PTO Carryover Rules: How Carryover Caps Work, With Worked Examples

Carryover vs Rollover: Same Concept, Different Names

"Carryover" and "rollover" are used interchangeably in most PTO policies to mean the same thing: unused accrued days that move from the current year into the next, rather than resetting to zero or being forfeited at year-end. Some employers use "rollover" specifically for automatic year-end carryover and reserve "carryover" for a discretionary manager-approved exception - but this distinction isn't standard, so a policy should define its own terms explicitly rather than relying on either word alone.

Why Carryover Caps Exist

Without a cap, unused PTO balances can grow indefinitely for employees who rarely take time off, creating a larger accrued-liability line on the employer's books and, in states that require payout of accrued PTO, a larger payout obligation whenever that employee eventually leaves. A carryover cap limits how much of an unused balance survives into the new year, independent of the accrual cap that limits the balance during the year itself.

The accrual cap and the carryover cap are often different numbers. In a common structure, the accrual cap is 15 days (the maximum balance at any point during the year) while the carryover cap is only 5 days (the maximum that survives the year-end transition) - the carryover cap is frequently lower than the accrual cap because it specifically targets year-end liability, not day-to-day balance size.

Worked Example: Year-End Carryover Calculation

An employee accrues at 1.25 days/month (15 days/year) with a 15-day accrual cap and a 5-day carryover cap. By December 31, this employee has accrued and taken enough PTO to end the year with 8 unused days.

Step 1: Compare the unused balance (8 days) to the carryover cap (5 days). Step 2: Since 8 exceeds 5, only 5 days carry over into January 1 of the new year. Step 3: The remaining 3 days (8 - 5) are handled according to the written policy and applicable state law - forfeited if the employer's state permits use-it-or-lose-it forfeiture and the policy states this clearly, or paid out if the state treats accrued PTO as earned wages requiring payout (see our guides on use-it-or-lose-it PTO and how to calculate PTO payout for the state-by-state detail on which applies where).

The new year then starts this employee at a 5-day balance, and accrual resumes from there at the normal 1.25 days/month rate, subject to the same 15-day accrual cap for the new year.

How Carryover Interacts With Use-It-or-Lose-It

Carryover and use-it-or-lose-it are not the same policy, but they're often combined: use-it-or-lose-it defines the calendar deadline and what happens to unused time at that deadline (forfeit or pay out), while a carryover cap defines how much survives that deadline before the remainder is subject to the use-it-or-lose-it rule. A policy with a 5-day carryover cap and use-it-or-lose-it forfeiture for anything above that cap is a common combination: employees keep meaningful flexibility (5 days) without the employer accumulating unlimited liability from balances that never get used.

Where a state prohibits forfeiture of earned PTO outright, the carryover cap functions differently: instead of forfeiting the excess, the employer typically pays it out at year-end or applies a different mechanism permitted by that state, since flat forfeiture isn't a legal option there.

Modeling Your Own Carryover Numbers

Carryover math depends on three inputs specific to your policy: the accrual rate, the accrual cap, and the carryover cap - changing any one of them changes the year-end forfeiture-or-payout amount for every employee. Our free PTO accrual calculator (tabletemplates.com/free/pto-accrual-calculator-excel/) lets you run the accrual side of this calculation (rate, months, annual cap) - note the free calculator adds carryover as entered, without capping it; the free PTO tracker applies the carryover cap for you automatically at year-end for an entire team's balances.