Los Customs Issues When Importing from China can turn a profitable purchase into a costly and complicated transaction. Incorrect tariff classification, incomplete documentation, an inaccurate customs value, certification issues, or labeling errors can lead to delays, inspections, and additional expenses.
For this reason, international buyers should not think about customs only when the goods arrive at the port of destination.
Customs planning should begin Before placing an order with the Chinese supplier.
Whether you import electronics, household goods, machinery, textiles, auto parts, packaging, or consumer products, understanding the main customs risks can help you reduce delays and better control your total import costs.
In this guide, we examine the most common customs issues when importing from China, why they occur, and how they can be prevented.
Why do customs issues arise when importing from China?
An international trade transaction typically involves various participants:
- Chinese supplier
- Purchasing Agent
- Warehouse in China
- Transitario o freight forwarder
- Shipping company or airline
- Customs broker
- Importer
- Customs authorities
The information must remain consistent throughout the entire process.
A small error on a commercial invoice can raise questions during customs clearance.
An incorrect HS code can result in an incorrect tariff classification.
The absence of a mandatory certificate may even prevent the product from entering the destination market.
In addition, regulations vary by country.
A product that is relatively easy to import into one market may require special certifications, licenses, registrations, or labeling in another.
For this reason, importers should review the requirements of the destination country before making a major purchase in China.
1. Incorrect HS code classification
One of the most common customs issues is assigning an incorrect classification to a product.
The Harmonized System, known internationally as Harmonized System o HS, is an international nomenclature used to classify goods traded internationally.
The HS code may affect:
- Customs Duties
- Import Taxes
- Trade Restrictions
- Required Documentation
- Anti-dumping Measures
- Specific Product Requirements
- Trade Statistics
Why do errors occur with the HS code?
Some Chinese suppliers provide an HS code based on previous exports.
However, that code may not necessarily be correct for your product or for the specific tariff system of the destination country.
Products that appear to be similar may be classified differently depending on:
- Material
- Function
- Construction
- Intended Use
- Technical Specifications
For example, different types of lighting, electrical components, textiles, or machinery parts may have different classifications.
How to Reduce the Risk
Before shipping:
- Get a detailed product description.
- Please confirm the materials and technical specifications.
- Check the applicable tariff classification in the destination country.
- Consult a customs agent if you have any questions.
- Keep technical documentation that supports the classification.
You should never select a code simply because it has a lower tariff.
Incorrect classification can result in tax adjustments, delays, audits, or penalties.
2. Incorrect declaration of customs value
Another major problem is misdeclaring the value of goods.
Generally speaking, international customs valuation rules use the transaction value as the primary method when the relevant conditions are met.
This value is based on the price actually paid or payable for the goods, with the adjustments required by applicable regulations.
According to the World Trade Organization's international customs valuation rules, the transaction value It is the primary valuation method when the relevant conditions are met.
The risk of reporting an artificially low value
Some buyers believe they can reduce their taxes by asking the supplier to list a lower amount on the invoice.
This practice can create significant customs risks.
Authorities may request additional information when:
- The listed price seems too low
- The invoice does not match the payment records
- The product description is too general
- There are special relationships between buyers and sellers
- There are additional charges related to the merchandise
- Certain costs have not been properly accounted for
Practical Example
Let's assume that an importer purchases:
2,000 units × $10 = $20,000
The actual commercial value of the merchandise is USD 20,000.
If the documentation lists only $8,000 without a valid justification, the authorities may question the value.
This could result in:
- Delays in shipping
- Requests for Documentation
- Value Adjustments
- Additional Tax Payment
- Possible penalties
- Higher level of inspection
Best Practice
Keep consistent documentation, including:
- Commercial Invoice
- Purchase Agreement
- Purchase Order
- Proof of Payment
- Shipping Invoices
- Insurance documents, if applicable
- Relevant Business Communications
The reported information must accurately reflect the business transaction and comply with the applicable valuation rules.
3. Incomplete or incorrect commercial invoice
The commercial invoice is one of the most important documents in an import transaction.
It is also a common source of problems.
