Full Guide to Import Customs Declaration and Clearance Process and Key Nodes

Import customs declaration and clearance is a key link in the foreign trade import chain.From pre-arrival preparation to final release and pickup,errors in any link may lead to delays,extra costs,or even inspection and detention of goods.Many enterprises in Shanghai have experienced 3-day customs clearance delays due to missing documents as they are not familiar with the clearance process.For example,Mr.He from an electronics company once reported that imported parts were delayed because he failed to prepare a copy of the 3C certification in advance.Today we will systematically sort out the core processes of import customs declaration and clearance,and explain how professional agency companies help enterprises avoid these problems.

1.Core Process Stages of Import Customs Declaration and Clearance

1.Pre-arrival: Document Preparation and Pre-audit (Goal: Ensure complete and error-free documents)

The goal of this stage is to prepare all required documents for customs clearance in advance,to avoid delays caused by incomplete documents after the goods arrive at the port.

Key actions include:

• Collect basic documents: bill of lading,invoice,packing list,contract,certificate of origin (if required),3C certification (if required),etc.
• Confirm the HS code of the goods: accurate classification is the premise of smooth customs clearance
• Pre-audit documents: Check for missing contents or errors,such as whether the invoice amount is consistent with the contract

Common problems:

• Incorrect HS code classification: For example,Mr.Liao,general manager of a garment company,once paid extra tariffs and faced inspection as he classified knitwear into woven garments
• 3C certification not processed in advance: Electronic products,automobile products and other goods require 3C certification,and missing certification will lead to direct detention of goods

Role of Zhongshen:

Supervisor Huang from Zhongshen will communicate with clients in advance,help clients confirm the accurate HS code based on goods information,and pre-audit all documents.For example,in 2025,Ms.Wen from a chemical company avoided the trouble of re-applying for documents after the goods arrived at the port,because Zhongshen found the inconsistency between the company name on the certificate of origin and the contract in advance and made timely correction.

2.Post-arrival: Declaration and Inspection (Goal: Complete declaration quickly and reduce inspection rate)

After the goods arrive at the port,declaration shall be submitted to the customs,and cooperation is required if the goods are selected for inspection.

Key actions:

• Electronic declaration: Submit all documents through the single window
• Pay tariffs/VAT: Calculated based on the tax rate corresponding to the HS code
• Cooperate with inspection: If selected,provide goods samples,descriptions and other materials as required

Common problems:

• Declared value inconsistent with customs valuation: For example,Mr.Zhuang from a furniture company once faced a 2-day delay due to tariff recalculation,as his declared value was lower than the customs reference price
• Incomplete documents during inspection: For example,failure to bring the product manual will lead to extended inspection time

Role of Zhongshen:

Zhongshen has a dedicated declaration team,who is familiar with the latest 2026 customs policies.For example,the team updated the declaration template in advance after the customs adjusted the declaration requirements for new energy products this year.If the goods are selected for inspection,Zhongshen’s on-site specialist will accompany the whole process and prepare all supporting documents.For example,in March 2026,Manager Li from a new energy company finished the inspection in only 1 hour,half of the regular time,as Zhongshen prepared the product test report in advance.

3.Release and Pickup (Goal: Pick up goods quickly and avoid port detention fees)

After the customs releases the goods,you can pick up the goods at the port or airport.Pay attention to the starting time of port detention fees.

Key actions:

• Confirm release: Check the release status through the single window
• Complete pickup procedures: Submit the release note,bill of lading and other documents
• Arrange transportation: Deliver the goods to the client’s warehouse

Common problems:

• Port detention fees incurred due to delayed pickup: For example,Mr.Zhang,general manager of a machinery company,once incurred 5,000 CNY in port detention fees because he forgot to pick up the goods
• Improper transportation arrangement: For example,failure to select appropriate vehicles leads to cargo damage

Role of Zhongshen:

Zhongshen will notify the client immediately after the goods are released,arrange cooperative transportation companies to pick up the goods,and remind the client of the free period for port detention fees.For example,the free storage period at Shanghai Yangshan Port is 7 days; In 2026,Mr.Zhang,general manager of a machinery company,avoided cargo damage during transportation and saved maintenance costs,as Zhongshen arranged special transport vehicles in advance.

2.Comparison between Self-operation and Zhongshen Agency Service

3.Core Value of Zhongshen Import Customs Clearance Service

Import customs declaration and clearance may seem to have a fixed process,but problems may occur in any link due to policy changes or document details.Zhongshen has been deeply engaged in the industry for more than 20 years.We are not only familiar with the latest 2026 customs policies,but also provide customized services based on the characteristics of goods in different industries,such as electronics,chemical industry,new energy and so on.For new energy products,for example,Zhongshen will confirm the latest 3C exemption policy in advance; for chemical products,we will help clients prepare the MSDS report.

Manager Li from a new energy company in Shanghai once said: "When we handled customs clearance on our own before,we faced a 5-day delay because we did not understand the latest declaration requirements for new energy products,which led to delayed order delivery.Later,we hired Zhongshen as our agency.Not only was the customs clearance fast,but they also helped us apply for partial tariff reduction and exemption,which saved us a lot of costs."

If you are a foreign trade enterprise in Shanghai and are troubled by the complicated procedures and multiple risks of import customs clearance,you may contact a professional agency company,which can help you complete customs clearance efficiently and save time and costs.