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Reduced Working Hours in Mexico: Risks, Costs, and What Businesses Must Monitor

Reduced Working Hours in Mexico: Risks, Costs, and What Businesses Must Monitor

Mexico's upcoming shorter workweek poses risks, raises costs, and demands careful oversight from businesses to adapt to the new labor landscape.

Amidst structural changes in the labor market, the reduction of working hours has become a key issue for the productive sector. The reform proposes a transition from 48 to 40 weekly hours by 2030, with direct implications for costs, productivity, and legal compliance. This raises the question: What should companies monitor?

A Progressive Reform Redefining Work in Mexico

According to the analysis by Luis Alberto Reséndiz Martínez, Partner at ZAR Tax Consultores y Asociados SC, the reduction of working hours is no longer a theoretical discussion. The constitutional reform published on March 3, 2026, in the

establishes a gradual transition. It maintains 48 hours in 2026, decreases to 46 in 2027, and will reach 40 hours in 2030. This change seeks to strengthen the right to rest. It also aims to improve mental health and labor productivity.

Hard Data: Fewer Hours, Greater Operational Pressure

The specialist warns that the real impact is reflected in daily operations. Currently, an employee dedicates 25% of their annual time to work, compared to 31% for sleep. Furthermore, employers pay for approximately 2,912 annual hours, but only 2,164 hours are effectively productive, meaning 74% of paid time. With the reduction to 40 hours, non-working time will increase to 40%, which intensifies pressure on business efficiency.

Productivity: The Major Challenge for Businesses

According to data cited by the specialist, based on the OECD, only 68% of working time is productive. This amounts to 1,461 effective hours per year. In contrast, the remaining 33% does not generate direct productivity. Therefore, companies must optimize processes and measure results with greater precision. Reséndiz Martínez emphasizes that this scenario compels a rethinking of operational models and business strategies.

Labor Costs and Consumer Prices

One of the most critical points lies in the economic impact. The expert indicates that the changes increase labor costs and social security contributions. Furthermore, he warns that these costs do not disappear. They are passed on to the final price of goods and services. “The end consumer ultimately pays for these actions,” emphasizes Luis Alberto Reséndiz Martínez. This effect could impact the competitiveness of companies, especially in price-sensitive sectors.

Managing overtime represents one of the biggest risks. Currently, up to 9 double-paid hours per week are allowed under certain conditions. If these limits are exceeded, hours must be paid at triple the rate. However, calculation errors can lead to labor disputes. The specialist warns that the IMSS can integrate these hours into the base salary. This increases social security contributions. Furthermore, the recurrence of overtime can be interpreted as a habitual practice, which exacerbates fiscal risk.

Criminal Risks and New Business Obligations

The reform also connects with recent legal changes. The 2024 amendment to the Human Trafficking Law introduces criminal risks for employers. This occurs when excessive working hours or labor non-compliance are detected. Therefore, internal monitoring is fundamental. Reséndiz Martínez insists on correctly documenting working hours and labor agreements. This practice reduces future legal disputes.

What Companies Must Monitor from Now On

The specialist proposes concrete actions to address the reform. First, he recommends reviewing hiring processes and offered schedules. He also suggests establishing clear overtime policies. These must include rules, limits, and formal documentation. Additionally, companies should evaluate their payroll, fiscal stamping (CFDI issuance), and salary integration with the IMSS. Finally, he advises redesigning shifts starting in 2027. This will allow anticipation of financial and operational impacts.

Impact on Fiscal, Foreign Trade, and Operations

In fiscal matters, some benefits exempt for employees are not deductible for the employer. This can affect up to 47% or 53% of ISR (Income Tax) deduction, depending on the case. In foreign trade, companies will need to adjust production processes and controls. They might also require notifications to authorities. Likewise, any change will impact accounting systems, cost of goods sold, and payroll calculations.

An Inevitable Change Requiring Strategic Planning

The reduction of working hours is no longer under debate. It will be implemented progressively in the coming years. Faced with this scenario, companies must act proactively. Lack of preparation can generate higher costs. “Reaction is more expensive than prevention,” concludes Luis Alberto Reséndiz Martínez. The challenge now is to balance employee well-being and economic viability. The entry

first appeared in Líder Empresarial.