China to Mexico Manufacturing Duty Calculator

Cross-reference: run these numbers alongside our China to US Electronics, China to US Machinery, China to US Plastics, China to US Furniture, and China to US Clothing calculators to build a complete nearshoring cost model.

When IMMEX Doesn't Apply — Domestic Market Imports

If Chinese goods are destined for the Mexican domestic market (not re-export), IMMEX is irrelevant — you pay the full 15% duty and 16% IVA at the border. This is increasingly common as Chinese consumer brands expand directly into the Mexican market: electronics, home appliances, automotive parts, textiles, and e-commerce parcels. The MXN $50 de minimis means essentially every commercial shipment triggers the full tax treatment. There is no low-value escape hatch.

Domestic-market importers also face a structural disadvantage: the IVA is paid at the border and recovered months later through the monthly IVA return. Cash-flow impact on a MXN 500,000 shipment: you front roughly MXN 192,000 in duties and IVA, then recover the IVA portion (MXN 105,800) over the next 30–60 days through your Mexican tax filings. For high-volume importers, this working-capital drag is significant. IMMEX operators avoid this entirely since the IVA is never paid in the first place.

There's also the matter of PROSEC (Programas de Promoción Sectorial). PROSEC is a separate program from IMMEX — it allows reduced-duty imports of inputs used in specific priority sectors, even when the finished goods are sold domestically. If your Chinese components feed into one of Mexico's priority sectors (automotive, electronics, aerospace, medical devices), you may qualify for PROSEC rates that are lower than the standard MFN rate. But PROSEC is not zero-rate like IMMEX; it typically reduces duties to 0%–5% on qualifying inputs. The program is industry-specific and requires pre-approval from the Secretaría de Economía.

See also: De Minimis Value Guide for threshold comparisons across all corridors.

SAT and the IVA Mechanism — Tax on Tax

Mexico's SAT (Servicio de Administración Tributaria) administers the 16% IVA on imports. The IVA is calculated on CIF plus customs duty — a tax-on-tax structure. For a shipment with MXN 115,000 CIF and 15% duty (MXN 17,250): IVA = 16% × MXN 132,250 = MXN 21,160. Total tax: MXN 38,410, or an effective 33.4% on the CIF value. This tax-on-tax math is the single most important number to model before committing to a China-to-Mexico domestic-market supply line.

For IMMEX operations, the IVA is deferred through the certificación IVA mechanism and offset through the monthly IVA return. Net cash-flow impact: zero for compliant operators. But the certification process requires a clean SAT filing history and can take months to secure for new IMMEX registrants. Plan for the gap.

One nuance that trips up first-time importers: the IVA paid at the border is not a final cost for most businesses. Mexican tax law treats the import IVA as a creditable input tax — you recover it against IVA collected on your domestic sales. But the timing mismatch is real. You pay IVA at the border on the day of import; you recover it when you file your monthly IVA return, typically 30–60 days later. On a MXN 1,000,000 CIF shipment with 15% duty, the IVA alone is MXN 184,000. That's a working-capital float of nearly USD $10,000 per container, tied up for up to two months. For businesses running on thin margins, that cash-flow gap matters. IMMEX eliminates it entirely.

MXN $50 De Minimis — The Lowest in the Western Hemisphere

Mexico's de minimis is MXN $50 — roughly USD $2.50–$3.00 depending on the exchange rate. It's the lowest of any major Western economy. For all practical purposes, every commercial shipment from China to Mexico goes through full customs formalities: formal pedimento, broker filing, duties and IVA assessed from peso one.

This stands in stark contrast to the US ($800 de minimis under Section 321) and even the EU (€150 for duty). The low de minimis is a deliberate policy choice by Mexican authorities — they want no low-value parcel channel from China undermining the domestic retail market or circumventing the IVA. If you sell directly to Mexican consumers from a Chinese warehouse, every single package gets the full treatment. There is no "Section 321 equivalent" in Mexico.

The near-zero de minimis also means that Mexican customs brokers have a near-universal role in the import process. Unlike the US, where a Section 321 Type 86 entry can be filed electronically without a broker, every Mexican import entry requires a licensed agente aduanal. This makes the broker relationship one of the most important operational decisions for any China-to-Mexico importer.

A good broker catches HS code issues before they become audit problems, advises on IMMEX vs PROSEC eligibility per shipment, and knows which ports have lower red-light inspection rates. A bad broker costs you in delays, penalties, and missed IMMEX benefits. Interview brokers. Check their SAT standing. Ask about their experience with Chinese-origin goods specifically — a broker who primarily handles US-to-Mexico imports may not know the TIGIE nuances that affect Chinese goods, or the elevated rates Mexico has imposed on specific Chinese HS lines since 2024.

