What Is PTO? Paid Time Off Explained

By the PTO Calculator Editorial Team • Updated June 2, 2026 • 5 min read

PTO stands for Paid Time Off — hours your employer pays you for even though you aren't working. It's one of the most valuable parts of a job after salary, yet the terminology around it confuses almost everyone at some point. This guide explains what PTO actually is, the different forms it takes, how you earn it, and a glossary of the key terms you'll run into on your pay stub and in your employee handbook.

The Simple Definition

Paid Time Off is any time away from work for which you still receive your normal pay. Instead of clocking in, you draw down a balance of paid hours you've earned. What counts as PTO depends on your employer: at some companies it strictly means vacation, while at others it's a single combined bank covering vacation, illness, and personal days alike.

There is no US federal law requiring private employers to offer paid vacation, so the specifics — how much you get, how you earn it, and whether it's paid out when you leave — come down to your employer's policy and your state's laws.

The Main Types of Paid Time Off

Vacation: planned leisure time you usually request in advance. In several states, accrued vacation is treated as earned wages.
Sick leave: time for illness or medical appointments, often required by state or local law and usually not paid out when you leave.
Personal days: flexible days for appointments, family matters, or observances that don't fit "sick" or "vacation."
Floating holidays: discretionary paid days that substitute for fixed public holidays; they typically expire at year-end.
Consolidated PTO: a single pooled bank covering any of the above, used at your discretion.

We compare the three big categories side by side in Sick Leave vs. PTO vs. Vacation, and cover discretionary days in our floating holidays guide.

How You Earn PTO

There are two broad models. In an accrual system you earn a small slice of your annual allotment every pay period; in a lump-sum system the whole balance lands at once, usually on January 1st or your hire anniversary. A few employers offer unlimited PTO, where you don't accrue a fixed balance at all.

If you're on an accrual plan, the math is simple: divide your annual hours by the number of pay periods in your year. A full walkthrough of every method lives in our guide on how PTO accrual works, and you can compare the two structures in Accrued vs. Unlimited PTO.

See it for yourself: Enter your balance and accrual rate into the PTO Calculator to watch your time off build across the next 30 pay periods and find out exactly when you'll have enough for a trip.

PTO Glossary: Key Terms to Know

Accrual: Earning PTO gradually over time, typically a set number of hours each pay period.
Accrual rate: How fast you earn PTO, such as 4.62 hours per bi-weekly paycheck for a 15-day plan.
Carryover (rollover): PTO you're allowed to carry from one year into the next, often capped at a maximum number of hours.
Carryover cap: The maximum balance you can roll into the new year; anything above it may be forfeited.
Accrual cap (hard cap): A ceiling on your total balance. Once reached, you stop earning new PTO until you use some.
Use-it-or-lose-it: A policy where unused PTO is forfeited after a deadline. See our use-it-or-lose-it guide.
Floating holiday: A discretionary paid day off that substitutes for a fixed holiday and usually expires yearly.
Payout: Cash paid for unused PTO when you leave a job, where required by state law or company policy.
Front-loading (lump sum): Granting the full annual PTO allotment at once rather than accruing it.
Blackout dates: Periods (often busy seasons) when an employer restricts time-off requests.

Frequently Asked Questions

What does PTO stand for?

PTO stands for Paid Time Off: hours your employer pays you for even though you are not working, used for vacation, illness, or personal matters depending on your company's policy.

Is PTO the same as vacation?

Not exactly. Vacation is one use of paid time off. Many employers bundle vacation, sick, and personal days into a single PTO bank you can use for any reason, while others keep them in separate buckets.

How is PTO accrued?

Most employers grant PTO gradually each pay period. For example, 15 days (120 hours) on a bi-weekly schedule earns about 4.62 hours per paycheck. Some employers instead grant the full balance at once as an annual lump sum.

Do you get paid for unused PTO?

It depends on your state and employer policy. Some states treat accrued vacation as earned wages that must be paid out when you leave, while others let employers set their own written rules. Sick time is usually not paid out. See our payout laws guide.

Put It Into Practice

Now that you know what PTO is and how it works, the next step is knowing your own numbers. Open the free PTO Calculator to track your balance, project future accruals, and plan your next vacation with confidence.