You ship thousands of parcels a day from Shenzhen to Dutch consumers. The online shop is running, logistics seem sorted, but suddenly you get alerts about blocked consignments, supplementary assessments and angry customers. What went wrong?

For Asian e-commerce players entering Europe, customs pitfalls are everywhere. A missed HS code, an incorrect value declaration or uncertainty about VAT obligations can lead to costly delays, fines and reputational damage. In 2024, across the whole of the EU, an average of 13 products per 1 million released products were rejected due to non-compliance and risks to users. In this article, we discuss eight common customs pitfalls and how to avoid them.

Pitfall 1: underestimating European customs e-commerce rules

Many Asian online shops think Europe is one market with one set of rules. Nothing could be further from the truth. Each country has its own customs authorities, systems and interpretations. The Netherlands uses customs systems such as DECO/DMS and Portbase as a port community system; Belgium uses different interfaces. Expecting that a single declaration will work everywhere leads to errors.

On top of that, the rules keep changing. Since 1 July 2021, imports of goods under €150 require VAT to be declared. This can be done via IOSS or local representation. If you do not arrange VAT payment, parcels get stuck at customs. Consumers receive supplementary charges and complain. Your brand suffers.

Make sure you understand the requirements per country. Work with a local customs broker who knows the systems. Automate where possible, but stay alert to updates.

Pitfall 2: incorrect or incomplete product data

An incorrect HS code is the quickest route to trouble. Asian sellers sometimes enter a generic code or copy one from another product. That works until customs checks. Then come supplementary assessments, fines or even seizure.

Incomplete descriptions are another trap. “Electronics” or “Gifts” are too vague. Customs wants to know: what exactly is it, what material, what intended use? Without those details, the declaration cannot be approved.

Invest in accurate product data. Use TARIC to find the correct HS code. Ensure your systems automatically send this data to your customs software. That way you avoid manual errors and speed up processing.

Pitfall 3: lack of clarity on VAT and import duties

Many Asian online shops do not fully understand European VAT rules. They think the customer always pays, or that no VAT is due below a certain value. Since 1 July 2021, that has changed. For consignments up to €150 you must remit VAT. This can be done for example via IOSS or by appointing a fiscal representative.

If you do not remit VAT, consignments will be blocked. The customer then has to pay VAT and administration fees anyway. That leads to negative reviews and returns. You also risk fines from the tax authorities.

Sort your VAT obligations in advance. Register for IOSS or work with a partner who can handle it for you. Ensure your systems calculate VAT correctly and show it on the declaration. Transparency prevents surprises.

Pitfall 4: no real-time visibility on shipment status

Without real-time insight, you do not know where your parcels are. Are they stuck at customs? Have they been cleared? Do you need to provide extra documents? Many Asian sellers rely on their logistics partner, but only hear about issues days later.

That delay costs time and money. Customers get impatient. Your customer service is flooded with queries. Meanwhile, storage and admin costs mount.

Choose customs software with real-time tracking. Systems connected to DMS and other European platforms provide instant updates. That lets you act proactively when issues arise and keep customers informed.

Pitfall 5: not using bonded warehouse facilities

A bonded warehouse offers major benefits for e-commerce players. You can import goods without paying customs duties and VAT immediately. Duties are only settled when the order is released to the customer. That improves cash flow and speeds up delivery within Europe.

Yet many Asian sellers do not use this. They ship everything directly from Asia, leading to longer lead times and higher costs. You also face greater risk of customs checks and delays.

Consider a bonded warehouse in the Netherlands or Belgium. You can hold stock closer to the customer, deliver faster and respond more flexibly to demand. Work with a partner experienced in these facilities and with the right licences.

Pitfall 6: manual processes and lack of systems integration

Many Asian online shops operate with disconnected systems. The webshop, warehouse, carrier and customs broker all use their own software. Data has to be retyped manually, causing errors and delays.

An incorrect value, a missing HS code or a typo in the recipient’s name can block a declaration. Then you have to resubmit everything, which takes time and frustrates the customer.

