Importing from Mexico: USMCA Tariffs, Duty Rates, and Total Import Cost

What Tariffs Do U.S. Importers Pay on Mexican Goods?

For goods qualifying under USMCA (the United States-Mexico-Canada Agreement), the answer is often zero: no MFN duty, no Section 122 surcharge, and no Merchandise Processing Fee. For goods that do not qualify under USMCA, the story changes: MFN base rates plus the 10% Section 122 surcharge apply, same as any other country. Steel and aluminum from Mexico face 50% Section 232 tariffs regardless of USMCA status. Nearly 85% of imports from Mexico claimed USMCA exemption as of January 2026.

Is Mexico the Lowest-Cost Sourcing Option for U.S. Importers?

For products that qualify under USMCA rules of origin, Mexico offers the lowest tariff burden of any U.S. trading partner: potentially 0% total duty with MPF exemption. This is lower than Vietnam (10%+ Section 122), Japan (10%+ Section 122), or China (35%+ with Section 301). The key question is whether your product qualifies. USMCA qualification requires meeting specific rules of origin, including regional value content thresholds and tariff shift requirements.

Mexico is the largest U.S. trading partner. USMCA-qualifying goods from Mexico enter the United States at preferential rates that no other country can match: zero duty, zero Section 122 surcharge, zero MPF. This combination makes Mexico the most tariff-advantaged sourcing option available, but only for products that actually qualify.

The catch: USMCA qualification is not automatic. Products must meet specific rules of origin that vary by product category, and the rules for automotive products, textiles, and chemicals are particularly complex. This guide covers the full tariff landscape for Mexican imports, the USMCA qualification requirements, and what happens when products do not qualify.

Last updated: March 2026

USMCA Qualification: The Key to Duty-Free Access

USMCA (which replaced NAFTA on July 1, 2020) eliminates or reduces tariffs on goods that meet its rules of origin. For most product categories, qualifying goods enter duty-free.

Three requirements for USMCA qualification:

1. Origin determination. The product must "originate" in the USMCA territory (U.S., Mexico, or Canada). This generally means the product is either:

Wholly obtained or produced in the territory (e.g., agricultural goods grown in Mexico), or
Meets a product-specific rule of origin (tariff shift, regional value content, or both)

2. Regional Value Content (RVC). Many products must meet minimum RVC thresholds, calculated as either:

Transaction value method: RVC = ((Transaction Value - Non-Originating Materials) / Transaction Value) x 100. Threshold typically 60-75%.
Net cost method: RVC = ((Net Cost - Non-Originating Materials) / Net Cost) x 100. Threshold typically 50-60%.

3. Certificate of Origin. The importer or exporter must certify origin. Under USMCA, certification can be done by the importer, exporter, or producer (unlike NAFTA, which required a specific form). The certification must include minimum data elements specified in USMCA Article 5.2.

For a deeper look at USMCA rules of origin, see our USMCA Rules of Origin guide.

What Happens When Goods Do Not Qualify for USMCA?

Products from Mexico that do not meet USMCA rules of origin receive no preferential treatment. They are treated like imports from any other MFN country:

Tariff Layer	USMCA-Qualifying	Non-Qualifying
MFN base duty	0% (most products)	Standard MFN rate
Section 122	Exempt	10%
Section 301	N/A (not China)	N/A
MPF	Exempt	0.3464% (min $33.58, max $651.50)
HMF	Standard (ocean only)	Standard (ocean only)
Typical total (non-metal)	0%	MFN + 10% + fees

The difference is dramatic. A product qualifying under USMCA enters at 0% total. The same product not qualifying faces MFN + 10% Section 122 + MPF, potentially 15-25% or more depending on the MFN rate.

