Vietnam continues to solidify its position as one of the most attractive investment destinations in Southeast Asia, thanks to its stable political environment, competitive operating costs, and an increasingly comprehensive network of free trade agreements. However, alongside its growth potential, foreign-invested enterprises (FDIs) operating in Vietnam must also navigate a legal framework for taxation and accounting that is distinct compared to international standards and frequently updated.
In this context, a proper understanding of, and full compliance with tax and accounting obligations in Vietnam is not only a legal requirement, but also a critical factor in enabling FDIs to operate efficiently, optimize costs, and mitigate risks related to audits, penalties, or operational disruptions. In practice, many mistakes made by foreign investors stem not from intentional non-compliance, but from a lack of comprehensive awareness of the Evolving regulatory framework and mandatory compliance timelines.
This article offers a comprehensive and systematic overview of the core tax and accounting obligations that FDIs must fulfill throughout their lifecycle in Vietnam – from establishment and operation to expansion, restructuring, or withdrawal. It aims to help foreign investors proactively and lawfully plan their compliance strategy, reduce risks, and build sustainable operations in the Vietnamese market.
1. Overview of the Tax and Accounting system applicable to FDI enterprises in Vietnam
To comply with tax and accounting obligations imposed by law, individuals in charge of tax and accounting within a business must clearly understand Vietnam’s applicable regulations. These include: the Law on Auditing, the Law on Accounting, the Law on Tax Administration, the Law on Corporate Income Tax (CIT), the Law on Value-Added Tax (VAT), the Law on Personal Income Tax, the Law on Customs (for import and export activities), as well as Vietnamese Accounting Standards and relevant guiding documents. However, while these are the formal legal texts, actual implementation often depends on guidance provided by tax authorities in specific cases. As tax policies are frequently revised to keep pace with evolving economic relationships, it is essential for enterprises to stay updated to avoid any violations.
For enterprises engaged in cross-border transactions, special attention must be paid to Double Taxation Avoidance Agreements, the Law on Foreign Contractor Tax, the Customs Law, the Law on Import and Export Duties, and their related guidance to ensure proper declarations and compliance.
2. Value-Added Tax (VAT) – Choosing the Appropriate Method of Tax Declaration
According to Article 10 of the Law on VAT No. 48/2024/QH15, there are two methods of VAT declaration: the deduction method and the direct calculation method.
A fundamental issue that FDI enterprises must understand when operating in Vietnam is the method of VAT calculation—especially the deduction method, which is commonly applied and mandatory for medium to large-sized businesses. Under Article 11 of the same law, the deduction method applies to businesses that maintain proper accounting records, invoices, and supporting documents as required by law. According to this method, the VAT payable is calculated as the difference between output VAT and deductible input VAT. Output VAT is the total VAT stated on sales invoices and is calculated by multiplying the taxable price by the VAT rate. If the invoice shows a tax-inclusive price, the output VAT is determined using the exclusion formula provided in point (k), clause 1, Article 7 of the law.
On the other hand, deductible input VAT includes all VAT shown on invoices for purchases of goods and services, or on documents showing VAT paid for imported goods or services purchased from foreign suppliers—provided these documents meet the conditions stipulated in Article 14 of the law. Entities subject to the deduction method include: (i) Enterprises with annual revenue from the sale of goods and services of VND 1 billion or more (excluding household or individual businesses); (ii) Business establishments that voluntarily register to apply the deduction method; and (iii) Foreign organizations and individuals supplying goods or services related to petroleum operations, where VAT is declared, credited, and paid on their behalf by the Vietnamese party.
Mastering and properly applying the deduction method is crucial to optimizing tax obligations and avoiding mistakes such as incorrect deductions, missing input documents, or back taxes and penalties due to misapplication of tax calculation methods.
3. Corporate Income Tax (CIT) in Vietnam
Corporate Income Tax (CIT) is a major component of Vietnam’s tax system and has a direct impact on the long-term financial strategies of FDI enterprises. Currently, the standard CIT rate is 22%, which applies to most businesses, including foreign-invested enterprises.
However, Vietnam’s CIT regime is tiered to reflect differences among industries. Specifically, enterprises with annual revenue under VND 20 billion (based on the previous year) may continue to enjoy a reduced rate of 20%, whereas certain sectors—such as oil and gas exploration and exploitation, and mining of rare resources—are subject to higher rates ranging from 32% to 50%, depending on geological conditions, reserves, and the location of the activity, as determined by the Prime Minister.
