Accrued Time Off: Definition, Accrual Math, and Carryover Rules
Accrued time off is paid leave an employee has earned but not yet used, built up per pay period, per hour worked, or as a front-loaded annual grant; carryover, caps, and use-it-or-lose-it rules decide what happens to the balance at year end, and state law decides whether it must be paid out.
Accrued time off is the balance of paid leave an employee has earned under a policy but not yet taken. The word "accrued" matters: the time was earned incrementally, by working, and in many states an earned balance is treated as wages the employee owns. That is why the questions employers ask about it, whether it carries over, whether it can be capped, whether it expires, and whether it is paid out at termination, have legal answers that vary by state, not just policy answers.
What Is Accrued Time Off?
Paid time off reaches an employee in one of two ways. Under a front-loaded policy, the full annual allotment appears on a date, usually January 1 or the hire anniversary, and the employee draws it down. Under an accrual policy, the allotment is earned in pieces across the year, and the balance at any moment is what has been earned minus what has been used. "Accrued time off" refers to that balance, though the phrase is also used loosely for any unused PTO.
Accrual policies exist because they protect the employer from paying out a full year's leave to someone who leaves in February, and because they tie the benefit to time actually worked. The tradeoff is administration: someone has to calculate the balance every pay period, which is why accrual tracking is a standard feature of leave software. SHRM's 2025 Employee Benefits Survey found that 68 percent of employers combine vacation and sick leave into a single PTO bank, and that average PTO rises with tenure, from 12 days for employees with less than a year of service to 26 days at 20 or more years (SHRM, 2025 Employee Benefits Survey).
How Accrual Is Calculated
Three methods cover nearly every policy. The examples use a 15-day (120-hour) annual allowance for a full-time employee.
Per pay period. The annual allowance is divided by the number of pay periods.
| Pay frequency | Periods per year | Hours accrued per period |
|---|---|---|
| Weekly | 52 | 120 ÷ 52 = 2.31 |
| Biweekly | 26 | 120 ÷ 26 = 4.62 |
| Semi-monthly | 24 | 120 ÷ 24 = 5.00 |
| Monthly | 12 | 120 ÷ 12 = 10.00 |
Per hour worked. The allowance is divided by the hours in a full-time year, and the employee earns that fraction for every hour on the clock. 120 ÷ 2,080 = 0.0577 hours of PTO per hour worked, which is the rate state paid sick leave laws often express as "one hour per 30 hours worked" (0.0333). This method is the fair one for part-time and variable-hour staff, because a 25-hour-a-week agent accrues proportionally: 25 × 0.0577 = 1.44 hours a week, or 75 hours a year.
Front-loaded. 120 hours on the grant date, no math, but a prorated grant for mid-year hires (a July 1 hire receives 60 hours) and a clawback question if the employee uses more than they would have accrued before leaving. The PTO accrual calculator runs all three methods with tenure tiers.
Worked example: an agent hired on March 10 on a biweekly accrual of 4.62 hours, who takes 16 hours in June and 24 hours in September, has by December 31 accrued about 21 pay periods × 4.62 = 97 hours, used 40, and holds a balance of 57 hours going into year end. What happens to those 57 hours is the carryover question.
Carryover, Caps, and Use It or Lose It
Year-end rules come in three designs:
- Full carryover. The balance rolls into the new year without limit. Simple, but balances grow, and in payout states a large balance is a liability on the books.
- Capped carryover or accrual cap. The employee may carry over a fixed amount (for example 40 hours), or accrual stops once the balance reaches a ceiling (for example 1.5 times the annual allowance) and resumes when time is used. Caps are the most common compromise.
- Use it or lose it. Unused time is forfeited on a date. This is the design state law restricts.
California is the clearest example of the restriction. The state's Labor Commissioner explains that there is no legal requirement to provide vacation at all, but once an employer does, a policy "that provides for the forfeiture of vacation pay that is not used by a specified date" is illegal under California law, while "a vacation policy that places a 'cap' or 'ceiling' on vacation pay accruals is permissible." At separation, "for any reason whatsoever," unused earned vacation must be paid at the final rate of pay. A reasonable waiting period before accrual begins is allowed as long as it is not a subterfuge for forfeiture (California DLSE, vacation FAQ). Several other states take similar positions on forfeiture or payout, and others leave it to the written policy. The PTO payout laws by state guide lists where each state stands, and the state labor law guides cover the paid sick leave rules, which usually have their own carryover minimums.
