Import Documentation Checklist UK: Every Document You Need Before Shipping

Why a UK Import Documents Checklist Is Essential

Importing goods into the UK requires a specific set of documents. Missing even one can cause your shipment to be held at the border, incur storage charges, or in some cases result in goods being returned to the sender. Having a reliable UK import documents checklist — and understanding who is responsible for preparing each document — is essential for any importer. Similar documentation requirements apply in the US (CBP), EU, Australia, and other importing countries — the core documents are largely the same, though specific forms and registration numbers differ.

Since Brexit, UK import documentation requirements have changed for goods arriving from the EU. All imports into the UK, regardless of origin, now require customs declarations and associated paperwork.

The Complete UK Import Documents Checklist

1. Commercial Invoice

What it is: The primary document for customs clearance. It details the goods being shipped, their value, quantity, and the terms of sale.

Who prepares it: Your supplier (the exporter).

Key requirements:

• Seller and buyer full details
• Detailed product descriptions
• HS commodity codes
• Unit prices, total values, and currency
• Incoterm and named place
• Country of origin
• Unique invoice number and date

The commercial invoice is the foundation of your customs entry. An incomplete or inaccurate invoice is the most common cause of clearance delays. See our detailed guide on what to include on a commercial invoice for customs clearance for field-by-field instructions. If you need help creating compliant invoices, the Invoice Generator can help.

2. Packing List

What it is: A detailed breakdown of the shipment contents, showing what is in each carton or package.

Who prepares it: Your supplier.

Key requirements:

• Carton numbers and total number of packages
• Contents of each carton (product, quantity, weight)
• Dimensions of each carton (L × W × H in cm)
• Gross weight and net weight per carton
• Total gross weight, net weight, and volume (CBM)

The packing list must match the commercial invoice exactly. Customs uses it to verify quantities and to plan inspections if needed.

3. Bill of Lading (Ocean) or Airway Bill (Air)

What it is: The transport document issued by the carrier. A bill of lading (B/L) is used for ocean freight; an airway bill (AWB) is used for air freight.

Who prepares it: The shipping line or airline (via your freight forwarder).

Key requirements:

• Shipper (supplier) and consignee (you) details
• Vessel/flight name and voyage/flight number
• Port of loading and port of discharge
• Description of goods and number of packages
• Container number(s) for ocean freight
• Freight prepaid or collect

Important: An original bill of lading is a document of title. You (or your agent) must present it to collect your goods from the port. Losing the original B/L can cause significant delays. Telex release or sea waybills are increasingly used as alternatives to avoid this risk.

An airway bill is not a document of title and does not need to be presented for collection, but it must still accompany the shipment.

4. Certificate of Origin

What it is: A document certifying the country where the goods were manufactured or underwent substantial transformation.

Who prepares it: Your supplier, issued by a chamber of commerce or relevant authority in the exporting country.

Key requirements:

• Matches the country of origin stated on the commercial invoice
• Issued by a recognised authority
• Specific format may be required depending on trade agreements (e.g., EUR.1 for certain countries)

Why it matters: The country of origin determines the duty rate applied to your goods. The UK has trade agreements with various countries offering preferential (lower) duty rates, but you can only claim these with a valid certificate of origin.

5. Insurance Certificate

What it is: Proof that the goods are insured during transit.

Who prepares it: Your insurance provider or freight forwarder.

Key requirements:

• Covers the full CIF value of the goods (typically 110% of invoice value)
• Specifies the risks covered (all-risks is standard)
• Names the insured party
• Matches the shipment details (invoice number, vessel, route)

While cargo insurance is not legally mandatory for most imports, it is strongly recommended. Without it, if goods are lost or damaged in transit, you bear the full financial loss. If your Incoterm is CIF, the supplier arranges insurance; for FOB and EXW, you need to arrange it yourself.

6. Customs Entry (C88 / Single Administrative Document)

What it is: The formal customs declaration submitted to clear goods into the country. In the UK, it is known as a C88 or SAD (Single Administrative Document). In the US, this is the CBP Entry Summary (Form 7501). In the EU, a Single Administrative Document (SAD) is used.

Who prepares it: Your customs broker or freight forwarder (on your behalf).

Key requirements:

• Correct commodity code for each product
• Accurate customs value (CIF value in the UK/EU; FOB value in the US)
• Your customs registration number (EORI in the UK/EU, importer number in the US)
• Deferment account details (if using duty deferment)
• Preference claim details (if claiming preferential duty rates)
• Correct customs procedure code (CPC)

Most importers do not complete the customs entry themselves — they authorise a customs broker to do it using the information from the commercial invoice, packing list, and other documents. However, you are legally responsible for the accuracy of the declaration, even if a broker submits it on your behalf.

You can use the Duty & Tax tool to estimate the duties and taxes that will be assessed on your customs entry.

7. Import Licence (If Applicable)

What it is: A government-issued authorisation to import specific controlled goods.

Who prepares it: You (the importer), applied for through the relevant government department.

Products that may require a licence:

• Firearms and ammunition
• Certain agricultural products and foodstuffs
• Controlled drugs and precursors
• Ozone-depleting substances
• Certain textiles (from specific countries)
• Military and dual-use goods
• Endangered species products (CITES)
• Iron and steel (from certain origins)

Check the UK Trade Tariff (or the relevant tariff database for your country) for licence requirements specific to your commodity code. Import licences must be obtained before your goods arrive. Similar licensing requirements exist in the US (managed by various agencies such as FDA, CPSC, FCC), the EU, and other countries.

