Financial transparency is becoming a vital element for all businesses as the global economy faces numerous uncertainties and a technological boom. In this context, the International Auditing Standards (ISA) system is not only a set of professional rules but also a measure of investor confidence. This article will provide an in-depth analysis of the ISA system, key updates for 2025, and Vietnam's integration roadmap.
Overview of the International Auditing Standards (ISA)
International Standards on Auditing (ISA) are understood as a system of principles, regulations, and professional guidelines that auditors must follow when conducting audits of financial statements. The core objective of each international auditing standard is to enhance user confidence in financial statements by providing an objective opinion from independent auditors.
Currently, international auditing standards serve as a common language in the global financial world. The consistent application of international auditing standards ensures that corporate financial statements are widely understood and recognized in many countries, thereby effectively promoting cross-border investment flows. This system of international auditing standards is issued and managed by the International Auditing and Assurance Standards Board (IAASB). Although countries often have their own legal systems, most use international auditing standards as a core foundation to develop or internalize national standards that are appropriate to their local context.
The process of formation and development of the international auditing standards system.
The history of international auditing standards is closely linked to ongoing efforts to protect public interests and maintain the stability of global capital markets.
The development of international auditing standards originated from the urgent need following devastating financial failures such as Enron and WorldCom. These events exposed loopholes in governance and control, forcing professionals to establish stricter and more consistent international auditing standards globally.
One notable milestone is the Clarity Project. This was a comprehensive restructuring effort by the IAASB aimed at making international auditing standards more transparent, understandable, and applicable. Thanks to this project, each current international auditing standard has a clear structure including: Objectives, Requirements, and Specific Application Guidance.
Entering its current phase, international auditing standards are undergoing another revolution as they integrate elements of digital technology and sustainable development reporting (ESG). Experts developing modern international auditing standards are no longer simply examining past figures but are also aiming to ensure sustainable development and social responsibility in the future through a new framework of international auditing standards.
Key updates to the 2025 International Auditing Standards.
2025 marks a significant transformation for the IAASB with landmark revisions to its international auditing standards aimed at meeting the growing expectations of the market. Below is a summary of the most significant changes to the standards that professionals should be aware of:
| Standard name | Key updates to the international auditing standards system. | Expected effective date |
|---|---|---|
| ISA 240 (Revision) | Enhancing accountability for fraud detection based on international auditing standards. | The accounting period begins on December 15, 2026. |
| ISA 570 (Revision) | Improve the ongoing operational risk assessment process in accordance with international auditing standards. | Applicable to the settlement periods of 2025 – 2026 |
| ISSA 5000 | International auditing standards on ensuring sustainable development reporting (ESG) | Issued in late 2024, effective from 2025 |
Note that although some versions of international auditing standards are issued or amended during the 2024-2025 period, the actual effective date is often delayed. This is to allow auditing firms and businesses time to prepare their data systems and train personnel to meet the new requirements of international auditing standards.
In addition to specific regulations, the International Auditing Standards Board also pays special attention to the trends in technology application. Currently, the IAASB has not issued a separate international auditing standard for artificial intelligence (AI), but has released expanded guidance. This provides a legal framework for auditors to apply international auditing standards when using AI and Big Data in analysis on large datasets or entire datasets where feasible.
The Vietnamese Auditing Standards System (VSA) and its relationship with international standards.
In Vietnam, the current Vietnam Auditing Standards (VSA) system comprises 47 standards issued under Circular 214/2012/TT-BTC of the Ministry of Finance. These standards have essentially been translated and directly adapted from the international auditing standards system to suit the specific characteristics of the domestic economy.
The relationship between VSA and international auditing standards can be viewed through the following aspects:
- Structural similarity: VSA closely adheres to the structure and core professional ethical principles of the International Auditing Standards (ISA).
- National specificity: Some terminology and documentation requirements in Vietnam are more detailed based on international auditing standards to facilitate inspections by state management agencies.
- Integration Roadmap 2025-2030: The Ministry of Finance has set the goal of updating the VSA system to closely align its content and structure with the latest versions of international auditing standards. This will help Vietnamese businesses' financial statements gain wider acceptance from international financial institutions due to their similarity to international auditing standards.
Why is auditing standard 400 no longer in use?
One common question among those studying international auditing standards is the absence of Standard 400. In its older versions, International Auditing Standard ISA 400 covered risk assessment and internal controls.
This change in the international auditing standards system occurred for the following professional reasons:
- Content integration and detail: The requirements of the old International Auditing Standard 400 have been broken down and incorporated into more specialized standards.
- Replaced by VSA 315 and VSA 330: Currently, the risk assessment process according to international auditing standards is carried out based on VSA 315 and VSA 330.
Understanding this substitution correctly within the framework of international auditing standards helps professionals avoid referencing errors in audit reports, ensuring accuracy in accordance with current legal regulations.
List of common international auditing standards groups
The international auditing standards system is vast, so the IAASB has classified them into numbered groups for ease of reference. The structure of the international auditing standards groups includes:
- Group 200 – 299: General principles and responsibilities in international auditing standards.
- Group 300 – 499: Risk assessment and mitigation measures according to international auditing standards.
- Group 500 – 599: Audit evidence as prescribed by international auditing standards.
- Group 600 – 699: Utilizing the work of other parties within the framework of international auditing standards.
- Group 700 – 799: Conclusions and reports based on international auditing standards.
Benefits of businesses complying with international auditing standards.
Conducting audits according to international auditing standards brings significant strategic value to corporate governance:
- Enhancing international credibility: Financial statements audited according to international auditing standards are a crucial basis for businesses to access loans from international financial institutions.
- Optimizing risk management: Through rigorous audit processes based on international auditing standards, gaps in internal controls will be identified in a timely manner.
- Attracting investment: Investors often prioritize businesses that adopt international auditing standards to ensure global transparency of financial information.
Guide to accessing and searching international auditing standards documents.
To ensure accuracy, individuals and organizations should consult international auditing standards from reputable sources:
- International source: Access the official IAASB website to consult the ISA Handbook 2025 international auditing standards.
- Domestic sources: Consult the consolidated text of international auditing standards on the website of the Ministry of Finance or VACPA.
- In-depth training: International certification training programs are always updated with the latest international auditing standards to teach senior professionals.
Conclusion on the future of the auditing profession in the digital age.
The international auditing standards system is moving into a new phase where non-financial and technological risks will reshape financial confidence. For businesses, understanding and effectively collaborating with auditors according to international auditing standards is no longer an option but a mandatory requirement for successful integration.
The period of 2025-2026 will be a crucial time for businesses to adjust their systems to meet the stringent requirements of the latest international auditing standards. Proactively updating these changes will transform compliance with international auditing standards into a sustainable competitive advantage in the global market.
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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.
