HMRC has set out three steps that businesses can take to minimise potential distruption.
The first step is to register for an EconomicOperator and Registration Identification (EORI) number, which UK businesses that have only ever traded inside the EU will not have.
If the UK leaves the EU without a deal, businesses willbe unable to continue trading with the EU without an EORI number, however HMRC figures show that so far just 17% of affected businesses have registered. Have you registered for yours? Apply here: https://www.gov.uk/eori
After getting an EORI number, businesses are advised to take the second step and consider how they want to make customs declarations and appoint a customs agent if they want someone else to do it.
For businesses that import goods into the UK from the EU using roll-on roll-off locations, they can take a Third step and register for new Transitional Simplified Procedures (TSP). Apply here: https://www.gov.uk/guidance/register-for-simplified-import-procedures-if-the-uk-leaves-the-eu-without-a-deal
These will allow businesses to import without having to make a full customs declaration at the border and postpone paying any import duties.
Standard customs declarations will apply for imports using other locations, and for exports. Prepare your business for exit and visit this link: https://euexitbusiness.campaign.gov.uk/?_ga=2.32362494.1944694412.1551698805-315955148.1551698805