What Is 3x Overtime Pay?
3x overtime pay is compensation for overtime work performed on a holiday, paid at a rate of 3 times the normal hourly wage under Section 63 of the Labour Protection Act B.E. 2541 (1998). For example, an employee earning THB 125 per hour who works 2 hours of overtime on a holiday will receive 125 × 3 × 2 = THB 750
What Does the Law Say About 3x Overtime Pay?
The Labour Protection Act B.E. 2541 (1998) provides that: “Section 63 stipulates that if an employer requires an employee to work overtime on a holiday, the employer must pay holiday overtime at a rate of no less than 3 times the employee’s hourly wage on a normal working day for the number of overtime hours worked, or no less than 3 times the wage per unit on a normal working day for employees paid based on output, calculated according to the amount of work completed.”
How to Calculate 3x Overtime Pay (With Examples)
There are two methods for calculating 3x overtime pay: one for monthly salaried employees and one for daily wage employees. The calculation steps are as follows.
How to Calculate 3x Overtime Pay for Monthly Salaried Employees
The steps for calculating 3x overtime pay for monthly salaried employees are:

- Calculate the daily wage: Monthly salary ÷ Number of working days in the month
- Calculate the hourly wage: Daily wage ÷ Number of working hours per day
- Calculate the 3x overtime rate per hour: Hourly wage x 3x overtime
- Calculate the total 3x overtime pay: 3x overtime rate per hour × Overtime hours worked
Example
Mr. Somchai is a monthly salaried employee earning THB 30,000 per month. He works 2 hours of overtime on a Sunday holiday. His 3x overtime pay is calculated as follows:
- Calculate the daily wage: THB 30,000 ÷ 30 days = THB 1,000/day
- Calculate the hourly wage: THB 1,000 ÷ 8 hours = THB 125/hour
- Calculate the 3x overtime rate per hour: THB 125 × 3 = THB 375
- Calculate the total 3x overtime pay: THB 375 × 2 hours = THB 750
Therefore, Mr. Somchai will receive THB 750 in 3x overtime pay for working overtime on a holiday.
How to Calculate 3x Overtime Pay for Daily Wage Employees
The steps for calculating 3x overtime pay for daily wage employees are:

- Calculate the hourly wage: Daily wage ÷ Number of working hours per day
- Calculate the 3x overtime rate per hour: Hourly wage x 3x overtime
- Calculate the total 3x overtime pay: 3x overtime rate per hour × Overtime hours worked
Example
Mrs. Somporn is a daily wage employee earning THB 700 per day. She works 2 hours of overtime on a Sunday holiday. Her 3x overtime pay is calculated as follows:
- Calculate the hourly wage: THB 750 ÷ 8 hours = THB 93.75/hour
- Calculate the 3x overtime rate per hour: THB 93.75 × 3 = THB 281.75
- Calculate the total 3x overtime pay: THB 281.75 × 2 hours = THB 562.50
Therefore, Mrs. Somporn will receive THB 562.50 in 3x overtime pay for working overtime on a holiday.
See formulas and examples for all types of overtime pay, including 1.5x and 2x overtime, at How to Calculate Overtime Pay Under Thai Labour Law
Summary: What Is 3x Overtime Pay and How Is It Calculated?
“3x overtime pay” applies when an employee works overtime on a holiday. Overtime work on a holiday must be performed with the employee’s consent.
There are two calculation methods. For monthly salaried employees: [(Monthly salary ÷ Number of working days in the month) ÷ Number of working hours per day] × 3 × Overtime hours worked. For daily wage employees: (Daily wage ÷ Number of working hours per day) × 3 × Overtime hours worked.
FAQ: Frequently Asked Questions About 3x Overtime Pay
Q: How is 3x overtime different from regular overtime?
Q: Does overtime on a public holiday qualify for 3x overtime pay?
Q: Can an employer force an employee to work 3x overtime?
Q: How is 3x overtime calculated if an employee works less than one full hour?
Q: Can HumanSoft payroll software calculate 3x overtime automatically?
Read More Articles You May Be Interested In:
- 2x Overtime Pay: What Is It and How Do You Calculate 2x Overtime Pay?
- Complete Guide to Overtime (OT) Calculation for Every Type of Overtime
- 1.5x Overtime Pay: What Is It and How Do You Calculate 1.5x Overtime Pay?
- How to Calculate Daily and Monthly Overtime Under Thai Labour Regulations
- HR Good to Know: Thai Labour Law Prohibits Forcing Employees to Work Overtime
- What Are Overtime Pay and Holiday Pay, and How Are They Compensated?
