IMMEX Program & Maquiladoras In Mexico: The Complete Guide (2026)

This is the most common scheme, designed for companies that temporarily import raw materials or components to undergo a manufacturing or transformation process in Mexico, and then export the finished goods to the U.S. or other FTA (Free Trade Agreement) countries.

This model fits organizations running a production-based operation with direct control over manufacturing flows.

For export-oriented companies that provide specialized services rather than traditional manufacturing, this modality caters to activities such as warehousing and logistics support, product testing, repair, item bundling, light assembly, or other functions that support export operations.

In short, it covers warehouse-based value-added work structured as an export service model.

A core operating scheme, this model refers to a foreign company that operates under a contract with a Mexican shelter provider that acts as the local entity of record.

The shelter typically manages the legal, HR, and compliance structure so the foreign business can focus on running the operation without forming its own Mexican subsidiary from day one.

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This structure is used by larger groups, where a parent or holding company registers a single IMMEX program that can cover its own activities and those of its subsidiaries, simplifying administration and consolidating reporting across multiple sites.

Here, the IMMEX-certified entity does not carry out all production in its own facility. Instead, production can be executed through an approved third party under a registered arrangement, with defined responsibilities for control and compliance.

This modality is often used in more complex corporate setups, where execution and control responsibilities are split across entities.

To combat “unfair” competition, Mexico increased MFN (Most Favored Nation) import tariffs to a 5%-50% range across 1,463 items coming from non-FTA countries like China, South Korea, or India.

The vast majority of these taxes fall in HS codes that belong to core product categories: textiles, clothing, steel, plastics, auto parts, and aluminum.

The reform expands the authority of the ANAM (Agencia Nacional de Aduanas de México – National Customs Agency of Mexico) and makes electronic records, digital traceability, and data matching between Annex 24 – the IMMEX inventory-control system for temporary imports – and government customs platforms a baseline standard.

Programs like IMMEX and RFE (Recinto Fiscalizado Estratégico – Strategic Bonded Facility) are under tighter oversight, with authorities using data-driven reconciliation to match physical inventory to financial and customs documentation.

The goal is to ensure temporary imports are strictly tied to specific export activity. This means that companies need more complete support files for the entire asset lifecycle, including contracts, bills of materials, inventory movements, and the logistics trail that proves how goods entered, moved, and ultimately exited Mexico.

Mexico’s 2026 customs reform pushes the customs broker (agente aduanal) further into a gatekeeper role, shifting toward shared responsibility with importers.

With accountability now tied more closely to licensing, brokers are being pushed to apply stricter discipline around classification, valuation, and declarations, supported by more accurate documentation and more conservative clearance decisions.

In practice, companies should expect fewer “quick clears” when support is thin, and more requests for backup documentation to defend customs positions.

The reform makes it easier for the SAT (Servicio de Administración Tributaria – Mexico’s Tax Administration Service) to trigger fines for operational issues like data errors in COVE (Comprobante de Valor Electrónico – Electronic Value Receipt) or documentation delays.

This pushes stricter receiving, exception handling, and record discipline, turning the environment from a culture of warnings to immediate penalties.

Under IMMEX, companies could traditionally bring tools and equipment into Mexico under a temporary 10-year import status, typically deferring the 16% VAT and even certain duties as long as the asset would be later exported or regularized.

However, this temporary-import window is now reduced to 5 years for many tooling assets, such as dies and molds, to prevent “temporary” status from being used for assets that effectively stay in Mexico for their full working life.

While much general production machinery still retains the 10-year period, the shorter timeline for other equipment forces faster planning and can pull tax liability forward.

To balance cost and tracking complexities, many maquiladoras import high-value machinery to avoid the upfront VAT outlay, while buying low-cost racks, furniture, and basic tools locally from Mexican suppliers.

In order to work around the temporary-import window, many IMMEX operators have long relied on virtual transfers to move tooling between program participants without triggering an immediate 16% VAT payment.

As of 2026, however, using virtuals primarily to “reset the clock” is much riskier. Liability can follow the item through the chain, transfers that look simulated can raise contraband exposure, and ANAM/SAT can flag paper-only moves more easily thanks to stronger, near-real-time data visibility.