Norway

Norway uses the national identity number and D number for individuals, and the organisation number for legal entities.

NO NOR 3 TIN types Last reviewed 2026-06-05

TIN types

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

Validate Norway TIN

Norwegian National Identity Number (Fødselsnummer)

Current Individuals

Folkeregisteret / Skatteetaten (National Population Register / Norwegian Tax Administration)

Permanent personal identifier for people born in Norway, registered as resident in Norway, or Norwegian citizens abroad who need a Norwegian passport or ID card.

Details

Examples

010185 001 20 301082 999 39

Where to find it

On Norwegian passports, national ID cards, driving licences, and official letters or documents from Norwegian tax and public authorities.

Common names

Fødselsnummer National identity number Personal identity number

Structure

1-6 Date segment Usually the date of birth in day-month-year order, but official exceptions exist.

7-9 Individual number Sequential individual segment; historic gender and century inference should not be relied on for new allocations.

10-11 Verification digits Two control digits.

Official source

skatteetaten.no skatteetaten.github.io oecd.org

Norwegian D-Number

Current Individuals

Folkeregisteret / Skatteetaten (National Population Register / Norwegian Tax Administration)

Identity number for foreign citizens who need a Norwegian identification number but do not meet the conditions for a national identity number.

Details

Examples

410185 000 33 550185 000 50

Where to find it

On official letters or documents from Norwegian tax and public authorities after the D number has been issued.

Common names

D-nummer D number

Structure

1-2 Offset day Day segment with 40 added to the day value.

3-6 Month and year segment Month and year segment linked to the birth date or, in limited cases, registration-date handling.

7-9 Individual number Sequential individual segment; historic gender and century inference should not be relied on for new allocations.

10-11 Verification digits Two control digits.

Official source

skatteetaten.no skatteetaten.github.io oecd.org

Norwegian Organisation Number (Organisasjonsnummer)

Current Entities

Enhetsregisteret / Brønnøysundregistrene (Central Coordinating Register for Legal Entities / Brønnøysund Register Centre)

Nine-digit identifier for legal entities registered in the Central Coordinating Register for Legal Entities and used as the Norwegian TIN for legal entities.

Details

Examples

974 760 673 812 345 672

Where to find it

On official documents issued by the legal entity or by government agencies, in tax forms, and on business documents.

Common names

Organisasjonsnummer Organisation number Organization number

Structure

1-8 Entity number Core entity identifier.

9 Check digit Final control digit.

Official source

brreg.no data.brreg.no skatteetaten.no oecd.org