Working additional hours can increase an employee’s income, but understanding how overtime payments are calculated is essential. In Mexico, employees have legal protections governing working hours, overtime compensation, and the responsibilities of employers.
Many workers are unsure whether their additional hours should be paid at double or triple their regular hourly wage. Others may struggle to calculate their hourly rate when their employment agreement specifies a monthly salary.
A calculadora de horas extras provides a practical way to estimate overtime compensation using salary information, working schedules, and the number of additional hours completed.
However, accurate calculations require an understanding of Mexico’s Federal Labor Law, known as the Ley Federal del Trabajo (LFT).
The country also introduced important working-time reforms in 2026, establishing a gradual transition from a 48-hour to a 40-hour weekly working limit by 2030.
These changes make it especially important for employees and payroll professionals to distinguish current overtime rules from future requirements.
This guide explains how to calculate overtime pay in Mexico, understand double and triple compensation, use an online calculator, and identify common payroll mistakes.
What Is a Calculadora de Horas Extras?
A calculadora de horas extras is an online calculator that estimates additional compensation earned when an employee works beyond their applicable ordinary working schedule.
It generally uses information such as the employee’s regular salary, daily working hours, and number of overtime hours.
For example, an employee receiving MXN $18,000 per month may need to calculate the additional payment for six hours of overtime during one week.
Instead of preparing several manual calculations, an online tool can estimate the hourly rate and apply the appropriate overtime multiplier.
What Information Does an Overtime Calculator Need?
Common inputs include:
- Monthly, daily, or hourly salary
- Regular working hours per day
- Number of days worked per week
- Total weekly overtime hours
- Applicable overtime compensation rules
The accuracy of the result depends on the information entered.
Why Is Overtime Calculation Important?
Correct overtime calculations help employees understand their compensation and identify possible payroll discrepancies.
Employers and HR teams can also use calculation tools to review payment estimates and support recordkeeping.
However, online calculators provide estimates rather than official legal determinations.
Complex employment arrangements may require individualized review.
1. Understand Mexican Overtime Laws in 2026
Mexico’s Federal Labor Law establishes rules concerning ordinary working hours and additional work.
Understanding the legal framework is important before calculating overtime.
What Counts as Overtime?
Overtime generally refers to time worked beyond an employee’s applicable ordinary working schedule.
The relevant calculation depends on the working arrangement and legal requirements.
Employers and employees should distinguish actual working time from breaks that are not counted as working time under the applicable circumstances.
Double Overtime Pay
For 2026, the first nine overtime hours during a week are generally compensated at twice the ordinary hourly rate.
This is commonly called horas extras dobles.
For example, an employee with a regular hourly rate of MXN $80 would receive MXN $160 for each qualifying double-paid overtime hour.
Triple Overtime Pay
Overtime beyond the nine-hour weekly threshold is generally compensated at three times the ordinary hourly rate under the applicable 2026 rules.
This is called horas extras triples.
An employee earning MXN $80 per hour would therefore receive MXN $240 for each qualifying triple-paid hour.
Working beyond permitted limits can also violate labor rules. Higher compensation does not automatically make excessive overtime lawful.
Relevant Labor Law Provisions
Articles 65 through 68 of the LFT address extraordinary working time and related payments.
The reforms published on May 1, 2026 introduced updated working-time provisions and phased implementation requirements.
Under the applicable 2026 transitional schedule, the ordinary overtime allowance is nine hours per week.
Emergency Situations
Mexican law also contains a special provision for certain genuine emergencies involving imminent danger to people or the workplace.
Hours required under those exceptional circumstances may be treated differently from ordinary overtime.
These situations should not be confused with routine extra work required to complete normal business tasks.
2. Calculate Your Ordinary Hourly Salary
Before estimating overtime compensation, determine the employee’s ordinary hourly rate.
The calculation method depends on how wages are expressed.
Monthly Salary Calculation
An employee paid a fixed monthly salary can use the calculator’s simplified conversion method:
Daily salary = Monthly salary ÷ 30
For example, suppose an employee earns MXN $18,000 per month.
