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The County of Sonoma Auditor-Controller-Treasurer-Tax Collector's Audit Division performs fiscal audits through out the county. The Audit division also manages the county and public fraud, waste and abuse whitsleblower hotline.

Audit Reports:

This page provides copies of all audit reports published by the Audit Division, organized by fiscal year of the audited period. Visit our Audit Reports section to view reports for audited entities and programs. A division-prepared schedule of special district audits is available on the Special District Roster website.

Fraud Hotline:

The County of Sonoma is committed to accountability, transparency, fairness, and the prudent use of public funds. Our goal is to foster and maintain a work environment based on the principle of financial integrity. This Fraud Hotline is available to County employees, members of the public and vendors as a means to anonymously report instances of suspected fraud, waste or abuse occurring within the County of Sonoma Government. Visit our Fraud Hotline section for more information.