New Criteria for Tax Audits and Refunds: Greater Tax Certainty for Your Business
May 8, 2026
| New Criteria for Tax Audits and Refunds: Greater Tax Certainty for Your Business | Nuevos criterios para auditor铆as y devoluciones: mayor certidumbre fiscal para su empresa |
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| Recently, Mexico鈥檚 Ministry of Finance (SHCP) published the 鈥淎greement Establishing General Criteria and Operational Guidelines of an Advisory Nature to Promote Productive Investment and Tax Compliance.鈥 In practice, this instrument aims to foster a clear and predictable tax environment, streamline administrative procedures, encourage investment, and provide greater certainty in tax audits and refund processes. This is particularly significant in light of the upcoming review of the United States-Mexico-Canada Agreement (USMCA) and the growing interest in attracting both domestic and foreign capital to operate in Mexico. Below are the key points that may have the greatest impact on your operations and compliance strategy: – Single and Comprehensive Tax Audit. The goal is to consolidate audits into a single review per fiscal year and per taxpayer, based on representative information samples. In principle, parallel audits covering multiple fiscal years would be avoided, except in justified cases. – No Retroactive Application of Audit Criteria. Audits must adhere to applicable regulations in effect at the relevant time and observe statute-of-limitations periods, providing greater predictability regarding the scope and timeframe of reviews. – Digital Seal Restrictions as a Last Resort. The temporary restriction of digital certificates (required to issue electronic invoices or CFDI) and the cancellation of tax registrations should be used only as measures of last resort. The approach would prioritize previous preventive actions, due process protections, and expedited resolution mechanisms to regularize affected taxpayers, thereby reducing operational and financial disruption. – Faster Tax Refunds. Improvements are proposed to optimize refund processing times for tax credit balances, which could result in better cash flow and reduced uncertainty in recurring tax recovery processes. – Administrative Simplification. Measures are anticipated to streamline taxpayer registration with the Mexican Federal Taxpayer Registry (RFC) and the issuance of advanced electronic signatures, facilitating registrations, regularizations, and other key procedures for operating in Mexico. – Adherence to Double Tax Treaties. Compliance with international tax treaties to avoid double taxation is reaffirmed, which may provide greater certainty for cross-border structures and transactions of both domestic and foreign groups. – Protection Against Institutional System Failures. It is established that taxpayers will not be fined when official system failures prevent the timely fulfillment of tax obligations. – Strengthening of Prodecon. Efforts will be made to strengthen the institutional capacity of the Taxpayer Ombudsman (Prodecon), including mechanisms to enhance its functional and administrative coordination with other government authorities. If these criteria are consistently applied, they could significantly reduce the risk of facing unexpected or duplicative audit proceedings鈥攚hich often translate into additional legal costs, administrative burdens, and uncertainty regarding the viability of operations in Mexico. Notably, the proposal to treat digital certificate restrictions as a last measure is a significant update, as in recent years this measure has been one of the SAT鈥檚 most disruptive enforcement tools, immediately impacting business transactions by preventing the issuance of electronic invoices. Additionally, the emphasis on honoring double tax treaties may strengthen certainty for investors and groups with international operations, by providing greater clarity on the application of tax benefits and rules in cross-border structures. It is vital to consider that these guidelines are advisory in nature for the Tax Administration Service (SAT) and do not, by themselves, create enforceable rights for taxpayers or formally limit the legal powers of the tax authority. However, they do represent a public institutional commitment by the SHCP and the SAT, which may serve as a persuasive argument in administrative and judicial remedies when the authority acts contrary to these guidelines and which also provides a practical reference for anticipating how future audits may be conducted. At Foley Mexico, we can help you design a comprehensive compliance and audit response strategy, and assist you with tax