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Viet Nam

Viet Nam uses tax-authority tax codes for organizations, dependent units, and certain individuals without a Vietnamese personal identification number. From 1 July 2025, Vietnamese citizen individuals generally use their 12-digit personal identification number as their TIN.

VN VNM 4 TIN types Last reviewed 2026-06-05

TIN types

4 published formats. Open a type to see examples, structure details, and official sources.

Validate Viet Nam TIN
Vietnamese 10-digit Tax Code for Organizations
Current Entities

Tổng cục Thuế (General Department of Taxation)

Primary tax code for enterprises, cooperatives, legal-entity organizations, and organizations without legal personality that directly incur tax obligations.

Details
Examples
0101234567
Where to find it

On tax registration certificates, tax notices, enterprise or cooperative registration records, and tax filings.

Common names
Mã số thuế MST Tax code
Structure
1-2 Tax-code interval Administrative interval assigned within the tax-code structure.
3-9 Sequence Seven-digit increasing sequence.
10 Check digit Control digit included in the tax code.
Official source
thuvienphapluat.vn
Vietnamese 10-digit Tax Code for Individuals without Personal Identification Number
Current Individuals

Tổng cục Thuế (General Department of Taxation)

Tax-authority tax code for individuals who are assigned a tax code instead of using a Vietnamese personal identification number, including foreign nationals and Vietnamese citizens living abroad without such a number in the National Population Database.

Details
Examples
0101234567
Where to find it

On personal tax registration notices, tax notices, tax filings, and legacy personal tax records.

Common names
Mã số thuế cá nhân MST Personal tax code
Structure
1-2 Tax-code interval Administrative interval assigned within the tax-code structure.
3-9 Sequence Seven-digit increasing sequence.
10 Check digit Control digit included in the tax code.
Official source
thuvienphapluat.vn gdt.gov.vn
Vietnamese 13-digit Tax Code for Dependent Units
Current Entities

Tổng cục Thuế (General Department of Taxation)

Tax code for dependent units, branches, representative offices, and other linked taxpayer cases where the code is derived from a 10-digit parent or contract tax code with a three-digit suffix.

Details
Examples
0101234567-001
Where to find it

On dependent-unit registration records, tax registration certificates, tax notices, and tax filings for branches or dependent units.

Common names
Mã số thuế đơn vị phụ thuộc MST Dependent-unit tax code
Structure
1-10 Parent tax code Related 10-digit tax code.
11 Separator Hyphen separator between the parent code and the suffix.
12-14 Suffix Three-digit sequence for the dependent or linked unit.
Official source
thuvienphapluat.vn
Vietnamese Personal Identification Number used as TIN
Current Individuals

Bộ Công an (Ministry of Public Security)

Twelve-digit personal identification number of a Vietnamese citizen, used instead of a tax code for individuals and for the representative of a household, business household, or individual business from 1 July 2025.

Details
Examples
001090123456
Where to find it

On the Vietnamese identity card or in official identity and National Population Database records.

Common names
Số định danh cá nhân Số căn cước Personal identification number
Structure
1-12 Identifier Twelve-digit personal identifier established from the National Population Database.
Official source
thuvienphapluat.vn english.luatvietnam.vn en.baochinhphu.vn gdt.gov.vn