What Is Customs Clearance in the UK? Customs clearance in the UK is the formal process of declaring goods to HM Revenue & Customs (HMRC) when they are imported into or exported from the United Kingdom. It ensures that: Since Brexit, customs clearance is required for UK–EU trade as well as trade with non-EU countries. … Continue reading Customs Clearance UK: Import & Export Procedures, Documents & Costs (2026 Guide)