Types of Employee Leave: PTO vs Sick Leave vs FMLA

Disclaimer: This article is general information only, not legal, tax, or HR advice. Leave laws vary widely by state and locality. Check your employer’s policy, your state labor department, or a qualified attorney for your specific situation.

Leave vs Pay: The Distinction That Clears Up the Confusion

PTO, sick leave, and FMLA get lumped together because they all put you out of the office. But they answer two completely different questions.

PTO and paid sick leave answer one: will I still get paid? They are money in your pocket while you are away.

FMLA answers the other: will I still have a job? It is a federal law that protects your position, not a benefit that pays you.

That one distinction untangles most of the confusion. PTO and sick leave are pay. FMLA is protection. You do not pick one off a menu instead of the others. In real life they stack on top of each other, and how that works is the whole point of this article.

Paid Time Off (PTO): One Flexible Bank of Paid Hours

PTO is a bank of paid hours your employer gives you to use however you want: a vacation, a dentist appointment, a sick kid, a mental health day. Many employers now roll vacation, personal, and sick time into one combined PTO pool.

No federal law requires PTO. Your employer chooses to offer it, so the rules live in your company handbook rather than a statute.

Most PTO is earned through accrual: you bank a set number of hours for every pay period or hour worked. Some employers instead hand you a lump grant at the start of the year. If you want to see how the math works, our guide on how to calculate PTO accrual walks through it.

Two wrinkles worth knowing. “Use it or lose it” policies wipe unused hours at year-end, which is legal in some states and restricted in others. And “unlimited PTO” is not really unlimited: it usually means there is no accrued balance to track, and often no payout when you leave. What happens to your balance at separation depends on state law, which our PTO payout guide breaks down state by state.

On a timesheet, PTO used shows up as paid hours where you did no work. That distinction matters later, because paid-leave hours generally do not count toward the 40-hour overtime threshold.

Paid Sick Leave: Hours Reserved for Health

Paid sick leave is narrower than PTO. It is reserved for health reasons: your own illness, caring for a sick family member, preventive care, or a doctor’s visit. Some laws also cover absences tied to domestic violence or a public health closure.

The part that surprises people is that no federal paid sick leave law covers private-sector workers. Whether you get it depends on a patchwork of state and city rules stacked on top of whatever your employer offers.

As of 2026, more than a dozen states plus Washington, D.C., along with many individual cities, require employers to provide paid sick leave. The rules vary a lot. A common structure is one hour of sick leave earned for every 30 hours worked, with an annual cap. Our roundup of paid sick leave laws by state covers where you stand.

The key difference from general PTO: dedicated sick leave can only be used for qualifying health reasons, and in mandated states your employer usually cannot demand a doctor’s note for short absences or discipline you for using it. Combined PTO gives you more flexibility but fewer of those legal protections.

FMLA: Unpaid, Job-Protected Federal Leave

The Family and Medical Leave Act is the odd one out, because it does not pay you a cent. What it does is guarantee your job while you handle a major life event.

Under the FMLA, an eligible employee gets up to 12 workweeks of unpaid, job-protected leave in a 12-month period (up to 26 weeks to care for a covered servicemember). When you return, your employer must give you the same job or an equivalent one, with the same pay, benefits, and terms.

FMLA leave is available for specific qualifying reasons:

The birth, adoption, or foster placement of a child
Your own serious health condition
Caring for a spouse, child, or parent with a serious health condition
Certain military family needs (a “qualifying exigency”)

Not everyone is covered. To be eligible, you generally must meet all three of these tests:

You have worked for the employer for at least 12 months (they do not have to be consecutive).
You logged at least 1,250 hours of service in the 12 months before your leave.
You work at a location with at least 50 employees within 75 miles.

Covered employers include private companies with 50 or more employees, plus all public agencies and public schools regardless of size.

FMLA does not have to be taken in one solid block. Intermittent leave lets you use it in smaller chunks, such as leaving early for chemotherapy appointments or taking occasional days for a chronic condition, as long as it is medically necessary.

The headline to remember: unpaid by default, job protected always. That gap between “protected” and “paid” is exactly where PTO and sick leave come back into the story.

How They Interact: Getting Paid During FMLA

This is the part most explainers skip. FMLA protects your job but sends no money, so how do people pay rent during 12 weeks off?

They substitute paid leave into the unpaid FMLA period, and the two run concurrently. You draw down your PTO or paid sick hours to keep your paycheck coming, and those same weeks count against your 12-week FMLA entitlement. You are paid and protected at the same time.

Take Maria, who needs eight weeks off after surgery. Those eight weeks are FMLA-protected, so her job is safe. She has six weeks of PTO banked. She uses that PTO during the first six weeks, so her paycheck keeps arriving as normal, and those weeks also burn down her FMLA. Weeks seven and eight are unpaid, but her job is still protected. When she comes back, her position is waiting.

