Full Breakdown of Temporary Import Customs Declaration Process: Practical Guide from ATA Carnet to Deposit Risk Control

Nature and Core Value of Temporary Import: Not "Tax Exemption",but "Deferred Tax Payment"

In international trade practices in 2026,enterprises often need to temporarily transport goods into Chinese territory for exhibition,testing,maintenance and other purposes,and re-export them after use.This is not ordinary import trade,and it is defined as "temporary import" by customs.A core cognitive misunderstanding must be corrected: temporary import is not equal to tax-free import.Its essence is that customs allow payable taxes including customs duties and import value-added tax to be paid on a deferred basis against a guarantee in the form of deposit or letter of guarantee.As long as the goods are re-exported in original condition within the time limit specified by customs (usually 6 months,extension applicable),the guarantee will be released and the funds will be returned.On the contrary,if the goods are converted into formal import or not exported within the time limit,the guarantee deposit will be directly converted into tax payment,and fines may be imposed.

The core value of this model is that it greatly eases the cash flow pressure of enterprises,especially applicable to high-value equipment,precision instruments or short-term commercial exhibits.

• Exhibits and display equipment required for participating in international exhibitions and expos.
• Machines,instruments or samples used for testing,inspection and debugging.
• Props,costumes and equipment required for film and television shooting and artistic performances.
• Professional equipment required for sports events and cultural exchange activities.
• Items that need to be re-exported after inbound repair and maintenance.

Full Operation Process and Key Nodes: Closed-loop Management from "Access" to "Re-export"

A successful temporary import customs declaration is the combination of precise process control and proactive risk management.It is far more than submitting a customs declaration form,but covers the full-cycle supervision of goods before entry,during domestic stay and at re-export stage.

Preparatory Work: Dual Verification of Documents and Qualifications

Before the goods arrive at the port,preparatory work determines the success of the declaration.First,confirm the applicable declaration path: whether to use the internationally accepted ATA Carnet,or follow the "general temporary import" procedure of Chinese customs.ATA Carnet applies to exhibits,professional equipment and other goods with relatively simplified procedures,but it is not applicable to all countries and all goods,and still requires filing and declaration at Chinese customs.Second,no matter which method is adopted,accurate commodity information is the foundation.Pre-classification of HS code must be completed in advance,which is directly related to supervision conditions,deposit calculation and smooth subsequent re-export.For example,an industrial robot for testing must be classified accurately according to its function and purpose,so as to avoid customs queries caused by wrong classification,which may lead to targeted inspection or even requirement to convert to general trade import.

Declaration Practice: Path Selection between ATA Carnet and General Temporary Import

Take a case we handled as an example: our client Mr.Wei needed to import a precision measuring instrument from Germany to Shanghai to participate in an industry exhibition,with an exhibition period of only 7 days.We recommended him to use ATA Carnet.During operation,we checked the consistency of the instrument model,serial number and the Carnet list in advance,and anticipated the possible customs valuation concern on high-precision instruments.After the goods arrived in Shanghai,we declared to Shanghai Exhibition Center Customs with the ATA Carnet.Thanks to sufficient document preparation,the goods were released quickly after on-site verification,avoiding delay in booth construction.

Domestic Supervision and Re-export: A Closed Link That Cannot Be Ignored

After the goods enter the territory,it does not mean everything goes well.Customs implements follow-up supervision on temporarily imported goods.The goods must be kept in "original condition",that is,without customs permission,they shall not be sold,rented,used for other purposes,or processed or modified in any form.Enterprises need to establish internal accounts to cooperate with possible customs verification.

Re-export is a key step to release the guarantee.You must declare export to the original entry customs within the time limit approved by customs.When declaring,documents such as the original import declaration form and deposit receipt shall be provided to prove that the exported goods are exactly the goods temporarily imported before.After customs verification and write-off,you can go through the deposit refund procedures.A practical tip here: the packaging and shipping marks of re-exported goods should be consistent with those at the time of import as much as possible,which is convenient for quick customs verification and speeds up the write-off process.

