---
title: "How to Process Customs Declaration Forms for EU Exports? Full Process Analysis by 2026 Professional Agency - Zhongshen Trading China"
description: "The EU CBAM mechanism will be fully implemented in 2026，and REACH regulations continue to be updated，leaving Chinese export enterprises facing stricter document review and compliance requirements. This article focuses on the practical operation of customs declaration forms by export agency companies，combines Zhongshen's 20 years of customs declaration experience，systematically breaks down three core modules of EU market document preparation，customs clearance process，and tax refund handling，..."
url: "https://www.sh-zhongshen.com/en/foreign-trade-knowledge/export-eu-customs-declaration-process-guide-2026.html"
language: "en"
type: "Article"
category: "Foreign Trade Knowledge"
datePublished: "2026-05-26"
dateModified: "2026-05-26"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/d5aTFna4tJZKm.webp"
---

# How to Process Customs Declaration Forms for EU Exports? Full Process Analysis by 2026 Professional Agency

## Export Background and Core Challenges for the EU Market

The EU Carbon Border Adjustment Mechanism (CBAM) entered the full declaration phase in 2026,coupled with the entry into force of the REACH regulation amendment,placing unprecedented compliance pressure on Chinese export enterprises.Taking three major categories of mechanical equipment,chemical products and textiles as examples,data from Brussels Customs for the fourth quarter of 2025 shows that the inspection rate caused by non-standard customs declaration form filling increased by 18% year-on-year,and the average port detention time extended to 11.3 working days.In a case of a batch of CNC machine tools exported to Germany handled by Manager Shi in March,the customer declared on their own and ignored the correlation matching between the CBAM certificate and HS code,resulting in the goods being detained at Hamburg Port for two full weeks,and finally incurring additional storage costs of nearly 10,000 euros.Behind such losses is the increasingly complicated cross-verification mechanism of EU Customs for documents such as certificates of origin,environmental protection certifications,and anti-dumping duty deposits.The document departments of traditional foreign trade enterprises often find it difficult to track the differences in the rules of customs of the 27 member states in real time,and lack response channels to deal with sudden regulatory inquiries.

![Frequent Customs Detention for EU Exports? These Key Details of Declaration Forms Determine Clearance Success or Failure](https://cndpic.sh-zhongshen.com/uploads/tradepics/d5aTFna4tJZKm.webp)

## Core Values of Zhongshen Export Agency Services

Zhongshen has set up on-site customs brokerage offices at Shanghai Port and Ningbo Port,which have handled a total of more than 32,000 shipments of goods bound for the EU over the past two decades.The team is equipped with three full-time regulatory researchers who track updates to the Official Journal of the European Union (OJEU) daily.At the end of 2025,Zhongshen completed the renewal of its EU AEO Advanced Certification qualification six months in advance,which directly means that the inspection priority of customers’ goods is raised by two levels at hub ports such as Antwerp and Rotterdam.The customs declaration department where Manager Shi works has established a dynamic commodity database,which matrix-correlates 6,800 commonly used HS codes for Chinese exports to the EU with corresponding CE directives,RoHS standards,and carbon emission factors.When a customer entrusts a batch of photovoltaic modules to be exported to Spain,the system can automatically trigger three verifications: IEC 61215 certification check,carbon footprint report matching,and anti-circumvention investigation risk warning.This pre-risk interception mechanism controls the declaration error rate below 0.3%.

## Customs Declaration Service Module Breakdown and EU Special Response

### Module 1: Document Preparation - EU Compliance Document System

The core of EU customs declaration forms does not lie in the form itself,but in the closed-loop logic of supporting documents.Taking the mandatory CBAM quarterly declaration implemented in 2026 as an example,exporters are required to submit a carbon emission report issued by an EU-recognized verification body in the documents attached to the customs declaration form.Manager Shi’s team found that more than 60% of enterprises mistakenly submit domestic carbon verification reports directly,resulting in customs rejection.The correct approach is to first conduct data conversion certification through a third-party institution recognized by the EU Emissions Trading System (EU ETS),and then fill in the certificate number in Box 44 "Additional Information" of the customs declaration form.

- **EORI Number Validity Verification:** The EU requires that the EORI number in the customs declaration form must be linked to the importer’s actual VAT number.Zhongshen has developed a real-time EORI verification tool,which can confirm the validity of importer qualifications in 15 countries including Germany and France before declaration,avoiding order rejection due to invalid number segments.
- **Application of Rules of Origin:** After the reform of the EU Generalized System of Preferences (GSP) in 2026,the origin standard for textiles was changed from "cutting place" to "yarn pre-treatment place".Zhongshen’s document specialists will intervene in the customer’s procurement process in advance,guide yarn suppliers to issue FORM A certificates that comply with the new rules,and ensure that the preferential tax rate mark in Box 34 of the customs declaration form is accurate.
- **Environmental Certification Integration:** For electronic and electrical products,the customs declaration form requires the CE certification notified body number to be indicated in Box 31 "Additional Document Code".Zhongshen’s database contains information on 1,200 EU notified bodies,which can automatically match the validity period of customers’ certificates.

### Module 2: Customs Clearance Implementation - EU Customs Procedures and Risk Control

The EU Customs Risk Management System (CRMS) scans 42 parameters of customs declaration forms,among which price reasonableness,weight error,and description matching degree are the three high-frequency interception points.Since January 2026,Dutch Customs has enabled AI-assisted document review for goods with a value of more than 20,000 euros.The system automatically captures the transaction price range of similar global commodities in the past 90 days,and declarations that deviate from the average by more than 15% will trigger manual verification.Manager Shi’s team has established a price pre-review model,which combines real-time data from the London Metal Exchange (LME),Platts and other sources to provide customers with reasonable price range suggestions for their goods before declaration.

