Auditor-Controller

Finance Building

PLEASE NOTE: OUR OFFICE BUILDING IS CURRENTLY CLOSED TO THE PUBLIC WHILE THE HEALTH ORDER COVID 19-17 IS IN EFFECT .

To contact our office while the Health Order is in place, please: 

  • use our Contact Us page - or -
  • email us at info@ac.cccounty.us - or -
  • call our main phone number at (925) 335-8600. Phone calls will be answered between 9:00 am and 2:30 pm.

Click here for the latest information on County’s Health Order.

Mandate and Mission

The Auditor-Controller is the Chief Accounting Officer for the County. His mandate is to ensure the required Auditor-Controller functions specified in the California Constitution, under various California codes, and by the Board of Supervisors are performed. The duties are performed under the legal authority primarily set forth in the Government Code beginning with Sections 26880 and 26900.

The Office of the Auditor-Controller’s primary mission is to ensure the fiscal integrity of the County’s financial records and to provide service, assistance and information to the Public, Board of Supervisors, County Administrator’s Office, County Departments and Employees, Special Districts and some regional non-county agencies. We are committed to providing exemplary professional service to all of our customers, while at all times treating them with fairness, integrity, respect and trust.