Chapter 54 of the US Harmonized Tariff Schedule covers man-made filaments. It holds 8 headings with 131 rated lines; pick the heading your goods sit under to see every line beneath it with its general and preferential rates. The general (MFN) rate runs from free to 25% across 131 lines, plus a per-kg charge on some.
| Heading | Goods | General (MFN) rate, before 301/AD/CVD |
|---|---|---|
| 5401 | Man-made filament sewing thread Sewing thread of man-made filaments, whether or not put up for retail sale | General (MFN) rate 11.4% on all 2 lines |
| 5402 | Synthetic filament yarn Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex | General (MFN) rate free to 8.8% on 34 lines |
| 5403 | Artificial filament yarn Artificial filament yarn (other than sewing thread), not put up for retail sale, including artificial monofilament of less than 67 decitex | General (MFN) rate 7.5% to 10% on 11 lines |
| 5404 | Synthetic monofilament and strip Synthetic monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw) of synthetic textile materials… | General (MFN) rate free to 6.9% on 6 lines |
| 5405 | Artificial monofilament and strip Artificial monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw) of artificial textile materials… | General (MFN) rate 5.8% to 6.9% on 2 lines |
| 5406 | Man-made filament yarn, retail packs Man-made filament yarn (other than sewing thread), put up for retail sale | General (MFN) rate 7.5% on all 2 lines |
| 5407 | Synthetic filament woven fabrics Woven fabrics of synthetic filament yarn, including woven fabrics obtained from materials of heading 5404 | General (MFN) rate free to 25% on 48 lines, some also per kg |
| 5408 | Artificial filament woven fabrics Woven fabrics of artificial filament yarn, including woven fabrics obtained from materials of heading 5405 | General (MFN) rate free to 25% on 26 lines, some also per kg |
This is the schedule, and the schedule is not the whole duty. The rates below are the published United States Harmonized Tariff Schedule for the revision named at the foot of this page. They do not include Section 301 duties, antidumping duties or countervailing duties, and for textiles of some origins those exceed the scheduled rate — a line reading 16.5% can land well above it. Nor is a rate of Free a statement that the goods enter free of charge: it is the general rate only, before any of the above. Which line a particular garment falls under is a classification decision, the difference between two adjacent lines can be several times the duty, and a preferential rate applies only where the goods actually qualify under that agreement’s rules of origin. Check with your broker before quoting a landed price.
131 lines in chapter 54. Source: United States International Trade Commission, HTS 2026 Basic Edition, ingested 2026-10-17.