![Slow EU Customs Clearance and Difficult Tax Refund? Zhongshen’s 20 Years of Experience Boosts Efficiency by 50%](https://cndpic.sh-zhongshen.com/uploads/tradepics/d5XTP7XrX7voZ.webp)

| Risk Category | EU Customs Verification Focus | Zhongshen Response Measures | Time Efficiency Improvement Effect |
| --- | --- | --- | --- |
| Price Declaration | Compare with historical transaction prices in the TARIC database | Provide third-party price certification reports | Inspection rate reduced by 40% |
| Commodity Classification | Intelligent comparison of HS codes and physical photos | Provide pre-classification services with technical specifications attached | Document review time shortened by 60% |
| Weight and Volume | Cross-verification of logistics trajectory data | Pre-match supervision loading reports and bills of lading | Abnormal interception rate reduced by 75% |
| Anti-dumping Duty | Traceability of origin and processing procedures | Pre-audit of supply chain traceability document packages | Deposit occupation reduced by 50% |

At the customs clearance implementation level,Zhongshen’s Brussels office provides a "customs declaration pre-submission" service.While the customer’s goods are still in transit by sea,the draft customs declaration form has entered the customs system queue in advance,and will be officially activated after the ship berths at the port.This model shortens the traditional 4-5 day process of "declaration after goods arrive at the port" to completion of release within 24 hours after the goods arrive at the port.For chemical products that require import licenses,Zhongshen will assist customers in applying for license documents from the Dutch VWS or German BAuA three months in advance to ensure that the license number is valid when the customs declaration form is submitted.

### Module 3: Tax Refund Handling - Key Path to Accelerate Capital Recovery

The core of export tax refund lies in the accurate matching of customs declaration form information and value-added tax invoices.After the State Taxation Administration launched the "Smart Tax Refund" system in 2026,the focus of tax refund review for EU export business has shifted to the verification of logistics authenticity.Manager Shi found that many enterprises have their tax refund process stalled due to case differences between the container number on the customs declaration form and the shipping company’s bill of lading.The "document homology" system developed by Zhongshen automatically captures the shipowner’s booking data at the moment the customs declaration form is generated,ensuring that all logistics elements are strictly consistent.

For EU export business,Zhongshen has set up an expedited tax refund channel.After the customer’s goods are cleared by EU Customs,the Brussels office will immediately send the T1 transit document or EU import declaration form (IM8 Form) back to the Shanghai headquarters.This set of documents forms a closed loop with the domestic export customs declaration form,allowing tax refund declaration to be initiated within 5 working days,which is 80% faster than the industry average cycle of 45 days.For the full year of 2025,the tax refund success rate of EU-bound business represented by Zhongshen reached 99.2%,with an average tax refund receipt time of 23 working days.For small and medium-sized enterprises adopting EXW terms,Zhongshen provides a "no-invoice tax refund" scheme,which integrates LCL data from multiple customers and declares customs uniformly in the name of Zhongshen,solving the problems of individual enterprises with insufficient cargo value and inverted tax refund costs.

## Efficiency Improvement: Empirical Data on Customs Clearance Speed and Tax Refund Cycle

Zhongshen’s Q1 2026 operational data shows that the average customs clearance time for EU goods under agency declaration is 1.8 working days,while the average time for independent declaration by enterprises in the Shanghai Customs District during the same period is 5.2 working days.The efficiency difference comes from three links: first,the draft customs declaration form has completed three levels of internal review before the goods are loaded; second,EU port agents hold Zhongshen’s AEO authorization and can handle inspection procedures on a priority basis; third,the digital system realizes millisecond-level synchronization between customs release instructions and warehouse delivery instructions.

In terms of tax refund speed,the entire process for Zhongshen’s customers from customs declaration submission to tax refund crediting takes an average of 22.3 days.This benefits from the direct API connection between customs declaration data and the tax declaration system,as well as the "tax refund data pre-review day" mechanism established by Manager Shi’s team – every Wednesday is fixed to batch review the tax refund qualification of customers’ incoming goods and correct potential errors in advance.A textile enterprise in Zhejiang with exports to France reaching 4.7 million euros in 2025 received its annual tax refund 90 days in advance after adopting Zhongshen’s services,which is equivalent to releasing about 3.8 million yuan in working capital and directly reducing financing costs.

## Decision Logic for Choosing Zhongshen Customized Services

The complexity of the EU market determines that customs declaration services cannot adopt standardized templates.Zhongshen allocates an exclusive service unit for each customer,led by a senior customs declarer at Manager Shi’s level,with members including document specialists,tax consultants,and EU legal liaison officers.This configuration model ensures that when a customer’s product switches to a new HS code,or a EU member state suddenly implements temporary trade controls,a response plan can be developed within 6 hours.In April 2026,Poland launched a countervailing duty investigation on electric vehicle charging equipment from China.Zhongshen adjusted the declaration elements of the customs declaration forms for relevant customers within 48 hours,and declared the risky goods under general trade mode,avoiding deposit occupation.

For medium and large enterprises with annual export value exceeding 5 million euros,Zhongshen provides "embedded services" – the customs declaration system is directly connected to the customer’s ERP,and a draft customs declaration form is automatically created when the order is generated.Small and medium-sized customers can choose the "customs declaration hosting" mode,which does not require the deployment of full-time foreign trade document specialists,and all operations are completed remotely by Zhongshen.Regardless of the mode,customers can view the circulation status of customs declaration forms at EU Customs in real time through an exclusive port,and the operator,processing time,and approval opinions of each node are completely transparent.This service structure upgrades foreign trade agencies from traditional "errand runners" to "compliance and risk control partners",truly realizing that customers only need to focus on production and orders,and the complexity of cross-border delivery is handled by Zhongshen in a closed loop.

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