Depending on the country, sufficient information is usually required to clearly identify the seller, buyer, goods, and transaction.
It may include:
- Seller Information
- Buyer Information
- Product Description
- Quantity
- Unit price
- Total value
- Currency
- Country of origin
- Terms and Conditions
- Important Product Information
Avoid overly general descriptions
A description such as:
“Accessories”
It's too broad.
It may also be insufficient:
“Electronic Products”
A more specific description would be:
“20 W USB-C wall charger, plastic housing, 100–240 V input.”
The clearer the description, the easier it will be to correctly identify the merchandise.
4. The packing list does not match the merchandise
The packing list or Packing List provides a physical description of the shipment.
It usually includes:
- Number of boxes
- Number of products
- Net weight
- Gross weight
- Dimensions
- Type of packaging
Problems arise when the commercial invoice, the packing list, the shipping documents, and the actual goods do not match.
For example:
Commercial Invoice:
1,000 units
Packing List:
1,050 units
Actual merchandise:
1,050 units
This discrepancy may raise questions during an inspection.
Before shipping the goods from China, the final quantities must be carefully verified.
5. Missing product certifications
Not all products can be imported and sold freely without meeting technical requirements.
Depending on the country and the product category, there may be regulations related to:
- Electrical Safety
- Electromagnetic Compatibility
- Batteries
- Wireless Devices
- Children's Products
- Medical devices
- Products in Contact with Food
- Cosmetics
- Chemicals
- Automotive Components
A Common Mistake Made by Importers
A buyer finds an attractive product on 1688 or another Chinese platform.
The price is competitive, so he places a large order right away.
When production is complete, he discovers that he needs a specific certification to sell the product in his country.
At that point, fixing the problem could be costly.
Best Strategy
Before placing your order, please ask:
- Do you need certification?
- Are laboratory tests required?
- Is there any mandatory labeling?
- Does the importer need to register?
- Are there any special restrictions?
- Are the manufacturer's certificates valid in the destination market?
It should never be assumed that a certificate provided by a Chinese supplier will automatically be valid in all countries.
6. Issues with the country of origin
The country of origin may also affect customs clearance.
Products manufactured in China must generally be correctly declared as products of Chinese origin when applicable.
Origin can influence:
- Tariff Treatment
- Trade Measures
- Labeling Requirements
- Preferential Tariffs
- Restrictions
- Customs Declarations
It is important to distinguish between:
Shipping Country
y
Country of origin
A product can be shipped from another country and still be considered of Chinese origin.
For complex products manufactured with components sourced from various countries, determining their origin may require a more detailed analysis.
7. Unexpected duties and taxes
Many new importers simply calculate:
Product price + international shipping
This calculation is incomplete.
The actual cost may include:
Product + domestic shipping within China + international shipping + insurance + duties + taxes + customs clearance + port fees + local delivery
There may also be other positions.
Example
An importer purchases:
Merchandise: USD 20,000
International transportation: USD 3,000
At first, he estimates that the cost will be approximately USD 23,000.
However, when the merchandise arrives, the following appear:
- Fees
- VAT or other taxes
- Customs Broker Fees
- Terminal Fees
- Documentation Expenses
- Local transportation
The final cost may be considerably higher.
That's why, before making a purchase, you should calculate the total cost at destination or landed cost.
8. Restricted or Prohibited Products
Not all products available in China can be legally imported into every country.
Some goods may be:
- Prohibited
- Restricted
- Subject to licensing
- Subject to special controls
- Subject to additional inspections
Depending on the market, these rules may affect certain categories such as:
- Food
- Pharmaceutical products
- Chemicals
- Medical devices
- Batteries
- Agricultural products
- Wireless Devices
- Cosmetics
- Children's Products
Please check for any restrictions before placing your order.
9. Intellectual Property Issues
Intellectual property also poses a risk to importers.
The products may violate:
- Registered trademarks
- Copyright
- Patents
- Registered Designs
Counterfeit products pose a particularly significant risk.
Just because a Chinese supplier offers a well-known brand's product at an extremely low price does not mean it can be imported legally.
