STPS Accelerates 40-Hour Workweek Negotiation: Unions Push for Tax Effects and Variable Scheme Treatment Review

Web Editor

October 21, 2025

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Background on Key Participants

The Secretaría del Trabajo y Previsión Social (STPS) has intensified negotiations in recent days to reduce the workweek from 48 to 40 hours, engaging in specialized and reduced-format meetings with labor unions and business organizations.

Notable participants in these discussions include the Confederación de Trabajadores de México (CTM) and the Unión Nacional de Trabajadores (UNT), along with independent and guild unions.

Key Issues in Negotiation

The primary focus of these negotiations revolves around the regional and sector-specific impacts of the workweek reduction, especially in industries with irregular or variable working patterns.

  • Tax Treatment for Reduced Workweek: A significant concern is the tax implications associated with a shorter workweek, as variable-income workers (commission-based employees, contract workers, and agricultural laborers) face income tax withholdings that may discourage formal employment in certain northern regions.
  • Variable Income Sectors: Labor unions have raised concerns that without a review of calculation criteria and tax tables, the benefits of a shorter workweek could be negated for workers with fluctuating incomes.
  • Balancing Labor Well-being and Productivity: Negotiators emphasize the need for a balanced framework that supports both worker welfare and productive operations, ensuring that reducing working hours does not lead to new explicit or implicit burdens.

Additional Negotiation Points

Other crucial topics under consideration include:

  • Adjustments in Shifts and Rotation: Ensuring that any changes to work schedules are fair and manageable for employees.
  • Impact on Small and Medium Enterprises (SMEs) and Supplier-Industry Sectors: Assessing the effects on businesses that may struggle to adapt to the new workweek structure.
  • Transition Mechanisms for Areas with Limited Feasibility: Developing strategies to implement changes gradually in regions where immediate adjustments are not practical.

Progress and Timeline

Although no final document has been released by the STPS, the rapid pace of these meetings suggests that the Mexican government aims to present a consensus-based proposal by late November.

Key Questions and Answers

  • What is the main objective of these negotiations? The primary goal is to reduce the workweek from 48 to 40 hours while addressing regional and sector-specific impacts, especially in industries with irregular or variable working patterns.
  • Who are the key participants in these negotiations? The main parties involved are the Confederación de Trabajadores de México (CTM), the Unión Nacional de Trabajadores (UNT), along with independent and guild unions, as well as business organizations representing various industries.
  • What are the main concerns regarding tax treatment for a reduced workweek? Variable-income workers face income tax withholdings that may discourage formal employment, particularly in certain northern regions. Labor unions are concerned that without a review of tax tables and calculation criteria, the benefits of a shorter workweek could be negated.
  • What other topics are being discussed during these negotiations? Additional points of discussion include adjustments in shifts and rotation, the impact on small and medium enterprises (SMEs) and supplier-industry sectors, and transition mechanisms for areas where immediate changes are not feasible.
  • When is the expected timeline for a proposed solution? The Mexican government aims to present a consensus-based proposal by late November.