Prorated Salary Calculator

How prorated pay is worked out

When you don't work a full pay period — because you just started, or you're leaving mid-cycle — your pay is prorated based on the days you actually worked. The formula is straightforward: prorated pay = (monthly salary ÷ total days in the period) × days worked. This gives you a daily rate specific to that pay period, then multiplies it by however many days you were actually on payroll.

"Total days in the period" is whatever your employer treats as the denominator for that cycle — commonly the number of working days in the month, or the number of calendar days in a semi-monthly cutoff. Ask HR or check your payslip if you're unsure which figure they use, since it directly changes the result.

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