Full Analysis of General Trade Import Customs Declaration Process: 2026 Latest Operation Guide

As the core foreign trade hub in China,Shanghai’s general trade import scale increased by around 12% in 2026 compared with 2025.Many enterprises import high-quality raw materials and consumer goods through general trade,but the customs declaration process involves multiple departments including customs,commodity inspection and taxation,with cumbersome links prone to errors.Last week,a batch of German mechanical equipment imported by Mr.Ouyang’s company was delayed for 3 days in customs clearance due to deviation in HS code classification,resulting in over RMB 2,000 of port demurrage charges -- similar problems are common among small and medium-sized foreign trade enterprises.Combined with Zhongshen’s more than 20 years of operation experience at Shanghai Port,this article systematically sorts out the whole process of general trade import customs declaration in 2026 to help enterprises accurately grasp the key points of each link.

1.Pre-preparation: Lay a Solid Foundation for Customs Declaration Compliance

The core goal of this stage is to confirm that the enterprise has customs declaration qualifications,complete commodity classification and document preparation,and avoid subsequent process jams caused by lack of preconditions.In 2026,Shanghai Customs has further refined the document review requirements for general trade imports,especially for the classification and supervision certificate verification of sensitive commodities such as consumer goods and medical devices.

1.1 Key Actions and Common Problems

Enterprises need to complete three core actions:

• Confirm own customs declaration qualification: If the enterprise does not have import and export operation rights,it needs to entrust an agency to handle the process (In 2026,Shanghai canceled the import and export operation right filing for some small and micro enterprises to simplify the process,but basic documents such as business license are still required);
• Confirm commodity classification: Determine the HS code according to the latest 2026 Import and Export Tariff,and some commodities need to apply for pre-classification in advance;
• Document preparation: Collect basic documents such as commercial invoice,packing list and bill of lading,and sensitive commodities need to provide supervision certificates such as customs clearance certificate and license.

Common problems focus on two points: First,wrong HS code classification.For example,the food additives imported by Mr.Zhou’s company were mistakenly classified as ordinary food,which led to the tariff rate rising from 5% to 12%,and the customs required re-declaration.Second,missing documents.For example,some enterprises did not notice that Shanghai Customs required Chinese label samples for imported consumer goods in 2026,resulting in rejected declarations.

1.2 Core Value of Zhongshen

In response to the pain points in pre-preparation,Zhongshen provides targeted support:

First,HS code pre-review: Relying on over 20 years of classification experience and combined with the latest 2026 customs tariff adjustment,we provide pre-classification suggestions for enterprises.In Mr.Zhou’s food additive case,Zhongshen completed the code adjustment within 1 hour after receiving the materials,avoiding tariff loss and declaration delay;

Second,standardized document review: We provide customized document templates and check whether the supervision certificates are complete in advance.For example,for imported medical devices,we confirm in advance whether the Medical Device Registration Certificate is required,so as to avoid customs clearance delay caused by missing certificates;

Third,qualification assistance: If the enterprise does not have import and export operation rights,Zhongshen can assist in completing the signing of the customs declaration agency power of attorney,qualification filing and other processes,without extra trips for the enterprise.

2.Cargo Arrival and Electronic Declaration: Seize the Customs Clearance Time Window

The core goal of this stage is to complete the bill of lading exchange and electronic declaration in time after the cargo arrives at the port,so as to avoid port demurrage charges caused by delayed declaration (In 2026,the port demurrage charge standards of Shanghai Yangshan Port and Waigaoqiao Port have been slightly increased compared with 2025,with the first 3 days free,and RMB 150 per TEU per day from the 4th day).

2.1 Key Actions and Common Problems

Process nodes include:

• Bill exchange: After the cargo arrives at the port,exchange the delivery order from the shipping company or agent with the bill of lading (In 2026,Shanghai Port fully implements electronic bill exchange,no paper bill of lading is required);
• Electronic declaration: Submit customs declaration data through the Customs Single Window,and declare commodity inspection simultaneously;
• Tax calculation: After customs review,the payment notice of tariff,value-added tax and consumption tax will be generated,and the enterprise shall pay within 10 days.

Common problems: First,delayed declaration.Ms.Wei’s company failed to pay attention to the cargo arrival information in time,and the bill exchange was delayed for 2 days,resulting in port demurrage charges.Second,wrong tax calculation.Some enterprises have deviation in tariff rate calculation due to HS code or certificate of origin problems,and overpayment or underpayment of tax affects subsequent verification.

