Auditor-Controller-Treasurer-Tax Collector
Since 2007, Erick Roeser has been an integral part of the Auditor-Controller-Treasurer-Tax Collector's office. Following his predecessor's retirement, the Board of Supervisors appointed Mr. Roeser as the Auditor-Controller-Treasurer-Tax Collector in June of 2017. He then went on to win his first election in June of 2018 and was most recently re-elected in June of 2022.
With over 30 years in public service, Mr. Roeser brings long-tenured leadership, experience, stability, and knowledge to the oversight of County finances and the Auditor-Controller-Treasurer-Tax Collector's office.
Change in Public Lobby Hours- Effective July 1, 2025
Effective Tuesday July 1, 2025, the Tax Collection Lobby will be open to the public:
Monday to Friday, 9:00 a.m. to 5:00 p.m. (Excluding County Holidays)
Assistance by phone will be availaible:
Monday to Friday, 9:00 a.m. to 4:30 p.m. (Excluding County Holidays)
Important Update for Mailed Tax Payments
The U.S. Postal Service has updated its postmarking procedures. Postmarks now reflect the date mail reaches a regional processing facility, rather than the date it is deposited at the local post office. As a result, postmark dates may be later than the date of mailing.
This change does not affect the Sonoma County Tax Collector's requirement that a valid USPS postmark is necessary to establish timely payment, per RTC 2512.
To ensure timely postmarking, the Sonoma County Tax Collector recommends doing one of the following:
- Request a manual postmark at the USPS counter
- Obtain a certifiate of mailing from USPS
- Use registered or certified mail
- Mail tax payments well in advance of the due date
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