Prorated Salary Calculator
Calculate the exact gross pay owed for a partial pay period. Whether someone starts mid-month, leaves before month end, or takes unpaid leave, this prorated salary calculator handles it in seconds using either the working days method or the calendar days method.
Prorated Gross Pay
How to Use This Calculator
Enter the employee's annual salary. Then choose your proration method. Most companies use the working days method, which divides annual salary by 260 (52 weeks times 5 days) to get a daily rate. The calendar days method divides by 365 instead.
Enter how many days the employee actually worked in the partial period, then enter the total days in that period. The calculator shows gross prorated pay, daily rate, full period equivalent, and the amount being deducted.
How Prorated Salary Is Calculated
Working days method:
Daily rate = Annual salary / 260
Prorated pay = Daily rate x Days worked
Example: $78,000 salary. Employee starts on the 10th of a month with 22 working days total and works 13 days. Daily rate = $78,000 / 260 = $300. Pay = $300 x 13 = $3,900.
Calendar days method:
Daily rate = Annual salary / 365
Same employee, calendar method: $78,000 / 365 = $213.70/day x 13 days = $2,778 (lower than working days because weekends are included in the divisor).
Prorated Salary Examples
- New hire starts on the 15th, $96,000/yr, 12 working days in a 22-day month: $96,000 / 260 = $369.23/day. Pay = $369.23 x 12 = $4,430.77.
- Employee resigns on the 8th, $60,000/yr, 6 working days in period: $60,000 / 260 = $230.77/day. Pay = $230.77 x 6 = $1,384.62.
- Unpaid leave deduction, $120,000/yr, 3 days absent: $120,000 / 260 = $461.54/day. Deduction = $461.54 x 3 = $1,384.62.
Frequently Asked Questions
Which method do most UK employers use?
UK employers most commonly use the calendar days method, dividing annual salary by 365. Some use a 260-day working year instead. The method should be stated in the employment contract. If it is not, the calendar method is the safer default for compliance.
How does this work for bi-weekly payroll?
For bi-weekly payroll with a 26-period year, your per-period pay is annual salary / 26. For a partial period, use days worked / 10 (working days in 2 weeks) as the fraction to apply. Enter your annual salary and days worked, and set total period days to 10.
Is prorated salary the same as a partial paycheck?
Yes. Any time an employee works fewer days than the standard pay period, their check is prorated. The terms mean the same thing. The difference is in the calculation method used to determine the daily rate.
How does this compare to rent proration?
The math is similar. Both divide a fixed amount by a time base to get a daily rate. For rental calculations, see our Prorated Rent Calculator, which handles move-in and move-out scenarios.
