🏛️Legal Entity Identifier

NEW

Also known as: LEI

A 20-character alphanumeric code that uniquely identifies entities participating in financial transactions globally.

DESCRIPTION

The Legal Entity Identifier (LEI) is a global ID standard for uniquely identifying legal entities in financial transactions. Governed by ISO 17442 and managed by the Global Legal Entity Identifier Foundation (GLEIF), LEIs improve transparency, reduce risk, and support regulatory reporting. LEIs link to reference data such as legal name and address. Many jurisdictions mandate LEIs for trading and reporting under regimes like MiFID II and EMIR. Integrating LEI into master data enhances counterparty resolution and compliance processes.

ALTERNATIVE DEFINITIONS

GLEIF

The Legal Entity Identifier (LEI) is a 20-digit, alpha-numeric code that connects to key reference information that enables clear and unique identification of legal entities participating in financial transactions.

Highlights the reference data linkage and global identification purpose.

Source

ISO

ISO 17442 specifies the elements of an identification system for legal entities—known as the Legal Entity Identifier (LEI)—to uniquely identify parties to financial transactions.

Defines the standard’s scope and uniqueness for financial parties.

Source

ESMA

The Legal Entity Identifier (LEI) is a unique 20 character alpha-numeric code that identifies legally distinct entities that engage in financial transactions.

Regulatory emphasis on uniqueness and applicability to legal entities.

Source

RELATED TERMS

ISO 17442 GLEIF Regulatory Reporting MiFID II Counterparty Identification KYC Bayesian Information Criterion Entity Master Data Financial Transactions Data Quality

COMPETING TERMS

Business Identifier Code Global Location Number

KNOWLEDGE AREAS

Data Privacy & Compliance Data Management Data Governance Reference & Master Data

TARGET AUDIENCE

Data Governance Manager Data Privacy Officer Chief Data Officer Information Analyst Data Steward

EXTERNAL SOURCES

• Wikipedia - Legal Entity Identifier
• GLEIF - Official overview of LEI
• ISO - ISO 17442 standard description
• Bank for International Settlements - Policy paper on global LEI system

TOP QUESTIONS

Why is the Legal Entity Identifier important for data governance?

LEI provides a consistent global identifier, reducing duplicate records and enabling accurate counterparty resolution across systems and jurisdictions.

Category: Relevancy

Which regulations require the Legal Entity Identifier?

Regimes like MiFID II, EMIR, and Dodd-Frank often require LEIs for transaction reporting and trade identification.

Category: Requirements

How is LEI data maintained?

LEIs are issued by Local Operating Units and validated annually, ensuring up-to-date reference data for legal entities.

Category: Management

What is a common misunderstanding about LEI?

LEI does not replace internal identifiers; it complements them for external reporting and interoperability.

Category: Misunderstanding

What are the risks of not using LEI?

Risk of reporting errors, regulatory penalties, and poor counterparty matching in financial systems.

Category: Risks

How does LEI relate to master data management?

LEI acts as a golden key for entity records, improving deduplication, matching, and lineage in MDM.

Category: Example

What is a competing identifier to LEI?

BIC identifies banks for messaging; LEI identifies legal entities broadly and is more universal.

Category: Alternatives

How do you integrate LEI into systems?

Map LEI to entity records, synchronize via GLEIF API, and enforce annual validation checks in data quality rules.

Category: Management

What metadata accompanies an LEI?

Legal name, addresses, ownership information (Level 2), and registration status support transparency and validation.

Category: Definition