How to Find HTS Code Numbers: A Step-by-Step Guide

How to find HTS code numbers is less about searching and more about reading. The Harmonized Tariff Schedule of the United States (HTS) is a legal text, and the right 10-digit code is the one its headings, notes and rules point to, not the one with the most matching words. This guide gives you a repeatable method, the same order of reasoning CBP uses in its rulings, with a worked example you can check yourself.

It is written for importers, customs brokers and e-commerce sellers classifying goods for US entry. All codes and rates below were checked against HTS 2026 Revision 20, the current revision as of October 2026.

Key takeaways

• Start with a complete description: material and percentages, construction, function, user, condition and how the goods are sold.
• Classification follows a fixed order: heading terms and legal notes first (GRI 1), then the remaining General Rules of Interpretation.
• Compare only codes at the same level: headings with headings, then subheadings within the chosen heading (GRI 6).
• Check CBP rulings in CROSS for similar goods, and watch for rulings that were later revoked.
• Finish with additional duties in Chapter 99, and record the code, the HTS revision and your reasons.

Step 1: Describe the product in full

Most wrong codes start with a thin description. "Water bottle" or "shirt" is not enough to classify anything. Before you open the schedule, write down:

• Material, with percentages by weight for blends (for textiles, the fibre that predominates by weight usually decides).
• Construction: knitted or woven, moulded or machined, assembled or unassembled.
• Function and use: what the item does and who uses it (men, women, children, industry).
• Condition: finished, unfinished, a part, a set.
• Size, capacity or value if the schedule splits lines on them.

The HTS itself shows why this matters. Chapter 61 note 5 says heading 6109 does not cover garments with a drawstring, ribbed waistband or other means of tightening at the bottom. Two shirts that look alike can end up in different headings because of a hem.

Step 2: Find the candidate chapter and heading

Search the official schedule at hts.usitc.gov with plain product words, and use the results to find candidate chapters, not final answers. USITC's FAQ suggests a second route when the schedule's wording is unfamiliar: search CBP's CROSS rulings database for everyday terms, such as "phone charger", find the code CBP used (8504.40.85 in USITC's example), and then go back to the HTS to read it in context.

Remember that section and chapter titles are for reference only. GRI 1 says classification is determined by the terms of the headings and any relative section or chapter notes.

Step 3: Read the heading terms and the legal notes

Open the PDF of the chapter you are looking at and read its notes before the headings. Notes do three jobs:

1. Exclude goods. Chapter 61 does not cover goods of heading 6212, for example.
2. Define terms. Chapter 61 defines a "suit" and an "ensemble" in detail.
3. Set tie-breakers. Chapter 61 note 9 classes garments that cannot be identified as men's or women's with women's garments.

Section notes apply across several chapters. Section XI note 2, for instance, classifies textile mixtures as if they consisted wholly of the fibre that predominates by weight.

Step 4: Apply the General Rules of Interpretation in order

If the heading terms and notes point to one heading, GRI 1 settles it and you move on. When goods seem to fit two headings, the GRIs decide, and they must be applied in order:

• GRI 2 brings incomplete, unassembled and mixed goods into the heading of the complete article or material.
• GRI 3 chooses between headings: most specific description first, then essential character, then the heading that comes last in numerical order.
• GRI 4 covers goods that no rule places, using the most akin goods.
• GRI 5 handles cases and packing.
• GRI 6 applies the same logic at the subheading level, comparing only subheadings at the same level.

Our General Rules of Interpretation guide walks through each rule with real examples.

Step 5: Work down to the 10-digit line

Once the heading is fixed, compare the six-digit subheadings inside it, then the eight-digit tariff lines, then the two-digit statistical suffixes. USITC notes that the legal text ends at the 8-digit level, where the duty rate sits, and that the full 10-digit statistical reporting number must be used on the entry. Indented lines can only narrow the line above them; they never widen it. If you are unsure what each column means, see how to read the HTS.

Step 6: Check CBP rulings for similar goods

CBP publishes its classification rulings in CROSS. A ruling binds CBP only for the goods described in it, but rulings show how CBP reads the schedule for products like yours. Check the date, the facts and whether the ruling was later modified or revoked. Our guide to CBP binding rulings explains how to search and cite them.

Worked example: an insulated stainless steel water bottle

Take a double-walled, vacuum-insulated stainless steel water bottle with a plastic lid, sold in 18, 24 and 32 ounce sizes.

