What Are the Common Challenges in International Freight Shipping

Every year, millions of tonnes of goods cross international borders — yet for many UK businesses, the process of moving freight overseas remains one of the most operationally complex undertakings they face. Whether you are a manufacturer exporting finished products, a retailer sourcing goods from overseas suppliers, or a logistics manager coordinating a multi-leg supply chain, international freight shipping presents a unique and layered set of challenges that can disrupt timelines, inflate costs, and create compliance risks.

Understanding these challenges is the first step towards managing them effectively. This guide examines the most common problems encountered in international freight shipping, explains why they occur, and offers practical guidance on how businesses can better prepare for and mitigate their impact.

1. Navigating Customs Clearance and Regulatory Compliance

One of the most frequently cited challenges in international freight shipping is customs clearance. Every country maintains its own import and export regulations, tariff schedules, and compliance requirements. For UK businesses trading post-Brexit, the landscape has become significantly more complex, with additional declarations required for shipments to and from the European Union.

Customs delays can arise for numerous reasons, including incomplete or inaccurate documentation, incorrect tariff classification of goods, failure to comply with import restrictions, or simply the backlog at busy port facilities. A single error on a commercial invoice or packing list can result in a shipment being held at customs for days or even weeks, with demurrage charges accumulating in the meantime.

Key Compliance Areas to Address

• Commodity codes (HS codes): Assigning the correct Harmonised System code to each product is essential for accurate duty calculation and smooth clearance.
• Rules of origin: Determining where goods have been manufactured affects whether preferential tariff rates apply under various trade agreements.
• Import licences and permits: Certain categories of goods — including foodstuffs, chemicals, pharmaceuticals, and textiles — may require specific licences before they can be legally imported.
• Sanctions and embargoes: Businesses must ensure they are not trading with sanctioned individuals, entities, or countries, which requires ongoing due diligence.

Working with a qualified customs broker or freight forwarder familiar with UK and international trade law can significantly reduce the risk of compliance failures and associated delays.

2. Documentation Errors and Incomplete Paperwork

International freight shipping is heavily documentation-dependent. From the bill of lading and commercial invoice to certificates of origin, packing lists, and export health certificates, each shipment may require a substantial dossier of paperwork — and every document must be accurate, consistent, and complete.

Documentation errors are surprisingly common and can have serious consequences. A mismatch between the declared weight on a packing list and the actual weight of the shipment, for example, can trigger an inspection or lead to penalties. Similarly, a missing or incorrectly completed certificate of origin can result in a shipper losing access to preferential duty rates, costing the business significantly more in tariffs.

Common Documentation Pitfalls

• Incorrect or missing shipper and consignee details
• Goods descriptions that are vague, ambiguous, or inconsistent across documents
• Incorrect valuation of goods (under-declaring value to reduce duties is both illegal and risky)
• Failure to include required declarations for hazardous materials (IATA or IMDG compliance)
• Delays in obtaining third-party documents, such as phytosanitary certificates for plant-based products

Implementing a robust document management process — ideally supported by digital freight management software — can significantly reduce the incidence of paperwork errors and the disruption they cause.

3. Shipping Delays and Transit Time Uncertainty

Transit time reliability is a persistent challenge in global logistics. While carriers and freight forwarders provide estimated delivery windows, numerous factors can cause shipments to arrive later than anticipated. Port congestion, adverse weather conditions, vessel schedule changes, customs inspections, and equipment shortages all contribute to unpredictable transit times.

For businesses operating on just-in-time manufacturing models or those with seasonal stock requirements, unexpected delays can have a cascading effect on production schedules, customer commitments, and ultimately, revenue.

The disruptions caused by the COVID-19 pandemic offered a stark illustration of just how vulnerable global supply chains can be when multiple factors converge simultaneously.

Causes of Freight Delays

• Port congestion: Major hubs such as Felixstowe, Rotterdam, and Los Angeles regularly experience bottlenecks that slow vessel turnaround times.
• Equipment shortages: Container imbalances — particularly when empty containers accumulate in one region while another faces shortages — can disrupt shipping schedules significantly.
• Weather disruptions: Seasonal storms, extreme weather events, and canal closures (as seen with the Suez Canal incident in 2021) can affect entire shipping lanes.
• Labour disputes: Industrial action at ports or among transport workers can cause sudden and severe disruptions to freight movement.
• Customs holds: Random or targeted inspection programmes at ports of entry can add days to a shipment's journey.

Building contingency time into supply chain planning, maintaining safety stock where feasible, and diversifying carrier relationships can all help businesses absorb delays without catastrophic consequences.

4. Rising and Unpredictable Freight Costs

Freight costs are subject to considerable volatility, driven by fuel prices, carrier capacity, demand surges, and geopolitical developments. For UK businesses engaged in import export operations, managing freight expenditure is one of the most financially significant logistical challenges they face.

