Vietnam · Pillar Two · In force

Vietnam Pillar Two obligations

Vietnam imposes 4 separate filing obligations under Pillar Two. The earliest is Thông báo đơn vị hợp thành chịu trách nhiệm kê khai, due within 30 days of the reporting fiscal year end. Checked against the authority on 10 October 2026.

Checked 10 October 2026 Primary-sourced 4 separate filing obligations

A 30-day notification and a 90-day registration run far ahead of the returns, and the QDMTT return falls at 12 months rather than the usual 15.

Access gate — clear this before anything can be filed

10-digit tax code for the filing entity (Mẫu số 01-MST-ĐVHT)

The tax code is the prerequisite for filing and paying. A successor filing entity inherits the existing code. If the group does not notify its filing entity, the tax authority designates one and the designated entity must respond within 10 days.

What is in force in Vietnam

ChargeLocal nameIn force from
IIRThuế thu nhập doanh nghiệp bổ sung theo quy định chống xói mòn cơ sở thuế toàn cầuFiscal year 2024
UTPRNot adoptedn/a
DomesticThuế tối thiểu nội địa đạt chuẩn (QDMTT)Fiscal year 2024

The 4 separate filing obligations

Thông báo đơn vị hợp thành chịu trách nhiệm kê khai

Also: Mẫu số 01/TB-ĐVHT · Designated filing entity notification

Notification of the constituent entity responsible for filing, with the list of Vietnamese constituent entities. Required where the group has more than one Vietnamese entity.

Who files
The group
Deadline
Within 30 days after the end of the reporting fiscal year. Change of filing entity: within 10 days of the event
Channel
In person, by post, or the tax authority's electronic transaction portal

Nghị định 236/2025/NĐ-CP, Art. 14 ↗

Tờ khai đăng ký thuế

Also: Mẫu số 01-ĐKTĐ-ĐVHT · Tax registration

Tax registration of the filing entity, which results in the issue of a 10-digit tax code.

Who files
The designated filing entity
Deadline
No later than 90 days after the end of the reporting fiscal year. Changes within 10 working days
Channel
In person, by post, or the tax authority's electronic transaction portal

Nghị định 236/2025/NĐ-CP, Art. 15 ↗

Tờ khai thông tin theo Quy định về thuế tối thiểu toàn cầu

Also: GloBE information return

The GloBE information return.

Who files
The designated filing entity
Deadline
QDMTT: within 12 months of fiscal year end. IIR: within 15 months, extended to 18 months for the group's first in-scope year
Channel
In person, by post, or the tax authority's electronic transaction portal

Nghị quyết 107/2023/QH15, Art. 6 ↗

Tờ khai thuế thu nhập doanh nghiệp bổ sung

Also: Mẫu số 01/TNDN-QDMTT · Top-up tax return

The top-up tax return. The QDMTT version allocates the tax among the Vietnamese constituent entities. An explanatory note reconciling accounting-standard differences is a required component.

Who files
The designated filing entity
Deadline
QDMTT: within 12 months of fiscal year end. IIR: within 15 months, 18 in the first year
Channel
In person, by post, or the tax authority's electronic transaction portal

Nghị định 236/2025/NĐ-CP, Art. 4(2) ↗

Penalties

Decree 236 cites the Law on Handling of Administrative Violations No. 56/2024/QH15 as the basis but states no amounts. Transitional relief is explicit: Art. 11(4) disapplies administrative tax penalties for listed acts during the transition period, including notifications and registrations up to 90 days late. The transition period runs to fiscal years ending on or before 31 December 2026 and does not extend beyond 30 June 2028. Art. 11(5) confirms the underlying obligations still stand.

What catches groups out in Vietnam

  • The QDMTT return falls at 12 months, earlier than almost anywhere else — for a December 2025 year end that is 31 December 2026.
  • The transitional penalty shield lapses for fiscal years ending after 31 December 2026, so the next cycle is the first with full exposure.
  • Decree 236 names an electronic transaction portal but does not identify it, so the channel is not confirmed.

Recent changes affecting Vietnam

  • 2026-12-31 — Vietnam's QDMTT return and top-up tax return fall due 12 months after fiscal year end, not the 15 months that applies almost everywhere else. For a December 2025 year end that is 31 December 2026.
  • 2026-12-31 — Vietnam's transitional penalty shield covers fiscal years ending on or before 31 December 2026, disapplying administrative penalties for listed acts including notifications and registrations up to 90 days late. The underlying obligations still stand.

All dated changes →

Common questions

What must be filed in Vietnam under Pillar Two?

4 separate obligations: Thông báo đơn vị hợp thành chịu trách nhiệm kê khai; Tờ khai đăng ký thuế; Tờ khai thông tin theo Quy định về thuế tối thiểu toàn cầu; Tờ khai thuế thu nhập doanh nghiệp bổ sung.

When is the Thông báo đơn vị hợp thành chịu trách nhiệm kê khai due in Vietnam?

Within 30 days after the end of the reporting fiscal year. Change of filing entity: within 10 days of the event. Filed by: The group. Channel: In person, by post, or the tax authority's electronic transaction portal.

When is the Tờ khai đăng ký thuế due in Vietnam?

No later than 90 days after the end of the reporting fiscal year. Changes within 10 working days. Filed by: The designated filing entity. Channel: In person, by post, or the tax authority's electronic transaction portal.

What access is needed before filing in Vietnam?

10-digit tax code for the filing entity (Mẫu số 01-MST-ĐVHT). The tax code is the prerequisite for filing and paying. A successor filing entity inherits the existing code. If the group does not notify its filing entity, the tax authority designates one and the designated entity must respond within 10 days.

What are the penalties in Vietnam?

Decree 236 cites the Law on Handling of Administrative Violations No. 56/2024/QH15 as the basis but states no amounts. Transitional relief is explicit: Art. 11(4) disapplies administrative tax penalties for listed acts during the transition period, including notifications and registrations up to 90 days late. The transition period runs to fiscal years ending on or before 31 December 2026 and does not extend beyond 30 June 2028. Art. 11(5) confirms the underlying obligations still stand.

Where this comes from

Every row on this page was checked against the authority's own published page on 10 October 2026. Resolution 107/2023/QH15 and Decree 236/2025/NĐ-CP were both read in official government-hosted copies. The filing portal is named in the decree only as 'the electronic transaction portal' and is not confirmed to be the existing eTax system; penalty amounts sit in the general administrative penalty decree, which was not read.

Cite this page

Saurabh Satija, “Vietnam Pillar Two filing obligations”, https://saurabhsatija.com/pillar-two-vietnam, accessed [date].

Quotation and citation with attribution and a link are welcome. The underlying data is open as JSON and as plain text.

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