What is the difference between semi-monthly and biweekly pay?
Biweekly pay follows the calendar week. You are paid every 14 days on the same weekday, usually a Friday, which gives you 26 paychecks in most years and 27 in a few.
Semi-monthly pay follows the calendar month. You are paid on two set dates each month, such as the 1st and 15th or the 15th and the last day, which always gives you 24 paychecks.
That single difference drives everything else: the size of each check, whether you ever get a third paycheck in a month, and how overtime lines up with payday.
Biweekly is the most common schedule. In a February 2023 Bureau of Labor Statistics (BLS) survey of private employers, 43.0% paid biweekly, 27.0% weekly, 19.8% semi-monthly and 10.3% monthly.
Weekly, biweekly, semi-monthly and monthly pay compared
| Schedule | Paychecks per year | Typical paydays | Pros for employees | Cons for employees | Employer view |
|---|---|---|---|---|---|
| Weekly | 52 (53 in some years) | Every Friday | Fastest access to earned pay | Smallest checks; rent may need two or more checks | Most payroll runs to process; common for hourly crews |
| Biweekly | 26 (27 in some years) | Every other Friday | Two months a year with a third paycheck | Paydays drift against fixed bill due dates | Each pay period is two whole workweeks, which keeps overtime simple |
| Semi-monthly | 24 | 1st and 15th, or 15th and last day | Paydays line up with monthly bills | Payday can land on any weekday; hourly checks vary in size | Fewer runs than biweekly; some workweeks split across two periods |
| Monthly | 12 | Last business day of the month | One large, predictable check | Long wait between checks | Fewest runs; some states do not allow it for many workers |
The IRS uses the same counts in its withholding tables: 52 weekly, 26 biweekly, 24 semimonthly and 12 monthly pay periods per year.
Federal law says wages required by the Fair Labor Standards Act (FLSA) are due on the regular payday for the pay period covered. How often payday must come is mostly set by state law. The U.S. Department of Labor keeps a table of state payday requirements. Texas, for example, requires employees who are not exempt from federal overtime to be paid at least twice a month.
How does biweekly pay work?
A biweekly payroll runs on a fixed 14-day cycle:
- The pay period covers two full workweeks, for example Sunday, October 4 through Saturday, October 17.
- Payroll totals the hours worked (or the salary owed) for those 14 days.
- Payday lands on the same weekday every other week, often a few days after the period closes so payroll has time to process it.
Because 52 weeks divided by 2 is 26, most years have 26 biweekly paydays. A year is one or two days longer than 52 weeks, so roughly every 11 or 12 years a biweekly schedule picks up a 27th payday. Our guide on how many pay periods are in a year shows which payday weekdays get 27 checks in 2026 and 2027.
Biweekly pay also creates two months a year with three paydays. A company that paid on Friday, January 2, 2026, for example, pays three times in January and three times in July.
How does semi-monthly pay work?
Semi-monthly payroll splits each month in two. The first period usually runs from the 1st through the 15th. The second runs from the 16th through the last day of the month, which can be anywhere from 13 to 16 days.
Salaried employees get the same amount every time: the annual salary divided by 24. Hourly employees are paid for the hours inside each period, so their checks change size. A 1st-to-15th period always contains 10 or 11 weekdays, while a 16th-to-month-end period contains 9 to 12.
When a payday falls on a weekend or holiday, many employers pay on the business day before, and some pay on the next one. Your state law and your employer’s policy decide which. Our semi-monthly pay guide walks through common schedules and an hourly example.
Worked example: a $52,000 salary on each schedule
Jordan Lee earns $52,000 a year as a dispatcher at Northwind Logistics. Here is Jordan’s gross pay per check on each schedule, before taxes and deductions.
| Schedule | Math | Gross per paycheck | What a month looks like |
|---|---|---|---|
| Weekly | $52,000 / 52 | $1,000.00 | $4,000 (4 checks) or $5,000 (5 checks) |
| Biweekly | $52,000 / 26 | $2,000.00 | $4,000 (2 checks) or $6,000 (3 checks) |
| Semi-monthly | $52,000 / 24 | $2,166.67 | $4,333.33 every month |
| Monthly | $52,000 / 12 | $4,333.33 | $4,333.33 every month |
Three things stand out:
- The biweekly check is $166.67 smaller than the semi-monthly check, but there are two more of them. Ten months bring $4,000 and two months bring $6,000, which still adds up to $52,000.
