Auto Parts from Mexico: 0% US Tariff (2026)
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What's your Mexico tariff refund score?
The Supreme Court struck down the 2025 IEEPA tariffs and a $166B refund pool is open. See your personalized refund opportunity & filing roadmap.
Illustrative analysis only — not legal, tax, or customs advice. Eligibility and amounts are determined by CBP; filing is handled by licensed professionals.
IEEPA refunds — illustrative, not a personal claim
Paid IEEPA duty on imports of Auto Parts from Mexico in 2025–early 2026?
The Supreme Court struck down IEEPA reciprocal (and fentanyl/trafficking) tariffs on February 20, 2026. The Importer of Record — or the licensed broker who filed the original entries — can seek that IEEPA layer back through CBP’s CAPE process. This is not a consumer check, and it is not a guaranteed amount.
- Who can file: the original Importer of Record (or that entry’s filing broker), not the retail customer.
- Window: IEEPA duties collected from early 2025 through February 24, 2026 (reciprocal rates generally from April 2025; China/Canada/Mexico fentanyl layers started earlier).
- Not refundable: Section 232 (steel/aluminum/autos), China Section 301, MFN base duty, or the current Section 301 forced-labor tariff / EU 15% deal rate.
Illustrative example only: $50,000 of IEEPA-period imports of Auto Parts from Mexico at the published 10% IEEPA rate carried about $5,000 of IEEPA duty. That IEEPA layer — plus statutory interest (6–7% compounded daily under 19 CFR 24.36) — is what CAPE can refund. Your actual figure comes from your 7501s, not this example.
Have not filed
Only the Importer of Record can claim the IEEPA layer through CAPE.
How to claim an IEEPA refundAlready filed
Status is in ACE (REV-615), not a shopping-site tracker.
Check CAPE status · When money arrivesOverview on the tariff-refunds hub. Phase 3 for finally liquidated entries launches October 6, 2026 for CIT plaintiffs only. Illustrative analysis — not a guaranteed amount.
Contingency filing via Tariff Recovery Today (powered by Irongate), in partnership with Master Plan. No recovery, no fee. Not legal advice.
Mexico is the largest source of auto parts imports to the United States, and qualifying goods enter at 0% duty under USMCA. This makes Mexico the most tariff-advantaged source for automotive components.
USMCA qualification for auto parts requires 75% regional value content (North American content from US, Mexico, or Canada). Additionally, 70% of steel and aluminum used must originate in North America, and 40-45% of auto content must be made by workers earning at least $16/hour (the labor value content requirement).
Parts that fail to meet USMCA rules of origin face the 25% Section 232 auto tariff. This is a significant penalty — the difference between 0% and 25% on a typical auto parts order worth $500,000 is $125,000 in duties.
Mexico's auto parts industry is deeply integrated with US automakers. Major US, Japanese, and German manufacturers operate extensive parts production in Mexico. Key exports include engines and engine parts, wiring harnesses, transmissions, body stampings, brake systems, and electronic control units. Mexico exported approximately $115 billion in auto parts to the US in 2025.
The anti-stacking rule is important: goods subject to the Section 232 automobile tariff are NOT also subject to the base surcharge (the Section 301 forced-labor tariff that replaced Section 122 on July 24, 2026). This means non-qualifying auto parts pay 25% Section 232 only (not 25% + 10% = 35%).
For importers sourcing auto parts from Mexico, USMCA compliance documentation is critical. Maintain certificates of origin, bills of materials, and production records. CBP audits of automotive USMCA claims have increased significantly since 2024.
At the July 1, 2026 joint review, the US declined to renew USMCA in its current form. The agreement remains fully in force and USMCA 0% preferential treatment is unchanged — non-renewal triggers annual reviews for up to 10 years, with the agreement expiring July 1, 2036 only if no extension is ever agreed. Automotive rules of origin, particularly for EV components and batteries, are expected to be a focus of those annual reviews.
Auto Parts Tariffs by Country: Where It’s Cheapest to Import in 2026
Mexico ranks #1 of 12 major auto parts sources by effective US tariff. Cheapest first — click any country for its full breakdown.
| Source country | 2026 rate | vs. Mexico |
|---|---|---|
| Mexico (this page) | 0% | — |
| Japan | 12.5% | +12.5 pts |
| France | 15% | +15 pts |
| Germany | 15% | +15 pts |
| Italy | 15% | +15 pts |
| Spain | 15% | +15 pts |
| South Korea | 25% | +25 pts |
| United Kingdom | 27.5% | +27.5 pts |
| India | 28.4% | +28.4 pts |
| Thailand | 28.4% | +28.4 pts |
| Canada | 50% | +50 pts |
| China | 52.5% | +52.5 pts |
Effective 2026 rates for typical goods in this category (MFN base + the Section 301 forced-labor tariff that replaced Section 122 on July 24, 2026, plus Section 301/232 where they apply). Your exact duty depends on the specific HTS code — Mexico is currently the lowest-tariff major source at 0%. Tariffs are one input; weigh freight, lead time, and quality too.
Calculate Your Auto Parts Duty from Mexico
Search by product name or HTS code — the same lookup as the HTS code finder, then we stack 2026 country layers. Prefer a category estimate? .
Frequently Asked Questions
Are auto parts from Mexico duty-free?
What is the Section 232 auto tariff for Mexico?
What auto parts does Mexico export to the US?
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