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PTO Ledger

Semimonthly accrual

Twice a month — usually the 15th and the last day — so 24 paychecks a year.

0 60 120 cap 120 hours next payday
80 hours a year on a semimonthly schedule — 3.33 hours a period against a 120-hour ceiling

Eighty hours a year across 24 periods is 3.33 hours each time. Against a 120-hour ceiling the balance closes the year at 79.92 hours .

Who is paid this way

Salaried staff, because two fixed dates a month match monthly reporting and benefit deductions.

How the periods land on the calendar

The dates are fixed — commonly the 15th and the last day — so the period length itself varies between thirteen and sixteen days.

The edge case

The same annual hours split into 24 instead of 26, so each period accrues more. Comparing a per-period figure across the two methods without converting is the most common mistake.

A balance read on the 20th already includes the 15th accrual, while the same date on a biweekly schedule might include none that month. Comparing the two on the same calendar day is how a figure gets misread.

Starting mid-period

A hire date inside a period earns a part of that period's accrual. Halving the first period changes the first row to 1.67 hours instead of 3.33, and the year closes at 78.25 hours .

That is worth noticing: when a ceiling is reached well before year end, a late start costs nothing by December. When it is not reached, the missing half period stays missing.

The same entitlement on other schedules

80 hours a year expressed per pay period
Schedule Periods a year80 h/yr becomes
Weekly 521.54
Biweekly 263.08
Semimonthly 243.33
Monthly 126.67

Reading a per-period figure from one schedule as if it were another is the most common error.

Front loading and carryover

Some policies hand over the whole year at once instead of accruing. Front loading 80 hours against a 40-hour ceiling lands at 40 hours with 40 hours never granted — the ceiling applies the same way.

At year end a carryover limit cuts what moves forward. A closing balance of 79.92 hours against a 40-hour carryover limit moves 40 hours into the new year and loses 39.92 hours. Whether a policy may do that depends on the jurisdiction — the jurisdiction pages quote the rule.

Priced at $32 an hour, 40 hours is $1280.00. A payout is normally computed at a stated rate — some jurisdictions set a floor on which rate may be used.

How many pay periods does a semimonthly schedule have?
24 a year. That number does not change in a leap year — payroll runs on a fixed count of periods, not on days.
What is the edge case that trips people up?
The same annual hours split into 24 instead of 26, so each period accrues more. Comparing a per-period figure across the two methods without converting is the most common mistake.
What happens when the ceiling is reached?
Accrual halts for that period instead of deleting hours already earned. If you then use some time, the next period accrues only as much as the room you freed.
Is anything stored?
No. Nothing on this site is saved or sent — there are no accounts.
Informational only. Not legal advice, and not a substitute for your employer’s written policy.