How does customs clearance work? The process involves submitting shipment information to customs authorities, verifying import requirements, assessing applicable duties and taxes, and obtaining permission to release the goods. For shipments imported from China, customs authorities may review commercial documents, examine declared product information, or inspect the cargo before authorizing release.
A customs broker, carrier, or logistics provider may handle much of the process, but the buyer or legally responsible importer may still need to provide accurate product information, supporting documents, and necessary authorizations.
This guide explains how customs clearance works, what documents you need, why goods may be held at customs, and what you can do to reduce avoidable delays when importing from China.
What Is Customs Clearance?
Customs clearance is the formal process that allows goods to move across a country’s customs border under the applicable import or export procedures.
A shipment traveling from China to another country may involve two separate procedures:
- Export clearance in China: The required export declaration, documentation, and controls before departure.
- Import clearance at the destination: The declaration and checks required before goods can enter the destination market.
Completing export clearance does not mean the goods have been approved for import.
At the destination, customs authorities may check the product description, declared value, tariff classification, country of origin, importer details, and compliance with relevant restrictions.
Not every shipment is physically opened or inspected. Customs authorities may use electronic processing and risk assessment to determine which goods require additional checks.
Customs release means the relevant authority has authorized the goods to proceed under the applicable customs procedure. It does not necessarily mean the buyer has received the shipment or that every possible post-release obligation has ended.
How Does Customs Clearance Work? Step by Step
For commercial imports from China, the process can be understood through six common activities.
These are not always six strictly consecutive stages. Some declarations are submitted before arrival, and certain customs checks or tax procedures may occur in parallel.
| Stage | What happens | What the buyer may need to do |
|---|---|---|
| 1. Import eligibility | Confirm that the goods and importer meet applicable requirements | Check product restrictions and provide importer information |
| 2. Documentation | Prepare commercial and transport information | Supply accurate product details, invoices, and supporting records |
| 3. Declaration | An authorized party submits required customs data | Provide missing information or necessary authorization |
| 4. Customs review | Authorities assess declarations and may inspect goods | Respond to document or inspection requests |
| 5. Duties and conditions | Required payments, guarantees, or other release conditions are addressed | Follow the agreed payment and compliance arrangements |
| 6. Release | Customs authorizes goods to proceed | Coordinate the remaining delivery with the carrier |
Before Shipping: Confirm Import Eligibility
The first step is identifying who can legally import the goods.
Depending on the country, the responsible party may be called the Importer of Record (IOR), importer, or declarant.
That party may need customs registration, business identification, import authorization, or other credentials.
A customs broker may be able to file declarations on behalf of an authorized importer, but hiring a broker does not automatically remove the importer’s legal responsibilities.
You should also check the products themselves.
For example, some batteries, wireless electronic devices, cosmetics, food products, and medical products are subject to additional import rules.
Ask the relevant service provider or qualified specialist whether the cargo requires certificates, permits, testing, or particular customs procedures.
Do not wait until the shipment reaches the destination country to discover that a required authorization is missing.
Prepare and Submit the Customs Declaration
The importer or authorized representative gathers the commercial and transport information needed for clearance.
A customs declaration generally identifies the goods, applicable tariff classification, quantity, customs value, origin, and importing party.
In many countries, this information is submitted electronically.
Some customs systems allow information to be processed before the cargo arrives. This can help reduce unnecessary waiting after arrival.
However, a transport document or cargo manifest is not always a substitute for the required import declaration.
What should the buyer do?
Make sure the supplier and the person handling clearance have accurate information about the actual goods.
For purchases from several Chinese suppliers, identify which products and quantities belong to each supplier before the shipment is consolidated.
Do not rely on a generic product description if the shipment contains several different types of merchandise.
Customs Review, Inspection and Duty Assessment
After receiving the necessary information, customs authorities assess the declaration under the destination country’s rules.
They may check:
- Product classification and description
- Declared customs value
- Country of origin
- Import restrictions and permits
- Applicable duties and taxes
- Whether a document review or physical inspection is necessary
A physical inspection does not automatically indicate wrongdoing. Customs may select shipments through risk-based or other lawful control procedures.
Duties and taxes are handled according to local requirements. Depending on the customs system, goods may be released after the required payment or security arrangements, even if certain final assessments are completed later.
Buyers should respond promptly when an authorized broker or customs authority requests legitimate supporting information.
Customs Release and Final Delivery
Once the necessary conditions have been met, customs authorizes the goods for release.
The cargo may then move from the airport, seaport, or customs-controlled facility to the local delivery network.
However, customs release and final delivery are different events.
A shipment may already be customs-cleared but still require terminal handling, sorting, carrier collection, or domestic transportation.
If your tracking status appears unchanged, ask whether the shipment is awaiting customs action or simply waiting for its next logistics movement.
