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Country guide

Mongolia

Mongolia uses taxpayer numbers in the integrated tax registration system. Current official guidance maps Mongolian citizens to a 12-digit civil registration number, foreign resident individuals to either a tax-administration number or the newer 13-digit F-register, organizations without legal-entity status to an 11-digit tax-administration number, and legal entities to the legal-entity registration number.

MN MNG 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 Mongolia TIN
Mongolia Civil Registration Number (Citizen TIN)
Current Individuals

Улсын бүртгэлийн ерөнхий газар (General Authority for State Registration) / Татварын ерөнхий газар (Mongolian Tax Administration)

Primary taxpayer number for Mongolian citizens, using the 12-digit civil registration number assigned from the civil state-registration database.

Details
Examples
1234 5678 9012
Where to find it

Visible by scanning the QR code on the back of the Mongolian citizen ID card, and in the e-tax, ebarimt, or e-Mongolia systems.

Common names
Civil registration number Citizen registration number Иргэний бүртгэлийн дугаар Татвар төлөгчийн дугаар
Structure
1-12 Identifier Unique numeric identifier assigned from the civil state-registration database.
Official source
legalinfo.mn mta.gov.mn burtgel.gov.mn
Mongolia F-Register (Foreign Resident TIN)
Current Individuals

Гадаадын иргэн, харьяатын газар (Immigration Agency of Mongolia) / Татварын ерөнхий газар (Mongolian Tax Administration)

Thirteen-digit F-register used for foreign individuals residing in Mongolia and, under current tax practice, for residential foreign national taxpayers where issued.

Details
Examples
1234 5678 90123
Where to find it

In the e-Mongolia F-register service, through the Immigration Agency, by email from the Immigration Agency, or on the residence permit for foreign residents.

Common names
F-register Foreign registration number F регистр
Structure
1-13 Identifier Unique foreigner registration number that official guidance describes as including country code, date of birth, and gender information.
Official source
immigration.gov.mn e-mongolia.mn legalinfo.mn assets.kpmg.com
Mongolia Tax Administration Taxpayer Number
Current Individuals Entities

Татварын ерөнхий газар (Mongolian Tax Administration)

Eleven-digit taxpayer number assigned by the Mongolian Tax Administration to foreign citizens and to organizations without legal-entity status under taxpayer registration guidance.

Details
Examples
12345678901
Where to find it

On the electronic or paper taxpayer certificate and in the Mongolian tax administration systems.

Common names
Taxpayer identification number Taxpayer number Татвар төлөгчийн дугаар
Structure
1-11 Identifier Unique numeric taxpayer number assigned by the Tax Administration.
Official source
legalinfo.mn mta.gov.mn
Mongolia Legal-Entity Registration Number (Entity TIN)
Current Entities

Улсын бүртгэлийн ерөнхий газар (General Authority for State Registration) / Татварын ерөнхий газар (Mongolian Tax Administration)

Entity taxpayer number for Mongolian legal entities, branches, and representative offices, using the legal-entity registration number from state registration.

Details
Examples
123 4567
Where to find it

On the state registration certificate, registry extracts, and taxpayer certificate.

Common names
Legal-entity registration number Company registration number Хуулийн этгээдийн регистрийн дугаар
Structure
1-7 Identifier Seven-digit legal-entity registration number assigned through state registration.
Official source
legalinfo.mn uvs.nso.mn