Customs Tariff Classification

HTS Classification Overview

The Harmonized Tariff Schedule of the United States (HTSUS) is a structured nomenclature system that assigns 10-digit codes to every category of imported goods. Public records from the U.S. International Trade Commission (USITC) indicate that the schedule contains approximately 17,000 distinct classification headings.

Each HTS code determines the applicable duty rate, trade agreement eligibility, and regulatory requirements for the classified goods. Correct classification is fundamental to customs compliance. CBP public guidance states that importers of record bear legal responsibility for the accuracy of their classifications.

CBP Refund Portal Context

On April 23, 2026, CBP expanded public-facing resources related to tariff duty refunds and drawback programs. Public records indicate that importers who overpaid duties due to tariff changes in 2025-2026 may be eligible for refunds through established CBP drawback procedures.

The drawback process is administered under 19 USC 1313 and requires filing with CBP within the statutory time limits. This is a complex regulatory area. Consult a licensed customs broker for specific drawback eligibility.

How AI Is Changing Tariff Classification

Public industry reporting indicates a growing adoption of AI-assisted tariff classification tools. These systems use machine learning models trained on historical classification rulings, CBP binding rulings, and the HTSUS nomenclature to suggest candidate HTS codes for product descriptions.

AI classification tools do not replace the legal responsibility of the importer of record. They serve as a screening and efficiency layer. Public records from CBP indicate that binding rulings remain the authoritative mechanism for classification disputes.

Check Your Tariff Exposure

Review whether your products may be affected by recent tariff changes and explore potential refund eligibility signals through a tariff assessment.