HMRC is phasing out its Customs Handling of Import & Export Freight (CHIEF) system during 2022 and from 1 October 2022 all declarations for import movements will have to be made through the new Customs Declaration Service (CDS). This is not optional – goods will be stuck at borders from 1 October unless the right CDS entries are submitted online by both importers and their freight agents/customs brokers.
Source BDO