MXN $18,000 ÷ 30 = MXN $600 per day.
If the applicable ordinary working day is eight hours:
MXN $600 ÷ 8 = MXN $75 per hour.
The estimated ordinary hourly wage is therefore MXN $75.
Daily Salary Calculation
An employee receiving MXN $700 per day for an eight-hour ordinary working day could calculate:
MXN $700 ÷ 8 = MXN $87.50 per hour.
This provides the starting point for overtime estimates.
Hourly Salary Calculation
When the employment agreement specifies an hourly wage, the ordinary rate may already be available.
For example, a worker earning MXN $90 per hour can use that amount as the starting hourly rate, subject to any legally required adjustments.
Different Working Shifts
Mexican labor law distinguishes three main types of working schedules.
| Working shift | Ordinary daily duration |
|---|---|
| Day shift (jornada diurna) | 8 hours |
| Night shift (jornada nocturna) | 7 hours |
| Mixed shift (jornada mixta) | 7.5 hours |
The actual classification depends on when the employee works.
Night work and mixed schedules should not automatically use an eight-hour divisor.
Important Payroll Considerations
Variable earnings, commissions, collective agreements, and specific compensation arrangements can make hourly calculations more complicated.
Employees should review their actual payslips and applicable terms rather than relying exclusively on a simplified formula.
3. Calculate Double Overtime Pay
Double overtime compensation applies a multiplier of two to qualifying additional hours.
A straightforward formula is:
Double overtime pay = Ordinary hourly rate × 2 × Qualifying overtime hours
Example: Four Overtime Hours
Suppose an employee earns MXN $75 per hour and works four qualifying overtime hours in one week.
The calculation is:
MXN $75 × 2 × 4 = MXN $600.
The employee’s estimated overtime payment is MXN $600.
This amount is separate from the regular salary already owed.
Example: Six Overtime Hours
Using the same hourly wage:
MXN $75 × 2 × 6 = MXN $900.
The employee would earn an estimated MXN $900 for the six qualifying overtime hours.
Example: Nine Overtime Hours
If the employee works nine qualifying overtime hours during the week:
MXN $75 × 2 × 9 = MXN $1,350.
This is the estimated payment for those hours.
Double Overtime Calculation Table
Assuming an ordinary hourly wage of MXN $75:
| Weekly overtime hours | Overtime payment |
|---|---|
| 1 hour | MXN $150 |
| 2 hours | MXN $300 |
| 4 hours | MXN $600 |
| 6 hours | MXN $900 |
| 9 hours | MXN $1,350 |
This table illustrates ordinary double-rate overtime for 2026.
It does not replace an individualized legal or payroll calculation.
4. Calculate Triple Overtime Pay
Triple overtime applies when additional working time exceeds the relevant weekly threshold.
For 2026, the ordinary double-rate threshold remains nine hours per week.
Triple Overtime Formula
Triple overtime pay = Ordinary hourly rate × 3 × Qualifying triple-rate hours
Consider an employee with an ordinary rate of MXN $75 per hour.
The triple rate is:
MXN $75 × 3 = MXN $225.
Each qualifying triple-paid hour is therefore worth MXN $225.
Example: Ten Overtime Hours
Suppose the employee works ten overtime hours during one week.
The first nine are calculated at double rate:
9 × MXN $150 = MXN $1,350.
The remaining hour is calculated at triple rate:
1 × MXN $225 = MXN $225.
Total estimated overtime pay:
MXN $1,350 + MXN $225 = MXN $1,575.
Example: Twelve Overtime Hours
Suppose the employee works twelve overtime hours.
Double-rate hours:
9 × MXN $150 = MXN $1,350.
Triple-rate hours:
3 × MXN $225 = MXN $675.
Total:
MXN $2,025.
This is a payment illustration, not confirmation that a twelve-hour overtime schedule complies with the ordinary permitted limit in 2026.
