Guides

Plain answers to the questions importers actually ask, or run a product in the calculator.

• How to calculate import duty from China to the USThe full duty stack on the China to US lane: HTS code, base rate, Section 301, MPF and HMF, with a worked example.
• Section 301 China tariffs: the 2026 list and ratesWhat Section 301 covers, the original list rates (7.5% and 25%), the 2024 review increases (25% to 100%), and how to check your product.
• How to find your HTS codeWhat a 10-digit HTS code is, why it sets your duty rate, how to find the right one, and the mistakes that lead to the wrong rate.
• Section 232 steel and aluminum tariffs: do they apply to you?What Section 232 covers, the 50% rate, primary metal vs derivative articles, and how it stacks with the base rate and Section 301.
• China import tariffs 2026: the full stackEvery charge on a China to US import in 2026: base MFN, Section 301, Section 232, MPF and HMF, how they stack, and a worked example.