Post Brexit trade agreements signed with the UK
Exporting from Great Britain (England, Wales and Scotland)
Prepare for Brexit - UK Government website about Brexit
Getting help from third parties
Common Transit Convention (CTC). Get ready to move goods between or through common transit countries including the EU.
National Export System (NES). Use the National Export System to make an export declaration
HMRC Online Customer Forum
The UK tariff link
How to get a UK EORI to trade with the EU
What is a deferment account