---
title: "What Core Compliance Procedures and Document Requirements Must Be Followed for Customs Declaration of Transit Trade?"
description: "When carrying out transit trade，enterprises often encounter customs clearance delays，cargo port detention or compliance risks，and even face customs fines and credit disciplinary actions due to unclear understanding of declaration procedures，document requirements and payment and receipt matching rules. Through full-link operations including pre-audit of the full set of compliance documents，precise connection of core declaration nodes，and formulation of complete abnormal response plans，the complia..."
url: "https://www.sh-zhongshen.com/en/qa/transit-trade-customs-declaration-compliance-procedures-documents.html"
language: "en"
type: "Q&A"
category: "Entrepôt Trade Q&A"
datePublished: "2026-06-19"
dateModified: "2026-06-19"
brand: "Zhongshen Trading China"
answerCount: 10
---

# What Core Compliance Procedures and Document Requirements Must Be Followed for Customs Declaration of Transit Trade?

## Question

 I am the manager of a foreign trade company in Shanghai specializing in precision electromechanical accessories. Last week, we just concluded a transit trade order: we will purchase a batch of automotive sensors from Malaysia and re-export them to our long-term cooperative customer in Brazil. I heard from peers before that a friend filled in the wrong trade method in the transit trade declaration link, which caused the cargo to be detained at the Hong Kong transit port for 12 days. The port detention fee and container demurrage fee alone cost nearly 80,000 yuan, and he almost lost the long-term customer in Brazil. I am very anxious now. Our company is operating transit trade for the first time, and we do not know what compliance documents to prepare in advance, how to connect with freight forwarders and customs at core nodes during declaration, and whether there is an emergency plan in case of abnormal declaration. We are afraid of making mistakes that lead to delivery delay, cost overrun, and even affect the company's customs credit rating, so we would like you to provide clear declaration operation guidelines. 

## Answers
                            
### Answer 1 — Best Answer

First，for pre-document audit details，you need to check **three sets of core compliance documents** in advance: first，the transit trade contract marked with "cargo is for transit only，not entering Chinese customs territory"，second，the ocean bill of lading marked with "transit" and with the first and last leg consignors and consignees corresponding to the transit entity，third，the certificate of origin and commercial invoice completely consistent with the cargo information. All documents should be submitted to the customs for pre-audit 3 working days in advance to avoid declaration delay caused by document defects.

For the connection of core nodes，it is necessary to ensure that the customs broker and the transit port freight forwarder operate synchronously: 24 hours before the cargo arrives at the port，the customs broker completes the electronic declaration，and the transit port freight forwarder updates the transit manifest synchronously，when declaring，you need to accurately select **"Transit Goods" (customs supervision code 0110)** in the "Trade Method" column，and note the transit port，destination port and final consignee information，so as to achieve precise matching between the customs declaration form and the manifest information.

For the abnormal response plan，if the declaration is rejected by the customs due to inconsistent documents，you need to supplement and revise the documents and re-declare within 4 hours，if you encounter customs inspection，you need to immediately provide the full set of supporting materials for transit trade，such as first and last leg transportation contracts and customer orders，to avoid being misjudged as general trade.

After the final compliance implementation，you need to keep the full set of documents for at least 3 years to ensure that complete compliance chain evidence can be provided during subsequent customs audits，so as to maintain the enterprise's customs credit rating.

**status:** accepted
**Author:** Andy Guo
**Date:** 2026-06-19

### Answer 2

When declaring transit trade, you need to focus on the customs valuation logic and the closed logic loop of the customs declaration form. First, the cargo value on the customs declaration form must be completely consistent with the value on the first and last leg bills of lading and commercial invoices. It is strictly forbidden to have excessive value difference between the first and last legs, otherwise the customs will launch a valuation query, leading to cargo detention at the port. Second, the "Transportation Method" column of the customs declaration form must be consistent with the actual transportation route.

If it is sea transit, you need to select "River and Sea Transport" and note the transit port; if it is air transit, you need to select "Air Transport". In addition, if the transit cargo involves sensitive categories such as precision electromechanical sensors, you need to submit the Transit Cargo Sensitive Category Record Form to the customs in advance to avoid declaration rejection due to unrecorded categories. In case of valuation disputes, you need to immediately provide the cargo purchase contract, payment voucher and market quotation report as supporting materials, and complete the supplementary proof within 7 working days specified by the customs, otherwise you will be included in the customs credit warning list.

**status:** suggested
**Author:** Eric Zhou
**Date:** 2026-06-19

### Answer 3

Transit trade declaration and logistics operation must be closely connected. First, you need to ensure that the free storage period of the transit port matches the declaration cycle. Taking Hong Kong transit as an example, the free storage period for ordinary cargo is 7 days.