The MXN $50 threshold applies to postal shipments and courier entries (mensajería). For commercial freight (carga), there is effectively no de minimis at all — every shipment requires a formal pedimento regardless of value. This means even a samples shipment or a single prototype unit sent via DHL or FedEx from Shenzhen to a Mexican factory triggers the full customs process. Budget MXN 1,500–3,500 in broker fees per entry, plus the duties and IVA, even on shipments with negligible commercial value. The compliance overhead is the real cost driver on small shipments, not the duties themselves.

Key HS Chapters for China-to-Mexico Manufacturing

• Chapter 84: Machinery and mechanical appliances — industrial equipment, pumps, engines, and automation components. The backbone of Chinese inputs into Mexican maquiladoras. Most Chapter 84 items qualify for IMMEX without issue, but verify your specific 8-digit fracción arancelaria against the IMMEX-eligible list published by the Secretaría de Economía.
• Chapter 85: Electrical machinery — motors, circuit boards, wiring harnesses, and electronic components. Heavy traffic on this corridor. Circuit boards and sub-assemblies are particularly active; the line between a "component" (IMMEX-eligible) and a "finished good" (may need additional authorization) is where customs brokers earn their fees.
• Chapter 39: Plastics and plastic articles — raw resins, molded components, and packaging materials. Watch for anti-dumping duties on specific Chinese plastic products; Mexico has opened several AD investigations on Chinese polymer goods since 2024.
• Chapter 73: Iron and steel articles — fasteners, fittings, and structural components for automotive and appliance manufacturing. This chapter has seen the most aggressive tariff increases in 2026, with some steel products now at 25%–35%. Verify your specific HS code before relying on the 15% average.
• Chapter 87: Automotive parts — increasingly important as Chinese auto parts suppliers feed Mexican assembly plants. IMMEX is crucial for this category. USMCA automotive rules of origin (75% regional value content) add another layer: Chinese inputs must be "substantially transformed" in Mexico for the finished vehicle to qualify for USMCA duty-free entry to the US.
• Chapter 94: Furniture and bedding — flat-pack furniture components, mattress materials, and seating parts. Mexico's furniture manufacturing sector imports significant volumes of Chinese components for assembly and domestic sale. IMMEX applies if the finished furniture is exported; otherwise full duty and IVA.
• Chapter 61 & 62: Apparel and clothing accessories — Chinese textile inputs cut-and-sewn in Mexican maquiladoras for export to the US. The textile sector is under heightened scrutiny from both Mexican SAT and US CBP for transshipment concerns. Chain-of-custody documentation is essential.

Nearshoring Math — China → Mexico → US vs China → US Direct

The comparison that matters: Chinese components → Mexican maquiladora → US finished goods (under USMCA at 0% duty) vs Chinese finished goods → US directly (MFN + Section 301). The Mexico route adds logistics complexity and MXN-level broker and customs costs, but saves the Section 301 hit on the US-leg import.

On the Mexico leg, IMMEX eliminates the 15% duty and defers the 16% IVA. On the US leg, USMCA eliminates the US duty if the finished good meets origin rules — and the maquiladora's value-add (assembly labor, Mexican-sourced components) counts toward the regional value content threshold. Total tariff cost through the Mexico route: effectively zero, plus broker fees on both sides.

Total tariff through the China-direct route: MFN base rate (anywhere from 0% for electronics to 16.5% for apparel) plus Section 301 surcharge (7.5%–25% depending on the list). For goods on Section 301 Lists 1 or 2 (25%), the Mexico route can save 25+ percentage points on tariffs. That differential, multiplied across container volumes, is the economic engine driving the nearshoring boom. For List 3 and 4A goods (7.5%), the savings are smaller and the added logistics complexity may not justify the switch.

Run both sides: use this calculator to model the Mexico-leg landed cost, then use our China-to-US calculators to model the direct route. Compare. The spreadsheet doesn't lie.

One more thing worth modelling: the fixed costs. A Mexican maquiladora operation carries overhead that a direct-from-China e-commerce model doesn't: IMMEX compliance staff, SAT filing costs, Anexo 24 system maintenance, bonding premiums, and the broker relationship. These fixed costs run roughly MXN 25,000–80,000 per month for a small-to-midsize operation. If you're running 20 containers a month, the per-unit burden is negligible. If you're running 2 containers a month, the fixed-cost overhead can eat most of the tariff savings. The breakeven volume varies by product category and Section 301 exposure, but as a rough heuristic: below 5–10 containers per month, the Mexico route is harder to justify on pure cost grounds. Above that threshold, the tariff arbitrage wins cleanly.

