For multinational enterprises operating in Vietnam, the regulatory landscape has never been more challenging. As the General Department of Taxation (GDT) continues to modernize its approach, Transfer Pricing (TP) audits have transitioned from occasional inquiries to systematic, data-driven investigations. For many businesses, a TP audit is not a matter of "if," but "when."
Despite the high stakes: including significant back taxes, interest on late payments, and heavy penalties: many companies continue to fall into the same avoidable traps. A failed audit can disrupt your operations, damage your corporate reputation, and lead to years of litigation.
At BLaw Vietnam, we have observed that most audit failures stem not from a lack of intent to comply, but from structural weaknesses in documentation and a failure to align legal form with economic substance. Below, we outline the 10 most common reasons your transfer pricing audit might fail and, more importantly, the actionable steps you can take to fix them right now.
1. Missing or Inadequate Contemporaneous Documentation
The most common reason for audit failure is the simple lack of robust, contemporaneous documentation. Under Decree 132/2020/ND-CP, businesses are required to have their TP documentation ready before the time of the annual tax return filing. Waiting until an audit notice arrives to "reconstruct" your files is a recipe for disaster.
The Fix: You must ensure that your Master File, Local File, and Country-by-Country (CbC) reports are prepared annually and reflect the specific fiscal year's transactions. If you haven't reviewed your tax category compliance recently, now is the time to verify that all statutory files are complete and accessible.
2. Relying on "Generic" Global Templates
Many multinational headquarters provide their local subsidiaries with a "Global Master File" and expect it to satisfy local requirements. However, Vietnamese tax authorities are increasingly skeptical of generic reports that do not address the specific economic realities of the Vietnamese market. If your documentation reads like a copy-paste from another jurisdiction, it will be flagged for further scrutiny.
The Fix: Localize your documentation. Ensure your functional analysis accurately reflects the activities performed by the Vietnamese entity. Highlight local market conditions, specific local risks, and how those factors influence your pricing. You can learn more about local requirements through our legal blog.
3. Inconsistent or Unexplained Profit Margins
A sudden fluctuation in profit margins is one of the biggest "red flags" for the GDT. If your company’s profit margin drops significantly without a clear, documented business reason: or if it consistently sits at the very bottom of the arm's length range: auditors will assume profit shifting is occurring.
The Fix: Monitor your financial results quarterly. If margins deviate from the industry benchmark, document the reasons immediately. Was it due to a market expansion phase? An increase in raw material costs? Documenting these "extraordinary factors" in real-time is much more persuasive than trying to explain them three years later during an audit.
4. Persistent Losses in the Vietnamese Subsidiary
Tax authorities operate on the logic that an independent enterprise would not continue to operate at a loss indefinitely. If your Vietnamese entity has reported losses for three or more consecutive years while the global group remains profitable, an audit is almost guaranteed.
The Fix: Conduct a "Loss Analysis" study. If the losses are genuine: stemming from high startup costs, unfavorable exchange rates, or economic downturns: you must provide objective evidence. Aligning your internal story with external market data is essential. For expert guidance on managing these risks, consider consulting with our tax specialists.
5. Weak or "Cherry-Picked" Benchmarking Studies
Auditors are experts at spotting "biased" benchmarking. If your set of comparable companies is too small, uses companies from vastly different industries, or ignores loss-making comparables without a valid reason, the tax authorities will likely reject your study and perform their own "secret" benchmarking, often resulting in a much higher tax liability.
The Fix: Use reliable, updated databases and follow a transparent, multi-step selection process. Ensure your search criteria are consistent with GDT standards and that you can justify every "exclude" decision in your set of comparables.
6. Misalignment Between Documentation and Financial Statements
One of the quickest ways to lose credibility during an audit is to present TP documentation that does not reconcile with your audited financial statements or your CIT (Corporate Income Tax) returns. Discrepancies in revenue figures, intercompany expense totals, or net margins will lead auditors to question the integrity of your entire reporting system.
The Fix: Implement a rigorous reconciliation process. Before final submission, the finance team and the TP advisors must cross-check every figure in the TP forms against the statutory accounts. For businesses just starting out, streamlining these processes early is vital: refer to our guide on starting your FDI business for foundational tips.
7. Lack of "Economic Substance" (The Substance vs. Form Test)
Tax authorities are moving beyond what is written in a contract to look at what is actually happening on the ground. If your contract says the Vietnamese entity bears no risk, but the entity is actually making strategic decisions and managing market volatility, the GDT will re-characterize the transaction to reflect reality.
The Fix: Ensure your "Functions, Assets, and Risks" (FAR) analysis is not just a theoretical exercise. It must align with the actual day-to-day operations of your staff. If you need to formalize these roles, our labor category resources can help you structure internal policies correctly.
8. High Management Fees and Royalties Without "Benefit"
Intercompany charges for management services or intellectual property (IP) are under intense scrutiny. In Vietnam, you cannot simply charge a percentage of revenue. You must prove the "Benefit Test": Did the Vietnamese entity actually receive the service, and did that service provide a commercial benefit?
The Fix: Maintain a "Service Folder" for all intercompany charges. This should include emails, meeting minutes, presentation decks, and work products that prove the services were rendered. Without this "evidence of benefit," the tax authorities will likely disallow the entire expense for CIT purposes.
9. Revenue-Workforce Mismatch
In the age of the digital economy, the GDT is looking for a correlation between where profit is booked and where people are working. If your Vietnamese entity generates high revenue but has no senior management or technical staff capable of driving that revenue, it suggests that the "value creation" is happening elsewhere, leading to a potential audit of your profit allocation.
The Fix: Review your organizational chart. Ensure that your senior personnel’s job descriptions and actual activities support the profit levels you are reporting in Vietnam. Transparently documenting the roles of your team members and their contributions to local value creation is key to defending your position.
10. Reactive vs. Proactive Compliance
Many businesses treat Transfer Pricing as a "year-end task." This reactive approach means that by the time you notice a problem, it is already too late to change the pricing or the contracts for that year. Manual processes and a lack of internal communication between the tax and operational departments often lead to errors that auditors easily exploit.
The Fix: Move toward a proactive TP management model. Establish internal "Transfer Pricing Dashboards" to monitor intercompany transactions in real-time. This allows you to make year-end adjustments before the books are closed, ensuring you stay within the arm's length range.
Through the Above Article
Transfer pricing is no longer just a compliance checkbox; it is a critical strategic risk for any multinational operating in Vietnam. The cost of a failed audit: in terms of financial penalties and management time: far outweighs the cost of proactive planning and robust documentation.
If you are unsure about your current TP posture or if you have received an audit notice, do not wait until the deadline is looming. The complexities of Decree 132 require professional, specialized expertise to navigate successfully.
At BLaw Vietnam, our team is dedicated to helping you optimize your tax position while maintaining the highest standards of compliance. Whether you need a comprehensive review of your Local File or a defense strategy for an ongoing audit, we are here to support your business.
Ready to secure your business against TP risks?
We invite you to explore our FAQ for quick answers or contact us directly for a consultation. Let’s work together to ensure your business is built on a foundation of legal and financial certainty.
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