Hi,
EORI is provided at the time when Import/Export declaration is submitted. If you are using a third party customs agent or express operator for customs declarations, they will request the information prior to the declaration.
Please see below guidance on the thresholds on customs value and charges.
Tax and customs for goods sent from abroad
If import VAT is applicable it will be charged and paid at the time of importation.
The sales VAT and import VAT are two different of taxes. You will only charge and account for sales VAT if you are VAT registered business.
For more information sales VAT, please contact VAT helpline.
VAT: general enquiries
Thank you.