Full Process Guide for Import Customs Brokerage (2026 Edition)

Full Process Guide for Import Customs Brokerage (2026 Edition)I have seen far too many enterprises stumble due to unfamiliarity with the import customs brokerage process: one client imported precision instruments from Germany,but due to incorrect HS code classification,the shipment was delayed by customs inspection for 12 days,incurring an additional 30,000 RMB demurrage fee.Another chemical importer faced port detention of its goods because the MSDS report was not updated in line with the 2026 GHS standards.The root cause of these problems is insufficient control over process nodes.As a practitioner with 20 years of experience in import customs brokerage,I will break down the practical operations of customs brokerage at Shanghai ports from the dual perspectives of access permit and commodity inspection.### I.Agency Appointment and Document Preparation: Clarifying Responsibility Boundaries as the PremiseThe first step of import agency is to sign an <Customs Brokerage Power of Attorney> with Zhongshitong,to clarify the division of responsibilities under trade terms such as EXW/FOB/CIF.For example,under FOB terms,the overseas seller shall be responsible for booking shipping space,and the domestic broker is only responsible for customs declaration; under CIF terms,the broker will simultaneously follow up on documents such as ocean bill of lading and insurance certificate.**Core Document List (All items are mandatory):**<ul>- Commercial documents: contract,commercial invoice,packing list (all information shall be fully consistent with the bill of lading,and customs inspection for "three-document matching" will be stricter in 2026)- Transport documents: ocean bill of lading (pay attention to the difference in right of delivery between straight bill of lading and order bill of lading),waybill- Supervision documents: import license (if applicable),certificate of origin (tariff reduction available for goods from RCEP member states),customs brokerage power of attorney**New Requirements in 2026:** Cross-border e-commerce import requires additional electronic order and payment note; goods stored in bonded zones need to provide "bonded warehouse warehousing receipt" to avoid inspection triggered by discontinuous logistics information.### II.HS Code Declaration and Classification: Accuracy as the Key to Clearance EfficiencyA machinery importer once wrongly declared "automatic lathe" as "manual tool",resulting in the tariff rate jumping from 15% to 25%.The correct practice is to complete the "six-step classification method" before customs brokerage:

• Confirm the function of the commodity (lathe belongs to "metal processing machinery")
• Verify the material (dominated by alloy steel)
• Match the tariff item number (8456.10.00 corresponds to automatic lathe)
• Cross-check declaration elements (brand "XX",model "A-100" shall be consistent with the actual product)
• Refer to the General Rules for the Interpretation of the Harmonized System (follow the principle of classification giving priority to the later heading)
• Apply for customs classification ruling in advance (3-5 working days are required)

**Declaration Element Self-Check Form (Key Inspection Items in 2026):**

### III.Customs Price Verification and Inspection Response: Practical Skills to Resolve Price QueryCustoms price verification is the "high-pressure zone" in customs brokerage.In 2026,the new customs price verification model adds the function of "historical transaction price matching".If the declared price deviates by more than 15% from the import price of same model goods in the past 3 years,key verification will be triggered.One chemical importer’s declared price was lower than the customs warning threshold,and we assisted to supplement "factory price certificate","third-party appraisal report",and finally released the goods through price consultation.**Three Steps for Price Verification Response:**

• Prepare "price proof chain" in advance: contract,payment voucher,insurance certificate,freight invoice (CIF price needs to be split)
• Select applicable valuation method: prioritize transaction value method (need to prove no associated relationship with similar goods in customs special supervision zones)
• Apply for advance price ruling when necessary: submit written application 10 working days in advance to avoid on-site inspection delay

**Inspection Risk Avoidance:**<ul>- Statutory inspection commodities need to make reservation for commodity inspection 3 working days in advance,to avoid extra cost caused by unreserved inspection- Dangerous goods (such as coatings,batteries) need to be stored separately.In 2026,the inspection rate for dangerous goods at Shanghai Port increases to 20%,and mixed storage will lead to direct return shipment- Animal and plant products shall be attached with <Entry Animal and Plant Quarantine Permit>,and goods without permit will face a fine of 50,000 to 100,000 RMB### IV.Special Supervision and Permit Application: Differential Treatment for General Cargo and Special Categories**General Cargo Agency Process (3-day Clearance Standard):**

