Country guide

Thailand

Thailand uses 13-digit tax identifiers. Individuals who have a civil-registration personal identification number use that number as their TIN, entities registered with the Department of Business Development use their juristic person registration number, and the Revenue Department issues 099-prefixed TINs to taxpayer categories that do not use one of those identifiers.

TH THA 6 TIN types Last reviewed 2026-06-05

TIN types

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

Validate Thailand TIN

Thailand Personal Identification Number

Current Individuals

กรมการปกครอง (Department of Provincial Administration, Ministry of Interior)

The civil-registration personal identification number is used as the TIN for individuals who have one.

Details

Examples

1-1005-00123-45-1

Where to find it

On the Thai national ID card and other official documents that show the 13-digit personal identification number.

Common names

National ID Personal Identification Number เลขประจำตัวประชาชน

Structure

1 Person category Civil-registration category of the individual.

2-5 Registrar code Local registration office code.

6-12 Serial Personal serial component.

13 Check digit Control digit for the identifier.

Official source

oecd.org rd.go.th dga.or.th

Thailand Juristic Person Registration Number

Current Entities

กรมพัฒนาธุรกิจการค้า (Department of Business Development, Ministry of Commerce)

The Department of Business Development juristic person registration number is used as the TIN for entities registered with the DBD.

Details

Examples

0107534567890

Where to find it

On the certificate of incorporation or registration and in the DBD DataWarehouse.

Common names

DBD registration number Juristic person registration number เลขทะเบียนนิติบุคคล

Structure

1-3 Issuing agency range Department of Business Development issuing range.

4-12 Registration body Core registration number.

13 Final digit Final digit of the registration number.

Official source

oecd.org rd.go.th datawarehouse.dbd.go.th

Thailand Revenue Department TIN for Foreign Individuals and Undivided Estates

Current Individuals Entities

กรมสรรพากร (Revenue Department)

The Revenue Department issues this 0991 TIN to foreign individuals and undivided estates when they do not use a civil-registration identification number.

Details

Examples

0991000000011

Where to find it

On the Revenue Department taxpayer identification card and Revenue Department tax records.

Common names

Revenue Department TIN Taxpayer Identification Number เลขประจำตัวผู้เสียภาษีอากร

Structure

1-3 Revenue Department prefix Fixed prefix for TINs issued by the Revenue Department.

4 Taxpayer category Category for foreign individuals or undivided estates.

5-12 Running number Sequential number within the taxpayer category.

13 Check digit Control digit for the identifier.

Official source

oecd.org rd.go.th

Thailand Revenue Department TIN for Ordinary Partnerships and Groups of Persons

Current Entities

กรมสรรพากร (Revenue Department)

The Revenue Department issues this 0992 TIN to ordinary partnerships and non-juristic groups of persons.

Details

Examples

0992800000017

Where to find it

On the Revenue Department taxpayer identification card and Revenue Department tax records.

Common names

Revenue Department TIN Taxpayer Identification Number เลขประจำตัวผู้เสียภาษีอากร

Structure

1-3 Revenue Department prefix Fixed prefix for TINs issued by the Revenue Department.

4 Taxpayer category Category for ordinary partnerships and non-juristic groups of persons.

5 Group marker Fixed marker for this taxpayer category.

6-12 Running number Sequential number within the taxpayer category.

13 Check digit Control digit for the identifier.

Official source

oecd.org rd.go.th

Thailand Revenue Department TIN for Juristic Persons

Current Entities

กรมสรรพากร (Revenue Department)

The Revenue Department issues this 0993 TIN to juristic persons that do not use a DBD juristic person registration number.

Details

Examples

0993000000013

Where to find it

On the Revenue Department taxpayer identification card and Revenue Department tax records.

Common names

Revenue Department TIN Taxpayer Identification Number เลขประจำตัวผู้เสียภาษีอากร

Structure

1-3 Revenue Department prefix Fixed prefix for TINs issued by the Revenue Department.

4 Taxpayer category Category for juristic persons.

5-12 Running number Sequential number within the taxpayer category.

13 Check digit Control digit for the identifier.

Official source

oecd.org rd.go.th

Thailand Revenue Department TIN for Income Payers

Current Entities

กรมสรรพากร (Revenue Department)

The Revenue Department issues this 0994 TIN to income payers such as government agencies, state organisations, and local administrative organisations.

Details

Examples

0994000000014

Where to find it

On the Revenue Department taxpayer identification card and Revenue Department tax records.

Common names

Revenue Department TIN Taxpayer Identification Number เลขประจำตัวผู้เสียภาษีอากร

Structure

1-3 Revenue Department prefix Fixed prefix for TINs issued by the Revenue Department.

4 Taxpayer category Category for income payers.

5-12 Running number Sequential number within the taxpayer category.

13 Check digit Control digit for the identifier.

Official source

oecd.org rd.go.th