Guide
Biweekly vs Semimonthly Pay
Biweekly and semimonthly sound similar and are often confused, but they produce different numbers of paychecks, different paycheck sizes, and different paydays. If you are comparing job offers or setting a budget, the distinction matters.
The core difference
| Biweekly | Semimonthly | |
|---|---|---|
| How often | Every two weeks (e.g. every other Friday) | Twice a month (e.g. the 15th and last day) |
| Paychecks per year | 26 (occasionally 27) | 24 |
| Paycheck size for a $60,000 salary | $2,307.69 | $2,500.00 |
| Payday | Same weekday, drifts through the month | Fixed dates, weekday varies |
| Hours per check (hourly staff) | Always 80 for a 40-hour week | Varies: 80–96 depending on the period |
Why 26 vs 24 changes your paycheck
Your annual pay is the same either way; it is just divided into more or
fewer slices. A $60,000 salary is 60000 ÷ 26 = $2,307.69
biweekly or 60000 ÷ 24 = $2,500.00 semimonthly. The
semimonthly checks are larger, but there are two fewer of them.
Because most months have two paydays under either system, a biweekly schedule produces two months a year with three paychecks. Many people treat those "extra" checks as a chance to save or pay down debt, since their monthly budget is usually built around two.
The 27-paycheck year
A biweekly schedule pays 26 times in most years, but every 11 years or so a calendar quirk creates a 27th payday. Employers handle it in one of two ways: divide the annual salary by 27 that year (each check is slightly smaller) or pay the normal amount 27 times (you earn a little extra). Ask which applies before assuming your paycheck dropped by mistake. Which years have 27 paydays for your payday is covered in 27 pay periods.
Effect on hourly workers
For hourly staff, biweekly is simpler: a pay period is exactly two workweeks, so a standard schedule is always 80 hours and overtime is calculated cleanly within each week.
Semimonthly splits awkwardly across weeks. A period running the 1st to the 15th might contain 11 working days one month and 12 the next, and a single workweek can straddle two pay periods. Overtime is still calculated by the workweek, not the pay period, so payroll has to track hours across the boundary. This is the main reason employers with many hourly workers prefer biweekly.
Effect on benefit deductions
Deductions like health premiums are an annual amount spread across paychecks. Semimonthly is tidy: the yearly premium divided by 24, the same every check. Biweekly employers usually divide by 24 as well and simply take no premium deduction on the two extra "third" paychecks each year — so those checks are a little bigger still. Retirement contributions set as a percentage come out of every check regardless.
Which is better for you?
- Budgeting to a monthly cycle: semimonthly lines up with rent and bills — two predictable paydays on roughly the same dates.
- Building in forced savings: biweekly's two bonus-feeling paychecks a year are easier to save when your budget already runs on two.
- Hourly with variable overtime: biweekly makes your pay easier to predict and check.
In practice you rarely get to choose — it is set by the employer. Weekly (52 checks) and monthly (12) are the other options; weekly is common in construction and hospitality, monthly for some salaried and executive roles.
Work out your paycheck
The Paycheck Calculator lets you pick a pay frequency and see the withholding and net pay for one check. The Salary to Hourly Calculator converts an annual figure to weekly, biweekly, semimonthly, and monthly amounts side by side, and the Paycheck Calculator shows the per-paycheck take-home for a salary in its annual-salary mode.