Enter your salary and start or end date to calculate your prorated pay for a partial month or year. The calculator compares the working-day, calendar-day and hourly methods, so you can check your first or last paycheck.
| Method | Days | Prorated pay |
|---|
Know More: How the Prorated Salary Calculator Works
Updated for 2026. 2026 has 261 working days (Monday to Friday) and 11 federal holidays. Observed dates that move: Independence Day falls on a Saturday, so it is observed on Friday, July 3, 2026. The calculator counts holidays automatically for any year (OPM federal holidays).
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What prorated salary means
A salary is set for a full period, a month or a year. When you work only part of that period, because you start or leave mid-month, take unpaid leave or change from part-time to full-time, your employer pays a prorated share:
Prorated salary = full salary × days worked ÷ days in the period
Example: a $72,000 salary is $6,000 a month. Start on Monday, November 16, 2026 and you work 11 of the 21 working days in November, so your November pay is $6,000 × 11 ÷ 21 = $3,142.86.
Working-day vs calendar-day method
Employers use one of three methods, set by company policy:
- Working days: counts Monday to Friday only. Most common in the US. The daily rate changes each month, because months have 20 to 23 working days.
- Calendar days: counts every day, weekends included. Simple, and the daily rate depends only on the month's length.
- Hours: pays an hourly rate of annual salary ÷ 2,080 hours ($34.62 on $72,000) for the hours you work. Common when payroll runs on hours.
The method matters most when you start or leave near a weekend. Starting Monday, November 2, 2026, you work all 21 working days, so the working-day method pays the full $6,000, but the calendar-day method pays 29 of 30 days, $5,800.
For a partial year, the same methods apply over the year: 2026 has 261 working days and 365 calendar days. Holidays: salaried employees are normally paid for holidays that fall during their employment, so they count as working days. Choose "Not paid" if your employer doesn't pay them.
Your first and last paycheck
- First paycheck: often smaller because it covers only part of a pay period, and new hires sometimes start after the cutoff for a payroll run, so the first check may come a pay period later and cover more days.
- Last paycheck: covers the days you worked in the final period, plus any unused vacation your state or employer requires to be paid out. Leaving on Friday, December 11, 2026, on a $6,000 monthly salary pays 9 of 23 working days, $2,347.83.
- Deadlines: there is no federal deadline for a final paycheck, but many states set one. California, for example, requires immediate payment when you're fired and within 72 hours if you quit without notice.
Both checks have the usual taxes and deductions taken out; enter a rough percentage to estimate your take-home pay.
Examples
$72,000 salary ($6,000 a month), starting in November 2026 (21 working days, 30 calendar days):
| Start date | Working days | Calendar days |
|---|---|---|
| Mon, Nov 2 | $6,000.00 | $5,800.00 |
| Mon, Nov 9 | $4,571.43 | $4,400.00 |
| Mon, Nov 16 | $3,142.86 | $3,000.00 |
| Mon, Nov 23 | $1,714.29 | $1,600.00 |
Working days in 2026 by month: 22 in January, 20 in February, 22 in March and April, 21 in May, 22 in June, 23 in July, 21 in August, 22 in September and October, 21 in November and 23 in December. Results are estimates; your employer's policy decides the method. Last reviewed: November 1, 2026.
Prorated Salary Calculator FAQs
How do you prorate a salary?
Divide the full salary for the period by the number of days in it, then multiply by the days you worked. For a $6,000 month with 21 working days, the daily rate is $285.71; working 11 days pays $3,142.86. Employers use working days, calendar days or hours, depending on their policy.
Do weekends count when prorating?
With the working-day method, the most common one, weekends don't count: only Monday to Friday. With the calendar-day method, every day counts, including weekends. The two can differ by a few hundred dollars for the same dates.
Why is my first paycheck smaller?
Your first paycheck usually covers only part of a pay period, from your start date to the end of the period, so it's prorated. If you started after the payroll cutoff, those days may be paid on the next check instead.
How is my last paycheck calculated?
It pays the days you worked in your final pay period, prorated the same way, plus any unused vacation that your state or employer requires to be paid out, minus the usual taxes and deductions.
More salary and paycheck calculators
- Salary & Paycheck Calculator: take-home pay after taxes
- Salary to Hourly Calculator: your hourly, daily and weekly rate
- PTO Accrual Calculator: vacation hours you earn each pay period
- Severance Pay Calculator: pay when you leave a job
- California Final Paycheck Penalty Calculator: penalty for a late final paycheck