In most cases, no. Under California’s Healthy Workplaces, Healthy Families Act, an employer cannot deny sick time to an eligible worker who has accrued hours and a qualifying reason to use them. There are a few narrow exceptions, and understanding where they end is the difference between a lawful denial and one you can act on.
You qualify for paid sick leave if you have worked in California for at least 30 days within a year of your start date. Part-time, temporary, and seasonal workers are covered. You accrue at least one hour of paid sick time for every 30 hours worked, but you cannot actually use the hours until your 90th day of employment. As of January 1, 2024, employers must provide at least 40 hours or five days per year, either through accrual or by frontloading the full amount at the start of a 12-month period.1California Department of Industrial Relations. Labor Commissioner’s Office Healthy Workplace Healthy Family Act of 2014 (AB 1522)
When a Denial Is Actually Legal
There are only a few circumstances where a California employer can lawfully turn down a sick leave request.
You Have Not Hit the 30-Day or 90-Day Mark
If you have not yet worked 30 days within a year of hire, or you have not reached your 90th day of employment, you are not eligible to use sick leave yet. A denial at that point is permitted by the statute.1California Department of Industrial Relations. Labor Commissioner’s Office Healthy Workplace Healthy Family Act of 2014 (AB 1522)
You Have Used Up Your Accrued Hours
Once you have exhausted your accrued balance for the year, your employer is not required to provide more paid sick time under this law. An employer can also cap your annual usage at 40 hours or five days even if your accrued balance is higher.1California Department of Industrial Relations. Labor Commissioner’s Office Healthy Workplace Healthy Family Act of 2014 (AB 1522) Other laws, like the ADA or FMLA, may still require unpaid leave in your situation.
Foreseeable Leave Without Reasonable Notice
For planned absences such as a scheduled appointment, an employer with a written policy can require reasonable advance notice. If you skip that notice for a foreseeable absence, the request may be denied. For sudden illness or an emergency, you only need to notify your employer as soon as you reasonably can.
What Your Employer Cannot Require
California law does not require you to produce a doctor’s note to use paid sick leave. An employer cannot condition the use of accrued time on medical records or a physician’s certification. When documentation demands are used to block a legitimate request, that is a denial of a right the statute guarantees, not a lawful screening.
Sick leave also covers more than your own illness. You can use it to care for a spouse, registered domestic partner, child, parent, parent-in-law, grandparent, grandchild, or sibling, plus one additional designated person each year. It also covers preventive care, routine checkups, and absences related to domestic violence, sexual assault, or stalking, including time to obtain a restraining order, seek medical attention, plan for safety, or relocate.
Retaliation Counts as a Denial
Approving the time off and then punishing you for taking it is just as illegal as refusing the request in the first place. California Labor Code Section 246.5 prohibits firing, threatening to fire, demoting, suspending, or discriminating against any employee for using accrued sick days, attempting to use them, filing a complaint, or cooperating in an investigation.2California Department of Industrial Relations. California Paid Sick Leave Frequently Asked Questions
Retaliation rarely looks like a termination letter. The common patterns are quieter: a shift change to a less desirable schedule after a sick day, a sudden negative performance review, cut hours, or a write-up for the same conduct others get away with. When the adverse action closely follows your use of sick leave, that timing alone can support a retaliation claim. These protections cannot be waived, including through a collective bargaining agreement.2California Department of Industrial Relations. California Paid Sick Leave Frequently Asked Questions
Discriminatory Denials
Federal anti-discrimination law adds another layer. It is illegal to deny or approve sick leave based on race, color, religion, sex (including pregnancy and sexual orientation), national origin, age, disability, or genetic information. The EEOC treats sick and vacation leave decisions as employment decisions subject to non-discrimination rules.3U.S. Equal Employment Opportunity Commission. Prohibited Employment Policies/Practices
The telltale sign is inconsistency. Two employees in similar roles call out under similar circumstances; one gets approved, the other denied, and the only difference between them is a protected characteristic. The same logic applies to discipline. Writing up one worker for sick leave use while overlooking identical behavior from others can constitute illegal discrimination.3U.S. Equal Employment Opportunity Commission. Prohibited Employment Policies/Practices
When Other Laws Force Leave Beyond Your Accrued Sick Time
Running out of accrued hours is not always the end of the conversation. If you have a disability, the Americans with Disabilities Act may require your employer to grant additional unpaid leave as a reasonable accommodation, even after you have exhausted sick leave, used up FMLA, or fallen outside company policy. The employer’s only defense is showing undue hardship, meaning significant difficulty or expense in context. Compliance with the FMLA alone does not establish undue hardship, and a blanket cap on leave days will not survive if a disabled employee needs more time.4U.S. Equal Employment Opportunity Commission. Employer-Provided Leave and the Americans with Disabilities Act5U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA
The FMLA separately provides up to 12 weeks of unpaid, job-protected leave per year for serious health conditions and certain other qualifying reasons. Eligibility is narrower than California sick leave: your employer must have at least 50 employees within 75 miles, and you must have worked there at least 12 months and 1,250 hours in the past year.6U.S. Department of Labor. Fact Sheet 28 – The Family and Medical Leave Act When both laws apply, your paid sick leave can run concurrently with FMLA, and the employer can require it.7U.S. Department of Labor. FMLA Frequently Asked Questions
Pregnant and postpartum workers have another layer of protection. Under the federal Pregnant Workers Fairness Act, an employer cannot force a pregnant employee onto leave when a reasonable accommodation would let them keep working, even if they temporarily cannot perform a core duty, as long as they will be able to perform it in the near future. Leave itself is treated as a reasonable accommodation when recovery from childbirth calls for it.
What to Do If You Have Been Denied
Start by checking whether the denial actually breaks the law. Confirm you have cleared the 30-day and 90-day thresholds, look at your accrued balance on a recent pay stub, and read your employer’s written sick leave policy. If it looks like a mistake, raising it with your manager or HR often ends the problem.
If the employer does not fix it, start documenting. Save emails, text messages, pay stubs, schedules, and any written communications about the request and the denial. Write down dates, times, and the names of everyone involved. That record is what carries a complaint.
Next, file a complaint with the California Labor Commissioner’s Office, which enforces the paid sick leave law. You can submit a report online, in person, or by mail to the office nearest where you performed the work.8California Department of Industrial Relations. Report a Labor Law Violation If you worked and were not paid for time you should have been, you can also file a separate wage claim.9Division of Labor Standards Enforcement (DLSE). How to File a Wage Claim Penalties against employers can include administrative fines, back wages for the denied leave, and reinstatement if you were terminated.
When the denial appears tied to a protected characteristic, a discrimination charge with the EEOC is also an option, generally within 300 days of the action in California. The EEOC investigates, and if the case is not resolved, you may eventually have the right to sue in federal court.3U.S. Equal Employment Opportunity Commission. Prohibited Employment Policies/Practices