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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Ley del Instituto del Fondo Nacional de la Vivienda para los Trabajadores y de la Ley Federal del Trabajo, en materia de vivienda con orientación social.

El 21 de febrero de 2025, se reformaron, adicionaron y derogaron diversas disposiciones de Ley del Instituto del Fondo Nacional de la Vivienda para los Trabajadores y de la Ley Federal del Trabajo, en materia de vivienda con orientación social.

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Actualización sobre la Reforma al Impuesto sobre Nóminas y Beneficios Fiscales para 2025

Reforma reciente al Código Fiscal de la Ciudad de México, que modifica el artículo 158 para establecer una nueva tasa para el Impuesto sobre Nóminas.

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Alert.

Update to the 2025 Miscellaneous Tax Resolution

On January 13, 2025, Annex 1-A of the Miscellaneous Tax Resolution for 2025 was published in the Official Gazette of the Federation (DOF), containing various provisions applicable to the current tax legislation.

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Alert.

Update to the Measurement and Update Unit (UMA)

On January 10, 2025, the Official Gazette of the Federation published the update to the values of the Measurement and Update Unit (UMA), which will be effective starting February 1, 2025.

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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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El reto de obtener la devolución de IVA sin rispideces.

En México, muchas empresas enfrentan de forma recurrente un mismo desafío: recuperar sus saldos a favor de IVA. Si bien en teoría el proceso debería ser ágil y transparente, en la práctica se ha convertido en un trámite complejo, prolongado y con riesgos legales si no se ejecuta con rigor técnico.

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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