This is not a hypothetical. In ruling N353266 (January 2026), CBP classified exactly this kind of bottle in 9617.00.1000 after laboratory analysis confirmed the vacuum construction. The history is the useful part: rulings issued between 2014 and 2018 had placed similar insulated stainless steel containers in 7323.93, stainless steel household articles, and in 2021 CBP revoked four of them in ruling H303684, citing GRIs 1 and 6 and the Section XV exclusion. At today's rates, 7323.93.00 carries a 2% general rate against 7.2% for 9617.00.10, so the earlier code understated the duty. Old rulings can be wrong, which is why you check their status.

Step 7: Check additional duties and record your decision

The 8-digit rate is not always the whole duty. Chapter 99 holds temporary and additional duties that are reported alongside your Chapter 1 to 97 code, and many depend on the country of origin. CBP rulings now say plainly that they do not address those additional duties. Read our guide to HTS Chapter 99 before you estimate landed cost.

Then write down what you decided: the 10-digit code, the HTS revision and effective date, the notes and rulings you relied on, and who approved it. The customs classification compliance checklist covers what a defensible file looks like.

Mistakes that send searches the wrong way

• Searching marketing names. "Hydration bottle", "athleisure set" or "smart band" are not schedule terms. Translate the product into what it is made of and what it does.
• Taking the first search hit. Keyword search ranks by words, not by law. A hit in the wrong chapter can look convincing until you read the notes.
• Skipping the notes because the heading seems obvious. Exclusion notes exist precisely for products that look like they belong somewhere they do not.
• Copying an old ruling without checking its status. The bottle example above shows that CBP revokes rulings it no longer agrees with.
• Forgetting the revision. A code that was valid when you set up a SKU may have been split or replaced since. Check the current revision before each new shipment cycle.

When to get help

If the product is complex, high in value or genuinely ambiguous, ask CBP for a binding ruling before you import. USITC also points importers to CBP's Centers of Excellence and Expertise and to import specialists at the port for informal help. A licensed customs broker can file and advise, but the importer of record still answers for the code.

Speeding up the first draft

HTS Pilot follows the same order of reasoning on a product description. It narrows the schedule by chapter, heading and subheading, applies GRI and chapter-note rules to exclude codes that cannot apply, compares the remaining candidates with CBP rulings as precedents, and proposes a 10-digit code with alternatives, reasons, sources and a confidence score. If the description leaves out a deciding fact, it asks for it. The result is a suggestion for reference, not an official classification decision, and the final call stays with you or your reviewer.

Summary

Finding an HTS code is a reading exercise: describe the product fully, let the notes and GRIs choose the heading, work down level by level, test the answer against CBP rulings and record why. Done that way, the code you declare is one you can defend.

Frequently asked questions

How do I find the HTS code for my product?

Write a full description first: material and percentages, construction, function, user and condition. Then find the likely chapter in the HTS, read the heading terms and the section and chapter notes, apply the General Rules of Interpretation in order, and work down to the 10-digit line. Check CBP rulings on similar goods before you settle on it.

Is there a free official HTS code lookup?

Yes. The US International Trade Commission publishes the full schedule with a search tool at hts.usitc.gov, free of charge. CBP's CROSS database at rulings.cbp.gov lets you search past classification rulings by product words, which often helps when the schedule uses legal terms that differ from everyday product names.

Who decides the correct HTS code?

The importer of record declares the code and must use reasonable care when doing so. CBP can accept or change it when it reviews the entry. If you want CBP's position before importing, you can request a binding ruling. Brokers, tools and suppliers can help, but the responsibility for the declared code stays with the importer.

What if two HTS codes seem to fit my product?

Apply the General Rules of Interpretation in order. GRI 1 and the legal notes settle most cases. If two headings still apply, GRI 3 prefers the most specific description, then the material or component that gives the essential character, then the heading that comes last in numerical order. Rulings on similar goods show how CBP has applied this.

Sources

The official texts and pages this article relies on. Check them for the current version before you act.

1. FAQs about tariff classification and the HTS - U.S. International Trade Commission usitc.gov
2. General Rules of Interpretation, HTS 2026 Revision 20 - USITC hts.usitc.gov
3. CBP ruling N353266: vacuum-insulated stainless steel water bottle rulings.cbp.gov
4. CBP ruling H303684: revocation of rulings on insulated stainless steel bottles rulings.cbp.gov
5. HTS Chapter 61, 2026 Revision 20 - USITC hts.usitc.gov
6. HTS Search - USITC hts.usitc.gov

This article is general information, not legal advice and not a classification decision. Tariff texts, rates and rulings change: check the current official sources, and ask the customs authority for a binding ruling where the answer matters.