Top 5 Common Mistakes in UK Customs Clearance and How to Avoid Them
- Mukhtar Hussain
 - Jul 23
 - 3 min read
 
UK customs clearance can be tricky, even for seasoned freight handlers and exporters. Many make simple mistakes that lead to penalties, storage delays, and rejected entries. Knowing about these common errors can save you both time and money. Below, we spotlight the top five mistakes and how to steer clear of them, ensuring your customs clearance process runs without a hitch.

1. Wrong HS Codes
One of the most common blunders importers make is using incorrect Harmonized System (HS) codes. A report by the UK Trade Policy Observatory found that as much as 30% of importers incorrectly classify their goods, which can lead to serious consequences.
Using the wrong HS codes may result in:
Cargo rejections
Over- or under-payment of duties
Significant delays at ports
To avoid these pitfalls, verify HS codes with care. Utilize AI-based HS code verification tools and higher cooperation among team members. This diligence can prevent costly complications and ensure accurate declarations.
2. Missing or Invalid EORI Numbers
Every UK importer and exporter must have a valid Economic Operators Registration and Identification (EORI) number. Not having one can cause delays that frustrate both your operations and your clients.
To ensure compliance, make sure that:
Your EORI number is valid and corresponds with your company name
If you trade between the EU and the UK, you have both EU and GB EORI numbers
Inaccurate EORI numbers can lead to hold-ups in shipments. A survey by the UK Customs Authority revealed that 25% of customs delays are attributed to invalid EORI numbers. Always double-check your EORI status before beginning the customs process.
3. Incomplete Commercial Invoices
Customs authorities are increasingly strict about the details in commercial invoices. An outdated or incomplete invoice can create friction in the clearance process.
Your commercial invoice should include:
Full and clear product descriptions
Accurate currency and declared value
Detailed origin information
Offering pre-checks for invoices can help importers identify errors before submission. This proactive step can save significant time and prevent delays, smoothing your passage through customs. In fact, complete invoices can shorten the clearance process by up to 40%.
4. Last-Minute Declarations
Timing is key when it comes to customs clearance. Last-minute declarations can lead to missed shipments and lengthy queues at border terminals. This is especially true for those using Goods Vehicle Movement Service (GVMS) routes.
Planning your customs process ahead of time is crucial. Delaying submissions often causes a chain reaction of complications that could have been avoided with better timing. Strive to finalize and submit your declarations well before your planned shipment date, ideally one to two days in advance.
5. No Coordination With Your Agent
Poor communication between importers and customs agents often leads to delays and misunderstandings. Without proper coordination, key information may not be shared promptly, which can be detrimental to the clearance process.
To avoid these setbacks, find ways to improve communication, such as:
Keeping updates ongoing with your agent
Designating a specific contact for queries
Utilizing tools like WhatsApp for quicker exchanges
Being proactive in coordination will help make your customs clearance process smoother and more efficient.
Final Thoughts
Tackling UK customs clearance doesn't have to feel intimidating. By recognizing these familiar mistakes and following best practices, you can minimize disruptions and save valuable time and resources.
Engaging with knowledgeable customs clearance services can add another layer of support, ensuring that your shipments comply with all legal requirements. This partnership can help you avoid penalties, delays, and rejections, leading to a more seamless customs experience.
For tailored assistance:
📍 Compliant with CDS & GVMS
🚛 Comprehensive pickup, clearance, and last-mile delivery
🛫 Air cargo bookings through major UK airports
For inquiries, reach out to us at 📧 contact@ukcargoclearance.com or
📞 +44 7377 964016. You can also message us on WhatsApp for immediate support.


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