IVA/IEPS Certification in México: Complete Guide for Manufacturers

México recorded $664.84 billion USD in exports during 2025 — a national record. Approximately 80% of those manufacturing exports moved through the IMMEX program, and 97% of the value of all temporary imports entered the country under the IVA/IEPS certification. That single statistic reveals the scale of what this certification means: it is the fiscal mechanism that keeps México’s manufacturing export engine running without a cash-flow penalty that would otherwise cripple operations.

For foreign manufacturers evaluating or already operating in México, the IVA/IEPS certification determines whether 16% of every import dollar sits trapped in a government refund queue — or moves through the supply chain without friction. As of October 2025, only 3,136 companies hold active certification, a number that has declined steadily from 3,658 in 2018. Understanding what this certification does, how to obtain it, and what recent regulatory shifts mean for manufacturers in 2026 is no longer optional background knowledge. It is operational intelligence.

The certification is structured into three escalating tiers — Rubro A, Rubro AA, and Rubro AAA — each requiring progressively higher thresholds of operational maturity and fiscal compliance.

Rubro A is the foundational tier. It requires at least 12 months of IMMEX temporary import operations, a minimum of 10 employees registered with the Mexican Social Security Institute (IMSS), a functioning Annex 24 automated inventory control system, a positive SAT compliance opinion (Opinión de Cumplimiento) for the preceding 12 months, and a minimum 60% return rate on temporarily imported goods. VAT refund processing under Rubro A takes up to 20 business days.

Rubro AA raises the bar. Companies must demonstrate at least four years of operations under the applicable customs regime, or employ more than 1,000 IMSS-registered workers, or maintain machinery and equipment valued above $50 million MXN. At least 40% of domestic input purchases must come from suppliers with clean fiscal standing. VAT refund processing improves to 15 business days.

Rubro AAA represents the highest tier. Requirements include at least seven years of operations, or more than 2,500 IMSS-registered workers, or equipment valued above $100 million MXN. The compliant supplier threshold rises to 70% of domestic inputs. VAT refund processing drops to 10 business days, with maximum administrative facilitations including consolidated customs filings and expanded self-correction privileges.

As of mid-2023 — the most recent publicly available tier breakdown — the distribution among 3,480 certified companies was: Rubro A held 1,867 companies (54%), Rubro AA held 365 companies (10%), and Rubro AAA held 1,248 companies (36%). Since November 1, 2023, all three tiers require annual renewal. Previously, Rubro AA carried a two-year validity and Rubro AAA a three-year validity — a change that significantly increased the administrative burden for higher-tier companies.

The financial impact of certification is not theoretical. Consider a mid-sized manufacturer importing $10 million USD in materials monthly. Without certification, the company must pay $1.6 million USD in VAT at the point of every import. Under the Federal Tax Code, SAT has 40 business days — roughly two calendar months — to process a refund request. In practice, refund timelines frequently extend beyond that window, particularly when SAT issues additional information requests that suspend the processing clock.

At any given moment, a non-certified company with this import volume has between $3.2 million and $6.4 million USD perpetually tied up in the refund cycle. At an 8% annual financing rate, that represents $256,000 to $512,000 USD in annual carrying costs — money that produces zero operational value.

With certification, the 100% tax credit eliminates this entirely. The VAT obligation is offset at the customs declaration. No cash leaves the company, no refund application is filed, and no capital sits idle in the SAT refund queue. For the total IMMEX sector, certified companies account for 97% of all temporary import value, reflecting the fact that meaningful-scale manufacturing operations in México are not financially viable without this certification.

Non-certified companies also face additional operational limitations: shorter temporary import periods (18 months versus 36 months for certified companies under OEA), no automatic registration in the Padrón de Importadores de Sectores Específicos, no self-correction windows for customs inconsistencies, and the obligation to present the Manifestación de Valor and calculation worksheets that certified companies are exempt from filing.

For foreign manufacturers operating under México’s shelter model, the IVA/IEPS certification is not held by the foreign company. The Mexican shelter company — as the holder of the IMMEX program and the legal face of the operation before SAT and the Secretaría de Economía — holds the certification at whatever tier it has obtained.

The certification is granted at the legal entity level. A single shelter company’s certification covers all foreign manufacturers operating under its IMMEX program, since each foreign client’s operation functions as a distinct project within the shelter’s corporate structure.

This structure creates both advantages and specific risks. In a multitenant shelter model, where multiple foreign clients operate under one legal entity and one IMMEX program, a single certification covers all clients — but non-compliance by any one client’s operation can trigger certification consequences for every client under that same program. In a dedicated shelter model, a separate legal entity is created for a single foreign client, providing compliance isolation but requiring longer setup time and independent certification.

The practical advantage for foreign manufacturers is significant. A shelter provider with an established certification allows a foreign client to begin importing under the 100% tax credit within weeks, compared to the 6–12 months a standalone company would need to incorporate a Mexican entity, obtain its own IMMEX program, build an Annex 24 inventory system, and apply for certification independently.