Also worth noting: the USMCA itself is up for review in 2026. The agreement includes a 16-year sunset clause with a mandatory joint review. While full termination is unlikely, the review process creates uncertainty about whether the 0% USMCA rate on Mexico-origin goods survives unchanged. Importers with multi-year supply contracts should model a worst-case scenario where the US-leg duty reverts to MFN. Even with US MFN rates on the US leg, the Mexico route often still beats China-direct when Section 301 is factored in. But the margin narrows, and the fixed costs of the maquiladora operation become a larger share of the total. Build the sensitivity analysis into your model.

Practical Clearance Steps at Mexican Customs

Chinese goods entering Mexico require a pedimento de importación (import declaration) filed by a licensed Mexican customs broker (agente aduanal). You cannot self-file. The pedimento is an electronic document submitted through the SAT's Ventanilla Digital (Digital Window) platform. Required supporting documents: a commercial invoice in Spanish or with a certified Spanish translation, a bill of lading or airway bill, a certificate of origin (if claiming any preferential rate — though China-Mexico has no FTA so this is rarely relevant), and for IMMEX shipments, the IMMEX registration number plus the guarantee bond documentation.

Mexico uses a semáforo fiscal (fiscal traffic light) system at customs. When the pedimento is filed, the SAT system randomly assigns a green light (release without inspection) or red light (physical inspection). The red-light rate varies by port and commodity but averages around 10%–15% of entries. A red light means your container gets pulled for physical examination — at your cost. Budget MXN 3,000–8,000 for a red-light inspection, depending on the port and the extent of the exam. The inspection itself doesn't mean anything is wrong; it's random. But delays from a red light can add 3–7 days to clearance.

For the actual numbers: budget MXN 1,500–3,500 in standard brokerage fees per entry, MXN 300–800 for the pedimento filing fee (DTA — Derecho de Trámite Aduanero), and if you get a red light, another MXN 3,000–8,000 for the physical inspection. These are all separate from the duties and IVA. On a MXN 100,000 shipment, the fees alone add 2%–12% to your landed cost before duties and taxes even enter the picture. On a MXN 1,000,000 shipment, the fee burden drops to well under 1% — customs costs are highly regressive (cheaper per unit at higher values).

A quick note on ports: Mexico's busiest container ports for Chinese imports are Manzanillo (Pacific coast, handles roughly 40% of Mexico's container traffic), Lázaro Cárdenas (also Pacific, deeper berths for larger vessels), and Veracruz (Gulf coast, feeds into central and southern Mexico). Manzanillo is the default for Shenzhen/Shanghai/Ningbo departures — transit time is 18–25 days depending on routing. Lázaro Cárdenas is faster for direct sailings but has fewer weekly services. If your maquiladora is in Monterrey or northern border states, factor in the inland drayage from port to factory: 2–4 days from Manzanillo to Monterrey by rail or truck, adding MXN 8,000–15,000 per container. Port choice affects both the base freight cost and the inland logistics, and those numbers matter just as much as the duty calculation.

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Frequently Asked Questions

What's the duty rate for Chinese goods entering Mexico?

15% average MFN rate for industrial goods. But Mexico has been raising tariffs on specific Chinese-origin categories since 2024 — some steel and textile lines now face 25%–35%. Under IMMEX, duty is deferred to zero for goods that are re-exported. For domestic market sales, the full duty plus 16% IVA applies. Always verify your specific fracción arancelaria against the current TIGIE schedule before quoting a landed cost.

How does IMMEX work for Chinese components?

IMMEX-registered Mexican manufacturers can temporarily import Chinese components duty-free and IVA-deferred. The goods must be exported (typically to the US) within 12–18 months. Anexo 24 electronic inventory tracking ties every imported input to a specific export shipment. Bonding requirements apply, and SAT can audit going back five years. If goods end up in the Mexican domestic market, all deferred duties and taxes come due retroactively plus penalties.

Is Mexico's de minimis really MXN $50?

Yes — roughly USD $2.50–3.00. It is one of the lowest in the world. Every commercial shipment from China triggers full customs formalities including formal pedimento, broker filing, and duties and IVA from peso one. There is no low-value parcel channel comparable to US Section 321 or the EU €150 threshold.

Should I ship from China direct to the US, or through a Mexican maquiladora?

