Internal Audit Services

Internal Audit Program Mission

To strengthen County operations and minimize risk and fraud through systematic evaluation of operations and internal controls.

• To assist senior management and departments to effectively and efficiently implement County programs in compliance with financial, accounting and other County policies by conducting objective internal audits and reviews.
• To test internal controls to provide reasonable assurance that resources are safeguarded against waste and abuse.
• In conjunction with the County Manager’s Office and other departments, implement the Financial Fraud, Waste and Abuse Hotline 

Organization

Internal resources and external consulting services will together implement the annual Work Plan and any unexpected needs. In the Fiscal Year (FY) 2015 Adopted Budget, the County Board approved funding for one internal audit position, bringing the total number of internal resources to support this function to 1.5 FTEs. Presently, RSM US, LLP. — a major provider of assurance, accounting and consulting services to governments and corporations — is working with the County to complete the Work Plan.

Work Plan and Completed Reports

FY 2025

• Internal Audit Work Plan - Fiscal Year 2025(PDF, 599KB) *new

FY 2024

• Internal Audit Work Plan for First Half of FY 2024(PDF, 498KB)
• Internal Audit Work Plan for Second Half of FY 2024(PDF, 570KB)
• Internal Audit – Human Resources Division - Contract Compliance – Helmsman Contract 19-147-RFP, Workers' Compensation Portion(PDF, 385KB)
• Internal Audit Purchase Card Monitoring Program Executive Summary - December 2023(PDF, 174KB) *new
• Internal Audit – Dependent Eligibility for Health and Dental Benefits Audit(PDF, 249KB) *new
• Internal Audit – Department of Human Services - Contract Compliance - Arlington Thrive, Inc.(PDF, 512KB) *new
• Internal Audit – Department of Parks and Recreation - Fitness Membership Charges, Receipts and Funds Handling(PDF, 370KB) *new 

FY 2023

• Internal Audit Work Plan for First Half of FY 2023(PDF, 464KB)
• Internal Audit Work Plan for Second Half of FY 2023(PDF, 435KB)
• Internal Audit – Invoice Review and Approval Audit(PDF, 247KB)
• Internal Audit – Fire Department: Billing, Receivables and Funds Handling(PDF, 642KB)
• Contract Compliance – Fire Department Contract 20-071-RFP(PDF, 413KB)
• Internal Audit – Interdepartmental Purchasing(PDF, 364KB)
• Internal Audit Purchase Card Monitoring Program Executive Summary - June 2023(PDF, 168KB) *new
• Internal Audit Purchase Card Monitoring Program Executive Summary - December 2022(PDF, 176KB)
• Internal Audit Purchase Card Monitoring Program Executive Summary - September 2022(PDF, 176KB)

Archive: FY 2015 - FY 2022 Work Plans and Reports