Customs authorities in many countries may detain goods suspected of being counterfeit.
Buyers who develop private-label products should also conduct intellectual property checks before manufacturing large quantities.
10. Labeling Issues
Even a product that is otherwise fine can have problems due to incorrect labeling.
Depending on the market and the type of product, labels may need to:
- Product Name
- Country of origin
- Importer Information
- Safety Warnings
- Ingredients
- Material Composition
- Voltage
- Instructions
- Lot number
- Date of Manufacture or Expiration Date
There may also be language requirements.
In Latin America, certain products may require information in Spanish in accordance with applicable national regulations.
For this reason, labeling requirements should be verified before mass production begins.
11. Delays due to customs inspection
Inspections are a normal part of international trade.
An item can be selected for:
- Literature Review
- Inspection Using a Scanner
- Physical Inspection
- Product Sampling
- Value Verification
- Verification of Origin
- Regulatory Compliance Review
An inspection does not necessarily mean that the importer has committed a violation.
However, incomplete documentation can prolong the process.
Documents You Should Have Ready
- Commercial Invoice
- Packing List
- Bill of Lading or Air Waybill
- Purchase Agreement
- Proof of Payment
- Certificates
- Technical Specifications
- Test reports, as needed
Responding promptly with clear documentation can help prevent unnecessary delays.
12. Issues with the importer's registration or license
Some countries require companies or individuals to complete certain registration procedures before importing for commercial purposes.
Depending on the jurisdiction, you may need to have:
- Tax Registration
- Customs Registration
- Import License
- Product Registration
- Specific Permissions
The Chinese supplier is generally unable to fulfill these obligations on behalf of the buyer.
The importer must verify their status before shipment.
13. Misusing Incoterms
Incoterms help define the responsibilities between the seller and the buyer.
Some terms commonly used in business dealings with China are:
- EXW
- FCA
- FOB
- CIF
- DAP
- DDP
A common mistake is to believe that choosing a specific Incoterm automatically resolves all customs issues.
For example, DDP assigns the seller extensive responsibilities related to delivery and import formalities.
However, whether a foreign seller can legally act as an importer or fulfill certain tax obligations will depend on the laws of the destination country.
That is why both the Incoterms and local laws must be analyzed.
14. Problems with consolidating goods from multiple suppliers
Many international buyers purchase products from various Chinese suppliers and consolidate them in a single warehouse.
This strategy can reduce logistics costs, but it also increases the complexity of documentation.
For example:
Supplier A: Electronic Products
Supplier B: Packaging
Supplier C: Household Products
All products are shipped to a warehouse in China and then consolidated into a single international shipment.
Problems may arise when:
- An invoice is missing
- The amounts are incorrect
- The descriptions do not match
- The source information is incomplete
- The HS codes have not been properly reviewed
Therefore, a good consolidation process should include a document review before shipment.
15. Errors by the Chinese supplier
Sometimes the buyer provides the correct instructions, but the supplier ships different goods.
Some common examples are:
- Additional samples inside the boxes
- Undeclared promotional products
- Materials other than those agreed upon
- Incorrect amounts
- Incorrect labels
- Different models
Even free products must be properly reported in customs documentation when applicable.
A pre-shipment inspection can detect these problems before the goods leave China.
Case Study: Importing from China to Latin America
Let's imagine a small Latin American e-commerce company that buys household products from three Chinese suppliers.
The buyer acquires:
Supplier A: 500 kitchen products
Supplier B: 800 storage products
Supplier C: 300 home accessories
The goods are consolidated at a warehouse in Guangzhou.
Before the international shipment, the logistics team reviews the documentation and finds three issues.
Problem 1
Supplier A used a description that was too general.
Problem 2
The amount listed on Supplier B's invoice does not match the packing list.
Problem 3
Supplier C added 50 promotional samples that were not correctly reflected in the documentation.
If these problems were discovered after the goods arrived, customs clearance could become complicated.
That's why they are corrected before being sent.
The warehouse verifies:
- Quantities
- Number of boxes
- Descriptions
- Invoices
- Packaging Information
Finally, consistent documents are prepared for international transport.