Why Weekly Totals Matter
Overtime thresholds should not be reset for every workday.
Employees need to review the overtime hours accumulated during the relevant week.
For example, working four additional hours on Monday and five on Wednesday results in nine overtime hours for the week.
Any further qualifying hours must be evaluated under the applicable overtime rules.
5. Use an Online Calculadora de Horas Extras
Manual calculations can help employees understand their pay, but online tools make it easier to estimate compensation consistently.
CalculadoraDe-Finiquito.com.mx Overtime Tool
Employees and payroll administrators looking for a calculadora de horas extras can explore the free online calculator available through CalculadoraDe-Finiquito.com.mx.
The website offers a dedicated overtime calculator for Mexico.
Its published instructions explain how the tool estimates double and triple overtime payments using salary and working-hour information.
What Does the Calculator Include?
The tool provides input fields for:
- Salary type
- Salary amount
- Daily working schedule
- Hours worked per day
- Working days per week
- Total weekly overtime hours
Users can calculate an estimate and clear the form when they want to begin again.
Step 1: Open the Calculator
Visit the website’s overtime calculation page.
Review the available fields before entering your employment information.
Step 2: Select Your Salary Type
Choose the appropriate salary format.
The tool supports monthly, daily, and hourly wage inputs.
Step 3: Enter Your Salary
Provide the correct salary amount.
For example, if your gross monthly salary is MXN $18,000, enter that amount when monthly salary is selected.
Step 4: Select the Working Schedule
Choose the appropriate daily working hours.
For ordinary daytime work, the calculation may use an eight-hour day.
Night and mixed shifts require different consideration.
Step 5: Enter Weekly Overtime Hours
Provide the total number of qualifying overtime hours for the week.
Do not enter the complete number of regular hours unless the tool specifically requests them.
Step 6: Calculate the Result
Select the calculate option.
The tool estimates the compensation using the configured salary and overtime information.
Step 7: Review the Payment Breakdown
Check the ordinary hourly rate and the estimated amounts attributed to double and triple overtime.
Compare the results with your payroll records.
Does the Calculator Include Ordinary Salary?
No.
The website explicitly states that its overtime calculation displays the additional payment earned for overtime.
It does not add the employee’s normal salary to the result.
Is the Calculator a Legal Payroll Determination?
No.
The tool provides a practical estimate based on its published assumptions.
Employees with disputed overtime, variable earnings, unusual schedules, or contractual benefits should obtain appropriate professional guidance.
Additional Tools Available
The same website also offers calculators for finiquito, liquidación, aguinaldo, vacation benefits, and other Mexican employment-related payments.
These tools address different payroll and termination questions.
6. Understand Mexico’s 40-Hour Workweek Reform
Mexico introduced major working-time reforms in 2026.
The changes establish a gradual reduction in ordinary weekly working hours rather than an immediate nationwide transition to a 40-hour week.
How Does the New Workweek Schedule Operate?
The decree published in the Diario Oficial de la Federación establishes the following implementation schedule.
| Year | Ordinary weekly working hours |
|---|---|
| 2026 | 48 hours |
| 2027 | 46 hours |
| 2028 | 44 hours |
| 2029 | 42 hours |
| 2030 | 40 hours |
The reduction is scheduled to take effect in stages.
Will Employee Salaries Decrease?
The reform expressly provides that the reduction in ordinary working hours must not result in a reduction of employees’ salaries, wages, or employment benefits.
What Happens to Overtime Limits?
The same legislation includes a gradual schedule for permitted ordinary overtime hours.
| Year | Weekly ordinary overtime limit |
|---|---|
| 2026 | 9 hours |
| 2027 | 9 hours |
| 2028 | 10 hours |
| 2029 | 11 hours |
| 2030 | 12 hours |
These figures relate to the phased legal limits and should not be mistaken for permission to impose overtime without appropriate safeguards.
Will Overtime Calculations Change?
The reform also changes how certain ordinary and excess overtime hours are regulated.
