When it comes to international shipping, paperwork might not be the most exciting part of the process – but it’s one of the most important.
Incorrect or missing documents can lead to customs delays, unexpected costs, or even shipments being refused entry. The good news? Once you understand the essentials, it all becomes far more manageable – especially with the right freight partner guiding you.
Here’s your complete guide to UK import and export documentation.
Why Documentation Matters So Much
Every international shipment must meet the legal and customs requirements of both the exporting and importing countries. Documentation:
- Confirms what the goods are
- Declares their value
- Shows where they came from
- Ensures duties and taxes are correctly calculated
- Proves compliance with regulations
In short, paperwork keeps your goods moving smoothly across borders.
The Core Documents You’ll Almost Always Need
1. Commercial Invoice
This is one of the most important documents in international trade.
It includes:
- Seller and buyer details
- Description of goods
- Quantity and value
- Currency used
- Country of origin
- Incoterms (shipping terms)
Customs authorities use this to assess duties and VAT, so accuracy is essential.
2. Packing List
Think of this as the detailed breakdown of what’s physically inside the shipment.
It shows:
- Number of packages
- Weight and dimensions
- Contents of each carton or pallet
This helps customs, carriers, and warehouses handle your shipment correctly.
3. Bill of Lading (Sea) / Air Waybill (Air)
These are transport documents issued by the carrier.
Bill of Lading (B/L) – Used for sea freight. It acts as:
- A receipt for the goods
- A contract of carriage
- In some cases, a document of title
Air Waybill (AWB) – Used for air freight. It confirms shipment details and allows tracking, but it’s not a document of title like a B/L.
Customs Declarations
For UK importers and exporters, customs declarations are now required for most international movements, including UK-EU trade.
These declarations include:
- Commodity (HS) codes
- Value of goods
- Origin of goods
- Procedure codes
- Duties and VAT information
Getting commodity codes right is critical – they determine duty rates and whether any restrictions apply.
This is an area where a freight forwarder or customs agent can save you a lot of time (and costly mistakes).
Certificate of Origin
A Certificate of Origin confirms where goods were manufactured or produced. Some countries require this to:
- Apply correct duty rates
- Meet trade agreement rules
- Allow goods to enter the country
Under certain trade agreements, proof of origin can reduce or remove duties – but only if documentation is completed correctly.
Licences & Special Certificates
Some goods can’t be shipped freely without additional paperwork. Examples include:
- Food and agricultural products
- Chemicals
- Medical supplies
- Dual-use or controlled goods
- Animal and plant products
These may require export licences, health certificates, or inspection documents depending on the product and destination country.
Duties, VAT & Incoterms
Your documents must clearly state the Incoterms (such as EXW, FOB, CIF, DAP, DDP). These define:
- Who pays for transport
- Who is responsible for customs clearance
- Who covers duties and taxes
- Where risk transfers from seller to buyer
If Incoterms are unclear or used incorrectly, it can lead to disputes, delays, or unexpected bills.
Common Documentation Mistakes to Avoid
Even experienced businesses can run into issues. The most common problems include:
- Incorrect commodity codes
- Undervaluing goods
- Mismatched information across documents
- Missing origin details
- Using the wrong Incoterms
Small errors can cause big delays – especially with tighter border controls and compliance checks.
How the Right Freight Partner Helps
Managing documentation doesn’t have to be overwhelming.
At KranLee, we work closely with our customers to ensure paperwork is accurate, compliant, and submitted on time. From checking commercial invoices to guiding you on commodity codes and customs procedures, we help remove the guesswork from global trade.
Because when documentation is right, everything else flows much more smoothly.
Need Help With Your Import or Export Paperwork?
If you’re unsure which documents you need or want peace of mind that everything is compliant, our team is always happy to help. With the right support, international shipping becomes far less complicated, and a lot more predictable.