Basic information about TIN

  • Local name:

    CUIL - Codigo Unico de Identificacion Laboral (Unified Labor Identification Code)

  • Allocating institutions:

    ANSES - Administración Nacional de la Seguridad Social

  • Allocation rules:

    Automatically appointed
    Is assigned automatically with the issue of the identity card

  • More information:

    For the purposes of social insurance

Identifier formats

  • 20000000000

    11 digits (10 + 1 check digit), always starts with 20, 23, 24, 25, 26 or 27

Documents and other resources

  • In documents for communication with the State administration.
  • Is required for creating a bank account.
  • Proof of allocation of CUIL.

Basic information about TIN

  • Local name:

    CDI - Clave de Identificacion (The Identification Code)

  • Allocating institutions:

    AFIP - Administración Federal de Ingresos Públicos (Federal Administration of Public Revenue)

  • Allocation rules:

    Appointed with tax oblication
    Be allocated on the basis of registration

  • More information:

    Persons without CUIL/CUIT

Identifier formats

  • 00000000000

    11 digits

Documents and other resources

  • In documents for communication with the State administration.
  • Is required for creating a bank account.

Basic information about TIN

  • Local name:

    CUIT - Clave Única de Identificación Tributaria (Single Tax Identification Code)

  • Allocating institutions:

    AFIP - Administración Federal de Ingresos Públicos (Federal Administration of Public Revenue)

  • Allocation rules:

    Appointed with tax oblication
    Be allocated on the basis of registration

Identifier formats

  • 20000000000

    11 digits (10 + 1 check digit), always starts with 20, 23, 24, 25, 26 or 27

Documents and other resources

  • On the certificate about registration (Constancias de inscripción) or on the confirmation of the accession to the Monotributo (Constancia de Adhesión al Monotributo), which are available online on the website of the AFIP.
  • On the front side of the tax statement and on other documents for the communication with the tax authority.

Basic information about TIN

  • Local name:

    CUIT - Clave Única de Identificación Tributaria (Single Tax Identification Code)

  • Allocating institutions:

    AFIP - Administración Federal de Ingresos Públicos (Federal Administration of Public Revenue)

  • Allocation rules:

    Automatically appointed
    Be allocated on the basis of registration

Identifier formats

  • 30000000000

    11 digits (always starts with 30, 33 or 34, or 50, 51 or 55 for state entities)

Documents and other resources

  • On the certificate of registration (Constancias de inscripción) or on the confirmation of the accession to the Monotributo (Constancia de Adhesión al Monotributo), which are available online on the website of the AFIP.
  • On the front page of the tax statement and on other documents for the communication with the tax authority.

Basic information about TIN

  • Local name:

    CDI - Clave de Identificacion (The Identification Code)

  • Allocating institutions:

    AFIP - Administración Federal de Ingresos Públicos (Federal Administration of Public Revenue)

  • Allocation rules:

    Appointed with tax oblication
    Be allocated on the basis of registration

  • More information:

    Persons without CUIL/CUIT

Identifier formats

  • 00000000000

    11 digits

Documents and other resources

  • In documents for communication with the State administration.
  • Is required for creating a bank account.

Legislative grounds for the survey

  • OECD Common Reporting Standard
  • The Convention on Mutual Administrative Assistance in tax matters, as amended by the Protocol of 2010, no. 2/2014 Coll. of international directives