Policies differ: some employers front-load the year's PTO, some accrue by hours worked, and some cap the balance. Many states require unused vacation to be paid at termination, while others allow forfeiture. Sick time may be governed by separate state laws.
Part-time and new employees may accrue at different rates.
PTO Accrual: worked example
| Annual PTO (hours) | 120 |
|---|---|
| Pay periods per year | 26 |
| Pay periods worked so far | 10 |
| PTO hours already used | 16 |
| Available PTO (hours) | 30.2 |
| PTO earned per pay period (hours) | 4.6 |
| Available PTO (8-hour days) | 3.8 |
PTO Accrual: formula
Annual PTO hours is your yearly allowance, for example 120 hours for three weeks at 40 hours a week. Pay periods per year is how often you are paid, pay periods worked so far is how many you have completed in the accrual year, and PTO hours already used is what you have taken. Your employee handbook states whether PTO accrues per hour worked or per pay period and whether there is a cap or a carryover limit.
Common error: Ignoring the cap. Many employers stop accrual at a maximum balance or let it expire at year end, so a large balance can be worth less than the number shows.
PTO Accrual: changing Annual PTO (hours)
| Annual PTO (hours) | Available PTO (hours) | PTO earned per pay period (hours) | Available PTO (8-hour days) |
|---|---|---|---|
| 96 | 20.9 | 3.7 | 2.6 |
| 108 | 25.5 | 4.2 | 3.2 |
| 120 (example) | 30.2 | 4.6 | 3.8 |
| 132 | 34.8 | 5.1 | 4.3 |
| 144 | 39.4 | 5.5 | 4.9 |
PTO Accrual: compare input ranges
| Input | Tested from | To | Available PTO (hours): low input | Available PTO (hours): high input | Swing |
|---|---|---|---|---|---|
| Pay periods per year | 23 | 29 | 36.2 | 25.4 | 10.8 (36%) |
| Pay periods worked so far | 9 | 11 | 25.5 | 34.8 | 9.2 (31%) |
| Annual PTO (hours) | 108 | 132 | 25.5 | 34.8 | 9.2 (31%) |
| PTO hours already used | 14 | 18 | 32.2 | 28.2 | 4 (13%) |
PTO Accrual: individual input comparisons
| Input | Value | Available PTO (hours) | PTO earned per pay period (hours) | Available PTO (8-hour days) |
|---|---|---|---|---|
| Annual PTO (hours) | 96 | 20.9 | 3.7 | 2.6 |
| 108 | 25.5 | 4.2 | 3.2 | |
| 120 | 30.2 | 4.6 | 3.8 | |
| 132 | 34.8 | 5.1 | 4.3 | |
| 144 | 39.4 | 5.5 | 4.9 | |
| Pay periods per year | 21 | 41.1 | 5.7 | 5.1 |
| 23 | 36.2 | 5.2 | 4.5 | |
| 26 | 30.2 | 4.6 | 3.8 | |
| 29 | 25.4 | 4.1 | 3.2 | |
| 31 | 22.7 | 3.9 | 2.8 | |
| Pay periods worked so far | 8 | 20.9 | 4.6 | 2.6 |
| 9 | 25.5 | 4.6 | 3.2 | |
| 10 | 30.2 | 4.6 | 3.8 | |
| 11 | 34.8 | 4.6 | 4.3 | |
| 12 | 39.4 | 4.6 | 4.9 | |
| PTO hours already used | 13 | 33.2 | 4.6 | 4.1 |
| 14 | 32.2 | 4.6 | 4 | |
| 16 | 30.2 | 4.6 | 3.8 | |
| 18 | 28.2 | 4.6 | 3.5 | |
| 19 | 27.2 | 4.6 | 3.4 |
PTO Accrual: combined input changes
| Annual PTO (hours) / Pay periods worked so far | 8 | 10 | 12 |
|---|---|---|---|
| 96 | 13.5 | 20.9 | 28.3 |
| 108 | 17.2 | 25.5 | 33.8 |
| 120 | 20.9 | 30.2 | 39.4 |
| 132 | 24.6 | 34.8 | 44.9 |
| 144 | 28.3 | 39.4 | 50.5 |
PTO Accrual: which assumptions move the result?
PTO Accrual: values and definitions
| Quantity and definition | Value used |
|---|---|
| Annual PTO (hours) — Your yearly allowance. 120 hours is 15 eight-hour days. | 120 |
| Pay periods per year — 26 for biweekly, 24 for semimonthly, 12 for monthly and 52 for weekly pay. | 26 |
| Pay periods worked so far | 10 |
| PTO hours already used — Hours of leave you have taken so far this year. | 16 |
| Available PTO (hours) | 30.2 |
| PTO earned per pay period (hours) | 4.6 |
| Available PTO (8-hour days) | 3.8 |
PTO Accrual: half and double Pay periods per year
| Pay periods per year | Available PTO (hours) |
|---|---|
| 13 | 76.3 |
| 26 | 30.2 |
| 52 | 7.1 |
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Paid time off usually builds a little each pay period. With 120 hours a year across 26 pay periods you earn 4.62 hours a period. After 10 periods you have earned 46.2 hours, and if you have used 16, you have 30.2 hours, which is about 3.8 eight-hour days.
Match the pay period count to your payroll. Biweekly pay has 26 periods a year and semimonthly has 24, and the accrual changes by a few tenths of an hour between them.
Convert time off into dollars with the gross pay and salary-to-hourly calculators, and see the paycheck page for how paid leave shows up. The employee cost calculator shows what benefits add to payroll. Carryover and payout rules depend on the employer’s policy and applicable law.
Does leave accrue during an unpaid absence?
Use the employer’s applicable policy and governing rules. A fixed per-pay-period arithmetic model does not determine eligibility during a leave of absence.
Does this handle an annual cap or forfeiture?
No. The entered accrual and use amounts do not automatically apply policy-specific caps, carryover or anniversary rules.
Does unused PTO get paid out when I leave?
In some states employers must pay out earned vacation at termination, and in others it depends on the policy. Check your state law and your employer's handbook.
What is an accrual cap?
A maximum balance of PTO you can hold. When you reach it, you stop earning more until you use some, which is why planning time off matters.
Do I accrue PTO during unpaid leave?
The employer’s accrual policy and applicable law determine PTO treatment. The calculation cannot determine that entitlement. Some arrangements accrue against paid hours, others use a fixed periodic credit, and leave status can affect eligibility; enter only the hours or periods that the actual policy counts.