Circular No. 32/2025/TT-BTC represents a further refinement of Vietnam’s electronic invoice regulatory framework, reinforcing the Government’s broader objectives of strengthening tax administration, improving transparency, and mitigating risks associated with invoice misuse. Issued against the backdrop of increased digitalization of tax compliance and the rapid expansion of e-commerce and digital business models, the Circular introduces targeted amendments that affect authorization arrangements, invoice identification standards, and the classification of high-risk taxpayers during electronic invoice registration.

Although Circular 32 does not fundamentally restructure the electronic invoice system established under Decree 123/2020/NĐ-CP and its guiding instruments, it introduces important clarifications and additional compliance layers. These changes reflect the tax authority’s increasing reliance on centralized data, cross-agency information sharing, and risk-based supervision to detect and prevent tax evasion, invoice trading, and other non-compliant practices.

For enterprises operating in Vietnam, including domestic companies, foreign-invested enterprises, and cross-border service providers, Circular 32 has direct operational, governance, and tax compliance implications. Businesses are therefore advised to review their invoicing arrangements and internal control frameworks to ensure continued compliance under the updated regulatory landscape.

Authorization for Third Parties to Issue Electronic Invoices

One of the key areas addressed by Circular 32 is the authorization of third parties to issue electronic invoices on behalf of taxpayers. This provision reflects the growing prevalence of outsourced invoicing models, particularly among enterprises using centralized accounting services, digital platforms, or integrated e-commerce systems.

Under Article 4, taxpayers are permitted to authorize a third party to issue electronic invoices, provided that the authorized entity is legally eligible to use electronic invoices and is not subject to any suspension of electronic invoice issuance under tax regulations. This requirement emphasizes that authorization is conditional upon the compliance status of the authorized party and must be assessed not only at the time of authorization but throughout the duration of the arrangement.

The Circular requires that such authorization be made in writing, reinforcing the importance of formal documentation. From a compliance standpoint, written authorization serves as evidence of lawful delegation and provides a clear basis for determining responsibilities in the event of tax inspections, audits, or disputes. Informal or implied authorization arrangements may not be sufficient to demonstrate compliance.

In addition to documenting the authorization, taxpayers must notify the tax authority when registering for electronic invoice usage. This notification requirement allows tax authorities to maintain visibility over invoicing structures and incorporate such information into their risk management systems. It also enables the tax authority to assess whether authorization arrangements are consistent with the taxpayer’s business model and transaction profile.

Circular 32 further introduces a transparency requirement toward buyers of goods and services. Both the authorizing taxpayer and the authorized third party must publicly disclose the authorization arrangement, either through their websites or via mass media channels. This measure aims to enhance trust in electronic invoices and reduce disputes over invoice validity, particularly in cases where invoices are issued by entities other than the contractual seller.

From a practical perspective, enterprises should review existing authorization agreements to ensure that they meet the formal requirements under Circular 32. Businesses should also establish procedures to monitor the compliance status of authorized third parties on an ongoing basis, as any suspension or violation affecting the third party could invalidate issued invoices and expose the taxpayer to tax and administrative risks.

Invoice Numbering, Symbols, and Invoice Series Identification

Circular 32 also introduces refinements to the rules governing invoice numbering, symbols, and series names, reflecting the increasing complexity of electronic invoice usage and the integration of invoices with tax, fee, and charge collection systems.

Article 5 requires electronic invoices to include specific numerical symbols that reflect the type and purpose of the invoice. Newly introduced symbols include:

• “7” to identify electronic invoices used in e-commerce transactions;

• “8” to identify value-added tax invoices integrated with receipts for taxes, fees, and charges; and

• “9” to identify sales invoices integrated with similar receipts.

In addition to numerical symbols, the Circular requires the inclusion of alphabetic characters to indicate invoice types. In particular, the letter “X” is designated for e-commerce invoices. These identifiers enhance the tax authority’s ability to classify invoice data accurately, conduct sector-based analysis, and identify unusual transaction patterns.

The revised requirements have significant implications for enterprises’ invoicing systems and internal processes. Incorrect invoice symbols or series identification may result in invoices being considered improperly issued, which could affect VAT deduction eligibility, corporate income tax deductibility of expenses, and the validity of accounting records.

Enterprises should therefore work closely with accounting teams and electronic invoice service providers to ensure that invoice templates, system settings, and automated workflows are updated in line with Circular 32. Adequate testing and internal training should be conducted to minimize errors during implementation, particularly for businesses issuing large volumes of invoices or operating multiple invoicing models.

Identification of High-Risk Taxpayers in Electronic Invoice Registration

Circular No. 32/2025/TT-BTC expands the criteria used by tax authorities to identify taxpayers considered high-risk when registering for electronic invoice usage. These criteria focus on ownership, management background, business location, and overall compliance profile, reflecting Vietnam’s increasing adoption of a risk-based tax administration approach.

First, a taxpayer may be classified as high-risk where its owner or legal representative has been determined by a competent authority to have previously engaged in fraudulent activities, including invoice trading or serious tax violations. Even where the enterprise itself has no prior non-compliance history, the personal compliance record of key individuals may affect the assessment.

Second, high-risk classification may apply if the owner or legal representative appears on the suspicious transaction list under the Law on Prevention and Combating Money Laundering. This criterion highlights the linkage between tax administration and anti-money laundering controls and may trigger enhanced scrutiny during the electronic invoice registration process.

Third, risks may arise from deficiencies in registered business addresses. Enterprises may be classified as high-risk where the head office address is unclear, not physically verifiable, located in residential premises not approved for business use, or where business activities are conducted outside the province or city of registration without proper updates.

Fourth, tax authorities may assess whether the owner or legal representative concurrently holds management roles in other enterprises that have ceased operations without completing tax code termination procedures, are not operating at their registered addresses, or have committed tax or invoice violations. Such circumstances may indicate elevated compliance risk.

Finally, tax authorities retain the discretion to apply additional risk indicators identified through supervisory experience or data analysis. In such cases, taxpayers must be notified and given the opportunity to provide explanations or supporting documentation before a final risk determination is made.

Tax and Compliance Implications for Enterprises in Vietnam

Circular 32 reinforces the importance of strong internal controls and compliance governance in electronic invoicing. Enterprises should view the Circular as part of a broader regulatory trend toward tighter oversight, increased transparency, and enhanced accountability in tax administration.

For enterprises authorizing third parties to issue invoices, clear documentation and ongoing monitoring are essential to mitigate risks associated with invoice invalidation. Businesses engaged in e-commerce or digital services should pay particular attention to invoice identification requirements, as these sectors are likely to remain a focus of tax authority supervision.

Foreign-invested enterprises should also consider the implications of cross-entity governance structures, especially where legal representatives or owners hold positions in multiple entities. Consistency in registration information and compliance history across entities can help reduce the risk of adverse classification.

Conclusion

Circular No. 32/2025/TT-BTC represents a targeted but meaningful enhancement of Vietnam’s electronic invoice regime. By clarifying authorization mechanisms, refining invoice identification standards, and expanding risk-based supervision criteria, the Circular supports the tax authority’s objective of strengthening compliance while accommodating evolving business practices.

Enterprises operating in Vietnam are advised to conduct a timely review of their invoicing arrangements, internal controls, and compliance processes to ensure alignment with the Circular’s requirements. Proactive preparation and careful implementation will be critical to minimizing operational disruptions and managing tax risks in an increasingly digital regulatory environment