How to Read an HTS Code: A Beginner's Guide

February 26, 2026 · 5 min read

If you've ever tried to look up an import duty rate, you've encountered HTS codes — those long strings of numbers like 8471.30.0100 that look like they were designed to confuse people. Good news: they follow a logical structure, and once you understand it, you can decode any HTS code in seconds.

What Is an HTS Code?

HTS stands for Harmonized Tariff Schedule. It's the system the US (and most countries) use to classify every product that crosses the border. Each product gets a code, and that code determines the duty rate you pay.

The system is maintained by the US International Trade Commission (USITC) and is based on the international Harmonized System (HS) developed by the World Customs Organization.

Breaking Down the Digits

Let's decode a real HTS code: 8471.30.0100 (laptop computers)

8471.30.0100
Chapter (84 = Machinery)
Heading (71 = Computers)
Subheading (30 = Portable)
US-specific (0100)
DigitsLevelMeaningWho Defines It
84ChapterBroad category (Machinery & mechanical appliances)International (WCO)
8471HeadingNarrower group (Automatic data processing machines)International (WCO)
8471.30SubheadingSpecific type (Portable, ≤10 kg)International (WCO)
8471.30.0100US tariff lineUS-specific breakdownUSITC (US only)

The Key Rule: More Digits = More Specific

Think of it like an address:

The first 6 digits are internationally standardized — a laptop is classified as 8471.30 whether you're importing it into the US, EU, Japan, or Brazil. The digits after that are country-specific.

The 99 Chapters

The HTS has 99 chapters organized roughly from raw materials to finished goods:

ChaptersCategoryExamples
1-5AnimalsLive animals, meat, fish, dairy
6-14PlantsVegetables, fruits, coffee, grains
15-24Food productsOils, sugar, beverages, tobacco
25-27MineralsSalt, stone, cement, petroleum
28-38ChemicalsOrganic/inorganic chemicals, pharma
39-40Plastics & rubberPlastic articles, tires
41-43Leather & furHides, leather goods, furs
44-49Wood & paperLumber, paper, books
50-63TextilesFabrics, clothing, linens
64-67Footwear & headwearShoes, hats, umbrellas
68-71Stone & glassCeramics, glass, jewelry
72-83MetalsSteel, aluminum, tools, hardware
84-85Machinery & electronicsComputers, phones, appliances
86-89VehiclesCars, ships, aircraft
90-97Instruments & miscMedical devices, furniture, art
98-99Special provisionsDuty-free personal items, repairs

Common Mistakes

🔍 Try it yourself: Search any product on Tariff Check to see its HTS code, duty rate, and trade agreement rates — all in one place.
Disclaimer: This guide is for educational purposes. For binding tariff classification rulings, contact US Customs and Border Protection or a licensed customs broker.