About the Office

Welcome to Maricopa County Internal Audit


Welcome to the Maricopa County Internal Audit Department website. We are committed to serving our customers by providing clear and concise information in a format that is easy to use and understand. We are interested in any suggestions you might have. Please contact us and provide us with your feedback.

Our Mission Statement


The Mission of Internal Audit is to provide objective information on the County's system of internal controls to the Board of Supervisors so they can make informed decisions and protect the interests of County citizens.

Our Vision Statement


To facilitate positive change throughout the County.

Our Value Statement


To promote the effective, efficient, economical, and ethical use of public resources.

Our Motto


"Do The Right Things Right!"

Our History


The Board of Supervisors appointed the first County Auditor on August 8, 1978, thus establishing an internal audit function. On September 7, 1994, the Board of Supervisors created a Citizens Audit Advisory Committee comprised of private individuals and County officials. In June of 1997, the Board of Supervisors formalized the County's internal audit function by adopting a department charter.

Our Basic Premise


The Internal Audit Department's basic premise is that County resources are to be applied efficiently, economically, and effectively to achieve the purposes for which the resources were furnished. This premise is incorporated in the following objectives.

Our Objectives


The main objectives of the Internal Audit Department are to determine that those entrusted with County resources are establishing and maintaining effective controls to ensure:
  • Identification of and compliance with applicable laws and regulations
  • Programs meet their goals and objectives
  • Resources are safeguarded against waste, loss, and misuse
  • Valid and reliable data are obtained, maintained, and fairly disclosed

Our Commitment to the Community


Our commitment to the community is demonstrated through our active involvement in many professional organizations such as the Association of Local Government Auditors, American Institute of Certified Public Accountants, Institute of Internal Auditors, and the Information Systems Audit and Control Association. Our commitment to excellence is demonstrated by the many professional licenses and certifications attained by staff. More information can be found in our Annual Internal Audit Performance Report.