The 40-Hour Workweek and Your Cleaning Contract: What Changes, When, and How to Adjust Your Budget

Introduction

*The reduction is gradual and begins to take effect in 2027. Reviewing your contract now costs far less than renegotiating at the last minute.*

Summary

On May 1, 2026, the decree reforming the Ley Federal del Trabajo (LFT) was published in the Diario Oficial de la Federación (DOF) to reduce the maximum standard workweek to 40 hours. This will occur gradually: 48 hours in 2026, 46 in 2027, 44 in 2028, 42 in 2029, and 40 in 2030. The law also establishes that this reduction cannot lead to a decrease in wages, salaries, or benefits. For a commercial cleaning contract, this means that maintaining the same facility coverage will eventually require more person-hours. This guide explains what the decree mandates, how it impacts coverage and budgets, which contract clauses should be reviewed, and what questions to ask your service provider, complete with a review checklist.

The short answer

If your cleaning service currently covers operating hours using personnel working near the statutory maximum, each annual reduction in maximum hours means you will need more person-time to maintain the same coverage—or you will need to modify your coverage. There is no one-size-fits-all formula to predict how much your price will change: it depends on how your service is structured, how hours are currently compensated, and what costs the provider decides to absorb versus pass through. What you can do immediately is map your current coverage, decide which strategy best fits your facility, and reflect those terms in your contract before 2027.

What the decree says

The decree was published in the afternoon edition of the DOF on May 1, 2026, and took effect that same day. The key points relevant to service contracts are:

• Maximum workweek (art. 59 LFT): "The maximum duration of the standard work shift shall be forty hours per week."
• Phase-in schedule (transitorio segundo): Effective January 1 of each year: 48 hours in 2026, 46 in 2027, 44 in 2028, 42 in 2029, and 40 in 2030.
• Daily shifts (art. 61): Eight hours for day shifts, seven for night shifts, and seven and a half for mixed shifts.
• Shift distribution (art. 58, second paragraph, new): Working hours may be distributed by mutual agreement between employers and employees.
• Overtime (arts. 66 and 68): The law establishes caps and premium pay rates. These caps are also phased in gradually (transitorio cuarto). If your operation frequently relies on overtime, have your labor counsel verify how the annual caps apply.
• Rest days (art. 69): For every six days of work, employees must receive at least one full rest day with full pay.
• Wages (transitorio séptimo): Under no circumstances may the reduction result in a decrease in wages, salaries, or benefits.
• Shift tracking (art. 132, section XXXIV): Employers must maintain an electronic log of each worker's hours. This is a distinct requirement, covered in our guide on electronic shift tracking for cleaning providers.

The decree does not alter outsourcing or specialized services frameworks: it does not modify the rules of REPSE. The cleaning staff remains employed by the service provider, and statutory working-hour obligations rest with them. However, as a client contracting specialized services, you may face joint and several liability for a contractor's labor non-compliance (LFT, art. 14). Consequently, it is in your best interest to confirm how your vendor is handling these changes.

From the schedule to coverage

The following example is simple arithmetic, not a quote or a price forecast: consider a post currently covered by one person working the statutory maximum of 48 hours per week. To maintain those same 48 hours of service coverage, the required person-time increases as follows:

Assumptions for this example: identical on-site coverage, no reduction in operating hours, and no wage decreases (as required by transitorio séptimo). In practice, your facility may use different operating models (part-time shifts, staff already working below the legal maximum, or rotating shifts), which will yield different results. Run the numbers using your actual shift structure.

As a general rule: the closer a contract is tied to the maximum legal workweek per cleaner, the more noticeable the impact; contracts with built-in scheduling flexibility will experience less disruption. Our guide on commercial cleaning service pricing outlines standard cost breakdowns so you can pinpoint where adjustments will hit.

What you can do: four approaches

There is no universally correct path. The priority is to make data-driven decisions and formalize amendments in writing, rather than letting changes happen by default (such as unannounced headcount reductions mid-shift).

