Auditor Controller Treasurer Tax Collector

Contact the Auditor-Controller-
Treasurer-Tax Collector's Office

Administration and Policy Development

Contact:Erick Roeser
Auditor-Controller-Treasurer-Tax Collector
Phone:(707) 565-3285
Contact:Jonathan Kadlec
Assistant Auditor-Controller-Treasurer-Tax Collector
Phone:(707) 565-6124
Contact:Amanda Thompson
Assistant Auditor-Controller-Treasurer-Tax Collector
Phone:(707) 565-3274
Contact:Julianne Kamplain, Administrative Services Officer
Phone:(707) 565-3583

General Accounting

Contact:Levi Ehrlich, Manager
Phone:(707) 565-3289

Audit Division

Contact:Kanchan Charan, Manager
Phone:(707) 565-8300

Client Accounting Division

Contact:Randy Siple, Manager
Phone:(707) 565-3671

Property Tax Accounting Division

Contact:Brooke Koop, Manager
Phone:(707) 565-3294

Tax Collection Division

Contact:Sandra Kacharos, Manager
Phone:(707) 565-3232


Fiscal Building: (707) 565-3489
Audit Division: (707) 565-8308
Payroll Division: (707) 565-4694

Contact Information

Auditor–Controller Treasurer–Tax Collector
County of Sonoma
Business Hours
Monday – Friday
8:00 AM – 5:00 PM
585 Fiscal Drive
Suite 100
Santa Rosa, CA 95403
38.465764, -122.725126