Common reasons products fail USMCA qualification:

Non-originating materials exceed the RVC threshold (too many components from outside North America)
The product does not undergo a sufficient tariff shift (e.g., Chinese components are assembled in Mexico without enough transformation)
The required certificate of origin is missing or incomplete
For automotive: labor value content (LVC) requirements are not met (USMCA requires 40-45% of auto content to be produced by workers earning at least $16/hour)

How Tariff Layers Stack on Mexican Imports

Product Category	USMCA Qualifying	Non-USMCA	Sec 232
Manufactured goods (most)	0%	MFN + 10% Sec 122	N/A
Automotive (qualifying)	0% (with LVC)	2.5% MFN + 10% Sec 122	25% if not qualifying
Steel articles	N/A (Sec 232 overrides)	N/A	50%
Aluminum articles	N/A (Sec 232 overrides)	N/A	50%
Copper products	N/A (Sec 232 overrides)	N/A	50%
Agricultural products	0% (most)	MFN (varies) + 10% Sec 122	N/A
Textiles/apparel (qualifying)	0%	MFN (10-32%) + 10% Sec 122	N/A

Key points:

USMCA exemption is broad. Nearly 85% of imports from Canada and Mexico claimed USMCA exemption as of January 2026, producing effective tariff rates below 5%.
Section 232 ignores USMCA. Steel, aluminum, and copper from Mexico face the full 50% Section 232 tariff. USMCA does not provide an exemption from Section 232. Automotive products face 25% Section 232 tariffs on non-qualifying vehicles.
Section 301 does not apply. Mexico has no Section 301 tariff exposure. Section 301 tariffs currently apply only to China.
No Section 122 for USMCA goods. The Section 122 proclamation explicitly exempts USMCA-qualifying goods from Canada and Mexico, making USMCA qualification more valuable than ever.

Worked Example: Auto Parts from Mexico

Product: Automotive brake components (HTS 8708.30) Customs value: $150,000 Country of origin: Mexico

Scenario A: USMCA-qualifying (meets RVC and LVC requirements)

Layer	Rate	Amount
MFN duty	0% (USMCA)	$0
Section 122	Exempt (USMCA)	$0
MPF	Exempt (USMCA)	$0
HMF	0.125% (ocean)	$187.50
Total		$187.50

Effective rate: 0.13%

Scenario B: Non-qualifying (Chinese components, insufficient RVC)

Layer	Rate	Amount
MFN duty	2.5%	$3,750
Section 232 (auto parts)	12.5% (to reach 15% total)	$18,750
Section 122	Exempt (Sec 232 product)	$0
MPF	0.3464%	$519.60
HMF	0.125%	$187.50
Total		$23,207.10

Effective rate: 15.47%

The difference is $23,019.60 on a single $150,000 shipment. USMCA qualification is not a nice-to-have; it is a $23,000 decision.

Scenario C: Same product from China (Section 301 List 3)

Layer	Rate	Amount
MFN duty	2.5%	$3,750
Section 301 (List 3)	25%	$37,500
Section 122	10%	$15,000
MPF	0.3464%	$519.60
HMF	0.125%	$187.50
Total		$56,957.10

Effective rate: 37.97%

Qualifying Mexico sourcing saves $56,769.60 versus China on a $150,000 shipment. Even non-qualifying Mexico sourcing saves $33,750 versus China (the Section 301 difference).

GingerControl's Tariff Calculator runs these comparisons automatically: enter your HTS code and see Mexico (USMCA), Mexico (non-qualifying), China, Vietnam, or any other origin side by side with every tariff layer broken out.

Section 232 on Mexican Steel and Aluminum

Despite USMCA, Mexican steel and aluminum face the full 50% Section 232 tariff. This has been a point of contention:

The original 2018 Section 232 tariffs temporarily exempted Mexico, but that exemption was later replaced by a quota system, and ultimately the full tariff was applied
The 2025 increase from 25% to 50% applies equally to Mexico
Canada faces the same 50% rate and has imposed retaliatory tariffs on U.S. steel and aluminum

For importers sourcing steel or aluminum products, Mexico offers no tariff advantage over other countries (except Australia, which has a full Section 232 exemption, and the UK, which negotiated a 25% rate).

USMCA Review: July 1, 2026

USMCA includes a mandatory joint review in its sixth year. The review is scheduled for July 1, 2026. While most stakeholders expect the agreement to be renewed, the review creates an opportunity for modifications. The Trump administration has indicated it is in a strong negotiating position and changes are anticipated.

