About LEI | Common Data File Formats

Level 1 Data: LEI-CDF Format



The business card information available with the Legal Entity Identifier (LEI) reference data, e.g. the official name of a legal entity and its registered address, is referred to as ‘Level 1’ data . It provides the answer to the question of ‘who is who’.

The LEI-Common Data File (CDF) format defines how LEI issuing organizations report their LEI and Level 1 reference data.

The standard was originally developed by the LEI Regulatory Oversight Committee and mandated for all LEI issuing organizations in August 2014. Subsequently, the Global Legal Entity Identifier Foundation (GLEIF) assumed the responsibility for maintaining the standard and developing it further.

To download the detailed specification documents available for the LEI-CDF format, refer to these dedicated GLEIF website pages:

Information on the transition from the LEI-CDF format version 1.0 to the LEI-CDF format version 2.1 is available here.

Code lists for use with the LEI-CDF
GLEIF maintains and publishes code lists defining approved values for some elements of the LEI-CDF. These are:

LEI-CDF Element Code List Description
LegalForm Entity Legal Form (ELF) Code; ISO Standard 20275 Resolves variant names for each valid legal form within a jurisdiction to a single code per legal form, per jurisdiction.
Version 1.0: Register (attribute of BusinessRegisterEntityID) Version 2.1: RegistrationAuthority Registration Authorities List Identifies a business registry in the jurisdiction of legal registration, or appropriate registration authority (e.g. one of the varieties of funds registered instead with financial regulators).

Please address questions on the LEI-CDF format to leidata@gleif.org.


How an LEI can help your business get fit for the future

  • Improved risk management.
  • Increased operational efficiency.
  • More accurate calculation of exposures.
  • Simplified regulatory reporting.
  • Ensured counterparties for any business process.
  • Unique counterparty identification globally.

Follow five easy steps to apply for an LEI number

  1. Review your LEI requirements.
  2. Explore your LEI issuer's website of choice.
  3. Provide your 'business card' information.
  4. Verify and submit your LEI request.
  5. Make payment.