Correct HTS classification means assigning every garment the specific 10-digit code that matches its fiber content, construction method, and intended use, since even a small error between similar-looking codes can change the duty rate applied at the US border. Apparel sits under HTS Chapter 61 for knitted goods and Chapter 62 for woven goods, and the difference between a correct and incorrect code often comes down to details that look minor on a spec sheet but matter a great deal to US Customs and Border Protection (CBP). Getting this right in 2026 is harder than it used to be, because the tariff base itself shifted mid-year. Brands that treat classification as a one-time task rather than an ongoing discipline are the ones most likely to overpay, or worse, face a retroactive bill.
About the Author: This article is written from Wadhsons’ perspective as a supply chain and sourcing partner with 35+ years of China-based manufacturing experience and a specialism in denim design and production, where fiber blends, washes, and trims regularly raise classification questions for the US and other import markets.
An HTS code is a 10-digit number assigned under the Harmonized Tariff Schedule of the United States that tells CBP exactly what a product is, which in turn tells CBP exactly what duty rate applies to it. The first six digits are shared internationally under the Harmonized System, while the final four digits are a US-specific extension that captures finer detail, things like fiber blend percentages or whether a garment is for men, women, or children [slideshare.net].
For apparel specifically, two chapters do almost all of the work. Chapter 61 covers knitted or crocheted garments, and Chapter 62 covers woven garments [woolgold.com]. A cotton knit t-shirt and a cotton woven shirt look similar to a shopper, but they sit in entirely different chapters with entirely different duty treatment. As of 2026, a cotton knit t-shirt under 6109.10 carries a base duty rate of 16.5 percent, while woven cotton trousers under 6203.42 carry 16.6 percent, before any country-specific surcharges are layered on top. Those two numbers look close, but the codes that sit near them in the schedule can differ by several percentage points depending on fiber blend and garment type, which is exactly why precision at the 10-digit level matters more than it looks like it should.
A reliable HTS code lookup starts with the garment’s physical facts, not its marketing description. CBP classification criteria include fiber content by weight, construction method (knit versus woven), gender or age group, and intended use, and the rules apply those criteria in a fixed order rather than leaving room for judgment calls [woolgold.com][scribd.com]. A 60 percent cotton, 40 percent polyester denim jacket is classified as a cotton garment under the HTSUS chief weight rule, since cotton is the predominant fiber by weight, not because it “feels like denim” or because cotton happens to be the larger share in a loose sense. The schedule applies a chief weight rule for determining how a mixed-fiber good is classified, and getting that determination wrong is one of the most common ways apparel importers end up in the wrong chapter entirely [woolgold.com].
A practical lookup process looks like this:
Building on that last point, the harder question for many brands is not the HTS code itself but the origin determination sitting behind it.
Country of origin is a separate legal determination from the HTS code, and it is the piece that decides whether a garment qualifies for preferential treatment under a trade agreement. CBP typically applies either a tariff shift rule or, for agreements like the relevant NAFTA successor framework, a yarn-forward rule, which requires that yarn formation, fabric weaving or knitting, and garment assembly all happen within the qualifying trade region [blog.customsandtradelogistics.com]. A denim jacket cut and sewn in one country from fabric woven somewhere else entirely may not qualify for preferential duty treatment even if the final assembly happened in the “right” place.
This is where an HTS code classification and a US customs duty calculator need to work together rather than in isolation. The code sets the base rate; the origin determination decides which surcharges or preferences modify that base rate. Running the code through a calculator without confirming origin gives a number that looks precise but may not reflect what CBP actually assesses at entry.
2026 has been an unusually active year for apparel tariff policy, and brands relying on 2025 duty assumptions are now working from outdated numbers. The 10 percent Section 122 base tariffs that had applied broadly expired and were replaced on July 24, 2026 by new Section 301 forced-labor tariffs, set at 10 or 12.5 percent, applied across 60 trading partners. Separately, the Supreme Court struck down the 2025 IEEPA tariffs in February 2026, which opened a path for importers to seek refunds on duties already collected on clothing under that earlier regime.
Neither change altered the HTS codes themselves, the 10-digit classifications are a stable reference system, but both changed what gets added on top of the base rate depending on sourcing country. A brand that classified correctly in January 2026 could still be paying the wrong total duty today if it has not re-checked which surcharge regime applies to its current supplier countries.
