The UKVFTA is not only a goods-tariff story: its e-commerce and digital services chapter opens a dedicated corridor for Vietnamese businesses to sell cross-border into the UK without a physical presence. This article works through the three things that must be done right in live operations: using the treaty commitments, handling UK VAT, and transferring UK customer data back to Vietnam lawfully.
What does the UKVFTA commit on e-commerce and digital services?
The UKVFTA e-commerce chapter (built on the corresponding EVFTA chapter) contains the base commitments: neither side imposes customs duties on electronic transmissions; electronic signatures and electronic transactions are recognised as legally valid, without discrimination merely because a transaction is electronic; businesses cannot be forced to disclose software source code as a business condition; and the parties cooperate on online consumer protection, spam and personal data protection. These are state-to-state commitments — they create a predictable environment but do not replace compliance with the law of the market sold into.
On services, UKVFTA market-access and non-discrimination commitments allow many Vietnamese digital services (software, design, digital marketing, online consulting) to be supplied into the UK on a cross-border basis without establishing a UK entity. Businesses must still check their own service sector against the schedules of commitments and reservations of both sides, because market access always comes with sector-specific reservation lists.
UK VAT: the point of sale is where the duty arises
For goods sold online to UK consumers, the UK applies point-of-sale VAT for lower-value consignments (the GBP 135 threshold under current UK rules — verify at the time of sale): the overseas seller or the online marketplace must register for UK VAT and charge VAT at the sale, instead of leaving the customer to declare at the border. Consignments above the threshold revert to ordinary import VAT mechanics. The registration duty arises from sales into the UK and does not depend on the seller having any UK presence.
For digital services sold to UK consumers (B2C), the place of supply is where the consumer lives: a Vietnamese supplier digital service sold to a private customer in the UK bears UK VAT and the supplier must register under the scheme for non-UK suppliers; sales to UK businesses (B2B) generally run through the customer-side reverse charge. Vietnamese marketplaces and sellers must simultaneously comply with the domestic frame for cross-border operations under the E-commerce Law 122/2025/QH15 and Decree 248/2026/ND-CP (replacing Decree 52/2013 from 01/7/2026), plus Vietnamese tax duties on income from this sales channel.
Transferring UK customer data to Vietnam: allowed, with a mechanism
In principle, UK customer data may be transferred to Vietnam for storage and processing — but not freely. The UK side applies UK GDPR and UK data protection law: Vietnam is not on the UK adequacy list, so transferring personal data from the UK to Vietnam needs a valid transfer mechanism such as the UK international data transfer agreement (IDTA) or the UK addendum to EU SCCs, together with a transfer risk assessment. The Vietnamese seller receiving data as processor or controller must sign and honour that mechanism.
On the Vietnam side, once data is processed in Vietnam the business is simultaneously under the domestic personal data frame: the Personal Data Protection Law 91/2025/QH15 and Decree 356/2025/ND-CP (Decree 13/2023 expired from 01/01/2026). The right approach is to draw a data map for the UK sales channel: what data is collected, where it is stored, under which mechanism it moves, who accesses it — and to write data duties into terms with the marketplace, payment providers and logistics partners, instead of letting data “flow” by tool defaults.
FAQs
What does UKVFTA commit on e-commerce and digital services?
Base commitments include: no customs duties on electronic transmissions; recognition of electronic signatures and transactions; no forced disclosure of software source code as a business condition; and cooperation on online consumer protection and data protection. On services, market-access commitments let many Vietnamese digital services be supplied cross-border into the UK without a UK entity, subject to sector schedules and reservations.
What must a Vietnamese e-commerce platform comply with when selling to the UK (tax, consumer protection)?
Two layers: in the UK — VAT under UK rules for goods and digital services sold to UK customers, plus UK consumer-protection rules for distance selling; in Vietnam — the domestic e-commerce frame under E-commerce Law 122/2025/QH15 and Decree 248/2026/ND-CP (replacing Decree 52/2013 from 01/7/2026) for platform and seller operations, plus Vietnamese tax duties on channel income.
How is VAT calculated when selling goods online to UK customers?
Online goods sold to UK consumers fall under point-of-sale VAT for lower-value consignments (the GBP 135 threshold under current UK rules): the overseas seller or marketplace must register for UK VAT and charge VAT at sale; above the threshold, ordinary import VAT applies. B2C digital services are VAT-taxed where the consumer lives (the UK), with registration under the non-UK supplier scheme; B2B usually runs through the UK customer reverse charge.
Can UK customer data be transferred back to Vietnam?
Yes, but only through a valid UK GDPR transfer mechanism because Vietnam has no UK adequacy decision: typically the UK international data transfer agreement (IDTA) or the UK addendum to EU SCCs, plus a transfer risk assessment. Once data is processed in Vietnam, the Personal Data Protection Law 91/2025/QH15 and Decree 356/2025/ND-CP also apply.
This article has been quality-reviewed by the FLAW AI Legal Council
