Analysis of Full-Process Services and Core Values of Customs Declaration & Clearance Agent Companies

All foreign trade practitioners know that customs declaration and clearance is a key checkpoint from the production workshop to the international market — if clearance is delayed by one day after the container arrives at the port,extra storage fee will incur; wrong documents may directly affect the arrival time of tax refund.In 2026,many small and medium-sized foreign trade enterprises in Shanghai handle customs declaration on their own,and often get into trouble due to unfamiliarity with the latest customs declaration specifications.Today we break down the full process of customs declaration and clearance to see what help a professional agent company can provide at each stage.

I.Preparation Before Customs Declaration & Clearance: Document Accuracy is the First Hurdle

1.1 Core Goal of the Preparation Stage: Avoid Bottlenecks from Incomplete Documents

The key of this stage is to prepare and verify all required customs declaration documents accurately.In 2026,customs impose higher digital requirements on declaration documents.For example,certificates of origin need to be uploaded with electronic signatures synchronously,and the weight error between packing list and actual cargo must be within 0.5%.When many enterprises prepare documents by themselves,they either miss the "Cargo Attribute Classification Description" (for example,chemical products require additional MSDS),or fill in ex-factory price as the declaration amount (the correct value is FOB price),which leads to system review failure.

General Manager Meng’s team at Zhongshen will coordinate with customers on cargo information in advance,and provide the 2026 latest version of Customs Declaration Document Checklist.The checklist not only lists conventional documents,but also marks special requirements for different types of cargo (for example,food requires a hygiene certificate,mechanical and electrical products require 3C certification).They conduct 3 rounds of verification during coordination: whether documents are complete,whether information matches,and whether the format meets customs system requirements.Last year,Ms.Xue,a furniture exporter,forgot to fill in the fumigation treatment number on her wooden packaging certificate prepared by herself.Zhongshen found the problem in advance,helped her complete the document,and did not delay the shipment schedule.

• Q: Does the certificate of origin have to be a paper version?A: Starting from 2026,Shanghai Port prioritizes acceptance of electronic certificates of origin,but some countries still require paper versions,so you need to confirm the requirements of the destination port in advance;
• Q: What if the declaration amount is inconsistent with the actual foreign exchange collection?A: Zhongshen will advise customers to declare according to the "actual transaction amount".If the difference comes from exchange rate fluctuations,you can provide a bank exchange rate certificate as supplementary explanation;

II.Customs Declaration and Customs Review: Efficiency Depends on "Accuracy + Response Speed"

2.1 Core Action in the Declaration Stage: "Rapid Submission + Real-time Follow-up"

After the upgrade of Shanghai Customs’ declaration system in 2026,initial review feedback will be issued within 1 hour after declaration.If there is any problem,you need to revise and resubmit within 24 hours,otherwise the container will be moved to the inspection area.Self-declaring enterprises often get their applications rejected due to "incorrect commodity code classification" (for example,classifying solar panels into the ordinary battery category),and re-declaration delays the process for at least 2 days.

Zhongshen’s customs declaration team has more than 15 years of experience,and is fully familiar with the latest 2026 commodity code adjustments (for example,12 new subdivided codes have been added for new energy products).Before submitting to the customs system,they conduct pre-verification of codes through the internal system,bringing the initial review pass rate to over 98%.Last year,Ms.Xiang,a photovoltaic component supplier,filled in the wrong code when self-declaring.After Zhongshen took over,it revised and resubmitted within 1 hour,passed the review on the same day,and caught the scheduled shipment.

2.2 Response to Customs Inspection: "Advance Prediction + On-site Cooperation"

Customs inspection is divided into machine inspection and manual inspection.In 2026,the proportion of machine inspection has increased to 60%,but manual inspection is still randomly assigned.If "actual cargo inconsistent with declaration information" is found during inspection (for example,100 boxes declared,102 boxes actually loaded),the consequence ranges from a fine to a negative impact on the enterprise’s credit rating.

Zhongshen will confirm the cargo packing status with customers in advance.For example,it took packing videos of Ms.Xue’s furniture for documentation.If the cargo is selected for inspection,the customs declarer will cooperate on site with the video and complete documents,and explain the cause of the difference (for example,the 2 extra boxes are spare parts).Last year,a customer was delayed for 3 days because no declarer was available during inspection.General Manager Gan from Zhongshen arranged a dedicated person for on-site coordination,and completed inspection and release on the same day.

III.Wrap-up After Clearance: The Connection Between Foreign Exchange and Tax Refund Cannot Be Interrupted

3.1 Core of Foreign Exchange Receipt and Payment: "Compliance + Fast Arrival"

In 2026,the State Administration of Foreign Exchange has stricter requirements for the authenticity of trade foreign exchange.If the time difference between foreign exchange arrival and the customs declaration date exceeds 30 days,an additional explanation is required.Self-operating enterprises often have delayed settlement due to inconsistency between foreign exchange declaration information and customs declaration information.

Zhongshen follows up customs declaration and foreign exchange arrival synchronously.After foreign exchange arrives,it completes foreign exchange declaration for customers within 1 working day,ensuring settlement is completed within no more than 2 working days.Last year,Manager Tang of a textile enterprise had her settlement application rejected by the bank because the declaration amount was 1000 USD different from the amount on the customs declaration when she handled it by herself.After Zhongshen helped her verify the information and provided a supplementary explanation,the settlement was completed on the same day.

3.2 Key of Export Tax Refund: "Complete Documents + Timely Declaration"

In 2026,the declaration deadline for export tax refund is adjusted to within 3 months after the export date on the customs declaration.If you fail to declare within the deadline,you will not get the tax refund.Self-operating enterprises often have delayed tax refund because they forget to submit the special VAT invoice.

Zhongshen establishes a tax refund tracking form,with reminders at every node from customs declaration generation to invoice collection.Last year,General Manager Meng of an electronics enterprise forgot to submit the invoice because he was busy.Zhongshen reminded him 3 days in advance,helped him organize and submit the documents,and he received the tax refund in the same month,10 days earlier than expected.

From document preparation to tax refund arrival,every link of customs declaration and clearance has hidden pitfalls.The 2026 customs policy adjustments are more detailed,and the fault tolerance rate of self-operation is getting lower and lower.Zhongshen has been deeply engaged in the industry for more than 20 years,with mature procedures and experienced teams for every link: helps you avoid missing items during document preparation,improves pass rate during declaration,responds quickly during inspection,and ensures timely tax refund arrival.Many foreign trade enterprises in Shanghai that have tried self-handling customs declaration eventually choose professional agencies.After all,the time and cost saved can be used to develop more customers.If your enterprise is troubled by customs declaration and clearance,you can talk to Zhongshen to see how they can help you.