Businesses should update payroll systems as the phased provisions become applicable.
A calculator designed around the 2026 nine-hour threshold may need further changes for later years.
What About Employees Under 18?
The constitutional reform prohibits extraordinary working time for workers under eighteen.
Employers should not treat the payment of overtime premiums as permission to disregard that prohibition.
Why This Matters for Payroll
Employers need to distinguish ordinary hours, legally permitted overtime, and hours exceeding the applicable limits.
Accurate time records are essential for payroll and compliance.
7. Verify Overtime Payments and Protect Your Labor Rights
Employees should not assume that every payroll calculation is correct.
Reviewing payslips and maintaining accurate records can help identify possible discrepancies.
Keep a Record of Working Hours
Useful records may include:
- Scheduled working hours
- Actual start and finish times
- Authorized overtime
- Attendance records
- Relevant employment messages
- Payroll receipts
- Employment agreements
These documents may help clarify the hours actually worked.
Compare Your Payslip
Check whether the payroll statement identifies ordinary wages and overtime compensation correctly.
If the overtime amount appears lower than expected, review the calculation before assuming the employer made an error.
Different payroll arrangements may require additional information.
Ask HR for a Breakdown
Employees can request an explanation of the hourly rate, overtime multipliers, and number of hours included.
Clear payroll records benefit both employees and employers.
Understand the Claim Deadline
PROFEDET states that workers generally have one year to claim unpaid overtime compensation, subject to applicable legal rules and circumstances.
Delaying a claim may affect available remedies.
Contact PROFEDET
The Procuraduría Federal de la Defensa del Trabajo provides free labor advice and assistance within its jurisdiction.
Workers can use official PROFEDET contact channels to obtain information about their rights.
Avoid Signing Inaccurate Records
Employees should review attendance and payroll documents before acknowledging information that they believe is incorrect.
Where there is a dispute, seek appropriate advice.
Complete Overtime Calculation Example for Mexico
Consider a hypothetical employee working a daytime schedule.
Employment Information
| Information | Example |
|---|---|
| Monthly salary | MXN $18,000 |
| Daily salary | MXN $600 |
| Ordinary daily hours | 8 |
| Hourly wage | MXN $75 |
| Weekly overtime | 12 hours |
| Double-rate hours | 9 |
| Triple-rate hours | 3 |
Calculate the Hourly Rate
MXN $18,000 ÷ 30 = MXN $600.
MXN $600 ÷ 8 = MXN $75.
Calculate Double Overtime
9 × MXN $75 × 2 = MXN $1,350.
Calculate Triple Overtime
3 × MXN $75 × 3 = MXN $675.
Calculate Total Overtime
MXN $1,350 + MXN $675 = MXN $2,025.
The employee’s estimated overtime compensation would be MXN $2,025 before applicable payroll treatment.
This does not include the ordinary salary.
Because the example exceeds the ordinary permitted overtime limit for 2026, it should not be used as a recommended legal working schedule.
Overtime Pay vs. Other Employment Benefits
Overtime pay is distinct from several other Mexican labor benefits.
| Employment benefit | Main purpose |
|---|---|
| Ordinary salary | Compensation for regular work |
| Overtime pay | Compensation for qualifying extra work |
| Aguinaldo | Statutory annual bonus |
| Prima vacacional | Applicable vacation premium |
| Prima dominical | Premium for qualifying Sunday work |
| Finiquito | Settlement of outstanding employment amounts |
| Liquidación | Additional compensation in qualifying termination cases |
The fact that an employee works on a Sunday or public holiday does not automatically mean the payment is calculated under the ordinary weekly overtime formula.
Different legal provisions may apply.
Employees should evaluate each category separately.
How HR Teams Can Manage Overtime Correctly
Payroll and human resources departments need reliable procedures for recording and compensating additional work.
Establish Clear Working Schedules
Document ordinary working hours and applicable shift arrangements.
Record Actual Working Time
Attendance systems should reflect the time employees actually work.
