Sources
Every number comes from officially published data, and each page states the version and the date it was checked. Every build checks the data, and nothing is published if a check fails.
Data by tool
| Tool | Data | Version | Checks |
|---|---|---|---|
| US import duty calculator for apparel | US International Trade Commission Harmonized Tariff Schedule, chapters 61, 62, 63, 65 and 99 and heading 4202; CBP MPF and HMF rates | HTS 2026 Revision 21; fees from 2026-10-01 | Every code exists in the official schedule; each code is on at most one active Section 301 China list and not in the four-year-review increases; each origin has exactly one additional-duty heading; no code appears in any exemption list |
For the formula, the additional duty for each country and what is not included, see How the duty calculator works.
Original sources
All results are estimates, not rulings by customs or any platform. Confirm with a customs broker or the relevant authority before you import or quote.