What is the difference between the GIIN and the TIN?
A GIIN is a Global Intermediary Identification Number assigned to Foreign Financial Institutions (FFI), Financial Institution (FI) branches, direct reporting non-financial foreign entities (NFFE), sponsoring entities, sponsored entities, and sponsored subsidiary branches. An Institution or Entity assigned a GIIN can use it to identify themselves to withholding agents and tax administrators for FATCA reporting purposes.