Blog · Payroll Calendars
Semimonthly vs. Biweekly Payroll: Which Fits You
Choosing between semimonthly and biweekly payroll affects your budgeting rhythm, your overtime math, and how much payroll processing costs over a year. Both are common, both are compliant in nearly every state, and the right choice comes down to your workforce mix and how your finance team likes to plan.
The Core Difference: 24 vs. 26 Pay Periods
Semimonthly payroll pays twice a month on fixed calendar dates, commonly the 15th and the last business day of the month. That produces 24 pay periods a year, every year, regardless of how the calendar falls.
Biweekly payroll pays every 14 days on a fixed day of the week, most often a Friday. That produces 26 pay periods in most years. Because 26 periods of 14 days equal 364 days, one day short of a full year, the payday sequence drifts slightly and occasionally produces a 27th payday in a given year, though this is uncommon.
Side-by-Side Comparison
| Factor | Semimonthly | Biweekly |
|---|---|---|
| Pay periods per year | 24 | 26 (occasionally 27) |
| Payday pattern | Fixed calendar dates (e.g. 15th and last business day) | Fixed weekday every 14 days |
| Paycheck consistency | Amount varies slightly since periods range 13-16 days | Consistent, since every period is exactly 14 days |
| Overtime/FLSA alignment | Can split a single workweek across two periods | Aligns cleanly with the 7-day FLSA workweek |
| Best fit | Salaried-only or mixed workforces, simpler monthly budgeting | Hourly-heavy workforces, clean weekly time tracking |
| Processing frequency | Lower (24 runs/year) | Higher (26 runs/year) |
2026 Semimonthly Paydays (Verified)
Using the 15th of the month and the last business day as the two fixed paydays, with weekend dates adjusted to the prior business day, 2026 produces 24 semimonthly paydays:
| Month | Mid-Month Payday | End-of-Month Payday |
|---|---|---|
| January | Jan 15, 2026 (Thu) | Jan 30, 2026 (Fri) |
| February | Feb 13, 2026 (Fri) | Feb 27, 2026 (Fri) |
| March | Mar 13, 2026 (Fri) | Mar 31, 2026 (Tue) |
| April | Apr 15, 2026 (Wed) | Apr 30, 2026 (Thu) |
| May | May 15, 2026 (Fri) | May 29, 2026 (Fri) |
| June | Jun 15, 2026 (Mon) | Jun 30, 2026 (Tue) |
| July | Jul 15, 2026 (Wed) | Jul 31, 2026 (Fri) |
| August | Aug 14, 2026 (Fri) | Aug 31, 2026 (Mon) |
| September | Sep 15, 2026 (Tue) | Sep 30, 2026 (Wed) |
| October | Oct 15, 2026 (Thu) | Oct 30, 2026 (Fri) |
| November | Nov 13, 2026 (Fri) | Nov 30, 2026 (Mon) |
| December | Dec 15, 2026 (Tue) | Dec 31, 2026 (Thu) |
That is 24 total paydays for 2026 under a 15th/last-business-day semimonthly schedule, six fewer than the 26 biweekly produces, but each semimonthly check is proportionally larger to cover the extra days.
Budgeting and Overtime: The Practical Tradeoffs
For finance teams, semimonthly's fixed 24 periods make monthly budgeting simple: two payroll runs, every month, no exceptions. Biweekly's 26 periods mean two months a year get a third payroll run, which can catch a budget forecast off guard if it is not planned for.
For workforces paid hourly, biweekly is usually the safer choice for overtime compliance. Each biweekly period covers exactly two 7-day workweeks, so overtime calculated per workweek stays contained inside a single pay period. Semimonthly periods vary in length between 13 and 16 days and do not align with workweek boundaries, so a single workweek's hours can span two different paychecks, complicating overtime calculation and recordkeeping.
We Run Every Cycle, On Your Schedule.
Whether you run semimonthly, biweekly, or weekly, BEG manages payroll at $25-$45 per employee per month, all-inclusive.
Frequently Asked Questions
What is the difference between semimonthly and biweekly payroll?
Semimonthly payroll pays twice a month on fixed dates, such as the 15th and last business day, producing 24 pay periods a year. Biweekly payroll pays every 14 days on a fixed weekday, producing 26 pay periods a year.
Which is better for overtime calculations, semimonthly or biweekly?
Biweekly aligns cleanly with a standard 7-day FLSA workweek, since each pay period always covers exactly two full workweeks. Semimonthly periods vary in length and can split a single workweek across two pay periods, adding complexity to overtime calculation.
Does semimonthly or biweekly cost more to run?
Biweekly costs slightly more to process because it runs 26 times a year versus 24 for semimonthly, assuming a per-run cost structure. Under all-inclusive PEPM pricing, like BEG uses, the payroll frequency does not change your monthly rate.
Can we switch from biweekly to semimonthly, or the reverse?
Yes, though the transition needs planning around employee communication, benefit deduction timing, and any state notice requirements for pay frequency changes. BEG manages that transition as part of onboarding.
Which schedule do most companies use?
Biweekly is the most common pay frequency among U.S. private employers, largely because of its clean alignment with weekly time tracking and overtime rules. Semimonthly is common among salaried-only workforces and some public-sector employers.
Anthony leads payroll solutions at Business Executive Group, a national managed payroll firm serving businesses across industries. BEG manages payroll at $25-$45 PEPM, all-inclusive, with deep expertise in compliance, multi-state filing, and industry-specific payroll requirements. Get instant pricing at beghr.com.
Authoritative source: U.S. Department of Labor: Wage and Hour Division
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