The dramatic spike in container shipping rates between 2020 and 2022 — during which spot rates for key trade lanes increased by several hundred per cent — demonstrated just how exposed businesses can be to sudden freight cost escalation. Rates have since moderated, but the period highlighted the importance of robust freight cost management strategies.

Factors Driving Freight Cost Volatility

• Bunker fuel prices: Shipping lines pass fluctuations in fuel costs to customers through surcharges known as bunker adjustment factors (BAF).
• Carrier capacity: When demand exceeds available vessel capacity, rates rise sharply. Conversely, overcapacity drives rates down but may affect service reliability.
• Peak season surcharges: Periods of high demand — particularly ahead of major retail events — attract premium freight rates.
• Currency fluctuations: As freight is often priced in US dollars, exchange rate movements can significantly affect the sterling cost of shipping for UK businesses.
• Geopolitical events: Conflicts, trade disputes, and sanctions can redirect shipping lanes, increase transit distances, and inflate costs.

Strategies to manage freight cost exposure include negotiating long-term rate agreements with carriers, consolidating shipments to achieve economies of scale, and using freight procurement platforms that provide market rate visibility and benchmarking.

5. Understanding and Applying Incoterms Correctly

Incoterms — International Commercial Terms — are a standardised set of trade rules published by the International Chamber of Commerce that define the responsibilities of buyers and sellers in international transactions. Despite their widespread use, they are frequently misunderstood or incorrectly applied, leading to costly disputes and unexpected liabilities.

For example, a UK buyer purchasing goods under DDP (Delivered Duty Paid) terms is not responsible for import duties or the logistics of getting the goods through customs — the seller bears those costs and risks. However, a buyer operating under EXW (Ex Works) terms takes on responsibility for the shipment from the moment goods are ready at the seller's premises, including all export clearance. Choosing the wrong Incoterm can result in a business unexpectedly bearing costs it had not budgeted for.

Most Commonly Misapplied Incoterms

• EXW (Ex Works): Often chosen by sellers for its simplicity, but it places the maximum burden on the buyer, including export clearance — which buyers may not be equipped to manage.
• FOB (Free On Board): Widely used but frequently misapplied to containerised shipments, where FCA (Free Carrier) is more appropriate.
• DDP (Delivered Duty Paid): Beneficial for buyers but may expose sellers to import compliance risks in countries where they have no legal presence.

Seeking guidance from a freight forwarder or trade lawyer when negotiating contracts can prevent costly misunderstandings around responsibility for freight, insurance, and customs.

6. Cargo Security and Theft

The security of goods in transit is a significant concern in international freight shipping. Cargo theft — whether at ports, warehouses, or during road transport — causes billions of pounds in losses globally each year. High-value goods such as electronics, pharmaceuticals, and luxury items are particularly attractive targets.

Beyond outright theft, goods may be subject to tampering, pilferage, or damage caused by improper handling.

Cross-border shipments that pass through multiple modes of transport and handling points are inherently more vulnerable than domestic deliveries.

Security Measures Worth Implementing

• Use tamper-evident seals on containers and pallets
• Choose carriers and freight forwarders with verified security accreditations (e.g., AEO status in the UK)
• Avoid publishing detailed shipment schedules on unsecured platforms
• Request GPS tracking for high-value shipments
• Vet all supply chain partners, including third-party logistics providers and customs agents

7. Cargo Insurance and Risk Management

Despite the best planning, goods can be lost, damaged, or destroyed in transit. International freight shipments face risks ranging from rough seas and container collapses to fire, contamination, and road accidents. Without adequate cargo insurance, a business can face substantial financial loss with no means of recovery.

Many businesses incorrectly assume that carrier liability covers the full value of their goods. In practice, carrier liability under standard terms — whether based on the Hague-Visby Rules for sea freight or the Montreal Convention for air freight — is typically limited to a relatively low per-kilogramme rate that bears no relation to the actual commercial value of the goods.

Obtaining comprehensive all-risk cargo insurance, tailored to the specific nature and value of goods being shipped, is strongly advisable for any business engaged in cross-border shipping. Businesses should also review policy exclusions carefully, as certain commodities, packaging standards, and shipping routes may affect coverage.

8. Supply Chain Visibility and Communication

A persistent frustration for importers and exporters alike is the lack of real-time visibility over where their shipments are at any given point in the supply chain. While tracking technology has improved considerably in recent years, many freight movements — particularly those involving multiple carriers, transshipment ports, or inland transport legs — still suffer from significant gaps in information.

Poor communication between suppliers, freight forwarders, customs authorities, and receivers can result in missed deadlines, unexpected demurrage charges, and difficulties in planning downstream operations such as warehouse receiving or production scheduling.

