---
title: "Detailed Explanation and Practical Guide for Full Process of Customs Clearance by Import and Export Agency Company - Zhongshen Trading China"
description: "In 2026，Shanghai foreign trade enterprises are facing dual pressures of customs clearance timeliness and compliance. Many enterprises suffer from delays or penalties due to unfamiliarity with the process. Customs clearance services provided by import and export agency companies have become the key solution to these pain points，yet issues such as document review and tariff estimation hidden in the process still require attention. Mr. Han from Zhongshen stated that by decomposing core links and op..."
url: "https://www.sh-zhongshen.com/en/news/customs-clearance-for-import-export-agency-full-process-guide.html"
language: "en"
type: "Article"
category: "Industry News"
datePublished: "2026-09-25"
dateModified: "2026-09-25"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/BPeIkKuhCSxaj.webp"
---

# Detailed Explanation and Practical Guide for Full Process of Customs Clearance by Import and Export Agency Company

Mr.Han is the head of an electronic product export enterprise in Shanghai.Last month,due to the wrong commodity code filled in the customs declaration form,his goods were detained at the port for 3 days,which not only incurred extra storage fees,but also missed the delivery date agreed with overseas customers.Similar situations are not uncommon in the foreign trade industry in 2026.As a core link of the import and export chain,customs clearance directly determines whether goods can enter and exit the country smoothly.Most small and medium-sized foreign trade enterprises lack professional teams,so the customs clearance service of import and export agency companies has become a rigid demand.Combined with the practical experience of Zhongshen,this article systematically sorts out the full process of customs clearance of import and export agency companies in 2026,and decomposes the key actions and risk points of each stage.

## 1.Preliminary Preparation: Document and Qualification Review

![How Can Agent Customs Clearance Help Enterprises Save Cost and Improve Efficiency in 2026](https://cndpic.sh-zhongshen.com/uploads/tradepics/BPeIkKuhCSxaj.webp)

The core goal of this stage is to ensure that all customs declaration materials comply with the 2026 new customs regulations,avoiding order rejection due to incomplete or wrong materials,which is the foundation for the smooth progress of subsequent processes.

### Key Actions

- Collect basic documents: including trade contract,commercial invoice,packing list,bill of lading (air/sea/railway waybill),certificate of origin (to enjoy tariff preference if required),customs clearance certificate for commodity inspection (required for legally inspected goods),etc;
- Review qualification documents: Confirm that the enterprise’s import and export operation right (if entrusted to agency,it will be provided by Zhongshen) and the registration certificate of customs declaration unit are within the validity period.In 2026,the customs requires that this certificate must complete annual online annual inspection;
- Pre-classification of commodity codes: According to the 2026 newly revised "Import and Export Commodity Tariff",accurately code the commodities to avoid overpayment of tariffs or customs penalties caused by code deviation.

The role of Zhongshen in this link is irreplaceable: the document review team led by Manager Wu will conduct "double verification" on each document - the system automatically checks the 2026 customs updated code directory first,and then manual review by specialists with more than 10 years of experience.For example,in 2025,a clothing enterprise mistakenly classified "recycled polyester fiber fabric" as "cotton fabric".Zhongshen found and adjusted the code in advance,helping the enterprise save 12% of tariff expenditure.

### Common Problems and Avoidance Suggestions

- Failure to conduct commodity inspection in advance for legally inspected goods: In 2026,the customs requires that legally inspected goods must complete commodity inspection 3 working days before the goods arrive at the port,otherwise customs clearance cannot be processed; Zhongshen will remind customers to arrange commodity inspection in advance to avoid delay;
- The information on the certificate of origin does not match the goods: for example,the certificate of origin marks "China" but some raw materials actually come from overseas,which will affect tariff preference; Zhongshen will assist customers to check the source of raw materials to ensure the accuracy of certificate of origin information;
- Wrong consignee information on bill of lading: which makes it impossible to pick up goods.Zhongshen will confirm the bill of lading information with the shipping company before declaration to avoid such errors.

## 2.Customs Declaration: Electronic Data Submission and Customs Review

![Common Pitfalls in Agent Customs Clearance? 2026 Practical Guide is Here](https://cndpic.sh-zhongshen.com/uploads/tradepics/bpGQiWHj5cD5m.webp)

This stage is the core of the customs clearance process.Data needs to be submitted through China International Trade Single Window.In 2026,the customs has further improved the requirements for the accuracy of electronic declaration.Enterprises with an error rate exceeding 0.5% will be included in key monitoring.

### Electronic Declaration Stage

Key actions include entering customs declaration information (commodity code,quantity,value,transportation method,etc.),uploading scanned copies of supporting documents,confirming submission and obtaining pre-entry number.Zhongshen’s customs declaration system has been connected to the latest 2026 customs interface,which can automatically verify data logic: such as the matching degree between commodity code and tariff rate,deviation between declared value and customs reference price (automatic warning if deviation exceeds 10%).President Zuo mentioned that last year,the declared value of an auto parts enterprise was 15% lower than the customs reference price.After the system gave an early warning,Zhongshen assisted in supplementing the third-party valuation report,avoiding the 2-day delay caused by customs valuation.

