Biweekly vs Semimonthly Pay: Which Is Better?

David Vance, CPA

Senior Payroll & Tax Specialist · Published 2026-10-06 · 5 min read

Many employees confuse biweekly and semimonthly pay schedules, but they operate very differently. A biweekly schedule pays you every two weeks on a specific day of the week (typically alternating Fridays), resulting in 26 paychecks per year. A semimonthly schedule pays you twice per calendar month on fixed dates (such as the 1st and 15th, or 15th and last day of the month), resulting in exactly 24 paychecks per year.

Key Differences at a Glance

For employees, biweekly provides consistent day-of-week timing, while semimonthly aligns cleanly with monthly billing cycles.

Feature	Biweekly Pay	Semimonthly Pay
Number of checks / year	26 paychecks	24 paychecks
Check amount ($72k salary)	$2,769 gross	$3,000 gross
Paydays	Every two weeks (e.g. alternate Fridays)	Fixed dates (e.g. 15th & 30th)
Number of checks / month	2 checks (with two 3-check months)	Exactly 2 checks every month
Weekend alignment	Always the same weekday	Shifts if date falls on weekend

The Power of the 'Magic' 3-Paycheck Months

Because 52 weeks divided by 2 equals 26 pay periods, two months every calendar year will contain three biweekly paychecks instead of two. If you budget your regular living expenses based on two paychecks, those two 'bonus' paychecks can be directed entirely to savings, debt payoff, or vacations.

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Compare Biweekly vs Semimonthly Paychecks

Common Questions

Your total annual salary is identical. Semimonthly checks are slightly larger (Annual / 24) than biweekly checks (Annual / 26), but you receive two fewer checks over the year.

Semimonthly simplifies accounting and benefits deductions because each month has an exact half-and-half structure.