Like many other states, Arizona is an “at-will” employment state. This generally means that employers can terminate employees at any time for any reason—or even no reason at all—without incurring legal liability. Likewise, an employee can quit at any time without providing a reason or advanced notice.
Look in your contract to see the notice you need to give. If you've been in your job for less than a month, you don't have to give notice unless the contract or terms and conditions require you to. If you've been in your job for more than 1 month, you must give at least 1 week's notice.
Use a termination letter. This is rarely required by law, but drafting a termination letter gives managers time to carefully think through what to say and how to say it. A termination letter should explain the decision to terminate employment and a general statement of the reasons behind it.
Your employer can terminate you at any time for any reason, with or without notice, except for discrimination. They're not required to give you a write up. Just the same way you can quit your job at any time for any reason or no reason at all.
Arizona law provides that an employer may terminate an employee at any time. The term is called “at-will employment.” The legal basis for this is that the employment relationship is considered to be like a contract and at any time either party may decide to end the employment relationship. (A.R.S. § 23-1501).
While a termination letter is considered good practice, no federal or Arizona laws require it. In fact, because Arizona is an “at-will” employment state, an employer is under no obligation to provide a reason for firing an employee.
Is a Letter of Termination Required? For the most part, the Federal Labor Standards Act (FLSA) doesn't require organizations to provide letters of termination. The exceptions are when employees are part of a union, a collective bargaining agreement, or certain mass layoffs or corporate closures.