HTS Classification Errors That Cost Importers Money

An HTS classification error is the most common reason importers overpay duty. The 10-digit HTS number on each entry line sets the duty rate and decides which extra duties, such as Section 301, apply. A product classified one heading off can carry a very different rate, and the error repeats on every shipment until someone catches it. Errors on entries that have not liquidated can be fixed with a Post-Summary Correction.

How classification works

Products are classified under the Harmonized Tariff Schedule of the United States using the General Rules of Interpretation. GRI 1 says classification starts from the terms of the headings and their notes. The later rules handle composite goods, sets, unfinished articles and ties between headings.

The errors we see most

• Parts vs. complete articles: Parts often have different rates and different Chapter 99 treatment than the finished good.
• Sets and kits: Classified by the component that gives the set its essential character, not the most expensive item.
• Material vs. function: Some headings classify by what a product is made of, others by what it does.
• Outdated numbers: The HTS changes during the year. A catalog that is not updated keeps using retired or split numbers.
• Chapter 99 stacking: The wrong base number can pull in Section 301 or other duties that should not apply.
• Copying the supplier's code: Foreign suppliers often provide codes that are right at 6 digits and wrong at 10.

How to find errors

• Pull your entry data and group lines by product and HTS number.
• Look for inconsistency: The same product entered under different numbers is a sign one of them is wrong.
• Check high-duty lines first, where an error costs the most.
• Research CBP rulings on similar products in the CROSS database.

How to fix them

• Unliquidated entries: A Post-Summary Correction.
• Liquidated entries: A protest within 180 days.
• Future entries: Correct the catalog and your broker's instructions, or request a binding ruling.
• Underpayments: Talk to counsel about a prior disclosure.

How Caspian finds classification errors

Caspian reads every entry line against the tariff schedule and your product data, flags lines that look misclassified, and routes each fix to the correction that is still open. See HTS classification services.

Works Cited:

• USITC: Harmonized Tariff Schedule of the United States
• CBP: Customs Rulings Online Search System (CROSS)