A relatively simple check before shipping can prevent much more costly problems later on.
How to Avoid Customs Issues Before Importing from China
A good customs strategy begins before production.
Step 1. Research import regulations
Identify the requirements that apply to your product and country.
Check:
- Restrictions
- HS Classification
- Fees
- Taxes
- Certifications
- Tagged
Step 2. Check the product
Request complete specifications from the supplier.
Confirm:
- Materials
- Features
- Model
- Dimensions
- Electrical Specifications
- Intended Use
Step 3. Calculate the landed cost
Calculate the total cost before placing your order.
Consider the following:
- Product
- Domestic Transportation in China
- International Transportation
- Insurance
- Fees
- Taxes
- Customs Clearance
- Expenses at the destination
- Final Submission
Step 4. Review the documents
Before shipping, please check:
- Commercial Invoice
- Packing List
- Bill of Lading Information
- Certificates
- Descriptions
- Quantities
- Values
- Country of origin
Step 5. Inspect the merchandise
When appropriate, conduct a pre-shipment inspection.
Check:
- Quality
- Quantity
- Packaging
- Tags
- Cajas
- Shipping carriers
Step 6. Work with an experienced customs broker
When a product is complex or is entering a new market, working with a professional can reduce risks.
A customs broker can assist with classification, documentation, valuation, and local procedures.
Customs Checklist Before Shipping Goods from China
Before authorizing the shipment, please check:
- The HS code has been revised.
- The product description is specific.
- The commercial invoice is complete.
- The packing list matches the merchandise.
- The customs value has been correctly declared.
- The country of origin is correctly identified.
- The required certificates are available.
- The labels comply with local requirements.
- The necessary licenses are ready.
- Tariffs and taxes are estimated.
- The shipping documents are consistent.
- The intellectual property risks have been reviewed.
- Possible restrictions have been identified.
- The importer's requirements have been confirmed.
Conducting these checks does not mean that goods will never be inspected.
However, it can significantly reduce preventable problems.
Frequently Asked Questions About Customs Issues When Importing from China
Why is my shipment from China being held at customs?
Possible causes may include incomplete documentation, incorrect classification, questions regarding the declared value, certification requirements, inspections, outstanding taxes, or issues with the importer's registration.
The first step should be to identify the specific reason with the customs agent or carrier.
Can my Chinese supplier handle customs clearance?
The supplier can prepare export documents and arrange certain logistics services.
However, import requirements are set by the destination country.
The buyer should independently verify their local obligations.
Can I report a lower value to pay less tax?
The declaration must comply with the applicable customs valuation rules and accurately reflect the commercial transaction.
Artificially declaring a lower value may result in adjustments, delays, additional taxes, and penalties.
Who is responsible for determining the HS code?
The specific legal liability depends on the country and the customs procedure.
However, the importer has a strong interest in verifying that the classification used is correct.
You should not automatically trust the code provided by the vendor.
What happens if customs finds incorrect information?
The consequences depend on the country and the severity of the problem.
These may include:
- Request for Additional Documentation
- Product Reclassification
- Revaluation
- Additional duties and taxes
- Storage Costs
- Administrative Penalties
- Retention of Goods
- Confiscation in Serious Cases
Conclusion
Los Customs Issues When Importing from China In many cases, these can be avoided with proper preparation.
The main risks include:
- Incorrect HS Code
- Inaccurate customs value
- Inconsistent documentation
- Missing Certifications
- Incorrectly labeled
- Restricted Goods
- Vendor Errors
- Lack of planning for the total cost
Professional importers do not view customs as the final step in the shipping process.
They include it from the very beginning of the purchasing process.
A recommended process would be:
Product Research → Supplier Verification → Regulatory Review → HS Classification → Cost Calculation → Production → Inspection → Document Verification → International Shipping → Customs → Final Delivery
The most important rule is simple:
Resolve any potential customs issues before the goods leave China, not after they arrive at the port of destination.
Proper documentation, appropriate classification, compliance with product regulations, and realistic cost planning can make imports from China much more predictable and profitable.