ANNUAL AUDIT PLANNING FOR FY25 REPORT.PDF

Maricopa County — Formal (2024-06-26)

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Internal Audit’s Annual Planning Process 
The Maricopa County Internal Audit Department 
strives to provide independent, objective 
assurance and consulting services designed to 
add value and improve the County’s operations.   
We help the County accomplish its objectives by 
bringing a systematic, disciplined approach to 
evaluate and improve the effectiveness of 
governance, risk management, and control 
processes.   
Internal Audit establishes, in accordance with 
global audit standards, a risk-based audit plan 
annually to determine the priorities of audit work. 
This report describes the process we take when 
evaluating risks and developing an audit plan.   
 
Audit Work is Prioritized 
Based on Risk 
2 
Annual Audit Planning 
3 
Fiscal Year 2025 Audit 
Plan 
5 
 
ANNUAL PLANNING FOR FY 2025 
Internal Audit Department 
June 2024 
 
Review the County Strategic Direction
Meet with County Management
Interview Key Support Departments
Meet with Select Department Management
Review Areas of Risk Identified  
Prepare Annual Audit Plan
Board Approves the Audit Plan
Google Images iStock (Eric Mischke)

Maricopa County Internal Audit 
 
Annual Planning for FY2025 (June 2024) 
Page 2 
AUDIT WORK IS PRIORITIZED BASED ON RISK 
 
Internal Audit defines risk as the possibility of an event occurring that will have an adverse 
impact on the achievement of County objectives.  County management is responsible for 
establishing risk management and control processes, while Internal Audit evaluates its 
effectiveness and makes recommendations.   
 
The Board of Supervisors (Board) and County leadership establish the direction of County 
operations through the development of a four-year strategic plan as a road map for the future.  
Through the development of strategic goals and performance measures, County leaders and 
managers are entrusted to execute the plan.  Risks that threaten the strategic plan can be 
difficult to manage due to Maricopa County’s diverse physical, financial, and operational 
environment. 
 
Internal Audit relies on a continuous risk assessment process to improve our responsiveness to 
the ever-changing County environment.  The annual planning process starts with understanding 
the Board’s established strategic direction, obstacles that may impede that direction, and areas 
deferred during the prior year’s planning process.  Additional information is obtained through 
discussions with those having key roles throughout the County.      
   
Roles for Successful Governance, Risk Management, and Control Processes 
Effective governance, risk management, and control processes require collaboration by several 
roles to implement strategies, achieve objectives, and manage risks.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
An Enterprise-wide Effort is Essential 
Management
Front line and upper-level management that own and
 manage strategies, objectives, risks, and controls.
Internal Support
Monitors and contributes to 
achievement of the objectives.
Internal Audit
Evaluates the 
effectiveness of 
County 
efforts.

Maricopa County Internal Audit 
 
Annual Planning for FY2025 (June 2024) 
Page 3 
 
 
Management is responsible for developing strategies and objectives to achieve the overall 
mission and vision.  Success requires the implementation of effective governance, risk 
management, and internal controls.  To assist in developing the annual audit plan, we met with 
the Board, County leadership, and departmental leadership to gain a better understanding of 
their processes. 
 
Internal support such as finance, budget, risk management, procurement, information 
technology, continuous improvement, and human resources play an important role.  As a 
second line of defense, these functions provide support to management and help them 
achieve their strategies and objectives.  We met with each internal support department to 
learn their impressions of management’s governance, risk management, and control 
processes. 
 
Internal Audit provides independent and objective assurance on the adequacy and 
effectiveness of the County’s governance, risk management, and control processes.  We also 
serve as a resource to managers and supervisors in identifying areas for improvement.  We 
reviewed process level risks for many areas throughout the year to identify potential audits.  We 
then applied the risk-related insights and knowledge we gain to the annual audit planning 
process. 
 
In addition to the roles discussed above, the County is subject to external reviews and audits 
from various regulators and independent parties.  These parties can provide external insights 
into risk evaluation and improvement opportunities.  We considered these external reviews and 
audits when developing our annual audit plan. 
 
 
ANNUAL AUDIT PLANNING 
 
In addition to the feedback described above, we considered several other factors when 
evaluating risks and developing the annual audit plan: 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
Public 
Impact 
Emerging 
Trends
Financial 
Impact
Executive 
Leadership Input 
& Expectation
Technology 
Risk
Reputation 
Risk
Auditor 
Judgment
Audit 
Resources
Factors that Influence the Annual Audit Plan

Maricopa County Internal Audit 
 
Annual Planning for FY2025 (June 2024) 
Page 4 
 
 
Audit Resources Influence the Audit Plan 
The Board establishes our staffing level, balancing risk and audit coverage with budgetary 
requirements.  A well-staffed internal audit function that regularly audits high-risk areas can 
identify waste and non-compliance.  It can also assist management in the decision to avoid, 
share, reduce, or accept risks.  Our work provides meaningful assurance, advice, and insight to 
the Board on key risks so they can make informed decisions.  We apply professional judgment 
and experience to prioritize high-risk areas and maximize limited resources using internal staff 
and external specialists (subject-matter experts). 
 
Finalizing the Audit Plan 
 
Once risks were evaluated, we developed a draft audit plan for the upcoming year by: 
• Considering requirements for audits on a defined schedule and for mandated audits. 
• Analyzing audit competency requirements and resources available to complete the work. 
• Discussing the draft audit plan with County leadership. 
 
After the draft audit plan has been prepared and reviewed, we seek formal approval for the 
audit plan from the Board prior to the start of the new fiscal year.  The fiscal year 2025 Board-
approved audit plan is on page five.

Maricopa County Internal Audit 
 
Annual Planning for FY2025 (June 2024) 
Page 5 
FISCAL YEAR 2025 AUDIT PLAN 
 
Agency Engagements 
Animal Care & Control – New Hope & Volunteer Programs 
County Attorney – Risk Assessment 
Human Resources – Workday Internal Controls 
Human Services – Risk Assessment 
Office of Budget and Finance – Central Service Cost Allocation 
Office of Enterprise Technology – Device Refresh Program 
Sheriff’s Office – Investigations Case Management 
Sheriff’s Office – Off-Duty Employment 
 
Countywide Engagements 
Accounts Payable – Department Level Controls 
Artificial Intelligence Governance 
Control Environment – Maturity Assessment (Carryover) 
Information Technology – Incident Response Management 
Information Technology – Risk Assessment Refresh 
Single Audit Reporting Compliance – Grant Subrecipients 
Other Requested Engagements 
 
Continuous Monitoring 
Capital Improvement Projects 
Mobile Device Management 
Purchase Cards 
Other Areas as Determined 
 
Accounting Reviews 
Adult Probation Department 
9 Justice and 1 Municipal Courts 
 
Other Reports 
Audit Plan Report 
Audit Recommendations Outstanding More than One Year 
Internal Audit Department Performance Report