Not as a legal status. California treats a 90-day probation as an introductory period inside at-will employment, so an employer can end the job without cause, but not for an unlawful reason. Several protections start on day one and a few start later.
Not as a legal status. California treats a 90-day probation as an introductory period inside at-will employment, so an employer can end the job without cause but not for an unlawful reason. Several protections start on your first day, and a few start later, so “probation” does not switch rights off.
I write this for two readers: the new hire counting down the first 90 days, and the employer deciding what an introductory period should say. The words do not change the law. What matters is which rule starts when, and that is what this guide lays out.
Is there a legal probationary period in California?
No. I found no California statute, DIR guidance or court statement that creates a legal status called a probationary period or an introductory period. The rule is Labor Code 2922: employment with no specified term may be ended by either side on notice. A specified term means more than one month, and the cause rules in Labor Code 2924 and 2925 apply only to those fixed-term jobs.
So a probationary period is a company policy, not a legal category. It can set an expectation, a review date and a benefits schedule. It cannot waive a statute, and it cannot turn an at-will job into one with a built-in right to keep it. The California HR laws by headcount hub shows which statutes begin at which size.
Can an employer fire me during probation without a reason?
Yes, with the same limits that apply on day 400. At-will means an employer does not need a good reason, but it cannot use a prohibited one. Three limits matter most:
Discrimination: Government Code 12940 bars discharge or discrimination based on protected traits, and the text sets no minimum length of service. The Fair Employment and Housing Act covers employers with five or more people, per Government Code 12926(d).
Harassment: 12940(j)(4)(A) defines the employer for harassment claims as anyone regularly employing one or more people.
If you are let go in month two, the question is not “was I still on probation?” The question is “what was the reason, and was it lawful?” A termination right after you asked about overtime, took a sick day or disclosed a pregnancy deserves a second look. The termination documentation guide shows what a fair file looks like.
Being let go in the first 90 days does not automatically cost you unemployment benefits either. The EDD says that if you are fired, your employer must prove there was misconduct, and its benefit determination guide notes that not every discharge for unsatisfactory performance is misconduct. Being a poor fit for the job, or lacking experience, is different from willful wrongdoing. File the claim and let the EDD decide. For the other steps after a separation, see the first 48 hours after a layoff.
Minimum wage: DIR says employers must pay all employees at least the minimum wage, which is $16.90 an hour in 2026, and it cannot be waived by agreement. There is a narrow learner exception that allows 85% of the minimum wage during the first 160 hours for workers with no related experience, so ask whether it applies before accepting a “training wage.”
Final pay: Labor Code 201 makes wages due immediately on discharge, and neither Section 201 nor 202 has a length-of-service exception. See final paycheck deadlines.
Sick leave accrual: it starts at the commencement of employment, per Labor Code 246(b)(1).
Which rights start later, and when?
A few do, and they are the ones employers tie to the word probation.
Using paid sick leave: an employee may use accrued days beginning on the 90th day of employment, per Labor Code 246(c). An employer may limit use to 40 hours or five days a year, and may front-load the full amount at the start of each year instead of using accrual, per the DIR paid sick leave page.
Group health coverage: federal rules bar a waiting period longer than 90 days, per 45 CFR 147.116. An employer cannot stretch “probation” to six months for coverage.
The three clocks do not match. A new hire can be eligible to use sick days at day 90 and not eligible for CFRA until after a year, so a good policy lists each benefit and its own start date instead of one blanket word.
Can an employer extend my probation, and what should I ask in week one?
Usually yes, because the length is a company choice and I found no California statute that sets or caps it. The limits come from elsewhere. An extension cannot push health coverage past the federal 90-day waiting period, cannot be used to deny a benefit the law already gives you, and cannot be a cover for a discriminatory or retaliatory decision.
If your manager extends your introductory period, ask for three things in writing: the reason, the new end date and the specific goals that will end it. A vague extension with no goals is the same warning sign I describe in the performance improvement plan guide: a process that cannot be passed because nobody defined passing. Note the date, keep the email, and ask what changes at the end of the period, such as pay, title or benefits.
Ask for the rules in writing before you need them. A short list does the work:
How does paid sick leave accrue, and does the company front-load it?
When does health coverage start, and is there a waiting period?
Who do I report a problem to, and is there a written complaint process?
What is the schedule for my 30, 60 and 90 day reviews?
Is my offer letter the whole agreement, and did anything promised in the interview make it in?
Keep your offer letter, handbook acknowledgment and any email with a promise in it. Labor Code 432 entitles you to a copy of anything you sign relating to getting or keeping the job, so ask if you were not given one. If you are ever put on a plan, the PIP guide explains how to respond.
How should an employer write an introductory period policy?
Call it an introductory period, say employment is at will throughout, and list each benefit with its real start date. A policy that promises “you can only be let go for cause after 90 days” can be read as a promise, so skip that wording unless you mean it.
State the review schedule: a 30-day check-in, a 60-day review and a 90-day conversation, each in writing.
Define the goals in measurable terms, so a manager is not improvising.
List sick leave, health coverage and leave eligibility separately.
Do not use the period to pay below minimum wage, to delay final pay, or to skip required notices.
Employers: pull your offer letter and handbook, find the word probation, and replace it with the introductory period language and benefit dates above. Managers should also stop telling new hires they are “safe” after 90 days, because no date makes a job guaranteed. New hires: write down your start date, mark day 90 on your calendar, and confirm in writing how sick leave and health coverage work. Please do not wait for a problem to surface before you do this, since a vague policy is easiest to fix on a quiet day. If this is your first hire, does a small business need HR? and startup HR by funding stage cover what to set up first. For a self-check, use the California HR compliance checklist, and if you want your documents reviewed together, the California HR compliance check-up covers it.
McKinley holds a J.D. but is not a licensed attorney. Articles here are general information, not legal advice. For your specific situation, talk with an employment attorney.
Data current as of September 2026. Sources are linked where each figure appears.
This article is general information, not legal advice. Laws change and every situation is different; for advice on yours, talk with an employment attorney.
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