Internal audit is an independent assessment, analysis and consulting activity within an enterprise to ensure that the internal control system operates effectively, risks are properly managed and business objectives are achieved as planned. Through internal audit, enterprises can detect errors, fraud or irregularities early in the operation process, thereby improving management efficiency and enhancing decision-making capacity.
Overview of internal audit
To help readers understand important information about internal audit, including concepts, objectives and main tasks, businesses can refer to the summary table below. This table summarizes the basic but essential aspects of internal audit, helping leaders and staff understand the functions, roles and benefits that internal audit brings in improving management efficiency, controlling risks and supporting strategic decision making.
What is internal audit?
Internal auditing is the process of independent evaluation, analysis and advice on an organization's operations. The objective is to ensure that internal control systems operate effectively, that risks are properly managed and that the organization achieves its objectives.
According to IIA international standards, internal auditing includes both consulting and evaluation, aiming to bring added value to the business. This is a tool to help leaders identify strengths and weaknesses, thereby making accurate and quick decisions.
Compared with independent audit, internal audit has a broader scope, covering operations, compliance and risk management, not just stopping at financial reporting.
Objectives of internal audit
Internal audit is not only a tool to control financial information, but also a strategic part that helps businesses operate effectively, reduce risks and make accurate decisions. The objectives of internal audit can be divided into four main groups:
- Ensure accuracy and transparency of financial information: Verify financial reports, books and data, helping leaders make accurate decisions.
- Risk Control: Identify and assess potential risks, propose mitigation measures to protect business assets and resources.
- Improve operational efficiency: Analyze processes, recommend improvements to optimize resources, reduce waste and increase productivity.
- Support strategic decision making: Provide objective information, helping leaders plan long-term and sustainable development.
The tasks of internal audit
The duties of internal audit include:
- Test the effectiveness and compliance of internal control systems.
- Evaluate the accuracy of financial reports and operating data.
- Detect risks and errors, propose solutions.
- Support management in planning and development strategies.
- Ensure business compliance with laws, industry standards and internal policies.
Legal basis related to internal audit
Internal audit activities at enterprises are carried out based on legal regulations and professional standards to ensure transparency, accuracy and compliance. Understanding the legal basis helps enterprises conduct internal audits in accordance with the process, protect rights and enhance management efficiency. Below is a summary of important legal documents related to internal audit:
| Legal documents / Standards | Main content related to internal audit | Benefits for businesses |
| Law on Accounting (amended and supplemented) | Regulations on books, financial reports, accounting obligations and responsibilities of enterprises in controlling financial information. | Ensure internal audits are based on accurate, transparent and legal financial data. |
| Law on Independent Auditing | Regulations on auditing activities, auditing standards, rights and obligations of auditors. | Support businesses in building effective and legally compliant internal control systems. |
| Internal Auditing Standards (IIA – International Standards for the Professional Practice of Internal Auditing) | Provide regulations on professional ethics, auditing techniques, planning and reporting of audit results. | Help internal audit operate professionally, objectively and effectively, while increasing business reputation. |
| Decrees and circulars | Provide details of regulations related to the organization and implementation of internal audit in enterprises. | Support businesses in implementing internal audits in accordance with regulations, reducing legal risks and improving management efficiency. |
The function of internal audit in business
Internal audit performs many important functions, contributing to protecting assets, improving efficiency and creating added value for businesses:
Risk assessment function
The risk assessment function helps businesses identify and evaluate potential risks in financial activities, operations, legal compliance and investment projects. Through the analysis of reports, books and procedures, internal audit identifies weaknesses, gaps and risks that can cause losses, thereby helping businesses proactively plan to prevent and minimize risks.
Control function
The control function focuses on evaluating and monitoring the internal control system, including operating procedures, cost management and asset control. Through internal audit, the enterprise ensures that all processes are performed according to standards, comply with internal policies and laws, and prevent errors, fraud and loss of assets.
Consulting and support functions
In addition to assessment and control, the advisory and support functions of internal audit help businesses improve processes, policies and management systems. Based on risk analysis and operational efficiency, internal audit provides practical recommendations to optimize resources, improve productivity and save costs, creating added value for businesses.
Monitoring function
The monitoring function ensures that internal audit recommendations are fully and effectively implemented. By tracking progress, evaluating results, and reporting directly to management, internal audit helps businesses continuously improve processes, increase operational efficiency, and increase market competitiveness.
Internal audit principles
Internal auditing is a professional activity that requires adherence to basic principles to ensure accuracy, objectivity and efficiency. The main principles include:
Independent and objective
One of the most important principles of internal auditing is independence. Internal auditors must perform their work objectively, without being influenced by the departments or individuals being audited. This helps the audit results to honestly reflect the actual state of the business, increasing the reliability of leaders in making decisions.
