An "implied employment contract" in California labor law is an agreement between you and your employer that is not in writing but is instead formed through both parties' behavior (including spoken promises).
An implied employment contract is an exception to the rule of at-will employment in California.
The "at-will" rule says that, absent a contrary agreement between an employer and employee, either party may terminate the employment relationship at any time, for any reason or no reason.

An implied contract is created by your employer's conduct--that is, its behavior.
Thus, the way to prove an implied contract exists between you and your employer is through evidence of the employer's conduct.: Chris is a skilled mechanic who works for an auto repair shop that focuses on luxury cars. But his employer does have a written "employee handbook" that lists several reasons why employment may be terminated (including improper behavior at work or unsatisfactory job performance).
In the employment law context, an implied contract typically means an agreement by the employer not to terminate the employee from his/her job without good cause.
Under California employment law, the default assumption for employees who do not have an employment contract or collective bargaining agreement is that the employer may fire him/her at any time, regardless of whether there is a good reason for doing so.
For example, if you decide to loan money to a friend, you may draw up the contract after you’ve already made the loan, in which case you’ll want to backdate the contract, making it so that the interest started accruing the day you loaned the money.
Likewise, if you haven’t made the loan yet, you may set the effective date to a future date, so that the interest only starts accruing when the actual loan has been made, either way, when getting a loan we suggest to stick to repayment plan for installment loans online.Even though there may have been an implied employment contract not to terminate him without cause, in this case his boss had good cause to fire him.An implied employment contract providing that you will not be terminated without good cause is only possible in situations where you are an at-will employee under California default employment law.Let’s take a look at the different possibilities, and what you need to know to understand the all-important “when” of an agreement.If a contract does not specify its effective date, it goes into effect on the date it was signed by the person to whom the contract was offered for a signature.But if you do have a written employment contract, and it specifies that you are an at-will employee, then typically courts will NOT decide that there was an implied contract not to terminate you.