Supporting Documents in Vietnamese Accounting Standards: Ensuring Tax Compliance and Financial Integrity


In Vietnam, like in most countries, accurate and transparent financial reporting is of paramount importance for businesses and organizations. The Vietnamese Accounting Standards (VAS) play a crucial role in establishing a standardized framework for accounting practices. One of the key aspects of VAS is the requirement for supporting documents, which serve as the foundation for reliable financial statements. This article explores the significance of supporting documents in VAS and why they are vital for ensuring tax compliance.

Understanding Supporting Documents in VAS

Supporting documents in VAS refer to the records and evidence that substantiate the financial transactions and activities of a business entity. These documents form the basis for journal entries and financial statements and include invoices, receipts, contracts, bank statements, vouchers, and other relevant paperwork. VAS sets out specific guidelines on the types of supporting documents required and the timeframes for their retention.

Importance of Supporting Documents for Tax Compliance

  1. Evidentiary Value: Supporting documents provide concrete evidence of the financial transactions carried out by a business. This evidence is crucial during tax audits or any other scrutiny by tax authorities. The accuracy and completeness of supporting documents help in proving the legitimacy of reported revenues, expenses, and deductions.
  2. Compliance with Tax Regulations: Vietnamese tax laws require businesses to maintain proper books of accounts and supporting documents to calculate taxable income accurately. By adhering to VAS requirements, companies can demonstrate their compliance with tax regulations and minimize the risk of penalties or fines.
  3. Risk Mitigation: Inadequate or missing supporting documents can lead to inconsistencies in financial reporting and raise suspicions about the accuracy of a company’s records. This may trigger audits and investigations, leading to potential tax liabilities, penalties, and reputational damage. Proper maintenance of supporting documents reduces such risks and fosters trust among stakeholders, including tax authorities.
  4. Facilitating Tax Audits: In case of a tax audit, well-organized and complete supporting documents expedite the process. Tax authorities can verify the accuracy of reported figures efficiently, leading to a smoother and quicker audit. This also helps in building a cooperative relationship between the taxpayer and the tax authorities.
  5. Accurate Tax Deductions: For tax compliance, businesses often claim various deductions, exemptions, and credits. These claims must be substantiated by appropriate supporting documents. The absence of proper documentation could lead to disallowed deductions and increased tax liabilities.
  6. Enhancing Business Reputation: Maintaining transparent financial records and complying with VAS not only ensures tax compliance but also enhances the reputation of the business. Ethical financial practices inspire confidence among investors, customers, and partners, leading to better business opportunities and growth prospects.


In conclusion, supporting documents hold significant importance in Vietnamese Accounting Standards as they serve as the backbone of reliable financial reporting. These documents provide tangible evidence of financial transactions, ensuring tax compliance, and mitigating risks associated with tax audits. Adhering to VAS requirements for supporting documents is not only a legal obligation but also a responsible business practice that fosters transparency and credibility. As businesses continue to evolve in Vietnam’s dynamic economic landscape, the proper maintenance of supporting documents remains a fundamental aspect of achieving financial integrity and complying with tax regulations.

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