Changing a work schedule from 5x2 to 6x1: why the unilateral change triggered constructive dismissal

The 6x1 schedule, six days worked to one day off, is back at the centre of public debate in Brazil. While the legislative discussion advances, the courts are already deciding concrete cases, and what is being judged there is not the legitimacy of the regime in the abstract. It is how the company arrived at it.

A recent decision by the São Paulo labour courts illustrates that difference well, and offers three distinct lessons for anyone managing working time.

The case

A cleaning agent was hired on 24 June 2022 under a 5x2 regime, five days worked and two days off. After almost four years on that schedule, the company changed the regime to 6x1, leaving a single day off per week.

The worker, a single mother of two children, formally notified the constructive termination of her contract and stopped attending work. The company contested the claim, alleging job abandonment.

The 3rd Labour Court of the South Zone of São Paulo recognised the constructive dismissal, rejected the abandonment argument and ordered the company to pay severance entitlements, delivering the employment documentation within ten days of the decision becoming final. The case is number 1000642-91.2026.5.02.0703, decided by Judge Victor Pedroti Moraes.

This is a first-instance decision, pending judgment of an ordinary appeal.

What the decision applied

The core of the ruling is article 468 of the Brazilian Labor Code (CLT), which permits changes to the conditions of an individual employment contract only by mutual consent, and even then only where no direct or indirect detriment to the employee results.

It is worth stressing that the two requirements are cumulative. Employee agreement is not enough if the change causes detriment. And the change being harmless in the company's view is not enough if there was no agreement.

A condition applied continuously over a long period ceases to be a mere operational circumstance and becomes part of the contract. Almost four years on a 5x2 schedule produce precisely that effect. From that point on, changing it means changing the contract.

Breach of that guarantee opens to the employee the route of article 483 of the CLT, which permits constructive termination where the employer fails to comply with contractual obligations. It is termination attributable to the employer, with the same economic effects as a dismissal without cause.

The lawfulness of the regime and the lawfulness of imposing it

Two things that are routinely confused in day-to-day management deserve to be separated.

The 6x1 regime is lawful. Article 67 of the CLT guarantees every employee a weekly rest of twenty-four consecutive hours, and article 7, item XV, of the Federal Constitution guarantees paid weekly rest, preferably on Sundays. A schedule of six working days to one day off fits within that design.

What the decision rejected was the path taken to get there. A company that hires on a 5x2 basis, maintains the regime for years and then migrates to 6x1 by administrative decision is altering a contractual clause without the required consent, and with evident detriment to the employee, who loses a day of rest each week.

The practical conclusion is that arguments about the legality of the schedule do not assist the company. What is examined is the legality of the change.

The defence error that made the case worse

There is a second point, procedural in nature, that deserves attention.

The company alleged job abandonment. The argument failed because the employee had formally notified the constructive termination before ceasing to attend work.

Job abandonment requires two elements, prolonged absence and the intention not to return. Where a formal notice of constructive termination is on the record, the second element falls away immediately, because the absence has a declared cause.

Arguing abandonment in that scenario produces a side effect that goes unnoticed. The argument signals to the court that the company was not following its own contract, and it weakens the rest of the defence. In disciplinary matters, choosing the legal basis is a strategic decision, not a formality.

The gender perspective in working time analysis

The third point is the newest in day-to-day management, and the one requiring the most concrete adaptation.

The decision applied the National Council of Justice Protocol for Judgment with a Gender Perspective and invoked article 227 of the Federal Constitution, which assigns to the family, society and the State the duty to secure children's rights as a priority. It recorded that responsibility for the care of children falls disproportionately on women.

That protocol is not an isolated recommendation. National Council of Justice Resolution 492, of 17 March 2023, consolidated the policy of adopting a gender perspective in judgments and established mandatory training for judges on the subject, with a dedicated monitoring committee.

For the employer, the consequence is concrete. A formally neutral change to working time may produce an unequal impact on employees with caregiving responsibilities, and that impact has become part of the judicial analysis. Removing the second day off from someone raising children alone is not read as identical to the same measure applied to someone without that burden.

How to change a schedule without creating liability

The route exists, and it is more predictable than the alternative:

• Collective bargaining as the primary path. Article 611-A, item I, of the CLT recognises the prevalence of negotiated terms on working time arrangements, within constitutional limits. Scheduling is a matter for a collective instrument, not for an internal memo.
• Formalised individual consent where the change reaches existing contracts. Acceptance must be express, documented and free, and even then remains subject to the no-detriment test of article 468.
• Genuine compensation for what was removed. Where the new schedule suppresses rest, the design must return something equivalent, whether in time off or in an economic counterpart set out in a collective instrument.
• Documented impact assessment. Recording that the company examined the effect of the change on employees with caregiving responsibilities, and offered an alternative to those unable to absorb it, builds the evidence that was missing in this case.
• Transition with notice and in writing. An abrupt change reinforces the reading of unilateral imposition.
• Correct disciplinary characterisation. Faced with a notice of constructive termination, the appropriate response is to investigate the alleged facts, not to allege abandonment.

The firm's practice

Structuring changes to working time and schedules, conducting collective bargaining on these matters, assessing risk in advance of regime changes and defending companies in claims disputing constructive dismissal form part of the firm's corporate employment law practice. Each case, however, depends on its own circumstances, facts and documents.

Conclusion

The case does not decide whether the 6x1 schedule should exist. It decides something more immediate for the company, which is the limit of the power to unilaterally change what has already become part of the contract.

Four years on a schedule make it a contractual condition. From then on, changing it requires consent and the absence of detriment, cumulatively, and the absence of those two elements converts the change into a breach of contract by the company itself.

Add to that a poorly chosen defence and the absence of any record of the measure's impact, and the outcome stops being a surprise. Changing a schedule means changing a contract, and a contract is not changed by memo.

Reference basis for review

• CLT, article 468 (changes to the conditions of an individual contract only by mutual consent and without detriment to the employee).
• CLT, article 483 (grounds for constructive termination, including the employer's failure to comply with contractual obligations).
• CLT, article 67 (weekly rest of twenty-four consecutive hours).
• CLT, article 611-A, item I (prevalence of negotiated terms on working time arrangements, within constitutional limits).
• Federal Constitution, article 7, item XV (paid weekly rest, preferably on Sundays).
• Federal Constitution, article 227 (priority of the rights of children and adolescents).
• National Council of Justice Resolution 492, of 17 March 2023, which consolidated the adoption of a gender perspective in judgments and established mandatory training for judges on the subject.
• National Council of Justice Protocol for Judgment with a Gender Perspective.
• Judgment of the 3rd Labour Court of the South Zone of São Paulo, case 1000642-91.2026.5.02.0703, Judge Victor Pedroti Moraes, first-instance decision pending an ordinary appeal.
• Brazilian Bar Association Rule 205/2021, to preserve the informational character of the content.

Informational content only. This does not constitute legal advice, an offer of services or a promise of results. Any concrete assessment depends on the facts, the documents and the context of each case.