The list of auditing firms is a collection of entities licensed by the Ministry of Finance to provide services such as financial statement certification, tax consulting, and risk management. Independent Auditing Law 2011This service is mandatory for foreign direct investment (FDI) enterprises, listed companies, and credit institutions.
When making a selection, managers should prioritize firms with CPA certification, practical experience, and the ability to explain their operations to tax authorities. Businesses often require annual audits to meet bank loan requirements and ensure transparency.
The importance of auditing for businesses.

Auditing It's not simply a year-end administrative procedure, but a strategic risk management tool. For CFOs and Chief Accountants, choosing the right audit firm is key to protecting financial reputation and optimizing tax costs.
- What is auditing and why is it necessary? From the perspective of MAN – Master Accountant Network, independent auditing is the process of gathering and evaluating evidence about financial information to confirm the accuracy of reports. Without auditing, businesses risk misrepresenting data, leading to incorrect accounting entries that may result in tax authorities pursuing back taxes during tax settlement periods.
- Role in tax risk management: Experts at MAN, with 30 years of experience, note that auditors not only play a control role but also act as consultants, helping businesses identify loopholes in their accounting processes. A clean audit report minimizes scrutiny from tax authorities while strengthening the confidence of partners and investors.
Classification of auditing firms in Vietnam

To make it easier for the service procurement department to evaluate, we can divide the auditing market into three main groups based on capabilities and client orientation.
| Unit group | Main features | Suitable candidates | Analysis from MAN |
| Big 4 (Deloitte, PwC, EY, KPMG) | Global network, extremely rigorous process. | Multinational corporation, listed company | Highest reputation but high service fees and requires standardized data. |
| Mid-range international networks (Grant Thornton, Mazars, RSM) | Combining international standards with local flexibility. | Medium-sized enterprises, medium-sized FDI companies | Choose a balance between cost and quality of expert services. |
| Domestic auditing firms (AASC, A&C, AFC, MAN) | In-depth understanding of Vietnamese tax law, cost optimization. | Private enterprises, SMEs, ODA projects | Outstanding efficiency in explaining tax returns at the local level. |
Criteria for selecting strategic audit partners

The selection auditing unit You shouldn't rely solely on service fees. Experts at MAN – Master Accountant Network suggest a four-step process for evaluating a professional's competence. auditing firm before signing the contract.
- Personnel competency and professional certification checks: Inquire about the number of auditors holding Vietnamese and international CPA certifications (ACCA, CPA Australia). A company with a stable workforce will ensure data consistency across audit periods. Avoid frequent personnel changes that disrupt work and compromise the continuity of audit records.
- Experience in a specific industry: Auditing in the electronics manufacturing industry is completely different from that in the construction or service industries. Businesses need to question the auditor's practical experience in relation to the scale and specifics of their industry. Solutions from MAN – Master Accountant Network show that a thorough understanding of the auditor's operational processes helps businesses uncover hidden errors in inventory and cost of goods sold.
- Application of technology in auditing: Ask about how they store and secure data. Modern organizations often use specialized auditing software to minimize human error. The application of technology in auditing is essential to ensure the timeliness and accuracy of financial reporting in the digital age.
Legal regulations and deadlines to note
Businesses need to understand this. Decree 17/2012/ND-CP and guiding documents for the Law on Independent Auditing to determine the subjects required to be audited.
- Foreign direct investment (FDI) enterprises.
- Credit institutions, insurance companies, securities trading companies.
- Companies listed on the stock market.
- State-owned enterprises and organizations as prescribed by law.
According to experts at MAN, delays in completing audit reports not only lead to administrative penalties but also lower a company's credit score in the eyes of financial partners. This is a risk that many SMEs often overlook.
Common risks encountered when conducting audits.
Many businesses face difficulties not due to financial capacity, but because their documentation preparation does not meet the required standards.
- Lack of verification and confirmation from a third party (customer, supplier) prior to the audit.
- Inadequate retention of original documents for internal transactions.
- The difference between accounting and tax recognition that the business cannot explain itself.
From the perspective of MAN – Master Accountant Network, preparing a clean set of documents before an audit is a crucial step. This thorough preparation helps businesses minimize unnecessary adjusting entries and shorten the audit process.
Case Study: Lessons from a Financial Crisis at a Manufacturing Company
A client of MAN – Master Accountant Network in the electronics manufacturing sector ran into major trouble in 2024. They used an inexperienced auditing firm that failed to properly assess obsolete inventory and improperly recorded accrual expense entries.
As a result, the audit report received a qualified opinion, leading the bank to refuse to disburse the working capital loan. After receiving support from experts at MAN to review the financial system and conduct a re-audit using standard procedures, the company rectified the situation and regained its financial credibility.
The lesson learned from MAN: An auditing firm is not just a checker; it must be a capable partner to protect your reputation with stakeholders.
Expert insights on audit optimization.
At MAN – Master Accountant Network, we observe that the most successful businesses are those that do not view auditing as a mandatory year-end procedure. Instead, they see auditing as a channel to assess their tax risk management system.
Auditors are only responsible for verifying figures, while the responsibility for optimizing tax costs and protecting the company's interests rests with the management. Close coordination between the internal accounting department and the auditing firm is key to minimizing unwanted tax arrears. Experience from MAN shows that proactive pre-audit review helps businesses save 15-20% on tax adjustment costs.
Conclude
Choosing a reputable audit partner is a strategic investment in the transparency and sustainability of your business. A high-quality audit report not only helps your business comply with the law but also serves as strong evidence of your financial capacity to partners and clients.
If your business is seeking optimal auditing solutions or requires in-depth advice on financial risk management, MAN – Master Accountant Network is ready to assist you. With a team of experts boasting over 30 years of experience, we are committed to providing complete peace of mind and helping your business optimize its tax and financial systems most effectively. Let MAN – Master Accountant Network be the solid foundation for your growth.
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
- E-mail: man@man.net.vn
- Google Business Profile: View MAN – Master Accountant Network's Google Business Profile
- LinkedIn Founder: View expert Le Hoang Tuyen's LinkedIn profile.
Responsible for production and professional content review by: Mr. Le Hoang Tuyen – Founder & CEO of MAN – Master Accountant Network, CPA Vietnam with over 30 years of experience in accounting, auditing, taxation, and corporate financial consulting.
Frequently Asked Questions about the List of Auditing Firms
When is an audit required for a business?
According to regulations, FDI enterprises, listed companies, credit institutions, and large-scale enterprises as defined by the Ministry of Finance must have their financial statements audited annually.
What factors determine audit costs?
Costs are typically based on asset size, revenue, number of transactions, and industry complexity. Additionally, the reputation of the auditing firm is a determining factor.
Is it possible to change the auditing firm mid-term?
Yes, but a valid reason is needed, and compliance with regulations regarding document transfer is essential to avoid disruptions in the submission of financial reports.
Are auditing and tax accounting the same thing?
No. Tax accounting focuses on compliance with tax laws, while independent auditing focuses on the accuracy and fairness of financial statements based on accounting standards.








