Brexit Finally Happens

Although the UK left the customs union of the European Union (EU) on the at 11.00 p.m. on 31 December 2020, Border Force and HM Revenue & Customs have not exercised any significant controls on imports from the EU. Finally, with effect from 1 January 2022, it has been announced that importers will be required to make actual import declarations when they enter their goods, rather than be allowed 175 days. Also, importers will have to lodge health certificates from this time and be prepared for physical inspections from 1 July 2022.

https://www.gov.uk/government/news/government-sets-out-pragmatic-new-timetable-for-introducing-border-controls