Harmonized Tariff Schedule of the United States · HTS code · HS 8504.31

8504.31.60

8504.31.60: Small transformers up to 1 kVA: Having a power handling capacity of 1 kVA

Small transformers up to 1 kVA

Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026

  1. 8504 Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof:
  2. Other transformers:
  3. 8504.31 Having a power handling capacity not exceeding 1 kVA:
  4. Other:
  5. 8504.31.60 Having a power handling capacity of 1 kVA

What you pay

Importing into USA

Customs duty 1.6% standard rate depends on the country of origin
Additional duties and charges 2 additional measures
VAT no federal VAT; a Merchandise Processing Fee of 0.3464 % is charged on formal entries
Duty calculatorCalculate duty and taxes →

US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.

Additional duties and import rules

Charges on top of the customs duty, and rules the goods must meet at the border.

Additional duties and charges 2

  • Additional dutySection 232 — Steel, aluminium, copper and derivatives 200%
    Applies to goods from
    Russia
    In force
    from 10 March 2023
    Legal act
    HTSUS 9903.85.68
  • Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
    Applies to goods from
    China
    In force
    from 24 September 2018
    Legal act
    HTSUS 9903.88.03

Preferential rates by country

Agreement or schemeCountriesRate
General (MFN)—1.6%
US–Australia FTA AUAustraliaFree
US–Bahrain FTA BHBahrainFree
US–Chile FTA CLChileFree
US–Colombia TPA COColombiaFree
US–Israel FTA ILIsraelFree
US–Jordan FTA JOJordanFree
US–Korea FTA KRSouth KoreaFree
US–Morocco FTA MAMoroccoFree
US–Oman FTA OMOmanFree
CAFTA-DR PCosta Rica, Dominican Republic, El Salvador, Guatemala, Honduras, NicaraguaFree
US–Panama TPA PAPanamaFree
US–Peru TPA PEPeruFree
USMCA SCanada, MexicoFree
US–Singapore FTA SGSingaporeFree
Column 2Cuba, North Korea, Russia, Belarus35%

Special: reduced rates under trade agreements and preference programmes; the letters in brackets name the programmes (for example AU = Australia FTA, KR = Korea FTA).

Same subheading in other tariffs

8504.31 Having a power handling capacity not exceeding 1 kVA

USA lines: 8504.31

Binding rulings for similar goods

Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.

  • H306282 U.S. CBP 23 January 2023 · 8504.31.40

    Application for Further Review of Protest No. 2704-19-104352; Classification of a Push-Pull Transformer

  • 600010650 HMRC 26 June 2024 – 25 June 2027 · 8504 31 80 90

    Transformer used in hair clippers, which has an input voltage of 100-240 VAC (this measurement would not exceed 1 kva).

Legal notes

Notes

Chapter notes: Chapter 85 →

In the Harmonized Tariff Schedule of the United States, 8504.31.60 is one of 3 lines under subheading 8504.31, having a power handling capacity not exceeding 1 kVA.

The general duty is 1.6%, and quantities are declared in p/st.

For the same subheading, the UK duty is free, the EU duty is 3.7%, the Türkiye duty is 3.7%, the Canada duty is free, the Mexico duty is 0%–5%, the Brazil duty is 0%–18%, the Argentina duty is 0%–18%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is 5%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3.7%–8% and the Nigeria duty is 5%.

The United States imported goods of subheading 8504.31 worth US$668m in 2024; the largest supplier was Mexico.

Questions and answers

What is the USA import duty for HTS code 8504.31.60?

The general duty in the Harmonized Tariff Schedule of the United States is 1.6%; the supplementary unit is p/st. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.

Is there a lower rate for 8504.31.60 under US trade agreements?

Yes. The Special column reads “Free (A, AU,B, BH,C, CL, CO,D,E, IL, JO, KR, MA, OM,P, PA, PE,S, SG)”: the letters in brackets name the agreements and programmes that grant it.

Where does the United States import these goods from?

For subheading 8504.31 as a whole, the largest supplier in 2024 was Mexico (US$189m), followed by China.

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Typical products

Everyday names, not part of the legal text.