What Documents Are Needed for Customs Clearance?
The documents needed for customs clearance depend on the destination, product type, shipment value, and applicable import procedure.
For many commercial shipments, the following information is important.
| Document or information | Why it matters |
|---|---|
| Commercial invoice | Identifies the goods, buyer, seller, quantities, prices and transaction details |
| Packing list | Explains the cartons, contents, quantities, weights and packing details |
| Bill of lading or air waybill | Identifies the transport movement and shipment |
| Importer information | Identifies the party responsible under applicable import rules |
| HS or tariff classification | Helps determine applicable tariff treatment and other customs measures |
| Country-of-origin information | Supports origin declarations and any applicable preferential treatment |
| Permits or certificates | Supports compliance where the goods are regulated |
Not every shipment requires a separate document for every item in this table.
Requirements may also differ between commercial freight and qualifying simplified or low-value import procedures.
Why Product Descriptions Matter
One common documentation problem is an invoice that does not clearly identify the goods.
Consider this example.
| Unclear description | More useful description |
|---|---|
| Accessories | Polyester fabric hair bands |
| Electronic products | USB-powered plastic desk fans |
| Clothing | Men’s cotton knitted T-shirts |
The descriptions on the right identify the products more specifically.
They are examples, not guaranteed complete customs descriptions. The destination may still require material composition, intended use, model information, or other details.
Descriptions should reflect the actual products rather than what might make a shipment appear easier to clear.
Check That Your Documents Agree
Imagine a shipment containing 120 garments.
The commercial invoice lists 120 pieces, but the packing list shows 100 pieces.
Before dispatch, determine whether the difference is a documentation error, an incomplete shipment, or something else.
If the supplier shipped only 100 pieces, the documents should accurately reflect the transaction and actual goods, including any agreed partial delivery.
If the packing list is simply incorrect, obtain a genuine corrected version.
For buyers ordering from several suppliers, organizing the goods and supporting purchase information before export can make this process easier.
A China warehouse receiving service can help identify incoming supplier parcels, confirm available packing details, and organize goods for international dispatch.
Basic warehouse inspection does not replace customs classification, document preparation by an authorized party, or regulatory certification.
Why Do Shipments Get Held at Customs?
A customs hold means goods are awaiting a decision, information, inspection, payment arrangement, or another requirement before release.
It is not automatically a seizure or confiscation.
The correct solution depends on the actual reason for the hold.
| Problem | What to confirm first | Appropriate next step |
|---|---|---|
| Invoice details do not match | Which entries or quantities are inconsistent? | Obtain genuine corrected records and have the authorized party address the discrepancy |
| Declared value is questioned | What supporting evidence is requested? | Provide invoices, order confirmations, payment records or other genuine evidence |
| Product classification is questioned | What product characteristics are unclear? | Supply material, function and specification details for proper classification |
| Shipment is selected for inspection | Is an examination actually scheduled or underway? | Follow the official process and request an accurate status update |
| An import permit is missing | Which permit is required, and can it legally be obtained? | Consult the responsible authority or qualified import specialist |
| Importer details are invalid | What registration or authorization is incorrect? | Have the authorized importer or representative resolve the issue under local rules |
Some issues can be resolved by providing missing or corrected documentation.
Others cannot.
For example, goods that are prohibited from import cannot simply be released because a freight provider submits a different invoice.
Example: A Shipment from Three Chinese Suppliers Is Delayed
An overseas retailer orders clothing and accessories from three suppliers.
The goods are sent to one China warehouse and consolidated for international transportation.
After arrival, the destination customs authority requests clarification because the commercial records do not provide enough information to identify the different products and their values.
The appropriate response is to:
- Ask the current customs broker or declarant for the exact information requested.
- Match each product group to the relevant supplier records.
- Obtain accurate descriptions, quantities, and genuine transaction documents.
- Submit the additional information through the authorized customs process.
- Confirm whether customs has accepted the response or requires further action.
The solution is not to invent values or change product descriptions to conceal the actual goods.
This example illustrates why correct information collected before shipping is valuable.
What Should You Do if Your Shipment Is Stuck at Customs?
First, establish whether customs is actually responsible for the delay.
A shipment might be waiting for a carrier, warehouse transfer, or delivery instruction rather than a customs decision.
Ask your existing carrier or customs broker:
- Has customs issued a document request, inspection notice, or another instruction?
- Which authority or party needs to act next?
- What precise information or payment is outstanding?
- Who is authorized to respond or amend the declaration?
- Are storage or handling charges accumulating?
If the goods are already under another provider’s customs declaration, that provider and the responsible importer are usually the appropriate first contacts.
A new shipping company cannot guarantee that it can take over an existing customs case or speed up an official inspection.
