Key facts
- HS subheading
- 8504.31
- National lines
- 4
- Tariff
- United States
- Chapter
- 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
Summary
The United States tariff splits HS 8504.31 (other transformers: Having a power handling capacity not exceeding 1 kVA) into 4 national lines: 8504.31.20.00 (unrated), 8504.31.40.35 (having a power handling capacity less than 40 VA), 8504.31.40.65 (having a power handling capacity 40 VA or greater) and 8504.31.60.00 (having a power handling capacity of 1 kVA). The general (MFN) duty differs by line: free on 8504.31.20.00, 6.6% on 8504.31.40.35, 6.6% on 8504.31.40.65 and 1.6% on 8504.31.60.00.
United States lines under 8504.31
The United States tariff splits HS 8504.31 (other transformers: Having a power handling capacity not exceeding 1 kVA) into 4 national lines: 8504.31.20.00 (unrated), 8504.31.40.35 (having a power handling capacity less than 40 VA), 8504.31.40.65 (having a power handling capacity 40 VA or greater) and 8504.31.60.00 (having a power handling capacity of 1 kVA).
The general (MFN) duty differs by line: free on 8504.31.20.00, 6.6% on 8504.31.40.35, 6.6% on 8504.31.40.65 and 1.6% on 8504.31.60.00.
- 8504.31.20.00UnratedDuty: Free
- 8504.31.40.35Having a power handling capacity less than 40 VADuty: 6.6%
- 8504.31.40.65Having a power handling capacity 40 VA or greaterDuty: 6.6%
- 8504.31.60.00Having a power handling capacity of 1 kVADuty: 1.6%
In other countries
No other national tariff on border.bot has live lines under 8504.31 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 8504.31?
The United States tariff splits HS 8504.31 (other transformers: Having a power handling capacity not exceeding 1 kVA) into 4 national lines: 8504.31.20.00 (unrated), 8504.31.40.35 (having a power handling capacity less than 40 VA), 8504.31.40.65 (having a power handling capacity 40 VA or greater) and 8504.31.60.00 (having a power handling capacity of 1 kVA).
What is the duty on HS 8504.31 in the United States?
The general (MFN) duty differs by line: free on 8504.31.20.00, 6.6% on 8504.31.40.35, 6.6% on 8504.31.40.65 and 1.6% on 8504.31.60.00.
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: