Classifying a product under the correct HTS code is part science, part art. The U.S. Harmonized Tariff Schedule has 13,650 codes across 98 chapters — finding the right one requires a systematic approach. Here's how to do it.

Step 1: Describe Your Product Precisely

Start with a detailed written description of your product. Include:

💡 Tip: The more specific your description, the better. "Cotton T-shirt, men's, knitted" will get you to the right code much faster than just "clothing."

Step 2: Search LookupHTS

Enter your description in the LookupHTS search bar. The tool searches all 13,650 codes from the 2026 USITC schedule and surfaces the most relevant results. Look at the description, heading title, and duty rate for each result.

Step 3: Navigate the Chapter Structure

The HTS schedule is organized into 21 sections and 98 chapters. If you know roughly what category your product falls into, browse directly to that chapter. For example:

Step 4: Apply the General Rules of Interpretation

The USITC schedule includes six General Rules of Interpretation (GRIs) that govern how goods are classified. The most important: goods should be classified according to the terms of the headings, not by inference. When in doubt, the more specific description wins over a general one.

Step 5: Check the Duty Rate and Special Programs

Once you have a code, note three duty columns:

Common Mistakes to Avoid

When to Get a Binding Ruling

If you're unsure about a classification — especially for high-value goods or goods with high duty rates — you can request a binding ruling from U.S. Customs and Border Protection. CBP will tell you definitively which HTS code applies, and you can import with confidence. Apply at rulings.cbp.gov.