The UK economy depends on imports and exports, but the customs process can feel like a minefield for businesses. From minor delays to costly mistakes, customs clearance can quickly spiral into expensive problems. A study by The Chartered Institute of Procurement & Supply (CIPS) found that 1 in 10 businesses believe a delay of just 10 minutes could push them into bankruptcy.
This is why bonded warehousing is such a valuable solution. By storing goods securely while customs paperwork and payments are resolved, bonded warehouses give businesses more time, more flexibility, and greater protection against errors.
At GWS, our bonded warehouse near the Port of Immingham helps companies streamline imports, reduce risk, and safeguard their supply chain. Below, we explore five of the most common customs clearance mistakes—and how bonded warehousing can help you avoid them.
1. Incomplete or Incorrect Documentation
Paperwork errors are one of the biggest causes of customs delays. Missing or inaccurate details on invoices, packing lists or HS codes can mean goods being held at port, rejected, or even returned.
How bonded warehouses help: With a bonded warehouse, you benefit from a 90-day deferment on submitting paperwork and paying duties or VAT. This window gives you time to get documentation right, reducing the risk of rejection and costly hold-ups.
2. Misclassification of Goods
HS Codes (Harmonised System Codes) determine the tariffs and taxes payable on imported goods. A misclassified item can result in overpayments, penalties, or fines—hurting your margins and your reputation.
How bonded warehouses help: Bonded warehouses often work with customs houses and trained specialists who can verify classifications before duties are applied. That extra layer of expertise ensures your goods are processed correctly.
3. Poor Planning Around Duties and VAT
Paying duties and VAT upfront puts immediate pressure on cash flow—especially when stock hasn’t yet been sold.
How bonded warehouses help: Goods stored in bond benefit from a 90-day deferment period before payment is due. This breathing space allows you to sell goods first and pay later, keeping your cash flow healthy.
4. Non-Compliance with Licensing and Regulations
Some goods, such as alcohol, tobacco and pharmaceuticals, face strict import controls. If declared incorrectly, these products may be seized, destroyed or returned—causing heavy losses.
How bonded warehouses help: By working with customs clearance experts, bonded warehouses ensure regulatory requirements are properly met. Should a dispute arise, your goods remain securely stored while it is resolved, reducing the risk of financial or reputational damage.
5. Choosing the Wrong Logistics Partner
Your warehousing and logistics partner plays a crucial role in the efficiency of your entire supply chain. A poor choice can mean delays, added costs, and unnecessary complications.
How bonded warehouses help: A trusted bonded warehouse does more than handle customs. With secure storage, efficient processes, and an experienced clearance team, your supply chain remains smooth from start to finish.
Why Bonded Warehousing Matters
For UK importers, efficiency is everything. Delays, disputes, and unexpected charges can seriously undermine profitability. Bonded warehousing gives you the time, security, and expert support needed to avoid mistakes and keep goods moving.
By storing imports away from the port while formalities are completed, bonded warehouses not only reduce risk but also protect your business from unnecessary financial strain. The added expertise of customs specialists ensures duties are paid accurately and on time, while deferred payments help improve cash flow.
A Secure Bonded Warehouse in Immingham
As the UK’s largest port by tonnage, the Port of Immingham handled 46 million tonnes of goods in 2024. Located just one mile from the port, GWS offers a secure bonded warehouse that gives your business immediate access to premium storage and fast customs clearance.
Our partnership with GB Customs Clearance Ltd—who work directly on-site—means your goods can be processed quickly and correctly, without unnecessary disruption to your supply chain.
If you’re importing goods into the UK and need a bonded warehouse you can rely on, speak to the GWS team today for a free quote.