### Customs Review Stage

Customs review is generally divided into "machine review" and "manual review": machine review mainly checks data format and logic,manual review targets high-risk goods (such as food,medicine,electronic products).Key actions include waiting for review results (1-3 working days),cooperating with customs inspection (if selected),and paying tariffs/value-added tax for taxable goods.

Common problem: Inconsistency between declared data and actual goods (for example,1000 pieces declared but only 900 pieces actually) will be fined 5% of the goods value by the customs; Zhongshen will check the actual situation of the goods with the customer again before declaration to ensure consistent data.

## 3.Cargo Inspection and Release

In 2026,the customs inspection rate is about 8%,and the inspection rate of high-risk goods reaches 20%.The core of this stage is to quickly cooperate with inspection and obtain release instructions to avoid extra costs caused by goods detained at the port.

### Key Actions

- Inspection preparation: Transport the goods to the designated inspection site according to customs requirements,sort out cargo identification and packaging information,and prepare third-party inspection reports for special goods (such as fresh products,fragile products);
- On-site cooperation: Arrange special personnel to accompany customs inspection and answer questions.For example,electronic products need to provide CE certification and RoHS test report;
- Release confirmation: After passing the inspection,the customs releases the goods in the single window system,and the goods can be arranged for shipment/boarding.

The advantage of Zhongshen lies in the professionalism of the inspection team: the team led by General Pu has more than 15 years of inspection experience and can quickly predict the key points of customs inspection.For example,last year a fresh food enterprise exported strawberries,and part of them deteriorated due to too long inspection time.Zhongshen optimized the inspection appointment process (communicated with customs in advance for inspection time slot),shortened the inspection time from 2 days to 1 day,reducing cargo loss by 30%.

### Common Problems and Solutions

- Delayed arrangement of inspection site: Zhongshen has established a priority appointment mechanism with inspection sites at major ports such as Shanghai Yangshan Port and Waigaoqiao,which can arrange sites quickly;
- Unclear cargo identification: Zhongshen will remind customers in advance to mark commodity code,quantity,origin and other information on cargo packaging to improve inspection efficiency;
- Special goods do not provide inspection and quarantine certificate: In 2026,food export needs to provide health certificate issued by Entry-Exit Inspection and Quarantine Bureau.Zhongshen will assist customers to handle it in advance to avoid failure to release.

## 4.Follow-up: Document Archiving and Abnormal Handling

It is not the end after customs clearance is completed.Subsequent document archiving and abnormal handling are also important.In 2026,the customs requires that customs declaration documents must be kept for no less than 3 years and traceable.

### Key Actions

- Document archiving: Sort out and archive customs declaration form,tariff payment certificate,inspection record,certificate of origin and other materials.Zhongshen provides both electronic and paper double archiving service;
- Abnormal handling: In case of return,claim and other situations,assist enterprises to prepare relevant supporting documents (such as return agreement,commodity inspection certificate) and go through return customs declaration procedures;
- Feedback and optimization: Collect customer feedback,for example,optimize the customs clearance process for electronic product export to reduce repeated document submission links.

The customer service team led by Ms.Zhu will send all documents to customers within 7 working days after customs clearance is completed,and provide 1 year of free consulting service.Last year,an enterprise needed to return goods because overseas customers rejected the goods.Zhongshen assisted in going through the return customs declaration procedures,avoiding the enterprise paying 100,000 RMB import tariff.

## Self-declaration by Enterprise vs Agent Customs Clearance by Zhongshen: Core Difference Comparison

| Comparison Dimension | Self-declaration by Enterprise | Agent Customs Clearance by Zhongshen |
| --- | --- | --- |
| Customs Clearance Timeliness | Average 3-7 working days (prone to delay affected by document errors) | Average 1-3 working days (system automatic verification + experience prediction) |
| Annual Cost Expenditure | Personnel salary (150,000-200,000 RMB annual cost for 1-2 person team) + system usage fee (5,000 RMB per year) + error penalty (2,000-10,000 RMB per time on average) | Charged by customs declaration batch (300-800 RMB per batch) + no extra penalty cost (agency undertakes compliance risk) |
| Compliance Risk | Violation rate is about 15% due to untimely policy update | Real-time policy update,violation rate lower than 2% |
| Industry Coverage | Only familiar with customs clearance process of single category | Covers 10+ industries (electronic products,clothing,fresh products,auto parts,etc.),familiar with 2026 latest customs regulations |

It can be seen from Mr.Han’s case that the core value of customs clearance of import and export agency companies in 2026 is not only to help enterprises save time and cost,but more importantly,to control the compliance risk of each link through a professional team.Zhongshen has been deeply engaged in the industry for more than 20 years,and has accumulated rich experience in core links such as customs declaration,inspection and international transportation,and can customize customs clearance schemes according to the characteristics of different industries.If you are troubled by cumbersome customs clearance procedures and high compliance risk,you may wish to contact a professional agency to make foreign trade business smoother.

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