Starting January 1, 2021, Portuguese exports to the UK will face customs duties on 61% of goods, with 41% attracting duties exceeding 5% or specific duties. The list of exempt goods includes medicines, chemicals, and cork. In response, the UK will progressively reintroduce customs controls and procedures in three phases starting in January 2021, with all products subject to customs declarations and duties by July 2021. This situation arises due to the UK's departure from the EU, ending the principle of free movement of goods and potentially disrupting bilateral trade benefits worth 386 billion euros annually. Despite efforts to negotiate a future economic relationship, the lack of a free trade agreement by year-end threatens to revert to national and international rules for trade with the UK, marking a significant shift from the current frictionless trade within the EU.