Overtime Pay Calculator
Calculate your overtime pay at 1.5× the hourly rate under the Shop & Office Employees Act.
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Overtime pay for the month
Verified: July 2026 · Under the Shop & Office Employees Act, the standard OT rate is (monthly salary ÷ 240) × 1.5 per hour. Normal hours are 8/day, 45/week, with overtime capped at 12 hours per week. Wages Boards or your contract may set higher rates. Estimate only.
Frequently asked questions
How is overtime calculated in Sri Lanka?
Under the Shop & Office Employees Act, overtime is paid at 1.5× the normal hourly rate, where the hourly rate is your monthly salary divided by 240. Normal hours are 8 per day / 45 per week, and overtime is capped at 12 hours per week.
Is the 240 divisor always used?
It is the standard for monthly-paid shop and office employees (8 hours × ~30 days). Some Wages Boards or contracts specify different rates — check your terms of employment.
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