8. Phytosanitary Certificate (If Applicable)

What it is: A certificate confirming that plant-based products are free from pests and diseases.

Who prepares it: The exporting country's plant protection authority.

Products that require it:

• Live plants and seeds
• Fresh fruit and vegetables
• Cut flowers
• Wooden packaging materials (under ISPM 15)
• Certain herbs and spices

The UK's Animal and Plant Health Agency (APHA) enforces phytosanitary requirements, while USDA APHIS handles them in the US. Goods arriving without a valid phytosanitary certificate will be refused entry or destroyed.

Note: Wooden pallets and crates must comply with ISPM 15 (heat treatment or fumigation) and bear the appropriate stamp. This applies to the packaging, not just the product itself.

9. CE / UKCA Marking Documentation

What it is: Documentation proving your product meets the safety, health, and environmental requirements for sale in the UK market.

Who prepares it: The manufacturer (with testing by an accredited laboratory if required). You as the importer are responsible for ensuring compliance.

Products that require UKCA marking:

• Electrical and electronic equipment
• Toys
• Personal protective equipment (PPE)
• Machinery
• Medical devices
• Construction products
• Pressure equipment
• Radio and telecommunications equipment

Key documents:

• Declaration of Conformity (DoC) — a formal statement that the product meets the relevant regulations
• Test reports from accredited laboratories
• Technical file / documentation showing how compliance was achieved

Since 1 January 2025, the UKCA mark is required for goods placed on the GB market (England, Scotland, and Wales). CE marking is still accepted for goods entering Northern Ireland under the Windsor Framework. In the US, equivalent requirements include UL listing, FCC certification, and CPSC compliance depending on the product category.

10. Conformity Certificates and Test Reports

What it is: Independent test reports and certificates proving your product meets specific standards.

Who prepares it: Accredited testing laboratories (e.g., SGS, Bureau Veritas, Intertek, TUV).

Common certificates:

• RoHS — restriction of hazardous substances in electrical and electronic equipment
• REACH — registration, evaluation, authorisation of chemicals
• EN 71 — toy safety standard
• Food contact materials — testing for products that touch food (utensils, containers, packaging)
• EMC testing — electromagnetic compatibility for electronic products
• LVD testing — low voltage directive for electrical products

These certificates may not be required at the border for customs clearance, but they are a legal requirement for placing products on the UK market. Trading Standards can request them at any time, and selling non-compliant products carries serious legal consequences.

Who Prepares What: A Quick Reference

UK Import Document Retention Requirements

HMRC requires you to retain all import documentation for 6 years from the date of import (in the US, CBP requires 5 years; EU customs also require 5 years). This includes:

• Commercial invoices
• Packing lists
• Bills of lading / airway bills
• Customs entries (C88)
• Certificates of origin
• Duty receipts
• Correspondence with customs authorities
• Any amendments or corrections to customs entries

Best practice: Keep both digital and physical copies. Scan all paper documents and store them in an organised digital filing system, tagged by shipment reference, date, and supplier. Cloud storage with backup is recommended.

Customs authorities can audit your imports at any time within the retention window. Being unable to produce documents when requested can result in penalties and reassessment of duty.

Digital vs Paper Originals

The shift towards digital documentation has accelerated in international trade, but some documents still require paper originals:

Usually requires paper original:

• Bill of lading (unless telex release or sea waybill is used)
• Certificate of origin (some countries still require an original stamp)
• Phytosanitary certificates (original with official stamp)

Digital copies usually accepted:

• Commercial invoice
• Packing list
• Insurance certificate
• Test reports and conformity certificates
• UKCA Declaration of Conformity

Digital customs systems: The UK uses CDS (Customs Declaration Service), the US uses ACE (Automated Commercial Environment), and the EU uses various national systems. All are fully digital — customs entries are submitted electronically and supporting documents can be uploaded digitally. However, you should retain original paper documents where applicable.

Pre-Shipment Documentation Checklist

Before your supplier ships the goods, confirm you have received or arranged:

• Draft commercial invoice reviewed and approved
• Packing list matches the invoice
• HS codes verified for accuracy
• Certificate of origin requested (if needed for preferential duty)
• Insurance arranged (if you are responsible under the Incoterm)
• Import licence obtained (if required for your product)
• Phytosanitary certificate requested (if applicable)
• UKCA compliance documentation in hand
• Customs broker briefed with all shipment details
• Customs registration number active and valid (EORI for UK/EU, importer number for US)

Post-Arrival Documentation

After your goods arrive and clear customs:

• Customs entry (C88) received from broker — review for accuracy
• Duty and VAT receipt retained for accounting
• C79 certificate received (monthly from HMRC, used to reclaim import VAT)
• All documents filed and backed up digitally
• Any discrepancies noted and reported to your broker

The Bottom Line

This UK import documents checklist may feel overwhelming when you are starting out, but it quickly becomes routine. While this guide focuses on the UK, the same core documents are required when importing into the US, EU, Australia, and most other countries — only the specific forms and registration numbers change. The key is to work through the checklist systematically, communicate clearly with your supplier and freight forwarder, and review everything before shipment. Catching a mistake on a draft invoice costs nothing. Catching it at the border costs time and money.

Use the Invoice Generator to create compliant commercial invoices, and the Duty & Tax tool to estimate your customs charges before your goods arrive. If you are new to the process, our first-time importer's customs clearance guide walks you through each step.