If the declaration process exceeds 7 days, you need to apply to the transit port shipping company for an extension of the free storage period in advance to avoid container demurrage charges. Second, the endorsement transfer of the first and last leg bills of lading must be compliant: if the transit entity is a domestic company, the consignee of the first and last leg bills of lading must show the name of the domestic company, and after completing the bill of lading endorsement at the transit port, the endorsed copy of the bill of lading must be synchronized to the customs broker for declaration.

In addition, in case of container rollover or space shortage, you need to immediately notify the customs broker to suspend the declaration, and re-submit the declaration after the new manifest information is updated, so as to avoid cargo detention due to inconsistent manifest and customs declaration information. At the same time, you need to keep all logistics vouchers such as manifests, bills of lading and transit port operation vouchers for at least 3 years as supporting materials for declaration compliance.

**status:** suggested
**Author:** Cindy Chen
**Date:** 2026-06-19

### Answer 4

Transit trade declaration and tax compliance must be matched synchronously. First, it is necessary to clarify that transit trade is not within the scope of domestic value-added tax taxable, and no value-added tax is required, but it is necessary to carry out tax-free declaration in the value-added tax return, noting the words "transit trade".

Second, if the transit trade involves cross-border related party transactions, it is necessary to ensure that the transaction pricing conforms to the arm's length principle, and it is strictly forbidden to transfer profits by underreporting or overreporting the cargo value, otherwise the tax authority will launch an anti-avoidance investigation. In addition, the payment and receipt of transit trade must be declared in the monitoring system of the State Administration of Foreign Exchange, and the amount of payment and receipt must be completely consistent with the cargo value on the customs declaration form.

If there is a small deviation no more than 5%, you need to note "bank handling fee" or "exchange rate difference" when declaring. If the foreign exchange monitoring system gives an early warning due to declaration errors, you need to submit a situation statement and supporting materials to the State Administration of Foreign Exchange within 3 working days to avoid being included in the foreign exchange abnormality list.

**status:** suggested
**Author:** Lucas Liu
**Date:** 2026-06-19

### Answer 5

Transit trade declaration and cross-border payment and receipt must achieve compliance alignment. First, the transaction code for payment and receipt must accurately select "121010 Income/Expenditure under Transit Trade", and it is strictly forbidden to use the transaction code for general trade.

Second, if you use RMB cross-border payment via CIPS system, you need to note "transit trade, transit port XX, destination port XX" in the postscript column of the payment message to ensure that the message information is consistent with the customs declaration information. In addition, if the transit trade involves payment and receipt through offshore accounts, it is necessary to ensure that the capital flow of the offshore account is completely consistent with the cargo flow of the customs declaration form.

It is strictly forbidden to split or collect funds through offshore accounts, otherwise it will be listed as a key monitoring object by the State Administration of Foreign Exchange. If the payment and receipt information is inconsistent with the declaration information, you need to immediately submit the Adjustment Statement for Transit Trade Payment and Receipt and the full set of supporting materials to the State Administration of Foreign Exchange, including the first and last leg bills of lading, commercial invoices, payment vouchers, etc., to avoid being suspended of payment and receipt permissions.

**status:** suggested
**Author:** Evelyn Li
**Date:** 2026-06-19

### Answer 6

The compliance of transit trade declaration must be based on contract terms. First, the transit trade contract must clearly stipulate the transit nature of the cargo, and it is strictly forbidden to have clauses such as "cargo is sold in Chinese territory" or "processed in Chinese territory", otherwise it will be recognized as general trade by the customs. Second, the first and last leg transportation contracts must clearly mark the transit port and the responsibility for transit operations.

If the cargo is damaged or lost at the transit port, the freight forwarder shall bear the responsibility to avoid claim difficulties caused by vague contract terms. In addition, if the transit cargo involves intellectual property rights such as patents of electromechanical sensors, you need to apply to the customs for customs protection recordation of intellectual property rights in advance to avoid cargo detention due to suspected infringement.

If contract breach occurs due to abnormal declaration, you need to immediately activate the force majeure clause if eligible, and submit the declaration abnormality certificate issued by the customs to the customer to reduce breach losses. At the same time, you need to keep all contract documents for at least 5 years as supporting materials for subsequent legal disputes.

**status:** suggested
**Author:** Jason Wu
**Date:** 2026-06-19

### Answer 7

You need to prepare for response in advance if you encounter customs inspection after transit trade declaration. First, you need to ensure that the packaging label of the cargo is consistent with the information on the customs declaration form. The shipping mark on the package must show the transit port, destination port and final consignee information, and it is strictly forbidden to show the address or contact information of enterprises in Chinese territory. Second, during unpacking inspection, you need to cooperate with the customs officers to check the quantity, specification and model of the cargo to avoid inconsistency with the customs declaration form.

