Business
Internal Audit Checklist
Review the key areas of an internal audit checklist to ensure your business controls still support its current operations.
Table of Contents
- Expert Arm
- 7 min read
The Internal Audit Checklist Businesses Should Review Annually
Every business needs an annual internal audit, but it should be more than just a formality. It’s essential to know if your controls are still effective for the current state of your business.
As your company grows, everything changes, new hires come on board, responsibilities shift, and processes evolve. What worked two years ago might not suffice today.
That’s why your annual review must focus on more than compliance. It should empower leadership to identify weak controls, recognize shifting risks, and prioritize necessary improvements.
This checklist highlights essential areas to examine and what to seek beyond mere documentation.
Why Annual Internal Audits Matter
A business can pass routine checks and still have control weaknesses.
Think about what happens during rapid growth!
As you bring in new employees, approval processes become more complex with additional participants involved. Different teams begin to manage the same processes, leading to potential overlaps and confusion. New suppliers and contracts come into play, adding layers to the existing operations. The business continues to grow and evolve, but controls might struggle to keep pace.
The Financial Reporting Council's 2024 Corporate Governance Code requires boards of covered companies to monitor risk management and internal controls and review their effectiveness at least annually. The review covers material financial, operational, reporting, and compliance controls.
The takeaway is important. An annual internal audit should not simply ask whether last year's controls still exist. It should ask whether those controls are still fit for the business you operate today.
Key Internal Audit Areas
A useful internal audit checklist should focus on areas where a control failure could affect financial performance, operations, reporting, compliance, or governance.
Here are the main areas leadership should review.
Governance and Leadership Oversight
Start with accountability.
Review whether:
- Board and management responsibilities are still clear
- Approval authorities match the current structure
- Policies reflect how the business actually operates
- Key risks have clear owners
- Previous audit findings were properly addressed
There is an important difference between having a policy and following it in practice. For example, a company may have a documented approval structure.
But what happens when an urgent payment needs approval? If employees regularly bypass the stated process because it slows operations, the policy may look good on paper but fail in practice.
That gap is worth investigating!
Financial Controls
Financial controls deserve particular attention when a business has grown or changed its structure.
Focus on financial oversight and access to records. It's essential to prioritize areas where control failures could lead to significant issues. Instead of testing every transaction, concentrate on high-risk areas that could impact financial, operational, or reporting outcomes. This targeted approach enhances overall control effectiveness.
For example, payment approvals may deserve more attention than a low-value administrative expense. The question is not simply, "Is there a control?"
It is: "Does the control reduce the risk it was designed to manage?"
Operational Controls
In the procurement process, it's important to clarify who is responsible for confirming receipt of goods, checking the accuracy of the invoice, and ultimately releasing the payment. These roles ensure that everything is in order before any funds are disbursed, helping to maintain financial integrity and accountability within the organization.
If responsibility becomes unclear between departments, a control gap can appear without anyone deliberately creating it. That is why an effective review looks at how a process actually works, not just how it is documented.
Fraud Risk
Fraud risk deserves more than a quick check that an anti-fraud policy exists. Leadership should ask where fraud could occur. Outdated approval requirements are a significant concern. The data highlights the urgency of addressing this issue.** **
The ACFE's 2026 Report to the Nations analysed 2,402 occupational fraud cases across 143 countries and territories. It estimated that organisations lose around 5% of revenue to fraud each year, with a median loss of $104,000 per case. The report also found that organisations with anti-fraud controls experienced lower losses and faster detection.
That puts the checklist into perspective. Fraud risk is not just a compliance issue. It can directly affect financial performance.
Internal Audit Priority Areas
A simple checklist can help leadership organise the review.
But here is the catch. A checklist only tells you what to examine. It does not tell you whether a control actually works. That requires testing and judgement.
A Risk-Based Internal Audit
Not every business process carries the same level of risk.
So why give every control the same level of attention?
A risk-based internal audit focuses more time and resources on areas with greater potential impact, likelihood, complexity, or changing exposure. The IIA's Global Internal Audit Standards require internal audit functions to develop a risk-based internal audit plan that considers organisational objectives, risks, and changes in the risk profile. The standards also require consideration of fraud risk when developing the audit plan.
In practical terms, the audit plan should change when the business changes.
When Outsourced Internal Audit Helps
An internal audit function does not always need to be fully built inside the organisation.
An outsourced internal audit can be useful when a business:
- Has limited internal resources
- Needs an independent assessment
- Requires specialist expertise
- Wants additional capacity for a specific risk area
The important point is independence. An outsourced team should assess, challenge, and recommend. Management should still own the decisions and the controls.
That means an outsourced internal audit can work alongside finance, risk, and operational teams without taking over management responsibilities.
Final Executive Thought
An internal audit checklist should not become a yearly exercise in ticking boxes. Its real value is helping leadership determine whether controls still match the risks created by the organisation's current structure, growth, operations, and governance requirements.
If your business has changed significantly since the last review, let us look at whether your current controls still make sense.
FAQs
We already have external auditors. Why do we still need internal audit services?
External financial statement audits and internal audits have different purposes. Internal audit services can assess internal controls, governance, operational risks, and emerging exposures from a management and board perspective, beyond financial statement assurance.
How do we know whether our internal audit process covers the risks that matter?
A useful audit plan should reflect current objectives, material risks, organisational changes, and previous findings. Reassessing priorities instead of repeating last year's scope helps leadership direct assurance toward areas where control failure could have a material impact.
Can outsourced internal audit work alongside our existing finance and risk teams?
Yes. An outsourced internal audit can complement existing capabilities without transferring management responsibility. The audit team can assess controls independently, communicate findings clearly, and recommend improvements while management retains ownership of decisions, remediation, and daily control operations.
What should we do when the same control weaknesses keep appearing every year?
Recurring findings usually need more than another corrective-action deadline. The weakness should be traced to its underlying process, accountability, or governance issue. This helps management understand why remediation failed and what practical action can address the root cause.
How should fraud risk assessment influence our annual audit plan?
Fraud risk should influence where internal audit directs attention, particularly where weak segregation, limited oversight, unusual transactions, or other vulnerabilities create exposure. Assessing fraud alongside the wider control environment helps leadership prioritise appropriate prevention and detection measures.
When should the board reconsider its current internal audit approach?
The board should reassess the approach when business complexity changes materially, recurring findings remain unresolved, important risks fall outside audit coverage, or independent assurance is lacking. These signs may indicate that the current audit scope no longer matches organisational risk.
Author
Article prepared by Javeria Ahmed
Glossary
References
Institute of Internal Auditors. (2024). Global Internal Audit Standards. The Institute of Internal Auditors.
Financial Reporting Council. (2024). UK Corporate Governance Code 2024. Financial Reporting Council.
Fraud Risk Management Guide released by COSO and the ACFE. Association of Certified Fraud Examiners.