- Accrued vacation is the paid time off employees earn incrementally as they work; you calculate it by multiplying an accrual rate by hours worked or pay periods completed.
- The three common methods are lump-sum (granted upfront), per-pay-period (earned each paycheck), and hourly accrual (earned per hour worked).
- No federal law requires paid vacation, so accrual, carryover, and payout rules are set by your policy and by state law, which varies widely.
- Many states treat earned vacation as wages and require unused balances to be paid out at separation, so track accruals all year to avoid a surprise final paycheck.
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How many hours of paid vacation has your newest employee actually earned as of today? If it takes you more than a few seconds to answer, your accrual tracking has a gap, and gaps in vacation accrual turn into payroll errors, compliance risk, and frustrated employees.
Accrued vacation time is simpler to calculate than it looks once you know the method and the rules. This guide walks through what accrued vacation is, the accrual methods, the exact formulas, the carryover and payout rules that differ by state, and the mistakes that cost employers the most.
What is accrued vacation time?
Accrued vacation time is paid time off (PTO) that an employee earns gradually as they work, instead of receiving the full amount at the start of the year. Because it is earned but not yet paid, it sits on your books as a form of accrued payroll, a liability the business owes the employee.
The amounts involved are meaningful. According to SHRM's 2026 Employee Benefits Survey, US employees receive an average of about 9 paid vacation days in their first year, rising to roughly 17 days after five years and 24 days after twenty years of service (SHRM Employee Benefits Survey). To manage that balance correctly, you first need to understand how vacation accrual actually works.
How does vacation accrual work?
Vacation accrual works by giving an employee a set amount of PTO for each unit of time they work, defined by an accrual rate. The more they work, the more they earn, up to any cap you set. Two things drive the result: the rate you use and the method you apply it with.
What is a vacation accrual rate?
A vacation accrual rate is the amount of PTO an employee earns per hour, per pay period, or per year. For example, to give a full-time employee 10 vacation days (80 hours) a year, you divide 80 hours by the roughly 2,080 hours a full-time employee works annually, which gives an accrual rate of about 0.0385 hours of vacation per hour worked.
Our guide on how to calculate PTO accrual breaks down each rate in more detail. Once you have a rate, the next choice is which method to apply it with.
What are the most common accrual methods?
Employers generally use one of three accrual methods, and the right one depends on how your people are paid:
- Lump-sum accrual: the full annual allowance is granted upfront at the start of the year. It is easy to administer but can be costly if an employee uses the time and then leaves early.
- Per-pay-period accrual: employees earn a fixed slice of PTO each paycheck. It ties earning to work performed and smooths the cost across the year.
- Hourly accrual: employees earn PTO for every hour worked. This fits part-time and hourly workers, whose schedules vary week to week.
Some employers layer on other time-off types like floating holidays, or skip accrual mechanics entirely with unlimited PTO. Whichever method you choose, the formula behind it is straightforward.
How do you calculate accrued vacation time?
To calculate accrued vacation time, multiply the accrual rate by the number of hours worked or pay periods completed, then subtract any vacation already used. The exact formula depends on whether the employee is hourly or salaried.
How do you calculate vacation accrual per hour worked?
For hourly employees, accrued vacation is the hours worked multiplied by the hourly accrual rate. The formula is:
Accrued vacation = hours worked x hourly accrual rate
If an employee works 40 hours in a week and the accrual rate is 0.0385, they earn 40 x 0.0385 = 1.54 hours of vacation that week. Over a 2,080-hour year, that adds up to the full 80 hours (10 days) you designed the rate around.
How do you calculate accrual per pay period for salaried employees?
For salaried employees, divide the annual vacation allowance by the number of pay periods in the year. The formula is:
Accrual per pay period = annual vacation days / number of pay periods
An employee who gets 15 vacation days a year and is paid bi-weekly (26 pay periods) accrues 15 / 26 = about 0.58 days each paycheck. Paid semi-monthly (24 periods), the same allowance accrues at 0.625 days per period.
How do you adjust accrued vacation for raises and time taken?
Two adjustments keep the balance accurate. First, subtract vacation as it is taken: an employee with 40 accrued hours who takes 10 has 30 hours left.
Second, when an employee gets a raise, the cash value of their accrued balance is paid at the current rate, so 100 accrued hours that were worth 20 dollars an hour are worth 25 dollars an hour after a raise to that rate.
The same principle governs corrections like back pay, and it is separate from how you treat overtime. Here is how the three methods compare at a glance.
| Accrual method | How it is calculated | Example (10 days a year) | Best fit |
|---|---|---|---|
| Lump-sum | Full allowance granted upfront | 80 hours available on day one | Simple policies, salaried staff |
| Per pay period | Annual days / pay periods | About 0.58 days per bi-weekly check | Most salaried employees |
| Hourly | Hours worked x accrual rate | 1.54 hours per 40-hour week | Part-time and hourly workers |
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Getting the math right is only half the job. The rules for keeping and paying out that balance are set by law, and they differ from state to state.
What are the rules for carrying over unused vacation?
Carryover rules are set by your company policy and by state law, not by any federal standard. Employers generally choose one of three approaches: let unused days roll over, cap the rollover at a set number, or require employees to use the time by year-end.
The use-it-or-lose-it approach is where employers get caught, because several states restrict it. California is the clearest example. Its Division of Labor Standards Enforcement states that a policy that provides for the forfeiture of vacation pay that is not used by a specified date (use it or lose it) is an illegal policy under California law.
Spell out your rules clearly in your employee handbook, and align them with how you handle a longer leave of absence too.
A growing number of companies sidestep carryover entirely with unlimited time off, an approach Netflix popularized and documented in the book No Rules Rules by Reed Hastings and Erin Meyer. Even then, the harder question follows: what do you owe when someone leaves?
Do employers have to pay out accrued vacation when an employee leaves?
It depends on your state, because there is no federal requirement. The US Department of Labor is explicit that the Fair Labor Standards Act (FLSA) does not require payment for time not worked, such as vacations, sick leave or holidays, and that these benefits are a matter of agreement between employer and employee.
State law fills the gap. Many states, including California, treat earned vacation as wages that must be paid out in the final paycheck, which is different from discretionary severance pay. Show the payout clearly on the employee's final payslip. Because the rules vary this much, the biggest risks come from a handful of avoidable mistakes.
What are the most common vacation accrual mistakes?
Most accrual problems come from weak tracking and from ignoring state-level rules. These are the ones to watch for:
- Running one policy across every state: Carryover and payout rules differ, so a single national policy can be non-compliant in states like California. Build state rules into your payroll administration from the start.
- Not tracking accrual in real time: Spreadsheets drift and create disputes. An automated payroll system updates balances every cycle and removes manual error.
- Forgetting to revalue payouts after a raise: Accrued hours are paid at the current wage, so a pay rise increases the value of the whole unused balance, not just future accrual.
- Treating accrued vacation as something you never owe: In many states it is a wage liability that follows the employee to their final paycheck, so it belongs in your cost planning all year.
Avoid those four and your accrual stays accurate, compliant, and cheap to run. If you want to go deeper on the systems and adjacent topics behind good PTO management, the resources below help.
Choosing systems to automate all this? Compare the best HR management software, weigh HRIS vs HRMS, see how Paylocity stacks up against ADP, review the top Rippling alternatives, and understand EOR vs payroll.
For the wider picture, see our guides to running payroll, the global payroll guide and what global payroll involves, plus employee compensation, variable pay, and the employee onboarding process.
And if your team spans borders or contractors, read up on international HR management, contractor tax forms, self-employed vs contractor status, and paternity leave. When you would rather hand the whole job to a partner, here is where we come in.
Who should manage your team's vacation accrual and payroll?
Wisemonk is an India-native Employer of Record (EOR) that takes payroll, PTO accrual, benefits, and compliance off your plate, so you never miscalculate an accrual or miss a payout again. We act as the legal employer, run accurate accrual every pay cycle, apply the right carryover and payout rules, and provision the liability so exits are never a surprise.
Teams trust us to carry that load. See how OneReach.ai built a high-impact marketing and growth team fast and efficiently, and how Onform built its engineering team to accelerate its product roadmap.
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Frequently asked questions
How do you calculate accrued vacation time?
To calculate accrued vacation time, multiply the accrual rate by the hours worked or pay periods completed, then subtract vacation already used. For hourly workers, accrued vacation equals hours worked times the hourly accrual rate. For salaried workers, divide the annual allowance by the number of pay periods to get the amount earned each paycheck.
What is a typical vacation accrual rate?
A common rate is about 0.0385 hours of vacation per hour worked, which gives a full-time employee 80 hours (10 days) over a 2,080-hour year. Rates rise with tenure at many employers, and the exact figure is set by company policy since no federal law mandates paid vacation.
Is there a federal law requiring paid vacation in the US?
No. The US Department of Labor confirms that the Fair Labor Standards Act does not require payment for time not worked, including vacation, so paid vacation is a matter of agreement between employer and employee. State laws, however, can regulate how accrued vacation is carried over and paid out.
Can an employer use a use-it-or-lose-it vacation policy?
It depends on the state. Some states allow use-it-or-lose-it policies, but others restrict them. California, for example, treats earned vacation as wages and considers forfeiture of unused vacation illegal, so employers there must let it carry over or pay it out.
Do employers have to pay out unused vacation when an employee leaves?
There is no federal requirement, but many states require unused accrued vacation to be paid out in the final paycheck because they treat it as earned wages. Whether you owe a payout, and how quickly, depends on the state where the employee works, so always check local law before separation.
How do raises affect accrued vacation pay?
When an employee receives a raise, the cash value of their entire accrued vacation balance is calculated at the new, higher rate, not the rate in effect when the time was earned. Employers should update payroll so any payout reflects the current wage, or they risk underpaying the employee.
How do you calculate accrued vacation for part-time employees?
Part-time vacation is usually prorated using the hourly accrual method: multiply the hours actually worked by the accrual rate. A part-timer working half the hours of a full-time employee accrues roughly half the vacation, which keeps the benefit fair and proportional to time worked.
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