Subject: Approval of the constitutional reform establishing a work schedule of six days and 40 labor hours per week.
On March 3, 2026, the Decree was published in the Official Gazette of the Federation, entering into force on the same day. This Decree amends sections IV and XI of Section A of Article 123 of the Political Constitution of the United Mexican States regarding the reduction of the workweek ("Decree").
The approved reform, at a constitutional level, involves decisive changes, namely:
- A 40-hour workweek is established.
- The 6-day work schedule followed by one paid day of rest remains in effect.
- A gradual implementation of the reduction is established, beginning every January 1st of the corresponding year:
| Year | Hours |
|---|---|
| 2026 | 48 |
| 2027 | 46 |
| 2028 | 44 |
| 2029 | 42 |
| 2030 | 40 |
Overtime work will be limited to 12 hours per week, distributed over 4 days and/or up to 4 hours per day, paid at 100% (one hundred percent) additional. Any time exceeding these thresholds must be paid at 200% (two hundred percent) additional. A comparative table is included below:
| Overtime prior to the reform | Overtime after the reform |
|---|---|
| Limit of 3 hours per day for up to 3 days per week, as established in the Federal Labor Law. Excess is paid at 200% additional. | Limit of 12 hours per week, up to 4 hours per day and/or up to 4 days per week (CPEUM). Excess is paid at 200% additional. |
- Overtime work is prohibited for individuals under 18 years of age.
This reform could generate significant impacts on organizational planning and operations, including:
- Reconfiguration of shifts and work schedules
- Increased costs to maintain the same operational level
- Potential increases in labor costs
- Impact on productivity and operational strategies
- Revision of labor contracts and internal policies
- Evaluation of labor, tax, and social security risks associated with overtime management
- Time and cost investment for training.
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