Professionalism
Internal audits must be performed by people with professional qualifications, professional skills and understanding of internal audit standards. Professionalism ensures that the assessment, inspection and consulting process is carried out accurately, logically and effectively, bringing real value to the business.
Information security
The principle of confidentiality requires internal auditors to keep sensitive company information confidential. All data, reports and findings during the audit process are only shared with authorized persons, avoiding the risk of information disclosure or misuse.
Comply with international standards
Internal audits must comply with international standards issued by the Institute of Internal Auditors (IIA), including regulations on professional ethics, audit processes and reporting results. Applying international standards helps businesses achieve transparency, increase professional value and enhance reputation in governance.
Internal audit subjects
During the internal audit process, the enterprise needs to clearly identify the audit subjects to ensure a comprehensive and effective assessment scope. These subjects include not only departments and functional units but also related to the processes, systems, projects and assets of the enterprise. Classifying and evaluating each subject helps the internal audit identify weaknesses, effectively manage risks and support leaders in making accurate decisions.
Below is a summary table of internal audit objects, objectives and specific benefits for businesses:
| Internal audit subjects | Audit Content / Objective | Benefits for businesses |
| Departments and divisions | Including finance, human resources, production, marketing, sales. Check work efficiency and process compliance. | Ensure compliance with internal policies, improve work efficiency and reduce risks. |
| Processes and systems | Review operating procedures, management systems, financial controls and information technology. | Detect vulnerabilities, improve processes, optimize operations, and mitigate risks. |
| Projects and activities | Including investment projects, production deployment and specific activities. Evaluate progress, costs, efficiency and risks. | Ensure projects meet objectives, adhere to budgets and improve management efficiency. |
| Assets and resources | Check the management of assets, budget and enterprise resources. | Protect assets, use resources efficiently, support accurate decision making. |
Internal audit process
Internal auditing is a professional activity, carried out according to a systematic process to ensure accurate, objective and effective results. The internal auditing process usually includes the following basic steps:
Audit planning
This phase determines the objectives, scope and evaluation criteria of the audit activity. Internal audit conducts risk analysis, identifies key areas to focus on, schedules and assigns personnel to perform. Detailed planning helps the audit process to be systematic, saving time and resources.
Information gathering
In this step, internal audit collects data, reports, documents and information related to the departments, processes, projects or systems being audited. At the same time, interviews with personnel, on-site observations and records checks help auditors have a complete view of operations and potential risks.
Evaluation and testing
Internal auditing conducts analysis and evaluation of processes, control systems and collected data. The objective is to detect errors, weaknesses or potential risks, and to evaluate the effectiveness and compliance of operations. The results of this step are the basis for making recommendations for improvement and preventive measures.
Audit report
After the assessment, the internal auditor prepares a detailed report, presenting the findings, assessing risks and proposing solutions for improvement. This report is sent to the management and relevant departments, helping them to grasp the actual situation and make timely decisions.
Monitoring and supervision
The final step in the process is to monitor the implementation of audit recommendations. Internal audits evaluate the effectiveness of improvements, ensuring that measures are implemented and delivering the expected results. Monitoring helps businesses achieve continuous improvement, improve operational efficiency and manage risks.
Internal audit tools and methods
To conduct internal audits accurately and effectively, businesses need to use specialized tools and methods synchronously. Applying the right tools and methods not only helps detect risks and errors but also improves operational efficiency, optimizes resources and supports the management in making accurate decisions.
Internal audit tools
To conduct an effective internal audit, businesses need to use specialized tools to collect, analyze and evaluate data accurately. These tools not only help detect errors and fraud but also ensure that operating processes are tightly controlled and transparent. Below are important tools that internal audits often use:
- Accounting reports and documents: Including books, financial reports, contracts, invoices, payment vouchers and related documents. This is the main source of data for internal audit to analyze, compare and evaluate the accuracy and transparency of financial information.
- Auditing and data management software: Digital tools help auditors track and analyze big data, detect errors and fraud, and generate comprehensive reports quickly, transparently, and systematically.
- Checklists and assessment checklists: Help compare actual activities with standard procedures and internal policies. Through this, internal audit can perform checks according to the checklist to ensure that important items are not missed.
- Risk analysis tool: Used to identify critical areas, assess risk levels, and prioritize audits of high-risk areas. This helps optimize audit resources and focus on the most important issues.
