How many pay periods in a year comes down to how often you run payroll: 52 on a weekly schedule, 26 biweekly, 24 semi-monthly, and 12 monthly. Those are the counts the IRS builds its withholding tables on, and they hold in most years. Weekly and biweekly schedules pick up an extra period in some years, and that 53rd or 27th paycheck is where most payroll questions start.
| Pay Frequency | Pay Periods a Year | Period Length | Weeks per Period | Paychecks a Month |
|---|---|---|---|---|
| Weekly | 52 (53 in some years) | 7 days | 1 | 4 or 5 |
| Biweekly | 26 (27 in some years) | 14 days | 2 | 2 or 3 |
| Semi-monthly | 24 | 13 to 16 days | About 2.17 | 2 |
| Monthly | 12 | 28 to 31 days | About 4.33 | 1 |
What Is a Pay Period?
A pay period is the stretch of work one paycheck covers. The IRS calls it “the period of time for which a wage payment is made to an employee, such as weekly, biweekly, semimonthly, or monthly,” and the withholding worksheets in Publication 15-T count 52, 26, 24, and 12 of them a year. Payday usually comes a few days after the period closes, which gives payroll time to collect hours, approve timesheets, and run the numbers.
Two things get mixed up here. The pay period is the work window; the payday is when the money lands. A biweekly period that ends on Sunday, June 14 might pay out on Friday, June 19. When people ask how many pay periods a year has, they almost always mean paydays inside the calendar year, and that is why the same schedule can produce 26 paychecks one year and 27 the next.
How Many Pay Periods Are in a Year by Pay Frequency
Four schedules cover nearly every US employer. Each one changes the count, the size of the check, and the amount of payroll admin.
Weekly Pay: 52 Pay Periods
Employees are paid every 7 days on a fixed weekday, most often Friday. That gives 52 paychecks in a normal year and 4 or 5 in any given month. Hourly and shift-based teams lean toward weekly pay because the check follows the hours closely, and overtime reconciles cleanly since the FLSA measures it per 7-day workweek anyway. The cost is 52 payroll runs a year.
Biweekly Pay: 26 Pay Periods
Biweekly pay means a paycheck every 14 days, so 26 pay periods in a normal year and 2 or 3 paychecks a month. Paydays drift through the calendar because 14-day steps ignore month boundaries, which is why the pay date moves from the 3rd to the 17th to the 31st. Every workweek sits inside a single period, so overtime never splits across two checks.
Semi-Monthly Pay: 24 Pay Periods
Semi-monthly pay lands twice a month on fixed dates, typically the 15th and the last day of the month, or the 1st and the 15th. That makes exactly 24 pay periods a year, most of them 15 or 16 days long (the second half of February runs 13 or 14), with 2 paychecks every month and no extra-check months, ever. Salaried teams like the predictability. Hourly teams find it messier: a 7-day workweek often straddles two periods, so overtime earned in one week can show up split across two paychecks. The semi-monthly vs biweekly payroll comparison walks through that choice.
Monthly Pay: 12 Pay Periods
One paycheck a month means 12 pay periods, each 28 to 31 days. It is the cheapest schedule to run and the hardest on employees’ cash flow, and many states do not allow it for most private-sector workers. The Department of Labor’s state payday requirements table shows Arizona requiring at least 2 paydays a month no more than 16 days apart, Connecticut defaulting to weekly, and New York requiring weekly pay for manual workers, while Oregon and Washington allow monthly and Florida sets no minimum at all. Check your state’s row before you settle on a frequency.
Why Some Years Have 53 Weekly or 27 Biweekly Pay Periods
A calendar year is 52 weeks plus 1 day, or plus 2 days in a leap year. Those leftover days tip the weekday count: 1 weekday (2 in a leap year) shows up 53 times instead of 52. If that weekday is your payday, a weekly schedule produces 53 paychecks. A biweekly schedule produces 27 when its cycle hits both the first and the last occurrence of that weekday, and 26 when it hits neither.
A concrete example: 2026 starts on a Thursday, so Thursday appears 53 times. A team paid every Thursday gets 53 checks in 2026. A team paid every other Thursday gets 27 if its paydays include January 1, and 26 if they start on January 8. In 2027 the same thing happens to Friday, a common payday, so any biweekly employer whose Friday cycle lands on January 1, 2027 will run a 27-period year.
The federal government has planned around this for decades. OPM’s pay guidance states that “there are usually 26 pay dates each year” and that “over a period of several years, employees can expect to experience 27 pay days in a calendar year,” which is why federal hourly rates use a 2,087-hour divisor averaged over the 28-year calendar cycle. OPM’s own example: a GS-13 employee paid $3,412.80 biweekly receives $88,733 in a 26-period year and $92,146 in a 27-period year.
What a 27th Pay Period Means for Payroll
For hourly employees, nothing changes: they worked the hours, they get the check. Salaried employees are the question. If each biweekly check is annual salary divided by 26, a 27th check pays 1/26 of salary above the contract figure, about 3.85% extra. Two clean options:
- Pay the 27th check in full. The simplest route, and what federal payroll does. Budget for it early: a $2 million salaried payroll costs about $77,000 more that year.
