How to Find the Right HTS Code for Your Products
Misclassifying a product under the wrong HTS code can result in underpaid duties, CBP penalties, and shipment delays.
Every product imported into the United States must be classified under a 10-digit Harmonized Tariff Schedule (HTS) code. The first 6 digits are internationally harmonized under the World Customs Organization's HS system; the last 4 digits are U.S.-specific statistical suffixes.
Why Getting It Right Matters
CBP audits routinely catch misclassified entries. Consequences include:
Step-by-Step Classification Method
1. Identify the Essential Character
What is the primary function of the product? A product that combines a thermometer and a blood pressure monitor is classified as whichever function gives it its essential character — in this case, likely the blood pressure monitor.
2. Work Through the GRIs
The General Rules of Interpretation (GRIs) govern classification. GRI 1 says: classify by the terms of the heading (the first 4 digits). Work top-down.
3. Use the USITC HTS Search
The official tool at hts.usitc.gov allows keyword search and chapter browsing. DutyFlow's HTS Browser includes the same 26,000+ codes with search, but adds real-time duty rates and Section 301/IEEPA flags.
4. Check the Chapter Notes and Section Notes
Chapter and section notes are legally binding. They define what is and is not included. "Chapter 90 notes" for optical instruments, for example, exclude items principally used as toys.
5. Request a Binding Ruling
For high-value or recurring imports, file a CBP Form 6304 to get a legally binding ruling. Free. Takes 30 days. The ruling binds CBP and protects you from reclassification.
Common Misclassification Traps
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Use DutyFlow's HTS Browser to cross-reference your product description against official chapter/section notes before filing.
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