Paid time off (PTO) usually builds up gradually over the year rather than arriving all at once. Understanding your accrual rate helps you plan vacations and know exactly how much time you have earned.
What is PTO accrual?
Accrual is the process of earning paid time off in small increments each pay period. Instead of receiving a full bank of vacation days on January 1, an accrual policy credits you a set number of hours every week, two weeks, or month based on your employer's policy.
Converting an annual policy to a per-period rate
To find your accrual rate, divide your total annual PTO hours by the number of pay periods in a year:
Accrual rate for an 80-hour (10-day) annual PTO policy
| Pay schedule | Periods/year | Hours per period |
|---|---|---|
| Weekly | 52 | 1.54 |
| Bi-weekly | 26 | 3.08 |
| Semi-monthly | 24 | 3.33 |
| Monthly | 12 | 6.67 |
For a 15-day (120-hour) policy on a bi-weekly schedule, the rate is 120 ÷ 26 = 4.62 hours per period. For 20 days (160 hours), it is 160 ÷ 26 = 6.15 hours.
Accrual vs. front-loading
Some employers front-load PTO, granting the entire year's allotment up front. Others use accrual so time is earned as you work. Accrual policies often include a cap or a limit on how much can carry over to the next year, so it is worth checking your handbook.
Example: projecting a summer vacation
Suppose you have 40 hours banked today and accrue 3.08 hours every two weeks. Over the next 3 months (about 6 pay periods) you would earn roughly 6 × 3.08 = 18.5 hours, giving you about 58.5 hours — enough for seven full days off.
Frequently Asked Questions
How is PTO accrual calculated?
Divide your annual PTO hours by the number of pay periods per year. For example, 80 hours on a bi-weekly schedule accrues at 80 ÷ 26 = 3.08 hours per pay period.
How much PTO is 3.08 hours per paycheck?
At 3.08 hours per bi-weekly paycheck, you earn about 80 hours (10 days) of PTO per year.
Does unused PTO carry over?
It depends on your employer and state. Some policies allow carryover up to a cap, some pay out unused time, and some follow 'use it or lose it' rules where permitted by law.
Related tools & guides
This guide is for general informational purposes only and is not legal, tax, or financial advice. Labor laws vary by state and change over time. Confirm your specific situation with your employer, HR department, or the U.S. Department of Labor.