International Data Exchange Service (IDES) - Knowledge Base

FIs and HCTAs can learn how to Enroll using this online documentation. 


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Interactive Knowledge Base


International Data Exchange Service Interactive Knowledge Base Site

User Guides


International Data Exchange Service User Guide (PDF)

FATCA User Guide

Frequently Asked Questions:

IDES Frequently Asked Questions


Additional FAQs are available for FATCA - FAQs General, FATCA FFI List, and FATCA IDES Technical FAQs.

Additional Support


FATCA Compliance Help
  • If you have further questions about foreign financial institutions' compliance with the U.S. FATCA legislation, please submit your question.

FATCA Registration System Technical Support:
  • If you need system support for the online FATCA Registration, including help with login problems, error messages, and other technical issues, please submit your technical system problem.

  • The system technical support team cannot respond to tax law questions regarding the FATCA regulations.