Basic information about TIN

  • Local name:

    SSN - Social Security Number

  • Allocating institutions:

    Social Security Department

  • Allocation rules:

    Automatically appointed

  • More information:

    Social security number

Identifier formats

  • JY000000A

    9 characters (prefix JY + 6 digits + 1 letter), the last letter is always A, B, C or D

Documents and other resources

  • On the registration card (Registration card).
  • On the insured person's card.
  • On the first page of the tax return (online form), and on other documents for the communication with the tax authority.

Basic information about TIN

  • Local name:

    TRN - Tax Reference Number

  • Allocating institutions:

    Comptroller of Taxes

  • Allocation rules:

    Appointed with tax oblication
    Be allocated on the basis of registration

Identifier formats

  • CC00000

    up to 7 characters (2 letters + up to 5 digits), the first letter is always C, D, E

Documents and other resources

Basic information about TIN

  • Local name:

    TRN - Tax Reference Number

  • Allocating institutions:

    Comptroller of Taxes

  • Allocation rules:

    Appointed with tax oblication

Identifier formats

  • CC00000

    up to 7 characters (2 letters + up to 5 digits), the first letter is always C, D, E

Documents and other resources

  • On the tax return (online form), and on other documents for the communication with the tax authority.

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