Improving Visibility

• Use freight management platforms that integrate with carrier tracking systems
• Establish clear communication protocols with all supply chain partners
• Request milestone updates at key points — departure, transshipment, arrival at port, customs clearance, final delivery
• Consider digital freight forwarding platforms that offer end-to-end visibility dashboards

9. Environmental Regulations and Sustainability Pressures

The freight and logistics sector is under increasing pressure to reduce its environmental impact, and international shipping is no exception. The International Maritime Organisation (IMO) has set ambitious targets for reducing greenhouse gas emissions from shipping, and new regulations — such as the Carbon Intensity Indicator (CII) and the IMO's Energy Efficiency Existing Ship Index (EEXI) — are already affecting how carriers manage their fleets and price their services.

For UK businesses, sustainability in the supply chain is increasingly a matter of regulatory obligation as well as commercial expectation. Customers, investors, and regulators alike are scrutinising

the carbon footprint of freight operations, and businesses that cannot demonstrate responsible sourcing and logistics practices may find themselves at a competitive disadvantage.

Practical steps businesses can take include measuring and reporting freight emissions, consolidating shipments to reduce the number of individual movements, choosing carriers that invest in lower-emission vessels or sustainable aviation fuels, and exploring near-shoring options that reduce overall transport distances.

10. Language Barriers and Cultural Differences

International trade inherently involves communication across linguistic and cultural boundaries. Misunderstandings arising from language barriers — whether in written contracts, shipping instructions, or verbal communications — can lead to errors that are difficult and costly to resolve once a shipment is already in motion.

Cultural differences also play a role. Business practices, expectations around punctuality, approaches to negotiation, and attitudes towards contractual obligations vary significantly between countries and regions. A UK business dealing with suppliers in East Asia, the Middle East, or South America may encounter very different communication styles and commercial norms from those it is accustomed to domestically.

Investing in cultural awareness training, working with locally based agents or representatives where possible, and ensuring that all contractual and operational documents are professionally translated can help reduce friction in international business relationships.

Final Thoughts

International freight shipping is an indispensable function for UK businesses operating in the global marketplace, but it is rarely straightforward. From customs compliance and documentation accuracy to cost volatility, transit delays, and evolving environmental obligations, the challenges are both varied and significant. Businesses that invest in understanding these complexities — and in building robust processes and partnerships to manage them — are far better positioned to trade internationally with confidence and efficiency.

For businesses looking to strengthen their overall market presence alongside their logistics operations, visibility is just as important online as it is in the supply chain. Listing your business in reputable local business directories UK — such as Local Page UK — can help freight, logistics, and trade-related businesses improve their discoverability among local and national clients searching for services. Whether you are exploring the best business directories UK has to offer or looking for a reliable small business directory UK to establish your online presence, ensuring your company appears in a trusted business directory in UK platforms is a practical step towards greater commercial visibility in an increasingly competitive market.

Questions Clients Commonly Ask

What is the most common cause of delays in international freight shipping?

The most common causes of delay include port congestion, incomplete or inaccurate customs documentation, and vessel schedule disruptions due to weather or equipment shortages. Ensuring paperwork is correct before a shipment departs is one of the most effective ways to avoid unnecessary hold-ups at customs.

Do UK businesses need a customs broker for international shipments post-Brexit?

While it is not a legal requirement to use a customs broker, it is strongly advisable — particularly for businesses without dedicated trade compliance expertise. Post-Brexit, all goods moving between Great Britain and the European Union require customs declarations, and errors can result in delays, fines, and additional costs. A qualified customs broker can manage this process on your behalf and ensure ongoing compliance.

What is cargo insurance and is it mandatory for international shipments?

Cargo insurance covers the financial loss arising from damage, theft, or destruction of goods during international transit. It is not legally mandatory, but carrier liability under standard shipping contracts is typically very limited — often far below the commercial value of the goods. For this reason, taking out comprehensive all-risk cargo insurance is strongly recommended for any business engaged in cross-border freight shipping.

How can UK businesses reduce international freight costs?

Practical cost-reduction strategies include consolidating smaller shipments into full container loads where volumes allow, negotiating long-term rate agreements with carriers, using freight procurement platforms

to benchmark market rates, reviewing packaging to reduce dimensional weight charges, and optimising routing to minimise transit times and handling costs.

What are Incoterms and why do they matter?

Incoterms (International Commercial Terms) are internationally recognised rules that define the responsibilities of buyers and sellers for the delivery of goods under sales contracts. They determine who is responsible for freight costs, insurance, export and import clearance, and the point at which risk transfers from seller to buyer. Selecting the appropriate Incoterm for each transaction is essential to avoid unexpected cost liabilities and disputes.

Disclaimer: The information provided in this article is for general informational and research purposes only. Company details, features, services, and market positions may change over time. Readers are advised to visit official company websites and conduct independent research before making any business decisions or purchasing services.