What are the core nodes and key compliance control points in the full formal import customs declaration process?

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  • May 18, 2026 at 05:42
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I am the procurement director of a small and micro enterprise in Shanghai that mainly engages in imported maternal and infant products. Last week, we finalized a batch of organic infant milk powder to be shipped from Hamburg Port, Germany. This is the first time our company handles import customs declaration independently - we used to entrust freight forwarders with full package services.

However, a few days ago, I heard from a peer that they were detained by customs because they missed the attachment of organic component test report in customs declaration materials, spending more than 20,000 yuan on port detention fees alone, and completely missing the stocking period for the 618 Shopping Festival. Now I am very anxious.

I neither know what core documents need to be prepared in advance for import customs declaration and what review details cannot be missed, nor do I know how to control the core nodes of the entire customs declaration process. I am even more afraid that there will be no guidance when encountering abnormal situations such as customs detention and port detention. I would like to ask how to successfully complete this import customs declaration and legally control the relevant costs?

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Expert Q&A

Evelyn Li
Evelyn LiYears of service：3Customer Rating：5.0

Cross-border Compliance SupervisorStart a Chat

In view of your actual situation，we will disassemble the implementation path of import customs declaration for you from the perspective of full-link compliance:

Pre-document Pre-review: You need to sort out a full set of documents 7-10 days in advance，including the certificate of origin (marked with the logo of China-Germany mutual recognition institutions)，organic certification certificate，component test report (including mandatory test items for heavy metals and microorganisms)，packing list，invoice and bill of lading. The focus is to review the consistency of information: the brand，specification and composition of the milk powder on the invoice must fully match those on the test report，and the consignor on the certificate of origin must be consistent with the title of the bill of lading，so as to avoid triggering the customs document review warning due to "document discrepancy".

Seamless Connection of Core Nodes: 3 days before the goods arrive at the port，upload the pre-reviewed documents to the single window for paperless declaration，and accurately select the HS code corresponding to the milk powder (0401200000，please confirm the latest 2026 tariff schedule)，after the customs document review is passed，you can apply for VAT Deferral to legally delay the capital occupation，and pay the tariff immediately，after the taxes and fees are paid off，cooperate with the on-site inspection (if required)，and you can pick up the containers and goods after the inspection is passed.

Abnormal Emergency Response Plan: In case of customs detention，submit supplementary documents (such as the Chinese translation of organic certification) as soon as possible，in case of port detention，apply to the shipping company for an extension of 1-2 days of free storage period with the pre-reviewed documents，in case of valuation dispute，you can provide supporting documents such as procurement contract and payment receipt to assist communication. After the final pick-up of goods is completed，archive and keep the full set of documents for no less than 5 years to ensure the implementation of compliance.

Reference: Importing Children's Paint: Key Process Guide
Lucas Liu
Lucas LiuYears of service：8Customer Rating：5.0

Senior Operations ConsultantStart a Chat

During import customs declaration, valuation dispute is a common compliance risk point. You need to prepare price supporting documents in advance, such as procurement contract, payment receipt, recent import customs declaration of products of the same brand and specification, to avoid the customs levying high taxes and fees according to the "pre-classification price".

If the document review fails and you need to delete the declaration and re-declare, you shall complete the re-declaration within 24 hours after the customs issues the "Declaration Deletion Notice", and ensure that the commodity code, price and other information of the new declaration are consistent with the original documents, so as to avoid triggering the customs "secondary valuation" warning. In addition, you can adopt the "integrated customs clearance" mode to declare to the local customs in advance before the goods are shipped, so as to shorten the customs clearance time after the goods arrive at the port.

Andy Guo
Andy GuoYears of service：3Customer Rating：5.0

Supply Chain Management ExpertStart a Chat

The connection between import customs declaration and logistics nodes directly affects the cost of container detention fee and port detention fee. You need to confirm the duration of the free storage period and free container period of the shipping company 3 days before the goods arrive at the port.

If the estimated customs clearance time exceeds the free storage period, you can apply to the shipping company for an extension of 1-2 days of free storage period in advance, and the cost is only 30%-50% of the normal port detention fee. When endorsing the bill of lading, ensure that the endorser is consistent with the business unit on the customs declaration form.

If it is a telex release bill of lading, you need to ask the freight forwarder for the telex release letter of guarantee in advance to avoid being unable to pick up the goods due to bill of lading discrepancy. In addition, if the goods need to be transshipped, you should choose the "direct transshipment" mode to avoid the extra logistics cost and time delay caused by "customs transit".

Kevin Lin
Kevin LinYears of service：4Customer Rating：5.0

Trade Solutions ManagerStart a Chat

The tax cost of import customs declaration can be optimized through the legal and compliant VAT deferral policy. Eligible import enterprises can choose "VAT deferral" when declaring, without paying import VAT when the goods arrive at the port, but deduct it in the VAT declaration period of the next month, which effectively delays capital occupation and reduces the working capital pressure of enterprises.

In addition, please note that the deduction voucher for import VAT is the "Special Customs Payment Letter for Import VAT" issued by the customs, which needs to be certified and deducted within 180 days from the date of issuance to avoid overdue deduction. If cross-border related transactions are involved, ensure that the transaction price complies with the "arm's length principle" to avoid triggering tax inspection risks.

