Transformer import duty from the European Union to the USA (2026) — HTS 8504.21.00

25%

HTS code 8504.21.00 · Transformer · origin the European Union · data as of 2026-09-22

A shipment of transformer entering the United States from the European Union is classified under HTS code 8504.21.00 and pays 25% total import duty on its customs value. That is the 0% normal (MFN) rate plus Section 232, which is a separate heading in Chapter 99 of the tariff schedule. The duty is worked out on the customs value of the goods, which is normally what you paid for them; freight, insurance, customs brokerage and any merchandise processing fee come on top and are not included in the figure above.

Heading 9903.82.03: no metals duty if the metal is under 15% of the weight of the article. That depends on the article.

Import duty calculator

Customs value of the goods (USD)

How the rate is built up

Layer	Heading	Rate	As the schedule words it
Normal duty (MFN, column 1-General)	`8504.21.00`	0%	Free
Section 232 (steel / aluminium / copper)	`9903.82.09`	25%	The duty provided in the applicable subheading + 25%
Exempt from the reciprocal tariff	`9903.01.33`	0%	No additional duty
Total		25%

Common ways this question is asked

What is the tariff on transformer from the European Union? 25% of the customs value, all layers included.
What is the HTS code for transformer? 8504.21.00.
How much is the import tax from the European Union to the USA on transformer? The table above shows every duty that applies and the heading each one comes from.
Who pays it? The importer of record pays the duty to CBP at entry, not the seller abroad.

What each of these duties is

Normal duty (MFN, column 1-General)

The normal duty is the column 1-General rate the Harmonized Tariff Schedule sets for this code. Every country the United States trades with normally pays it unless a trade agreement or a preference programme says otherwise.

Section 232 (steel / aluminium / copper)

Section 232 covers steel, aluminium and copper on national-security grounds. It applies to the metal content and is charged whatever the origin is.

Exempt from the reciprocal tariff

This code is listed as exempt from the reciprocal tariff, so that layer adds nothing here.

What the code rests on

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: > Liquid dielectric transformers: > Having a power handling capacity not exceeding 650 kVA

Sources

Other origins

This page is information, not legal or customs advice. The final classification and the duty owed are decided by U.S. Customs and Border Protection at entry. All products · Classify a whole list (free during beta)