UK customs clearance is the process by which goods imported into Great Britain from overseas — including China and Vietnam — are declared to HMRC, assessed for duty and VAT, and officially released for entry into the UK. Since Brexit, every commercial consignment entering Great Britain from outside the UK requires a full customs declaration, regardless of value or origin country.
Customs clearance is one of the most legally consequential parts of the import process, and one that many UK businesses underestimate until they encounter a problem. A shipment stuck at Felixstowe or Southampton generates port storage charges that accumulate by the day. A customs declaration filed with the wrong commodity code can result in HMRC demanding additional duty, launching an audit, or — in cases of deliberate mis-declaration — pursuing criminal prosecution. Conversely, a well-prepared importer who understands how UK customs works can move goods through the border efficiently, claim all applicable duty reliefs, and recover import VAT on their next VAT return.
Since the UK’s departure from the European Union, all goods entering Great Britain (England, Scotland, and Wales) from overseas — including goods from China, Vietnam, and other Asian sourcing destinations — are subject to a full UK customs import procedure. This is administered by HMRC using the Customs Declaration Service (CDS), which replaced the older CHIEF system. Northern Ireland has a different arrangement under the Windsor Framework and should be treated separately for customs purposes.
| Step | What Happens | Who Is Responsible |
|---|---|---|
| 1. Goods Arrive at UK Port | Vessel arrives at Felixstowe, Southampton, or other UK port. Container is placed in the port terminal. | Shipping line / port operator |
| 2. Import Declaration Filed | Customs declaration submitted to HMRC via Customs Declaration Service (CDS) with commodity codes, customs value, and all required documents. | Customs broker / freight forwarder |
| 3. HMRC Checks Declaration | HMRC reviews the declaration. Most are cleared electronically in seconds. Some are flagged for document checks or physical examination. | HMRC |
| 4. Duty and VAT Assessed | Import duty (calculated on CIF value × duty rate) and import VAT (20% on duty-inclusive value) are calculated and payment demanded. | HMRC / importer |
| 5. Goods Released | Once the declaration is accepted and duty/VAT paid (or deferred), goods are released from the port for collection. | Port operator / importer |
| 6. Delivery to UK Warehouse | Released cargo is collected from the port terminal and delivered to the importer’s UK warehouse or fulfilment centre. | Haulier / importer |
To clear goods through UK customs, importers must have the following in place:
Port storage charges at Felixstowe and Southampton accumulate from the moment a container is ready for collection. Delays in filing customs declarations, obtaining missing documents, or paying duty can result in significant demurrage and detention charges that add hundreds or thousands of pounds to your import cost. Ensure your customs broker has all required documents at least 24–48 hours before vessel arrival to avoid preventable delays.
UK importers who import goods regularly can apply for a Duty Deferment Account with HMRC, which allows them to defer payment of import duty and import VAT to a monthly direct debit rather than paying each shipment individually. This significantly reduces the cash flow impact of importing. Separately, certain duty reliefs may apply to your imports:
We ensure your Chinese or Vietnamese factory prepares all required export documentation correctly — commercial invoice, packing list, certificate of origin, and any product compliance certificates — before goods are loaded, reducing the risk of customs delays at the UK border.
We help you identify the correct 10-digit commodity code for your products, ensuring accurate duty calculation and avoiding HMRC mis-classification penalties.
We work with a vetted network of UK-licensed customs brokers and freight forwarders who specialise in China-UK import routes and can handle your customs clearance efficiently at Felixstowe or Southampton.
For goods sourced from Vietnam, we help ensure the correct certificate of origin documentation is in place to claim preferential UKVFTA duty rates at UK customs.
While it is legally possible to file your own UK customs declaration, the vast majority of UK importers use a licensed customs broker or freight forwarder to handle clearance on their behalf. The Customs Declaration Service requires specialist software access and a detailed understanding of UK tariff classifications, customs valuation rules, and document requirements. Errors in declarations can result in HMRC penalties, delayed goods, and additional duty demands. Most UK freight forwarders include customs clearance as part of their service, charging a fee of approximately £50–£150 per declaration. For regular importers, the cost of using a customs broker is very small relative to the risk and complexity of self-clearance.
An EORI (Economic Operator Registration and Identification) number is a unique identifier issued by HMRC that is required by all businesses importing goods commercially into the UK. It appears on all UK import declarations and identifies you as the importer of record. You can apply for a UK EORI number for free through the gov.uk website — it is typically issued within 5–7 working days. Your EORI number is formatted as “GB” followed by your VAT registration number and three zeros (e.g. GB123456789000) if you are VAT-registered, or as a standalone number if you are not VAT-registered. You cannot legally import goods commercially into the UK without an EORI number.
The standard documents required for UK customs clearance of goods from China are: a commercial invoice (showing buyer, seller, goods description, quantity, unit price, total value, currency, and Incoterms); a packing list (detailing carton quantities, weights, dimensions, and contents); the bill of lading (for sea freight) or air waybill (for air freight) issued by the carrier; and, if applicable, a certificate of origin (required when claiming a preferential duty rate under the UKVFTA or another UK trade agreement). Additional documents may be required for regulated products, including UKCA test reports, food safety certificates, or phytosanitary certificates for products of plant origin.
HMRC Border Force can select any import declaration for a physical examination of the goods at the port. This typically involves a Border Force officer opening cartons and inspecting the contents against the declared goods description, value, and quantity. Physical examinations are more common for first-time importers, shipments with inconsistent documentation, goods in high-risk categories, or shipments flagged by HMRC’s risk profiling systems. If your goods are selected for examination, they will be held at the port until the examination is complete and clearance is granted. The cost of unloading and re-loading the container for examination is typically borne by the importer. Having accurate, complete, and consistent documentation significantly reduces the likelihood of being selected for examination.
Yes — if you are VAT-registered in the UK, you can reclaim import VAT paid on goods imported from China (or any other country) as input tax on your VAT return, provided the goods are used for VAT-taxable business purposes. Import VAT is declared on your VAT return using the C79 monthly certificate issued by HMRC, which confirms the import VAT paid in the previous month. The import VAT itself is separate from the import duty — duty is never reclaimable and represents a genuine additional cost of importing. Non-VAT-registered businesses (typically those with turnover below the £85,000 VAT registration threshold) cannot reclaim import VAT, making it a real additional cost to factor into landed cost calculations.
