The Taxation (Implementation) (International Tax Compliance) (Mandatory Disclosure Rules for CRS Avoidance Arrangements and Opaque Offshore Structures) (Jersey) Regulations 2020 are expected to come into force shortly. The regulations will primarily affect promoters and service providers of certain arrangements, implementing a 30-day window to report disclosable arrangements to the Comptroller of Revenue. Failure to comply may lead to financial penalties and, in some instances, criminal penalties.