Can your employer require you to use PTO this way? Often yes for regular PTO or vacation, if the company policy says so. But there are limits. Under 2025 DOL guidance, an employer generally cannot force you to burn PTO while you are also receiving:

Workers’ compensation benefits
Short-term disability payments
State paid-family-leave benefits

In those cases you get to keep your PTO in the bank rather than draining it alongside a benefit that is already paying you.

That third bullet points to the newest layer. A growing number of states now run Paid Family and Medical Leave (PFML) programs that actually pay a portion of your wages during a covered leave, filling the “unpaid” hole in FMLA. About 14 states plus D.C. were paying benefits in 2026, including California, Colorado, Connecticut, Massachusetts, New Jersey, New York, Oregon, Rhode Island, and Washington, with Maryland and Virginia scheduled to start in 2028. Where these programs exist, FMLA still protects your job while the state program helps cover your income.

Side-by-Side Comparison and Tracking Your Leave

Here is the whole picture in one table.

	PTO	Paid Sick Leave	FMLA
Paid?	Yes	Yes	No (unpaid by default)
Job-protected?	Only if used during FMLA/PFML	Protected use in many states	Yes, up to 12 weeks
Who requires it	No one (employer benefit)	Some states and cities	Federal law
Typical length	Set by employer	Small annual bank	Up to 12 weeks (26 for military caregiver)
Used for	Anything	Health reasons	Serious health or family events

The practical takeaway: these are not three doors you choose between. PTO and sick leave answer “will I be paid,” FMLA answers “is my job safe,” and in a real leave you often use them together.

One thread runs through all of it: accurate hours worked. That 1,250-hour FMLA test is not a guess. You either have the hours or you do not, and the burden of knowing usually falls on you. Watching your PTO and sick balances against real worked time matters just as much.

That is where hour tracking earns its keep. Timeclock44 logs your hours worked, weekly totals, and multiple jobs, and exports a clean timesheet as a PDF or CSV. When you need to show you crossed the 1,250-hour line, or reconcile how much PTO you have actually earned, having your own record beats trusting a payroll system you cannot see into. Pair it with the free calculators for overtime and timecard math, and you have the numbers side covered while HR handles the leave paperwork.

Timeclock44 tracks your hours. It does not manage leave balances or give legal advice. For the rules that apply to your job, your employer’s handbook and your state labor department are the sources that matter.

References

DOL Fact Sheet #28: The Family and Medical Leave Act. Official overview of FMLA coverage, eligibility (12 months / 1,250 hours / 50 employees), qualifying reasons, and the 12-week entitlement.
DOL FMLA Frequently Asked Questions. Department of Labor answers on unpaid leave, substituting paid leave, concurrency, and job restoration.
DOL Sick Leave Topic Page. Confirms there is no federal law requiring paid sick leave or PTO for private employers.
29 CFR 825.110: Eligible Employee (Cornell LII). The regulation defining the FMLA eligibility tests in detail.
States With Paid Family Leave in 2026. Current landscape of state PFML programs and their start dates.

Frequently Asked Questions

Is FMLA paid or unpaid?

FMLA is unpaid by federal law. It protects your job, not your paycheck. You can use accrued PTO or paid sick leave, or state paid-family-leave benefits where they exist, to get paid during FMLA leave, but the FMLA law itself does not require your employer to pay you.

Can my employer make me use my PTO during FMLA leave?

Often yes for regular PTO or vacation, if the employer's policy says so, in which case the paid leave and the FMLA leave run at the same time. But under 2025 DOL guidance, an employer generally cannot force you to burn PTO while you are also drawing workers' compensation, short-term disability, or state paid-leave benefits.

What's the difference between sick leave and FMLA?

Paid sick leave keeps your paycheck coming for health-related absences, and it is created by state or local law or by your employer, not by any federal statute. FMLA is a federal law that protects your job for up to 12 weeks of leave for a serious health condition or family need, but it does not pay you.

Do I qualify for FMLA?

To be eligible for FMLA, you generally need to have worked for a covered employer for at least 12 months, logged at least 1,250 hours of service in the prior 12 months, and work at a location with at least 50 employees within 75 miles. All three tests must be met.

Does PTO run concurrently with FMLA?

Yes. When you or your employer substitute accrued paid leave into unpaid FMLA, both run at the same time. You draw down PTO or sick hours to stay paid, and those same weeks count against your 12-week FMLA entitlement, so you are paid and job-protected simultaneously.

Which states have paid family and medical leave?

About 14 states plus Washington, D.C. had mandatory paid family and medical leave programs paying benefits in 2026, including California, Colorado, Connecticut, Delaware, Massachusetts, Minnesota, New Jersey, New York, Oregon, Rhode Island, and Washington. Maryland and Virginia programs are scheduled to begin in 2028.