Last Updated on June 16, 2026 by Arnaud Collignon Collect all information required to register your Financial Institution with the IRS FATCA portal and obtain your Global Intermediary Identification Number (GIIN). 1 FI Information 2 Branches & EAG 3 RO & POC 4 Submit Before you begin: Gather your FI’s legal incorporation documents, local tax … Continue reading IRS GIIN Registration Service — FATCA Application for Financial Institutions