- Divide annual salary by 27 for that year. Total pay stays flat, but each check shrinks by about 3.7%. Announce it in writing before the first payday of the year, and confirm that exempt employees near the FLSA salary floor of $684 a week still clear it on the smaller check. An employee at $36,000 a year, for example, drops to $667 a week when the salary is split 27 ways.
Either way, tell people before it happens; a smaller check nobody explained turns into a support ticket. Then check the deductions. Benefit premiums, retirement contributions, and garnishments set up as per-pay-period amounts will run 27 times unless payroll is told to skip or cap them on the extra check.
5-Paycheck Months and 3-Paycheck Months
The same calendar drift shows up inside the year. On a biweekly schedule, 26 paychecks across 12 months leaves 2 months with 3 checks (3 months in a 27-period year). On a weekly schedule, 52 paychecks leaves 4 months with 5 checks (5 months in a 53-period year). Semi-monthly and monthly schedules never have them. Which months get the extra check depends on the payday, and the 5-paycheck months guide lists them by year.
How to Calculate Your Pay Periods
The Pay Period Calculator does the counting for any year from 2024 to 2030. It takes 4 inputs:
- Choose the year and pay frequency. Weekly, every 2 weeks, twice a month, or monthly.
- Set the payday. A weekday for weekly and biweekly schedules, the 15th and last day or the 1st and 15th for semi-monthly, and a date for monthly. For biweekly, any one real payday is enough; the calculator steps backward and forward from it in 14-day jumps.
- Decide what happens to weekend paydays. Move them to the Friday before, the Monday after, or leave them where they fall.
- Read the results. The calendar marks every payday and flags the extra-paycheck months. Below it you get paychecks in the year, pay periods left, next payday, pay period length, and hours per period on a 40-hour week.
Pay Periods Left in the Year
Periods remaining depend on the day you check and the payday, which is why no fixed table can answer it. The calculator counts from the current date for the schedule you entered, so the number changes daily, and the next-payday line tells you when the next run is due. Managers use this figure when timing a raise, spreading a bonus, or working out the final check for a departing employee.
Gross Pay per Paycheck
The number of pay periods sets the size of each check for salaried staff. Enter an annual salary in the calculator and it divides by the period count. For a $60,000 salary:
| Pay Frequency | Pay Periods | Gross per Paycheck |
|---|---|---|
| Weekly | 52 | $1,153.85 |
| Biweekly | 26 | $2,307.69 |
| Semi-monthly | 24 | $2,500.00 |
| Monthly | 12 | $5,000.00 |
Annual pay is identical across the 4 rows. What changes is how often it arrives and, in a 53- or 27-period year, whether the last check is an extra or a correction.
Running Payroll on Each Pay Period
Counting periods is the easy part. Each one still needs hours collected, overtime separated, time off applied, and timesheets approved before payday. WebWork’s Employee Payroll Tracker does that inside the same system that tracks the time: approved timesheets turn into pay amounts, fixed salaries run on a daily, weekly, or monthly frequency, and payroll exports by pay period go straight to Gusto, Deel, Wise, or your payment gateway. The overtime tracker flags hours over the threshold you set, so a semi-monthly period that splits a workweek does not hide the overtime inside it.
Final Thoughts
A year has 52 weekly, 26 biweekly, 24 semi-monthly, or 12 monthly pay periods, and the first two grow by 1 when the calendar’s leftover day lands on payday. Once you know which weekday your year starts on, the 27th paycheck is a budget line, not a surprise.
Run your schedule through the Pay Period Calculator to see the paydays, the extra-check months, and the periods left in the year.
Frequently Asked Questions
How Many Pay Periods Are in a Year?
Weekly pay has 52 pay periods, biweekly 26, semi-monthly 24, and monthly 12. Weekly and biweekly schedules get 53 or 27 in years where the extra calendar day falls on the payday weekday. A leap year adds 2 leftover days, so 2 weekdays occur 53 times and the odds of an extra period double.
How Many Biweekly Pay Periods Are in 2026?
26 for most employers. Thursday is the weekday that appears 53 times in 2026, so a biweekly cycle paid on Thursdays with January 1 as a payday has 27 periods. In 2027 the extra day falls on Friday, so Friday-paid biweekly cycles that include January 1, 2027 get 27.
Can Semi-Monthly or Monthly Pay Ever Have an Extra Pay Period?
No. Both schedules pay on calendar dates rather than weekdays, so they land exactly 24 or 12 times every year, leap year or not. The only variation is the period length, which stretches or shrinks with the month.
How Many Hours Are in a Pay Period?
On a 40-hour week, a weekly pay period holds 40 hours, a biweekly one 80, a semi-monthly one about 86.67, and a monthly one about 173.33. The semi-monthly and monthly figures come from dividing 2,080 annual hours by 24 or 12, so they are averages, and the real hours in a given period vary with its length.
Is a 27th Paycheck Taxed Differently?
No. Federal income tax is withheld per paycheck using the table for your pay frequency, so the 27th check is withheld like any other. The year’s W-2 simply shows 27 checks’ worth of wages, which is why some employees notice a higher annual total that year.
