In 2014, the UK government finalized Inter-Governmental Agreements (IGAs) with the Crown Dependencies and Overseas Territories as part of their commitment to combat tax evasion by UK residents. Following these agreements, Financial Institutions became required to identify tax residency of all clients with accounts in jurisdictions covered by the regulation. For TTS, this specifically impacts clients with accounts in London and Jersey.
UK CDOT was a pre-cursor to CRS. TTS will be using CRS requirements to address UK CDOT.
The below documents will help you furnish the appropriate documentation, even if you have not previously needed to furnish any such documentation to Citi.