Readings > Labor Reform in Mexico: Gradual Reduction of the Workweek to 40 Hours

Workplace transformation in Mexico is already underway.

On March 3, 2026, a decree was published in the Diario Oficial de la Federación amending Article 123 of the Constitución Política de los Estados Unidos Mexicanos, establishing the gradual reduction of the weekly workweek from 48 to 40 hours.

This reform represents one of the most significant labor changes in recent decades, with direct implications for companies’ operations, labor costs, and productivity models across the country.

Purpose of the Reform

The constitutional amendment aims to improve employees’ quality of life, promoting a better balance between work and personal life.

It establishes that the maximum workweek will be 40 hours, under the terms to be defined by applicable secondary legislation.

Gradual Implementation

To facilitate business adaptation, the decree provides for a progressive transition:

• 2026: 48 hours
• 2027: 46 hours
• 2028: 44 hours
• 2029: 42 hours
• 2030: 40 hours

This phased approach is intended to support an orderly adjustment, particularly in labor-intensive sectors.

Working Conditions and Applicable Rights

The decree includes several provisions to protect labor rights during the transition:

• There can be no reduction in salaries or benefits as a result of the shorter workweek.
• For every six working days, employees are entitled to at least one paid day of rest.
• Overtime may not exceed 12 hours per week, limited to a maximum of four hours per day across four days, and must be compensated according to legal surcharges.
• Minors under 18 years of age are prohibited from working overtime.

Implications for Businesses

Although the reduction will be gradual, companies should anticipate several key adjustments:

• Restructuring of shifts and work schedules
• Review of employment agreements and internal work regulations
• Assessment of impacts on labor costs and productivity
• Potential need for additional hiring in certain sectors
• Adjustment of overtime control policies

Organizations that proactively prepare for these changes will be better positioned to avoid labor contingencies and optimize their operations.

How We Can Support

At Guerrero & Santana, S.C., we support domestic and international companies in:

• Assessing the impact of the reform on their workforce structure
• Redesigning work schedules, shifts, and productivity models
• Updating employment agreements and internal policies
• Developing preventive strategies to avoid labor contingencies or inspections

 
We appreciate the trust placed in our firm and remain at your disposal to analyze the specific impact of this reform on your organization.