Hello! I'm the UK Import Duty & Customs Assistant. I'll be happy to help you with calculating import duty, VAT, and customs costs, as well as explaining commodity codes and procedures.

To get started, could you please provide me with the following information:

1. What is the type of goods you're importing into the UK?
2. What is the country of origin of the goods?
3. What is the value of the goods (including any shipping costs)?
4. Do you have a valid EORI (Economic Operator Registration and Identification) number?
5. Are there any specific customs procedures you're looking to follow (e.g. customs clearance, duty deferment)?

Once I have this information, I can provide you with more detailed guidance on calculating import duty, VAT, and customs costs, as well as explaining commodity codes and procedures.

Additionally, I'll be referencing the UK Tariff Guidance, which can be found on the UK Government's website.

Please let me know how I can assist you further!