Quick answer: When a foreign parent transfers technology to its Vietnamese subsidiary (patent licensing, know-how, technical support), the fees the subsidiary pays — royalties, technical service fees — are taxed in Vietnam under the foreign contractor tax mechanism: VAT and CIT are withheld at source before remitting abroad. The double tax agreement between Vietnam and the parent’s country may reduce the withholding CIT rate if conditions are met and treaty-relief procedures are completed. On the technology-law side, note Law 115/2025/QH15 amending the Technology Transfer Law, effective 01/4/2026.
Applicable legal bases
The instruments below are in force as of the writing date (20/10/2026) and directly govern this article:
- Corporate Income Tax Law 67/2025/QH15 (effective 01/10/2025) — royalty and technology-transfer income subject to CIT.
- Foreign contractor tax mechanism — withholding VAT and CIT at source on payments to foreign organizations without a permanent establishment in Vietnam.
- Double Tax Agreements (DTAs) between Vietnam and each country — royalty articles, conditions for treaty-reduced withholding rates.
- Law 115/2025/QH15 amending the Technology Transfer Law (effective 01/4/2026; Article 8 on capital contribution by technology now requires the “lawful owner of the technology”).
- Tax Administration Law 108/2025/QH15 (effective 01/7/2026, replacing Law 38/2019/QH14) — the Vietnamese party’s withholding, declaration and payment duties.
In-depth analysis
Intra-group technology transfer is among the most scrutinized related-party transactions because it touches three areas at once: tax (are royalties commensurate with the technology’s value), customs/IP (is the technology registered and reasonably valued), and foreign exchange (remitting money abroad). For tax, the rule is that the Vietnamese party — the subsidiary — must withhold before paying the parent: VAT on technical service fees (where the service is deemed consumed in Vietnam) and CIT on royalties. Remitting the gross amount abroad without withholding breaches the withholding duty and draws reassessment plus penalties.
The tax treaty is the key relief valve. Most DTAs Vietnam has signed contain a dedicated royalties article with withholding rates below domestic levels — but the relief is NOT automatic: the parent must prove beneficial ownership of the royalties, hold a tax-residency certificate, and the Vietnamese party must file treaty-application notices with the tax authority. Many groups “forget” this procedure for years, overpaying at domestic rates unnecessarily.
The second legal layer is the amended Technology Transfer Law. Law 115/2025/QH15 (effective 01/4/2026) amends, among others, Article 8 on capital contributions in the form of technology — the contributor must be the “lawful owner of the technology”. For deals where the parent contributes technology as capital to the Vietnamese subsidiary (instead of licensing for fees), proving lawful ownership becomes a threshold condition. Valuing contributed technology also needs grounding — sky-high valuations to inflate charter capital attract both tax suspicion and transfer-pricing challenges.
Four things to do when paying technology-transfer fees
- Characterize the payment correctly: distinguish royalties (rights to use IP and know-how) from technical service fees — withholding CIT rates and VAT treatment differ.
- Withhold contractor tax before remitting: compute source-withheld VAT and CIT correctly; declare and remit on time.
- Complete treaty procedures (if available): prepare the parent’s tax-residency certificate, prove beneficial ownership, and notify the tax authority to access DTA-reduced rates.
- Prepare transfer-pricing files: demonstrate arm’s-length royalties — transfer agreements, valuation reports, comparables.
Common risks and how to prevent them
- Remitting abroad without withholding: always withhold first; breaching the withholding duty triggers full reassessment plus penalties and interest.
- Skipping treaty procedures for years: review the DTAs in force with the parent’s country now; filing for treaty relief can save very large amounts.
- Disproportionate royalties: fees far above the technology’s real value look like profit shifting; get an independent valuation before signing.
- Capital contribution without ownership proof: under Law 115/2025/QH15, prepare lawful-ownership dossiers before contributing technology as capital.
Frequently asked questions
1. How do technical support fees differ from royalties for tax?
Royalties pay for the right to use intellectual property; service fees pay for experts’ work performed. VAT and withholding CIT apply differently — contracts must separate them clearly, not lump them together.
2. What if the parent is in a country with no treaty with Vietnam?
Full domestic withholding rates apply, with no treaty relief. A factor to weigh when choosing where to locate the parent or the group’s IP owner.
3. Must technology-transfer contracts be registered with the state?
Depending on the technology type and transfer form, some contracts must be registered with the science-and-technology authority. Missing a mandatory registration can affect contract validity and cost deductibility.
4. How to value contributed technology safely?
Hire a reputable independent valuer, use recognized valuation methods, and keep the full working file. The valuation must withstand both tax authority and audit scrutiny.
Key takeaway for investors
Paying technology fees to the parent is not just moving money — it is a full-duty tax transaction: withholding at source, treaties, transfer pricing. Getting these three right keeps the group’s technology cash flow both lawful and optimized.
This article has been quality-reviewed by the FLAW AI Legal Council This content is legal reference only and does not replace counsel for a specific case.
