How to Calculate Overtime Hours: Complete Guide 2024

Overtime hours are a fundamental right guaranteed by CLT (Consolidação das Leis do Trabalho - Brazilian Labor Law) and represent an important source of additional income for millions of Brazilian workers. Knowing how to correctly calculate overtime pay is essential to ensure you receive what you’re legally owed.

Overtime calculations follow specific rules established by labor legislation, with 50% or 100% premiums added to the normal hourly rate, depending on the situation. Let’s understand all the details.

What are overtime hours

Legal CLT definition

Overtime hours are all time worked beyond the normal workday established in the employment contract or collective agreement. CLT defines that the standard workday is 8 hours daily or 44 hours weekly.

Any minute worked beyond this limit must be compensated as overtime, with the respective legal premiums.

Overtime limits

Brazilian legislation establishes clear limits for overtime:

• Maximum of 2 overtime hours per day
• Total of 10 hours of daily work (8 normal + 2 overtime)
• Weekly limit of 54 hours (44 normal + 10 overtime)

Exceptions exist only in cases of force majeure or to meet urgent service needs, always through agreement or collective bargaining.

How to calculate overtime

Normal hourly rate

The first step is to calculate the normal hourly wage. For monthly salaries, use the formula:

Hourly rate = Monthly salary ÷ 220

The divisor 220 represents the average monthly hours (44 weekly hours × 5 weeks).

Example: Salary of R$ 2,640.00 ÷ 220 = R$ 12.00 per hour

50% and 100% premiums

CLT establishes two main types of premiums:

• 50% for regular overtime (weekdays and Saturdays)
• 100% for Sundays and holidays (when there’s no compensatory day off)

Calculation formula

The basic formula for calculating overtime is:

Overtime rate = Normal hourly rate × (1 + premium percentage)

For 50% premium: Overtime hour = Hourly rate × 1.5

For 100% premium: Overtime hour = Hourly rate × 2.0

Types of premiums

50% overtime

Overtime with 50% premium applies to:

• Work beyond 8 daily hours on weekdays
• Saturday work (when it’s not a normal workday)
• Extended hours during business hours

This is the most common premium and represents the majority of overtime worked in Brazil.

Sunday and holiday 100%

The 100% premium is due when work occurs on:

• Sundays without compensatory day off during the week
• National, state, or municipal holidays
• Weekly paid rest days

In these cases, the overtime rate is double the normal hour.

Night overtime

Night overtime (between 10 PM and 5 AM) receives two simultaneous premiums:

• 20% night premium on the normal hour
• 50% overtime premium

The calculation is: Normal hour × 1.2 (night) × 1.5 (overtime) = Normal hour × 1.8

Practical examples

Different salaries

See how overtime works for different salary ranges:

Variable schedules

For different work schedules, the normal hour calculation changes:

• 6h/day schedule: Salary ÷ 132 (6h × 22 days)
• 8h/day schedule: Salary ÷ 220 (CLT standard)
• 12×36 schedule: Salary ÷ 180 (special regime)

Practical example: Worker with R$ 3,000.00 salary on 6×1 schedule

• Normal hour: R$ 3,000 ÷ 132 = R$ 22.73
• 50% overtime: R$ 22.73 × 1.5 = R$ 34.09

Worker rights

Mandatory payment

The employer cannot refuse to pay properly worked overtime. It’s a legally guaranteed right and its denial constitutes a labor violation.

Overtime must be paid on the payroll of the month it was performed.

Time bank

The time bank is a legal alternative that allows:

• Compensating overtime with time off
• Maximum 1-year deadline for compensation
• Need for individual or collective agreement

If not compensated within the deadline, hours must be paid with legal premiums.

Regular overtime

When overtime becomes regular (more than 1 consecutive year), it:

• Integrates into salary for all purposes
• Affects 13th salary, vacation pay, and FGTS (severance fund)
• Generates impacts on termination benefits

Overtime calculator

To simplify your calculations, use our free overtime calculator. The tool considers all legal premiums and provides accurate values for different situations.

The calculator allows you to simulate:

• Different salary amounts
• Various premium types (50%, 100%, night)
• Variable work schedules
• Monthly and annual overtime calculations

With this tool, you can verify if your overtime calculations are correct and ensure you’re receiving the legally owed amount.

Frequently Asked Questions

How do I calculate overtime pay?

Divide the monthly salary by 220 to get the normal hourly rate. Then multiply by 1.5 (50% premium) or 2.0 (100% premium). Example: R$ 2,200 salary ÷ 220 = R$ 10/hour. 50% overtime = R$ 10 × 1.5 = R$ 15.

What’s the minimum overtime premium?

The minimum premium is 50% above the normal hour, as established by the Federal Constitution. Collective agreements may set higher percentages, but never lower than 50%.

How many overtime hours can I work per day?

The legal limit is 2 overtime hours per day, totaling a maximum of 10 hours of daily work. This limit can only be exceeded in cases of force majeure or urgent service needs.

Do Saturday overtime hours have 50% or 100% premium?

It depends on the schedule. If you work Monday to Friday, Saturday has a 50% premium. If your schedule normally includes Saturdays, hours beyond the daily 8 also have a 50% premium.

Can I refuse to work overtime?

Generally, yes. Overtime depends on agreement between employee and employer. Exceptions occur only in cases of force majeure, urgent service needs, or when specified in the employment contract.

How does the time bank work?

The time bank allows compensating overtime with equivalent time off, without cash payment. The maximum compensation period is 1 year. If not compensated, they must be paid with legal premiums.

Does overtime affect vacation and 13th salary?

Yes. When overtime is regular (worked for more than 1 consecutive year), it integrates into salary and affects vacation pay, 13th salary, FGTS, and other employment benefits.