Mexico Import Duties and Taxes Explained

Shipping from China to Mexico means navigating a complex duty and tax landscape shaped by HS code classification, customs value calculation, and two main taxes: IGI (Impuesto General de Importación) and IVA (Impuesto al Valor Agregado). If you misjudge any of these, you risk shipment delays, surprise tax bills, or even customs holds. Mexico’s system is strict: registration, accurate documentation, and compliance certificates are non-negotiable, and the process differs sharply from what shippers may be used to elsewhere. This guide breaks down the Mexico-specific rules for IGI and IVA, how to estimate your landed cost, and the traps that trip up importers. You’ll find practical checklists, core formulas, and actionable steps for quoting and planning your next shipment. For a broader overview, see the full Mexico shipping guide.

HS codes: your key to Mexico’s IGI tariff rates (and customs risk)

Every Mexico import begins with the HS code. The code sets your IGI duty rate, determines if special permits are needed, and drives the compliance process. Customs will review your declaration for accuracy—mistakes can mean audits or costly reclassification.

What HS codes do in Mexico

The HS code (Harmonized System) is the foundation of Mexico’s tariff system. It determines:

• IGI duty rate (from 0% up to 35% depending on product)
• If your goods need NOM certification or sanitary permits
• Whether you qualify for special treatment under FTAs (like USMCA)
• If your shipment triggers extra documentation or inspection

We see electronics, textiles, and mixed-material goods routinely flagged for code mismatches. If your invoice description and HS code don’t align, ANAM (Agencia Nacional de Aduanas de México) may reclassify, increasing your IGI rate or causing a delay.

How to find the right HS code (Mexico approach)

Mexico’s customs expects a technical description: function, material, and intended use. Avoid vague terms like “accessory” or “gift.” Instead, specify:

• What does it do? (e.g., “LED lighting fixture”)
• What is it made of? (e.g., “plastic, aluminum housing”)
• Intended use? (e.g., “industrial, consumer, or medical”)

Consistency is critical: the HS code, invoice, packing list, and customs paperwork must all tell the same story. If the packing list says “metal part” but the HS code is for “plastic articles,” expect scrutiny.

Where to check Mexico’s IGI rates officially

Official IGI rates are published by SAT (Servicio de Administración Tributaria) and ANAM. Use their online tariff lookup tools to confirm the exact rate for your HS code. Rates range from 0% (for some FTA goods) up to 35% for others. For a step-by-step on mode selection, see our guide to choosing your shipping mode.

HS Code Example	Typical IGI Rate	Compliance Requirement
8528.72.00	15%	NOM certificate
6109.10.00	20%	Textile labeling NOM
9405.40.00	10%	None

Calculating customs value: CIF logic and Mexico’s official formula (what goes in the base)

Mexico calculates IGI and IVA based on the customs value—almost always the CIF (Cost, Insurance, Freight) value declared in your pedimento. Customs will scrutinize your declared value for accuracy.

What ‘customs value’ means in Mexico

The customs value is the base amount used to calculate IGI and IVA. It includes:

• Product cost (as shown on your invoice)
• Insurance (if paid)
• Freight (China to Mexico port/airport)

ANAM reviews your documents to ensure the declared value matches commercial reality. Undervaluing goods is a major red flag—customs may re-assess, apply penalties, or even seize cargo.

CIF-based valuation (Mexico version)

Mexico follows the WTO model: CIF is the standard. If your shipment terms are EXW or FCA, you must add insurance and freight costs to reach the CIF value. For more on Incoterms, see EXW vs FOB and FCA vs FOB.

How Mexico calculates IGI and IVA on imports (the core formulas)

Mexico’s import taxes are straightforward—if you know your HS code and customs value. The formulas are public, but getting the inputs right is what separates smooth clearance from costly delays.

IGI import duty calculation

IGI (Impuesto General de Importación) is Mexico’s main import duty. The rate depends on your HS code and whether your goods qualify for preferential treatment. For most goods from China, IGI ranges from 0% to 35%.

IVA calculation (Mexico’s VAT)

IVA (Impuesto al Valor Agregado) is Mexico’s VAT, charged on most imports. Standard rate is 16%, reduced to 8% in border regions.

Mexico duties & tax estimator

16% IVA (Impuesto al Valor Agregado)

CIF value (USD)

Duty rate (%)

Import duty$1,000.00

IVA (Impuesto al Valor Agregado) base$21,000.00

IVA (Impuesto al Valor Agregado) (16%)$3,360.00

Total duty + tax$4,360.00

Estimate only. Actual amounts depend on HS code, origin, and Mexico customs assessment.

Preferential rates under USMCA and other FTAs

Mexico grants preferential IGI rates (often 0%) for goods meeting USMCA or other FTA rules. However, Chinese-origin goods usually do not qualify unless substantially transformed in a USMCA country. Don’t assume zero IGI applies—check rules of origin carefully. For more, see our DAP vs DDP guide and DDP shipping tips.

Mexico’s customs clearance: electronic filing, timelines, and the Padrón de Importadores (what importers must know)

Mexico’s clearance process is digital, but not instant. Registration, electronic filing, and compliance checks all play a role. Advance preparation is essential.