• Pre-inspection of commodity inspection: statutory inspection commodities (such as toys,cosmetics) need to complete "commodity inspection" in advance,and provide quality inspection report
• Customs declaration submission: after the broker inputs information into the system,customs will automatically assign the declaration form to the document examination center
• Tax payment: online payment via "Single Window" is supported,and the total sum of tariff and value-added tax can be calculated in real time
• Release and inspection: non-control goods are released on the same day,and goods under control require response within 24 hours

**Key Operations for Special Categories:**

• **Mechanical and Electrical Products**: Need to apply for "3C Certification" in advance,items involving "pressure vessel" need to provide "Special Equipment Manufacturing License"
• **Food Products**: Meat products need to provide "Entry Animal and Plant Quarantine Certificate",new requirement for uploading "cold chain traceability code" will be implemented in 2026
• **Endangered Species**: Ivory products,mahogany furniture etc.need to apply for <Permit for Import of Endangered Species>,otherwise the goods will be confiscated directly

**2026 Policy Update:** The single transaction limit for cross-border e-commerce retail import rises to 5000 RMB,but combined declaration is required.Goods with value exceeding 5000 RMB shall be declared as ordinary goods,and can not go through the postal tax channel.### V.Risk Early Warning and Hidden Cost Control: Core Value of Customs BrokerOne importer once fell into the "demurrage fee" trap,failing to pick up the goods within 3 days after the arrival of the shipment,which generated 500 RMB demurrage fee per day.Zhongshitong avoids such risks through the "three synchronization" mechanism:

• Shipping schedule synchronization: track the status of bill of lading 3 days before the arrival of goods
• Document synchronization: review all documents in advance to avoid delay caused by "inconsistency between documents"
• Tax payment synchronization: notify the client to pay tax immediately after the customs declaration form is reviewed,to avoid interest loss

**Must-see Risk List:**<ul>- **Compliance Red Line**: Inconsistency between declaration elements and actual goods (e.g.missing preservatives in the ingredient list of cosmetics) will lead to a fine of 2000 to 10000 RMB- **Hidden Costs**: Document exchange fee (150-300 RMB per copy),inspection service fee (500-800 RMB per time),port demurrage fee (charged by day for goods unclaimed after the free period)- **Exchange Loss Risk**: Failing to lock exchange rate in advance (RMB to EUR fluctuation reaches ±3% in 2026),it is recommended to adopt "forward foreign exchange settlement + partial payment by installments"### VI.2026 Customs Clearance Trends and SuggestionsWith the deepening of RCEP tariff reduction policy,import customs brokerage shall focus on "rules of origin":

• Meet the Regional Value Content (RVC) requirement (e.g.auto parts need to meet 40% regional value)
• Authorized Economic Operator (AEO) certified enterprises can enjoy the convenience of "two-step declaration"
• The Shanghai Port "Single Window" adds new functions of "direct release at ship side" and "two-step declaration",which can save 2-3 working days for customs brokerage services

**Practical Suggestion:** Complete "three confirmations" before import:

• Confirm HS code and declaration elements (the official customs classification advance ruling system is available for free use)
• Confirm that all supervision conditions (such as 3C certification,import permits) are complete
• Confirm transportation method (submit air waybill 3 working days in advance for air freight to avoid delay)

Import customs brokerage is a "systematic project".From document preparation to inspection,from price verification to release,every link may cause full-process delay due to minor detail error.With 20 years of practical experience at Shanghai ports,Zhongshitong can shorten the clearance cycle of general cargo to 3-5 working days,and 7-10 working days for special commodities,ensuring a win-win result of compliance and efficiency.