Harmonized Tariff Schedule (HTS)
The US Harmonized Tariff Schedule assigns a 10-digit code to every importable product — and that code determines your duty rate, quota eligibility, and access to FTA preferences. Here's how it works, and how to find your code fast.
99 Chapters
covering every importable product category
10 Digits
in a full US HTS code (6 HS + 4 US-specific)
Continuous
updates by the USITC throughout the year
How a 10-digit HTS code is structured
HTS Chapter Reference
All 99 HTS chapters — click your product category to look up the specific code.
| Chapters | Product Category | |
|---|---|---|
| 01–05 | Live animals & animal products | |
| 06–14 | Vegetable products | |
| 15 | Animal or vegetable fats & oils | |
| 16–24 | Prepared foodstuffs, beverages, tobacco | |
| 25–27 | Mineral products | |
| 28–38 | Chemical & allied industries | |
| 39–40 | Plastics & rubber | |
| 41–43 | Raw hides, leather, fur | |
| 44–46 | Wood & wood products | |
| 47–49 | Pulp, paper & paperboard | |
| 50–63 | Textiles & apparel | |
| 64–67 | Footwear, headgear, umbrellas | |
| 68–70 | Stone, plaster, glass, ceramics | |
| 71 | Precious metals & jewelry | |
| 72–83 | Base metals & articles thereof | |
| 84–85 | Machinery, electronics, computers | |
| 86–89 | Vehicles, aircraft, vessels | |
| 90–92 | Optical, medical, photographic instruments | |
| 93 | Arms & ammunition | |
| 94–96 | Furniture, toys, miscellaneous manufactured goods | |
| 97–99 | Works of art, special classification provisions |
Click any row to look up the specific HTS code with our AI classifier.
HTS vs HS Code — quick reference
| Aspect | HS Code | HTS Code (US) |
|---|---|---|
| Length | 6 digits | 10 digits |
| Used in | 190+ countries | USA only (CBP) |
| Managed by | WCO | USITC |
| Purpose | Universal classification | US duty rate + quota + FTA |
| Required on | Export invoices | CBP Form 7501 entries |
Harmonized Tariff Schedule FAQ
The Harmonized Tariff Schedule of the United States (HTS or HTSUS) is the official schedule of import duty rates published by the US International Trade Commission (USITC). It assigns a unique 10-digit code to every category of imported goods and specifies the applicable duty rate, quota status, and special trade program eligibility for each. It is the US extension of the international Harmonized System (HS), maintained by the World Customs Organization.
An HS code is the international 6-digit standard maintained by the WCO and used in 190+ countries. An HTS code is the US-specific 10-digit extension — the first 6 digits match the HS code, and the last 4 digits are US-specific suffixes that identify the exact duty rate, quota, and statistical category. Every HTS code starts with an HS code; not every HS code has a direct HTS equivalent.
The HTS is updated continuously by the USITC throughout the year to reflect new trade legislation, tariff rate changes, quota announcements, and WCO revisions. Major structural revisions happen every 5 years when the WCO updates the base HS nomenclature. Minor updates — including Section 301 rate changes and new exclusions — can happen any month.
The official HTS is published at hts.usitc.gov. The interface is technically complete but slow to navigate for anyone who doesn't already know their 4-digit heading. A faster approach: use an AI classifier (like Zentria Flow's free HS Code Lookup) to identify your 6-digit HS code first, then append the US 4-digit suffix for the full 10-digit HTS.
For US import entries (CBP Form 7501), yes — the full 10-digit HTS code is required. For commercial invoices destined for other countries, the 6-digit HS code is sufficient. For Shopify Duties & Import Taxes at checkout, Shopify accepts the 6-digit HS code at a minimum.
Find any HTS code in seconds
Describe your product in plain English. The AI returns the 6-digit HS code, suggests the US 10-digit HTS suffix, and shows the applicable duty rate — free, no login.