Misclassification creates two separate costs, lost money now and legal exposure later, and most importers only budget for the first one. The common errors are predictable: misreading fiber blend percentages, confusing knit for woven construction (or the reverse), and failing to correctly apply the chief weight rule on mixed-material garments. These mistakes tend to surface at the worst possible time, during a CBP audit years after the goods have already cleared and been sold.
The penalty structure under 19 U.S.C. 1592 scales with culpability. Negligence can draw a penalty of up to twice the unpaid duties. Gross negligence raises that to up to four times the unpaid duties. Fraud penalties can equal the full domestic value of the imported merchandise, on top of the duties owed. A supply chain partner that documents fiber content, construction, and origin at the point of production, not retroactively from memory, gives a broker the clean paper trail needed to defend a classification if it is ever questioned.
The strongest defense against misclassification is accurate product data captured before the garment ever reaches a port. This is a sourcing and design function as much as a customs function, and it is where Wadhsons’ approach differs from a purely transactional vendor relationship. With an in-house design department that specifies fabric composition and construction down to the thread level, and a sourcing team with 35+ years of China-based experience plus teams across other key production markets, Wadhsons builds the documentation trail, fiber blend, weave or knit structure, country of manufacture, into the product record from the first sample, not as an afterthought once the shipment is already booked.
This matters particularly for denim, where fabric weights, stretch blends, and heavy trim work (studded belts, embroidered pockets, leather patches) can shift a garment’s classification in ways a generic spec sheet misses. Attention to that level of detail is a quality discipline first, but it pays a second dividend at the customs desk.
What is the difference between Chapter 61 and Chapter 62 for apparel?
Chapter 61 covers knitted or crocheted garments, and Chapter 62 covers woven garments. The two chapters have different duty structures, so correctly identifying construction method is one of the first steps in classification [woolgold.com].
What is an HTS code lookup tool used for?
It matches a product’s physical characteristics, fiber content, construction, gender, and use, to the correct 10-digit code and its associated duty rate, rather than relying on a product description alone [slideshare.net].
Does a US customs duty calculator account for trade agreement preferences?
A calculator applies the base rate tied to the HTS code, but preferential rates depend on a separate origin determination, typically a tariff shift or yarn-forward rule, which must be confirmed independently [blog.customsandtradelogistics.com].
What is the penalty for classifying apparel under the wrong HTS code?
Penalties scale with culpability under 19 U.S.C. 1592: up to twice the unpaid duties for negligence, up to four times for gross negligence, and up to the full domestic value of the goods for fraud, in addition to the duties owed.
Did HTS codes for clothing change in 2026?
The codes themselves did not change, but the surcharges layered on top did. Section 122 base tariffs expired and were replaced by Section 301 forced-labor tariffs of 10 or 12.5 percent on July 24, 2026, and the Supreme Court’s February 2026 ruling against the 2025 IEEPA tariffs opened a path to duty refunds.
Why do mixed-fiber garments cause classification problems?
Blended fabrics are classified according to the chief weight rule, meaning the fiber that predominates by weight determines the classification, rather than a simple assumption based on appearance or feel. Getting that determination wrong is one of the most frequent sources of apparel misclassification.
Can a sourcing partner help with HTS code classification?
A sourcing partner cannot file customs entries on a brand’s behalf, but accurate, documented fiber and construction data from the production stage gives a broker what it needs to classify correctly and defend that classification if questioned later.
Wadhsons is a multinational supply chain and sourcing partner founded in 1985, with 35+ years of China-based manufacturing experience and offices and teams across key production markets worldwide. The company is known first for its in-house design department and its specialism in denim design and manufacturing, built on close attention to fabric detail, construction, and fair, reasonable pricing for premium materials. Beyond design, Wadhsons manages sourcing, production control, quality inspection, logistics, and compliance across the full supply chain, giving brands a single accountable partner from first sample to final shipment. Its focus on digitalization and data-driven supply chain insight supports the kind of accurate, traceable product documentation that reduces classification risk downstream.
If your brand needs a sourcing and design partner that gets the details right from the first sample, visit Wadhsons to get in touch.
