What is the US import duty for HTS 8421?

HTS 8421 (Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:) has a general (MFN) column rate of Free/—. No Chapter 99 overlays are currently linked to this line. Final duty is determined by CBP at entry.

Does Section 301 or IEEPA tariff apply to HTS 8421?

No Chapter 99 overlay is linked to this line in our current snapshot. That means no Section 301, IEEPA, or reciprocal additional duty is mechanically attached. Always double-check against the latest Federal Register for proclamations that may not yet be reflected in the HTS export.

How do I check if HTS 8421 qualifies for a Section 301 exclusion?

Most machinery (Chapter 84) and electronics (Chapter 85) lines from China are covered by Section 301 List 1–4 overlays. USTR publishes exclusions with specific product descriptions — matching by HTS code alone is not sufficient, the product must meet the exclusion description. Check USTR exclusion databases and the latest Federal Register notices.

How do I compare duty from different countries for HTS 8421?

Use the origin compare view to evaluate this HS code against alternative countries. The calculator applies each country-specific Chapter 99 overlay and the appropriate column rate.

Is this the binding duty determination?

No. This page is a reference built on USITC + Federal Register open data. The binding classification and duty amount is determined by CBP at entry. AD/CVD and product-specific exclusions require separate review.

HTS 8421 — Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:

Name: HTS 8421 — Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:
Creator: Duty
Published: 2026-04-24T06:26:45Z
License: https://www.usitc.gov/terms_use.htm

Base tariff columnsBase tariff columns

Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.

General (MFN)	Free
Special	—
Other (Column 2)	—

Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD and product-specific exclusions are not evaluated by default.

Chapter 99 overlaysChapter 99 overlays

No Chapter 99 overlays are currently linked to this HS code.

Sample duty by originSample duty by origin

Illustrative calculation at USD 10,000 customs value, standard (non-preferential) claim. Chapter 99 additional duties applied where status is active.

Origin	Base rate	Chapter 99	Total rate	Duty (USD)
China (CN)	0%	0%	0%	$0.00
Vietnam (VN)	0%	0%	0%	$0.00
Mexico (MX)	0%	0%	0%	$0.00
India (IN)	0%	0%	0%	$0.00
South Korea (KR)	0%	0%	0%	$0.00

§ RELATED ENTRIESAll subheadings under HTS 8421

Direct children of HTS heading 8421. Drill in to see actual column rates.

§ FAQFrequently asked questions

What is the US import duty for HTS 8421?: HTS 8421 (Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof:) has a general (MFN) column rate of Free/—. No Chapter 99 overlays are currently linked to this line. Final duty is determined by CBP at entry.
Does Section 301 or IEEPA tariff apply to HTS 8421?: No Chapter 99 overlay is linked to this line in our current snapshot. That means no Section 301, IEEPA, or reciprocal additional duty is mechanically attached. Always double-check against the latest Federal Register for proclamations that may not yet be reflected in the HTS export.
How do I check if HTS 8421 qualifies for a Section 301 exclusion?: Most machinery (Chapter 84) and electronics (Chapter 85) lines from China are covered by Section 301 List 1–4 overlays. USTR publishes exclusions with specific product descriptions — matching by HTS code alone is not sufficient, the product must meet the exclusion description. Check USTR exclusion databases and the latest Federal Register notices.
How do I compare duty from different countries for HTS 8421?: Use the origin compare view to evaluate this HS code against alternative countries. The calculator applies each country-specific Chapter 99 overlay and the appropriate column rate.
Is this the binding duty determination?: No. This page is a reference built on USITC + Federal Register open data. The binding classification and duty amount is determined by CBP at entry. AD/CVD and product-specific exclusions require separate review.