What is the duty rate for HTS 550921?

The current 2026 General duty rate for HTS 550921 is 9.7%. Special (FTA) rate: Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG). Always verify with CBP before importing as Section 301, Section 232, and anti-dumping duties may also apply depending on country of origin.

What products are classified under HTS 550921?

HTS 550921 covers single yarn (604). This 6-digit Harmonized Tariff Schedule subheading includes 1 8-digit and 10-digit statistical suffixes — see the full classification table on this page for the specific product descriptions and applicable duty rates.

Can I get duty-free treatment for goods classified under HTS 550921?

Many products under HTS 550921 qualify for duty-free treatment under US Free Trade Agreements (USMCA, KORUS, and others) if they meet the applicable rules of origin. Check the Special rate column for your country. FTA preferences require origin certification documentation.

How do I verify the correct HTS classification for my product?

Request a binding ruling from CBP's National Commodity Specialist Division for the most reliable classification. Classification depends on the product's composition, function, and the General Rules of Interpretation (GRI). Consult a licensed customs broker for complex classifications. Misclassification can result in retroactive duties and penalties.

How do I find the correct HTS code for my product?

Start with the General Rules of Interpretation (GRI) and identify your product's function, composition, and form. Check the Section Notes and Chapter Notes for your product's chapter. Use CBP's online CROSS database for published ruling precedents. For binding certainty, request a written ruling from CBP's National Commodity Specialist Division.

What additional duties might apply beyond the base MFN rate?

Three main categories of additional duties may apply: Section 301 tariffs (7.5-25% on Chinese-origin goods), Section 232 tariffs (10-25% on steel and aluminum), and anti-dumping/countervailing duties (ADD/CVD, which vary by product and country). Some products face multiple overlapping duties. Check all applicable trade remedies for your specific product and origin.

Can I reduce or eliminate import duties legally?

Yes, through several strategies: (1) Use Free Trade Agreements — USMCA, KORUS, and other FTAs provide duty-free treatment for qualifying goods; (2) Tariff engineering — legally modify your product's design or materials to qualify for a lower-duty classification; (3) Verify correct classification — overpayment due to misclassification is common and preventable; (4) Apply for Chapter 99 exclusions from Section 301 duties where available.

What is a CBP binding ruling and should I get one?

A CBP binding ruling is a written determination from CBP's National Commodity Specialist Division that establishes the correct HTS classification for your product. It is binding on CBP at all ports of entry. If you import high-value products or products with ambiguous classification, a binding ruling provides legal certainty and protects you from retroactive duty assessments.

How often do HTS duty rates change?

MFN duty rates are relatively stable, changing only through congressional legislation or trade agreement modifications. However, Section 301 tariff rates and exclusions change frequently — USTR updates exclusion lists periodically. Anti-dumping duties are reviewed every 5 years (sunset reviews) but can be modified at any time. Section 232 rates are adjusted by presidential proclamation. Check current rates before each import.

HTS Subheading 2026 Rates 1 sub-classifications

HTS Code 550921: Single yarn (604) — 2026 US Tariff Rates

Quick Answer

HTS 550921 = Single yarn (604)
Duty rate: 9.7% · Unit: 55-digit · Column 1: 9.7%

Complete Classification Table

All 8-digit and 10-digit tariff codes under HTS subheading 550921. Use this table to find the correct statistical suffix and applicable duty rate for your product.

HTS Code	Full Description	General Rate	Special Rate	Column 2 Rate
`5509.21.00.00`	Single yarn (604)	9.7%	Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)	54%

Duty Estimator

This page lists rates that may be ad valorem, specific, compound, or quota-based. The automatic estimator is intentionally disabled so a quantity-based rate is never mistaken for a percentage. Use the exact suffix, unit of quantity, origin, and current CBP guidance before calculating a shipment.

At a Glance

The General duty rate for HTS 550921 is 9.7% · 1 statistical suffix · 0 duty-free.
1 sub-classification offer Special (FTA) rate preferences — check the Special column for USMCA, KORUS, and other FTA eligibility.
This code falls under a chapter covering products classified under this chapter.

Importing Under HTS 550921: What Importers Ask

How is country of origin determined for textile products?

Textile country of origin is determined under 19 CFR §102.21 — generally where the fabric was woven or the garment was wholly assembled. This is stricter than the substantial transformation test used for other goods. UFLPA documentation requirements apply to cotton products.

Can USMCA reduce my textile import duties to zero?

Yes, if the product meets the USMCA yarn-forward rule: yarn must be spun, fabric woven, and garment assembled in USMCA territory. Provide a valid USMCA certificate of origin. Without meeting yarn-forward, the MFN rate applies, which for apparel can be 5-32%.

What forced labor documentation does CBP require for this classification?

Under the UFLPA, CBP presumes all cotton and textile products linked to Xinjiang involve forced labor. Importers must provide a supply chain traceability certificate proving the product did not pass through the Xinjiang Uyghur Autonomous Region. CBP detains non-compliant shipments at the port.

What Importers Need to Know About HTS Chapter 55

This subheading falls under an HTS chapter covering products classified under this heading of the Harmonized Tariff Schedule. Importers of these products should be aware of the following trade compliance considerations:

Importers should verify classification with CBP or a licensed customs broker. Check whether Section 301, Section 232, or anti-dumping/countervailing duties apply to your product based on country of origin and specific HTS classification.

For the specific subheading HTS 550921, we recommend you:

Verify the correct 10-digit statistical suffix — even within a 6-digit subheading, duty rates can differ significantly between suffixes
Check FTA eligibility — if your product qualifies for preferential treatment under USMCA, KORUS, or another FTA, you may reduce or eliminate duties by providing the required origin certification
Monitor for trade remedy changes — Section 301, Section 232, and anti-dumping duties are updated periodically. A rate that was correct last quarter may have changed
Consult CBP resources — for binding classification rulings, CBP's National Commodity Specialist Division provides written determinations

Quick Answer: HTS 550921 Duty Rates

HTS subheading 550921 (single yarn (604)) contains 1 sub-classification. Suffix 5509.21.00.00: General rate 9.7%, Special (FTA): Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG). Always verify with CBP — Section 301, Section 232, and ADD/CVD may apply.

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Official Sources

PoliteDraft recommends verifying duty rates directly with official government sources before filing import documentation.

PoliteDraft Editorial Team Trade Compliance Writer

Independent editors organize official USITC HTS data and explain how to check the exact suffix, unit, origin, and trade remedies. This site is a research reference, not a customs broker, attorney, or classification opinion.

Data source: USITC HTS 2026 Rev. 19 Last processed: 2026-09-15 Sub-classifications: 1

Related HTS Codes in This Section

550111 550119 550120 550130 550140 550190 550210 550290

Trade & Compliance Insights for Chapter 55

Expert analysis on tariff policy, trade remedies, and compliance strategies relevant to HTS 550921.

Section XI Tariff Guide: Textiles, Apparel & Footwear — 2026 HTS Import Duties

Complete tariff guide for US importers of textiles, apparel, and footwear (HTS Section XI, Chapters 50-63). Covers country-of-origin...

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Browse All HTS Codes in This Section

See the complete list of HTS subheadings under the same section as 550921.

View Section Overview →

<strong>Editorial note:</strong> The first listed General rate for HTS 550921 (Single yarn (604)) is 9.7%. Rates can differ by suffix, origin, and trade remedy; verify the exact line in the current USITC schedule and with CBP or a licensed customs broker.