In one sentence
UK import duty is a tax charged on goods imported into the UK from outside the UK customs territory, calculated as a percentage of the customs value of the goods. The percentage rate is determined by the goods' commodity code — a 10-digit numerical classification under the UK Trade Tariff.
Get the code right and you've solved most of the duty problem. Get it wrong and the consequences range from "paid too much for no reason" to "HMRC backdated assessment plus penalties" depending on the size and direction of the error.
Anatomy of a UK commodity code
UK commodity codes are 10 digits. They look like this:
The first 6 digits (HS code) are internationally standardised under the Harmonised System maintained by the World Customs Organisation. Almost every country in the world uses the same first 6 digits for the same goods. Digits 7–8 are the EU's Combined Nomenclature, which the UK retained at Brexit. Digits 9–10 are UK-specific and rarely used (mostly default to 00).
Where to look up your code
The single authoritative source is the UK government's online tariff tool:
Other tools and sources:
- HMRC's Tariff Classification Service. Email classification.enquiries@hmrc.gov.uk with your goods description, intended use, photos and material composition. Free, but takes 5–10 working days for a non-binding response
- Advance Tariff Rulings (ATR). A legally binding classification from HMRC, valid for 3 years. Free to apply for via the gov.uk service. Recommended when classification is genuinely ambiguous and the duty exposure is significant
- Your customs broker / freight forwarder. Most have classification expertise but the legal responsibility remains yours as the importer
- EU TARIC database. Same first 8 digits as UK; useful for cross-reference
How to find the right code — step by step
Standard UK duty rates by category
Indicative UK Global Tariff (UKGT) duty rates for common UK SME imports (always check trade-tariff.service.gov.uk for your specific code):
| Goods category | Typical UKGT duty rate |
|---|---|
| Garments & textiles (most) | 8% – 12% |
| Footwear (most) | 8% – 17% |
| Consumer electronics (TVs, monitors) | 0% – 14% |
| Smartphones & laptops | 0% |
| Furniture (most) | 0% – 5.6% |
| Toys | 0% – 4.7% |
| Industrial machinery (most) | 0% – 2.7% |
| Tyres | 4% – 4.5% |
| Cosmetics | 0% |
| Bicycles | 14% (with anti-dumping duty up to 48% from China) |
| Wine | £0 customs duty (excise duty applies separately) |
| Coffee, raw | 0% |
How import duty is actually calculated
Step by step — using a worked example:
- Customs value. The transaction value (price paid for the goods) — for UK imports, this typically also includes freight and insurance to the UK port (CIF value), depending on Incoterms
- Duty. Customs value × duty rate from your commodity code
- VAT. (Customs value + duty + UK port handling charges) × 20% (or other applicable rate)
Worked example
You import a consignment of small leather handbags from China:
- Goods value (FOB Shanghai): £8,000
- Sea freight + insurance to Felixstowe: £900
- Customs value: £8,900
- Commodity code 4202.21.00.00 — duty rate: 3%
- Duty: £8,900 × 3% = £267
- UK terminal handling included in VAT base, say £150
- VAT base: £8,900 + £267 + £150 = £9,317
- Import VAT: £9,317 × 20% = £1,863.40
- Total duty + VAT payable to HMRC: £2,130.40
Quick UK duty & VAT estimator
Rough estimate using the UKGT standard rate. Always verify on trade-tariff.service.gov.uk.
Preferential rates — trade agreements
If your goods originate in a country with a UK trade agreement (the EU, Japan, Switzerland, Norway, Vietnam, Korea, and many others), you may be able to claim preferential duty — usually a 0% rate. To qualify:
- The goods must actually originate in the partner country under the rules of origin in the agreement (not just be shipped from there)
- The exporter must provide a valid statement on origin or, in some agreements, an EUR.1 or EUR-MED certificate
- You must claim preference at the time of the import declaration — it cannot easily be claimed retrospectively
Country of origin ≠ country of dispatch. Goods made in China but shipped from the Netherlands are still Chinese in origin and pay full UK duty (no UK–China FTA). Conversely, goods made in Germany and shipped via Rotterdam qualify for 0% UK duty under the UK-EU TCA, with the right documentation.
Common classification mistakes to avoid
- Copy-pasting the supplier's HS code. Asian suppliers' codes are often only 6-digit and may be wrong for UK rules. Verify against UK Trade Tariff yourself
- "Parts" vs "complete article". A part of a machine is classified differently from the complete machine. Mis-classification can move duty by 10%+
- Using an old code. Tariff codes change. The HS is updated every 5 years (last big update: 2022). Check codes are current
- Ignoring chapter notes. "Articles of plastic" sounds like Chapter 39 — but if it's a furniture item it's Chapter 94. Read the notes
- Combining different goods under one code. Mixed shipments need each line classified separately on the customs entry
- Misunderstanding "essential character". A set of items takes the code of the item that gives it essential character — not the cheapest, not the heaviest
Related terms
- UK Customs Terms
- Postponed VAT Accounting (PVA)
- Commodity Code (glossary entry)
- Certificate of Origin
- Freight forwarder — typically lodges your customs entry