Partial-month salary for joiners/leavers. The Prorated Salary Calculator takes monthly salary, days worked (or payable) in the month, days in the month and returns prorated salary plus per-day salary, unpaid portion. Results update as you type, and the formula is shown under the result so you can repeat it in your own spreadsheet.
Payroll figures should follow the rules in your contracts and local law. Where a rule differs between states or countries, adjust the inputs; the calculator shows its assumptions so you can check them against your own policy. Use the worked example below to check the maths against your own figures.
How the Prorated Salary Calculator works
Joiners and leavers are paid for the days of the month they were employed. Some payrolls use calendar days and some use working days; pick the convention in your policy.
Worked example
With the example values (monthly salary of $60,000, days worked (or payable) in the month of 12, days in the month of 30), the prorated salary is $24,000.00; per-day salary $2,000.00, unpaid portion $36,000.00. Change any figure above and the result updates immediately; use Copy results to paste the summary into a note or email.
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Frequently Asked Questions
How is prorated salary calculated?
prorated salary = monthly salary ÷ days in month × days worked.
Which figures do I need?
Monthly salary, days worked (or payable) in the month, days in the month. Take them from the same period and the same set of accounts or reports so the ratio is consistent, and check the example values as a guide to the units expected.
Do the rules differ by location?
Yes. Statutory rates, ceilings and eligibility conditions vary by country and often by state. Adjust the inputs to your jurisdiction and confirm with your payroll provider or labour law adviser.
