Salary Proration Calculator
Enter your annual salary, pay period, and actual work dates to get the exact prorated pay for any partial period.
Proration Inputs
$
Pay Period Window
Actual Work Dates
Both dates inclusive. For a full-period worker, match the period window above.
Fill in the salary and date details, then click Calculate Prorated Pay.
Prorated Pay
$0.00
for this partial period
Days in Period
—
Days Worked
—
Proration Ratio
—
Pay Breakdown
| Annual Salary | $0 |
| Full Period Pay | $0 |
| Total Working Days in Period | 0 |
| Days Actually Worked | 0 |
| Prorated Pay | $0 |
Period Coverage
Days Worked
Days Not Worked
Summary
Enter your annual salary, pay period, and actual work dates to get the exact prorated pay for any partial period.
How it works
- Enter your annual (or monthly) gross salary.
- Select your pay period convention: monthly, semi-monthly, bi-weekly, or weekly.
- Enter the pay period start and end dates.
- Enter the date you actually started (or stopped) working within that period.
- Choose the working-days convention — calendar days, weekdays (Mon–Fri), or custom days per year.
- The calculator divides your period salary by total working days in the period, then multiplies by the days you actually worked.
Use cases
- Calculating first-paycheck pay when a new employee starts mid-period.
- Computing a final paycheck for an employee who leaves before the end of a pay period.
- Estimating prorated pay when a pay schedule changes.
- Verifying HR payroll figures for partial months.
- Budgeting salary costs for new hires joining at different points in the month.
Frequently Asked Questions
Last updated: 2026-06-25 ·
Reviewed by Nham Vu