Salary Proration Calculator

Estimate prorated salary for partial-month employment using an editable payroll day divisor.

Prorate monthly salary

Enter monthly eligible salary, payable days and the divisor used by your payroll policy.

Monthly eligible salary

Monthly eligible fixed allowance

Payable days

Payroll day divisor

Daily prorated rate—

Prorated gross amount—

Amount not earned vs full eligible month—

How the calculation works

Eligible monthly pay = monthly salary + entered eligible allowance. Daily prorated rate = eligible monthly pay ÷ payroll divisor. Prorated gross amount = daily rate × payable days.

How to use the result

Use the day-count convention actually used by payroll, such as calendar days or another policy basis. The editable divisor makes the calculation visible rather than assuming every employer uses 30 days.

Assumptions and limitations

Proration can differ for joiners, leavers, unpaid leave, different months and salary components. Statutory deductions, tax and benefits are not calculated here.

Example

If eligible monthly pay is 60,000, the divisor is 30 and 20 days are payable, prorated gross pay is 40,000.

Frequently asked questions

Why is the payroll divisor editable?

Employers can use different proration methods, so you should enter the divisor used by the applicable policy or payroll system.

Should allowances be prorated?

Only include allowances that are eligible for the same proration method.

Does the result include PF, ESI or tax?

No. It estimates prorated gross pay before separate payroll deductions.

Can payable days exceed the divisor?

The tool allows it but flags the situation because it may indicate a mismatch in day-count conventions.