ASCG Informs About The Consolidation Of The Imss Mailbox As A Mandatory Communication System

Jun 17, 2024

Mexico City – AS Consulting Group (ASCG), a leader in consulting and advisory services in accounting, tax, and legal matters, informs its clients about the recent publication in the Official Gazette of the Federation (DOF) of the decree that amends the Social Security Law concerning digital tools. This change, effective from June 8, 2024, establishes the mandatory use of the IMSS Mailbox for various administrative and fiscal procedures.

The Mexican Social Security Institute (IMSS) will now manage notifications, subpoenas, summons, and the issuance of resolutions through the IMSS Mailbox, a digital platform accessible 24/7, designed to facilitate communication between the Institute and users, including employers, beneficiaries, public accountants, and legal representatives. This mechanism ensures the notification of acts, requirements, or administrative resolutions efficiently and securely, with the same legal validity as documents signed in handwriting.

In the first phase of implementation, the system will address procedures related to incorporation, collection, and auditing. Additionally, users will be able to make inquiries about their fiscal and administrative situation before the IMSS digitally. It is important to note that procedures can also continue to be carried out through the 133 IMSS Sub-delegations.

Moreover, it is crucial that individuals register and keep their contact details with the IMSS updated. If the IMSS Mailbox is not enabled, or if incorrect data is registered, the Institute may proceed with notifications according to the Federal Fiscal Code.

As a result of the above, the Institute was given a period of up to 60 days to publish in the Official Gazette of the Federation and on its website the general rules for the operation of the IMSS Mailbox, as well as the procedures and services that will initially be available through it.


The documentation obtained through this electronic means produces the same legal effects as documents signed by hand and, consequently, has the same probative value.

ASCG is committed to assisting its clients in adapting to these new provisions and ensuring compliance with their fiscal and administrative obligations with the IMSS. For more information or assistance related to the use of the IMSS Mailbox, please do not hesitate to contact us.

Contact for more information: C.P. Diego Medina Manager BPO | AS BPO

About AS Consulting Group:

ASCG, a member of SMS Latin America, is an international leader in consulting and advisory services in accounting, tax, labor, and legal matters for SMEs, both national and foreign, in Mexico since 1991, dedicated to offering innovative and efficient solutions to its clients, ensuring compliance with their fiscal obligations and capitalizing on growth opportunities in the business field. Being members of SMS Latin America allows us to have a presence in more than 21 countries and be part of the Forum of Firms, IFAC Committee (International Federation of Accountants).

SMS Latin America is a network of professional firms whose members are separate and independent legal entities operating under their particular name and identifying themselves as members of SMS Latin America. Each of the member firms acts in a specific geographical area and provides professional services subject to the professional laws and regulations of the country or countries in which it operates. SMS Latin America does not provide services to clients and is not responsible for the acts or omissions of any of its member firms. The member firms are separate and independent legal entities without any link or intervention over the other member firms.

This publication only contains general information of an informative nature and neither AS Consulting Group, Arreguin Sánchez and Associates, SMS Latin America, nor its member firms, nor any of their respective affiliates, provide advice or services through this publication. Before making any decision or action that may affect your finances or business, you should consult a qualified professional advisor. No entity will be responsible for any loss that any person or entity consulting this publication may incur.

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