Internal audit methods
To conduct internal audits effectively, the application of specialized audit methods is extremely important. These methods help auditors accurately assess, detect errors and risks, and ensure that the audit process is objective, transparent and systematic. Below are the internal audit methods commonly applied in enterprises:
- Method of checking records and documents: Compare and check information from books and actual documents to detect errors, violations or inconsistencies. This is a basic but important method to help internal auditors understand the financial situation and business operations.
- Analysis and evaluation method: Using data, charts, financial indicators to evaluate operational efficiency, identify weaknesses and potential risks. Thereby, internal audit has the basis to make recommendations to improve processes and enhance management efficiency.
- Observation and interview method: Monitor actual processes, directly communicate with personnel to understand actual operations and verify information. This method helps internal audit detect problems that are not shown on paper documents.
- Risk-Based Audit: Focuses audits on high-risk areas, helping to use resources effectively, detect key issues and protect businesses from potential risks.
- Periodic and ad hoc audits: Periodic audits provide continuous assessment of performance, while ad hoc audits are conducted when there are suspected errors or specific risks, ensuring that internal audit is proactive in detecting and addressing significant issues.
Internal audit services at MAN – Master Accountant Network
In each enterprise, implementing internal audit not only helps monitor and evaluate activities but also improves management efficiency, optimizes processes and minimizes risks. MAN – Master Accountant Network provides comprehensive internal audit services, focusing on risk assessment, process control, improvement consulting and monitoring results. The table below summarizes the main services, objectives and specific benefits that enterprises receive when using MAN's internal audit services:
| Internal audit services at MAN | Content / Objective | Benefits for businesses |
| Comprehensive risk assessment | Identify and assess financial, operational, project and compliance risks. | Help businesses proactively prevent risks, protect assets and minimize losses. |
| Process control and optimization | Review internal control systems, evaluate the effectiveness of operating procedures, cost management and resource utilization. | Ensure regulatory compliance, reduce errors, improve management efficiency and optimize resources. |
| Consulting and operational improvement | Provide recommendations for improvement of processes, policies and management systems based on risk analysis and operational efficiency. | Optimize resources, improve productivity, save costs and create added value for businesses. |
| Monitor and track results | Monitor progress of audit recommendations, evaluate improvement effectiveness and report directly to management. | Continuous improvement, enhancing competitiveness and ensuring measures are implemented effectively. |
Benefits of using MAN internal audit – Master Accountant Network
Using internal audit at MAN – Master Accountant Network brings many practical benefits to businesses, helping to improve management efficiency, protect assets and develop sustainably.
Detect and mitigate risks
MAN’s internal audit services help businesses identify potential risks in financial, operational, project and legal compliance activities. As a result, businesses can proactively prevent, minimize risks and avoid unwanted losses.
Optimizing processes and resources
Internal audit at MAN evaluates the company's control systems, operating procedures and resource use. Recommendations for improvement help the company optimize operations, increase efficiency, save costs and ensure resources are used efficiently.
Support accurate decision making
Through detailed and objective audit reports, internal audit provides transparent information, helping management make timely and correct strategic decisions and minimize risks in corporate governance.
Enhance corporate reputation and transparency
Applying professional internal audit services from MAN helps businesses ensure transparency and compliance with accounting standards and laws. This enhances credibility with partners, customers and management agencies, while increasing trust in the internal management system.
Continuous improvement and competitiveness enhancement
With the process of monitoring and tracking results, internal audit at MAN helps businesses continuously improve processes, enhance operational efficiency and increase competitiveness in the market.
Conclude
Internal audit is an important tool to help businesses evaluate, monitor and improve operational efficiency. Through risk detection, process control and improvement consulting, internal audit provides transparent and accurate information for leaders to make timely and effective decisions. The application of internal audit not only protects assets but also creates added value, enhances management capacity and helps businesses develop sustainably.
Let MAN – Master Accountant Network accompany your business in auditing services. With a team of experienced experts, MAN helps businesses strengthen risk control, optimize processes, ensure financial transparency and fully meet legal requirements. MAN's auditing services are designed to be flexible, standardized and effective, suitable for all business sizes. Contact MAN today for advice and implementation of the most optimal auditing solutions.
Service contact information at MAN – Master Accountant Network
- Address: No. 19A, Street 43, Tan Thuan Ward, Ho Chi Minh City
- Mobile/Zalo: 0903 963 163 – 0903 428 622
- Email: man@man.net.vn
Content production by: Mr. Le Hoang Tuyen – Founder & CEO MAN – Master Accountant Network, Vietnamese CPA Auditor with over 30 years of experience in Accounting, Auditing and Financial Consulting.
