Duty-Free vs Dutiable HTS Tariff Lines
Of 35,571 HTS items in the 2026 Basic Edition, 5,979 tariff lines (16.8%) are duty-free and 6,863 are dutiable with positive rates.
Research
Most editorial research is between briefs while we rebuild from updated USITC HTS and FAOSTAT releases. In the meantime, every HTS item, country, and rankings page on PlainTariff is sourced live from the database.
Download the HTS chapter statistics (CSV) , open extract wired into this page's Dataset JSON-LD.
The Ten Highest-MFN-Rate Chapters in the U.S. Tariff Schedule
We rank the top ten HTS chapters by average General-rate ad valorem percentage (dutiable lines only) and explain what drives each.
Section 301 China Tariffs on Top of MFN Rates
USTR's four Section 301 tariff actions on Chinese-origin goods add 7.5%-25% on top of the base MFN rate. Sourced to USTR, not to PlainTariff's own database.
Browse HTS chapters & items
Search the 96 HTS chapters covering every US tariff line, drawn live from the USITC HTS Basic Edition.