No — under California law, PTO is not the same as sick leave. Paid sick leave is a benefit every California employer must provide under a specific statute, while general PTO covering vacation and personal days is voluntary. Once an employer offers PTO, though, it becomes protected as earned wages, which is where most of the practical differences between the two come from: different caps, different carryover rules, different rights when you leave the job, and different treatment if an employer tries to blend them into one bank.
Sick Leave Is Mandatory; PTO Is Not
The Healthy Workplaces, Healthy Families Act of 2014 requires nearly every California employer to provide paid sick leave to employees, including part-time and temporary workers.1California Department of Industrial Relations. Healthy Workplace Healthy Family Act of 2014 (AB 1522) Employees earn at least one hour of paid sick leave for every 30 hours worked, or the employer can front-load the full annual amount instead of tracking accrual.
Since January 1, 2024, the minimum amount of sick leave an employee can use each year is 40 hours or five days, up from the original 24 hours or three days.1California Department of Industrial Relations. Healthy Workplace Healthy Family Act of 2014 (AB 1522) Unused sick hours carry over year to year under an accrual policy, though the employer can cap actual annual use at 40 hours or five days.2California Legislative Information. California Code LAB 246 With a full front-load of 40 hours or five days each year, no carryover is required.
General PTO and vacation time work differently. California does not require employers to offer either one. But there is no separate “PTO law” mandating additional paid time on top of the sick leave statute.
What Sick Leave Covers
You can use accrued sick time for your own diagnosis, care, or treatment, and for preventive care.1California Department of Industrial Relations. Healthy Workplace Healthy Family Act of 2014 (AB 1522) It also covers care for a qualifying family member: parent, child, spouse, registered domestic partner, grandparent, grandchild, sibling, or a designated person you choose.3California Department of Industrial Relations. California Paid Sick Leave: Frequently Asked Questions The “designated person” category can include someone who is not a blood relative or legal spouse. Sick leave is also available if you are a victim of domestic violence, sexual assault, or stalking, for medical treatment, counseling, safety planning, or related legal proceedings.
Reinstatement If You Return
If you leave a job and come back to the same employer within 12 months, your previously accrued and unused sick leave must be restored.3California Department of Industrial Relations. California Paid Sick Leave: Frequently Asked Questions That reinstatement rule does not apply to vacation or PTO, which is paid out at separation and starts fresh on rehire.
PTO Is Treated as Earned Wages
Once an employer offers vacation or PTO, Labor Code Section 227.3 treats each accrued hour as vested compensation the employee owns.4California Legislative Information. California Code LAB 227.3 Two consequences follow.
First, use-it-or-lose-it policies are illegal for vacation and PTO. An employer cannot force you to forfeit accrued vacation at year-end because that would amount to withholding earned wages. Second, employers can set a reasonable accrual cap that stops new hours from accumulating until the balance drops, but they cannot take back hours already earned.5California Department of Industrial Relations. Vacation FAQ The cap has to be genuinely reasonable and cannot function as disguised forfeiture.
Standalone sick leave does not carry those wage-vesting protections.2California Legislative Information. California Code LAB 246 Employers can cap annual sick leave use at 40 hours, and unused sick time does not have to be paid out when you leave.
When Employers Combine PTO and Sick Leave
Many California employers use a single bank of hours covering vacation, personal time, and sick leave. That is legal, but only if the combined policy meets every requirement of the sick leave law.1California Department of Industrial Relations. Healthy Workplace Healthy Family Act of 2014 (AB 1522) To qualify, the policy has to accrue at least one hour for every 30 hours worked (or front-load at least 40 hours annually), let employees use time for every medical, preventive-care, and safety-related reason the sick leave law covers, and make at least 40 hours or five days available each year for those health-related uses.
If the policy language does not clearly permit use for family care, preventive health, or domestic-violence-related needs, it fails the sick leave mandate, no matter how generous the overall hours look.
Combining the two also has a financial consequence at separation: the whole pool becomes subject to the wage-vesting rules that apply to vacation. The employer cannot later carve out the sick-leave portion to avoid paying it.
What Happens to Each When You Leave
The clearest place the difference matters is the final paycheck. Vested, unused vacation or PTO must be paid out at your final rate of pay when you leave, whether you were fired or resigned.4California Legislative Information. California Code LAB 227.3 The statute prohibits any policy forcing forfeiture of vested vacation at termination.6California Legislative Information. California Code LAB 227.3
Standalone sick leave generally does not have to be paid out when employment ends.5California Department of Industrial Relations. Vacation FAQ Employers who keep sick leave in a separate bank can let those hours expire without cutting a check.
With an integrated PTO policy, that split disappears. Because the sick-leave hours cannot be separated from the vacation hours once they share a bank, the whole balance is treated as vested wages and paid in full.5California Department of Industrial Relations. Vacation FAQ
Protections That Apply to Sick Leave But Not PTO
California prohibits employers from punishing you for using or requesting accrued sick leave. An employer cannot fire, demote, suspend, or otherwise discriminate against an employee for using paid sick days, filing a complaint about sick leave violations, or cooperating with an investigation.3California Department of Industrial Relations. California Paid Sick Leave: Frequently Asked Questions
Attendance-point systems are a common trap. Counting a lawful sick day as an “occurrence” or point is itself a violation. Labor Code Sections 233 and 234 treat any discipline tied to the use of accrued sick leave as an automatic violation.3California Department of Industrial Relations. California Paid Sick Leave: Frequently Asked Questions Once you exhaust your accrued sick hours, later absences may be counted under a standard attendance policy.
Vacation and PTO do not carry the same anti-retaliation shield built into the sick leave statute. They are protected as wages, not as a specific right to be absent.
How Sick Leave and PTO Relate to FMLA
The federal Family and Medical Leave Act is a separate layer, not a substitute for either sick leave or PTO. FMLA provides up to 12 weeks of unpaid, job-protected leave per year for qualifying health conditions, but you must have worked for the employer for at least 12 months, logged at least 1,250 hours in the past year, and work at a location where the employer has 50 or more employees within 75 miles.7U.S. Department of Labor. Fact Sheet #28: The Family and Medical Leave Act
FMLA also requires a “serious health condition” involving inpatient care or ongoing treatment by a healthcare provider. Common issues like a cold, the flu, earaches, or routine dental work typically do not qualify.8eCFR. 29 CFR 825.113 – Serious Health Condition California paid sick leave covers those minor situations; FMLA does not.
When both laws apply, an employer can require your California paid sick leave or PTO to run at the same time as FMLA leave. The 12 weeks of FMLA protection count down alongside your paid leave balance, rather than stacking on top of it.