The IMMEX Program: Mexico's Best-Kept Secret for Manufacturers.

If you are a Canadian company manufacturing goods for export, or considering it, there is a Mexican program that can fundamentally alter your cost structure. It is called IMMEX, and despite being one of the most powerful incentive frameworks in North American trade, it remains poorly understood outside of Mexico's manufacturing corridors.

IMMEX stands for Industria Manufacturera, Maquiladora y de Servicios de Exportación. It is the modern evolution of Mexico's original maquiladora program, and it allows qualifying companies to temporarily import raw materials, components, and equipment into Mexico, duty-free and VAT-free, provided those materials are used to manufacture goods for export.

How does the IMMEX program work?

Under IMMEX, a registered company can bring materials into Mexico without paying the standard import duties or the 16% value-added tax (IVA) that would normally apply. The materials enter under a temporary import designation, are transformed through manufacturing, and the finished goods are exported. The duties are never triggered.

This is not a tax credit or a rebate. It is a complete exemption at the point of entry. For manufacturers whose raw material costs represent a significant share of their cost of goods sold, the savings are immediate and substantial.

Who qualifies for IMMEX?

IMMEX is available to companies engaged in manufacturing, processing, or assembly operations where the finished product is destined for export. This includes traditional maquiladora operations, but it extends well beyond them, to companies in automotive, aerospace, electronics, food processing, medical devices, and industrial equipment.

The key requirement is that the imported materials must be used in production for export. Domestic sales are permitted under certain conditions, but they trigger the deferred duties and VAT.

Can you use IMMEX without incorporating in Mexico?

One of the most strategically interesting aspects of IMMEX is the shelter model. Under a shelter arrangement, a foreign company can begin manufacturing in Mexico without forming its own legal entity. Instead, it operates under the IMMEX permit of a Mexican shelter provider.

The shelter company handles customs compliance, payroll, tax filings, and regulatory obligations. The foreign company provides the technology, the processes, and the management. This model allows manufacturers to begin production in months rather than the year or more it can take to establish a standalone operation.

For Canadian companies evaluating Mexico as a production base, particularly those motivated by the current tariff environment, the shelter model offers a way to test the market with limited legal and financial exposure before committing to a permanent establishment. When you are ready to formalize, our guide to Mexico entity structures covers the key decisions.

Why does IMMEX matter now?

The current tariff landscape has made IMMEX more relevant than it has been in decades. Canadian companies sourcing components from China now face significant duties when those components enter the United States, up to 25% under various Section 301 and Section 122 measures. By shifting assembly or manufacturing to Mexico under an IMMEX permit, those same components can enter duty-free, and the finished goods can cross into the US or Canada under USMCA preferential treatment, provided they meet the applicable rules of origin.

This is the supply chain reconfiguration that hundreds of companies are undertaking right now, as we detailed in our 2026 nearshoring outlook. IMMEX is not a loophole. It is the mechanism by which Mexico has positioned itself as the manufacturing bridge between Asia and North America.

What are the IMMEX compliance obligations?

IMMEX benefits come with compliance obligations. Companies must maintain detailed customs documentation, submit periodic reports to Mexico's Secretariat of Economy (SE), and ensure that temporarily imported materials are accounted for and either exported or returned within the prescribed timeframes. VAT certification, a separate but related process, is required to access the full IVA exemption on temporary imports.

These requirements are manageable but not trivial. Companies that treat IMMEX compliance as an afterthought risk losing their permits and facing retroactive duty assessments.

How do IMMEX and USMCA intersect?

IMMEX and USMCA are not the same program, but they work together. IMMEX governs the temporary import of materials. USMCA governs the preferential treatment of finished goods crossing between Mexico, the US, and Canada. A well-structured operation uses both, importing materials duty-free under IMMEX, manufacturing in Mexico, and exporting finished goods under USMCA preferential tariff rates.

Getting this right requires understanding rules of origin, regional value content calculations, and the specific product-level requirements under USMCA. It is technical work, but for companies that do it well, the combined effect is a cost structure that competitors without a Mexico presence simply cannot match.

We work with Canadian manufacturers evaluating IMMEX as part of their nearshoring strategy. If the math is worth running, we should talk.