2.2 Core Value of Zhongshen

Zhongshen improves the efficiency of this link through digital tools:

First,cargo dynamic monitoring: We connect with the systems of shipping companies and ports,and push cargo arrival information in real time.In Ms.Wei’s case,Zhongshen reminded the bill exchange 1 day in advance,avoiding port demurrage charges;

Second,fast declaration through Single Window: We have Class A customs agency qualification,with a declaration data pass rate of 99%,and the average declaration time is 60% shorter than that of ordinary enterprises;

Third,accurate tax calculation: Combined with the 2026 tariff preferential policies (such as tariff reduction enjoyed by RCEP certificate of origin),we calculate the tax amount in advance to avoid overpayment by enterprises.For example,for the Japanese electronic products imported by Mr.Cui’s company,Zhongshen assisted in providing the RCEP certificate of origin,reducing the tariff from 8% to 4% and saving nearly RMB 20,000 in costs.

3.Inspection and Release: Key Link of Compliant Customs Clearance

The core goal of this stage is to cooperate with customs inspection,ensure cargo compliance,and obtain release and pick up goods smoothly.In 2026,Shanghai Customs implements "intelligent inspection",the inspection rate has decreased by 15% compared with 2025,but the inspection standards for high-risk commodities (such as food and cosmetics) have been further improved.

3.1 Key Actions and Common Problems

Process includes:

• Inspection notice: The customs sends the inspection notice through the Single Window,and the enterprise needs to cooperate within the specified time;
• On-site inspection: The customs unpacks and inspects the cargo,and checks the document information (such as commodity name,specification,quantity);
• Abnormality handling: If the cargo is inconsistent with the documents,a situation explanation or rectification is required;
• Release and pick-up: If there is no abnormality in the inspection,the customs will release the cargo,and the enterprise can pick up the goods with the delivery order.

Common problems: First,inconsistent cargo labels.The Chinese labels of chemical products imported by Mr.Tao’s company did not indicate the hazard level,and were required to be rectified by the customs.Second,poor communication at the inspection site.Some enterprises are not familiar with the customs inspection process,leading to extended inspection time.

3.2 Core Value of Zhongshen

Zhongshen accompanies the whole inspection process to reduce risks:

First,inspection prediction: According to the commodity category and customs inspection rules,we predict high-risk points in advance.In Mr.Tao’s chemical product case,Zhongshen confirmed the label requirements in advance to avoid rectification;

Second,dedicated on-site contact: We arrange experienced customs brokers to cooperate with the inspection on site and answer customs questions in time,and the average inspection time is 40% shorter than that handled by enterprises themselves;

Third,fast abnormality handling: If there is inspection abnormality,Zhongshen assists in submitting the rectification plan.For example,when the cargo specifications are inconsistent,we assist in providing supplier certificates,and the rectification and release can be completed within 1 day at the fastest.

4.Post-clearance Settlement and Verification: Complete the Closed Loop of the Whole Foreign Trade Process

The core goal of this stage is to complete tax payment,foreign exchange settlement and customs verification to ensure smooth financial process of the enterprise.In 2026,the Shanghai Administration of Foreign Exchange further simplified the import payment process,but complete documents are still required for verification.

4.1 Key Actions and Common Problems

Process includes:

• Tax payment: Pay tariff,value-added tax,etc.through the bank designated by the customs;
• Foreign exchange settlement: Handle import foreign exchange payment with customs declaration,contract,etc.;
• Customs verification: Submit the verification copy of customs declaration,delivery order,etc.to complete import verification;
• Financial entry: Sort out documents and complete financial bookkeeping.

Common problems: First,delayed verification.Mr.Ouyang’s company failed to submit the verification copy in time,resulting in the foreign exchange account being frozen for 3 days.Second,cumbersome foreign exchange settlement process.Some enterprises are not familiar with foreign exchange policies,leading to delayed payment and affecting supplier payment.

4.2 Core Value of Zhongshen

Zhongshen provides one-stop settlement and verification services:

First,tax payment on behalf: We can assist enterprises to pay tariff and value-added tax,without extra bank procedures for enterprises;

Second,professional foreign exchange receipt and payment service: Relying on the 2026 foreign exchange policy adjustment,we provide fast payment channel.In Mr.Ouyang’s case,Zhongshen assisted in completing the payment within 1 day,avoiding supplier payment reminders;

Third,synchronous verification processing: Complete customs verification within 3 days after release,50% shorter than that handled by enterprises themselves,avoiding problems such as account freezing.

Although the general trade import customs declaration process in Shanghai has been simplified due to digital upgrading in 2026,it is still necessary to accurately grasp the supervision requirements of each link.Zhongshen has been deeply engaged in the industry for more than 20 years,and is familiar with the latest policies of Shanghai Port.From pre-document preparation to post-clearance verification,we provide customized services throughout the process to help enterprises avoid risks such as classification errors,port demurrage charges and delayed verification,and improve customs clearance efficiency by more than 30%.If you have general trade import needs,you can contact Zhongshen to get an exclusive solution.