Commercial invoice to the UK – 7 elements required by HMRC [2026]

The Commercial Invoice is one of the most important documents when exporting goods to the United Kingdom. British customs authorities (HMRC) use it to calculate customs duty and VAT, as well as to verify the shipment's compliance with the customs declaration.

Errors in the commercial invoice may lead to goods being held at the border, additional customs inspections, and even financial penalties. This article explains the required elements of a commercial invoice according to HMRC requirements and how to avoid common mistakes.

Problem: Incorrect invoice = Border detention

Why is the commercial invoice so important?

The Commercial Invoice serves several purposes:

1. Basis for calculating duty and VAT – HMRC uses invoice data to calculate customs duties. 2. Compliance verification – customs authorities compare invoice data with customs declaration data. 3. Proof of commercial transaction – the invoice confirms that the transaction is genuine (not fictitious). 4. Basis for applying customs preferences – if the goods qualify for 0% duty under the TCA (EU-UK Trade and Cooperation Agreement), the invoice must include a statement of origin.

Practical issue: Incorrect commercial invoice may result in: - Goods detention for inspection (Route 2). - Refusal to apply customs preferences (0% customs duty → standard customs duty). - Financial penalties for incorrect data. - Delivery delays and additional costs.

7 mandatory elements of a commercial invoice for the UK

1. Sender's data (exporter)

The invoice must include full exporter details: - Company name (full name as per the register). - Registered office address (street, city, postal code, country). - EU VAT number (if the exporter is VAT registered). - EORI number PL (mandatory for export from the EU).

Example: ``` Exporter: ABC Meble Sp. z o.o. 10 Przemysłowa St 00-123 Warsaw, Poland VAT: PL1234567890 EORI: PL1234567890 ```

2. Recipient data (UK importer)

The invoice must include full importer details in the UK: - Company name (or first and last name if an individual). - Delivery address in the UK (street, city, postal code). - VAT number GB (if the importer is VAT registered in the UK). - EORI GB number (mandatory for import to the UK).

Example: ``` Importer: XYZ Furniture Ltd. 123 High Street London SW1A 1AA, United Kingdom VAT: GB987654321 EORI: GB987654321000 ``` Important: If the importer does not have a GB EORI number, customs clearance will not be possible. Ensure your UK client has a GB EORI before shipping.

3. Detailed description of the goods

The product description must be detailed and precise. Avoid general terms such as "furniture", "parts", "electronics".

Requirements: - Trade name of the goods (e.g. "Oak wooden table", "Swivel office chair"). - Material (wood, metal, plastic, fabric). - Purpose (for domestic, industrial, office use). - CN code (customs tariff) – 8-digit commodity classification code (e.g. 9403.60.10). Example: Item 1: Description: Oak wooden table, dimensions 180x90x75 cm, for domestic use CN Code: 9403.60.10 Quantity: 10 pcs. Unit price: 500 EUR Value: 5,000 EUR Error to avoid: ❌ "Furniture" – too general, does not allow customs classification. ✅ "Oak wooden table, dimensions 180x90x75 cm" – precise, enables classification.

4. Quantity and unit of measure

Invoice must include: - Quantity of goods (number of pieces, kilograms, litres, etc.). - Unit of measure (pcs, kg, m², l).

Example: ``` Quantity: 10 pcs Net weight: 150 kg Gross weight: 180 kg ``` Important: If goods are sold in collective packaging (e.g. cartons), provide both the number of packages and the number of units inside.

5. Value of goods and currency

Invoice must include: - Unit price (per piece, kilogram, etc.). - Total value (quantity × unit price). - Currency (EUR, GBP, USD etc.).

Example: ``` Unit price: 500 EUR Quantity: 10 pcs. Value: 5,000 EUR ``` Important: The invoice value must match the value in the customs declaration. If values differ, customs authorities may challenge the transaction.

6. Delivery terms (Incoterms)

The invoice must include delivery terms in accordance with Incoterms 2020 (e.g. FCA, DAP, DDP).

Why is it important? Delivery terms specify: - Who is responsible for transport (seller or buyer). - Who pays duty and VAT (seller or buyer). - Where the risk passes (in Poland, at the border, in the UK). Example: ``` Delivery terms: FCA Warsaw (Incoterms 2020) ``` Most common Incoterms in PL-UK trade: - FCA (Free Carrier) – The seller delivers the goods to the carrier in Poland. The buyer arranges transport and clearance in the UK. - DAP (Delivered at Place) – The seller delivers the goods to a place in the UK. The buyer is responsible for customs clearance and VAT. - DDP (Delivered Duty Paid) – The seller delivers the goods to a place in the UK and pays customs duty and VAT.

