The registration deadline of 31 July, 2017 for both CRS and FATCA registrations has now passed. Financial Institutions that missed the deadline need to focus on completing their registration as a matter of priority as the Cayman TIA may impose sanctions. Those that have completed registration need to now move onto reporting for 31 August...

{The AEOI Portal will continue to accept late registrations or variations after the deadline and noncompliant CFIs must complete the necessary registration or variation with urgency, and proceed to submit any necessary reporting before the reporting deadline of 31 August 2017 to avoid further breaches and the potential levying of additional fines.

http://www.tia.gov.ky/pdf/AEOI_News_&_Updates.pdf