Key facts
- HS subheading
- 5503.20
- Duty (MFN)
- 4.3%
- National lines
- 4
- Tariff
- United States
- Chapter
- 55: Man-made staple fibres
Summary
The United States tariff splits HS 5503.20 (synthetic staple fibers, not carded, combed or otherwise processed for spinning, of polyesters) into 4 national lines: 5503.20.00.15 (bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers together), 5503.20.00.25 (measuring less than 3.3 decitex), 5503.20.00.45 (measuring 3.3 decitex or more but less than 13.2 decitex) and 5503.20.00.65 (measuring 13.2 decitex or more). The general (MFN) duty is 4.3% on all 4 lines.
United States lines under 5503.20
The United States tariff splits HS 5503.20 (synthetic staple fibers, not carded, combed or otherwise processed for spinning, of polyesters) into 4 national lines: 5503.20.00.15 (bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers together), 5503.20.00.25 (measuring less than 3.3 decitex), 5503.20.00.45 (measuring 3.3 decitex or more but less than 13.2 decitex) and 5503.20.00.65 (measuring 13.2 decitex or more).
The general (MFN) duty is 4.3% on all 4 lines.
- 5503.20.00.15Bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers togetherDuty: 4.3%
- 5503.20.00.25Measuring less than 3.3 decitexDuty: 4.3%
- 5503.20.00.45Measuring 3.3 decitex or more but less than 13.2 decitexDuty: 4.3%
- 5503.20.00.65Measuring 13.2 decitex or moreDuty: 4.3%
In other countries
No other national tariff on border.bot has live lines under 5503.20 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 5503.20?
The United States tariff splits HS 5503.20 (synthetic staple fibers, not carded, combed or otherwise processed for spinning, of polyesters) into 4 national lines: 5503.20.00.15 (bi-component fibers having an outer copolymer sheath that melts at a lower temperature than the core, of a kind used for bonding fibers together), 5503.20.00.25 (measuring less than 3.3 decitex), 5503.20.00.45 (measuring 3.3 decitex or more but less than 13.2 decitex) and 5503.20.00.65 (measuring 13.2 decitex or more).
What is the duty on HS 5503.20 in the United States?
The general (MFN) duty is 4.3% on all 4 lines.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: