beginner5 min read• 5 steps
How to Calculate PTO Accrual
Learn the formulas and methods for calculating employee PTO accrual accurately.
1
Choose your accrual method
There are several ways to calculate PTO accrual:
**Hourly Accrual:** Employees earn PTO per hour worked
- Formula: Hours Worked × Accrual Rate = PTO Earned
- Example: 80 hours worked × 0.05 = 4 hours PTO
**Per Pay Period:** Fixed amount each paycheck
- Formula: Annual PTO ÷ Pay Periods = PTO per Period
- Example: 120 hours ÷ 26 pay periods = 4.62 hours per period
**Monthly Accrual:** Fixed amount each month
- Formula: Annual PTO ÷ 12 = Monthly PTO
- Example: 120 hours ÷ 12 = 10 hours per month
💡 Tip: Hourly accrual is most accurate for variable-hour employees
2
Determine annual PTO allowance
Decide how much PTO employees earn annually, typically based on tenure:
- Entry level: 10 days (80 hours)
- 2-5 years: 15 days (120 hours)
- 5-10 years: 20 days (160 hours)
- 10+ years: 25 days (200 hours)
Benchmark against your industry and competitors.
💡 Tip: Be competitive but sustainable. Unused PTO is a liability.
3
Calculate the accrual rate
**For hourly accrual:**
Accrual Rate = Annual PTO Hours ÷ Annual Work Hours
Example: 80 PTO hours ÷ 2,080 work hours = 0.0385 hours PTO per hour worked
**For per-pay-period:**
Bi-weekly: Annual PTO ÷ 26
Semi-monthly: Annual PTO ÷ 24
Weekly: Annual PTO ÷ 52
💡 Tip: Use enough decimal places to avoid rounding errors over time.
4
Handle partial periods
For new hires or terminations mid-period:
**Prorate calculation:**
(Days Worked in Period ÷ Total Days in Period) × Full Period Accrual = Prorated Accrual
Example: New hire starts mid-month
(15 days ÷ 30 days) × 10 hours = 5 hours accrued
💡 Tip: Have a clear policy on when accrual starts (hire date vs first full period).
5
Apply accrual caps
If you have a cap, stop accrual when reached:
1. Calculate accrual as normal
2. Add to current balance
3. If result exceeds cap, set balance to cap
4. Track "lost" accrual for reporting
Example: 8 hours accrued + 175 balance = 183, but cap is 180
New balance: 180 hours (3 hours not accrued)
Common Mistakes to Avoid
- ✗Using the wrong number of work hours (use 2,080 for full-time)
- ✗Not prorating for part-time employees
- ✗Rounding too aggressively, causing discrepancies
- ✗Forgetting to accrue during paid leave
- ✗Not accounting for overtime in hourly accrual
Helpful Tools
Related Guides
How to Track PTO in a Spreadsheet
Set up a simple but effective PTO tracking spreadsheet for small teams.
How to Create a PTO Policy
Step-by-step guide to developing a competitive and compliant paid time off policy.
How to Handle PTO Payout at Termination
Correctly calculate and process PTO payouts when employees leave your company.