HTS Code Resources

Everything you need to know about Harmonized Tariff Schedule codes — what they are, how they work, and why they matter for U.S. imports.

The HS code and HTS code are closely related but not the same. Learn how the international 6-digit system relates to the U.S. 10-digit classification.

A step-by-step guide to classifying your product under the correct HTS code — including tips, common mistakes, and when to consult a customs broker.

The U.S. has 14 free trade agreements. Learn which FTA programs apply to your HTS code and how to claim reduced or zero duty rates.

Learn how to calculate the customs duty you'll owe on imported goods — including ad valorem rates, specific duties, and compound rates explained simply.

What is the USITC, how often is the HTS updated, and where does the official data come from? Everything you need to know about the source of HTS codes.