An HTS code is the 10-digit number that classifies your product in the US Harmonized Tariff Schedule. It sets your duty rate, so getting it right matters more than any other step.
What the digits mean
The code is read in pairs. The first two digits are the chapter (broad category), the next two the heading, and the rest narrow down to the exact product and a statistical suffix. The first six digits are international; the last four are US-specific.
How to find it
- Start from what the product is (material and function), not what it is called. "Tumbler" is a brand word; "vacuum flask of stainless steel" points to a code.
- Use the chapter and section notes, which include and exclude specific items.
- Apply the General Rules of Interpretation when a product could fit two headings (the more specific description usually wins).
- Check CBP's CROSS database for rulings on similar products.
Common mistakes
Classifying by product name, ignoring the material, or picking a heading because the rate is lower. CBP determines the final classification at entry, and the wrong code means the wrong duty.
The DutyWise classifier takes a plain description and returns a 10-digit code from the live schedule, or browse the full HTS directory by chapter.