Invest in systems integration. Connect your webshop, WMS and customs software. Data will then flow automatically and errors are prevented. Cloud-based solutions make this simpler and scalable.

Pitfall 7: insufficient knowledge of DECO and other European systems

Europe uses specific customs systems such as DECO for electronic declarations. If you are not familiar with them, you will get stuck. Asian sellers who try to lodge declarations themselves without knowledge of these systems make mistakes that lead to rejections.

Systems also change regularly: new versions, different requirements, tighter controls. If you do not keep up, you fall behind.

Work with a customs broker who knows the European systems. They will ensure your declarations are submitted correctly and on time. That way you avoid delays and fines.

Pitfall 8: no plan for post-clearance audits and compliance

Customs does not only check at import. They can also review your records afterwards. Did you declare the right values? Are the HS codes correct? Has VAT been properly remitted? Without solid records, you risk supplementary assessments and fines.

Many Asian sellers think they are done once a declaration is approved. But customs can audit up to five years back. Without proper documentation, you are exposed.

Maintain robust records. Keep all invoices, waybills and customs documents. Use software that archives everything automatically. That way you are prepared for any audit and can demonstrate compliance.

How do you avoid these pitfalls?

The eight pitfalls we discussed have one thing in common: they can be avoided with the right knowledge, systems and partners. Invest in customs software that provides real-time insight, automatically validates data and integrates with European systems. Work with an experienced customs broker who knows the local rules and can guide you.

Make sure your product data is in order, your VAT obligations are arranged and you use facilities such as a bonded warehouse. Automate where possible and keep your records up to date. This builds a solid foundation for growth in Europe without customs surprises.

Note: Customs rules in the Netherlands change regularly. This article reflects the regulations as at 18/02/2026. Always check the current requirements with the customs authorities or an authorised customs broker.

FAQ

What does IOSS mean and when should I use it for shipments to Europe?

IOSS is a scheme under which VAT on imported goods up to €150 can be declared and paid. Since 1 July 2021 sellers or their representatives must arrange this VAT; otherwise parcels may be held and the customer may be charged additional assessments. Register for IOSS or work with a fiscal representative to avoid surprises and fines. Check the current rules (status 18/02/2026).

How do I avoid customs problems caused by an incorrect HS code?

Use TARIC and detailed product data to assign the correct HS code. Avoid generic descriptions like “Electronics”; specify material, function and intended use. Automate sending the correct codes from your systems to customs software to prevent manual input errors, additional charges and seizure.

Why is real-time visibility of shipments crucial for e‑commerce from Asia?

Without real-time tracking you won’t know if parcels are held by customs or require extra documents. That leads to delays, unhappy customers and higher storage costs. Choose customs software connected to DMS/Portbase and other European platforms so you can act proactively and keep customers accurately informed.

What are the advantages of a bonded warehouse in the Netherlands or Belgium?

A bonded warehouse lets you import goods without immediately paying customs duties and VAT; costs are only settled on release. This improves cash flow, speeds up deliveries and reduces customs delays. For Asian webshops it’s a way to hold stock closer to customers and respond more flexibly to demand.

How does system integration prevent customs and logistics errors?

Linking your webshop, WMS, carrier and customs software prevents manual entry mistakes such as wrong values or missing HS codes. Automated data flows ensure consistency, faster declarations and fewer rejections. Cloud‑based integration makes scalability and real‑time validation easier.

How do I prepare for post‑clearance audits by customs?

Keep complete records: invoices, waybills and customs documents, and use software that automatically archives them. Customs can audit transactions going back several years for correct values, HS codes and VAT payment. A structured record‑keeping and compliance process minimises the risk of additional assessments and fines.

What should I look for when choosing a customs broker or partner?

Choose a partner experienced in local European systems (DMS, Portbase, DECO), knowledgeable about IOSS and bonded warehouses, and able to integrate with your IT. Ask about real‑time tracking, automatic data validation and e‑commerce references. An experienced broker helps prevent errors, fines and reputational damage.