A financial institution (FI) can locate its Global Intermediary Identification Number (GIIN) through its FATCA Registration account. Once the registration is approved, the FI can log into its FATCA Registration account and view its GIIN under the account information section of the home page. Additionally, lists of branches, members, sponsored entities, or sponsored subsidiary branches associated with the account can be downloaded with their GIIN from the Download Registration Tables on the account home page. If the FI has added branches to the registration, each approved branch will also be issued a GIIN, which can be viewed in Question 9 of the Registration or by using the Branch Information Link from the home page. Lead FIs can view and download member FI information, including GIINs, from the Member Information Link on the home page. For sponsoring entities, separate GIINs will be assigned to their approved sponsored entities and sponsored subsidiary branches listed on the FATCA account.
Sources:
Publication 5188 (7/2020)
Instructions for Form 8957 (06/2018)
Publication 5118 (07/2021)
Rev. Proc. 2017-16
Publication 5190 (2/2022)
