Documentary Customs Declaration: A Complete Guide for Cross-Border Sellers 

August 15, 2025
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When you’re running a cross-border e-commerce business—whether it’s on Amazon, Walmart, or your own Shopify store—getting your products from China to customers overseas involves more than just packing boxes and choosing a shipping method. One of the most critical, yet often overlooked, aspects of international shipping is documentary customs declaration

For manufacturers, retailers, and e-commerce sellers looking to scale globally, understanding how customs declarations work in China can save you from costly delays, penalties, or even seized shipments. In this blog, we’ll break down what documentary customs declaration is, why it matters, who needs to handle it, and how you can ensure smooth clearance for your goods. 

What Is a Documentary Customs Declaration? 

documentary customs declaration is an official document submitted to customs authorities that provides details about imported or exported goods. It includes information such as: 

  • Product description (name, material, usage) 
  • Harmonized System (HS) code (a standardized classification for customs) 
  • Quantity and value of goods 
  • Country of origin (e.g., made in China) 
  • Shipping method (air freight, sea freight, express courier) 

This document ensures compliance with international trade regulations and helps customs officials assess duties, taxes, and any restrictions on the shipment. 

Why Is a Proper Customs Declaration Important? 

Failing to submit accurate customs documentation can lead to: 

✅ Delays in shipping – Customs may hold your goods for inspection. 
✅ Additional fees – Incorrect declarations can result in fines or unexpected duties. 
✅ Seizure of goods – Prohibited or misdeclared items may be confiscated. 

For cross-border e-commerce sellers, a smooth customs process means faster delivery times, happier customers, and fewer logistical headaches. 

Key Documents Needed for Customs Clearance 

When shipping from China, you’ll typically need: 

  1. Commercial Invoice – Details the transaction between buyer and seller. 
  1. Packing List – Specifies weight, dimensions, and contents of each package. 
  1. Bill of Lading (BOL) or Air Waybill (AWB) – Proof of shipment contract. 
  1. Certificate of Origin (COO) – Confirms where the goods were manufactured. 
  1. Import/Export License (if required for restricted items). 

For Amazon FBA sellers, Walmart, or Shopify merchants, working with a reliable China freight forwarder can simplify this process. 

Common Customs Declaration Mistakes to Avoid

❌ Incorrect HS codes – Using the wrong classification can lead to higher tariffs or delays. 
❌ Undervaluing goods – Misdeclaring product value to save on duties is illegal and risky. 
❌ Missing or incomplete paperwork – Always double-check documents before submission. 
❌ Ignoring restricted items – Some products (e.g., batteries, liquids) require special permits. 

Partnering with an experienced China shipping agent can help you avoid these pitfalls. 

Final Thoughts 

A proper documentary customs declaration is essential for hassle-free international shipping. Whether you’re a cross-border e-commerce seller, manufacturing company, or retailer, understanding these requirements helps avoid costly delays. 

Need help with China logistics and customs compliance? Contact Easy China Warehouse today for seamless shipping solutions!