This makes the shelter provider’s certification status a critical due diligence factor. Foreign manufacturers should verify the current certification tier and its specific expiration date, the provider’s renewal history (any lapses or interruptions signal compliance issues), the robustness of the Annex 24 inventory control system, whether the shelter model is multitenant or dedicated, and whether the shelter and its shareholders appear on SAT’s non-compliant or Article 69-B lists.

The IVA/IEPS certification environment has shifted dramatically since late 2023. Several regulatory changes converge to create a more demanding compliance landscape.

Universal annual renewal (October 2023). The Fourth Resolution of Amendments to the RGCE 2023, published on October 30, 2023, reduced the validity of all IVA/IEPS certification tiers to one year. This tripled the renewal frequency for AAA holders and doubled it for AA holders, increasing the administrative burden across the certified company population.

Annex 24 Section C (October 2024 – January 2025). The Second Resolution of Modifications to RGCE 2024 introduced a new Section C to Annex 24, specifically targeting RECE companies. The key requirements include updating the automated inventory control system within 48 hours of customs dispatch completion and providing SAT with online access credentials for real-time monitoring of inventory records. Beginning September 2, 2025, AGACE formally initiated cancellation procedures against companies whose systems could not be accessed — classifying this as a grave non-compliance.

SAT enforcement escalation. In 2023, SAT conducted 505 audits of certified companies — a 170% increase over the prior year. During the first half of 2023, 513 companies were found non-compliant, including 50 large taxpayers in the textile, aluminum, steel, and automotive sectors. Approximately 75% of those had certifications cancelled, generating MXN 8,324 million in presumptive fiscal credits. As of early 2026, approximately 385 IVA/IEPS certifications have been cancelled through enforcement actions.

IMMEX Operación Limpieza. In parallel, the Secretaría de Economía suspended 670 IMMEX programs through 2025, with 170 permanently cancelled in September 2025. When an IMMEX program is cancelled, the associated IVA/IEPS certification is directly affected — companies lose the ability to import temporarily and must regularize all goods within 60 natural days.

Customs Law reform (January 1, 2026). México’s reformed Customs Law, published November 19, 2025, modifies 65 articles and adds 44 new articles. For certified companies, the changes include expanded documentation requirements (financial flows, contracts, logistics costs, production records), enhanced broker due diligence obligations, and — critically — criminal liability provisions for false origin certifications, simulated virtual transfers, and incorrect customs valuations. The duties revenue target rises from approximately MXN 151.7 billion to MXN 254.7 billion, a 68% increase that signals intensified scrutiny.

IMMEX 4.0 and certification unification. Under Plan México, announced January 13, 2025, the IMMEX 4.0 initiative proposes to unify the IVA/IEPS certification process with the IMMEX program itself — eliminating the need for separate applications to SAT and the Secretaría de Economía. The goal is a 50% reduction in authorization times through full digitalization and a single digital file integrating all certifications. As of early 2026, no formal decree has been published. The initiative remains in the consultation and design phase, with the Secretaría de Economía, INDEX, and AMCHAM conducting working sessions.

The IVA/IEPS Certification — formally known as the Registro en el Esquema de Certificación de Empresas (RECE) in the IVA/IEPS modality — is a status granted by México’s Tax Administration Service (SAT) that allows qualifying IMMEX companies to apply a 100% tax credit against the Value Added Tax (16% IVA) and the Special Tax on Products and Services (IEPS) that would otherwise be payable on temporary imports.

The certification was created in response to México’s 2014 tax reform. Prior to that year, IMMEX companies were effectively exempt from paying VAT on temporary imports. The reformed Ley del Impuesto al Valor Agregado (LIVA), published on December 11, 2013 and effective January 1, 2014, eliminated that automatic exemption. Every IMMEX company was suddenly required to pay 16% VAT upfront on each import and then manage a complex refund process after the goods were exported. The cash-flow burden was severe — tying up millions of dollars in working capital across the manufacturing sector.

After significant industry mobilization, the government introduced the certification scheme as the remedy. Companies that demonstrate fiscal reliability and maintain robust inventory control systems receive the 100% tax credit, applied directly at the point of import on the customs declaration (pedimento). The credit is not an exemption — it is a fiscal tool that offsets the VAT obligation at the moment it arises, so no cash leaves the company’s accounts.

The certification’s legal foundations rest on Article 28-A of the Ley del IVA, which establishes the tax credit; Article 15-A of the Ley del IEPS, which provides the parallel provision for IEPS credits; and Title 7 of the Reglas Generales de Comercio Exterior (RGCE), specifically Rules 7.1.1 through 7.3.7, which govern the requirements, tiers, obligations, and benefits.

The certified company registry has been in consistent decline. From a peak of approximately 3,658 companies in mid-2018, the count has fallen to 3,136 as of October 2025 — a net loss of 522 companies (−14.3%) over seven years.

The trajectory from January 2024 through October 2025 shows the sharpest recent erosion: from 3,399 companies to 3,136, a loss of 263 companies in less than two years. The decline accelerated through 2025, with the registry dropping from 3,244 in January to 3,136 by October — losing more than 100 companies in ten months.

