The recent proposal by Vietnam’s Ministry of Finance to amend tax regulations governing related-party transactions represents a milestone in Southeast Asian tax policy and reflects global trends. This initiative should not be interpreted as an isolated administrative change, but rather as a technical response to the challenges of base erosion and profit shifting (BEPS), focusing the debate on three fundamental pillars: rigor in supporting documentation, the economic substance of the functions performed, and transparency in the selection of valuation methodologies.
The core of the proposal: transparency and alignment with the OECD
Vietnam seeks to close the loopholes that allowed multinational groups to optimize their tax burden through the manipulation of intra-group prices. The technical sticking point of this new regulation lies in the requirement for a robust functional analysis that precisely identifies:
- Economically significant functions within the local supply chain.
- The tangible and intangible assets used in generating income.
- The actual allocation of risks among related entities.
From a strictly technical perspective, the Vietnamese tax administration proposes that the choice of Transfer Pricing method should not be a matter of taxpayer discretion. As in European and Latin American jurisdictions, priority will be given to the method that best reflects the economic reality of the transaction, requiring comprehensive justification when opting for methods based on net margins (such as the TNMM) rather than Comparable Uncontrolled Price (CUP) methods.
Economic substance: the challenge of “low-risk” entities
One of the most critical aspects of the reform is the scrutiny of entity characterization. Vietnam has observed a trend in which local subsidiaries define themselves as “low-risk service providers” or “maquiladoras” to justify minimal profit margins.
However, the new guidelines suggest that if the local entity de facto assumes market, inventory, or credit risks, or if it contributes to the development of local intangibles, the reported margin must be proportional to such exposure. This recharacterization by the tax authority constitutes one of the greatest risks for multinational groups, as it may result in significant tax adjustments based on economic reality rather than contractual legal form.
Comparability and Burden of Proof: Standards for Technical Defense
The Vietnamese proposal also raises the standard for comparability. In emerging markets, the lack of local financial data is often an obstacle. However, the new regulations emphasize that the analysis of comparables cannot be reduced to a mechanical selection of industry codes. The expected standard requires consistency:
- Market adjustments: Recognize differences in operating costs and regional economic conditions.
- Methodological consistency: Explicitly explain why certain comparables are disregarded and how technical reports are weighted.
Regarding the burden of proof, the reform reinforces the idea that Transfer Pricing documentation is not merely a matter of formal compliance, but a decisive evidentiary tool. Insufficient or inconsistent documentation empowers the tax authority to determine the tax base using presumptive methods, shifting the complex task of challenging such adjustments to the taxpayer in administrative or judicial proceedings.
Implications for Groups Operating in Emerging Markets
This development in Vietnam serves as a reminder to groups operating across multiple jurisdictions: targeted tax audits are no longer exclusive to more developed economies. Tax authorities in emerging markets are rapidly adopting OECD guidelines and technological monitoring tools.
The practical lesson is clear: consistency between functional analysis, intra-group contractual policy, and observed financial results must be verifiable and defensible. Any inconsistency among these elements increases the likelihood of audits and international double taxation.
Methodological Consistency as a Mitigation Strategy
At TPC Group, we understand that, in the realm of Transfer Pricing, the true robustness of an intra-group policy is put to the test under the technical scrutiny of an audit. The correct selection of the method and a well-structured evidentiary strategy are key factors in ensuring the tax stability of a global organization.
Having specialized advisory services is not only about complying with local regulations but also a strategic risk management measure. We support our clients in structuring and defending their Transfer Pricing policies, integrating a solid legal perspective with cutting-edge economic analysis to successfully navigate today’s complex tax environment.
Source: Vietnam.VN