's continued focus on collection efforts. San Mateo County continues to maintain one of the highest secured collection rates in California, at 99 percent. 

Future Priorities

  • Continue roll loading and roll correction developments to accommodate new file formats from the Assessor APAS system
  • Continue to work with CTL, ASR, and GSG to develop and accommodate new account numbers and fields for Hull Numbers, Property class
  • Conversion of legacy account numbers
  • Continue to test with Assessor and Controller for the Unsecured, Supplemental, Secured, and roll corrections
  • Begin testing bills and scan lines with Union bank with the new QR code placement

Author: Tiffany Htwe     Contact Email:     Last Updated: 6/7/22