Brazil's lower house has approved a constitutional amendment establishing a 40-hour, five-day workweek, eliminating the nation's current six-day work structure without reducing pay for an estimated 37 million workers. The move sends the proposal to the Senate, where further changes remain possible before final implementation.
The amendment represents a significant intervention in labor markets at a moment when businesses are already navigating economic pressures. Currently, Brazilian workers complete five eight-hour days and four hours on a sixth day, totaling 44 hours weekly. The new framework will guarantee two consecutive 24-hour rest days each week, preferably Saturdays and Sundays.
The Political Calculation
President Luiz Inácio Lula da Silva sponsored the initiative and has repeatedly promoted it ahead of presidential elections in October. Paulo Pimenta, Brazil's government whip in the lower house, framed the measure in terms of fairness: "People who have this workweek from Monday to Saturday are the ones that have to work the hardest and are paid the least. We need to be brave and do justice."
The amendment proved popular enough that many opposition lawmakers voted in favor after months of constituent pressure, though skepticism persists within business and conservative circles. Kim Kataguiri, an opposition voice, cautioned against the timeline: "I don't care this is an election year. I think we need to be responsible. This will be a problem for many companies. We are doing this in a rush and workers should know they might end up worse than they are now if business leaders stop hiring."
Transition Timeline and Business Concerns
Negotiators secured a 14-month adaptation period for businesses to restructure operations and payroll systems—a compromise that fell short of business demands for a gradual 10-year transition. Leo Prates, who drafted the amendment, defended the approach: "This was built with a lot of responsibility, thinking about workers and families in Brazil. We need to accomplish this for the Brazilian people."
The business sector remains highly critical of the measure, viewing it as a mandate that could force hiring freezes, automation acceleration, or reduced employment opportunities rather than improved working conditions. The compressed timeline compounds these concerns.
Regional Context and Divergent Approaches
Brazil joins other Latin American nations in reducing working hours. Mexico's lawmakers approved a proposal in February by President Claudia Sheinbaum to trim the 48-hour workweek, with working hours shortened gradually to 40 hours by 2030. Chile passed the so-called 40-Hour Law in 2023, which reduced its workweek to 40 hours as of last year, applying to all workers under Chile's Labor Code without reducing pay.
Argentina has taken the opposite course under libertarian President Javier Milei. A labor overhaul package passed earlier this year extends the maximum workday from eight to 12 hours and scraps overtime pay, among other measures that Argentine labor unions say favor companies over employees.
Brazil's main electoral rival to Lula, Sen. Flávio Bolsonaro, has proposed an alternative: replacing the current workweek system with a more flexible payment-by-the-hour strategy, which has so far gained traction primarily among some business leaders seeking wage flexibility.
The Senate has not yet scheduled its vote and retains authority to modify the amendment before it moves to Lula for final constitutional approval.
Why This Matters:
From a fiscal and market perspective, Brazil's decision to mandate a 10-hour weekly reduction without corresponding pay cuts creates significant cost pressures for employers, particularly small and medium-sized businesses with limited operational flexibility. The compressed 14-month implementation timeline—half the duration many business leaders requested—restricts the ability of firms to gradually adjust staffing, pricing, or automation strategies. Labor economists across the ideological spectrum acknowledge that mandated wage costs without productivity gains typically reduce hiring or accelerate job displacement. The contrast with Argentina's deregulatory approach illustrates the divergent regional philosophies on labor market intervention. Policymakers must weigh whether the intended benefit to existing workers—guaranteed rest days and reduced hours—will materialize if employers respond by reducing headcount or opportunity for new entrants to the workforce.