An HTS code is a classification number used to identify products imported into the United States.

HTS stands for Harmonized Tariff Schedule. The HTS code helps U.S. Customs and Border Protection determine how imported goods should be classified, what duty rate may apply, and whether additional tariffs or requirements may be involved.

For importers, the HTS code is one of the most important pieces of information in the customs clearance process.

Why HTS Codes Matter

HTS codes help determine how a product is treated when it enters the United States.

The correct HTS code may affect:

• Duty rates
• Additional tariffs
• Trade remedy duties
• Country of origin requirements
• Partner government agency requirements
• Import restrictions
• Free trade agreement eligibility
• Customs entry accuracy
• Landed cost calculations

If the HTS code is incorrect, the importer may pay too much duty, pay too little duty, experience clearance delays, or face compliance issues later.

How Is an HTS Code Used?

When goods are imported, the customs broker uses product information to help classify the merchandise under the Harmonized Tariff Schedule.

The HTS code is then used on the customs entry. Customs uses that information, along with the value, country of origin, and other shipment details, to determine how the goods should be processed.

This is why product descriptions matter. A vague description such as “parts” or “accessories” is usually not enough to determine the correct HTS code.

To classify a product properly, more detail may be needed, such as:

• What the product is
• What it is made of
• What it is used for
• How it works
• Whether it is finished or unfinished
• Whether it is part of another item
• Technical specifications, when applicable

The more complete the product information is, the easier it is to review classification.

HTS Code vs. HS Code

Importers may hear both HS code and HTS code.

An HS code refers to the international Harmonized System used by many countries to classify traded goods.

An HTS code refers to the U.S. version used for imports into the United States.

The first six digits are generally based on the international Harmonized System. The full U.S. HTS code includes additional digits used for U.S. tariff and statistical purposes.

For U.S. imports, importers should use the appropriate HTS code for the United States, not just a code provided by an overseas supplier.

Can a Supplier Provide the HTS Code?

A supplier may provide a tariff code, but importers should be careful.

Suppliers often provide codes based on their own country’s export system. That code may not be the correct U.S. HTS code.

The importer of record is responsible for using accurate information when goods are entered into the United States. If a supplier provides a code, it should be reviewed before it is used for U.S. Customs entry.

Common HTS Classification Mistakes

Common mistakes include:

• Using a supplier’s foreign tariff code without review
• Classifying based only on a product name
• Using vague descriptions
• Assuming similar products always use the same HTS code
• Ignoring material composition
• Ignoring product use
• Not reviewing whether additional tariffs apply
• Using an outdated code
• Failing to update classifications when products change

Small differences in material, function, or design can sometimes change the correct classification.

For example, a plastic storage container, a glass storage container, and a stainless steel storage container may not all classify the same way. Product details matter.

Why Accurate Classification Helps Importers

Accurate HTS classification can help importers:

• Estimate landed costs more accurately
• Avoid unexpected duty bills
• Reduce clearance delays
• Support compliance records
• Identify possible tariff exposure
• Determine if additional documents are needed
• Review whether special duty programs may apply
• Make better purchasing and pricing decisions

For companies importing regularly, classification should not be treated as a last-minute task. It should be part of the planning process before the goods are shipped.

What If You Are Unsure of the Correct HTS Code?

If an importer is unsure of the correct HTS code, they should not guess.

The best next step is to gather detailed product information and ask a customs broker or trade professional to review it.

Helpful information may include:

• Product description
• Material composition
• Intended use
• Photos
• Technical drawings
• Spec sheets
• Manufacturer information
• Catalogs or product links
• Country of origin
• Prior classifications, if available

In some situations, importers may also request a binding ruling from CBP for a formal classification decision.

Final Thoughts

An HTS code is more than a number. It affects duty rates, tariff exposure, customs clearance, compliance, and the total cost of importing goods into the United States.

Using the correct HTS code starts with having accurate product information. Importers should review classifications carefully and avoid relying only on vague descriptions or supplier-provided codes.

Earth Customs can help importers review product details, evaluate HTS classification, and coordinate customs clearance for U.S. imports.

Need help reviewing HTS codes for your products? Contact Earth Services to discuss your import shipment and classification needs.