Many Vietnamese companies buy advertising and platform services from foreign suppliers operating through e-commerce platforms — most commonly TikTok, Google and Meta (Facebook). The recurring question is whether the Vietnamese buyer must withhold, declare and pay foreign contractor tax on the supplier’s behalf. Official Letter No. 7279/TNI-QLDN2 dated 13 August 2026, issued by the Tay Ninh Provincial Tax Department in response to a company purchasing services from TikTok Pte. Ltd, clarifies how this should be handled. Trustlineax summarises it for companies with similar transactions.
1. Legal basis
- Official Letter No. 7279/TNI-QLDN2 dated 13 August 2026 of the Tay Ninh Provincial Tax Department.
- Clause 3, Article 43 of Decree No. 252/2026/ND-CP dated 30 June 2026 — withholding and payment of tax on behalf of parties doing business through e-commerce platforms.
- Article 46 of Decree No. 252/2026/ND-CP — responsibilities of e-commerce platform operators subject to the withholding and payment obligation.
- Point a Clause 2 and Point c Clause 3, Article 30 of Circular No. 89/2026/TT-BTC dated 30 June 2026 — VAT and CIT declaration for foreign contractors and foreign sub-contractors.
2. The general rule: the Vietnamese buyer must withhold and pay on the supplier’s behalf
Under Clause 3, Article 43 of Decree No. 252/2026/ND-CP:
“A business organisation in Vietnam applying the credit method for value added tax that purchases goods or services from a foreign supplier or a non-resident individual through an e-commerce platform is responsible for: (a) withholding and paying on behalf the VAT payable by the foreign supplier or non-resident individual on the supply of services in accordance with VAT law; (b) withholding and paying on behalf the corporate income tax payable by the foreign supplier under Article 44 of this Decree; (c) withholding and paying on behalf the personal income tax payable by the non-resident individual under Article 44 of this Decree…”
In principle, therefore, where a Vietnamese company applying the VAT credit method purchases goods or services from a foreign supplier through an e-commerce platform, it must withhold, declare and pay the supplier’s VAT and CIT — or PIT where the seller is a non-resident individual.
3. The key exception: the foreign supplier files and pays directly through the e-portal
This is the decisive point in the official letter: where the foreign supplier itself declares and pays tax through the electronic portal for foreign suppliers on the revenue received from the company (with the invoice or supporting document showing a price inclusive of Vietnamese tax), the purchasing company no longer has to declare, withhold or pay foreign contractor tax on that supplier’s behalf.
In other words, if the foreign supplier has registered and pays tax directly to the Vietnamese tax authorities through the dedicated portal for foreign suppliers — the mechanism already adopted by major platforms such as Google, Meta and TikTok — the buyer’s withholding obligation in Vietnam does not arise, because the tax has already been paid by the supplier itself.
4. Three consequences that must be kept separate
Companies frequently conflate the three distinct questions below. The official letter answers each of them differently:
| Question | Outcome | Condition |
|---|---|---|
| Withholding and paying foreign contractor tax on behalf | Not required | The foreign supplier has declared and paid tax through the electronic portal; documentation shows the price is inclusive of Vietnamese tax |
| Crediting input VAT | Not creditable | The document issued by the foreign supplier is not a VAT invoice as prescribed by Vietnamese law |
| Claiming the cost as deductible for CIT purposes | Deductible | The invoice shows the company’s full name, address and tax code, and valid payment evidence exists |
4.1. Input VAT credit
The letter states clearly that where the invoice or document issued by the foreign supplier is not a VAT invoice under Vietnamese law, the company is not entitled to credit input VAT on that expense.
This warrants particular attention: even though the foreign supplier has paid its own tax, the document it issues to the Vietnamese buyer is typically in an international format rather than a valid Vietnamese VAT invoice — so any VAT shown on it cannot be credited.
4.2. Deductibility for CIT
Although input VAT is not creditable, the service cost may still be recognised as a deductible expense for CIT purposes provided that the invoice issued by the foreign supplier contains the company’s full name, address and tax code, and valid payment evidence is available.
5. Responsibilities of e-commerce platform operators
Where the e-commerce platform operator is itself subject to the withholding and payment obligation (as distinct from the self-filing scenario above), Article 46 of Decree No. 252/2026/ND-CP sets out the following responsibilities:
- Managing the account names and keys issued by the tax authority; retaining transaction data, information and documents relevant to determining the tax payable and the tax withheld from foreign suppliers, business households and business individuals, in accordance with tax administration law.
- Withholding tax, declaring the tax withheld and paying it on behalf accurately and in full based on the information provided by the foreign supplier, business household or business individual; and bearing legal responsibility for the accuracy, truthfulness and completeness of the tax file.
6. What companies should do
- Check whether the foreign supplier has registered, declared and paid tax directly through the electronic portal for foreign suppliers — this determines whether the company must withhold and pay foreign contractor tax at all.
- Check whether the supplier’s invoice states that the price is inclusive of Vietnamese tax — if it is and the supplier pays directly, no withholding is required.
- Do not automatically credit input VAT on documents issued by a foreign supplier where those documents are not valid Vietnamese VAT invoices.
- Retain complete documentation — an invoice showing the company’s name, address and tax code, together with valid payment evidence — to support deductibility of the cost for CIT purposes.
- For purchases from other foreign suppliers (Google, Meta, Amazon and others), the same principles must be assessed separately against each supplier’s actual tax registration status — do not assume a single treatment applies to every supplier.
This article was compiled by Trustlineax based on Official Letter No. 7279/TNI-QLDN2 dated 13 August 2026 of the Tay Ninh Provincial Tax Department, Decree No. 252/2026/ND-CP (Articles 43 and 46) and Circular No. 89/2026/TT-BTC (Article 30). It reflects the treatment of one specific case addressed by the tax authority and is provided for general reference; companies should verify the actual tax registration and filing status of each foreign supplier. It does not replace tax advice tailored to a specific case.