VAS stands for Vietnam Accounting Standards, the local accounting framework used by companies registered in Vietnam.
For foreign businesses, VAS is important because it connects statutory bookkeeping, tax filing, audit preparation, and supporting document management.
Understanding VAS is not only about accounting rules. It is about understanding how Vietnam’s accounting, tax, and compliance practices work together in daily business operations.
1. What is VAS?
VAS, or Vietnam Accounting Standards, is the official accounting framework applied by companies operating in Vietnam.
It is commonly used for local bookkeeping, statutory financial statements, tax reporting, and annual audit procedures.
In Vietnam, accounting is not only about recording transactions. Finance teams also need to consider tax deductibility, VAT treatment, invoice validity, and supporting documents.
2. Why VAS matters for foreign businesses
Many foreign investors and multinational companies enter Vietnam with experience in IFRS, US GAAP, or other international reporting frameworks.
However, Vietnam’s local accounting practice often follows a more compliance-driven approach.
| Area | Why it matters in Vietnam |
|---|---|
| Bookkeeping | Local accounting books are generally prepared under VAS for statutory and audit purposes. |
| Tax filing | Accounting records are closely connected to VAT, CIT, and other tax declarations. |
| Invoices | Valid invoices and supporting documents are critical for tax deductibility and VAT credit. |
| Audit | Annual audit procedures usually rely heavily on local accounting records and supporting evidence. |
3. Common challenges in practice
Foreign businesses often face practical challenges when local VAS books do not fully match group reporting numbers.
This does not always mean the local accounting is wrong. In many cases, it reflects a difference in reporting purpose and accounting basis.
✔ Revenue recognition timing
✔ Lease accounting treatment
✔ Depreciation method and useful life
✔ Provision recognition
✔ Foreign exchange revaluation
✔ Supporting document requirements
✔ Differences between local books and group reporting packages
4. How to understand VAS more easily
The easiest way to understand VAS in practice is to look at three questions.
| Question | Practical meaning |
|---|---|
| Can it be recorded? | Is the transaction valid for accounting entry based on the contract, invoice, amount, and accounting period? |
| Can it be deducted? | Is the expense deductible for corporate income tax or eligible for VAT credit? |
| Can it be defended? | Can the company explain the transaction with proper supporting documents during audit or tax review? |
5. Final thoughts
VAS is the starting point of financial management in Vietnam.
For foreign businesses, understanding VAS helps reduce reporting confusion, improve month-end closing quality, and communicate more effectively with local accountants, auditors, and tax advisors.
A practical understanding of VAS also helps companies manage differences between local statutory accounts and international group reporting.
Next in this series: Part 2 will cover “VAS vs IFRS: Why Financial Numbers in Vietnam Often Look Different.” We will compare the key differences between Vietnam’s local accounting standards and international reporting frameworks.
VN BizLab Insight
This article is based on practical business experience in Vietnam and publicly available regulatory information. Accounting and tax treatment may vary depending on company structure, industry, transaction type, and timing. Before applying this content to actual business decisions, please review the latest regulations and consult qualified professionals.