For years, businesses importing lower-value goods into the United States operated with a reliable buffer: the de minimis exemption, which allowed shipments valued under $800 to enter duty-free without formal customs entry. That buffer is gone. There is no more de minimis exemption as of 2025, and the change has forced businesses that previously relied on it to confront a classification and duty calculation process they never needed to build properly before. For importers of any size, that process starts with the Harmonized Tariff Schedule — and getting it right has never mattered more.
What the Harmonized Tariff Schedule Actually Is
The Harmonized Tariff Schedule of the United States, commonly referred to as the HTS, is the system used to classify every physical product that crosses the U.S. border. It assigns a numeric code to each product category, and that code determines the applicable duty rate, any trade remedy tariffs that apply, and whether the product is subject to additional regulatory requirements upon entry. The schedule is based on the international Harmonized System maintained by the World Customs Organization, which means the first six digits of an HTS code are standardised across participating countries — but the U.S. adds additional digits that reflect domestic tariff rates and statistical tracking requirements.
Every imported product gets a code. A cotton t-shirt, a lithium-ion battery, a piece of industrial machinery, a cosmetic product, and a food ingredient each fall under a different HTS heading, and within each heading there are subheadings that narrow the classification further based on material composition, end use, manufacturing process, or other distinguishing characteristics. The difference between two adjacent subheadings can be the difference between a 0% duty rate and a 25% one — which is why classification accuracy is a financial issue, not just an administrative one.
How HTS Classification Works in Practice
Classifying a product correctly requires working through the HTS schedule systematically, starting with the General Rules of Interpretation that govern how the schedule is applied. The process involves identifying the relevant chapter based on the product’s material or function, narrowing to the correct heading within that chapter, and then applying the subheading structure to reach the most specific applicable code. For straightforward products with a single material and a clear function, this process is relatively direct. For complex products — those made of multiple materials, those that serve multiple functions, or those that are imported in unassembled form — the classification analysis can be genuinely difficult and the correct answer is not always obvious even to experienced customs professionals.
Common sources of classification error include relying on a supplier’s declared HTS code without independent verification, applying a code that was correct under a previous version of the schedule but has since been updated, and using a heading-level code where a more specific subheading exists. U.S. Customs and Border Protection can reclassify goods at entry or during a post-entry audit, and the result of reclassification is a duty bill that reflects the correct rate applied retroactively to affected shipments.
Why the End of De Minimis Makes Classification More Urgent
The de minimis threshold functioned as a practical exemption from formal entry requirements for a large volume of low-value shipments. Businesses — particularly e-commerce sellers sourcing from overseas suppliers and shipping directly to U.S. customers — structured their logistics around that exemption in ways that allowed them to avoid building a proper HTS classification infrastructure. With the exemption eliminated, those same shipments now require formal entry, which means accurate HTS codes, duty payment, and compliance with any applicable trade remedy orders for every shipment regardless of value. The businesses most exposed by this change are those that:
- Relied on direct-to-consumer shipping models that routed around formal customs entry
- Sourced products from countries subject to Section 301 tariffs without accounting for those additional duties in their cost models
- Have not audited their product classifications recently and may be carrying codes that are outdated or imprecise
- Lack internal expertise to manage classification at scale and have not yet engaged a licensed customs broker or trade compliance resource
Building a Classification Process That Holds Up
The standard that CBP applies when evaluating classification decisions is reasonable care — importers are expected to make a genuine effort to classify goods correctly, document that effort, and correct errors when they are discovered. Meeting that standard requires more than copying a supplier’s paperwork. It means maintaining written classification rationales for each product, reviewing classifications when products change or when the tariff schedule is updated, and seeking binding rulings from CBP for high-volume or high-value products where classification ambiguity creates meaningful financial exposure. Binding rulings are publicly available and provide a defensible basis for a classification position that CBP cannot later challenge for the covered product.
For businesses building this infrastructure for the first time in response to the de minimis elimination, the immediate priority is ensuring that every product currently being imported has a verified, current HTS code with a documented basis — not a supplier-provided code that has never been independently reviewed.
