Alerts

At Competimex, we keep you informed about the latest changes in regulations and tax obligations. Our legal and tax alerts section provides you with essential information to ensure your business complies with regulations and optimizes its resources.

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SAT intensifica acciones de cumplimiento en materia de Actividades Vulnerables (Comunicado 054/2025)

El Servicio de Administración Tributaria (SAT) intensificó su campaña de información y orientación a sujetos obligados que realizan Actividades Vulnerables, mediante la actualización del Minisitio especializado y la expansión del Programa Tríptico, con el objetivo de fortalecer la cultura del cumplimiento y combatir operaciones con recursos de procedencia ilícita.

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Reforma a la Ley de Amparo: principales cambios y consideraciones.

El pasado 16 de octubre de 2025, fue publicado en el Diario Oficial de la Federación, en su edición vespertina, el decreto que reforma y adiciona diversas disposiciones a la Ley de Amparo, Código Fiscal de la Federación y la Ley Orgánica del Tribunal Federal de Justicia Administrativa.

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SAT da a conocer criterios de programación de auditorías

El Servicio de Administración Tributaria (SAT) dio a conocer los criterios de programación de auditorías que aplicará con el objetivo de fomentar la transparencia y brindar certidumbre jurídica a los contribuyentes.

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Quinta Resolución de Modificaciones a la Resolución Miscelánea Fiscal para 2025.

El Servicio de Administración Tributaria (SAT) dio a conocer la Quinta Resolución de Modificaciones a la Resolución Miscelánea Fiscal para 2025, en su Primera versión anticipada, a través del Portal del SAT.

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Alert 01.

General Guidelines for the Operation of the IMSS Mailbox

On August 5, 2024, agreement ACDO-AS2.HCT.230724/261.P.DIR. of the H. IMSS Technical Council, which approves the guidelines for the operation of the IMSS Mailbox, is published in the Official Gazette of the Federation.

Obligation: Enable the IMSS mailbox within 180 days from publication in the Official Gazette of the Federation.
Electronic Notifications: The authority may notify administrative acts electronically.
Notification Deadline: The notification will be deemed to have been made within 3 business days of receipt, and will subsequently be deemed to have been notified automatically.
Electronic Procedures: Procedures initiated electronically must be completed electronically.

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Oct 20, 2025

Fiscal Code Reforms: Action Against False Invoices and the Risks Facing Businesses

The proposed amendments to the Federal Fiscal Code (CFF) seek to align the legal framework with the December 2024 constitutional reform establishing mandatory pretrial detention for the use of “false tax invoices.” Far from a technical tweak, the initiative introduces a suite of measures that will impact companies’ day-to-day operations in e-invoicing, taxpayer registration, and technology-enabled compliance.

Business Model Optimization: A Key Driver of Efficiency and Profitability

In today’s business landscape, competition is fiercer than ever. Emerging technologies, shifting consumer behavior, and globalization have lowered barriers to entry, forcing companies to adapt or risk irrelevance. In this context, optimizing the business model and strengthening management discipline is no longer optional—it is a strategic imperative.

Aug 19, 2025

Anti-Money Laundering Law Reform: Implications and Strategic Opportunities

Reforms to anti-money laundering legislation represent a significant shift in corporate compliance obligations. By expanding the list of vulnerable activities, redefining the concept of beneficial ownership, and introducing incentives for voluntary remediation, the private sector is compelled to intensify its compliance efforts—bringing legal, operational, and financial implications, particularly for SMEs.

Jul 28, 2025

Alerts

At Competimex, we keep you informed about the latest changes in regulations and tax obligations. Our legal and tax alerts section provides you with essential information to ensure your business complies with regulations and optimizes its resources.

General Guidelines for the Operation of the IMSS Mailbox

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