ANAM’s electronic system (VUCEM and pedimento)

All imports are processed through the VUCEM platform. You must file an electronic pedimento (manifest) before cargo arrival. The system cross-checks your HS code, customs value, and compliance documents.

• Sea and air cargo require advance filing via VUCEM
• Data must match across all documents (invoice, packing list, certificates)

See our customs clearance guide for detailed steps.

Clearance timelines and inspection risks

Typical clearance for compliant shipments is 1-3 days. If documents are missing, inconsistent, or flagged for inspection, timelines can stretch to 7+ days. Inspections are common for electronics, textiles, and goods without proper certificates.

Clearance Scenario	Typical Timeline	Risk Factors
Compliant shipment	1-3 days	All docs accurate
Minor discrepancy	3-7 days	Doc mismatch, minor issue
Inspection triggered	7+ days	Missing cert, value issue

Padrón de Importadores registration requirements

All importers must be registered in the Padrón de Importadores. This registry is managed by SAT. Without it, your cargo cannot clear customs. Registration takes 2-4 weeks; customs brokers charge USD 200-500 for assistance.

Mexico-specific certifications and compliance: NOM, sanitary permits, and wood packaging (what can trigger holds)

Mexico is strict about compliance. Missing certificates or incorrect packaging are top reasons for shipment holds.

NOM certification for regulated products

NOM (Norma Oficial Mexicana) certification is required for many categories: electronics, textiles, toys, medical devices, and more. The certificate is issued by the Secretaría de Economía or authorized bodies (like NYCE). Typical timeline: 2-6 weeks, cost: USD 300-2,000 per SKU.

• No NOM certificate = shipment hold
• Check our NOM certification guide for details

Sanitary import permits (SENASICA)

If you’re shipping food, plants, or animal products, you need a sanitary import permit from SENASICA. Timeline: 1-3 weeks, cost: USD 100-500. Missing permits trigger holds and inspections.

ISPM 15 wood packaging requirements

Mexico enforces ISPM 15 for wood pallets and packaging. No heat treatment mark, or an illegible mark, means your shipment will be rejected or delayed. For pallet standards, see our US-GMA pallet guide.

Compliance Item	Agency	Timeline	Cost
NOM Certificate	Secretaría de Economía	2-6 weeks	USD 300-2,000
Sanitary Permit	SENASICA	1-3 weeks	USD 100-500
ISPM 15 Pallet Mark	N/A	Immediate	N/A

Common mistakes that increase taxes or cause shipment delays in Mexico (avoid these pitfalls)

Mexico’s customs system is unforgiving. We see these mistakes repeatedly—each can cost days, dollars, or even your cargo.

Incorrect or missing NOM certification

Many importers assume their China supplier’s certificates are enough. In Mexico, you need a local NOM certificate. Without it, electronics, textiles, and other regulated goods are held at port.

Failure to register in Padrón de Importadores

Skipping registry is a fatal error. Your cargo cannot clear until you’re registered. Customs brokers can help, but the process takes 2-4 weeks.

Improper wood packaging

Wood pallets and crates must have the ISPM 15 mark. If it’s missing or illegible, your shipment is rejected or delayed. Always verify before loading.

Incorrect HS code declaration

A mismatched HS code means customs will reclassify—often to a higher IGI rate. Double-check technical descriptions and ensure all paperwork matches.

Misunderstanding USMCA eligibility

Not all goods from China get zero IGI under USMCA. Only products meeting strict rules of origin qualify. If you claim zero IGI incorrectly, expect audits or back-charges.

Practical playbook: quoting and planning landed cost for Mexico (step-by-step guide)

Estimating your landed cost in Mexico means factoring in IGI, IVA, broker fees, certification costs, and clearance timelines. Planning ahead is essential—especially around port holidays.

Estimating IGI and IVA

Start with your CIF customs value. Apply the IGI rate (from HS code), then calculate IVA on the sum. Use the formulas above. For a quick comparison of FCL vs LCL costs, see our sea freight guide. For air vs express, check air freight vs express.

Cost Component	Typical Range
IGI	0%-35% (by HS code)
IVA	16% (standard), 8% (border)
Customs broker fee	USD 200-500 per shipment
NOM certificate	USD 300-2,000 per SKU
Sanitary permit	USD 100-500

Factoring in customs broker fees and certification costs

Customs brokers are essential for clearing shipments and handling registry, pedimento, and compliance checks. Fees are typically USD 200-500. Certification costs add up for regulated goods—plan for the timeline and expense.

Planning for clearance timelines and port holidays

Mexico’s clearance is fast for compliant shipments, but holidays and inspections can add days. Ports close or operate with reduced staff during Semana Santa, Día de la Independencia, Día de los Muertos, and Navidad/Año Nuevo. For last-mile logistics, see our delivery guide.

Bottom line: what importers should expect when shipping to Mexico (final takeaways)

Mexico’s import process is rigorous: HS code classification, CIF-based customs value, IGI and IVA calculation, and strict compliance requirements. Registration in the Padrón de Importadores and local NOM certification are mandatory for most shipments. Customs scrutinizes every document—mistakes or missing certificates mean delays, audits, or extra tax. Advance planning, accurate paperwork, and local compliance are essential for smooth clearance. For a tailored quote and expert support, start with our Mexico shipping team and see the full Mexico shipping guide for broader context.