To find the HTS code for your Amazon product, you classify it yourself under the Harmonized Tariff Schedule of the United States (HTSUS): pick the 4-digit heading whose legal text and notes describe the product, apply the six General Rules of Interpretation (GRIs) in order, narrow down to the 8-digit tariff line, then add the 2-digit statistical suffix to reach 10 digits. Before you commit, search CBP’s CROSS database for rulings on similar goods, and if real doubt remains, ask CBP for a binding ruling. Under 19 U.S.C. 1484 the legal duty to classify sits with the importer of record, not with Amazon, your supplier, or a code-lookup website.
This guide covers the method only: it gives no code for any specific product and skips tariff rates and landed cost; for those, see Amazon FBA import tariffs.
What an HTS Code Is: Who Sets the 6, 8 and 10 Digits
An HTS code is a product’s address in a layered schedule. Different bodies own different layers, and only some layers carry legal weight. According to CBP’s informed compliance publication What Every Member of the Trade Community Should Know About: Tariff Classification (May 2004 edition, data checked 2026-10-06):
| Digits | Name in the HTSUS | Who defines it | Legal status |
|---|---|---|---|
| 2 | Chapter | Harmonized System (World Customs Organization) | Chapter titles are for reference only (GRI 1) |
| 4 | Heading | Harmonized System | Legal text; classification starts here |
| 6 | Subheading | Harmonized System | Legal text; shared by countries using the HS |
| 8 | Subheading / tariff-rate line | United States (HTSUS) | Legal text; duty rate is set here |
| 10 | Statistical-reporting number | United States (statistical annotation) | Not legal text; statistics only |
Three points from the CBP publication matter most for sellers:
- The 6-digit level is international. Countries that are party to the HS Convention may only add subdivisions “at a level beyond the 6-digit numerical code provided in the Harmonized System.”
- The 8-digit level is where the duty lives. CBP states: “The legal text of the HTSUS extends only up to the 8-digit level. Tariff-rate lines are found only at the 8-digit level or line.”
- The last two digits are for statistics. CBP says the 10-digit numbers “are for the collection of statistical data only and are not part of the legal text of the HTSUS.” Where a tariff line has no statistical breakdown, two zeroes are added.
So a supplier’s 6-digit “HS code” from China is a starting point, not a US answer. The US 8-digit and 10-digit layers can differ from what another country’s tariff uses after the first six digits.
Who Is Responsible for Classifying Your Amazon Product
The importer of record is. CBP’s tariff classification publication says that, under 19 U.S.C. 1484, “the importer of record is responsible for using reasonable care to enter, classify and determine the value of imported merchandise.” CBP then fixes the final classification when the entry is liquidated.
For an Amazon seller importing private-label goods, that usually means your own business. Your freight forwarder or customs broker files the entry on your behalf, and a sourcing agent may suggest a code, but the reasonable-care obligation is still yours. If you are still choosing who handles the shipment, see Amazon FBA freight forwarders and shipping from China to Amazon FBA.
Why it matters beyond the duty rate: CBP notes that classification also determines “whether the goods are subject to quotas, restraints, embargoes or other restrictions.” On consequences, the same publication states that incorrect classification “may lead to delays and increased duties (plus interest),” and that the failure to use reasonable care “may also lead to detention or seizure of the merchandise, and the imposition of civil or criminal penalties.”
The Six General Rules of Interpretation, in Plain Order
CBP is explicit that the GRIs are not optional: “The GRIs are intended to be consulted and applied each time merchandise is to be classified under the Harmonized System.” There are six, and they are applied in sequence. You only move to the next rule when the earlier one cannot settle the question.