For importers, the practical implication is that USMCA qualification criteria could change. The automotive LVC requirements, textile yarn-forward rules, and RVC thresholds are all potentially subject to renegotiation. Monitor USTR announcements for any proposed modifications.

GingerControl is a trade compliance AI platform that helps importers, exporters, and customs brokers classify products, simulate tariff costs, and track policy changes. The Tariff Calculator covers USMCA preferential rates alongside the full tariff stack for 200+ countries, so you can model the cost impact of USMCA qualification versus standard MFN treatment.

FAQ

Do all goods from Mexico enter the U.S. duty-free?

No. Only goods that qualify under USMCA rules of origin enter duty-free. Products that do not meet the rules of origin requirements are treated as standard MFN imports and face base duty rates plus the 10% Section 122 surcharge. Approximately 85% of imports from Mexico currently claim USMCA treatment.

Does USMCA protect against Section 232 tariffs?

No. Section 232 tariffs on steel (50%), aluminum (50%), copper (50%), and automobiles (25%) apply to Mexican goods regardless of USMCA qualification. USMCA does exempt qualifying goods from Section 122, but not from Section 232.

What are the USMCA rules of origin for automotive products?

USMCA automotive rules are among the most complex trade provisions in any agreement. Key requirements include: 75% regional value content for passenger vehicles (up from 62.5% under NAFTA), 40-45% labor value content (work performed at $16+/hour), and specific rules for core parts (engines, transmissions, body/chassis). Non-qualifying vehicles face a 25% Section 232 tariff.

How do I know if my product qualifies under USMCA?

Check the product-specific rule of origin for your HTS code in USMCA Annex 4-B (Rules of Origin). Calculate whether your product meets the applicable tariff shift rule and/or regional value content threshold. Your customs broker can assist with the determination and ensure the certificate of origin is properly completed.

Is nearshoring to Mexico a good strategy to avoid tariffs?

It depends on your product's USMCA qualification. If you can manufacture or substantially transform goods in Mexico using sufficient North American content, USMCA provides the best tariff treatment available: 0% duty, 0% Section 122, 0% MPF. If you simply assemble Chinese components in Mexico without sufficient transformation, the goods will not qualify for USMCA, and you may also face transshipment scrutiny from CBP.

What happens to Mexican import tariffs after the USMCA review?

The USMCA joint review is scheduled for July 1, 2026. Most stakeholders expect renewal, but modifications are possible. Until the review is complete, current USMCA provisions remain in effect. Even if modifications are made, they would likely take effect on a future date with transition periods.

Mexico offers the best tariff treatment available to any U.S. trading partner for qualifying goods. Zero duty, zero Section 122, zero MPF. But qualification is not automatic, and the math changes entirely for non-qualifying products. The decision to source from Mexico should start with a USMCA qualification analysis for your specific HTS codes.

GingerControl's Tariff Calculator shows you the full tariff stack for Mexico (USMCA-qualifying and non-qualifying) alongside 200+ other countries. Try it free →

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References

[REF 1] Penn Wharton Budget Model -- Effective Tariff Rates (March 16, 2026) Data cited: Canada/Mexico USMCA utilization rate (85%), effective tariff rates below 5% Source: Effective Tariff Rates Published: March 16, 2026

[REF 2] Covington & Burling -- IEEPA Tariffs Terminated Data cited: Section 122 USMCA exemption, Section 232 products exempt from Section 122 Source: IEEPA Terminated

[REF 3] Congressional Research Service -- Expanded Section 232 Tariffs Data cited: Mexico 50% steel/aluminum rate, no country exemption, derivative expansion Source: IN12519

[REF 4] Tax Foundation -- Tariff Tracker Data cited: Section 122 timeline, USMCA exemption from Section 122 Source: Tariff Tracker

[REF 5] Baker McKenzie -- US Supreme Court Ruling and Trade Enforcement Strategy Data cited: USMCA July 1, 2026 review deadline, renewal expectations, negotiating position Source: Trade Enforcement Strategy

[REF 6] Global Trade Alert -- Section 122 in Effect Data cited: USMCA goods exempt from Section 122, CAFTA-DR textile exemptions Source: S122 Tariff Estimates