Harmonized Tariff Schedule of the United States · HTS code · HS 8504.90

8504.90.75

8504.90.75: Electrical transformers, static converters: parts, other, printed circuit assemblies, other

Transformer and converter parts

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. 8504.90 Parts:
  3. Other:
  4. Printed circuit assemblies:
  5. 8504.90.75 Other

What you pay

Importing into USA

Customs duty Free standard rate depends on the country of origin
Additional duties and charges 3 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 3

  • Additional dutySection 232 — Steel, aluminium, copper and derivatives 15%
    Applies to goods from
    all countries except Cuba, North Korea, Russia, Belarus
    In force
    from 6 April 2026
    Legal act
    HTSUS 9903.82.10
  • Additional dutySection 232 — Steel, aluminium, copper and derivatives 25%
    Applies to goods from
    Belarus, Cuba, North Korea, Russia
    In force
    from 6 April 2026
    Legal act
    HTSUS 9903.82.12
  • 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

Same subheading in other tariffs

8504.90 Electrical transformers, static converters: parts

USA lines: 8504.90

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.

  • N313158 U.S. CBP 30 July 2020 · 8504.90.96.42

    The tariff classification of wound transformer cores from China.

  • N307881 U.S. CBP 13 December 2019 · 8504.90.96.34

    The tariff classification of laminated cores and sheets from India

  • N305176 U.S. CBP 23 July 2019 · 8504.90.96.90

    The tariff classification of plastic covers from Italy

  • N302344 U.S. CBP 11 February 2019 · 8504.90.96.42

    The tariff classification, country of origin marking and North American Free Trade Agreement (NAFTA) eligibility of transformer toroids from Mexico

  • 600013686 HMRC 24 November 2025 – 23 November 2028 · 8504 90 90 00

    This component is a Printed Circuit Board Assembly (PCBA- Charging Station Board) used in the charging station of robotic lawn mowers, by Regulating power to the mower during charging, by converting AC mains input to a stable DC output (18V) and controls the boundary wire signal when the mower is…

  • 600011457 HMRC 8 October 2024 – 7 October 2027 · 8504 90 17 00

    Casings for electrical transformers. Made from steel and used to house the internal components in step-up step-down transformers of the type used at substations, rail and residential sites. These are the empty casings (shells) with all the internal cores and bindings removed and are therefore…

7 rulings in total for this code

Legal notes

Notes

Chapter notes: Chapter 85 →

HTS code 8504.90.75 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 8504.90 (electrical transformers, static converters: parts).

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

For the same subheading, the UK duty is free, the EU duty is free, the Türkiye duty is 2.2%, the Canada duty is free, the Mexico duty is free, the Brazil duty is 14.4%–20%, the Argentina duty is 12.6%–16%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is free, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 0%–13% and the Nigeria duty is 5%.

The United States imported goods of subheading 8504.90 worth US$3bn in 2024; the largest supplier was Mexico.

Questions and answers

What is the USA import duty for HTS code 8504.90.75?

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

Where does the United States import these goods from?

For subheading 8504.90 as a whole, the largest supplier in 2024 was Mexico (US$743m), followed by China.

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