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Prorated Salary Calculator
Calculate how much salary you should receive for a partial pay period — for example, a new hire’s first month or a mid-period departure.
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What is prorated salary?
Prorated salary is the portion of a full pay period’s salary owed to an employee who only worked part of that period, such as a new hire starting mid-month or an employee leaving before the period ends.
The formula
Prorated Pay = (Annual Salary / 12 / Working Days in Period) × Days Actually Worked. This calculates a daily rate based on the specific pay period’s working days, then multiplies by days actually worked.
This calculator is for general payroll-planning education; actual proration methods can vary by employer policy.
Last reviewed August 2026