5509.42.00
Multiple (folded) or cabled yarn
General Rate
7%
MFN / Column 1 General
Special Rate
Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)
FTA / Preferential
Column 2 Rate
61.5%
Non-MFN countries
About HTS 5509.42.00
HTS code 5509.42.00 classifies imports of: Multiple (folded) or cabled yarn. This line sits within Chapter 55 (Synthetic filament tow:), Section XI (Textiles and Textile Articles), and is catalogued as a tariff line in the USITC 2026 Basic Edition. The schedule specifies ad valorem (percentage-of-value) duty for this line. Getting the classification right is the single most important step in import compliance — a wrong code can mean overpayment of duty, shipment delays, or penalties at the border.
The general (MFN / Column 1 General) rate for HTS 5509.42.00 is 7%, which applies to most trading partners of the United States. A special preferential rate of "Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG)" may reduce or eliminate duty when goods qualify under a free trade agreement such as USMCA, CAFTA-DR, or one of the bilateral FTAs. The Column 2 rate of 61.5% applies to imports from non-MFN countries such as Cuba and North Korea — a much higher historical "full" tariff.
Footnotes: [{"columns": ["general"], "value": "See 9903.88.03.", "type": "endnote"}]. Beyond the published rate, importers should check for Section 201 safeguards, Section 301 China tariffs, and any active AD/CVD orders that can materially change the real landed cost. Always verify the classification with a licensed customs broker before committing to a supply contract — this page is a research tool, not a customs ruling.
Duty Rate Summary — HTS 5509.42.00
| Rate Column | Value | Applies To |
|---|---|---|
| General (Column 1) | 7% | Most-favored-nation (MFN) trading partners — the default rate for most US imports. |
| Special | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | Preferential rates under FTAs (USMCA, CAFTA-DR, GSP, etc.) when origin qualifies. |
| Column 2 | 61.5% | Statutory non-MFN rate for goods from countries without normal trade relations (Cuba, North Korea). |
Source: USITC Harmonized Tariff Schedule 2026 Basic Edition. See methodology for refresh cadence.
Details
- Chapter
- 55: Synthetic filament tow:
- Classification
- Tariff Line
- Footnotes
- [{"columns": ["general"], "value": "See 9903.88.03.", "type": "endnote"}]
Related Items in Chapter 55
Of aramids
Other
Of polyesters
Acrylic or modacrylic
Of polypropylene
Other
Of cellulose acetate
Other
Of aramids
Containing 10 percent or more by weight of nylon 12
Frequently Asked Questions
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Understanding This Tariff
HTS 5509.42.00 classifies under Chapter 55 (Synthetic filament tow:), Section XI (Textiles and Textile Articles). The general duty rate of 7% applies to imports from most-favored-nation (MFN) countries, which includes the majority of US trading partners. Preferential rates under free trade agreements (such as USMCA, CAFTA-DR, or bilateral FTAs) may reduce or eliminate duty for qualifying imports from partner countries.
Importers should verify the correct HTS classification with a licensed customs broker or US Customs and Border Protection (CBP) before importing. Misclassification can result in penalties, delays, and additional duties.
Learn More About Tariffs
Related Trade & Economic Data
Data Sources
Tariff data from the U.S. International Trade Commission (USITC) Harmonized Tariff Schedule 2026 Basic Edition.
Duty rates are subject to change. Importers should verify current rates with U.S. Customs and Border Protection (CBP) before making import decisions. Additional duties, anti-dumping duties, or countervailing duties may apply.
Read our methodology — how this data is sourced, computed, and verified.