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Welcome to the Denver Auditor's office. Auditor Timothy M. O'Brien, CPA is Denver's Auditor.

Welcome to the Office of Auditor Timothy M. O'Brien, CPA

Denver has an independently-elected Auditor to serve as a check and balance on Denver's "strong mayor" form of government. Timothy M. O'Brien, CPA, was elected to a four-year term as Denver's 24th Auditor in 2015. The Auditor's Office is responsible for internal audit services and prevailing wage enforcement.

Ask the Auditor

Episode 2:

How does an audit of a city agency affect you? Whether an audit uncovers fraud or hidden resources, Denver Auditor Timothy M. O’Brien, CPA, explains how the Office of the Auditor’s work directly affects the citizens of Denver in the second episode of Ask the Auditor. Submit your questions to, and your question may be answered in the next episode!


Educating Contractors

We are working to educate and assist contractors and employers across the city. LCP Tracker is an essential tool for contractors to ensure they are complying with prevailing wage. Watch some of our tutorial videos for help setting up your payroll reporting account. As always, our prevailing wage investigators are happy to help. Call our hotline: 720-913-5000.

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Audit Services

Audit ServicesConducting independent financial, compliance, and performance audits of City agencies, programs, and contracts.

Audit Reports
Other Reports
Peer Review



Prevailing Wage

Prevailing WageEnforcing the City’s prevailing wage requirements to ensure that contractors and subcontractors working for the City pay their employees nothing less than the appropriate rate for the classification of worker.




Audit Committee

Audit CommitteeAssisting the Auditor in the Auditor’s oversight responsibilities of the integrity of the City’s finances and operations. Receives the results of the internal audits conducted by the Auditor.