CIT is not only calculated based on the traditional formula (taxable income multiplied by the applicable rate), but may also be levied on a percentage of revenue in specific cases—particularly for foreign enterprises without a permanent establishment or cost-accounting presence in Vietnam (e.g., 5% for services, 10% for royalties, 2% for transport and construction, 0.1% for securities transfers). This requires accurate classification and calculation of cross-border income to avoid misapplication of tax rates.
Furthermore, tax payment location is a crucial compliance point. If an enterprise has dependent production units in other provinces, its CIT must be allocated based on expenses incurred in each locality rather than paid entirely at the head office. This has significant implications for designing inter-provincial operational structures, requiring transparent cost tracking and justifiable tax allocation.
With its multi-layered approach—based on taxable income, industry sector, and geographical presence—Vietnam’s CIT system serves not only as a fiscal policy tool but also presents strategic compliance challenges. Errors in determining taxable income, applying incorrect rates, or misallocating taxes among locations can lead to serious consequences, including tax arrears, penalties, or disqualification from tax incentives in subsequent fiscal years.
4. Accounting Regime Registration
After obtaining the Enterprise Registration Certificate in Vietnam, one of the mandatory next steps for FDI enterprises is to register the applicable accounting regime, the form of accounting books, the method of inventory valuation, and the type of invoices to be used. This is not only a legal requirement under current accounting and tax laws, but also a foundational step toward building a transparent, consistent internal financial control system that aligns with the enterprise’s business model.
Choosing the applicable accounting regime: Circular 133/2016/TT-BTC vs. Circular 200/2014/TT-BTC.
According to regulations issued by the Ministry of Finance, enterprises in Vietnam are allowed to choose between two major accounting regimes based on their scale and management needs:
- Circular 133/2016/TT-BTC: Applies to small and medium-sized enterprises (SMEs), with a simpler account structure and more concise financial reports. This is suitable for FDIs with limited scale or in the initial stages of operation.
- Circular 200/2014/TT-BTC: Applies broadly to all types and sizes of enterprises, offering a more comprehensive and flexible chart of accounts. It is better suited for medium to large-scale FDIs or those with internal reporting needs aligned with international standards.
The accounting regime must be registered before any economic transaction occurs, and changes are only allowed in special cases, with explanatory reports submitted to the tax authority.
5. Accounting Book Format – Flexible Selection with Mandatory Consistency
According to both circulars, enterprises are only allowed to apply one accounting book format per fiscal year. The selected format must reflect the actual business operations of the company and ensure transparency and auditability.
- Circular 133/2016/TT-BTC offers three formats: General Journal, Journal–Ledger, Voucher Journal;
- Circular 200/2014/TT-BTC adds a fourth format: Journal Voucher
Enterprises must register the chosen format with the tax authority and maintain consistency throughout the fiscal year.
6. E-Invoice Registration and Usage
According to the 2019 Law on Tax Administration and related guidance documents, all enterprises operating in Vietnam are required to use electronic invoices, except for a few special cases with specific regulations. FDI enterprises are required to:
- Select an e-invoice service provider certified by the Ministry of Finance;
- Register their invoice templates, invoice codes, and start date of use with the tax authority via the electronic portal;
- Issue invoices fully and in a timely manner, consistent with the timing of revenue recognition and tax obligations.
E-invoice management must be synchronized with the accounting software and internal control procedures to prevent risks such as misstatement of revenue, discrepancies in tax declarations, or administrative penalties.
Compliance: Not just a duty, but a safe investment strategy, strict and proper compliance with tax and accounting regulations in Vietnam is not only a mandatory legal obligation for all FDI enterprises, but also a critical component of risk management and sustainable growth strategies. Vietnam’s tax and accounting legal framework is becoming increasingly complete and integrated with international practices, yet it requires investors to be proactive, transparent, and disciplined in fulfilling their reporting, declaration, bookkeeping, and data retention obligations.
In reality, even unintentional or minor violations in tax and accounting can lead to serious consequences: tax arrears, administrative fines, loss of investment incentives, suspension of operations, business license revocation, or even criminal prosecution in severe cases. Beyond financial losses, compliance breaches can also damage a company’s reputation, hinder fundraising efforts, strain business partnerships, and delay expansion plans in the Vietnamese market.
Our advice to foreign investors: Establish a robust tax and accounting compliance system from the outset. Work closely with professional advisors and local legal counsel, conduct regular compliance health checks, and build a finance–accounting team that understands both Vietnamese law and international governance standards. This is not only a safeguard against legal risk but also a lever for trust-building, effective management, and unlocking the full potential of your investment in Vietnam.
Time of writing: 16/05/2025
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