Multiple factors drive this contraction. The shift to universal annual renewal increased the frequency at which compliance is verified. SAT’s aggressive enforcement campaigns — targeting abuse of certification benefits, particularly firms importing temporarily without IVA payment while diverting goods to the domestic market — removed non-compliant companies. The new Annex 24 Section C requirements, demanding real-time online access to inventory systems, created a compliance threshold that some companies could not meet. And the broader IMMEX Operación Limpieza campaign, which suspended or cancelled hundreds of IMMEX programs, directly affected the associated certifications.

For foreign manufacturers, this contraction has a practical implication: fewer certified companies means fewer qualified shelter partners. The remaining certified companies represent a higher-quality, more compliance-mature population — but the premium on selecting a provider with robust certification history has increased accordingly.

Obtaining the IVA/IEPS certification requires filing electronically through the Ventanilla Digital (VUCEM) portal using the company’s advanced electronic signature (e.firma). SAT’s foreign trade audit division (AGACE) has 40 business days to review the application and may conduct an on-site facility inspection. Required documentation includes: complete lists of foreign clients, suppliers, and domestic input providers with RFC numbers; IMSS worker registration records; proof of legal property use with at least one year of remaining validity; a positive fiscal compliance opinion issued within 30 days of application; and a detailed description of the productive process from goods arrival through return.

Common rejection reasons include: the company not being locatable at its registered fiscal address, Annex 24 inventory control deficiencies, failure to meet the 60% return threshold on temporary imports, links to previously sanctioned companies, and IMSS registration irregularities.

Once certified, maintaining the status requires continuous compliance across multiple departments. The company must keep the Annex 24 system updated daily and now provide SAT with online access. It must export at least 60% of temporarily imported goods annually, maintain a positive Opinión de Cumplimiento at all times, file notices within five business days for changes to corporate name, fiscal address, or operational facilities, and pay the annual certification rights fee of $40,267 MXN (2026). Failure to renew within 30 business days before the expiration date results in automatic loss of all certification benefits — there is no grace period.

The consequences of cancellation are severe: immediate loss of the 100% tax credit, a requirement to regularize all temporarily imported goods within 60 natural days, a two-year ban on reapplying, and SAT collection of outstanding VAT on all merchandise with pending return obligations.

The IVA/IEPS certification does not exist in isolation. It forms part of a broader certification ecosystem that manufacturers should understand.

The OEA (Operador Económico Autorizado) program is México’s implementation of the World Customs Organization’s SAFE Framework. While IVA/IEPS certification focuses on fiscal compliance and the VAT tax credit, OEA focuses on supply chain security. The two certifications are complementary — companies can and frequently do hold both. Importantly, the 36-month temporary import period that was removed from the IVA/IEPS certification in the July 2020 RGCE reform is now available only through OEA certification. Companies holding only IVA/IEPS certification are limited to the standard 18-month period for raw materials and components.

The U.S. Customs-Trade Partnership Against Terrorism (C-TPAT) program operates under a Mutual Recognition Agreement with México’s OEA. Companies with C-TPAT “Certified-Validated” status can apply for OEA through a streamlined process. C-TPAT does not directly interact with the IVA/IEPS certification — the connection flows through OEA.

At the highest tier of the certification ecosystem sits SECIIT (Sistema Electrónico de Control de Inventarios de Importaciones Temporales), an advanced OEA modality that requires active IVA/IEPS certification in Rubro AA or AAA as a prerequisite. As of 2025, only 14 companies hold SECIIT certification nationwide — making it the most exclusive status in México’s foreign trade regime. These 14 companies, operating across 11 locations in México, handle approximately $48 billion USD in annual operations. SECIIT-certified companies receive the most expansive benefit package: a 48-month temporary import period, elimination of administrative customs procedures (PAMAs), simplified customs forms, no requirement for value manifestation documents, and weekly or monthly consolidated customs declarations. Some SECIIT companies report savings of $2 million USD or more annually, with approximately 70% reduction in customs brokerage costs.

The December 2024 textile import restrictions provide a concrete illustration of how IVA/IEPS certification has become a gating requirement beyond its original VAT-credit purpose.

On December 19, 2024, the Secretaría de Economía published a decree establishing temporary tariffs of 15–35% on 155 textile and apparel tariff items from countries without free trade agreements with México. Simultaneously, the decree transferred approximately 302 tariff items from IMMEX Annex II to Annex I, effectively banning their temporary importation under the IMMEX program.

When a conditional exemption was issued on January 13, 2025, the qualification criteria required active RECE registration — meaning only companies with current IVA/IEPS certification could continue importing these goods temporarily. Companies also had to demonstrate Annex 24 Section C compliance and show historical import operations in those tariff lines during 2024. When the exemption was extended in August 2025, only 30 companies qualified, illustrating how the certification has become a filtering mechanism that separates compliant, legitimate manufacturers from entities that the government considers part of the “contrabando técnico” problem.

This episode demonstrates a broader trend: the IVA/IEPS certification is evolving from a purely fiscal instrument into a general marker of compliance credibility that determines access to regulatory benefits across multiple domains.