Special Topics

Legal Entity Identifier (LEI)

WM Datenservice is Europe's largest issuing authority for the Legal Entity Identifier (LEI). Apply now for your LEI.

Tax information

The regulations on the flat rate withholding tax, which come into force on January 1, 2009, have a number of consequences for banks and the securities data they have to process.


The Markets in Financial Instruments Directive (MiFID II) 2004/39/EC became effective on January 3, 2018.

FAQ Data Maintenance

Our FAQs serve as a first point of contact for questions and can be used for internal training purposes at your facilities.