A Comprehensive Analysis of Import and Export Cargo Customs Clearance Process, Thoroughly Explain Core Links in One Go

In 2026,Shanghai’s foreign trade market remained active,with both cross-border e-commerce B2B exports and general trade import and export volumes maintaining double-digit growth.As a key link connecting international transportation and domestic/international markets in the foreign trade chain,customs clearance directly determines whether goods can be delivered on time and whether costs can be effectively controlled.Many foreign trade enterprises have suffered order penalty fees due to 1-3 days of delays caused by unfamiliarity with customs clearance procedures,or incurred additional expenses due to document errors.Combining Zhongshen’s 20 years of practical experience,this article will systematically sort out the entire customs clearance process for import and export cargo to help you avoid common pitfalls.

Customs Clearance Process for Export Cargo (Core Stage Breakdown)

1.Preparatory Work: Document and Cargo Verification

Objective: Ensure complete documents and cargo comply with export regulations to avoid being rejected during customs declaration due to inconsistent information.

Key Actions:

• Collect basic documents: packing list,commercial invoice,trade contract,pre-recorded customs declaration data,certificate of origin (if required)
• Verify cargo information: whether the HS code is accurate,whether the product description matches the documents,and whether it is subject to legal inspection (such as food,electronic products)
• Confirm packaging compliance: whether wooden packaging has been fumigated (fumigation certificate required),whether dangerous goods packaging meets UN standards

Common Issues:

• Incorrect HS code classification (for example,classifying Bluetooth headsets into ordinary audio equipment,leading to tariff calculation deviations)
• Failure to apply for the certificate of origin in advance (affects overseas customers’ access to import country tariff preferences)
• Unfumigated wooden packaging (required by customs to destroy or reprocess,causing 2-3 days of delay)

Zhongshen’s Services:

• Provide HS code pre-classification service (updated the latest tariff schedule in 2026),with an accuracy rate of over 99%
• Assist in applying for certificates of origin such as GSP Form A,RCEP Form E,etc.with issuance within 3 working days
• Pre-review wooden packaging fumigation certificates to avoid inspection delays caused by packaging issues

2.Customs Declaration: Electronic Data Submission and Review

Objective: Pass the customs electronic document review smoothly and enter the inspection stage.

Key Actions:

• Submit electronic customs declaration data via the "Single Window"
• Customs system automatically reviews documents (machine review),triggers manual review if there are questions
• Supplement and submit regulatory documents (such as export licenses,commodity inspection clearance forms)

Common Issues:

• Inconsistency between electronic data and paper documents (for example,invoice amount does not match the customs declaration)
• Regulatory documents not uploaded simultaneously during declaration (such as commodity inspection clearance forms required for exported food)
• Deviation of declared product quantity from actual cargo quantity by more than 5% (questioned by customs)

Zhongshen’s Services:

• Dedicated personnel responsible for Single Window declaration,familiar with the latest 2026 customs declaration rules
• Real-time follow-up on document review status,respond within 1 hour and supplement materials if there are questions
• Pre-communicate with customs for sensitive goods (such as chemicals,lithium batteries) and provide compliant declaration suggestions

3.Inspection and Release: On-site Cargo Verification

Objective: Pass customs inspection,obtain release instructions,and arrange shipment/loading.

Key Actions:

• Customs inspection: divided into machine inspection (X-ray scan),manual inspection,and random spot check (the spot check rate in Shanghai Customs District is about 12% in 2026)
• After passing inspection,customs issues a "Release Notice"
• Arrange cargo shipment/loading and connect with international transportation

Common Issues:

• Discrepancy found between cargo and document description during inspection (for example,actual packaging is plastic,but documents state wooden packaging)
• Inspection delay (no inspection windows on weekends or holidays,leading to missed shipping schedules)
• Dangerous goods without compliant labels (required by customs to rectify)

Zhongshen’s Services:

• Advise customers of the inspection probability in advance and prepare for stock preparation (such as reserving spare packaging)
• Arrange dedicated personnel to accompany inspections and coordinate on-site problem solving (such as adding dangerous goods labels)
• Utilize Zhongshen’s customs green channel (for long-term cooperative compliant enterprises) to reduce inspection time by more than 30%

Customs Clearance Process for Import Cargo (Core Stage Breakdown)

1.Pre-arrival Preparation: Document and Qualification Verification

Objective: Prepare required import documents in advance,ensure complete qualifications,and avoid inability to clear customs after cargo arrives at the port.

