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Prorated Salary Calculator
Starting or leaving a job partway through a month or year? Enter the annual salary and the dates you are paid for, choose calendar days or working days, and see the prorated pay, the daily rate and a month-by-month breakdown.
Last updated:
$
Enter the period as
Optional; deducted at the daily rate.
e.g. 260 working days a year, or 21–23 in a month.
Enter your values to see the result.
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How to use the Prorated Salary Calculator
- Enter the annual salary and choose whether to prorate against the year or each month.
- Enter the first and last paid day, or switch to a simple number of days.
- Choose calendar days or working days and your work week.
- Add unpaid days off if there are any.
- Calculate and check the breakdown table; the other method is shown for comparison.
Prorated salary formulas
- By month, calendar days: (annual salary ÷ 12) × days paid ÷ days in the month
- By month, working days: (annual salary ÷ 12) × working days paid ÷ working days in the month
- By year, calendar days: annual salary × days paid ÷ 365 (366 in a leap year)
- By year, working days: annual salary × working days paid ÷ working days in the year (260–262 for Mon–Fri)
When a period spans several months, each month is prorated on its own and the results are added together.
Daily rates for common salaries
| Annual salary | Per calendar day (÷ 365) | Per working day (÷ 260) | Per working day, 22-day month |
|---|---|---|---|
| $40,000 | $109.59 | $153.85 | $151.52 |
| $50,000 | $136.99 | $192.31 | $189.39 |
| $60,000 | $164.38 | $230.77 | $227.27 |
| $72,000 | $197.26 | $276.92 | $272.73 |
| $85,000 | $232.88 | $326.92 | $321.97 |
| $100,000 | $273.97 | $384.62 | $378.79 |
| $120,000 | $328.77 | $461.54 | $454.55 |
When proration is used
- First paycheck after starting mid-month.
- Final paycheck when leaving before the end of a pay period.
- Unpaid leave or a change in salary partway through a month.
- Part-year bonuses that are paid in proportion to time employed.
To count weekdays between two dates on their own, use the business days calculator.
Frequently asked questions
How do I calculate prorated salary?
Prorated salary = full pay for the period × days paid ÷ days in the period. For a $72,000 salary prorated by month, a month with 22 working days pays $6,000 ÷ 22 = $272.73 per working day, so 12 working days earn $3,272.73.
Calendar days or working days: which is correct?
Both are used. Calendar-day proration divides by all days in the month or year (28–31, or 365/366), while working-day proration divides by working days only. Employment contracts, payroll systems and local law decide which applies, so check yours. The calculator shows both.
Should I prorate by month or by year?
Many payroll systems prorate the monthly salary for a partial month. Others use an annual daily rate (salary ÷ 260 working days or ÷ 365 days) for every day. The results differ slightly because months have different numbers of days.
How many working days are in a year?
A Monday-to-Friday year has 260 or 261 weekdays (262 in some leap years), before public holidays. With 10 or so paid holidays, around 250 days are actually worked, but holidays are usually paid, so they still count for proration.
Are public holidays counted?
This calculator counts every weekday in your work week, which treats public holidays as paid days. If holidays in your period are unpaid, enter them as unpaid days off.
Does this show take-home pay?
No. It shows gross prorated pay. Taxes and deductions are applied by payroll afterwards; use the paycheck calculator for an estimate.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.
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