2026 Compliance Risk Control and Practical Pitfall Avoidance Guide

Risk points of temporary import business are hidden and costly.The following are key early warnings based on the current supervision environment.

HS Code and Customs Valuation: A "Double-edged Sword" of Customs Supervision

Customs valuation is not only for general trade.For temporarily imported goods,especially high-value equipment,customs will review the declared "dutiable value" as the basis for calculating the guarantee amount.If the declared value is significantly lower than the import price of similar goods or the international market price,customs has the right to appraise the value.In 2026,the application of customs big data is more in-depth,and customs has more comprehensive access to commodity price information.It is recommended that enterprises provide real purchase invoices,payment vouchers or third-party valuation reports as support.For leased or free-of-charge equipment,relevant agreements shall be provided,and the dutiable value shall be determined in accordance with the valuation methods specified by customs.

Deposit and Financial Risk Control: Ignored "Capital Cost" and "Exchange Loss"

The deposit amount is usually the total amount of customs duty and VAT payable for import of goods.The calculation formula is: Deposit = (value of goods × tariff rate + value of goods × (1 + tariff rate) × VAT rate).This fund will be frozen by customs until the goods are re-exported.Enterprises need to evaluate:

• Capital occupation cost: The opportunity cost of hundreds of thousands or even millions of deposit occupied for several months cannot be underestimated.
• Exchange rate fluctuation risk: If the deposit is paid in foreign currency,it will be refunded in the original currency.If the RMB exchange rate fluctuates greatly during this period,foreign exchange losses may occur.We once assisted our client Mr.Xiong in handling a batch of artworks exhibited from Italy,and avoided potential exchange loss risks by locking the exchange rate and selecting the appropriate currency for deposit payment.
• Letter of guarantee alternative: For enterprises with high capital pressure,they can apply to the bank for a customs tax guarantee,replacing cash pledge with credit guarantee,but they need to pay bank handling fees and exposure occupation fees.

Demurrage and Hidden Costs: "Time Trap" of Ports and Warehouses

The storage time of temporarily imported goods in port areas or bonded warehouses must be strictly controlled.Overdue will generate high container detention charges and port storage charges.For example,after the free container period and free storage period of Shanghai Yangshan Port end,the fees accumulate day by day,and the cost soars.It is necessary to closely connect customs clearance efficiency with logistics and warehousing arrangements,and formulate a timetable accurate to the day.We usually recommend clients to complete pre-examination of all documents one week before the goods arrive at the port,and declare immediately after arrival,so as to minimize the port operation time.

Zhongshitong’s Differentiated Service Capabilities: Beyond Shanghai Port

As a foreign trade service expert rooted in Shanghai,we are well aware of the operation characteristics and inspection priorities of local ports.However,the needs of enterprises are often cross-regional.A piece of equipment may enter the country from Shanghai,be transported to Beijing for exhibition,and finally be re-exported from Shenzhen.This involves inter-city customs transit and supervision coordination between different customs districts.

Our value lies in:

• Linked declaration capability based on national ports,which can seamlessly coordinate customs procedures in Shanghai,Beijing,Shenzhen and other places to ensure the continuity of the supervision chain.
• With agency networks in major trading countries around the world,we can assist clients to handle ATA Carnet in the exporting country and complete write-off at the re-export destination,realizing real "one document for the whole journey".
• Proactive risk control: we complete compliance assessment,cost simulation and emergency plan before the project starts,converting "unknown risks" into "controllable costs".

In summary,temporary import customs declaration of goods is a highly professional customs licensed business.It tests the agent’s deep understanding of customs supervision logic,precise control of the whole process nodes,and ability to predict and avoid potential risks.Under the more intelligent and strict customs supervision system in 2026,relying on experience,pursuing details and implementing full-process risk control are the only ways to ensure smooth business operation and controllable costs.