- Semi-monthly and monthly pay give the same monthly total, so they are easier to match against rent, a car payment and other monthly bills.
- $52,000 a year equals $25 an hour at 40 hours a week for 52 weeks. See the full breakdown on our $25 an hour salary page, or try other figures with the salary calculators.
In a year with 27 biweekly paydays, employers handle salaried pay in one of two ways. Some keep the check at $2,000, so Jordan receives $54,000 in that calendar year. Others divide the salary by 27, which drops each check to $1,925.93. Ask HR which method your company uses.
Your take-home pay will be lower than these figures after federal and state income tax withholding, Social Security, Medicare and any benefit deductions.
How does overtime work on biweekly and semi-monthly schedules?
Under the FLSA, overtime is calculated by the workweek, not the pay period. The Department of Labor defines a workweek as a fixed, regularly recurring period of 168 hours: seven consecutive 24-hour periods. Nonexempt employees earn at least time and one-half their regular rate for hours over 40 in a workweek, and averaging hours over two or more weeks is not permitted.
That matters most on biweekly pay, where a two-week total can hide overtime.
Jordan earns $20 an hour and works 50 hours in week one and 30 hours in week two. The pay period totals 80 hours, but week one includes 10 overtime hours. Correct pay is 70 hours x $20 ($1,400) plus 10 hours x $30 ($300), for $1,700. Paying 80 x $20 = $1,600 would shortchange Jordan by $100.
When overtime must be paid. Under federal regulation 29 CFR 778.106, overtime earned in a workweek generally must be paid on the regular payday for the pay period in which that workweek ends. If the amount cannot be figured in time, the employer must pay it as soon as practicable, and no later than the next regular payday after the calculation can be made.
The semi-monthly wrinkle. Semi-monthly periods split on dates, so a workweek often straddles two periods. In October 2026, the 15th is a Thursday. A Sunday-to-Saturday workweek running October 11 to 17 ends in the second-half period, so overtime for that week is generally due with the paycheck for October 16 to 31.
State or local laws can give workers more protection than the FLSA. For a specific pay dispute, contact your state labor department or an employment attorney.
Bi-weekly vs bi-monthly: why the terms get mixed up
Bi-weekly is clear: every two weeks, or 26 paychecks in most years.
Bi-monthly is not. Dictionary.com lists two meanings for bimonthly: once every two months, and twice a month (the same as semimonthly). Its usage note recommends spelling out which one you mean.
So if a job posting or offer letter says bi-monthly, ask a direct question before you plan your budget:
“Thanks for the offer. One payroll question: will I be paid 24 or 26 times a year, and what are the pay dates?”
If the answer is 24, it is semi-monthly. If it is 26, it is biweekly.
Weekly and biweekly vs semi-monthly: which is better?
Neither schedule pays more over a year. The better one depends on how you manage money.
Biweekly or weekly pay may suit you if you:
- Want to tie each check to a specific set of hours you worked
- Like the two “extra” paychecks for savings goals or larger bills
- Work hourly with variable schedules or frequent overtime
Semi-monthly pay may suit you if you:
- Pay most bills monthly and want two equal checks against them
- Are salaried and prefer the same amount on the same dates every month
- Find it easier to budget around fixed dates than moving paydays
From the employer side, biweekly payroll keeps each pay period aligned with whole workweeks, which simplifies overtime for hourly staff. Semi-monthly payroll means 24 runs instead of 26 and makes it easy to split monthly costs, such as benefit premiums, evenly between two checks.
How to check your own pay schedule
- Open your latest pay stub and find the pay period start and end dates.
- If the period is always 14 days and ends on the same weekday, you are on biweekly pay.
- If the period ends on the 15th or the last day of the month, you are on semi-monthly pay.
- Count your paydays for the year with the pay period counter on our pay periods page so you know whether a third-paycheck month is coming.