PTO Accrual Calculator
Calculate how much paid time off you accrue per pay period, and when you will reach your target balance.
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How to use this calculator
PTO accrues each pay period based on annual entitlement divided by the number of pay periods. Days needed to reach a target = Target Days − Current Balance. Periods needed = Days needed / Accrual per period.
- 1
Enter your annual PTO entitlement and select your pay frequency (weekly, bi-weekly, semi-monthly, or monthly).
- 2
Input your current PTO balance and how many days you want to take off.
- 3
See how many pay periods and weeks until you have enough PTO, plus when you will hit your accrual cap.
Frequently asked questions
How is PTO accrual calculated?
Most employers divide your annual PTO entitlement by the number of pay periods in a year. If you have 15 days of annual PTO and are paid bi-weekly (26 periods), you accrue 15 ÷ 26 = 0.5769 days per pay period. After 10 pay periods (~20 weeks), you will have accrued about 5.77 days.
What happens when you hit the PTO accrual cap?
Most employers stop accruing PTO once you reach the maximum cap — often 1.5× to 2× your annual entitlement. Any additional PTO that would have accrued is lost until you use some days. To avoid losing PTO, schedule time off before reaching the cap.
Can I use PTO before it fully accrues?
Some employers allow you to use PTO in advance (a negative balance), while others require positive balance before you can use it. Check your employee handbook or HR policy. Using PTO before accrual is sometimes called "advance PTO" or "PTO borrowing."
PTO Accrual Calculator — Track Vacation Time Earned
How PTO Accrual Works
Paid Time Off (PTO) accrual is the process by which employees earn vacation and personal leave over time rather than receiving it all at once. Most US employers use one of two models: accrual (earning a fraction of your annual entitlement each pay period) or lump-sum (receiving all days at the start of the year or anniversary date). Accrual-based PTO protects employers if an employee leaves early but requires employees to plan their time off around their earned balance. Knowing your accrual rate helps you plan vacations, avoid losing PTO at the cap, and negotiate PTO as part of your compensation package.
PTO Accrual by Pay Frequency
Your pay frequency significantly affects how PTO accrues. Weekly pay (52 periods) results in the smallest increment per period but the most frequent additions. Monthly pay (12 periods) accrues the most per period but leaves larger gaps. Bi-weekly (26 periods) and semi-monthly (24 periods) are the most common and accrue a moderate amount each period. All schedules result in the same total annual PTO — the difference is only in how often your balance updates. Some employers round accruals to the nearest quarter-day or half-day, which can slightly affect the total over a year.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →