Quick answer: prorated pay = annual salary x days in the partial period / days in the year. Starting on September 30, 2026 and paid through October 30 by working days: 60,000 x 23 / 261 = 5,287.36.
How salary is prorated
The most common methods divide the annual salary by working days in the year (about 260 or 261) or by calendar days (365), then multiply by the days in the partial period. Holidays inside the period are paid, so the working-days method counts every weekday.
Paid by the day? The day rate calculator gives the daily figure; leaving with a package, see the severance calculator.
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Questions
Which prorating method is correct?
The one in your offer letter or pay policy. Working-day and calendar-day methods give slightly different results; some employers use 12 equal months and prorate only the first and last.