refunds, regularizations, and administrative and judicial remedies. | Recientemente, la Secretar铆a de Hacienda y Cr茅dito P煤blico (SHCP) public贸 el 鈥淎cuerdo por el que se emiten criterios generales y lineamientos operativos de car谩cter orientador para el fomento a la inversi贸n productiva y el cumplimiento fiscal鈥. En la pr谩ctica, este documento busca impulsar un entorno fiscal claro y predecible, simplificar tr谩mites, promover inversi贸n y dar mayor certidumbre en procesos de fiscalizaci贸n y devoluci贸n de impuestos. Lo anterior cobra especial relevancia de cara a la pr贸xima revisi贸n del Tratado entre M茅xico, Estados Unidos y Canad谩 (USMCA) y al inter茅s creciente de atraer capital nacional y extranjero para operar en M茅xico. A continuaci贸n, compartimos los puntos que, en nuestra experiencia, pueden tener mayor impacto para su operaci贸n y su estrategia de cumplimiento: – Revisi贸n fiscal 煤nica e integral. Se buscar谩 concentrar la auditor铆a en una sola revisi贸n por ejercicio fiscal y por contribuyente, con base en muestras representativas de informaci贸n. En principio, se evitar铆an revisiones paralelas de distintos ejercicios, salvo casos justificados. – No retroactividad en criterios de revisi贸n. Las auditor铆as deber谩n apegarse a las disposiciones vigentes aplicables y respetar los plazos de caducidad, brindando mayor previsibilidad sobre el alcance y la temporalidad de las revisiones. – Restricci贸n de sellos digitales como 煤ltima medida. La restricci贸n temporal de certificados de sellos digitales (para emitir CFDI) y la cancelaci贸n de registros deber谩n utilizarse como mecanismos de 煤ltima instancia. El enfoque privilegiar铆a acciones preventivas, el respeto al derecho de audiencia y esquemas de atenci贸n expedita para regularizar a contribuyentes afectados, reduciendo el impacto operativo y econ贸mico. – Devoluciones de impuestos m谩s 谩giles. Se plantean mejoras para optimizar los tiempos de devoluci贸n de saldos a favor, lo que podr铆a traducirse en un mejor flujo de efectivo y menor incertidumbre en procesos recurrentes de recuperaci贸n de impuestos. – Simplificaci贸n administrativa. Se prev茅n acciones para agilizar la inscripci贸n al Registro Federal de Contribuyentes (RFC), as铆 como la obtenci贸n de la firma electr贸nica avanzada, facilitando altas, regularizaciones y tr谩mites clave para operar en M茅xico. – Respeto a tratados para evitar doble tributaci贸n. Se reafirma el cumplimiento de los tratados fiscales internacionales para evitar doble tributaci贸n, lo que puede aportar certidumbre a estructuras y operaciones transfronterizas de grupos nacionales y extranjeros. – Protecci贸n ante fallas de sistemas institucionales. Se establece que no se sancionar谩 a los contribuyentes cuando existan fallas en los sistemas institucionales que impidan el cumplimiento oportuno de obligaciones fiscales. – Fortalecimiento de la Prodecon. Se impulsar谩 el fortalecimiento institucional de la Procuradur铆a de la Defensa del Contribuyente (Prodecon), incluyendo mecanismos para mejorar su coordinaci贸n funcional y administrativa con otras autoridades. Si estos criterios se aplican de forma consistente, podr铆an reducir de manera relevante el riesgo de enfrentar procesos de fiscalizaci贸n sorpresivos o duplicados, que suelen traducirse en costos legales adicionales, cargas administrativas y dudas sobre la viabilidad de operaciones en M茅xico. En particular, que la restricci贸n de sellos digitales se plantee como 煤ltima instancia es una se帽al importante, ya que, en a帽os recientes, esta medida ha sido una de las herramientas m谩s disruptivas del SAT, que afecta de forma inmediata las operaciones al impedir la emisi贸n de facturas CFDI. Adicionalmente, el 茅nfasis en respetar los tratados para evitar la doble tributaci贸n puede fortalecer la certidumbre para inversionistas y grupos con operaciones internacionales, al dar mayor claridad sobre la aplicaci贸n de beneficios y reglas fiscales en estructuras transfronterizas. Es importante considerar que estos criterios tienen un car谩cter orientador para el SAT, no crean, por s铆 mismos, derechos exigibles para los contribuyentes ni limitan formalmente las facultades legales de la autoridad. Sin embargo, s铆 representan un compromiso p煤blico institucional de la SHCP y del SAT, que puede fortalecerse como argumento en medios de defensa cuando la autoridad act煤e en sentido contrario, y que tambi茅n sirve como referencia pr谩ctica para anticipar la forma en que podr铆an conducirse futuras revisiones. En Foley M茅xico podemos ayudarle a dise帽ar una estrategia de cumplimiento y atenci贸n de auditor铆as, y acompa帽arle en devoluciones, regularizaciones y medios de defensa. |
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