Run the total landed cost comparison. China direct: pay MFN base rate + Section 301 (if applicable) + US brokerage and fees. Mexico route: pay Mexican broker fees + zero duty under IMMEX + zero US duty under USMCA (if origin rules are met). For Section 301 List 1 and 2 goods at 25%, the Mexico route usually wins decisively. For List 3 and 4A goods at 7.5%, the savings are smaller and the added logistics complexity and working-capital requirements may not justify the switch. Model both routes with real numbers before committing.

What is PROSEC and how is it different from IMMEX?

PROSEC (Programas de Promoción Sectorial) is a separate program that allows reduced-duty imports of inputs used in specific priority sectors, even when finished goods are sold domestically. Unlike IMMEX (which defers duty to zero for re-export), PROSEC reduces MFN rates to 0%–5% on qualifying inputs regardless of where the finished good ends up. Key PROSEC sectors include automotive, electronics, aerospace, medical devices, and machinery. PROSEC and IMMEX are not mutually exclusive — a manufacturer can hold both registrations and use whichever is more advantageous per shipment.

How long does IMMEX registration take?

Plan for 6–12 months for a new IMMEX registration, assuming you have a Mexican legal entity, a clean SAT filing history (opinion positiva del cumplimiento de obligaciones fiscales), and a compliant inventory-tracking system ready for Anexo 24. The shelter-company route (IMMEX-Albergue) bypasses the registration timeline entirely — you operate under the shelter's existing IMMEX registration and pay a per-unit or per-employee fee. For time-sensitive nearshoring projects, the shelter model is the practical path.

How does the USMCA review in 2026 affect China-to-Mexico nearshoring?

The USMCA includes a mandatory joint review in 2026, its sixth year. The review doesn't automatically change anything — all three parties (US, Mexico, Canada) must agree to modifications. But the process creates uncertainty. If USMCA origin rules tighten or the 0% duty rate on qualifying goods changes, the China-to-Mexico-to-US nearshoring math shifts. Importers with multi-year supply commitments should model the impact of a reversion to US MFN rates on the US-leg import. Even under that worst case, the Mexico route typically still beats China-direct when Section 301 tariffs are at 25%. But the savings shrink, and the maquiladora fixed-cost burden becomes a larger share of total landed cost. Build the sensitivity into your model, and watch the USTR Federal Register notices for the USMCA review schedule.

What currency should I use for the customs declaration?

Mexican customs requires the commercial invoice to state values in the currency of the transaction, but the pedimento itself converts everything to MXN at the SAT-published exchange rate for the day of entry. The SAT publishes a daily exchange rate (tipo de cambio FIX) based on Banco de México's fixing. If your Chinese supplier invoices in USD (common), your broker converts the USD invoice value to MXN at the SAT daily rate. If the supplier invoices in RMB, the broker first converts RMB to USD (using the day's cross-rate) then USD to MXN. Each conversion step introduces small rounding differences. For cost modelling, use MXN throughout and update your exchange rate to the latest SAT fixing — a 2% MXN depreciation between quote and entry adds 2% to your duty and IVA bill in peso terms.

Are there additional taxes beyond duty and IVA?

For most Chinese industrial goods, duty (IGI — Impuesto General de Importación) and IVA are the only two border taxes. However, certain categories attract additional charges: alcoholic beverages, tobacco, and fuel products carry IEPS (Impuesto Especial sobre Producción y Servicios); new vehicles and certain luxury goods may attract ISAN (Impuesto sobre Automóviles Nuevos). For the manufacturing categories covered by this calculator (Chapters 39, 73, 84, 85, 87, 94), IGI and IVA are the only relevant charges. But always check whether your specific HS code carries an anti-dumping or countervailing duty — Mexico has been increasingly active in AD/CVD investigations against Chinese products, and these duties stack on top of the standard MFN rate. They are not reflected in our 15% average and can double or triple the effective rate on targeted categories.

Related Duty Calculators

• China to US Electronics Duty Calculator — 2.5% base rate, Section 301 exclusions, Section 321 $800 de minimis
• China to US Machinery Duty Calculator — industrial equipment, automation components, and heavy machinery imports
• China to US Plastics Duty Calculator — raw resins, molded parts, plastic packaging from China
• China to US Furniture Duty Calculator — 8% composite rate, Section 301 exposure, antidumping risk
• China to US Clothing Duty Calculator — 16.5% average, fiber-content rules, Section 301 overlap
• De Minimis Value Guide — threshold comparison across US, EU, Mexico, Canada, UK, and Australia

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