2026 Latest Import and Export Customs Declaration and Inspection Full Process Practical Guide

In the 2026 international trade landscape,the intelligence of customs supervision systems and big data linkage have reached an unprecedented level.For enterprises engaged in foreign trade,import and export customs declaration and inspection is no longer a simple form-filling task,but a comprehensive game involving data logic,compliance prediction and risk management.As a senior foreign trade expert at Zhongshitong,I have seen too many enterprises ignore declaration details,leading to goods being stranded at ports for months or even facing huge fines.Today,I will set aside textbook theories,combine practical experience from Shanghai Port and global linked operations,to break down a truly implementable full process of import and export customs declaration and inspection.

I.Core Pre-requisites: Document Preparation and "Accurate Classification" of HS Codes

For both imports and exports,the source of all clearance efficiency lies in the accuracy of documents and the classification of HS codes.In 2026,the automatic document review system of the customs "single window" checks logical relationships extremely strictly.Many enterprises are accustomed to directly using last year’s customs declaration form,which is often the beginning of risk.

In practice,HS codes not only determine tariff rates,but also directly relate to regulatory conditions (such as A: Inspection Certificate for Imported Goods,B: Inspection Certificate for Exported Goods).I handled a case of chemical raw material import,where client Ms.Xue classified a mixture into the wrong sub-item,leading to omission of the "dual-use item" license,and the goods were directly detained by customs upon arrival.The correct approach is,before shipment,confirm according to the product’s composition,purpose,working principle,combined with the "Import and Export Tariff" and the latest classification rulings of the General Administration of Customs.

• Declaration Element Verification: Elements such as brand,model,material,specification,principle,purpose must be fully consistent with the actual goods,invoice and packing list.Any logical contradiction,such as "new" shown on the invoice but "used" in declaration elements,will trigger system alerts.
• Price Logic Consistency: The filling of freight,insurance and miscellaneous fees directly affects the dutiable value.Especially under FOB terms,failure to truthfully declare subsequent freight is a high-incidence area for customs price review and tax supplementation.

II.Full Process of Import Customs Declaration: Practical Breakdown from "Document Exchange" to "Release"

Import procedures are often more complex than exports,as they involve access control at Chinese ports.Taking Shanghai Yangshan Port as an example,a mature import operation process includes the following key nodes:

1.Advance Declaration and Manifest Data

The current improvement in clearance efficiency benefits from the "advance declaration" model.When goods are still sailing overseas,we can make a preliminary declaration based on copies of bills of lading.Here is a key operational point: manifest data must strictly match customs declaration data.Once there are slight deviations in information such as bill of lading number,quantity,weight and measurement,the system will automatically "reject the declaration",leading to failure to submit a formal declaration.Zhongshitong usually requires freight forwarders to send the pre-allocated manifest 24 hours before the ship arrives at the port,leaving sufficient time to correct errors.

2.Customs Price Review and Inspection Risk Control

This is the most worrying link for imports.The 2026 price review system has introduced AI risk profiling.If your declared price is significantly lower than the internal risk line of goods of the same brand and model,or there is a special relationship between the buyer and seller (such as parent-subsidiary company) that does not affect the transaction price,customs will most likely initiate a "price inquiry".

In such cases,do not blindly withdraw the declaration.The correct response strategy is to provide detailed payment vouchers,insurance policies,freight vouchers,and even original factory invoices or price links from public e-commerce platforms,to prove the authenticity of the trade background.As for inspections,customs mainly verifies the "consistency between goods and documents".For used mechanical and electrical products,the CCIC (China Certification & Inspection Group) certificate is an essential clearance key; without it,the goods will almost definitely be returned.

3.Tax Payment and Goods Pickup

Once customs generates the tax invoice,payment must be completed within the specified time (usually before 14:00 the next day),otherwise late fees will be incurred.Now that the "self-declaration and self-payment" model is popular,clearance speed has been greatly improved.However,after tax payment and release,if the goods are subject to statutory inspection,you still need to wait for customs inspection personnel to sign to confirm that "sanitary treatment" or "animal and plant quarantine" is qualified before you can actually pick up the goods.

III.Full Process of Export Customs Declaration: Focus on "Tax Refund" and "Compliance"

The core pain points of export customs declaration lie in "whether tax refund can be smoothly obtained" and "avoiding return at the destination port".In operation,we emphasize the synchronization of "document flow" and "goods flow".

1.Pitfall Avoidance Guide for Declaration and Inspection

The most taboo thing in export customs declaration is "discrepancy between documents and goods".For example,if the actual exported goods are unbranded sports shoes,but the declaration form applies a well-known brand,this will be classified as infringement,handled by the customs regulatory department,with extremely serious consequences.For goods related to export tax refunds,the levy rate and tax refund rate of the HS code must be accurate.If the tax refund rate of a certain commodity has been recently reduced,but the enterprise still declares according to the old standard,it will not only fail to obtain the tax refund,but may also be suspected of tax fraud.

I recommend enterprises to standardize shipping marks in the production link.During customs inspection,the destination,product name and quantity on the shipping mark are the first check points.Unclear shipping marks will directly increase the inspection rate.

2.Electronic Ledger and Clearance Closure

Goods release does not mean clearance closure.Only when the goods are loaded on board and leave the port,and customs receives the tally report confirming no errors,will the customs declaration form show the "clearance closure" status.At this time,enterprises can print the "export tax refund copy" on the single window.In 2026,many enterprises have begun to use the "export goods released/not closed" status query function to real-time monitor whether the goods leave the port on time,preventing data anomalies caused by shipping schedule delays.

IV.Comparative Analysis of Risks in Key Links of Import and Export

To help everyone more intuitively understand the differences and risk points in import and export operations,I have compiled the following comparison table,which is a core material for our Zhongshitong’s internal training of new employees.

V.Practical Suggestions for Global Trade Compliance in 2026

With the comprehensive deepening of the RCEP policy and the intensification of trade barriers in Europe and the United States,it is not enough to only focus on customs declaration at Chinese ports.When Zhongshitong handles global linked businesses,it will specially remind customers of the following points:

• Full Utilization of Certificate of Origin: When exporting to RCEP member countries,be sure to apply for issuance of a certificate of origin that meets the agreement requirements; this is a direct voucher for enjoying zero tariffs or tariff reductions in foreign countries.Many enterprises have suffered heavy losses because they were denied preferential treatment by foreign customs due to minor discrepancies.
• Anti-dumping Early Warning of Destination Country: Before exporting sensitive products such as steel,ceramics,chemicals,etc.you must check the latest anti-dumping tax rate of the destination country.If the product is on the sanction list,you need to transfer through a third country or find an alternative market in advance; do not take chances and ship directly.
• Globalization of Dangerous Goods Compliance: For dangerous goods such as lithium batteries,coatings,etc.not only must they meet China’s dangerous goods packaging certificate requirements,but also ensure that the UN number and packaging category fully comply with the IMDG Code (International Maritime Dangerous Goods Code).Once non-compliant dangerous goods labels are found at the destination port,you will face not only fines,but also high destruction costs and environmental lawsuits.

Foreign trade is a protracted war about details.The import and export customs declaration and inspection process seems cumbersome,but as long as you master the data logic and compliance red lines,you can minimize risks.Zhongshitong,relying on the geographical advantages of Shanghai Port and its global agency network,is always ready to solve your most difficult clearance problems and ensure that your goods can move smoothly worldwide.