TARIFF TRACKER
Bars stacking of certain auto, Canada, Mexico, steel and aluminum tariffs
This order creates a priority rule so certain auto, Canada, Mexico, steel and aluminum tariffs do not all stack on the same article. It applies retroactively to covered entries made on or after March 4, 2025, with refunds handled under CBP procedures.
Updated October 12, 2026
STATUS
In effect
·
EFFECTIVE
·
Other
COUNTRIES
All countries, Canada, Mexico
PRODUCT FAMILIES
Steel, Aluminum, Autos/parts
COVERED GOODS
Articles subject to tariffs under Proclamation 10908 on automobiles and automobile parts, Executive Orders 14193 and 14194 on Canada and Mexico border duties, and the Section 232 aluminum and steel proclamations listed in the order.
EXCLUSIONS
The order does not alter other duties, taxes, fees, or exactions, including Column 1 duties, Section 301 duties, Executive Order 14195 China synthetic opioid supply chain duties, and AD/CVD duties.
WHAT TO DO (OUR GUIDANCE, NOT LEGAL ADVICE)
Review entries made on or after March 4, 2025 that paid more than one listed tariff on the same article. Track CBP guidance and refund procedures for entries affected by the non-stacking rules.
SOURCES
Executive Order 14289, 90 FR 18907 (May 2, 2025)
U.S. Customs and Border Protection notice, 90 FR 21487 (May 20, 2025)
CSMS # 65475725 - GUIDANCE: United States of America and the United Kingdom of Great Britain and Northern Ireland Economic Prosperity Deal (June 27, 2025)
CSMS # 66242844 - Updated Guidance - Implementation of the United States-Japan Agreement and Modification of Duties on Imports from Japan (September 15, 2025)
CSMS # 66336270 - Guidance - Implementation of Tariff-Related Elements of the United States-European Union Framework Agreement (September 24, 2025)
CSMS # 66665333 - GUIDANCE: Import Duties on Medium- and Heavy-duty Trucks, Medium- and Heavy-duty Truck Parts and Buses (October 29, 2025)
CSMS # 66987366 - Guidance - Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal (December 3, 2025)
QUOTES FROM THE SOURCE
Rate: "the duty rates provided by these actions shall not be cumulative when the conditions outlined in subsection (a) of this section are met." (source)
Effective date: "This order shall apply retroactively to all entries of merchandise subject to any applicable tariffs outlined in section 2 of this order and made on or after March 4, 2025." (source)
Signed: "Executive Order 14289 of April 29, 2025 Addressing Certain Tariffs on Imported Articles" (source)
Covered goods: "Proclamation 10908 of March 26, 2025 (Adjusting Imports of Automobiles and Automobile Parts Into the United States);" (source)
Covered goods: "Proclamation 9704 of March 8, 2018 (Adjusting Imports of Aluminum Into the United States), as amended by Proclamation 9980" (source)
Covered goods: "Proclamation 9705 of March 8, 2018 (Adjusting Imports of Steel Into the United States), as amended by Proclamation 9980" (source)
Exclusions: "Nothing in this order shall be interpreted to alter or limit the application of any duties, taxes, fees, or exactions other than those imposed pursuant to the actions listed in section 2 of this order." (source)
Status: "Each action listed in section 2 of this order remains independently valid and enforceable" (source)
Effective date: "The HTSUS is modified with respect to covered articles, as set out in the Annex to this document, at 12:01 a.m. eastern daylight time on May 16, 2025." (source)
Covered goods: "entries of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and entries of light trucks" (source)
Covered goods: "entries of parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and entries of parts of light trucks" (source)
Covered goods: "the additional duties imposed on entries of products of aluminum under heading 9903.85.02" (source)
Covered goods: "the additional duties imposed on entries of iron or steel products under headings 9903.81.87 and 9903.81.88" (source)
Countries: "the additional duties imposed on entries of articles the product of Canada under heading 9903.01.10" (source)
Countries: "the additional duties imposed on entries of articles the product of Mexico under heading 9903.01.01" (source)
Exclusions: "that article shall be subject to the appropriate action(s) as prioritized in the order established in section 3(a) of Executive Order 14289" (source)
USMCA: "Goods qualifying for preferential tariff treatment under the United States-Mexico-Canada Agreement (USMCA), will not be subject to additional tariffs on parts of passenger vehicles and light trucks" (source)
Status: "For covered articles that were entered for consumption, or withdrawn from warehouse for consumption, as specified in this Annex, and for which the accompanying duty payment included tariffs that would not be required under Executive Order 14289, importers may request a refund" (source)
Awaiting check
Needs review: the Canada and Mexico parts of this rule lapsed with the IEEPA duties (EO 14389). CBP still applies its rule that auto and truck parts duties take priority over metals duties (CSMS 69087399, CBP IEEPA FAQ), pending CBP's post-ruling stacking guidance. No rate is shown.
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