Sick Leave Accrual Has Separate Rules
Where a state or city mandates paid sick leave, the accrual rate, the carryover minimum, and the annual usage cap are set by that law, not by the PTO policy. A combined PTO bank must meet the sick leave law's terms for the whole bank or be split into two balances.
Accrued Time Off vs Related Terms
| Term | What it is | Relationship to the balance |
|---|---|---|
| Accrued time off | Earned, unused paid leave | The balance itself |
| Front-loaded PTO | The full year granted at once | An alternative to accrual |
| Unlimited PTO | No balance, requests approved case by case | Nothing accrues, so nothing is paid out |
| Unpaid time off | Time off with no pay, usually when the balance is exhausted | Taken after the balance reaches zero |
| Comp time | Time off in lieu of overtime pay | A separate balance, lawful in the public sector only |
| Banked hours | Hours carried forward under a hours-averaging arrangement | A separate concept, not PTO |
Accrued Time Off in Contact Centers and Remote Teams
Contact centers run PTO accrual on hours, not days, because agents work 8-, 9-, and 10-hour shifts and partial-day requests are the norm. The workforce team also manages the balance from the other direction: planned leave is a component of shrinkage, so a floor where everyone carries 60 hours into the fourth quarter has a predictable December staffing problem. Many centers set a carryover cap precisely to flatten that peak, and pair it with a bidding process for popular weeks so that the balance gets used across the year. The PTO request form template is built for that workflow.
For remote and distributed teams, the accrual complication is jurisdiction. An employee in California, one in Texas, and one in Ontario can sit in the same team with three different rules on forfeiture and payout, and a single company-wide "use it or lose it" clause is unlawful for at least one of them. Leave software that holds a policy per location, rather than one policy per company, is the practical answer.
How to Track Accrued Time Off
Accrual tracking means applying the policy's rate to each pay period or to each hour worked, subtracting approved leave as it is taken, enforcing caps, and running the year-end rule automatically. HiveDesk does this in its leave management module: each leave type has an accrual rule (per period, per hour worked, or front-loaded), tenure tiers, a cap, and a carryover setting, and because HiveDesk also records hours worked, per-hour accrual is calculated from actual time rather than an assumed schedule. Employees see their balance and request time from it; managers approve against the team calendar and the shift schedule. HiveDesk costs $5 per user per month with all features included, and the 14-day free trial needs no credit card. The leave management feature has the setup details, and the PTO explainer covers policy design more broadly.
Accrual Calculated From Hours Actually Worked
HiveDesk applies per-period or per-hour accrual rules, tenure tiers, caps, and carryover automatically, with balances employees can see. $5/user/month, 14-day free trial.
Related Terms
- Unpaid time off: what happens after the balance is used up
- Comp time: a different kind of earned time balance
- Banked hours: hours carried forward under averaging schemes
- Shrinkage: how planned leave enters the staffing forecast
- PTO accrual calculator: run the math for any policy
- PTO payout laws by state: where payout and forfeiture rules apply
Frequently Asked Questions
What does accrued time off mean?
Paid leave an employee has earned under the policy but has not yet used. Under an accrual policy the balance grows each pay period or each hour worked; under a front-loaded policy the balance is the annual grant minus usage.
How is accrued PTO calculated?
Divide the annual allowance by the number of pay periods (120 hours ÷ 26 biweekly periods = 4.62 hours per period) or by annual hours (120 ÷ 2,080 = 0.0577 hours per hour worked), then multiply by the periods or hours worked and subtract time used.
Does accrued time off carry over?
It depends on the policy and the state. Policies can allow full carryover, cap it, or in some states require forfeiture. California prohibits use-it-or-lose-it forfeiture but permits accrual caps; other states allow forfeiture if the policy says so in writing.
Do employers have to pay out accrued time off when you quit?
In some states, including California, yes, for any reason of separation, at the final rate of pay. In others, payout depends on the written policy. State paid sick leave is usually not required to be paid out.
Can an employer cap PTO accrual?
Generally yes. An accrual cap stops the balance growing past a ceiling until time is used. This is distinct from forfeiture, which takes away time already earned, and California treats the two differently.
What is the difference between accrued and front-loaded PTO?
Accrued PTO is earned gradually through the year. Front-loaded PTO is granted in full on a date, then drawn down. Front-loading is simpler for employees; accrual limits the employer's exposure to early departures and unearned use.
Browse more definitions in the HiveDesk glossary.