7. Statement of origin (if applicable)

If the goods qualify for 0% duty under the TCA agreement (EU-UK Trade and Cooperation Agreement), the invoice must include statement of origin.

Declaration template: ``` "The exporter of products covered by this document (customs authorisation no. ... [if applicable]) declares that, except where explicitly stated otherwise, these products have preferential origin ... [country of origin]." ``` Important: A statement of origin may be placed on the invoice only if the exporter holds knowledge of the origin of goods (e.g. the goods were produced in the EU or meet the TCA rules of origin).

Most common errors in commercial invoices

Error 1: Missing EORI number

❌ Invoice does not contain exporter or importer EORI number. ✅ Always provide PL EORI (exporter) and GB EORI (importer) numbers.

Error 2: General description of goods

❌ "Furniture", "Parts", "Electronics". ✅ "Oak wooden table, dimensions 180x90x75 cm, for domestic use".

Error 3: Value discrepancy

❌ Invoice value: 5,000 EUR. Customs declaration value: 4,500 EUR. ✅ Invoice value must match the value in the customs declaration.

Error 4: Missing delivery terms

❌ The invoice does not include Incoterms. ✅ Always specify delivery terms (e.g. FCA, DAP, DDP).

Error 5: Incorrect CN code

❌ CN code: 9999.99.99 (does not exist). ✅ Check CN code in the UKGT tariff (gov.uk/trade-tariff).

How can easyclearance.pl assist?

Commercial invoice verification

Before shipping goods to the UK, we can verify your commercial invoice for: - Completeness of data (EORI, goods description, value). - Compliance with HMRC requirements. - Correctness of CN code.

Preparation of export documentation

Our team can assist in preparing: - Commercial invoice compliant with HMRC requirements. - Statement of origin (if goods qualify for customs preferences). - Other documents required for export (packing list, certificates).

Coordination with the importer in the UK

If your UK client does not have a GB EORI number or needs support with customs clearance, we can: - Perform import clearance in the UK using our GB EORI number. - Coordinate the process with the importer. - Ensure all documents comply with HMRC requirements.

Distinction: easyclearance.pl is a customs agency based in the UK. We directly handle clearances in Great Britain. If your shipment requires customs clearance in Poland or another EU country, we coordinate the process through our network of licensed local partners.

Frequently Asked Questions (FAQ)

Must the commercial invoice be in English?

It is not mandatory, but recommended. If the invoice is in Polish, UK customs authorities may request a translation, which can delay clearance.

Can I use a VAT invoice as a commercial invoice?

Yes, if the VAT invoice contains all required elements (EORI, goods description, Incoterms, CN code). However, it is advisable to prepare a separate commercial invoice for customs purposes.

Does the invoice need to be signed?

It is not mandatory, but recommended. The company signature and stamp confirm the authenticity of the document.

Can I issue a pro forma invoice?

A pro forma invoice may be used for informational purposes (e.g. client quotation), but does not replace commercial invoice for customs clearance. A commercial invoice is required for clearance.

What to do if I made a mistake on the invoice?

If the goods have not yet been shipped, issue a corrected invoice. If the goods are already in transit, contact your customs agent in the UK to amend the customs declaration data.

Summary

The commercial invoice is a key document for export to the UK. Key principles:

1. 7 mandatory elements: Exporter data, importer data, goods description, quantity, value, Incoterms, statement of origin (if applicable). 2. Precise description of goods – avoid general terms. 3. Compliance with the customs declaration – invoice value must match the declaration value. 4. EORI number – mandatory for exporter and importer.

Need help with a commercial invoice?

If you export goods to the UK and need support preparing a commercial invoice, contact easyclearance.pl. We will assist in verifying documentation and ensure compliance with HMRC requirements.

easyclearance.pl is a customs agency based in the United Kingdom. We directly handle clearances in the UK. Customs clearances within the EU are carried out in cooperation with our network of licensed local partners. Contact us →

What the current official guidance means in practice

For operational work, the current procedural rules, declaration fields and relief conditions should be checked directly against the official guidance. For this topic, the core reference points are European Commission, GOV.UK / HMRC.

Official sources

• EU Commission (Customs procedures) — European Commission, 2026-03-04
• UK GOV (Importing into the UK) — GOV.UK / HMRC, 2026-03-04
• GOV.UK: Customs Declaration Service — GOV.UK / HMRC, 2026-03-04