Key Actions:

• Confirm import qualifications: whether import and export rights are required,whether quotas apply (such as agricultural products,crude oil)
• Collect documents: bill of lading,commercial invoice,trade contract,packing list,customs declaration form,commodity inspection clearance form (if required),import license (if required)
• Confirm tariff rates: whether to enjoy free trade agreement preferences (such as RCEP,China-South Korea Free Trade Agreement)

Common Issues:

• Failure to apply for import quotas in advance (for example,import of rice requires quotas,leading to cargo being detained at the port after arrival)
• Incorrect bill of lading endorsement (straight bill of lading not properly endorsed,making it impossible to pick up goods)
• Failure to apply for free trade agreement preferential tariff rates (paying 10%-15% more tariffs)

Zhongshen’s Services:

• Assist customers in verifying import qualifications,provide agency qualifications if they do not have import and export rights
• Apply for import quotas in advance (for agricultural products,chemical products,etc.),shortening the cycle to 5 working days
• Sort out free trade agreements such as RCEP,help customers apply for tariff reductions,saving an average of about 12% of costs

2.Customs Declaration and Tariff Payment

Objective: Complete declaration and pay tariffs and VAT smoothly,and enter the inspection stage.

Key Actions:

• Declare via the Single Window,customs issues a "Tariff Payment Notice"
• Pay tariffs and VAT (via bank transfer,third-party payment)
• After customs confirms tax receipt,arrange inspection

Common Issues:

• Incorrect tariff calculation (for example,failing to deduct insurance fees for imported goods)
• Delayed payment leading to late fees (calculated at 0.5‰ per day,late fees reach 5% after 10 days of overdue)
• Deviation of declared product value from customs valuation by more than 10% (questioned by customs)

Zhongshen’s Services:

• Accurately calculate tariff amounts and verify whether free trade agreement preferential tariff rates apply
• Provide tariff payment agency services to avoid delays caused by customers’ unfamiliarity with payment procedures
• If there is a deviation between customs valuation and declared value,assist in providing third-party valuation reports for review

3.Inspection and Pickup: Delivery After Cargo Release

Objective: Pick up goods smoothly and arrange domestic transportation to the destination.

Key Actions:

• Customs inspection (similar to export,spot check rate is about 15%)
• After release,pick up goods at the port/airport with the "Release Notice"
• Arrange domestic transportation (land transport,express delivery) to achieve door-to-door delivery

Common Issues:

• Cargo damage found during pickup (failed to apply for commodity inspection appraisal in time,unable to claim from freight forwarder)
• Overdue port storage fees (Shanghai Port’s free storage period is generally 3 days,with a charge of 50 yuan per cubic meter per day for overdue periods)
• Imported food without Chinese labels (required by customs to rectify,causing 1-2 days of delay)

Zhongshen’s Services:

• Communicate with the port in advance about pickup time to avoid overdue storage fees
• If cargo is damaged,assist in applying for commodity inspection appraisal as a claim basis
• Provide Chinese label design and review services (for imported food,cosmetics)

Common Customs Clearance Pitfalls and Zhongshen’s Solutions

• Pitfall 1: Incorrect HS Code Classification → Zhongshen’s pre-classification service combines the 2026 latest tariff schedule,with an accuracy rate of over 99%,avoiding tariff deviations
• Pitfall 2: Unclaimed Tariff Preferences → Sort out 12 free trade agreements such as RCEP,help customers apply for 10%-15% tariff reductions,saving over 200,000 yuan annually
• Pitfall 3: Inspection Delay → Dedicated personnel accompanying inspection + green channel,reducing inspection time by 30%,avoiding missed shipping/flight schedules
• Pitfall 4: Incomplete Documents → Review all documents 7 days in advance,avoid customs declaration rejection,save time for repeated declarations

In 2026,competition in the foreign trade market has intensified,and customs clearance efficiency directly affects enterprises’ order delivery capabilities and cost control.Zhongshen has been deeply engaged in the industry for 20 years,taking Shanghai as the core and radiating across the country,having helped over 1,000 foreign trade enterprises improve customs clearance efficiency by more than 30% and avoid losses of over 5 million yuan.If you encounter questions during the customs clearance process,you can consult Mr.Ge,senior manager of Zhongshen,who will provide customized solutions based on your cargo type (such as cross-border e-commerce,general trade,dangerous goods).Choose a professional foreign trade agency to make customs clearance more worry-free.