One of the biggest headaches for cross-border sellers is customs clearance delays. A single hold-up can lead to longer shipping times, unexpected costs, and unhappy customers.
To help you avoid these issues, we’ve put together 10 common reasons for delays and 5 practical solutions to keep your shipments moving smoothly and on time.
10 COMMON REASONS
FOR CUSTOMS DELAYS

01. Incomplete or Incorrect Documentation
If any required documents — such as commercial invoices, packing lists, or certificates of origin — are incomplete or inaccurate, customs may hold your shipment. This can include missing signatures, wrong item descriptions, or omitted values.
02. Misdeclared Goods
Customs requires that goods are accurately declared. If the description, quantity, or value of goods on the paperwork doesn’t match what’s inside, customs will likely flag your shipment for further inspection, leading to delays.
03. Restricted or Prohibited Goods
Certain products require special permits to be imported or are outright prohibited. This includes items like pharmaceutical products, chemicals, and certain foodstuffs. If your shipment contains restricted goods and you don’t have the necessary paperwork, customs will hold it until the issue is resolved.
04. Unpaid Duties or Taxes
Failure to pay customs duties or taxes on time can cause delays. Customs often won’t release goods until all dues are settled. Incorrect calculations of duties or taxes can also lead to hold-ups.
05. Non-Compliant Packaging
Countries have specific regulations for packaging. If your goods don’t meet these requirements, such as improper labeling or insufficient protection, customs may hold your shipment for repackaging or further inspection.
06. Random Customs Inspections
Even if all documents are in order, customs may randomly select shipments for physical inspection. This can delay clearance as the contents of the goods are examined for compliance.
07. Missing or Incorrect Import Permits
Some shipments require special import permits or licenses, especially for regulated goods like electronics, chemicals, or medical supplies. If these permits are not provided or are incomplete, customs will withhold the goods.
08. Incorrect Tariff Classification
Customs uses Harmonized System (HS) codes to determine duties and taxes. If your goods are classified under the wrong code, customs may delay clearance until they sort out the discrepancy.
09. Failure to Meet Country-Specific Regulations
Each country has its own customs regulations. Failure to comply with specific requirements, such as health certifications, safety standards, or documentation for controlled items — can lead to delays.
10. Late Payment to Customs Broker or Freight Forwarder
If your customs broker or freight forwarder has not received payment for their services, they may delay the processing of your shipment. This can prevent your goods from clearing customs until payment is received.
5 PRACTICAL SOLUTIONS

01. Ensure Complete & Accurate Documentation
What you can do: Double-check that all paperwork is completed accurately and includes all required information.
Key documents include:
- Commercial invoices with precise descriptions and values
- Packing lists that match the shipment
- Certificates of origin for regulated products
- Import/export permits if required
* Why this matters: Correct documentation prevents customs from flagging your shipment for errors. Work with a logistics provider who understands the intricacies of international shipping documentation to avoid unnecessary delays.
02. Partner with a Professional Customs Broker
What you can do: Enlist the help of an experienced customs broker who can ensure your goods comply with all customs regulations.
A broker can:
- Review and prepare accurate documentation
- Ensure your goods are classified correctly using the right HS codes
- Provide expert advice on restricted goods and import permits
* Why this matters: Customs brokers have the expertise to quickly resolve issues that may cause delays, allowing your shipment to clear customs with minimal hassle.
03. Declare Goods Accurately and Fully
What you can do: Be thorough and transparent when declaring your goods. Provide accurate descriptions, quantities, and values for all items. If you’re shipping restricted goods, make sure to include the necessary permits and certifications.
* Why this matters: Misdeclaring your goods can lead to penalties, holds, or even shipment rejection. Clear and accurate declarations ensure customs officials have the right information to process your shipment quickly.
04. Pay Duties and Taxes Early
What you can do: Calculate and settle any applicable customs duties and taxes before your shipment arrives at customs. Many logistics providers offer tools to help you calculate these fees accurately.
* Why this matters: Unpaid duties or taxes are one of the leading causes of customs delays. Settling these costs early ensures your shipment is cleared promptly upon arrival.
05. Comply with Packaging & Local Regulations
What you can do: Make sure your goods are packaged in accordance with the destination country’s packaging and labeling requirements. Some countries have very specific rules, especially for perishable goods, hazardous materials, or electronics. Also, ensure that health and safety certifications, when required, are included.
* Why this matters: Non-compliant packaging or missing certifications can lead to lengthy inspections or repackaging, delaying your shipment’s release. By preparing goods according to local regulations, you reduce the risk of unnecessary delays.
How We Help You Overcome Customs Delays
We specialize in helping businesses navigate the complexities of international shipping and customs clearance. Here’s how we ensure your shipments clear customs efficiently:
- Expert Customs Support:
Our experienced team ensures that all documentation is in order, and we proactively identify any potential customs issues. - Customs Broker Partnerships:
We work with trusted customs brokers who are experts in local regulations, ensuring that your goods clear customs as quickly as possible. - Comprehensive Compliance Checks:
From packaging to import permits, we ensure that your shipments meet all regulatory requirements, minimizing the chances of delays.
Facing customs issues?
Contact our expert team — we’ll ensure smooth clearance and fast delivery.
ASI Logistics, strong of 17 years of expertise, provides you with the most adapted logistic solution to fit your needs and ensure you enjoy the benefits of smooth operations.
Thanks to our seven offices, including five conveniently located on China's east coast logistic hubs (Shanghai, Ningbo, Xiamen, Ningbo, and Hong Kong), its two branches in Ho Chi Minh City, Vietnam, and Phnom Penh, Cambodia, and its worldwide network of logistic experts, ASI Logistics accompanies you at every step of your product's journey from, to and within Asia.
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