Clauses worth reviewing

1. Term and statutory adjustment mechanisms. If you have a multi-year agreement, how are legislative labor changes addressed? A review clause establishing clear criteria, notice periods, and timelines prevents disputes. Final wording should be reviewed by legal counsel.
2. Detailed scope of coverage. Ensure the contract defines operational parameters (operating hours, zones, approximate staffing levels) rather than just a flat monthly fee. See essential cleaning contract clauses.
3. Cost absorption vs. pass-through. Define who absorbs the adjustment and when it takes effect. An objective adjustment formula is far safer than an open-ended "to be discussed later" provision.
4. Relief staff and rest days. Clarify how mandatory rest days and general absences are backfilled; see cleaning staff, turnover, and shift relief.
5. Overtime management. Ensure overtime is not treated as the default solution to bridge coverage gaps, and mandate prior client notification whenever overtime is used.
6. KPIs and reporting. If you alter schedules or headcounts, you must objectively verify that hygiene standards hold up; see KPI-based cleaning supervision.
7. Proof of labor compliance. Stipulate what documentation the vendor must provide (and at what frequency) to verify compliance with LFT obligations.

Questions to ask your provider

• How are you planning to comply with the 2027–2030 phase-in schedule on our account, and what operational adjustments will impact us?
• Will your proposed adjustments involve additional person-hours, schedule changes, or scope reductions? How is that cost broken down?
• What percentage of our current service relies on overtime?
• How will mandatory rest days and employee relief shifts be scheduled and covered?
• When will you present a formal transition proposal, what data will support it, and what is your target effective date?
• How will you provide auditable evidence of ongoing labor compliance for on-site personnel?

If you are sourcing new vendors, ask every bidder the same questions and score them using a cleaning proposal evaluation matrix. When issuing new tenders, incorporate the phase-in schedule directly into your request for quotation (RFQ).

Common mistakes

1. Waiting until 2030 or waiting for the provider to bring it up. The operational impact begins in 2027.
2. Accepting rate increases without an itemized breakdown. Insist on seeing what is changing: person-hours, schedules, or scope.
3. Quietly trimming coverage. Informal headcount cuts show up quickly in facility cleanliness, even if the contract remains unchanged.
4. Assuming the reduction alters REPSE rules. The decree does not change specialized services registration requirements.
5. Relying on overtime as a permanent fix without accounting for legal caps and penalty rates.
6. Comparing RFP proposals built on different timelines. One vendor may price in the phased changes while another quotes a baseline that will immediately spike.
7. Overlooking long-term agreements that lack a statutory change review clause.

Warnings

This article does not constitute legal advice. Overtime caps, shift distribution limits, and cost pass-through options depend heavily on your specific operational context. Consult qualified labor counsel.

The arithmetic example provided is not a commercial quote or a pricing guarantee.

Verify official sources. This analysis is based on the decree text published by the Cámara de Diputados; always consult the official DOF publication before taking formal legal action.

Tool: contract review checklist

Service mapping

• Documented shift hours and days currently covered, broken down by area
• Assigned headcount per shift (approximate numbers)
• Current overtime utilization: where is it used, and how many hours?
• Coverage mechanisms for statutory rest days and unplanned absences

Operational decisions

• Strategic approach selected by area (maintain, redistribute, reduce, or combine)
• Critical operations identified that cannot accept coverage cuts
• Transition timeline mapped for 2027–2030

Contractual terms

• Review clause for statutory and labor law changes
• Clear cost breakdown for any proposed adjustment (hours, schedule, or scope)
• Service level KPIs to monitor cleaning standards following adjustments
• Routine schedule for vendor submission of labor compliance documentation

Conclusion

The 40-hour workweek reform is a five-year transition, not an overnight shock. What keeps it manageable is mapping your coverage early, selecting a strategy backed by facility data, and executing written contract amendments before unexpected adjustments appear on your invoice.

Next step

Map your facility's coverage using this checklist and request a 2027 transition plan from your current contractor or prospective bidders. If you are preparing an upcoming tender, review our guide to hiring institutional cleaning services. To request a formal service proposal, visit our quote request page.