Sources and method
Every duty rate on this site is copied from the official customs tariff of the destination: the US Harmonized Tariff Schedule, the UK Trade Tariff, the EU Combined Nomenclature, the Canadian Customs Tariff and the Japanese tariff schedule. Tax and exemption rules come from the official pages of the customs and tax authorities.
For each product group we take the HS6 code and read every tariff line under it. A rate is turned into a number only when it is a plain percentage ("12%", "Free"); a specific or compound duty (for example per kilogram plus a percentage) is not converted and is flagged. The range is the lowest to the highest plain rate among the lines. Japan applies the lower of the General and the WTO rate, as Japan Customs states. 400 tariff lines are recorded, each with a verbatim excerpt from the official page and its URL.
How an estimate is calculated
- Duty = customs value × the range of the official general rate. The customs value is the goods value, plus international shipping and insurance only where the destination's official valuation rule says so (UK, EU and Japan add them; the US and Canada do not).
- Tax = the official standard rate × (customs value, plus duty where the official tax base says so). Where the rate or the base is not stated we show no tax amount instead of guessing.
- The estimate never changes because a low-value exemption might apply: exemptions are shown as information, with their conditions.
- Amounts in other currencies are converted with the European Central Bank euro reference rates and are indicative only.
Limits you should know
- The product codes are representative HS6 codes for common goods. They are not a binding classification: the exact tariff line depends on material, use and value. Confirm with a licensed customs broker.
- Rates, exemptions and valuation rules change. We re-read every source each month; the verification date is shown next to each figure.
- Estimates leave out additional duties and special tariffs, anti-dumping duties, quotas, preferential and origin-based rates, excise duties, state or provincial taxes and carrier or broker fees.
- The free quota (3 estimates a day) is counted in your browser. Clearing site data resets it; paid access is checked with our payment provider.
- This site is not affiliated with any customs authority and is not customs or legal advice.
6 of 30 tax and exemption facts are not stated on an official page we could read.
Official sources by destination
| Destination | Publisher | Page |
|---|---|---|
| United States | The White House (Executive Order 14324, 30 July 2025) | www.whitehouse.gov |
| United States | CBP / Federal Register (interim final rule, effective 24 June 2026) | www.federalregister.gov |
| United States | US Code, 19 U.S.C. 1401a (Legal Information Institute, Cornell, hosting the official US Code text) | www.law.cornell.edu |
| United Kingdom | HMRC / GOV.UK | www.gov.uk |
| United Kingdom | HMRC / GOV.UK | www.gov.uk |
| United Kingdom | HM Treasury / HMRC consultation, GOV.UK | www.gov.uk |
| United Kingdom | HMRC (GOV.UK) | www.gov.uk |
| United Kingdom | HMRC (GOV.UK) | www.gov.uk |
| European Union | European Commission, DG TAXUD | taxation-customs.ec.europa.eu |
| European Union | European Commission, DG TAXUD (news item 2026-06-08) | taxation-customs.ec.europa.eu |
| European Union | European Commission, DG TAXUD | taxation-customs.ec.europa.eu |
| European Union | European Parliament and Council, Regulation (EU) No 952/2013 (Union Customs Code), Official Journal text via Publications Office | publications.europa.eu |
| European Union | Council Directive 2006/112/EC (VAT Directive), Official Journal text via Publications Office | publications.europa.eu |
| Canada | CBSA | www.cbsa-asfc.gc.ca |
| Canada | CBSA (Memorandum D8-2-16) | www.cbsa-asfc.gc.ca |
| Canada | Department of Justice Canada, Customs Act s. 48 | laws-lois.justice.gc.ca |
| Canada | Department of Justice Canada, Excise Tax Act s. 215 | laws-lois.justice.gc.ca |
| Japan | Japan Customs (MOF) | www.customs.go.jp |
| Japan | Japan Customs (MOF) | www.customs.go.jp |
| Japan | Japan Customs (Ministry of Finance) | www.customs.go.jp |
| Japan | Consumption Tax Act (Act No. 108 of 1988), e-Gov law database (Digital Agency) | laws.e-gov.go.jp |
Currency conversion uses the European Central Bank euro reference rates (rates dated 2026-10-01).
Product codes
The 20 product groups use these representative HS6 codes: 6109.10 (t-shirts (cotton, knitted)); 6110.20 (hoodies and sweatshirts (cotton, knitted)); 6203.42 (men's trousers and jeans (cotton)); 6404.11 (sports footwear / sneakers (rubber or plastic soles, textile uppers)); 4202.21 (handbags with leather outer surface); 4202.92 (backpacks and bags with textile outer surface); 8518.30 (headphones and earphones (incl. wireless earbuds)); 8517.13 (smartphones); 8504.40 (chargers and power adapters (static converters)); 8544.42 (cables with connectors (voltage up to 1,000 v)); 8539.52 (led lamps); 8471.30 (laptops (portable computers up to 10 kg)); 9503.00 (toys (other, incl. dolls and figures not listed elsewhere)); 9504.90 (board games and puzzles (other games)); 6912.00 (ceramic tableware (mugs, cups; not porcelain)); 9617.00 (vacuum flasks and insulated bottles); 9004.10 (sunglasses); 7117.19 (imitation jewellery (base metal)); 3304.99 (beauty and skincare preparations (other)); 9403.60 (wooden furniture (other)). LED lamps are 8539.52 since the 2022 revision of the Harmonized System.
Updates
We re-read every source monthly, and again when a tariff year changes or an official page announces a rule change. A figure whose excerpt can no longer be found on the official page is corrected or removed. The verification date changes only when we actually re-read the page.