If the cargo is precision electromechanical sensors, you need to prepare the Cargo Quality Inspection Report in advance to prove that the cargo has not been altered or processed. In addition, if the customs requires sample testing, you need to cooperate immediately, and ensure that the test sample is consistent with the actual cargo, and the test fee voucher should be kept for cost accounting. At the same time, you need to keep all inspection vouchers such as inspection notice, inspection record and test report for at least 3 years as supporting materials for declaration compliance. If the delivery is delayed due to inspection, you need to notify the customer immediately and provide the customs inspection certificate to avoid customer claim.

**status:** suggested
**Author:** Victor Sun
**Date:** 2026-06-19

### Answer 8

The packaging of transit trade cargo must meet the declaration compliance requirements. First, if the cargo is precision electromechanical sensors, special moisture-proof and shock-proof packaging must be used, and the label on the packaging must be consistent with the cargo information on the customs declaration form.

It is strictly forbidden to have labels inconsistent with the declaration. Second, if the cargo involves UN dangerous goods classification such as some sensors containing lithium batteries, you need to prepare an MSDS report conforming to international standards in advance, and paste the corresponding dangerous goods label on the packaging to ensure that complete packaging compliance documents can be provided during declaration.

In addition, the packaging of transit cargo must be convenient for operation at the transit port, to avoid transit delay caused by oversized or overweight packaging, and the words "transit cargo, do not open" should be marked on the packaging to avoid accidental disassembly. If the declaration is abnormal due to unqualified packaging, you need to replace the packaging immediately and submit a new packaging certificate to the customs to avoid cargo detention at the port.

**status:** suggested
**Author:** Grace Wang
**Date:** 2026-06-19

### Answer 9

Transit trade declaration and export tax refund must have clear boundaries. First, transit trade is not within the scope of export tax refund, and it is strictly forbidden to declare transit trade cargo as general trade export to defraud export tax refund, otherwise the tax authority will recover the tax refund amount and impose a fine. Second, if transit trade and general trade business are operated in combination, the documents and capital flows of the two types of business must be strictly distinguished, and it is strictly forbidden to include the cost of transit trade into the export cost of general trade, otherwise the export tax refund declaration data will be abnormal and trigger tax letter verification.

In addition, the income and cost of transit trade must be accounted for separately in the accounting books to avoid confusion with general trade business. If the tax authority launches letter verification due to declaration errors, you need to immediately provide the full set of transit trade documents such as first and last leg bills of lading, contracts and payment vouchers to prove the authenticity of the business, so as to avoid being suspended of export tax refund permissions.

**status:** suggested
**Author:** Daniel Xu
**Date:** 2026-06-19

### Answer 10

Transit trade declaration must be integrated into the overall supply chain planning. First, you need to select the optimal transit route according to the characteristics of the cargo and the policies of the transit port. For precision electromechanical sensors, ports with strict customs supervision and high transit efficiency such as Hong Kong and Singapore are preferred, to avoid declaration compliance risks caused by loose policies of the transit port.

Second, the declaration process should be linked with the supply chain inventory to ensure that the inventory cycle of transit cargo matches the declaration cycle, so as to avoid declaration delay caused by inventory backlog. In addition, the declaration cost of transit trade should be optimized through the cost actuarial model, for example, selecting shipping companies with long free storage period at the transit port to reduce container demurrage expenses.

At the same time, a supply chain risk early warning mechanism should be established. If the customs policies of the transit port or destination port change, the declaration strategy should be adjusted immediately to ensure compliance implementation. In addition, the declaration process of transit trade should be reviewed regularly to optimize the connection efficiency of core nodes and reduce the overall supply chain cost.

**status:** suggested
**Author:** Linda Gao
**Date:** 2026-06-19

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            "text": "Transit trade declaration must be integrated into the overall supply chain planning. First, you need to select the optimal transit route according to the characteristics of the cargo and the policies of the transit port. For precision electromechanical sensors, ports with strict customs supervision and high transit efficiency such as Hong Kong and Singapore are preferred, to avoid declaration compliance risks caused by loose policies of the transit port. Second, the declaration process should be linked with the supply chain inventory to ensure that the inventory cycle of transit cargo matches the declaration cycle, so as to avoid declaration delay caused by inventory backlog. In addition, the declaration cost of transit trade should be optimized through the cost actuarial model, for example, selecting shipping companies with long free storage period at the transit port to reduce container demurrage expenses. At the same time, a supply chain risk early warning mechanism should be established. If the customs policies of the transit port or destination port change, the declaration strategy should be adjusted immediately to ensure compliance implementation. In addition, the declaration process of transit trade should be reviewed regularly to optimize the connection efficiency of core nodes and reduce the overall supply chain cost.",
            "upvoteCount": 0,
            "url": "https://www.sh-zhongshen.com/en/qa/transit-trade-customs-declaration-compliance-procedures-documents.html#suggestedAnswer-10",
            "datePublished": "2026-06-19T17:12:19Z",
            "author": {"@type": "Person","name": "Linda Gao","url": "https://www.sh-zhongshen.com/en/team/linda-gao/"}          }
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