HTS heading 5509 · Chapter 55
HTS 5509: Yarn of synthetic staple fibers, not put up for retail…
HTS heading 5509 covers yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale. It has 23 tariff lines with a duty rate; the general (MFN) rates are 13.2% (5 lines), 10.6% (4 lines), 9% (4 lines) and others.
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| Containing 85 percent or more by weight of staple fibers of nylon or other polyamides: | |||||
| 5509.11.00.00 | Single yarn (604)[kg] | 9.4% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.12.00.00 | Multiple (folded) or cabled yarn (604)[kg] | 10.6% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | Estimate → |
| Containing 85 percent or more by weight of polyester staple fibers: | |||||
| 5509.21.00.00 | Single yarn (604)[kg] | 9.7% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.22.00 | Multiple (folded) or cabled yarn | 10.6% | Free (AU,BH,CL,CO,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 61.5% | |
| 5509.22.00.10 | Multiple (folded), with a final "Z" twist (200)[kg] | Estimate → | |||
| 5509.22.00.90 | Other (604)[kg] | Estimate → | |||
| Containing 85 percent or more by weight of acrylic or modacrylic staple fibers: | |||||
| 5509.31.00.00 | Single yarn (604)[kg] | 9% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.32.00.00 | Multiple (folded) or cabled yarn (604)[kg] | 10% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | Estimate → |
| Other yarn, containing 85 percent or more by weight of synthetic staple fibers: | |||||
| 5509.41.00 | Single yarn | 9% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | |
| 5509.41.00.10 | Of polyvinyl alcohol (PVA) fibers (604)[kg] | Estimate → | |||
| 5509.41.00.90 | Other (604)[kg] | Estimate → | |||
| 5509.42.00 | Multiple (folded) or cabled yarn | 7% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | |
| 5509.42.00.10 | Of polyvinyl alcohol (PVA) fibers (604)[kg] | Estimate → | |||
| 5509.42.00.90 | Other (604)[kg] | Estimate → | |||
| Other yarn, of polyester staple fibers: | |||||
| 5509.51 | Mixed mainly or solely with artificial staple fibers: | ||||
| 5509.51.30.00 | Single yarn (607)[kg] | 9.7% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.51.60.00 | Multiple (folded) or cabled yarn (607)[kg] | 10.6% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | Estimate → |
| 5509.52.00.00 | Mixed mainly or solely with wool or fine animal hair (607)[kg] | 12% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| 5509.53.00 | Mixed mainly or solely with cotton | 13.2% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | |
| 5509.53.00.30 | Not exceeding 52 nm (607)[kg] | Estimate → | |||
| 5509.53.00.60 | Exceeding 52 nm (607)[kg] | Estimate → | |||
| 5509.59.00.00 | Other (607)[kg] | 13.2% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| Other yarn, of acrylic or modacrylic staple fibers: | |||||
| 5509.61.00.00 | Mixed mainly or solely with wool or fine animal hair (607)[kg] | 13.2% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| 5509.62.00.00 | Mixed mainly or solely with cotton (607)[kg] | 12% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| 5509.69 | Other: | ||||
| Mixed mainly or solely with artificial staple fibers: | |||||
| 5509.69.20.00 | Single yarn (607)[kg] | 9% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.69.40.00 | Multiple (folded) or cabled yarn (607)[kg] | 10% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | Estimate → |
| 5509.69.60.00 | Other (607)[kg] | 13.2% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| Other yarn: | |||||
| 5509.91.00.00 | Mixed mainly or solely with wool or fine animal hair (607)[kg] | 12% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| 5509.92.00.00 | Mixed mainly or solely with cotton (607)[kg] | 7.5% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
| 5509.99 | Other: | ||||
| Mixed mainly or solely with artificial staple fibers: | |||||
| 5509.99.20.00 | Single yarn (607)[kg] | 9% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 54% | Estimate → |
| 5509.99.40.00 | Multiple (folded) or cabled yarn (607)[kg] | 10.6% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 61.5% | Estimate → |
| 5509.99.60.00 | Other (607)[kg] | 13.2% | Free (AU,BH, CL,CO,IL,JO,KR, MA,OM,P, PA,PE,S,SG) | 81% | Estimate → |
31 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 5509.11.00.00 at the general rate of 9.4%, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (9.4%) | $940.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $987.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Special program codes in this heading
- AU
- U.S.–Australia FTA
- BH
- U.S.–Bahrain FTA
- CL
- U.S.–Chile FTA
- CO
- U.S.–Colombia Trade Promotion Agreement
- IL
- U.S.–Israel FTA
- JO
- U.S.–Jordan FTA
- KR
- U.S.–Korea FTA (KORUS)
- MA
- U.S.–Morocco FTA
- OM
- U.S.–Oman FTA
- P, P+
- CAFTA-DR
- PA
- U.S.–Panama Trade Promotion Agreement
- PE
- U.S.–Peru Trade Promotion Agreement
- S, S+
- USMCA (United States–Mexico–Canada Agreement)
- SG
- U.S.–Singapore FTA
A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.
Frequently asked questions
What is the duty rate for HTS 5509?
Heading 5509 has 23 rate lines. The general (MFN) duty rates are 13.2% (5 lines), 10.6% (4 lines), 9% (4 lines), 12% (3 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.
Do Section 301, 232 or 201 tariffs apply to HTS 5509?
It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.
What fees are added to an import under HTS 5509?
Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.