| Rule | What it says, in plain English | When a seller hits it |
|---|---|---|
| GRI 1 | Classify by the terms of the headings and any section or chapter notes. Titles, the table of contents and the alphabetical index are reference aids only and carry no legal weight. | Always. Most products are settled here. |
| GRI 2(a) | An incomplete, unfinished, unassembled or disassembled article is classified as the finished article if, as presented, it has the “essential character” of the finished article. | Flat-packed furniture, kits, parts shipped to be assembled later. |
| GRI 2(b) | A heading that names a material also covers mixtures and goods made wholly or partly of that material. Goods of more than one material go to GRI 3. | Multi-material products, e.g. steel plus plastic. |
| GRI 3(a) | If two or more headings fit, the most specific description wins. | A product that seems to fit two headings. |
| GRI 3(b) | Mixtures, composite goods and retail sets are classified by the component that gives them their essential character. | Bundles, gift sets, multi-function items. |
| GRI 3(c) | If 3(a) and 3(b) still cannot decide, use the heading that occurs last in numerical order among those that equally merit consideration. | Genuinely tied cases. |
| GRI 4 | Goods that fit nowhere are classified under the heading for the goods “to which they are most akin.” CBP says this rule “should be applied very infrequently.” | Rare; novel products. |
| GRI 5 | Fitted long-term cases (camera cases, instrument cases) sold with their article go with the article; ordinary packing goes with the goods unless clearly reusable. | Products sold with a case or reusable container. |
| GRI 6 | Repeat GRIs 1-5 at the subheading level, comparing only subheadings at the same level. | Every time you go from 4 digits to 6 and beyond. |
Two working rules follow from this, both stated in CBP’s publication. First, you choose the 4-digit heading before you look at any subheading text: “only 4-digit headings are comparable.” In CBP’s electric toothbrush example, a toothbrush subheading inside the brush heading must not sway the choice between the brush heading and the domestic appliance heading. Second, “essential character” has no fixed definition. CBP says it “must be determined on a case-by-case basis” and may come from the nature of a material or component, its bulk, quantity, weight or value, or its role in the use of the goods.
The HTSUS adds Additional U.S. Rules of Interpretation and Additional U.S. Notes, which CBP lists as legal text, so read your chapter’s notes too.
How to Find the HTS Code for Your Product: A Four-Step Workflow
This is the hts code lookup sequence we recommend for an Amazon seller classifying a new SKU. It follows the order the GRIs impose.
Step 1: Write a classification description, not a listing title. Record what the product is made of (with rough percentages by weight or value), how it works, what it is principally used for, and how it is packed. Ignore marketing words. Your Amazon title says what shoppers search for; the HTSUS asks what the goods are. This description is also exactly what CBP asks for in a ruling request, so it is reusable later.
Step 2: Find candidate headings in the official schedule. The USITC publishes the HTSUS at hts.usitc.gov. As of 2026-10-06 the site shows the 2026 HTS Revision 20, with a search box, chapter-by-chapter PDF downloads, the General Rules of Interpretation as a separate download, and an HTS Help Guide. Search terms from your description, then open the full chapters that come up. Treat keyword hits like the alphabetical index, which GRI 1 says is a reference aid only. Read the heading text and the section and chapter notes for every candidate, because a note can exclude your product from a heading whose title looks perfect.
Step 3: Apply the GRIs in order to reach 4 digits, then GRI 6 down to 8. If one heading covers the product under GRI 1, stop there. If several fit, work through GRI 2 and GRI 3 and write down which rule decided it and why. Then compare subheadings one level at a time (single-dash against single-dash, two-dash against two-dash) until you land on an 8-digit tariff line.
Step 4: Add the statistical suffix and check it against rulings. Pick the 2-digit statistical annotation that matches the product (or 00 if the line has none). Then search CROSS for rulings on similar goods, as described in the next section. Save your description, the candidate headings you rejected, the GRI that decided it and the rulings you checked. That file is your record of reasonable care.
If your sourcing agent or supplier sent a code, run it through the same four steps instead of copying it; see working with China sourcing agents for what to ask them for.
Searching CBP’s CROSS Rulings Database
CROSS (Customs Rulings Online Search System, rulings.cbp.gov) is CBP’s free, searchable archive of its rulings. According to the CROSS home page (data checked 2026-10-06):
- CROSS can be searched “using keywords and Boolean operators,” and it cross-references results with their “modified, revoked or referenced counterparts.”
- Rulings are split into Headquarters (HQ) and New York (NY) collections spanning 1989 to present. Initial binding ruling requests filed online go to the National Commodity Specialist Division in New York.