The 2026 reforms also introduce electronic time-recording obligations, with additional implementation provisions beginning in 2027.
Review Overtime Authorization
Employers should establish appropriate authorization and monitoring procedures.
However, internal approval requirements do not automatically eliminate legal obligations to pay qualifying hours actually worked.
Apply Correct Rates
Payroll teams should distinguish double-paid hours from hours requiring triple compensation.
Update Policies During the Reform
The phased reduction of weekly working hours requires businesses to review staffing, scheduling, and payroll arrangements.
Maintain Clear Documentation
Reliable records may help resolve disagreements and support labor compliance.
Common Mistakes When Calculating Overtime in Mexico
Using Monthly Salary as an Hourly Wage
Monthly compensation must be converted using a suitable calculation method.
Applying Double Pay to Every Extra Hour
Hours exceeding the applicable double-rate threshold may require triple compensation.
Resetting the Overtime Count Every Day
The relevant double and triple calculations depend on weekly totals under the applicable rules.
Ignoring Different Shift Lengths
Day, night, and mixed schedules have different ordinary daily durations.
Adding Ordinary Salary Twice
The linked calculator reports overtime compensation separately.
Do not count the same regular wages again.
Assuming Excessive Overtime Is Permitted
Paying a higher rate does not automatically make work beyond legal limits lawful.
Using Outdated Labor Rules
Mexico’s 2026 reform introduces phased changes through 2030.
Check the applicable year when estimating future payments.
Failing to Keep Attendance Records
Without reliable records, employees may find it harder to resolve overtime disputes.
Calculadora de Horas Extras Checklist
| Requirement | What to verify |
|---|---|
| Monthly salary | Correct gross amount |
| Daily salary | Appropriate calculation |
| Hourly wage | Correct divisor |
| Shift type | Day, night, or mixed |
| Regular schedule | Actual applicable hours |
| Overtime hours | Correct weekly total |
| Double payment | Correct multiplier |
| Triple payment | Correct multiplier |
| Legal limit | Applicable year |
| Payslip | Accurate payment details |
| Records | Attendance documentation |
| Claim period | Relevant legal deadline |
The Future of Overtime Calculation in Mexico
Mexico’s gradual transition toward a 40-hour workweek is expected to influence employment scheduling, payroll software, and workforce management.
Employers will need to account for changing ordinary weekly limits and updated overtime provisions.
Automated payroll systems may help organizations manage these calculations, provided that their rules are updated correctly.
Employees may also benefit from accessible online calculators that explain how their compensation is determined.
However, software should support rather than replace accurate legal interpretation and human review.
The strongest payroll processes will combine transparent calculations, reliable records, and clear communication about employee rights.
Frequently Asked Questions
1. What is a calculadora de horas extras?
A calculadora de horas extras is an online tool that estimates overtime compensation in Mexico using salary, ordinary working hours, and the number of extra hours worked.
2. How are overtime hours paid in Mexico in 2026?
The first nine qualifying overtime hours during a week are generally paid at double the ordinary hourly rate. Hours beyond that threshold generally require triple compensation, although exceeding permitted limits may also violate labor rules.
3. How do I calculate overtime from my monthly salary?
Under a simplified calculation, divide monthly salary by 30 to estimate daily salary. Then divide by the applicable ordinary daily hours to estimate the hourly rate. Apply the appropriate overtime multiplier.
4. Will Mexico’s 40-hour workweek affect overtime calculations?
Yes. The reform establishes a gradual reduction from 48 ordinary weekly hours in 2026 to 40 in 2030 and phases in changes to overtime limits. Payroll calculations should follow the rules applicable to the relevant year.
Conclusion
A calculadora de horas extras helps workers and employers estimate overtime compensation using salary information and applicable Mexican labor rules.
Understanding ordinary hourly wages, double and triple overtime payments, and the 2026 working-time reforms is essential for reliable calculations.
By keeping accurate records, reviewing payslips, and consulting official labor guidance when necessary, employees can make informed decisions about their overtime pay and employment rights.
