Can You Use PTO for Sick Days in California?

Yes, you can use PTO for sick days in California, and if your employer offers a single combined PTO bank rather than separate vacation and sick leave, that PTO is already doing double duty as your legally required paid sick leave. The state guarantees nearly every employee at least 40 hours or five days of paid sick leave per year, and a PTO policy that meets that floor satisfies the law.¹ What matters for your paycheck is whether your employer lumps everything into one bank or keeps sick leave separate, because the two designs produce different results when you get sick and when you leave the job.

How a Combined PTO Bank Satisfies California Sick Leave Law

A single PTO bank is legal in California as long as it meets every requirement of the paid sick leave statute. That means at least 40 hours or five days available each year, the same one-hour-per-30-hours-worked accrual rate (or front-loading the full amount at the start of the year), the same permitted uses, and the same anti-retaliation protections.¹

If your plan checks those boxes, every sick day you take comes out of the same pool you’d use for a vacation. The employer isn’t required to give you a separate sick leave allotment on top. The practical trade-off is obvious: a bad flu week shrinks your beach fund. That’s the price of the combined design, and California leaves that design choice to the employer as long as the legal minimum is met.

The permitted uses matter here because your PTO, when it’s doing the work of sick leave, has to be available for all of them. That covers your own diagnosis, treatment, or preventive care, and the same for a qualifying family member — a spouse, registered domestic partner, child, parent, parent-in-law, grandparent, grandchild, or sibling. Since 2023, you can also designate any one person of your choosing at the time you request leave. Sick leave also covers absences related to domestic violence, sexual assault, or stalking.²

When Your Employer Keeps Sick Leave and Vacation Separate

If your employer maintains a distinct sick leave bank alongside a vacation or PTO bank, a different set of rules kicks in.

When you’re sick, your employer can require you to draw from the designated sick leave bank first. You might prefer to save those hours for a bigger problem later, but the employer generally gets to decide which bank an illness-related absence hits.¹

Once your sick leave is gone, whether you can dip into vacation for additional sick days depends entirely on your employer’s policy. Many allow it. None are required to. If your employer says no, you can take the time unpaid. The key protection: your employer cannot force you to burn vacation or PTO for an illness once your sick leave is exhausted if you’d rather take the time without pay.¹

One more wrinkle for separate-bank employees. Under California’s “kin care” rule, if your employer provides any sick leave beyond the state minimum, you can use at least half a year’s worth of that accrual each calendar year to care for a sick family member. The decision to designate a specific absence as kin care is yours, not your employer’s.³

Why Combined PTO Can Mean a Bigger Final Paycheck

This is where the combined-versus-separate question hits your bank account.

Under California law, accrued vacation is treated as earned wages. When you leave a job for any reason, your employer must pay out every unused vacation hour at your final rate of pay. Forfeiture clauses for vested vacation are illegal.⁴

Sick leave gets the opposite treatment. Your employer owes you nothing for unused sick hours when you quit, get laid off, or retire. One exception: if you’re rehired by the same employer within 12 months, your previously accrued sick leave has to be reinstated.⁵

Now consider what that means for a combined PTO bank. Because PTO can be used for vacation, many employment lawyers take the position that the entire PTO balance is subject to the vacation payout rule. If your employer lumps everything into PTO rather than maintaining a separate sick bank, you may be entitled to a larger final check than a coworker at a split-bank company with the same total balance. Depending on your balance and hourly rate, the difference can run into hundreds or thousands of dollars.

Rules That Apply No Matter Which Setup You Have

Whether your sick time lives in a combined PTO bank or a separate one, a handful of rules protect how you actually use it.

You can request sick leave orally or in writing, and you’re entitled to take it immediately. If the need is foreseeable, like a scheduled appointment, give reasonable advance notice. If you wake up sick, notify your employer as soon as you can.⁵

Two rules employers frequently violate:

No doctor’s note can be required. The paid sick leave statute doesn’t authorize medical certification, and the Labor Commissioner has said an employer cannot deny sick leave based solely on the lack of a note.⁶
You cannot be required to find a replacement worker as a condition of taking sick leave.⁷

You decide how many hours of sick leave to use for a given absence. Your employer can set a minimum increment, but that increment can’t exceed two hours.⁵ Ninety minutes at a doctor’s office cannot be turned into a mandatory half-day off the books.

Your available sick leave balance has to appear on your itemized wage statement or on a separate written document with each paycheck. If your employer offers unlimited sick leave or unlimited PTO, the statement can simply say “unlimited.”⁵ Missing balance information is itself a violation, and checking regularly gives you documentation if a dispute arises later.

Retaliation is prohibited outright. Your employer cannot terminate, demote, suspend, threaten, or otherwise discriminate against you for using accrued sick leave, trying to use it, filing a complaint, or cooperating in an investigation. If any negative action lands within 30 days of you filing a complaint or cooperating, retaliation is presumed and the burden shifts to the employer to prove otherwise.⁷

If Your Employer Denies You Sick Leave

Start with the handbook. Confirm whether your employer runs a combined PTO system or separate banks, and compare the written policy against the minimums above. Gaps between the policy and the law are common, especially at smaller companies.

If the denial looks wrong, put your concern in writing. A short email to your supervisor or HR referencing the specific policy language and asking for a written explanation creates a paper trail. Keep it factual.

When internal channels fail, file a wage claim with the California Labor Commissioner’s Office. Denied paid sick leave counts as unpaid wages. You can submit online, by mail, or in person, and if retaliation is involved you can file a separate retaliation complaint through the same office.⁸

You have three years from the date of the violation to file.⁸ Waiting makes evidence harder to gather.

The Labor Commissioner can order reinstatement, back pay, and payment of the withheld sick days. The penalty for unlawfully withholding sick leave is three times the dollar value of the withheld days, or $250, whichever is greater, up to $4,000 per employee. If the violation caused additional harm such as job loss, the employer faces another $50 per day the violation continued, also capped at $4,000.⁹

Local Ordinances Can Give You More

State law is the floor. Several California cities, including San Francisco, Los Angeles, Oakland, Berkeley, and Emeryville, have their own paid sick leave ordinances, some of which predate the state law and offer more generous terms: faster accrual, higher caps, or broader definitions of covered family. If you work in one of those cities, your employer must comply with whichever law gives you the greater benefit. Your city’s labor office or your employee handbook will tell you whether a local ordinance applies.

1
California Department of Industrial Relations. Paid Sick Leave in California
2
California Department of Industrial Relations. Healthy Workplace Healthy Family Act of 2014 (AB 1522)
3
California Legislative Information. California Labor Code 233
4
California Legislative Information. California Labor Code 227.3
5
California Legislative Information. California Labor Code 246
6
California Department of Industrial Relations. California Paid Sick Leave Frequently Asked Questions
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California Legislative Information. California Labor Code 246.5
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California Department of Industrial Relations. Labor Commissioner’s Office How to File a Wage Claim
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California Legislative Information. California Labor Code 248.5 – Paid Sick Days