- The October 5, 2026 update brought the total to 222,007 searchable rulings.
- CBP notes that “not all rulings issued by HQ and NY since 1989 are yet included in the database,” so a missing ruling does not prove none exists.
How to use it well:
- Search by product description and by candidate code. Searching the 6-digit or 8-digit number you arrived at shows how CBP has treated other goods on that line.
- Read the reasoning, not just the result. A ruling explains which GRI decided the case. If your product differs in material, function or packaging, the outcome may differ.
- Check whether the ruling has been modified or revoked. CBP’s publication notes that a ruling stays binding “unless modified or revoked.”
- Remember who a ruling binds. Under 19 CFR 177.9(b)(2), a classification ruling “will be applied only with respect to transactions involving articles identical to the sample submitted with the ruling request or to articles whose description is identical to the description set forth in the ruling letter.” Someone else’s ruling is strong evidence, not cover for your goods.
When to Ask CBP for a Binding Ruling
A binding ruling is the strongest answer available before you import. Under 19 CFR 177.9, a ruling letter “represents the official position of the Customs Service with respect to the particular transaction or issue described therein and is binding on all Customs Service personnel” until modified or revoked. By contrast, 19 CFR 177.1 states: “Oral opinions or advice of Customs Service personnel are not binding on the Customs Service.”
Ask for one when:
- your product plausibly fits two or more headings with different duty rates,
- it is a set, bundle or multi-material product where essential character is arguable,
- CROSS shows conflicting rulings for similar goods, or
- a wrong code would mean a large duty difference across repeated shipments.
How it works, per CBP’s Requirements for Electronic Ruling Requests page (data checked 2026-10-06):
| Item | What CBP’s page says |
|---|---|
| Where to file | Online through the eRulings Template, which goes to the National Commodity Specialist Division (NCSD) in New York; filing by mail remains available |
| Acknowledgement | An email with a binding ruling control number “within one business day” if received in good order |
| Timing | Generally, NCSD “will issue all such rulings within 30 calendar days of the date of receipt,” with possible delay for a lab report or another agency; rulings referred to Headquarters are issued by mail “within 90 days of receipt” |
| Scope | The request “must concern prospective shipments” |
| Item limit | “no more than five (5) items of the same class or kind” per request |
| What to include | Description of the good in its imported condition, component materials, principal use in the US, commercial or common name, photos or sketches, ports of entry if known |
| At entry | Provide a copy of the ruling or its control number with the entry documents |
CBP’s page does not list a filing fee. It also suggests you first “attempt to determine the likely applicable classification” yourself, which is exactly what the four-step workflow above produces.
Common Mistakes When Classifying Amazon Products
- Using the Amazon category or listing title as the classification. Neither is part of the HTSUS legal text.
- Copying the supplier’s export code. Only the first six digits are shared internationally; the US 8-digit and 10-digit layers are national.
- Choosing a subheading before the heading. GRI 6 only applies once the 4-digit heading is settled.
- Classifying a bundle by its most expensive item without analysis. GRI 3(b) asks for essential character, which CBP says is decided case by case.
- Skipping the chapter notes. Notes can include or exclude goods regardless of how well a heading title seems to fit.
- Not keeping a record. Reasonable care is easier to show when your reasoning is written down before the goods ship. Your ISF and entry data should match it; see ISF filing for Amazon FBA.
Frequently Asked Questions
Is an HS code the same as an HTS code?
Not quite. The HS code is the international 6-digit code. The HTS code is the US extension of it: 8 digits of legal text plus a 2-digit statistical suffix, for 10 digits in total.
Does Amazon assign an HTS code to my product?
Under 19 U.S.C. 1484, as summarized in CBP’s tariff classification publication, the importer of record is responsible for classifying imported goods. Whether you ship through Amazon Global Logistics or another forwarder, the classification decision remains the importer’s.
Which digits decide the duty rate?
The 8-digit tariff line. CBP states that all goods within the 10-digit numbers of an 8-digit provision receive the same rate of duty as that 8-digit provision.