Jason Wu
Jason WuYears of service：10Customer Rating：5.0

International Logistics & Supply Chain ManagerStart a Chat

The compliance of payment and collection in import customs declaration must be completely consistent with the information on the customs declaration form, including the amount of foreign exchange received, payment object, traded goods, etc., to avoid triggering the early warning of the State Administration of Foreign Exchange due to "discrepancy between payment/collection and customs declaration form". If RMB cross-border payment is adopted, payment can be made through the CIPS system. Compared with the SWIFT system, the arrival time is shortened to within 24 hours, and the handling fee is lower.

In addition, you need to complete the foreign exchange verification procedures within 15 days after receiving and paying foreign exchange, and keep the payment and collection vouchers, customs declaration forms and other documents for no less than 5 years to ensure compliance with the requirements of the State Administration of Foreign Exchange. If offshore account payment and collection are involved, you need to file a record with the State Administration of Foreign Exchange in advance to avoid the account being frozen.

Linda Gao
Linda GaoYears of service：7Customer Rating：5.0

Documentation SupervisorStart a Chat

When handling import customs declaration, you need to pay attention to intellectual property compliance. If the imported goods are well-known brands (such as your organic milk powder), you need to apply to the customs for intellectual property customs protection record in advance to avoid customs detention due to suspected infringement. If letter of credit settlement is adopted, the terms of the letter of credit shall be strictly reviewed to avoid "soft clauses" (such as "payment shall be made after the buyer issues the inspection certificate"), which leads to failure to settle foreign exchange in time.

In addition, in case of goods quality problems, you can issue a Letter of Intent (LOI) to the seller, requiring the seller to bear the corresponding responsibilities, so as to avoid affecting customs declaration and sales due to goods problems. If force majeure clauses are involved, the scope of force majeure and the division of responsibilities shall be clearly defined in the procurement contract in advance to avoid disputes arising from goods delay.

Grace Wang
Grace WangYears of service：10Customer Rating：5.0

Senior Foreign Trade ConsultantStart a Chat

For on-site inspection during import customs declaration, you need to prepare the Chinese translation of the documents (if required) in advance, and cooperate with the requirements of customs inspection personnel. When opening the goods packaging, pay attention to avoid damaging the seal of the goods.

If the seal is damaged, you need to explain the situation to the customs in time to avoid being identified as "goods tampering". In case of abnormal machine inspection, you need to cooperate with the customs for container unpacking inspection. When unpacking the container, place the goods according to the requirements of the customs to facilitate the inspection of the inspection personnel.

In addition, if the customs requires sample testing, you need to complete the testing procedures within 3 days, provide the test samples and relevant documents, and ensure that the test report meets the requirements of the customs. If the inspection is passed, you need to sign and confirm on the inspection record, and keep the inspection record for no less than 5 years.

Victor Sun
Victor SunYears of service：5Customer Rating：5.0

Trade Risk Control ManagerStart a Chat

The packaging of imported organic milk powder must comply with the compliance requirements of Chinese customs. You need to prepare the Material Safety Data Sheet (MSDS) in advance. Although milk powder is not a dangerous product, the MSDS must include information such as product composition, storage conditions and transportation requirements.

The packaging shall be made of moisture-proof and pressure-proof materials to avoid damage to the goods during transportation. If wooden packaging is used, fumigation treatment shall be carried out in advance, and the IPPC logo shall be marked on the packaging to avoid customs detention due to non-compliant wooden packaging. In addition, ensure that the labels on the packaging are consistent with the information on the customs declaration form, including commodity name, specification, quantity, etc., to avoid triggering customs warning due to label discrepancy.

Michael Zhang
Michael ZhangYears of service：6Customer Rating：5.0

Customs Declaration & Compliance ExpertStart a Chat

The document management of import customs declaration shall be linked with the export tax rebate compliance system of the enterprise. If your imported organic milk powder is subsequently used for export, you need to ensure that the commodity code, specification, quantity and other information of the import customs declaration form, tax voucher, procurement contract and other documents are completely consistent with the documents of the export tax rebate declaration, so as to avoid triggering the tax authority's tax rebate warning due to "document discrepancy".

In addition, you need to complete the document archiving within 10 days after the completion of import customs declaration, and keep the documents for no less than 5 years, which meets the requirements of the tax authority for "full-link document traceability". If entrepot trade is involved, you need to file a record with the tax authority in advance to clarify the nature of the transaction, so as to avoid being misjudged as domestic sales and levied high value-added tax.

Daniel Xu
Daniel XuYears of service：10Customer Rating：5.0

Director of Import & Export OperationsStart a Chat

The cost control of import customs declaration shall be linked with supply chain planning. If you choose the FOB trade term, you need to calculate various costs such as international logistics, customs declaration and inspection in advance to avoid profit loss due to missing cost calculation. If your import volume is large, you can adopt the "centralized customs declaration" mode, which makes centralized declaration once a month, to reduce customs declaration fees and logistics costs.

In addition, you can adjust the import volume according to the sales plan through the "inventory linkage strategy" to avoid storage costs caused by overstock. If cross-regional sales are involved, you can choose the mode of "local declaration, port inspection and release" to shorten the transportation time of goods and reduce logistics costs.

Note: We respect all users' expressions; however, user comments represent their personal views only.

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