A customs hold, seizure, and refusal of entry are different situations. If a formal enforcement or refusal decision has been issued, seek advice appropriate to the applicable law and official procedure.
Who Is Responsible for Customs Clearance?
Different parties may participate in the clearance process, but they do not necessarily share the same responsibilities.
| Party | Typical role |
|---|---|
| Supplier | Provides accurate commercial and product information |
| Importer or Importer of Record | Holds the applicable import responsibilities under local law |
| Customs broker | Prepares and submits declarations when properly authorized |
| Carrier or freight forwarder | Coordinates transportation and may arrange clearance services |
| Customs authority | Applies import controls and determines whether goods can be released |
The precise division of responsibility depends on the jurisdiction, contracts, and import procedure.
How Does This Work with DDP Shipping?
Under a standard DDP sales arrangement, the seller is responsible for the specified import clearance formalities and applicable duties and taxes.
However, an independent freight forwarder offering a DDP logistics package operates under its own service agreement. This does not automatically change the original contract between the buyer and the Chinese supplier.
For a more detailed explanation of these responsibilities, see What Is DDP Shipping?
If you have already bought goods in China and have not yet arranged international transportation, 1688DDP’s DDP shipping service may provide a suitable shipping option, including agreed import clearance, applicable duties and taxes, and final delivery.
The available arrangement depends on the destination, products, applicable regulations, and confirmed quotation.
You do not have to use purchasing assistance simply because you need international shipping.
How Long Does Customs Clearance Take?
There is no universal customs clearance time.
Some commercial shipments can be released with limited intervention, while others need additional documents, inspection, regulatory approval, or payment arrangements.
The actual time depends on factors such as:
- Destination-country customs procedures
- Type and classification of goods
- Accuracy of the declaration
- Customs risk selection
- Import permits or regulatory checks
- Importer and broker responsiveness
- Applicable payment or guarantee requirements
It is therefore misleading to promise that every shipment will clear customs within a fixed number of hours or days.
The World Customs Organization provides guidance on release and clearance of goods, including advance processing, risk management, and the treatment of goods before and after release.
How to Avoid Customs Clearance Delays
No importer or logistics provider can guarantee that customs will never inspect a shipment.
However, buyers can reduce preventable errors before the goods leave China.
Use this checklist:
- Confirm the importer and any required registration or authorization.
- Check whether each product is eligible for import.
- Gather accurate product descriptions, quantities, and values.
- Confirm the appropriate tariff classification and origin information.
- Identify any permits, certificates, or regulatory requirements.
- Make sure commercial and packing information is consistent.
- Confirm who will submit the customs declaration.
- Agree on who will handle applicable duties, taxes, and clearance services.
For buyers using several Chinese suppliers, collecting this information before consolidation is particularly useful.
If you cannot confirm whether a product can legally enter the destination country, resolve that question before authorizing international dispatch.
Frequently Asked Questions
Do All International Shipments Need Customs Clearance?
International shipments are generally subject to applicable customs procedures. Some countries provide simplified procedures or exemptions for qualifying goods, but the requirements depend on the product, value, destination, and import regime.
Do Customs Officers Open Every Package?
No. Customs authorities use document reviews, risk assessment, and other controls. Physical inspection is not required for every shipment, although authorities may examine selected cargo.
Can a Customs Broker Clear Goods on My Behalf?
Often, yes. An appropriately authorized customs broker may prepare and submit declarations where local law permits. The importer may still have legal responsibility for the accuracy of the declared information.
Does Paying Import Duties Mean the Goods Are Cleared?
Not necessarily. Customs release may also depend on documentation, inspections, permits, or other requirements. In some jurisdictions, release may occur before certain duties or taxes are finally determined, subject to lawful conditions.
Does DDP Shipping Guarantee Customs Clearance?
No. An agreed DDP service may coordinate import clearance and applicable charges, but customs authorities retain responsibility for import decisions. Restricted goods, missing documents, or non-compliance can still prevent release.
Final Thoughts
Understanding how customs clearance works helps overseas buyers prepare shipments more carefully and respond appropriately when import questions arise.
The most important tasks are identifying the legally responsible importer, confirming product eligibility, providing accurate documents, and understanding which party will manage customs procedures.
If customs has already placed a shipment on hold, your existing broker or authorized declarant should explain the required next action.
If your goods are still in China and have not been internationally dispatched, there is a better opportunity to check the information and shipping arrangements in advance.
1688DDP can help review available international transportation arrangements for suitable cargo, including DDP services with agreed customs clearance, applicable duties and taxes, and final delivery.
Planning to ship goods from China?
Send the product descriptions, quantities, approximate commercial values, destination country and postal code, expected weight and dimensions, and any known import restrictions.
With those details, the team can assess suitable shipping options and identify the additional cargo information that should be confirmed before dispatch.
