California law provides employees with strong legal protections regarding the use of sick leave. But knowing those protections exist and knowing whether they apply to your specific situation are two different things. If you were fired shortly after calling in sick or returning from a medical leave, it is worth understanding exactly where the law stands and what your options are.

What California Law Says About Sick Leave

Under California's Healthy Workplaces Healthy Families Act, most employees accrue paid sick leave that their employer cannot legally penalize them for using. That applies whether you are full-time, part-time, or even a temporary worker. As of 2024, employers are required to provide at least five days or forty hours of paid sick leave per year.

The keyword is "penalize." Using your accrued sick time is legally protected when you are treating your own illness, attending a preventive care appointment, caring for a sick family member, or recovering from a documented health condition. If you followed your company's call-out procedure and had the hours available, your employer has no legal basis to discipline you for it, let alone fire you. That protection is not just a policy guideline. It is backed by the California Labor Code, and violating it exposes your employer to real liability.

When Does a Firing Cross the Line Into Retaliation?

This is where most clients understandably get confused. California is an at-will employment state, which means an employer can generally terminate someone without giving a reason. However, at-will employment has limits, and one of the clearest limits is this: you cannot be fired for exercising a legal right.

Using protected sick leave is a legal right. Firing someone for doing so is retaliation, and retaliation is illegal under California law regardless of how the employer tries to frame it.

The thing courts pay close attention to is timing. If you called in sick on a Monday and got your termination notice on Wednesday, that sequence matters. It does not automatically prove your case, but it creates what we call circumstantial evidence of retaliatory motive. Employers rarely put "we fired her because she got sick" in writing. The timeline often tells the story instead.

Retaliation does not always look like an outright firing, either. Watch for these patterns when you return from leave:

• Sudden hour reductions with no prior warning.

• Demotion or reassignment to a less desirable role.

• Write-ups for things that were never an issue before.

• Exclusion from meetings or projects you were previously part of.

• Increased scrutiny or micromanagement that did not exist before your leave.

Any of these actions can be just as illegal as a termination, and if you file a complaint about them and then get fired, that compounds the employer's legal exposure significantly.

What If You Needed More Than a Few Days Off?

Five days cover a lot of situations, but not all of them. If you were dealing with a serious health condition and needed extended time away, two other laws become relevant.

The California Family Rights Act (CFRA) entitles eligible employees up to twelve weeks of job-protected leave for a serious medical condition, including caring for a seriously ill family member. Federal law provides a parallel protection through the Family and Medical Leave Act (FMLA). The qualifying thresholds for both are similar: your employer needs to meet a minimum size requirement, you need to have worked there for at least twelve months and logged at least 1,250 hours in the past year.

These are not the same as paid sick leave, and qualifying requires meeting those criteria, but if you do qualify, your employer is legally required to hold your job. Terminating someone while they are on approved CFRA or FMLA leave is one of the cleaner wrongful termination cases we see, because the employer's obligation is so clearly spelled out in the statute.

When Can an Employer Legally Fire You for Sick Leave?

Not every termination that follows a sick leave is wrongful. Employers can still fire someone for legitimate, documented reasons that have nothing to do with the time off. If you were already on a performance improvement plan before the sick leave and did not meet those goals, that termination may hold up. If your entire department were eliminated in a company-wide layoff, that's likely legal too, even if the timing feels suspicious. The question courts ask is whether the firing would have happened regardless of the sick leave. If the answer is genuinely yes, the employer is probably on solid ground.

What makes a case strong is when there is no documented basis for the termination before the sick leave, and suddenly, one appears right after. That pattern is exactly what employment attorneys look for.

What You Should Do Right Now

If you believe your termination was connected to your sick leave, the steps you take in the next few days matter.

Before you lose access to company systems, preserve everything you can. That means pay stubs showing your accrued sick leave balance, any emails or texts related to your time off request, the employee handbook, performance reviews from before your leave, and any communications from your manager about your absence. If there were verbal comments about your attendance or your absence being an inconvenience, write them down now while they are fresh, including the date, who said it, and as close to word-for-word as you can manage.

You should also request your personnel file. California law gives you the right to it, and it is particularly important if your employer is claiming performance issues you never heard about before. The file will show whether those concerns existed prior to your sick leave or were created after the fact to justify the firing.

Finally, do not sign anything your employer sends you without having an attorney review it first. Severance agreements almost always include a release of claims, and the three things to keep in mind are:

• Signing waives your right to sue, often permanently.

• The severance amount offered is frequently far less than what a successful claim would recover.

• You typically have at least 21 days to consider the agreement before signing, and your employer cannot legally pressure you to sign faster.

The Honest Bottom Line

California's sick leave protections are real and meaningful, but whether they apply to your situation depends on the specific facts: how close the termination was to your leave request, whether there was any documented performance basis beforehand, what your employer actually said to you, and whether CFRA or FMLA protections applied.

If you need an experienced employment attorney in the Bay Area, contact our law firm today!