2026 Import Customs Clearance Full Process Guide: Documentation to Release Practice

2026 Import Customs Clearance Full Process Analysis: From Qualification Pre-verification to Port Release

As a customs clearance agent with 20 years of deep cultivation at Shanghai Port,we have seen too many enterprises suffer "hidden losses" due to unfamiliarity with the process: A German precision instrument importer paid an extra 120,000 yuan in tariffs due to missing the Certificate of Origin; A cosmetics company had their goods delayed for 20 days in commodity inspection due to incorrect HS code classification.The 2026 trade environment has become more complex,with new tariff preferences for RCEP member countries and adjustment of anti-dumping duty policies.Enterprises need to precisely control the entire customs clearance process.

1.Pre-import Customs Clearance Preparation: Document and Qualification Verification

Core Prerequisite: All documents must be consistent with the "three documents" (trade contract,commercial invoice,packing list).The 2026 new requirement is that imported food must provide electronic vouchers of "Entry Goods Inspection and Quarantine Certificate".

• 1.Basic Document List: Bill of Lading (B/L),Commercial Invoice,Packing List,Sales Contract,Certificate of Origin (CO/O Certificate).Among them,Certificate of Origin is a key voucher for RCEP tariff reduction,and needs to be filed in advance on the "International Trade Single Window".
• 2.Qualifications for Special Products:
  • Mechanical and electrical products: Must provide 3C certification (e.g.laptop computers,medical devices) or China Inspection Body (CIC) certificate (for imported used equipment)
  • Chemicals: Safety Data Sheet (SDS) must include the newly added "PFAS (Per- and Polyfluoroalkyl Substances) Detection Item" in 2026
  • Animal and plant products: Endangered species must provide CITES Appendix certificate,meat products must be accompanied by slaughter quarantine certificate
• 3.Enterprise Qualification Self-inspection: Import and export rights filing,Customs Registration Certificate (validity must cover the customs clearance date),E-port IC card status (2026 new "credit level" binding,dishonest enterprises may face a 50% increase in inspection rate)

2.Customs Valuation and Classification: 2026 Latest Supervision Logic

Typical Case: A Shanghai electronics factory imported semiconductor wafers with a declared unit price of $15,000 per piece.The customs deemed it lower than the average price of similar products.Finally,by providing "international market price report + original factory quotation + payment voucher",the supplementary tax amount was reduced from $800,000 to $120,000.

HS Code Classification Skills: The newly added "Functional Classification Method" in 2026: For example,a non-vacuum insulated thermos cup with intelligent temperature control is classified under 8211.90 (kitchen utensils) instead of 8201.10 (stainless steel tableware).Incorrect classification will directly lead to tariff difference (from 5% to 15%).It is recommended to submit classification application in advance through "Customs Commodity Classification Pre-classification System".

3.Commodity Inspection and Special Supervision: Animal and Plant Quarantine and 3C Certification

Frequent Issue: A cosmetics importer was judged as "incomplete ingredient description" by the commodity inspection bureau for not labeling the "preservative Methylisothiazolinone (MIT)" ingredient,and the label was forcibly destroyed with a fine of 30,000 yuan.

• 1.Key Points of Commodity Inspection Pre-verification:
  • Imported food: Must complete "Entry Animal and Plant Quarantine Approval" 72 hours before entry,the 2026 new requirement is "label electronic filing"
  • Cosmetics: Must complete Chinese label filing on the "Imported Cosmetics Filing Platform",providing ingredient list,usage method,etc.
  • Medical devices: 3C certification number must exactly match the "product model" on the customs declaration,vague labeling is prohibited
• 2.Inspection Risk Avoidance:
  • Submit "inspection reservation application" 48 hours before the goods arrive at the port,give priority to "first inspection after holidays" (low inspection volume)
  • Dangerous goods must be filed in advance on the "Dangerous Goods Declaration System",the 2026 new requirement is "MSDS version verification" (must be the latest version)

4.Tax Payment and Release and Subsequent Processes: Hidden Cost Control

Risk Warning: The newly added "Tariff Guarantee Insurance" pilot in 2026 allows enterprises to shorten tax payment time by taking insurance,but note:

• Demurrage fee: If customs declaration is not made within 14 days after the goods arrive at the port,the shipping company charges demurrage fee at $500-2000 per day
• Exchange order fee: When exchanging telex release B/L for original B/L,the freight forwarder may charge an additional $200-500 per order (need to agree in advance)
• Storage fee: Goods need temporary storage after inspection,$30-50 per cubic meter per day,it is recommended to plan the pickup route in advance

Post-release Notes:

• Timely apply for "Customs Release Certificate",the 2026 new "paperless release" eliminates the need for on-site stamping
• Electronic customs declaration must complete foreign exchange verification within 15 days,overdue may affect foreign exchange credit rating
• Special supervision goods (e.g.temporary storage in bonded warehouse) must complete monthly verification in "Bonded Logistics System"

5.2026 Policy Adaptation: RCEP and Anti-dumping Duty Warning

For imported goods from RCEP member countries,enterprises need to focus on:

• To enjoy tariff reduction,must meet "regional value component ≥40%" (standard of Australia,Malaysia,etc.)
• Certificate of Origin must be reviewed within 72 hours after upload on "International Trade Single Window"
• Newly added "Anti-dumping Warning System": For example,from March 2026,EU raised anti-dumping duty on Chinese stainless steel tableware from 12% to 18%

As a long-established customs clearance agent at Shanghai Port,our advantages are:

• Cross-port declaration in more than 20 ports nationwide,can link ports like Ningbo,Shenzhen,Tianjin to achieve "one pre-verification,nationwide release"
• Established "Risk Warning Database",providing special pre-verification services for the newly added "PFAS-related products" in 2026
• Directly connected to customs system to realize full-process visual tracking of "valuation-inspection-release",with average customs clearance time shortened by 40% compared to enterprises handling it themselves

The above content is based on the latest 2026 trade policies and practical experience.If you encounter specific problems in import customs clearance,please feel free to contact us for one-on-one consultation.